Testomat AW101 Water Hardness Monitor. A unique water hardness monitoring system with superior performance

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1 Data sheet DS/AW00 EN Rev. D Testomat AW0 Water Hardness Monitor A unique water hardness monitoring system with superior performance Automatic on-line monitoring of residual/total water hardness ideal for water softening and potable water plants Menu-driven, programmable functions with clear LCD text display simple operation Programmable hardness units dh, f, ppm CaCO3 and mmol l Configurable initiation of analysis automatic intervals (programmable 0 to 99 minutes) from external flow signal (turbine meter) external stop/start Remote diagnostic alarm dirty measuring chamber low reagent level 500ml ( pint) reagent storage bottle extended operation period Analog output 0 to 0mA and 4 to 0mA enables the use of process recorders for data recording Two fully adjustable limit contacts enables separate ranges of hardness levels to be monitored

2 Testomat AW00 DS/AW00 EN Rev. D General The AW00 has been developed as a simple device to monitor the quality of water from softeners. Applications include laundries, utility boiler plants, soft drinks factories, brewing, food processing and potable water plants. It provides an alarm for high hardness that starts an automatic regeneration of the ion exchange beds used most commonly in these applications. The AW00 uses one of four reagents that changes from green to red at a predetermined water hardness level. The reagent is added to a known volume of sample via a small pump until a color change takes place. The volume of reagent required to bring about this reaction (monitored photo-electrically) indicates the level of hardness of the water sample. The AW00 also provides an analog signal, the range of which is determined by the choice of one of the four reagents available. The digital display on the front of the monitor and the analog output show the value of the last analysis cycle. Secure Operation Without Supervision Low-level Reagent Alarm In certain steam boiler installations, the possibility of an unsupervised boiler operating with a depleted supply of reagent would have safety implications; allowing untested sample to flow through the boiler system. To overcome this problem, the AW0 employs a programmable low-level reagent alarm operation function. This monitors the reagent constantly and an alarm is triggered if the available reagent quantity falls below the quantity required for 7 hours usage. STOP Function The active analysis cycle can be interrupted by pressing the STOP/Standby key on the display pad. The cycle can be interrupted remotely/automatically using the STOP relay. Three alarm outputs are provided two concentration alarms for control purposes and one alarm to drive an audible signal device. There are also inputs for a flow device and suspension of the flow cycle. Mode of Operation Analysis Cycle Pause Flush Fill chamber Drain chamber Fill chamber Analysis Drain chamber Pause The flow cell is thouroughly flushed to ensure that an uncontaminated sample is analysed. This flush time is programmable to suit the process sample and conditions. The measuring chamber is filled with a known sample volume. 3 The sample is checked optically to ensure it is clean. 4 A quantity of reagent is titrated and the end-point (color change) is reached. 5 The result is evaluated and displayed. If the hardness value is outside the range determined by the reagent used, an alarm state is triggered. 3, 4 & 5 are known as the analysis period. 6 The chamber is drained. 7 There is a pause period (programmable) until the next analysis cycle is started.

3 Testomat AW00 DS/AW00 EN Rev. D Reagents Available for AW0 Parameter/Type of Reagent Units Water Hardness AW090 Water Hardness AW090 Water Hardness AW0903 Water Hardness AW0904 dh German (0mg/CaO per 000ml Water) 0.05 to 0.5 (0.) 0.5 to.5 (0.05).0 to 0.0 (0.).5 to 5.0 (0.) Range f French (0mg/ CaCO3 per 000ml Water) ppm CaCO3 North America and UK (mg CaCO3 per 000 ml Water) 0.09 to 0.89 (0.0) 0.89 to 8.93 (0.) 0.45 to 4.48 (0.) 4.47 to 44.7 (0.9).79 to 7.9 (0.4) 7.9 to 79 (3.8) 4.48 to 44.8 (0.4) 44.7 to 447 (3.8) mmol/l Internationally recommended units (00mg CaCO3 per 000ml Water) 0.0 to 0.09 (0.0) 0.04 to 0.45 (0.0) 0.8 to.79 (0.04) (0.04) Note. Figures in brackets show measurement resolution Display 3 4 0, o dh ^ :0,30 ^ :0,40 ANALYSE testomat ECO ENTER STANDBY M I 0 Status of Limit Value Displays Displays the status of the limit values LV and LV. Text Display Displays the current analysis, all important status results and programming data in a -line LCD. 3 Alarm Displays a function fault. 4 Power Switch The On/Off switch is located on the right-hand side panel. 5 Unit Fuse (inside the unit) Protects outputs against overload and short circuit. 7 Programming Keys (Cursorblock with ENTER) These keys are used to enter all values and programming data. Function Keys 8 'Manual' manual start of an analysis. 9 'STANDBY' manual analysis stop/standby. 0 'Alarm' cancels alarm message. I-Key Access all unit information. M-key Access the programming menu. 6 Analysis Message Displays currrent analysis. 3

4 Testomat AW00 DS/AW00 EN Rev. D Analog Output Another possibility for monitoring the analysis is the connection to a process recorder or supervisory system. For this purpose the unit is equipped with a programmable current output. Output values of 0 to 0mA and 4 to 0mA can be selected for retransmission of the measured value. Example ma CaCO Reagent AW0903, 0 to 0mA Typical Recorder Output Specification Display Ranges Determined by reagent (see table on page 3) Alarms Three relay outputs limit values (LV, LV) and one fault alarm Resistive load 4A Alarm displays The following faults are shown on the display and also activate the Alarm output: Low water pressure Function fault optics Measuring fault analysis Function fault dosing pump Function fault outlet to drain Reagent low level Measuring fault dirtiness Measuring fault turbine meter Measuring range exceeded Front panel indicators Programme in operation Analysis stopped Lack of reagent Satisfactory result Unsatisfactory result Viewing window Outputs Current output 0 to 0mA or 4 to 0mA Max. load 500Ω EMC Conformity EN5008-, EN5008-, EN600- Power Supply Voltage 5V, 30V or 4V AC ±0%, 50/60 Hz Power consumption 30VA Unit Protection 5V, 30V: T 0.A 4V:T.0A Environmental Data Sample Pressure 0. to 3 bar (.5 to 45.5 psi) Sample Temperature 0 to 40 C (4 to 04 F) max. Ambient Temperature 0 to 45 C (4 to 4 F) Mechanical Data Ingress Protection IP65 Dimensions 380 x 459 x 80 mm (5 x 8.8 x in.) Weight 9 kg (9.8 lbs) Consumables Reagent consumption 0.07ml ( pint) per test 4

5 Testomat AW00 DS/AW00 EN Rev. D Overall Dimensions Dimensions in mm (in.) 380 (4.96) 80 (.0) 66 (0,47) 459 (8.07) 44 (6.7) Typical Installation Diagram PLC Control Unit LV LV Fault Alarm 0 to 0mA 4 to 0mA Flow Meter F Raw Water Inlet Soft Water Outlet Testomat AW0 Softener Brine Tank Monitor Drain Treated Only Drain 5

6 Testomat AW00 DS/AW00 EN Rev. D Terminal Block Identification No. Terminal PE 3 to 5 6 to L N n l LV LV Alarm Stop + Type Function I N Mains Protective earth (5x) Mains, L = Live Mains, N = Neutral Neutral, switched (8x) Live, switched (8x) Limit value output Normally closed Limit value output Common Limit value output Normally open Limit value output Normally closed Limit value output Common Limit value output Normally open Fault message Normally closed Fault message Common Fault message Normally open External analysis stop Common earth for inputs Water meter input Common earth for inputs 0 or 4 to 0mA 4 + O UT +V for Hall-Sensor (turbine) Note Earth/Ground Mains input 5V, 30V or 4V AC Mains voltage, max. 4A Volt-free relay output, max. load 40V AC, 4A Volt-free relay output, max. load 40V AC, 4A Volt-free relay output, max. load 40V AC, 4A Only for volt-free normally open/normally closed contact Only for volt-free normally open/normally Note technical data of turbine Current output + (0 or 4 to 0mA) 3 closed contact Note technical data of turbine Max. power input of sensor must not exceed 0mA Terminal block for inputs Stop, and output Terminal block for mains connection and relay outputs Stop n n n l l l PE PE PE L N K K K3 Terminal Block Labels 6

7 Testomat AW00 DS/AW00 EN Rev. D Ordering Information T estomat Water Hardness Monitor AW0/ X X X Version AW0 Water hardness Mains Supply 5V AC 50/60Hz 30V AC 50/60Hz 4V AC 50/60Hz 3 Menu Language English German French 3 Spares Pressure Regulator AW060 Regulator/filter housing AW060 Regulator plug T000, kpl AW0603 Flow regulator valve AW0604 Retaining pin for regulator plug AW0605 Inlet filter AW0606 Spring for inlet filter AW0607 Inlet connector AW0608 Plug-in connector Measuring Chamber AW06 Sight-glass window 30 x 3 with seal AW06 Sight-glass window 30 x 3 AW063 Sight-glass retaining disc AW064 Screw spindle M3 x 40 AW065 Latch fastener TL AW066 Plastic plug AW067 Measuring chamber T000 Holding block for measuring chamber AW06 Magnetic stirrer AW063 Plug-in connector G 3 /8 in. AW064 Solenoid valve / way AW065 Rear guide bar for measuring chamber Dosing Pump DOSIClip AW063 Jet pump complete AW063 Suction capillary AW0633 Pressure capillary complete AW0634 Base circuit board T complete AW0635 Magnet (4V DC) Bottle connection/suction tube AW064 Screwed cap with bottle insert T000 AW064 Screwed cap GL3 only AW0643 Bottle insert for screwed cap with push fit suction Electrical Components AW065 Fuse M4A AW0656 Cable sleeve 7 0 AW0657 Mains on/off switch AW0658 Cover for Mains on/off switch AW0659 Multi-pin strap cable 0 pole With EMI filter clamp AW0660 Multi-pin strap cable 6 pole With EMI filter clamp AW066 Cable loom V complete (for valves) AW0663 Cable loom for Mains on/off switch complete AW0664 Fuse T0.6A AW0665 Fuse T.0A Spare Parts for -3 years operation AW06 x Sight-glass window 30 x 3 with seal AW0605 x Inlet filter (optional) AW070 Gasket set T000 Number required subject to maintenance regime (see manual) AW0664 x fuse T0.6A AW0665 x fuse T.0A Reagents AW090 TH005 Water Hardness 0.89 to 8.93 ppm CaCO3 AW090 TH05 Water Hardness 4.47 to 44.7 ppm CaCO3 AW0903 TH00 Water Hardness 7.9 to 79 ppm CaCO3 AW0904 TH50 Water Hardness 44.7 to 447 ppm CaCO3 7

8 Contact us ABB Limited Process Automation Oldends Lane Stonehouse Gloucestershire GL0 3TA UK Tel: Fax: ABB Inc. Process Automation 5 E. County Line Road Warminster PA 8974 USA Tel: Fax: Note We reserve the right to make technical changes or modify the contents of this document without prior notice. With regard to purchase orders, the agreed particulars shall prevail. ABB does not accept any responsibility whatsoever for potential errors or possible lack of information in this document. We reserve all rights in this document and in the subject matter and illustrations contained therein. Any reproduction, disclosure to third parties or utilization of its contents in whole or in parts is forbidden without prior written consent of ABB. Copyright 00 ABB All rights reserved 3KXA8750R00 DS/AW00 EN Rev. D.00