es 3700 System Switch/Multimeter User's Manual Section 5:
Basic Digital Multimeter (DMM) Operation
-900-01 Rev. A / August 2007 5-
Thermocouple temperature measurement configuration
To configure temperature measurements from the front panel:
1. If needed, change to the temperature function ("TMP" is displayed) by pressing the FUNC
key.
2. Press the CONFIG key and then the DMM key. The "TEMP ATTR MENU" will open.
3. Set units of measurement degrees:
Using the wheel, scroll to the "UNITS" menu item (right most menu item) and press the
ENTER key.
Turn the wheel to select desired units (Celsius, Kelvin, or Fahrenheit) and press the ENTER
key.
4. Set thermocouple device attributes:
Turn the wheel to scroll to the "THERMO" menu item and press the ENTER key.
Turn the wheel to scroll to the "COUPLE" temperature connection and press the ENTER key.
Turn the wheel to select the desired thermocouple type (J, K, T, E, R, S, B, or N) and press
the ENTER key.
5. Set thermocouple device reference junction type:
Turn the wheel to scroll to the "REFJUNCT" menu item and press the ENTER key.
Select the desired Reference Junction: SIMULATED, INTERNAL, or EXTERNAL. See
Reference junctions (on page 5-36) for more information.
Press the ENTER key to set the selection.
6. If a SIMULATED reference junction was selected in step 5:
Turn the wheel to scroll to the "SIMREF" menu item and press the ENTER key.
Using the wheel, dial in the desired reference temperature (default values are units dependent:
023.00°C, 296.15°K, and 073.40°F).
Press the ENTER key to set the selection.
7. Press the EXIT key twice to leave the "TEMP ATTR MENU."
Alternatively, use the bus command dmm.thermocouple to set attributes.
Thermistors
The temperature measurement range for thermistors is -80°C to 150°C (0.01° resolution).
Thermistor types that are supported include the 2.2k, 5k, and 10k types.
The thermistor is a temperature sensitive resistor. Its resistance changes non-linearly with
changes in temperature. Most thermistors have a negative temperature coefficient. As
temperature increases, the resistance decreases. The Series 3700 measures the resistance of
the thermistor and calculates the temperature reading.
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