9144-A-P-156 User Manual for the Fluke 9144-A-P-156 Field Metrology Well with process electronics, insert A

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Quick Start

Parts and Controls

Figure 8

RTD Sensor

Probe Connector

Shield

Probe connector wiring

A two-wire probe can also be used with the reference thermometer. It is connected by attach-

ing one wire to both pins 1 and 2 of the plug and the other wire to both pins 4 and 5. If a shield

wire is present, it should be connected to pin 3. Accuracy may be signicantly degraded using a

two-wire connection because of lead resistance.

4-20mA Connectors (2)

The 4-20mA connectors allow current and/or voltage probes to be connected for measurement

of associated devices.

PRT/RTD Connector (3)

The 4-wire PRT/RTD connectors allow the user to connect 3-wire and 2-wire (with jumpers,

see Figure 9 on next page) PRT/RTDs to the readout. The correct wiring for the 4-wire PRT/

RTD is shown on the instrument. Figure 9 shows the correct wiring for a 2 or 3-wire PRT/RTD

(see Section 1.5.2 Immunity Testing on page 8 for information on using clamp-on ferrites).

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User Manual for the Fluke 9144-A-P-156 Field Metrology Well with process electronics, insert A - Page 31