Checking The Sensor Condition (Remote Transmitter With Ip68 Housing) - Elis FLONET FN20xx.1 Series Design, Assembly And Service Manual

ELIS PLZEŇ a. s.

8.3.4. Checking the sensor condition (remote transmitter with IP68 housing)

The sensor and connecting cable are to be checked simultaneously. On the side of the transmitter, the
cable is terminated by a 9-pin Buccaneer connector via which all measurements shall be done.
Example: Measurement of R1. Connect Ohm-meter to connector pins 4 and 1 and measure resistance. Then
exchange the Ohm-meter leads and measure resistance again. Calculate the average value of the two
measurements and enter it as "Measured Value" into the table below.
Parameter Description
Coil to sensor body insulation resistance (>2M Ω)
R1
Excitation coil resistance (36 to 44 Ω)
R2
Measuring electrode to sensor body insulation resistance (>2M Ω)
R3
Measuring electrode to sensor body insulation resistance (>2M Ω)
R4
R5 Measuring electrode to connector pin connection (short circuit)
R6 Measuring electrode to connector pin connection (short circuit)
Insulation resistance between measuring electrodes (>2M Ω)
R7
R8 Interconnection of connector pins 1 and 6 (short circuit)
R9 Grounding electrode to sensor body connection (short circuit)
Dry-condition electrode to sensor body insulation resistance (>2M Ω)
R10
Dry-condition electrode to sensor body insulation resistance (>2M Ω)
R11
R12 Dry-condition electrode to connector pin connection (short circuit)
R13 Dry-condition electrode to connector pin connection (short circuit)
Insulation resistance between dry-condition electrodes (>2M Ω)
R14
Note:
If the electrodes indicating the not fully flooded (dry) piping condition are not included in the sensor
configuration, connector pins 7 and 8 are free and resistances R10 through to R14 need not be measured.
If the grounding electrode is missing, parameter R9 need not be measured either.
ELIS PLZEŇ a. s., Luční 425/15, 301 00 Plzeň, Czech Republic, Phone: +420/377 517 711, Fax: +420/377 517 722
Design, Assembly and Service Manual
Electromagnetic flowmeter FLONET FN20xx.1
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Measured value
Es90420K/c