13
UNIT VERIFICATION
Initial Water Flow Present to Operate
1. Confirm that the hoses to weld gun arms are hose-dressed properly. Refer to the INSTALLATION
section of this manual.
2. Open the water shut-off ball valves to weld gun arms or cell.
3. Plug in the Turck Euro connector to the unit. The flowmeter LED display lights up and shows the
firmware revision, followed by a 5-second countdown (Restart delay). It then shows a blinking “0.00”
to indicate that there is No Water Flow (Alarm Fault mode).
4. Press the BYPASS switch. The orange light turns on and the shut-off valve opens (Shut-off Valve
Coil, DIN connector LED turned on).
5. Wait a few seconds for the water flow to stabilize, and then record the water flow as shown on the 3-
digit LED display (on the DeltaPoint Uno flowmeter nameplate).
If yes, proceed to the next step.
If no, see Troubleshooting – “Unit Will Not Start – Insufficient Water Flow.”
6. Alarm setpoint is 4.00 LPM (factory setting).
7. Change the BYPASS switch to START position. The orange light turns off and the green light
remains on.
Unit has passed basic water flow setup test (sufficient water flow present to keep the unit in operation).
Flow Fault Verification – Cap Pulled
8. Pull upper weld gun arm cap off.
9. The LED display on the flowmeter is reading “0.00” and flashing.
If yes, proceed to the next step.
If no, see Troubleshooting – “Water Continues to Flow When Cap is Removed.”
10. Fault alarm signal received at weld controller and robot stops welding.
If yes, proceed to next step.
If no, see Troubleshooting – “Fault Alarm Signal Not Received at Weld Controller.”
11. Water is off (not leaking at the gun arm). Shut-off and check valves closed and the LED on the DIN
connector to the shut-off valve coil is turned off.
If yes, proceed to next step.
If no, see Troubleshooting – “Water Continues to Flow When Cap is Removed.”
12. Replace cap and upper gun arm. Press the START switch and hold it down until the green light turns
on. This forces the shut-off valve to remain open until water flow is stabilized throughout the system
(flow above 4.00 LPM).
13. Release the START switch. The unit should continue to operate normally.
If yes, proceed to next step.
If no, see Troubleshooting – “Unit Will Not Start – Insufficient Water Flow.”
14. Perform steps 9 thru 13 on the lower weld gun arm.
15. If all steps are completed satisfactorily, the unit has passed the basic “cap pull” test. (Cap pulled, fault
alarm received at weld controller, water was shut off and no leaks were observed.) It is ready for the
next step.
Flow Fault Verification – Water Flow Shut off or Below 4.00 LPM
16. Close the supply water leg ball valve to weld gun arms or close until below 4.00 LPM.
17. Repeat steps 9 thru 13 from “Flow Fault Verification – Cap Pulled.”
18. If all steps are completed satisfactorily, unit is ready for final test.
System Verification – Restart Unit Remotely
19. Close the return water leg ball valve from weld gun arms.
20. Unit shuts off water, LED flashing “0.00”, and sends fault alarm to weld controller.
21. Open the return leg ball valve.
22. Restart unit remotely.
If yes, unit is ready for production operation.
If no, see Troubleshooting – “Unit Will Not Restart Manually or Remotely.”
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