Temperature Measurement Procedure - Keithley 2750 User Manual

3-36 Basic DMM Operation
The steps to configure 4-wire RTD 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 3-7
4-wire RTD temperature measurement configuration
Step
1
2
3

Temperature measurement procedure

NOTE
1.
2.
3.
4.
5.
As shown in Table 3-7, you can select the USER sensor type, but you cannot
change the USER parameters from the front panel. The parameters for the
USER type can only be set using remote programming (see TEMPerature:FRTD
commands in Table
Menu Structure
UNITS: C, F, or K
SENS: 4W-RTD
TYPE:PT100, D100, F100,
PT385, PT3916, or USER
Make sure the INPUTS switch is in the correct position. To use front panel
inputs, it must be in the "F" (out) position. For switching modules, it must be in
the "R" (in) position.
If a switching channel is presently closed (displayed), press OPEN to open it.
Select the temperature measurement function by pressing TEMP.
Configure the temperature measurement as previously explained in
measurement configuration."
Connect the temperature transducer(s) to be measured.
If using a switching module, perform the following steps to close the desired chan-
nel. Keep in mind, that for 4-wire RTD measurements, you will close the primary
(INPUT) channel (1 through 10). The channel that it is paired to will close
automatically.
a. Press the CLOSE key.
Δ
b. Use , , , and
previously closed channel(s) (if any) will open, and the specified channel (or
channel pair) will close.
Model 2750 Multimeter/Switch System User's Manual
3-8).
Select temperature measurement units
(°C, °F, or K).
Select the 4-wire RTD transducer.
∇
to key in the channel number and press ENTER. The
Table 3-7. After press-
Description
Select 4-wire RTD type.
"Temperature