Siemens AG 2016 /2 Introduction /9 SIWAREX WL260 SP-S AA /9 Load cell /10 SIWAREX WL260 SP-S AB /10 Load cell /11 SIWAREX WL260 SP-S AE /11 Load cell /12 SIWAREX WL260 SP-S SA /12 Load cell /1 SIWAREX WL260 SP-S SB /1 Load cell /14 SIWAREX WL260 SP-S SC /14 Load cell /16 SIWAREX WL250 ST-S SA /16 Load cell /18 SIWAREX WL20 BB-S SA /18 Load cell /20 Base plate with overload protection /21 Elastomer bearing /22 Compact mounting unit /2 SIWAREX WL20 SB-S SA /2 Load cell /25 Compact mounting unit /26 Base plate and Elastomer bearing /28 SIWAREX WL20 SB-S CA /0 SIWAREX WL270 CP-S SA /0 Load cell /2 Pressure piece set and adapter plates / Compact mounting unit /5 SIWAREX WL270 CP-S SB /5 Load cell /7 Pressure piece set /8 Compact mounting unit /9 SIWAREX WL270 K-S CA /9 Load cell /4 Self-aligning bearing /45 SIWAREX WL280 RN-S SA /45 Load cell /54 Self-aligning bearing /56 Elastomer bearing /58 Compact mounting unit and guide element /60 SIWAREX R /60 Introduction /61 Platform and bending beam load cells /6 Shear beam load cells /65 Bending ring load cells /67 Compression load cells /69 Accessories /69 SIWAREX JB junction box with aluminium housing /71 SIWAREX JB junction box with stainless steel housing /72 SIWAREX EB extension box /74 Grounding cable /75 Configuration examples /75 Introduction /76 Configuration example 1 /77 Configuration example 2 /78 Configuration example Siemens WT 10 2016
Introduction Overview Siemens offers two load cell series: SIWAREX R and SIWAREX WL200. Both series are equipped with strain gauges. They are used for static and dynamic weight measurements. The different load cell series cover rated loads from 0. kg (0.661 lb) to 500 t (492.10 tn. L.). The variety of modules available and their characteristics: Most are made of stainless steel to provide a high degree of corrosion protection Most are hermetically sealed housing for use even in harsh and aggressive environments Compact modules for easy installation This makes SIWAREX load cells suitable for virtually all applications in industrial weighing, e.g. container and hopper scales, platform scales, vehicle scales, hybrid scales, etc. Almost all series have been approved for use with Class III legalfor-trade commercial scales in accordance with EN 45501 and conform to OIML R60. Load cells can also be supplied for other rated loads, higher accuracy, and/or with EEx (i) approval. /2 Siemens WT 10 2016
Introduction 1 Type Possible applications Example picture Platform Small platform scales, small conveyor scales Series WL260 SP-S AA R, SP WL260 SP-S AB WL260 SP-S AE Rated load E max, 5, 10 kg (6.61, 11.02, 22.05 lb) 20, 50 kg (44.09, 110.2 lb) 100kg (220.46lb) 6.12 kg (1.22, 26.45 lb) 50... 500 kg (110.2... 1102.1lb) 0. kg (0.66 lb) 0.6 kg (1.2 lb) 1 kg (2.20 lb) 1.2 kg (2.65 lb) 1.5 kg (.1 lb) kg (6.61 lb) Accuracy class C 8) C C 2) 0.015 % Max. load cell verification interval (n IC ) 000 000 000 Min. load cell verification E max /15 000 E max /7 500 E max /12 000 E max /12 000 E max /10 000 interval (V min ) Supply voltage (U sr ) 5...12V 5...15V 5...12V Rated characteristic value 2mV/V 2mV/V 2mV/V Degree of protection IP65 IP66/IP68 IP65 IP65 Material Aluminum Aluminum Stainless steel Aluminum Ex protection according to ATEX (optional) - ) - - 2 Type Possible applications Example picture Platform Platform scales, small conveyor scales Series WL260 SP-S SA WL260 SP-S SB WL260 SP-S SC Rated load E max 5... 200 kg (11.02... 440.92 lb) 6... 60 kg (1.2... 12.28 lb) 10... 500 kg (22.05... 1 102.1 lb) Accuracy class C 2) C C, C MR, C4 MR Max. load cell verification interval (n IC ) 000 000 000 Min. load cell verification interval (V min ) E max /9 000 E max /15 000 E max /10 000 at C E max /20 000 at C MR E max /40 000 at C4 MR Supply voltage (U sr ) 5...12V 5...12V 5...12V Rated characteristic 2mV/V 2mV/V 2mV/V value Degree of protection IP67 IP68 IP68, IP69K Material Stainless steel Stainless steel Stainless steel Ex protection according to ATEX (optional) II1 G EX IA IIC T4 II1 D EX IAD 20 T7GRAD C II G EX NL IIC T4 - - Siemens WT 10 2016 /
Introduction Type Possible applications Example picture Bending beam Container, conveyor and platform scales Series WL20 BB-S SA WL20 SB-S CA R, BB Rated load E max 10 1)... 100 kg (22.05... 220.46 lb) 200...500 kg (440.92... 1 102.1 lb) 100 kg (220.46 lb) 250 kg (551.15 lb) Accuracy class C 6) C, C4, C5 C Max. load cell verification interval (n IC ) 000 at C: 000 at C4: 4 000 at C5: 5 000 000 Min. load cell verification interval (V min ) E max /15 000 E max /6 000 at C: E max /10 000 at C4: E max /15 000 at C5: E max /20 000 10... 50 kg (22.05... 771.62 lb) E max /15 000 Supply voltage (U sr ) 5... 10 V 18 V 5...15V Rated characteristic value 2mV/V mv/v 2mV/V Degree of protection IP68 IP67 IP68 Material Stainless steel Nickel plated special steel Stainless steel Ex protection according to ATEX (optional) 5) ) 4 Type Possible applications Example picture Shear beam Container, conveyor, overhead rail and platform scales Series WL20 SB-S SA WL20 SB-S CA R, SB Rated load E max 500 kg (1 102.1 lb) 1 t (0.98 tn. L), 2 t (1.97 tn. L), 5 t (4.92 tn. L) 500 kg... 10 t (1 102.1 lb... 9.84 tn. L.) 0.5...5t (0.49... 4.92 tn. L) Accuracy class C C, C4, C5 C Max. load cell verification interval (n IC ) Min. load cell verification interval (V min ) 000 at C: 000 at C4: 4 000 at C5: 5 000 E max /10 000 E max /15 000 at C: 10 000 at C4: 15 000 at C5: 18 000 ( t... 10 t) or 20 000 (0.1 t... 2.5 t) 000 E max /10 000 Supply voltage (U sr ) 5...12V 18 V 5...18V Rated characteristic value 2mV/V mv/v 2mV/V Degree of protection IP68 IP66/IP68 IP67 IP66/IP68 Material Stainless steel Nickel plated special steel Stainless steel Ex protection according to ATEX (optional) 5) ) /4 Siemens WT 10 2016
Introduction 5 Type Bending ring S-Type Possible applications Container, conveyor and platform scales Tension and pressure applications, suspended scales, tanks, container weighers, hybrid scales Example picture Series R, RN WL250 ST-S SA Rated load E max 60... 280 kg 0.5... 10 t 1... 60 t 50... 100 kg 0.25... 2.46 t 5... 10 t (12.28... 617. 29 lb) (0.49... 9.84 tn. L) (12.79... 59.05 tn. L) (110.2... 220.46 lb) (0.24... 59.05 tn. L) (4.92... 9.84 tn. L) Accuracy class C C Max. load cell verification 000 000 interval (n IC ) Min. load cell verification E max /17 500 E max /10 000 E max /17 500 E max /7 000 E max /10 000 E max /12 000 interval (V min ) Supply voltage (U sr ) 5...0V 5...12V Rated characteristic 1mV/V 2mV/V mv/v value Degree of protection IP66/IP68 IP67 Material Stainless steel Stainless steel Ex protection according to ATEX (optional) ) 5) 6 Type Possible applications Example picture Compression cell Container, hopper and vehicle scales Series WL270 CP-S SA WL270 CP-S SB WL270 K-S CA R, CC Rated load E max 0.5, 1, 2, 5, 10, 20, 0, 50 t (0.49, 0.98, 1.97, 4.42, 9.84, 19.68, 29.5, 49.21 tn. L) 100 t (98.42 tn. L) 2.8 500 t (2.76 492.10 tn. L.) 10... 60 t (9.84... 59.05 tn. L) 100 t (98.42 tn. L) Accuracy class C 7) 0.1 % C C1 Max. load cell verification 000 000 (not calibratable) 000 1000 interval (n IC ) Min. load cell verification E max /10 000 E max /12 000 (not calibratable) E max /12 500 E max /10 000 interval (V min ) Supply voltage (U sr ) 5...12V 5... 12 V 6... 12 V 5... 25 V Rated characteristic 2mV/V 2mV/V 1.5 mv/v 2mV/V 2mV/V value Degree of protection IP68 IP68 IP65 IP66/IP68 Material Stainless steel Stainless steel Painted steel Stainless steel Stainless steel Ex protection acc. to 5) - 4) ATEX (optional) 7 8 Siemens WT 10 2016 /5
1) 2) ) 4) 5) 6) 7) 8) Siemens AG 2016 Introduction Type Compression cell (continued) Ring-torsion load cell Possible Container, hopper and vehicle scales Container, conveyor, platform and roller table scales applications Example picture Series R, K WL280 RN-S SA Rated load E max 2.8... 280 t (2.75... 275.58 tn. L) 60 280 kg (12.28 1617.29 lb) 0.5 10 t (0.49 9.84 tn. L.) 1 60 t (12.80 59.05 tn. L) Accuracy class 0.1 % C Max. load cell verification - 000 interval (n IC ) Min. load cell verification - E max /16 000 E max /17 500 E max /25 000 interval (V min ) Supply voltage (U sr ) 6...12V 5... 0 V Rated characteristic 1.5 mv/v 1mV/V 2mV/V 2mV/V value Degree of protection IP65 IP66/IP68 Material Steel, painted Stainless steel Ex protection acc. to - ) ATEX (optional) 1) OIML type approval for type SIWAREX WL20 BB-S SA 10 kg (22.04 lb) available soon. 2) OIML type approval for type SIWAREX WL260 SP-S AB and SIWAREX WL260 SP-S SA available soon. ) II 2 G EEx ib IIC T6/T4 II G, EEx na/nl IIC T6/T4, II 1D/2D/D T 70 C. 4) II 2 G EEx ib IIC T6/T4 II G, EEx na/nl IIC T6/T4, II 1D/2D/D T 70 II 2 G EEx ib IIC T6/T4, II G EEx na /nl IIC T6/T4, II 1D / 2D / D T 70 C. 5) II 1G Ex ia IIC T4 Ta= -20 C... +40 C; II G Ex nl IIC T4 Ta= -20 C... +40 C; II 1D Ex iad 20 IP6x T 7 C. 6) Accuracy class C4 with Y=15 000 is available on request. 7) 2 t and 5 t versions are not calibratable. 8) Accuracy class C4 with Y=20 000 is available on request. /6 Siemens WT 10 2016
Introduction Design Load cells are sensors that convert a mechanical variable (i.e. weight) into an electrical signal, usually a voltage. They work with different measuring principles. Siemens load cells in the SIWAREX WL200 and SIWAREX R series use socalled strain gauges. These are specially formed electrical conductors which are insulated by means of a suitable material. The strain gauges are attached to the basic element, a specially formed spring body, by friction locking. Under the influence of a weight force F, the spring body is deformed (see schematic presentation) and as a result the strain gauge deforms elastically. Due to the change in the external shape of the strain gauge, the ohmic resistance of its conductor also changes. The top left and bottom right strain gauges are compressed, their resistance films are shortened and the ohmic resistance is reduced accordingly. The top right and bottom left strain gauges are stretched, their resistance films are extended and the ohmic resistance is increased. For each load cell, at least 4 strain gauges are connected together to form a complete Wheatstone bridge. The stretched or compressed strain gauges are connected so that the positive or negative resistance changes are added together to form a total imbalance in the bridge. On one bridge diagonal, the power voltage is applied (with 6-conductor technique, also the sensor voltage, SENSE) and on the other diagonal, the measured voltage is tapped. With a constant power voltage (EXC), the measured voltage (SIG) changes proportionally to the introduced load. SG stretched SG compressed EXC+ SENSE+ SG compressed SIG- Principle of a Wheatstone bridge SG stretched SIG+ SENSE- EXC- G_WT01_XX_10091 F compressed SG stretched SG compressed SG stretched SG Principle of a bending load cell, unloaded and loaded Siemens WT 10 2016 /7
Introduction Questionnaire SIWAREX Customer information Contact: Company: Address: City: Zip/Postal Code: E-mail: Prepared by: Date: Country: Notes on application: Phone: ( ) Fax: ( ) Electronics Application type Non Automatic Weighing Instrument Truck/Wagon scale static Checkweigher Platform Scale Automatic filling/big Bag scale Solid flow meter Vessel/Silo/level measurement Dosing scale Weighfeeder Truck scale Belt scale Loss in weight dosing scale Force measurement Type of material: Requested features Basic weighing functions Error control and logging Fast weight value processing Recording of weighing sequence Preventive diagnostics Legal-for-trade With Ex approval Zone type/number: CPU integration SIMATIC S7-1200 centrally SIMATIC S7-1500 centrally SIMATIC PCS7 Version: Other SIMATIC S7-00 centrally Stand-alone TIA Portal Version: Name: Distributed, using: SIWAREX Mechanic Load cells Total maximum weight: Load cells quantity: Dead load : Number of support points: Required precision: Vibration (Motor, Mixer, etc.) Guide elements required? Lift up protection Diagnostics High overload protection High measuring rate Ex Protection Stainless steel required? Special application requirements Pictures available Drawing available Retrofit of an old installation Siemens AG This questionnaire is only a guideline. For special configurations refer to your Siemens contact person. www siemens com/weighingtechnology /8 Siemens WT 10 2016
SIWAREX WL260 SP-S AA Load cell Overview The load cell is suitable for small platform scales with one load cell (max. platform size 400 x 400 mm (15.75 x 15.75 inch)) as well as for use in medium accuracy weighing machines of Class III with a max. scale verification intervals n max = 000d. Design The measuring element is hermetically encapsulated and has a calibrated output current. Technical specifications SIWAREX WL260 SP-S AA Possible applications Platform scales Small conveyor scales Type Platform load cell Loads Rated load E max. kg(6.61lb) 5 kg (11.02 lb) 10 kg (22.05 lb) 20 kg (44.09 lb) 50kg(110.2lb) 100 kg (220.46 lb) Min. initial loading E min 0%E max Max. working load L u 150 % E max Break load L d 00 % E max Max. lateral load L lq 100 % E max Measurement characteristic values Rated measuring path h n at E max <0.6mm Rated characteristic value C n 2.0±0.2mV/V Tolerance D0 of zero signal <±2%C n Max. scale interval n Ic 000 Min. scale interval V min E max =, 5, 10 kg (6.61, 11.02, 22.05 lb) E max /15 000 E max = 20, 50 kg (44.0, 110.2 lb) E max /7 500 E max = 100 kg (220.46 lb) E max /12 000 Combined error F comb ±0.02%C n Deviation F v ±0.017%C n Creepage error F cr 0 min ±0.02%C n Electrical characteristic values Recommended reference voltage U ref DC 5 12 V Input resistance R e 409 ±6 Output resistance R a 50 ± Insulation resistance R is 5000M at 50 V DC Temperature coefficient Zero signal T Ko 0.017 % C n /5 K Characteristic value T Kc 0.014 % C n /5 K SIWAREX WL260 SP-S AA Connection and ambient conditions Sensor material (DIN) Aluminum Max. tightening torque of fixing screws 15... 20 Nm Function Color EXC + (supply +) Red EXC (supply -) Black SIG + (measured signal +) Green SIG (measured signal -) White Sense + (sensor line +) Blue Sense - (sensor line -) Brown Shield Transparent Rated temperature range B tn -10... +40 C (14... 104 F) Operating temperature range B tu -5... +65 C (-1... +149 F) Storage temperature range B ts -5... +65 C (-1... +149 F) Degree of protection to DIN EN 60529; IP65 IEC 60529 Certificates and approvals Accuracy class according to C OIML R60 Selection and ordering data Load cell type WL260 SP-S AA Legal-for-trade according to OIML R60 to 000d, connection cable m (9.84 ft) Click on the Article No. for the online configuration in the PIA Life Cycle Portal. Rated load kg(6.61lb) 5 kg (11.02 lb) 10 kg (22.05 lb) 20 kg (44.09 lb) 50kg(110.2lb) 100 kg (220.46 lb) Dimensional drawings 40 (1.57) 8.6 (1.52) 25 (0.98) 19 11 (0.75) (0.4) 1 5.8 (0.2) 4 (1.4) 1 1 19 (0.75) 150 (5.91) Threaded hole M6, depth 15 (0.59) Load cell SIWAREX WL 260 SP-S AA, dimensions in mm (inch) Article No. 7MH5102- D 0 0 1 K 1 P 2 A 2 G 2 P A 19 (0.75) 1 (1.22) 1 5.8 (0.2) Siemens WT 10 2016 /9
SIWAREX WL260 SP-S AB Load cell Overview The load cell is suitable for small to medium platform scales with one load cell (max. platform size 600 x 600 mm (2.62 x 2.62 inch)) as well as for use in medium accuracy weighing machines of Class III with a max. verification interval n max = 000d. Design The measuring element is hermetically encapsulated and has a calibrated output current. Technical specifications 1) Selection and ordering data Article No. SIWAREX WL260 SP-S AB Possible applications Type Rated Loads E max. Platform scales Conveyor scales Platform load cell 50kg(110.2lb) 75kg(165.5lb) 100 kg (220.46 lb) 150 kg (0.69 lb) 200 kg (440.92 lb) 00 kg (661.7 lb) 500 kg (1 102.1 lb) 0%E max 150 % E max 00 % E max 100 % E max Min. initial loading E min Max. working load L u Break load L d Max. lateral load AL lq Measurement characteristic values Rated measuring path h n at E max <1.22mm (0.05inch) Rated characteristic value C n 2.0±0.2mV/V Tolerance D0 of zero signal <±2%C n Max. scale interval n Ic 000 Min. scale interval V min E max /10 000 Combined error F comb ±0.02% C n Deviation F v ±0.017% C n Creepage error F cr 0 min ±0.02%C n Temperature coefficient Zero signal T Ko 0.017 % C n /5 K Characteristic value T Kc 0.014 % C n /5 K Electrical characteristic values Recommended reference voltage U ref DC 5 12 V Input resistance R e 409 ±6 Output resistance R a 50 ± Insulation resistance R is 5000M at 50 V DC Connection and ambient conditions Sensor material (DIN) Aluminum SIWAREX WL260 SP-S AB Max. tightening torque of fixing screws 5... 40 Nm Rated temperature range B tn -10... +40 C (14... 104 F) Operating temperature range B tu -5... +65 C (-1... +149 F) Storage temperature range B ts -5... +65 C (-1... +149 F) Degree of protection to DIN EN 60529; IP65 IEC 60529 Connection cable Function Color EXC + (supply +) Red EXC (supply -) Black SIG + (measured signal +) Green SIG (measured signal -) White Sense + (sensor line +) Blue Sense - (sensor line -) Brown Shield Transparent Certificates and approvals Accuracy class according to C 1) OIML R60 Load cell type WL260 SP-S AB 7MH510- Connecting cable m (9.84 ft) D 0 0 Click on the Article No. for the online configuration in the PIA Life Cycle Portal. Rated load 50kg(110.2lb) 75kg(165.5lb) 100 kg (220.46 lb) 150 kg (0.69 lb) 200 kg (440.92 lb) 00 kg (661.7 lb) 500 kg (1 102.1 lb) Dimensional drawings 76 (2.99) 1 7.8 (0.1) 1 Threaded hole M8, depth 15 40 (1.57) 25 (0.98) 40 (1.57) 25 (0.98) 191 (7.52) 2 P 2 S A E G K P Load cell SIWAREX WL 260 SP-S AB, dimensions in mm (inch) 1 60 (2.6) 75 (2.95) 7.8 (0.1) 1) OIML type approval for SIWAREX WL260 SP-S AB available soon. /10 Siemens WT 10 2016
Overview SIWAREX WL260 SP-S AE Cable connection Function EXC + (supply +) EXC (supply -) SIG + (measured signal +) SIG (measured signal -) Screening SIWAREX WL260 SP-S AE Color Red Black Green White Transparent Load cell SIWAREX WL260 SP-S AE load cell The SIWAREX WL260 SP-S AE platform load cell is suitable for the smallest load ranges from 0. kg to kg and platform sizes up to 200 mm x 200 mm. The load cell can be used in high resolution scales. The error amounts to a maximum of 0.015% in relation to the rated characteristic value. Design The measurement element is a spring body made of aluminum. Due to IP65 degree of protection, the load cell is suitable for cleaning with water jets. Ordering data Load cell type WL260 SP-S AE Connecting cable 0.4 m (14.4 inch) Click on the Article No. for the online configuration in the PIA Life Cycle Portal. Rated load Article No. 7MH5120-0. kg (0.66 lb) 0 K 0.6 kg (1.2 lb) 0 Q 1 kg (2.20 lb) 1 A 1.2 kg (2.64 lb) 1 B 1.5 kg (.1 lb) 1 E kg (6.61 lb) 1 K Accuracy class 0.015 % Q 0 0 Technical specifications SIWAREX WL260 SP-S AE Possible applications Model Loads Rated loads E max. Measurement characteristic values Rated characteristic value C n Combined error F comb Small platform scales Small conveyor scales Platform load cell 0. kg (0.66 lb) 0.6 kg (1.2 lb) 1 kg (2.20 lb) 1.2 kg (2.64 lb) 1.5 kg (.1 lb) kg (6.61 lb) 0.9 ± 0.1 mv/v ±0.015% C n Dimension drawing 110 M (4x) 7 5 10 10 G_WT01_XX_10142 Repeatability F v ±0.017% C n Creep error F cr 0 min ±0.015% C n Temperature effect Zero signal T Ko 0.0 % C n /10 K Characteristic value T Kc 0.0 % C n /10 K Electrical characteristic values Recommended reference voltage DC 6 12 V U ref Input resistance R e 8 ± 6 Output resistance R a 51 ± Insulation resistance R is 5000M at DC 50 V Connection and environmental conditions Rated temperature range B tn -10 +40 C (14... 104 F) Operating temperature range B tu -20 +50 C (-4... 122 F) Storage temperature range B ts -20 +50 C (-4... 122 F) Sensor material (DIN) Aluminum Degree of protection to EN 60529 IP65 IWAREX WL260 SP-S AE load cell Siemens WT 10 2016 /11
SIWAREX WL260 SP-S SA Load cell Overview The load cell is suitable for small to medium platform scales with one load cell (max. platform size 400 x 400 mm) as well as for use in medium accuracy weighing machines of Class III with a max. scale interval number n max = 000d. It is made of stainless steel and therefore also suitable for use in harsh environments. Design The measuring element is hermetically encapsulated and has a calibrated output current. Technical specifications 1) Selection and ordering data Article No. SIWAREX WL260 SP-S SA Max. torque fixing screws E max =, 5, 10, 20, 50, 100 kg (6.61, 11.02, 22.05, 44.09, 110.2, 220.46 lb) E max = 200 kg (440.92 lb) Rated temperature range B tn Operating temperature range B tu Storage temperature range B ts Degree of protection to DINEN60529; IEC60529 Function EXC + (supply +) EXC (supply -) SIG + (measured signal +) SIG (measured signal -) Sense + (sensor line +) Sense - (sensor line -) Shield Certificates and approvals Accuracy class according to OIML R60 14 Nm 16 Nm -10... +40 C (14... 104 F) -5 +65 C (-1... +149 F) -40 +70 C (-40... +158 F) IP67 Color Green Black White Red Blue Yellow Transparent C 1) SIWAREX WL260 SP-S SA Possible applications Platform scales Small conveyor scales Load cell type WL260 SP-S SA 7MH5104- Type Platform load cell Legal-for-trade according to OIML R60 to 000d, connection cable m (9.84 ft) D 0 Loads Click on the Article No. for the online configuration in Rated load E max. 5 kg (11.02 lb) the PIA Life Cycle Portal. 10kg(22.05lb) Rated load 20kg(44.09lb) 5 kg (11.02 lb) 1 P 50 kg (110.2 lb) 10 kg (22.05 lb) 2 A 100 kg (220.46 lb) 20 kg (44.09 lb) 2 G 200 kg (440.92 lb) 50kg(110.2lb) 2 P Min. initial loading E min 0%E max 100 kg (220.46 lb) A Max. working load L u 150 % E max 200 kg (440.92 lb) G Break load L d 00 % E max Max. lateral load L lq 100 % E max Explosion protection Measurement characteristic Without 0 values Explosion protection for zones 0, 1, 2, 20, 21, 22 1 Rated measuring path h n at E max 0.27 ± 0.05 mm (0.01 ± 0.002 inch) Rated characteristic value C n 2.0±0.2mV/V Dimensional drawings Tolerance D0 of zero signal <±1.0%C n Max. scale interval n Ic 000 1 Min. scale interval V min E max /9 000 Combined error F comb ±0.02% C n Deviation F v ±0.017% C n Creepage error F cr 0 min ±0.02%C n 19 (0.75) Temperature coefficient 1 25 (0.98) 25 (0.98) Zero signal T Ko 0.017 % C n /5 K 19 (0.75) 4 (1.4) Characteristic value T Kc 0.014 % C n /5 K Electrical characteristic values Recommended reference voltage U ref DC 5 12 V Input resistance R e 8 ±6 150 (5.91) Output resistance R a 51 ± Insulation resistance R is 5000M at 50 V DC 1 Threaded hole M6, thread depth 15, hole depth 18 Connections/ambient conditions Sensor material (DIN) Stainless steel Load cell SIWAREX WL 260 SP-S SA, dimensions in mm (inch) 1) OIML type approval for SIWAREX WL 260 SP-S SA available soon. 40 (1.57) 8 (1.50) 25 (0.98) 1 (1.22) 8 (1.50) /12 Siemens WT 10 2016
SIWAREX WL260 SP-S SB Load cell Overview The platform load cell SIWAREX WL260 SP-S SB is excellently suited for use in platform scales with dimensions up to and including 50 x 50 mm (1.78 x 1.78 inch). It is approved for use in Class III commercial scales with maximum divisions of n max to 000d. Design The measuring element is made of stainless steel, hermetically sealed and has a calibrated output current. The load cell meets the IP68 degree of protection. Technical specifications SIWAREX WL260 SP-S SB Possible applications Type Loads Rated load E max Min. initial loading E min Max. working load L u Break load L d Max. lateral load L lq Measurement characteristic values Rated measuring path h n at E max = 6 kg (1.2 lb) E max = 12 kg (26.46 lb) E max = 0 kg (66.14 lb) E max = 60 kg (12.28 lb) Platform scales Small conveyor scales Platform load cell 6 kg (1.2 lb) 12 kg (26.46 lb) 0 kg (66.14 lb) 60kg(12.28lb) 0%E max 150 % E max 00 % E max 100 % E max 0.24 ± 0.02 mm (0.009 ± 0.0008 inch) 0.19 ± 0.01 mm (0.008 ± 0.0004 inch) 0.15 ± 0.01 mm (0.006 ± 0.0004 inch) 0.22 ± 0.0 mm (0.009 ± 0.0011 inch) 2.0±0.2mV/V <±2.0%C n Rated characteristic value C n Tolerance D0 of zero signal Max. scale interval n lc 000 Min. scale interval V min at E max = 6, 12, 0, 60 kg (1.2, 26.46, E max /15 000 66.14, 12.28 lb) Combined error F comb ±0.02%C n Deviation F v ±0.02%C n Creepage error F cr 0 min ±0.025%C n Temperature coefficient Zero signal T Ko 0.009 % C n /10 C Characteristic value T Kc 0.009 % C n /10 C SIWAREX WL260 SP-S SB Electrical characteristic values Recommended reference voltage U ref DC 5 12 V Input resistance R e 400 ±20 Output resistance R a 50 ±.5 Insulation resistance R is 5000M at 50 V DC Connections and ambient conditions Sensor material (DIN) Stainless steel Max. tightening torque of fixing screws 10 Nm Rated temperature range B tn -10...+40 C(14...104 F) Operating temperature range B tu -5 +65 C (-1... +149 F) Storage temperature range B ts -5 +65 C (-1... +149 F) Degree of protection to DIN EN 60529; IP68 IEC 60529 Connection cable Function Color EXC + (supply +) Green EXC (supply -) Black SIG + (measured signal +) White SIG (measured signal -) Red Sense + (sensor line +) Yellow Sense - (sensor line -) Blue Shield (not connected to housing) Transparent Certificates and approvals Accuracy class according to C OIML R60 Selection and ordering data Load cell type WL260 SP-S SB Legal-for-trade according to OIML R60 to 000d, connection cable 6 m (19.69 ft) Click on the Article No. for the online configuration in the PIA Life Cycle Portal. Rated load 6 kg (1.2 lb) 12 kg (26.45 lb) 0 kg (66.14 lb) 60kg(12.28lb) Dimensional drawings 50 (1.97) 20 (0.79) 24 (0.95) 1.5 (0.5) A Rated load [kg (lb)] A [mm (inch)] 2,5 (1.28) 10 (5.12) 107.5 (4.2) Central load axis 22.5 (0.89) 97.5 (.84) 116.5 (4.59) 25 (0.98) 1 (0.51) 1 (0.51) Article No. 7MH5117- D 0 0 1 Q 2 B 2 K 2 Q M6 depth 8 (0.1) (10x) 6 (1.2) 12 (26.46) 0 (66.14) 60 (12.28) 18.5 (0.7) 18.5 (0.7) 18.5 (0.7) 2.5 (0.9) SIWAREX WL260 SP-S SB, dimensions in mm (inch) Siemens WT 10 2016 /1
SIWAREX WL260 SP-S SC Load cell Overview The platform load cell SIWAREX WL260 SP-S SC is excellently suited for use in platform scales with dimensions up to and including 800 x 800 mm (1.50 x 1.50 inches). It is approved for use in Class III commercial scales with maximum divisions of n max to 4 000d. An C4 MR variant with a Y = 40 000 is available for high-precision applications. The use of stainless steel and the IP68/IP69K high degree protection make the SIWAREX WL260 SP-S SC highly suitable for use in the food, beverages and tobacco industries or pharmaceutical industry. Design The measuring element is made of stainless steel, hermetically sealed and has a calibrated output current. Technical specifications 1) 2) SIWAREX WL260 SP-S SC Possible applications Platform scales Small conveyor scales Type Platform load cell Loads Rated load E max. 10kg(22.05lb) 20kg(44.09lb) 50 kg (110.2 lb) 100 kg (220.46 lb) 200 kg (440.92 lb) 00 kg (661.9 lb) 400 kg (881.85 lb) 500 kg (1 102.1 lb) Min. initial loading E min 0%E max Max. working load L u 150 % E max Break load L d 00 % E max Max. lateral load L lq 100 % E max Measurement characteristic values Rated measuring path s nom at 10kg(22.05lb) 0.0 mm (0.001 inch) 20kg(44.09lb) 0.08 mm (0.00 inch) 50 kg (110.2 lb) 0.15 mm (0.006 inch) 100 kg (220.46 lb) 0.12 mm (0.005 inch) 200 kg (440.92 lb) 0.15 mm (0.006 inch) 00 kg (661.9 lb) 0.18 mm (0.007 inch) 400 kg (881.85 lb) 0.17 mm (0.007 inch) 500 kg (1 102.1 lb) 0.19 mm (0.008 inch) Rated characteristic value C n 2.0±0.2mV/V Tolerance D0 of zero signal <±2.0%C n Max. scale interval n lc 000 2) 1) Only with 10, 20 and 50 kg variants. 2) Valid for accuracy class C. SIWAREX WL260 SP-S SC Min. scale interval V min at E max = 10, 20, 50, 100, 200, 00, 400, 500 kg (22.05, 44.09, 110.2, 220.46, 440.92, 661.9, 881.85, 1 102.1 lb) C: E max /10 000 C MR: E max /20 000 E max = 10, 20, 50 kg (22.05, C4 MR: E max /40 000 44.09, 110.2 lb) Combined error F comb ±0.02%C n Deviation F v ±0.02%C n Creepage error F cr 0 min ± 0.025 % C n Temperature coefficient Zero signal T Ko 0.014 % C n /10 C Characteristic value T Kc 0.01 % C n /10 C Electrical characteristic values Recommended reference voltage DC 5 12 V U ref Input resistance R e at 10, 20, 50 kg (22.05, 44.09, 80 ±15 110.2 lb) 100, 200, 00, 400, 500 kg 50 ±.5 (220.46, 440.92, 661.9, 881.85, 1 102.1 lb) Output resistance R a 50 ±.5 Insulation resistance R is 5000M at 50 V DC Connections and ambient conditions Sensor material (DIN) Stainless steel Max. tightening torque of fixing screws at 10, 20, 50 kg (22.05, 44.09, 10 Nm 110.2 lb) 100, 200, 00, 400, 500 kg 20 Nm (220.46, 440.92, 661.9, 881.85, 1 102.1 lb) Rated temperature range B tn -10...+40 C(14...104 F) Operating temperature range B tu -5 +65 C (-1... +149 F) Storage temperature range B ts -5 +65 C (-1... +149 F) Degree of protection to IP68, IP69K DINEN60529; IEC60529 Connection cable Function Color EXC + (supply +) Red EXC (supply -) Black SIG + (measured signal +) Green SIG (measured signal -) White Sense + (sensor line +) Blue 1) Sense - (sensor line -) Yellow 1) Shield (not connected to housing) Transparent Certificates and approvals Accuracy class according to C OIML R60 /14 Siemens WT 10 2016
SIWAREX WL260 SP-S SC Load cell Selection and ordering data Article No. Dimensional drawings Load cell type WL260 SP-S SC 7MH5118 - Legal-for-trade according to OIML R60 to 000d, 0 connection cable m (9.84 ft) Click on the Article No. for the online configuration in the PIA Life Cycle Portal. Rated load 10 kg (22.05 lb) 2 A D 0 20 kg (44.09 lb) 2 G D 0 50 kg (110.2 lb) 2 P D 0 100 kg (220.46 lb) A D 0 200 kg (440.92 lb) G D 0 00 kg (661.91 lb) K D 0 400 kg (881.85 lb) M D 0 500 kg (1 102.1 lb) P D 0 Options C MR D 5 Legal-for-trade according to OIML R60 to 000d and V min = E max /20 000 C4 MR E 5 Legal-for-trade according to OIML R60 to 4 000d and V min = E max /40 000; only for E max = 10, 20, 50 kg (22.05, 44.09, 110.2 lb) 40 (1.57) 19.1 (0.75) M6 x 0.5 25 (0.98) M6 depth 12 (0.47) (7x) 19 (0.75) 150 (5.91) 100 (.94) 75 (2.95) 19 (0.75) SIWAREX WL260 SP-S SC (10 50 kg (22.05 110.2 lb), dimensions in mm (inch) 6 (0.24) 4 (1.69) (2 x) 0 (1.81) 45 (1.77) 62 (2.44) 64 (2.51) 62 (2.44) 7 (0.28) (2x) 19 (0.75) (2x) 2 (1.26) M8 depth 22 (0.87) (8x) 174 (6.85) 18 (0.71) SIWAREX WL260 SP-S SC (100 500 kg (220.46 1 102.1 lb), dimensions in mm (inch) Siemens WT 10 2016 /15
SIWAREX WL250 ST-S SA Load cell Overview SIWAREX WL250 ST-S SA Measurement characteristic values Rated measuring path h n at E max E max = 50, 100 kg (110.2, 220.46 lb) E max = 250, 500 kg (551.16, 1 102.1 lb) 0.18 mm (0.01 inch) 0.24 mm (0.01 inch) The load cell is ideal for use in tank weighing, hybrid scales or suspended container weighing. It is made of stainless steel and therefore also suitable for use in harsh environments. The SIWAREX WL250 ST-S SA load cell is usable for pulling forces and pressure forces. The preferred measuring direction is pulling, i.e the load cell is calibrated ex factory for that direction. When employing the load cell to measure pressure the rated values and error limits stated in the technical specifications cannot be guaranteed. Design The measuring element is hermetically encapsulated and has a calibrated output current. Technical specifications SIWAREX WL250 ST-S SA Possible applications Type Loads Rated load E max. Min. initial loading E min Max. working load L u Break load L d Max. lateral load L lq Tension and pressure applications Suspended scales Container scales Hybrid scales S-Type 50kg(110.2lb) 100 kg (220.46 lb) 250 kg (551.16 lb) 500 kg (1 102.1 lb) 1 t (0.98 tn. L.) 2.5 t (2.46 tn. L) 5 t (4.92 tn. L) 10t(9.84tn.L) 0%E max 150 % E max 00 % E max 100 % E max E max = 1 t (0.98 tn. L.) 0.7 mm (0.01 inch) E max = 2.5, 5 t (2.46, 4.92 tn. L.) 0.8 mm (0.0 inch) E max = 10 t (9.84 tn. L.) 0.57 mm (0.02 inch) Rated characteristic value C n.0 ± 0.008 mv/v Tolerance D0 of zero signal <±1.0%C n Max. scale interval n Ic 000 Min. scale interval V min E max = 50, 100 kg E max /7 000 (110.2, 220.46 lb) E max = 0.25, 0.5, 1.2.5 t E max /10 000 (0.25, 0.49, 0.98, 2.46 tn. L.) E max = 5, 10 t (4.92, 9.84 tn. L.) E max /12 000 Combined error F comb ±0.02% C n Deviation F v ±0.02% C n Creepage error F cr 0min ±0.02%C n Temperature coefficient Zero signal T Ko 0.017 % C n /5 K Characteristic value T Kc 0.014 % C n /5 K Electrical characteristic values Recommended reference voltage DC 5 12 V U ref Input resistance R e 40 ±4 Output resistance R a 50 ±.5 Insulation resistance R is 5000M at 50 V DC Connection and ambient conditions Sensor material (DIN) Stainless steel Max. tightening torque of fixing screws E max =, 5, 10, 20, 50, 100 kg 14 Nm (6.61, 11.02, 22.05, 44.09, 110.2, 220.46 lb) E max = 200 kg (440.92 lb) 16 Nm Rated temperature range B tn -10... +40 C (14... 104 F) Operating temperature range B tu -5 +65 C (-1... +149 F) Storage temperature range B ts -5 +65 C (-1... +149 F) Degree of protection to IP67 DINEN60529; IEC60529 Connection cable Function Color EXC + (supply +) Red EXC (supply -) Black SIG + (measured signal +) Green SIG (measured signal -) White Shield Transparent Certificates and approvals Accuracy class according to C OIML R60 /16 Siemens WT 10 2016
SIWAREX WL250 ST-S SA Load cell Selection and ordering data Article No. Dimensional drawings Load cell type WL250 ST-S SA Legal-for-trade according to OIML R60 to 000d, connection cable 6 m (19.69 ft) Click on the Article No. for the online configuration in the PIA Life Cycle Portal. Rated load 50 kg (110.2 lb) 100 kg (220.46 lb) 250 kg (551.16 lb) 500 kg (1 102.1 lb) 1t(0.98tn.L.) 2.5 t (2.46 tn. L.) 5t(4.92tn.L.) 10 t (9.84 tn. L.) Explosion protection 7MH5105- D 0 2 P A H P 4 A 4 H 4 P 5 A Without 0 Explosion protection for zones 0, 1, 2, 20, 21, 22 1 Rated load [kg] 50 100 250 500 L M M 50.8 (2.00) 50.8 (2.00) 60.96 (2.40) 60.96 (2.40) 11.68 (0.46) 18.0 (0.71) H L H b B M 15.06 (0.59) 21.41 (0.84) M8 M12 B b Rated load [t] 1 2.5 5.0 10 L H b B M 50.8 (2.00) 76.2 (.00) 74.68 (2.94) 112.78 (4.44) 60.96 (2.40) 99.06 (.90) 99.06 (.90) 177.8 (7.00) 24.8 (0.96) 24.8 (0.96) 0.74 (1.21) 42.9 (1.69) 27.76 (1.09) 27.76 (1.09) 4.12 (1.4) 46.1 (1.82) M12 M20 x 1.5 M20 x 1.5 M0 x 2 Load cell SIWAREX WL 250 ST-S SA, dimensions in mm (inch) Siemens WT 10 2016 /17
SIWAREX WL20 BB-S SA Load cell Overview The SIWAREX WL20 BB-S SA bending beam load cell is particularly suitable for use in small-scale container and platform scales. Design The measuring element is a double bending beam made of stainless steel to which 4 strain gauges are applied. The strain gauges are arranged so that two are stretched and two are compressed. Under the influence of the load acting in the measuring direction, the spring bodies and therefore the friction-locked strain gauges are elastically deformed. This generates a measuring signal voltage that is proportional to the load. 1) 2) Technical specifications SIWAREX WL20 BB-S SA Possible applications Container scales Conveyor scales Platform scales Type Bending beam load cell Loads Rated load E max 10 kg (22.05 lb) 20 kg (44.09 lb) 50 kg (110.2 lb) 100 kg (220.46 lb) 200 kg (440.92 lb) 50 kg (771.62 lb) 500 kg (1 102. lb) SIWAREX WL20 BB-S SA Creepage error F cr 0min ±0.02%C n Temperature coefficient Zero signal T Ko ±0.017%C n /5 K Characteristic value T Kc ±0.014%C n /5 K Electrical characteristic values Recommended reference voltage DC 5... 10 V U ref Input resistance R e 460 ±50 Output resistance R a 50 ±.5 Insulation resistance R is 5000M at 50 V DC SC current calibration Standard Connections and ambient conditions Sensor material (DIN) Stainless steel Max. tightening torque of fixing screws E max = 10, 20, 50.100, 200 kg 2 Nm 2) (22.05, 44.09, 110.2, 220.46, 440.92 lb) E max = 50, 500 kg (771.62, 70 Nm 2) 1 102.1 lb) Connection cable Function Color EXC + (supply +) Green EXC - (supply -) Black SIG + (measured signal +) White SIG - (measured signal -) Red Shield Transparent Rated temperature range B tn -10... +40 C (14... 104 F) Operating temperature range B tu -5... +65 C (-1... +149 F) Storage temperature range B ts -5... +65 C (-1... +149 F) Degree of protection to IP68 DINEN60529; IEC60529 Certificates and approvals Accuracy class according to C OIML R60 Min. initial loading E min Max. working load L u Break load L d 0%E max 150 % E max 00 % E max Safe lateral load L Iq 100 % E max Measurement characteristic values Rated measuring path h n at E max 0. mm (0.01 inch) Rated characteristic value C n 2.0 ± 0.02 % mv/v Tolerance D O of zero signal <±1.0%C n Max. scale interval n LC 000 1) Min. scale interval V min E max /15 000 Minimum application range 20 % R min(lc) Combined error F comb Deviation F v 0.02 % C n 0.017 % C n 1) Higher accuracy class available on request. 2) The tightening torque is to be selected according to the strength class of the screw. /18 Siemens WT 10 2016
SIWAREX WL20 BB-S SA Load cell Selection and ordering data Article No. Dimensional drawings Load cell type WL20 BB-S SA Legal-for-trade according to OIML R60 to 000d, connection cable m (9.84 ft) Click on the Article No. for the online configuration in the PIA Life Cycle Portal. Rated load 10 kg (22.05 lb) 20 kg (44.09 lb) 50 kg (110.2 lb) 100 kg (220.46 lb) 200 kg (440.92 lb) 50 kg (771.62 lb) 500 kg (1 102.1 lb) Explosion protection 7MH5106- D 0 82 (.2) 2 A 2 G Ød 2 P A G L P 42 (1.65) 21 120 (4.72) (0.8) Without 0 Explosion protection for zones 0, 1, 2, 20, 21, 22 1 Rated load [kg] Ød ØD 10, 20, 50, 100, 200 8.2 (0.2) 2 (0.91) 20 (0.79) 18 (0.71) 10 (0.9) H ØD 9 (1.54) Ød H 20 (0.79) 50, 500 10. (0.41) 24 (0.95) 19 (0.75) Load cell SIWAREX WL20 BB-S SA, dimensions in mm (inch) Siemens WT 10 2016 /19
SIWAREX WL20 BB-S SA Base plate with overload protection Overview Dimensional drawings 0 (1.18) (59) (2.2) The base plate with integral overload protection for load cells of the SIWAREX WL20 BB-S SA series ensures easy, correct installation of the load cell. Design The integrated overload protection ensures that the load cell is not damaged by static overloading with vertical forces of up to 5kN. Ø8.5 (0.) (4x) 10 (0.9) 60 (2.6) 80 (.15) The load cells can be installed on the base plate and aligned even before final installation of the scales. This ensures that the permissible spring excursion of the load cell is precisely set, up to contact with the overload protection. The load cell is not included in the scope of delivery of the base plate with overload protection. 10 (0.9) 100 (.94) 120 (4.72) 1) 2) Selection and ordering data Article Base plate with overload protection For load cells of series SIWAREX WL20 BB-S SA Material: Stainless steel For load cells with a rated load of 1)2) 10... 200 kg (22.05... 440.92 lb) 50 kg (771.62 lb), 500 kg (1 102.1 lb) No. 7MH41-DG11 7MH41-KG11 Elastomer bearing and base plate with overload protection for load cells SIWAREX WL20 BB-S SA, 10... 200 kg (22.05 440.92 lb), dimensions in mm (inch) 1) The load cell is not included in the scope of delivery. 2) It is highly recommendable to use a grounding cable (7MH701-1AA1) in order to protect the load cell. /20 Siemens WT 10 2016
SIWAREX WL20 BB-S SA Elastomer bearing Overview Dimensional drawings Ø50 (1.97) M10 0 (1.18) 10 (0.9) 100 (.94) 0 (1.18) 59 (2.2) The self-centering elastomer bearing for load cells of the SIWAREX WL20 BB-S SA series is the ideal load introduction element for scales without guide elements. It serves to damp vibrations and shocks. Ø8.5 (.5) (4x) 10 (0.9) Design Elastomer bearings are rubber-metal composites made of neoprene and stainless steel. They ensure large spring excursions (i.e. a high degree of damping) despite small dimensions. If the load support is displaced by more than 4 mm (0.16 in.) in the horizontal direction, measures for restricting sideways play (e.g. stops) must be provided in the construction of the load bearing implement. In combination with the base plate and integral overload protection, it is ensured that the load cell is not damaged by static overloading with vertical forces of up to 5 kn. The load cell and the base plate are not included in the scope of delivery of the elastomer bearing. 10 (0.9) 100 (.94) 120 (4.72) Elastomer bearings for load cells SIWAREX WL20 BB S SA, 10 kg 200 kg (22.05 440.92 lb), dimensions in mm (inch) 60 (2.6) 80 (.15) 1) 2) Selection and ordering data Article Elastomer bearing For load cells of series SIWAREX WL20 BB-S SA Material: Stainless steel For load cells with a rated load of 1)2) 10... 50 kg (22.05... 110.2 lb) 100... 200 kg (220.46... 440.92 lb) 500 kg (1 102.1 lb) No. 7MH41-2KE11 7MH41-DE11 On request 1) The load cell is not included in the scope of delivery. 2) It is highly recommendable to use a grounding cable (7MH701-1AA1) in order to protect the load cell. Siemens WT 10 2016 /21
SIWAREX WL20 BB-S SA Compact mounting unit Overview 1) 2) Selection and ordering data Article No. Compact mounting unit For load cells of series SIWAREX WL20 BB-S SA Material: Stainless steel For load cells with a rated load of 1)2) 10... 200 kg (22.05... 440.92 lb) 7MH41-DC11 Dimensional drawings 75 (2.95) The self-aligning compact mounting unit for SIWAREX WL20 BB-S SA load cells is particularly suitable for implementation in small-scale container, platform and roller table scales. Design The compact mounting unit comprises a base plate and a top plate, a self-aligning bolt, two countersunk screws and overload protection. The top plate is aligned and fixed above the base plate with the two countersunk screws. This results in a stable unit. The height of the top plate can be adjusted so that it is two millimeters above the installation height with load cell. In this state the compact mounting unit serves as an installation aid and can be used as a dummy for light installation jobs. Prior to installation, the load cell is inserted with the self-aligning bolt into the compact mounting unit. Then the complete unit is installed in the scales. As the result, the load bearing implement and the mounting units are aligned. The load cells are not yet loaded. Finally the load bearing implement is lowered by undoing two hex nuts under the top plate. The weight now rests on the load cells. In this state the load cell and the pressure pieces together form a self-centering unit. The compact mounting unit permits sideways displacement of the top plate, and hence of the load bearing implement, by up to 1.5 mm (0.06 in.). The overload protection is set so that the load cell cannot be loaded beyond the limit load. Technical specifications Compact mounting unit for load cells SIWAREX WL20 BB-S SA Rated load 10... 200 kg (22.01... 440.92 lb) Permissible lateral deflection Lifting path of the top plate 50, 500 kg (771.62, 1 102.1 lb) ± 2 mm (0.08 inch) ± 2.5 mm (0.10 inch) 2... 2.5 mm (0.08... 0.10 inch) Max. lateral force 1.7 kn 2.5 kn Max. lifting force 2.5 kn 2.5 kn....5 mm (0.12... 0.14 inch) 80 (.15) 12 (0.47) 12 (0.47) 90 (.54) 60 (2.6) 17.5 (0.69) Ø9 (0.5) (6x) 100 (.94) 10 (5.12) Compact mounting unit for load cells SIWAREX WL20 BB-S SA, dimensions in mm (inch) 48 (1.89) 1) The load cell is not included in the scope of delivery. 2) It is highly recommendable to use a grounding cable (7MH701-1AA1) in order to protect the load cell. /22 Siemens WT 10 2016
SIWAREX WL20 SB-S SA Load cell Overview SIWAREX WL20 SB-S SA Minimum application range R min(lc) E max = 0.5 t (0.49 tn. L.) 0 % E max = 1, 2, 5 t (0.98, 1.97, 20 % 4.92 tn. L.) Combined error F comb Deviation F v ±0.02%C n ±0.02%C n The shear beam load cell is particularly suitable for implementation in container, overhead rail conveyor and platform scales. Design The measuring element is a shear tension spring made of stainless steel to which strain gauges are applied. The strain gauges are arranged at 45 to the longitudinal axis on the side of the spring body and are therefore subject to shear forces. Under the influence of the load acting in the measuring direction, the spring bodies and therefore the friction-locked strain gauges are elastically deformed. This generates a measuring signal voltage that is proportional to the load. 1) 2) Technical specifications SIWAREX WL20 SB-S SA Possible applications Container scales Conveyor scales Overhead rail scales Platform scales Type Shear beam load cell Loads Rated load E max 0.5 t (0.49 tn. L.) 1t(0.98tn.L.) 2t(1.97tn.L.) 5t(4.92tn.L.) Min. initial loading E min 0%E max Max. working load L u 150 % E max Break load L d 00 % E max Max. lateral load L Iq 100 % E max Measurement characteristic values Rated measuring path h n at E max E max = 0.5 t (0.49 tn. L.) 0.1 mm (0.005 inch) E max = 1 t (0.98 tn. L.) 0.21 mm (0.008 inch) E max = 2 t (1.97 tn. L.) 0.29 mm (0.011 inch) E max = 5 t (4.92 tn. L.) 0.8 mm (0.014 inch) Rated characteristic value C n 2.0±0.02%mV/V Tolerance D O of zero signal ±1.0%C n Max. scale interval n LC 000 Min. scale interval V min E max = 0.5 t (0.49 tn. L.) E max /10 000 E max = 1, 2, 5 t (0.98, 1.97, E max /15 000 4.92 tn. L.) 1) Creepage error F cr 0min ±0.02%C n Temperature coefficient Zero signal T Ko ±0.02%C n /5 K Characteristic value T Kc ±0.017%C n /5 K Electrical characteristic values Recommended reference voltage DC 5... 12 V U ref Input resistance R e 1000 ±10 Output resistance R a 1004 ±5 Insulation resistance R is 5000M at 50 V DC Connections and ambient conditions Sensor material (DIN) Stainless steel Max. tightening torque of fixing screws E max = 0.5, 1, 2 t 150 Nm 2) E max = 5 t 550 Nm 2) Rated temperature range B tn -10... +40 C (14... 104 F) Operating temperature range B tu -5... +65 C (-1... +149 F) Storage temperature range B ts -5... +65 C (-1... +149 F) Degree of protection to IP68 DINEN60529; IEC60529 Connection Function Color EXC + (supply +) Green EXC - (supply -) Black SIG + (measured signal +) White SIG - (measured signal -) Red Shield Transparent Certificates and approvals Accuracy class according to C 1) OIML R60 1) OIML type approval for SIWAREX WL20 SB-S SA 5 t available soon. 2) The tightening torque is to be selected according to the strength class. Siemens WT 10 2016 /2
SIWAREX WL20 SB-S SA Load cell Selection and ordering data Article No. Dimensional drawings Load cell type WL20 SB-S SA Legal-for-trade according to OIML R60 to 000d, connection cable m (9.84 ft) at 500 kg (1 102.1 lb) to 1t (0.98tn.L.), connection cable 6 m (19.68 ft) at 2 t (1.97 tn. L.) to 5t (4.92tn.L.) 7MH5107- D 0 2.8 (0.11) ØG Ø.2 (0.1) H Click on the Article No. for the online configuration in the PIA Life Cycle Portal. K J Rated load 500 kg (1 102.1 lb) 1t(0.98tn.L.) 2t(1.97tn.L.) P 4 A 4 G ØF L A M 5t(4.92tn.L.) 4 P Explosion protection Without 0 E Explosion protection for zones 0, 1, 2, 20, 21, 22 1 B C D Rated load [t] A B C D E ØF 0.5 1 2 5 10 (5.12) 10 (5.12) 10 (5.12) 172 (6.77) 16 (0.6) 16 (0.6) 16 (0.6) 19 (0.6) 25.4 (1.00) 25.4 (1.00) 25.4 (1.00) 8.1 (1.50) 76 (2.99) 76 (2.99) 76 (2.99) 95 (.74) 2 (1.26) 2 (1.26) 2 (1.26) 8 (1.50) 1 (0.51) 1 (0.51) 1 (0.51) 20.5 (0.81) Rated load [t] ØG H J K L M 0.5 1 2 5 20.5 (0.81) 20.5 (0.81) 20.5 (0.81) 0.2 (1.89) 14 (0.55) 14 (0.55) 14 (0.55) 20 (0.79) 26 (1.02) 28 (1.10) 2 (1.26) 40 (1.57) 2 (1.26) 2 (1.26) 6 (1.42) 44 (1.7) 57 (2.24) 57 (2.24) 57 (2.24) 76 (2.99) M12 M12 M12 M20 Load cell SIWAREX WL20 SB-S SA, dimensions in mm (inch) /24 Siemens WT 10 2016
I Siemens AG 2016 SIWAREX WL20 SB-S SA Compact mounting unit Overview 1) 2) Selection and ordering data Article Compact mounting unit For load cells of series SIWAREX WL20 SB-S SA Material: Stainless steel For load cells with a rated load of: 1)2) Click on the Article No. for the online configuration in the PIA Life Cycle Portal. 500 kg (1 102.1 lb), 1 t (0.98 tn. L.) 2 t (1.97 tn. L.) 5 t (4.92 tn. L.) No. 7MH5707-4 A 0 0 A G P Dimensional drawings The self-aligning compact mounting unit for SIWAREX WL20 SB-S SA load cells is particularly suitable for implementation in container, platform and roller table scales Design The compact mounting unit comprises a base plate and a top plate, a self-aligning bolt and two countersunk screws. The top plate is aligned and fixed above the base plate with the two countersunk screws. This results in a stable unit. The height of the top plate is adjusted so that it is three millimeters above the installation height with load cell. In this state the compact mounting unit serves as an installation aid and can be used as a dummy for light installation jobs. ØG (6x) A F B E C D Prior to installation, the load cell is inserted with the self-aligning bolt into the compact mounting unit. Then the complete unit is installed in the scales. As the result, the load bearing implement and the mounting units are aligned. The load cells are not yet loaded. Finally the load bearing implement is lowered by undoing two hex nuts under the top plate. The weight now rests on the load cells. H J In this state the load cell and the pressure pieces together form a self-centering unit. The compact mounting unit permits sideways displacement of the top plate, and hence of the load bearing implement, by up to three millimeters. Technical specifications K M L Compact mounting unit for load cells of type SIWAREX WL20 SB-S SA Rated load 0.5, 1, 2 t (0.49, 0.98, 5 t (4.92 tn. L) 1.97 tn. L) Maximum lateral deflection with load cell ± mm (0.12 inch) ± mm (0.12 inch) Rated load [t] 0,5... 2 5 A 80 (.15) 105 (4.1) B 22.4 (0.88) 1.6 (1.24) C 15 (0.59) 20 (0.79) D 76 (2.99) 108 (4.25) E 15 (0.59) 25 (0.98) F 60 (2.6) 80 (.15) Lifting path of top plate mm (0.12 inch) mm (0.12 inch) Return force per mm lateral 1 %/mm 10 %/mm deflection of top plate, in percent of load applied to load cell Permissible support load with anchored top plate 25 kn 5 kn Rated load [t] 0,5... 2 5 ØG 11 (4.) 1.5 (0.5) H 120 (4.72) 150 (5.91) I 80 (.14) 100 (.94) J 90 (.54) 110 (4.) K 110 (4.) 145 (5.71) L 15 (0.59) 20 (0.79) M s 140 (5.51) (0.12) 185 (7.28) (0.12) G_WT01_XX_10092 Permissible lifting force at top plate Permissible lateral force at top plate when top plate is anchored 25 kn 50 kn kn 5 kn Compact mounting unit for load cells SIWAREX WL20 SB-S SA, dimensions in mm (inch) 1) The load cell is not included in the scope of delivery. 2) It is highly recommendable to use a grounding cable (7MH701-1AA1) in order to protect the load cell. Siemens WT 10 2016 /25