ECM BB100, Instruction Manual, Page: 27 / 37

Problems and Solutions
1.
Meter display very jumpy and/or indicates zero flowrate intermittently.
Probable cause #1: Too much liquid has condensed in the meter.
Solution: Remove one drain plug from each tank and allow the liquid to drain out.
Probable cause #2: Noisy power or power that drops below 11 V.
Solution: Ensure that clean power of between 11 and 28 VDC @ 300 mA is applied to
the meter. Direct connections to the vehicle’s battery are recommended and
examine the power using an oscilloscope to see if the voltage drops below
11 V, even for a short time.
2.
Meter shows a flowrate at zero flow (Note: it can of course show a flow total at zero
flow).
Probable cause #1: See Probable cause #2 (above)
Probable cause #2: Damaged ultrasonic receiver and/or transmitter
Solution: Contact ECM.
3. Only one segment of the display lights.
Probable cause: One of the two power grounds has been incorrectly wired.
Solution: Correctly wire the power to the meter. See General Information section.
4. The BB100 does not power-up with a new power cable.
Probable cause: One of the two grounds has not been wired.
Solution: Correctly wire the power to the meter. See General Information section.
5. Meter forgets operating mode and programming.
Probable cause: EE Prom in the meter has expired.
Solution: Contact ECM.
6. Meter is too slow reacting or too “jumpy”.
Probable cause: Meter display and analog output update rate, and flow averaging
period are improperly set for application.
Solution: If meter is too slow, make display and analog output update rate
faster, and flow averaging period shorter. (continued on next page)
Maintenance and Troubleshooting 23