Micronics UF AV5500, Руководство пользователя

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UF AV5500 Area-Velocity Flow Meter
SENSOR CABLE RESISTANCE TEST
Unplug the 4-pin green sensor terminal from the Doppler board and connect the sensor wires as shown.
With a multimeter, perform resistance checks for each set of wires. One single loose terminal may cause
false readings.
Test across shield and core of each wire: TMTR (black/white) and RCVR (black). Resistance should be
approximately 82.5K ohms for any cable length. High readings indicate an open circuit and low readings
indicate a short or partial short in the sensor cable.
Unplug the 2-pin green sensor terminal from the level board and connect the multimeter to the pins.
Resistance should be approximately 10K Ohms for any cable length. High readings indicate an open
circuit and low readings indicate a short or partial short.
Resistance measured across these 2 wires also indicates fluid temperature for QZ02L sensor, or ambient
temperature for PZ15-LP sensor.