Agilent 34980A  Multifunction Switch/Measure Unit *34980-90005*

3 Features and Functions
Front Panel Operation: To select the thermocouple function on the active
channel, choose the following items.
DMM or Channel (Configure) > TEMPERATURE > PROBE TYPE > THERMOCOUPLE
Then, use the knob to select the thermocouple type from the list.
THERMOCOUPLE TYPE > B|E|J|K|N|R|S|T
If desired, you can enable the thermocouple check feature on the active
channel (opens are reported as “OPEN T/C”).
T/C CHECK > OFF|ON
To select the reference junction source for the active channel, choose one
of the following items.
REFERENCE > FIXED|EXT|INT
For an external reference, configure an RTD or thermistor as the external
reference channel.
Channel (Configure) > TEMPERATURE > PROBE TYPE > RTD > . . . USE AS EXT REF?
Remote Interface Operation: You can use the CONFigure or MEASure?
command to select the probe type and thermocouple type. For example,
the following command configures channel 3001 for a J- type thermocouple
measurement.
CONF:TEMP TC,J,(@3001)
You can also use the SENSe command to select the probe type and
thermocouple type. For example, the following command configures
channel 2003 for a J- type thermocouple measurement.
SENS:TEMP:TRAN:TC:TYPE J,(@2003)
The following commands use the SENSe command to set a fixed reference
junction temperature of 40 degrees (always in °C) on channel 2003.
SENS:TEMP:TRAN:TC:RJUN:TYPE,(@2003)
SENS:TEMP:TRAN:TC:RJUN 40,(@2003)
The following command enables the thermocouple check feature on the
specified channel (opens are reported as “+9.90000000E+37”).
RTD Measurements
SENS:TEMP:TRAN:TC:CHECK ON,(@2003)
The instrument supports RTDs with = 0.00385 (DIN/IEC 751) using
ITS- 90 software conversions or = 0.00391 using IPTS- 68 software
conversions. The default is = 0.00385.
98 Agilent 34980A Mainframe User’s Guide