Keithley 2001

IEEE-488 Reference
4-233
4.25 :UNIT subsystem
The UNIT subsystem is used to configure and control the measurement units for TEMP and
ACV, and is summarized in Table 4-33.
:TEMPerature <name>
:UNIT:TEMPerature <name> Specify TEMP units
Parameters <name> = C or CEL °C temperature units
= F or FAR °F temperature units
= K K temperature units
Format :unit:temp <name>
Defaults Power-up Saved power-on setup
*RST C temperature units
:SYSTem:PRESet C temperature units
Description This command is used to specify the units for temperature measurements.
Programming example OUTPUT 716; “:unit:temp f” ! Display temp in °F
Table 4-33
UNIT command summary
Command Description
:UNIT
:TEMPerature <name>
:TEMPerature?
:VOLTage
:AC <name>
:DB
:REFerence <n>
:REFerence?
:DBM
:IMPedance <n>
:IMPedance?
:AC?
Select temperature measurement units: C, CEL, F, FAR, K.
Query temperature units.
Path to configure ACV units.
Select ACV measurement units: V, DB, DBM.
Path to set DB reference voltage.
Specify reference in volts.
Query DB reference.
Path to set DBM reference impedance.
Specify reference impedance.
Query DBM reference impedance.
Query ACV units
Notes:
1. Brackets ([ ]) are used to denote optional character sets. These optional characters do not have to be included in the program
message. Do not use brackets ([ ]) in the program message.
2. Angle brackets (< >) are used to indicate parameter type. Do not use angle brackets (< >) in the program message.
3. Upper case characters indicate the short-form version for each command word.