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TTFM 6.1 Transit Time Flow Meter
SENSOR CABLE & TRANSDUCER RESISTANCE TEST
Unplug the green sensor terminal from the Transit Time board with the sensor wires still connected and
the BNC end of the cable is connected to the transducer. 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: TDR1 and TDR2. Resistance should be around 10K ohms for
any cable length. High readings indicate an open circuit and low readings indicate a short or partial short
in the sensor cable connections or transducer.
Note: The TTFM 6.1 will automatically detect connectivity to the sensors. Confirm that TTFM 6.1
indicates “
Sensor Good
” in the messages menu if your resistance measured is
approximately 10K Ohms.
Содержание TTFM 6.1
Страница 2: ...Note This page has been left blank intentionally ...
Страница 5: ...Page 5 TTFM 6 1 Transit Time Flow Meter 100 240 VAC Meter CONNECTIONS ...
Страница 27: ...Page 27 TTFM 6 1 Transit Time Flow Meter TYPICAL SENSOR INSTALLATION ...
Страница 53: ...Page 53 TTFM 6 1 Transit Time Flow Meter SENSOR MOUNTING COUPLING RECOMMENDATIONS ...