Product Manual

Primary Inputs and Outputs
Thermocouple (TC) Source 2
2-11
Thermocouple (TC) Source
The Product can source all common thermocouple types in °F or °C, plus basic millivolts
from -10.0 mV to 75.0 mV.
The following common thermocouple types are supported:
• B
• C
• E
• J
• K
• L
• N
• R
• S
• T
• U
• XK
• BP
1. Disconnect test leads from external devices.
2. Push  to select thermocouple and RTD/Ω mode, if not already selected. If RTD/Ω
mode is shown, push the key again to go to thermocouple mode.
3. If input mode is shown, push  and  to select output mode.
4. Push  to select the necessary thermocouple type or the millivolt range.
5. Connect the UUT to the thermocouple terminals of the Product with a standard TC
miniplug as shown in Figure 2-6. One pin is wider than the other. Do not push the
plug into the incorrect polarization. The TC wire used for the connection must agree
with the thermocouple type selected for correct cold junction compensation. It is
necessary for the miniplug and terminals to become stabile to the same temperature.
They are stable in approximately 3 minutes.
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
Unit Under Test (UUT)
Thermocouple Input
+
-
gwp015.eps
Figure 2-6. Thermocouple Output Connection