Product Manual

Application Notes
Thermocouple Transmitter 4
4-13
Precision Temperature Measurement with Probe
1. With the probe and the custom coefficients that go with the probe, the total system error
is 0.03 °C.
2. Disconnect test leads from external devices.
3. Select RTD input on the primary given as given in the “Resistance Temperature Detector
(RTD) and Ohms Measure” section of Chapter 4.
4. Select the user-defined curve with the custom coefficients for the probe. If custom
coefficients have not been recorded for the probe, follow the instructions in the
“Resistance Temperature Detector (RTD) with Custom Coefficients” section in
Chapter 4.
5. Connect the probe as shown in Figure 4-11.
CURRENT
OUTPUT
HI
VOLTS
mA
RTD/
OUTPUT
HI
LO
HI
LO
LO
TC
SENSE
INPUT/OUTPUT
4 W RTD/
INPUT
100 V PK
MAX
100 V MAX
100mA MAX
20V PK
MAX
20V PK
MAX
SET
RECALL
LOCAL
EXP
AUTOSET
INPUT
OUTPUT
ZERO
RNG LOCK
C / FCJCDISPLAY
PRECISION PROCESS CALIBRATOR
7526A
7 8 9
VOLTS
STBY
OPR
TYPE
UNITS
CE
ENTERSHIFT
TC
RTD
mA
456
12
0
3
Probe
gwp030.eps
Figure 4-11. Precision Temperature Measurement with Probe