Quick Start
Reference Probe (-R models only)
Refer
probe
of the calibrator using the front panel keys. The procedure is summarized here.
put. The PRT
(RTD or SPRT) probe connects to the reference thermometer input using a 5-pin DIN connector.
four-wire probe is wired to the five-pin DIN connector. One pair of wires
d 2 and the other pair attaches to pins 4 and 5 (pins 1 and 5 source current and
ence Probe (-R models only)
The reference probe section of the user manual explains in detail how to set up the reference
Probe Connection
A PRT is the only type of probe that is supported by the reference thermometer in
Figure 1 shows how a
attaches to pins 1 an
pins 2 and 4 sense the potential). If a shield wire is present it should be connected to pin 3.
A two-wire probe can also be used with the reference thermometer. It is connected by attaching
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 significantly degraded using a two-wire
connection because of lead resistance.
1
2
4
5
Probe Connector
3
Shield
RTD Sensor
Figure 1 Probe connector wiring
Measure Temperature
urements using your probe, the following parameters must be set up:
press the “MENU” button. Access the reference probe select menu
ECT). Select “Probe 1” using the right or left arrow button. Press
To make temperature meas
1. From the main screen,
(REF MENU|SEL
“ENTER” to accept the probe to be used.
17
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