Product Manual

Application Notes
RTD Transmitter 4
4-7
RTD Transmitter
1. Disconnect test leads from external devices.
2. Select RTD output on the primary display as given in the “Resistance Temperature
Detector (RTD) and Ohms Source” section of Chapter 4.
3. Select the correct RTD type.
4. Select current input on the isolated display as given in the “Current Input” section in
Chapter 5.
5. Select the isolated loop power option. If a HART communicator will be used for setup of
the transmitter, select HART.
6. Connect the transmitter as shown in Figure 4-5.
7. To verify and calibrate the transmitter, refer to the transmitter documentation.
CURRENT
OUTPUT
HI
VOLTS
mA
RTD/
OUTPUT
HI
LO
HI
LO
LO
TC
SENSE
INPUT/OUTPUT
4 W RTD/
INPUT
100 V PK
MAX
100V MAX
100mA MAX
20V PK
MAX
20V PK
MAX
PRECISION PROCESS CALIBRATOR
7526A
100 V PK
MAX
HI
INPUT
LO
Switch Test
Reset
LOOP
HART
PWR
Documenting
Process
Calibrator
+
-
+
+
1
2
3
4
+
+
+
+
Press and Hold
for Switch Test
VOLTS
mA
754
DOCUMENTING PROCESS CALIBRATOR
gwp024.eps
Figure 4-5. RTD Transmitter Application