6-13
IM 2553A-01EN
Temperature-Sensor-Simulation Thermoelectromotive-Force and Resistance Sourcing
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App
Index
4.
Turn an
output setting
dial to select R0.
5.
Flip the
POLARITY
switch down.
The current R0 value appears.
Output setting dials (use any)
POLARITY switch
5. Display the R0 value.
4. Select R0.
6.
Turn the four
output setting
dials to set the R0 value.
7.
Flip the
POLARITY
switch down.
The R0 value is confirmed.
Output setting dials (four)
POLARITY switch
7. Confirm the set R0 value.
6. Set the R0 value.
Explanation
The 2553A can source thermoelectromotive force (voltage) that corresponds to specified temperatures
after performing reference junction compensation. It is also possible to source thermoelectromotive
force without reference junction compensation.
Reference Junction Compensation Mode
Select the reference junction compensation (RJC) mode from the available options below. The 2553A
corrects the sourced thermoelectromotive force (RJC) according to the selected mode.
Auto
• When an External RJ Sensor Is Detected
When the 2553A detects that an RJ sensor is connected to the external RJ sensor input terminal
on the rear panel, the 2553A sources thermoelectromotive force that is corrected using the
temperature measured by the external RJ sensor.
• When an External RJ Sensor Is Not Detected
If an RJ sensor is not connected to the 2553A or is not detected, the 2553A applies its internal
RJC.
RJ sensors 257875 are sold separately as accessories. An RTD Pt100 can also be used as an RJ
sensor.
Internal
The 2553A sources thermoelectromotive force that is corrected using the temperature of its output
terminals.
6.5 Setting Reference Junction Compensation
