ELECTRA-flo - V1.5x - 9-19-11.PMD - Air Monitor Corporation

ELECTRA-floSECTION 8 – TROUBLESHOOTING8 – TROUBLESHOOTINGPersonnel should be familiar with the operation of the ELECTRA-flo (see Section 5) before performing anytroubleshooting.ProblemDisplay blank; with backlightand outputsSolution– Check the display's ribbon cable for proper seating in transmitter circuit board– Bad display or transmitter boardDisplay blank; no backlightwith outputs– Check the display's ribbon cable for proper seating in transmitter circuit board– Defective displayDisplay blank with backlightand no outputs– Defective display– Defective transmitter board– Check the CPU LED flashing on transmitter board (located to the right of the display on thetransmitter board. Figure 4.2, Page 6)Display blank withoutbacklight and no outputs– Check for proper supply voltage at P8 terminals 1 & 2 (see Figure 4.2, Page 6)– Check F1 fuse– Defective transmitter board– Check the CPU LED flashing on transmitter board (located to the right of the display on thetransmitter board. Figure 4.2, Page 6)Normal Operation withExtremely Low or High Flowdisplayed– Check F2 Fuse– Verify upon powering up transmitter that all sensors are "Found" and "Enabled" (Section5.2, Page 8)– Verify Factory Set Up data is correct in Operator Menu under "Flow Configuration" (Section5.8, Page 14)– Enter Supervisor Menu (Section 6, Page 28), "Diagnostic Display Selection" (Section 6.4,Page 33). Scroll through all sensors, log data, and contact the Factory.Display reading "0" flow withNO "Alert" message– Ensure Flow is above lockdown (see Section 5.8)– Check cable connectionsDisplay reading "0" flow with"Alert" message– Indicated there is a fault with one or more sensors– Perform "Diagnostic Alert Determination" in the "Supervisor Menu; determine if "Sensor" or"Average" alert (Section 6.5, Page 34)– Perform "Diagnostic Display Selection" in the Supervisor Menu; determine which sensorhas a failure (Section 6.4, Page 33)If after following the Troubleshooting steps the ELECTRA-flo continues to operate improperly,contact the Service Department for further assistance (see Section 10).Air Monitor Corporation116-053-13.P65 (2/28/12)44ELECTRA-flo - IO&M Manual