Temperature Measurement Configuration - Keithley 2750 User Manual

3-34 Basic DMM Operation

Temperature measurement configuration

The Model 2750 is configured to measure temperature from the temperature measurement
configuration menu. Use the following general rules to navigate through the menu
structure:
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Thermocouple temperature measurement configuration
The steps to configure thermocouple measurements are provided in
ing SHIFT and then SENSOR, the menu starts at step 1 to select measurement units.
Each time you press ENTER to make a selection, the menu will automatically go to the
next selection. After pressing ENTER for the last step, the instrument will return to the
normal measurement state.
NOTE
Table 3-4
Thermocouple temperature measurement configuration
Step Menu structure
1 UNITS: C, F, or K
2 SENS: TCOUPLE
3 TYPE: J, K, T, E, R, S, B, or N Select thermocouple type.
4 JUNC: SIM, INT, or EXT
SIM: 000°C to 065°C,
273K to 338K, or
032°F to 149°F
5 OPEN DET: Y or N
*When using multiple channel operation (ROUT:MULT command) to connect a switching module input channel to the DMM, the
SIMulated reference junction will be used if the INTernal or EXTernal reference junction is selected.
Press SHIFT and then SENSOR to enter the menu structure.
Cursor position is indicated by a flashing menu item or parameter. Cursor position
is controlled by the
With the cursor on a menu item or parameter, use the
through the available options.
A displayed menu item and parameter is selected by pressing ENTER.
You can exit from the menu structure by pressing EXIT. However, any ENTERed
selections will apply.
An INT card is a switching module that has an internal reference junction (i.e.,
Model 7700). The INT reference junction setting cannot be selected if there is
not at least one INT card installed in the unit. With no INT cards installed,
selecting INT will cause the "NO INT CARDS" message to be displayed briefly.
With at least one INT card installed, the INT reference junction can be selected.
However, if you select it for the front panel inputs, or for a switching module that
does not have an internal reference junction (i.e., Model 7702), the simulated
(SIM) reference junction will instead be used and the "ERR" annunciator will
turn on.
Select temperature measurement units (°C, °F, or K).
Select the thermocouple transducer.
Select the SIMulated, INTernal, or EXTernal reference junction*.
For the SIMulated reference junction, set the reference junction
temperature. The displayed units depend on the present UNITS
setting.
Enable (Y) or disable (N) the open thermocouple detector.
Model 2750 Multimeter/Switch System User's Manual
and keys.
Description
Δ ∇
and keys to scroll
Table 3-4. After press-