Diagnostic Mode - Universal Flow Monitors FlowStream OFS User Manual

Diagnostic Mode

This feature is provided to observe the state of the internal sensors. It is strictly a passive
troubleshooting tool. THERE ARE NO USER-SERVICEABLE PARTS INSIDE THE
FLOWMETER. If any parts of the flowmeter are removed or unscrewed, the warranty becomes
void and UFM assumes no responsibility for the proper operation and/or safety of the unit.
If the operation of the flowmeter seems unstable or incorrect, contact the factory for a step-by-
step diagnostic. You will be asked to enter the Diagnostic mode as show below, and report the
value for each sensor. This would provide sufficient information for determining if an internal
component has failed.
To enter Diagnostic mode:
1. Enter "rAtE" mode (see
2. Remove power from the unit.
3. Press A2 and hold.
4. Turn the power back on. Continue holding A2 until "FACt" is displayed.
5. Release A2 and immediately press A1 before the horizontal bars appear.
6. When "dIAG" is displayed, release A1.
7. The LCD will show "t1" for one second, followed by a 3- or 4-digit reading.
8. Observe this reading for about 10 seconds to make sure it is stable. Then record the low
and high values encountered during the 10 seconds.
FSMAN.6 081214
Flow Rate).
Press and hold before applying
power, then turn the power on
Press and hold
Release
Temperature sensor reading is
displayed
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