Fluke 9100 User Handbook Manual page 50

Final Width = 215mm
6.6.4.18
[SOUR]:TEMP:UNIT(?) <CPD>{C|CEL|F|FAH|K}
Purpose
This command affects the values of subsequently programmed temperature. This is clearly demonstrated by the following
examples:
1. A 9100 unit is already programmed to simulate a thermocouple at 200 C (Celsius). To simulate 300 C, it is necessary only to
send the value command: TEMP:THER 300.
2. If now the same unit is required to respond to Fahrenheit values, the command: TEMP:UNIT F can be sent. The voltage output
resulting from the previous 300 C programming will not change, but now the unit recognizes that voltage as having the
equivalent Fahrenheit value (572). For instance; if the TEMP:THER? query is sent, then the unit will respond with the number
572 only. The other change is that subsequent value-programming commands must be sent with the required temperatures
expressed in Fahrenheit.
3. Reprogramming must now follow in Fahrenheit values, so the command: TEMP:THER 482 can be sent, resulting in an output
voltage representing a simulated temperature of 482 F (250 C or 523K).
<CPD>
The 'character program data' selects the factor which will govern the conversion from temperature value to simulated thermocouple
voltage output (selected thermocouple type) or resistance output (selected RTD type). Where users wish to enter temperature values
in units of Celsius, Fahrenheit or Kelvin, this command permits the required entry unit to be selected.
C|CEL For subsequent commands TEMP:THER <DNPD> or TEMP:PRT <DNPD>, the 9100 will recognize the units of
the <DNPD> value as 'degrees Celsius'.
F|FAH For subsequent commands TEMP:THER <DNPD> or TEMP:PRT <DNPD>, the 9100 will recognize the units of
the <DNPD> value as 'degrees Fahrenheit'.
For subsequent commands TEMP:THER <DNPD> or TEMP:PRT <DNPD>, the 9100 will recognize the units of
K
the <DNPD> value as 'Kelvins'.
Function Change, RST Common Command and Power-up
The most-recently programmed 'units' setting is remembered regardless of [SOUR] keyword changes until either the setting is
changed by another TEMP:UNIT command, a RST command is sent, or the next power down. Power-up and RST default
units are 'Celsius'.
Response to Query Version
The instrument will return the present 'units' setting {C|F|K}.
6-44 Section 6: 9100 System Operation — SCPI Language