AG ELECTRONICS Microprocessor Scale System OPERATOR'S MANUAL

Transcription

1 EATON Model 625 AG ELECTRONICS Microprocessor Scale System OPERATOR'S MANUAL DO NOT operate this scale system without reading and understanding this manual DO NOT weld on the equipment with the scale system connected. Disconnect the power cord from the indicator before welding DO NOT damage the load sensor cables. It is extremely important to protect these cables from nicks, cuts, abrasions, heat, sharp bends, etc... Any break in the cable insulation can result in system failure.

2 PAGE 1 Table of Contents PAGE System Description 2 Principle of Operation 2 Specifications 2 Front Panel Controls 3 Bottom View of Indicator 4 Terminal Strip Circuit Board 5 Installation and Initial Hook-up Procedure... For Bars & Axles 6...For Load Cells 9 System Operation...Batching Mode 12...Accumulator Mode 14 Optional Equipment...Model 25 Remote Display 15...A. C. Power Supply 16...Optional Power Cord 16...Model 25R Remote Display (Radio Controlled 17...Radio Control Kit 18...Radio control Programming 19...Transmitter Battery Replacement 20 Trouble Shooting Guide 21...Display Messages 22...System Test...For System 23...For %System 24...Cable Splicing Procedure 25 Dip Switch Settings 27

3 PAGE 2 System Description The Model 625 Scale system is a completely solid state, digital electronic system. The heart of the system is a microprocessor (minicomputer) which is the latest in electronic technology. The system utilises strain gauge transducers such as load cells, axle stubs, hitch bars or scale bars. The system can be used with from 1 to 4 transducers. LOAD SENSORS (Transducers) The complete system is designed and built for rugged applications on grinder mixers, blender wagons, feed trucks, platform scales and livestock scales. Principle of Operation When weight is added to the system the load sensors will bend, causing a change in their electrical output. This electrical output is amplified and then calibrated into pounds or kilograms. This calibrated signal is fed to the seven segment liquid crystal (LCD.) on the front panel of the indicator. Specifications Operating Temperature -20 to +120 degrees F. Storage Temperature -50 to +180 degrees F. Input Voltage Current Draw 10.5 to 28 Volts DC 150M.A.Maximum Display Type & Size 5 Digit - Liquid Crystal - 3/4" Display Illumination Coarse Balance Adjustment Push button Zero Range Accuracy Weight Electro-luminescent Panel +/- 75% of Full Scale +/- Full Scale +/-1% or.1% Depending on Sensors Used 6 pounds Dimensions (H x W x D) 9;6" x 8" x 4.5"

4 PAGE 3 Front Panel Controls (A) LIQUID CRYSTAL DISPLAY (L.C.D.) - 5 digit, seven segment display for indicating weight in pounds or kilograms. (B) TOTAL LOAD SWITCH NOTE: The indicator has been preset at the factory for one of the following 2 modes of operation. 1. Batching Mode - When this switch is depressed the total load on the system at that time will be displayed. This mode is indicated by an L being displayed on the far left side of the L.C.D. The total load will be displayed continuously until the switch is depressed again, then the indicator will display the net weight. 2. Accumulator Mode - When this switch is depressed the indicator will automatically add the weight currently displayed into memory and then will display total accumulated weight for a short period of time. After this time it will return to the actual weight presently on the system. (C) ZERO SWITCH - When activated this switch will zero any weight shown on the display, up to full scale. (D) POWER ON SWITCH - When depressed this switch will turn the indicator on. (E) POWER OFF SWITCH - When depressed this switch will turn the indicator off. This switch must be held for approximately 1.5 seconds or the indicator will turn on again. This switch can be bypassed so the indicator cannot be turned off. Consult your dealer for details. (F) LIGHTS ON/OFF SWITCH - When activated the first time the L.C.D. will be illuminated. Press the switch a second time and the display light will be turned off. When the optional remote display is used, this switch will also control the light on the remote display.

5 PAGE 4 Bottom View of Indicator (G) PRINTER/COMPUTER OUTPUT - RS-232 information is supplied to run a printer or computer. (H) REMOTE DISPLAY/PRINTER CONNECTOR - Nine pin connector used for connection of optional Remote Display. This connector will also be used to connect a Printer option. (I) COMPRESSION CONNECTOR (POWER) - For 12 Volts DC power cord input and strain relief. (J) COMPRESSION CONNECTORS (LOAD SENSORS) - For load sensors cable input and strain relief.

6 PAGE 5 Terminal Strip Circuit Board Located Inside Indicator Housing at Rear (K) TEST SWITCH - 3 position rotary switch, used for testing the indicator, 1% bars and axles. (L) POWER TERMINALS - This section of terminal strip 2 (TS-2) is used to connect the 3 conductor power cord to the indicator. (M) TEST CONNECTORS - These spring loaded clips are used to connect the individual wires from 1% transducers to the test circuit. (O) COARSE & FINE BALANCE CONTROLS - These controls compensate for tare weight on the scale system. They are 3/4 turn controls. Care must be taken not to turn past the mechanical stops shown on the P.C. Board. (P) FUSE - This 1 amp (AGC) fuse protects the indicator from damage by high current. The 10 amp fuse is not used on Model 625. (Q) BAR TERMINAL STRIP (TS-1) - This terminal strip is used to connect 1% transducers (bars, axles or dummy plug) to the indicator. (R) BAR TERMINAL STRIP (TS-2) - This terminal strip is also used to connect 1% transducers, the same as (Q) above. (S) LOAD CELL TERMINAL STRIP (TS-3) - This terminal strip is used to connect 0.1% load cells to the indicator.

7 PAGE 6 Installation and Initial Hook Up Procedure Scale & Hitch Bars From 1 " Diameter Lbs Capacity To 2'/2" Diameter - 20,000 Lbs Capacity AXLES From:- 1 7/8" Diameter - 6,000 Lbs Capacity To:- 2 7/8" Diameter - 20,000 Lbs Capacity 1. Mount bars or axles on equipment in accordance with equipment manufacturers recommendations. 2. Make sure all sensor cables are securely fastened to the equipment with cable clamps or tie wraps. Also make sure that the cables are not close to any moving parts. 3. Mount the indicator to the equipment securely, in a position that affords a good viewing angle while operating the equipment. - Ensure there is a good electrical ground between the indicator and the equipment. If the indicator is mounted on a non-metallic surface, a ground wire (20 gauge minimum) should be run from the indicator to all of the load sensors. Failure to properly ground the system can result in unstable weight readings on the indicator. 4. Loosen the two captive screws located at the top of the front cover on the indicator. Once these screws are loosened, the front cover can be opened, exposing the Terminal Strip Circuit Board, located inside the indicator housing at the rear. 5. Each bar or axle has a cable with 4 individual wires.

8 page 7 6. Insert first cable through compression connector # 1 in Figure 5. Route this cable to bar # 1 section of TS-2 (see Figure 6). 7. Insert bare section of each wire under the flat clamping plate of each terminal and tighten screws securely. Be sure to observe colour code. Leave the green wire loose until bar #2 is connected. Bar #1 & Bar #2 share one green terminal. 8. Insert second cable through compression connector #2 in Figure 5. Route this cable to bar #2 section of TS-2 (see Figure 6). Wire individual wires as in step #7 above. Don't forget to place the green wire from bar #1 & bar #2 under the same green terminal and tighten securely. 9. Insert the third cable through compression connector #3 and route to bar #3 section of TS- 1. Follow procedure in step #7 for connecting the wires. 10. Insert 4th cable through compression connector #4 and route to bar #4 section of TS-1. Follow step #7 for connection. 11. Once all bars have been connected, dress cables leaving some slack for strain relief. Tighten all four compression connectors until all cables are secure. 12. When the scale is used in a 3-point installation a dummy plug is required (see Figure 7). All four bar sections of the terminal strips must be connected to satisfy the electrical bridge circuit. 13. When a dummy plug is used, remove compression connector #3 in Figure 5. Replace this connector with the dummy plug. Wire the dummy plug just as you did the bars.

9 PAGE The power cord has three wires (white, green & black). Insert the power cord through the small compression connector (I) of Figure 2 on page 4. Connect the power cord to terminal strip #2 (TS-2), see (L) of Figure 3 on page 5. Observe the colour code and be sure to tighten all screws securely. Dress cable with some slack and tighten compression connector until the power cord is secure. 15. Connect the other end of the power cord to a power source of 12 to 28 volts DC This power source can be a battery, vehicle electrical system or A.C. power supply with 12 to 28 volt D.C. output. WARNING - The black wire must be connected to the negative (-) or ground. The green & white wires must be connected to positive (+). If proper polarity is not observed the indicator will not turn on. 16. Turn the indicator on by pressing the Power On switch located on the front panel (see (D) of Fig. 1 on page 3). 17. Make sure the test switch (see (K) of Figure 3 on page 5) is in the norm (normal) position. 18. Adjust the Coarse Balance Control located on the terminal strip circuit board (see (0) of Figure 3 on page 5). Loosen the lock nut and adjust for a reading within several hundred pounds of zero on the display (see (A) of Figure 1 on page 3). Use fine balance control to set within +/- 80 count increments. (Example - if your indicator is set to read out in 5 lbs. increments then adjust to zero +/- 400 lbs.) CAUTION - The Coarse & Fine Balance Controls are 3/4 turn controls and are very sensitive, turn very slowly. Do not turn past the mechanical stops or the controls will be broken 19. When you have finished adjusting the Coarse & Fine Balance, tighten the lock nuts securely and check the display to make sure the limits have not been exceeded. 20. Close the cover of the indicator and tighten the two screws at the top. 21. Press the Zero and Total Load switches at the same time and hold. For location of these switches see (B) & (C) of Figure 1 on page Once the display shows all zero's the zero and total load switches can be released. The display will then return to zero The scale system is now cleared and ready for operation.

10 PAGE 9 Installation and Initial Hook-Up Procedure NOTE: FIELD CALIBRATION IS REQUIRED TO ACHIEVE 0.1% ACCURACY. Typical accuracy without calibration is 0.2%. 1. Mount load cells on equipment in accordance with equipment manufacturers recommendations. 2. CAUTION - Make sure all sensor cables are securely fastened..to the equipment with cable clamps or tie wraps. Also be sure that the cables are not close to any moving parts. 3. Mount the indicator to the equipment securely, in a position that affords a good viewing angle while operating the equipment. CAUTION - Ensure there is a good electrical ground between the indicator and the equipment. If the indicator is mounted on a non-metallic surface, a ground wire (20 gauge minimum) should be run from the indicator to all of the load sensors. Failure to properly ground the system can result in unstable weight readings on the indicator. 4. Loosen the two captive screws located at the top of the front cover on the indicator. Once these screws are loosened, the front cover can be opened, exposing the Terminal Strip Circuit Board, located inside the indicator housing at the rear. 5. Each load cell has a cable with 4 individual wires and a shield.

11 PAGE Short pieces of rubber tubing are supplied with the scale system. Place each load cell cable through one piece of tubing. Pull tubing down the cable a couple of feet. 7. Insert one load cell cable through each of the compression connectors (see J of Fig. 2 on page 4), located on the bottom of the indicator housing. Figure 9 8. All four load cell cables will be connected to Load Cell Terminal Strip (TS-3) see Figure 9 above. 9. Insert the bare section of all four black wires under the flat clamping plate designated BLK on TS-3. Tighten screw terminal securely. 10. Insert the four white wires under the terminal designated WHT and tighten securely. 11. Repeat this procedure for the four green wires and the four red wires. 12. All four load cell shields must be connected to one of the green terminals on TS-1 or TS-2, see Figure 9 above. The shields can be connected to either green terminal since they are common. Tighten screw terminals securely. 13. Place the rubber tubing (see Step #6) inside each compression connector. Dress cables leaving some slack for strain relief. Tighten all four compression connectors until all load cell cables are secure.

12 PAGE The power cord has three wires (white, green & black). Insert the power cord through the small compression connector (I) of Figure 2 on page 4. Connect the power cord to terminal strip #2 (TS-2), see (L) of Figure 3 on page 5. Observe the colour code and be sure to tighten all screws securely. Dress cable with some slack and tighten compression connector until the power cord is secure. 15. Connect the other end of the power cord to a power source of 12 to 28 volts D.C.. This power source can be a battery vehicle electrical system or A.C. power supply with 12 to 28 volt D.C. output. WARNING - The black wire must be connected to the negative (-) or ground The green & white wires must be connected to positive (+). If proper polarity is not observed the indicator will not turn on. 16. Turn the indicator on by pressing the Power On switch located on the front panel (see (D) of Fig. 1 on page 3). 17. Make sure the test switch (see (K) of Figure 3 on page 5) is in the norm (normal) position. 18. Adjust the Coarse Balance Control located on the terminal strip circuit board (see (0) of Figure 3 on page 5). Loosen the lock nut and adjust for a reading within several hundred pounds of zero on the display (see (A) of Figure 1 on page 3). Use fine balance control to set within +/- 80 count increments. (Example - if your indicator is set to read out in 5 Ib. increments then adjust to zero Ibs.) CAUTION - The Coarse & Fine Balance Controls are 3/4 turn controls and are very sensitive, turn very slowly. DO NOT turn past the mechanical stops or the controls will be broken. 19. When you have finished adjusting the Coarse & Fine Balance, tighten the lock nuts securely and check the display to make sure the limits have not been exceeded. 20. Close the cover of the indicator and tighten the two screws at the top. 21. Press the Zero and Total Load switches at the same time and hold. For location of these switches see (B) & (C) of Figure 1 on page Once the display shows all zero's the zero and total load switches can be released. The display will then return to ZERO The scale system is now cleared and ready for operation.

13 PAGE 12 Batching Mode Operation This mode allows the operator to weigh individual ingredients and zero the indicator after each ingredient is added. The total load on the scale system is automatically displayed for a short time following each zeroing operation. The total load can also be displayed at any time by pressing the Total Load switch. If this switch is pressed again it will go back to the reading before the Total Load switch was pressed, provided no weight has been added or removed from the system. The indicator can be set so Total Load is not shown when pressing the Zero switch. The indicator will zero immediately in this setting. LOADING Here is an example of a typical loading operation. Remember to zero the indicator before starting this operation. 1. The first ingredient to be loaded is 2,000 Kgs. After it is loaded the display shows The operator now presses the Zero switch on the front panel of the indicator and the display L2000 for a few seconds and then the display will show 0 NOTE: The L indicates total load. 3. The second ingredient to be loaded is 1,000 Kgs. After it is loaded the display show The operator presses the Zero switch and the display shows L 3000 for a few seconds, and then displays 0 5. The third ingredient to be loaded is 750 Kgs. After it is loaded the display shows The operator presses the Zero switch and the display shows L 3750 for a few seconds and then displays 0 7. Anytime the operator wishes to see the total load, he can press the Total Load switch. Anytime an L is displayed on the far left hand side of the display, the weight at that time is the total load. The total load will be displayed continuously until the Zero switch is pressed, then the display will return to zero. If the Total Load switch is pressed again the display will return to the previous weight shown. UNLOADING Unloading can be accomplished in the same manner as loading. That is the indicator can be zeroed after each unloading operation with the total load being displayed for a few seconds before the indicator goes to zero. A (-) minus sign will appear on the left side of the display when weight is removed from the scale system.

14 PAGE 13 Another method of unloading is to press the Total Load switch. The total weight on the scale system will be shown and the operator can watch the weight count down toward zero as he unloads. Here is an Example of a Typical Unloading Operation 1. There is a total of 3750 Kgs on the scale system. The first unload is 1000 Kgs. Zero the indicator by pressing the Zero switch. As we unload the display will count up, showing what has been unloaded. When 1000 Kgs is unloaded the display will show By pressing the Zero switch we can clear the display for the second unloading. After the Zero is pressed the display will show. L2750 for a short time. This is the weight left on the scale system. 3. After the total load is displayed for a short period of time, the display will return to zero 0 4. The second unload is 1500 Kgs. As we unload the display will count up, showing what has been unloaded. When 1500 Kgs has been unloaded the display will show Press the Zero switch and the display will show L 1250 for a short time and then the display will return to zero 0 6. At anytime the remaining load can be viewed by pressing the Total Load switch. The display will show L The total load will be displayed continuously until the Total Load switch is pressed again. 8. If the scale is left in the total load mode it will count down, always showing the total remaining load on the scale system. SPECIAL NOTES 1. There are symbols shown on the far left side of the display, when the scale is in operation. Their meanings are as follows: SYMBOL MEANING + Weight is being added to the scale system (loading). - Weight is being taken off of the scale system (unloading). L Weight being displayed at that time is the Total Load on the scale system. 2. Once a load/unload cycle has been completed, make sure the display shows zero Kgs before another loading operation is started. If there is a small weight being displayed and the Zero switch is pressed, this weight will be transferred to total load. To keep this from happening the Zero switch and the Total Load should both be pressed at the same time and held until the display shows

15 PAGE 14 Accumulator Mode Operation In this mode numerous loading operations can be stored in memory. When the Total Load switch is pressed, the weight on the scale at that time is entered into the accumulator memory. This weight is retained in memory after the load is removed from the scale system. Here is a typical example of this type of operation. 1. The first load put on the scale system is 8,000 Kgs. The display will show The operator presses the Total Load switch to enter this weight into memory. The display will show L4000 for a few seconds and will then display Once the first load has been removed from the scale system the display will show 0 4. The second load of 5,000 Kgs is placed on the scale system and the display shows The operator presses the Total Load switch and the display shows L9000 for a few seconds and then will display When the load has been removed from the scale system the display will show 0 7. Loads can continue to be accumulated in this manner until the capacity of the memory is reached, which is 200,000 kilograms. See overflow indication. Displaying Accumulate Weight The total accumulated weight can be displayed by pressing the Total Load switch. The accumulated weight will be displayed for a few seconds and then the display will show the weight currently on the scale system. Memory Retention The total accumulated weight will be retained in memory indefinitely as long as power to the indicator is not turned off. Anytime power is interrupted the accumulator memory is erased. Clearing Memory To clear the accumulator memory the operator must press and hold both the Zero switch and the Total Load switch until the display shows

16 PAGE 15 Overflow Indication The display will count up to 99,999. When the accumulator memory reaches 90,000 pounds or kilograms the display will start flashing once per second. Using this feature we are able to store weights up to 200,000. For example; if the display is flashing a number 10,250 this means the total accumulated weight is 110,250. SPECIAL NOTES 1. Anytime the Total Load switch is pressed it will take the weight shown on the display at that time and enter it into the accumulator memory. If the operator wishes to review the accumulated weight he must make sure there is no load on the system when the Total Load switch is pressed. Also if there is a small weight (20, 40, 60 Kgs) being displayed, press the Zero switch to clear this weight, so it isn't added to the total accumulated weight. These small weights should also be zeroed before placing a load on the scale system. 2. When in the accumulator mode the L on the far left hand side of the display, indicates Total Accumulated Weight. Model 25 Optional Remote Display figure 10 This remote display is supplied with a swivel mounting bracket and 30 feet of cable. The cable is connected to the main indicator at connector (H) (see Fig. 2 page 4). This display will show the same information that is displayed on the main indicator. This display does not have a + or - sign. Display Type and Size Display Illumination R3C1Cable Length Weight SPECIFICATIONS 5 Digit - Liquid Crystal - 1 Inch Electro-luminescent Panel 30 Feet 2 Pounds Dimensions (HxWxD) 4"x8" 4"

17 page 16 Optional A.C. Power Supply This optional A.C. supply provides 12 volts D.C. at 1.2 amps. Wire the standard power cord to the power supply as follows. Green & white wire to (+) positive screw terminal. Black wire to (-) negative screw terminal. Figure 11 Optional Power Cord with Connector and Socket This option is used to connect the scale system to tractor power. It is connected to the indicator in the same manner as the standard power cord (see page 8, #14). Note wiring for socket.

18 PAGE 17 Model 25R Optional Remote Display with Radio Control This optional remote display has the same specification as our Model 25 with the addition of a radio control. This option is supplied with a radio transmitter (see Fig. 13) and a radio receiver mounted inside the remote display (see Fig. 14). It is supplied with a 30 foot cable which plugs into the main indicator at connector (H) (see Fig. 2 page 4). Batching Mode Operation When the transmitter is activated it will have the same effect as pressing the Zero switch on the front panel, see (C) of Fig. 1 on page 3. The total load will be displayed for a short time and then the display will return to zero. Accumulator Mode Operation When the transmitter is activated it will have the same effect as pressing the Total Load switch on the front panel, see (B) of Fig. 1 on page 3. The current weight on the scale will be added to the total accumulated weight. Figure 13 Figure 14

19 PAGE 18 Optional Radio Control Kit This option consists of a radio receiver (mounted inside the plastic case) with a 17 foot cord. Also supplied with this option is a radio transmitter. This option is used when the user wants the features of radio controlled operation, but does not need the optional remote display (Model 25 or Model 25R). Batching Mode Operation When the transmitter is activated it will have the same effect as pressing the Zero switch on the front panel, see (C) of Fig. 1 on page 3. The total load will be displayed for a short time and then will return to zero. Accumulator Mode Operation When the transmitter is activated it will have the same effect as pressing the Total Load switch on the front panel, see (B) of Fig. 1 on page 3. The current weight on the scale will be added to the total accumulated weight. Figure 15 INSTALLATION The receiver box is mounted by loosening the six captive screws on the front. Once these screws are loose the cover can be removed, exposing four mounting holes moulded in the plastic box. Mount the box using four bolts. Replace the cover and tighten the six captive screws. The radio control kit is connected to the main indicator by inserting the phone plug at the end of the cable into the remote zero jack (G) of Fig. 2 on page 4. The unit is now ready for operation.

20 page 19 Radio Control Programming and Transmitter Battery Replacement PROGRAMMING - The radio control has 512 different digital codes to eliminate interference. These codes are set at the factory, by setting two, 9 position dip switches. One dip switch is located inside the transmitter and the other dip switch is on the radio receiver board. To change the digital code use the following procedure: 1. Gain access to the receiver board by loosening the six captive screws on the front cover of the Model 25R remote display or the radio control kit. Once these screws are loose the cover can be removed, exposing the receiver board. 2. Remove the metal clip from the back of the transmitter. Use the corner of this metal clip to pry off the plastic cover, exposing the battery and dip switches (see Fig. 16). 3. Locate the dip switches on the receiver board (see Fig. 17). 4. With a small screw driver set the dip switches on the transmitter to the desired program. Next program the dip switches on the receiver board exactly the same as the transmitter. Notice that the dip switches are numbered 1 through 9 to aid in programming. 5. Replace the plastic cover on the transmitter. 6. Replace the cover on the remote display and tighten the six captive screws.

21 page 20 Battery Replacement The transmitter uses a standard 9 volt transistor battery. To replace the battery use the following procedure: 1. Remove the metal clip from the back of the transmitter. 2. Use the corner of the metal clip to pry off the plastic cover, exposing the battery (see Fig. 17). 3. Remove the battery from the transmitter and detach the battery clip from the battery. 4. Connect a new 9 volt battery and place in transmitter. 5. Replace plastic cover on transmitter.

22 page 21 Trouble Shooting Guide 1. Symptom- Indicator Won't Turn On - a.) Check power leads, green and white wires to positive (+) and black wire to negative (-) or (ground). b.) Check for bad connection to power source or broken power cable. c.) If tractor socket is used, check polarity (see page 16). d.) Check 1 amp fuse on Terminal Strip Circuit Board. 2. Symptom- Indicator Displays Over-range a.) The Coarse Balance control may not be properly adjusted. Refer to page 8. #18 for details. b.) Make sure all screw terminals on the Terminal Strip Circuit Board are tightened securely. c.) Make sure the load applied to the scale system does not exceed the capacity. d.) Possible defective indicator or load sensor, see page 23 or 24 for system test procedure. 3. Symptom - System Operates But Is Unstable a.) Make sure indicator and load sensors are grounded. b.) Check all load sensors for mechanical binding and cut or pinched cables. c.) Make sure all screw terminals on the Terminal Strip Circuit Board are tightened securely. d.) Check for radio frequency interference (RFI) or electrical noise, which can be caused by A.C. power lines, electric motors, fluorescent lights, radio transmitters, vehicle ignition systems, etc. e.) Perform system test see page 23 or Symptom - System Operates But Is Not Accurate a.) Check sensitivity of indicator and load sensors to ensure they are the same. If they are not the same, a substantial error will result. Sensitivity is printed on I.D. labels of equipment. b.) Check all load sensor mountings for mechanical binding. Binding will result in low weight readings. c.) Check load sensor output, by placing a known weight directly above each load sensor. The indicated weight should be within a few pounds of the load applied. If there is a significant difference in the output of one or more load sensors, they should be replaced. d. When using 1% load sensors, make sure they are installed with the Top label up. With one sensor mounted upside down, as much as 50% error can be seen. 5. Symptom - Radio Control Will Not Operate - a.) Make sure proper connection has been made between the remote display or radio control kit and the main indicator. b.) Check programming of dip switches on transmitter and receiver (see page 19). c.) Replace battery in transmitter (see page 20). d.) In extremely cold weather the battery voltage in the transmitter may be reduced causing the transmitter to become intermittent or non-operative. In this case keep the transmitter in a heated area when not being used. Battery replacement will also help this situation.

23 page 22 Display Messages 1.HELP Indicates input voltage is below 10.5 volts D.C. - check battery, power supply or power wiring Indicates maximum capacity has been exceeded. It can also mean that there is a problem with adjustment of the Coarse and Fine Balance Controls. Another possible cause is a defective sensor or indicator. See page 23 or 24 for test procedure. 3. CHEC Indicates that the Coarse Balance Control has not been set to within count increments of zero. See #18 on page 8 for correct procedure. 4. ERROR Indicates that the temperature compensation memory is full. To clear the memory, press the Zero and Total Load switches at the same time until 5 Zero's are shown on display. This must be done with no load on the scale system. 5. A flashing display (other than #2 above) indicates you have reached 90% of the available capacity for the scale system.

24 page 23 System Test for 1% Scale Systems 1. Indicator Test a.) Rotate test switch (see Fig. 18) from the norm position to the Indicator Test position. b.) Remove all white sensor wires connected to Terminal Strips TS-1 & TS-2 (see Fig. 18). c.) In this switch position a test signal is fed to the indicator, which can be varied by turning the Coarse Balance Control. d.) If the indicator is operating properly, turning the Coarse Balance Control will change the reading on the display. The reading should remain stable when the Coarse Balance control is not turned. e.) If the indicator is operating properly perform the Bar Test. Figure Bar Test a.) Remove all the red, black, white and green wires from Terminal Strips TS-1 & TS-2. b.) Rotate the test switch from the Indicator Test position to the Bar Test position. In this switch position a test signal is fed through the bar under test. This signal can be varied by turning the Coarse Balance Control. c.) Take one bar cable and place the four individual wires into the Test Connectors (see Fig. 18) observing colour code. To connect wires to Tests Connectors, push down on the top of the connector and insert the bare section of the wire, then release the spring loaded test connector. d.) Once all four wires are connected, turn the Coarse Balance control. If the bar is functioning properly the reading on the display will change. The reading should remain stable when the Coarse Balance control is not turned. CAUTION - Remember the Coarse Balance control is a 3/4 turn device. DO NOT turn past the stops.

25 page 24 e.) Test all bars and Dummy Plugs, it is possible for more than one bar to be defective. f.) When testing is completed don't forget to return the test switch to the norm position and rewire all bar cables to their respective terminal strips. If this is not done, the system will not operate properly. System Test for 0.1% Load Cells 1. Indicator Test a.) Rotate Test Switch (see Fig. 18 on page 23) from the norm position to the Indicator Test position. b.) Remove all load cell wires from Terminal Strip TS-3 (see Fig. 18 on page 23). c.) In this switch position a test signal is fed to the indicator, which can be varied by turning the Coarse Balance control. d.) If the indicator is operating properly, turning the Coarse Balance control will change the reading on the display. The reading should remain stable when the Coarse Balance control is not turned. e.) If the indicator is operating properly perform the Load Cell Test. 2. Load Cell Test a.) Rotate Test Switch to the norm position. b.) Select one load cell cable, connect it to terminal strip TS-3, observing the colour code. c.) If this particular load cell is operating properly, turning the Coarse Balance control will change the reading on the display. The reading should remain stable when the Coarse Balance control is not turned. d.) Repeat this test for all load cells, it is possible for more than one load cell to be defective. e.) It is essential that only one load cell is connected during the load cell test. f.) If a defective load cell is found, after replacement the scale system must be recalibrated to maintain 0.1% system accuracy.

26 page 25 Cable Splicing Procedure for 1% Load Sensors 1.) Turn off indicator power switch. 2.) Cut out damaged area of cable. 3.) Strip off 1 1/2 inches of the outer jacket (rubber) on both ends of the cable, be careful not to nick the shield braid. 4.) Bend stripped portion of cable over, spread shield braid strands and carefully pull inner conductors through opening. 5.) Strip approximately V2 inch of insulation from the end of each wire and twist the individual strands together. Slip on the heat shrinkable tubing at this time. 6.) Make sure shrinkable tubing has been slipped on. Take like colour wires and twist securely together then solder. (Red to red, white to white, black to black, and braid to braid). 7.) Using plastic electrical tape, roll back each set of spliced wires and tape against cable jacket. Tape will serve as both insulator and strain relief. 8.) After all connections are made and taped, slide heat shrink tubing over splice area and heat with heat gun or propane torch until tubing has shrunk tight over cable jacket. Proceed carefully so as not to burn the tubing or cable.

27 page After repair has been completed use a Multi- Meter to check the D.C. resistance values at the cable end. If the measured values agree with the chart below then the scale bar is ready for use. Black to White = 350 ohms Black to Red = 700 ohms White to Red = 350 ohms Green or Shield to Red, White or Black = Infinity NOTE: Required materials to effect repair of cable. 1.) Plastic electrical tape (obtainable at local hardware store). 2.) Shrink tubing (purchase from local Eaton dealer under Eaton P.N ). 3.) Rosin core solder. Dip Switch Settings These switches are set to set the scales to Kilograms, to 5 Kilogram intervals, and sensitivity 1.) Light Blue switch on upper front board {1} on {2} off 2.) Red Switch on upper front board {1}on {2}off {3}off {4}on {5}off {6}off {7}off {8}off {9}on 3.) Dark Blue Switch, lower left of front board {S1}on {S2}off {S3}off {S4}off {S5}off Disclaimer: Every attempt has been made to accurately describe and price components. However we reserve the right to alter prices and descriptions without notice as well as reserves the right to make changes in the design, or to add improvements to the products, without incurring an obligation on goods purchased.