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© Isothermal Technology
Page 83 of 102
923 milliK manual - issue: 1.10
The milliK will then report the measured voltage, for example “1.12999999E-007”. Send
READ?
to make subsequent measurement using the same settings.
The following command performs the same measurement:
MEAS:VOLT1?
8.6.3 Measuring Temperature using SCPI Commands
In order to measure temperature, you need to make one of the base unit measurements
(resistance for PRTs/SPRTs/thermistors or voltage for thermocouples) and then convert this
into a temperature using a conversion algorithm (for example ITS-90 for an SPRT). The data
for the conversion temperature algorithms is stored in a database accessed from the operator
interface. It would be very difficult to make this information available through SCPI
commands so it is not possible to request a measurement in temperature units using SCPI
commands. However, it is possible to set up measurement(s) using the operator interface and
then to access the results using SCPI commands. To do this, simply setup your milliK to
make the required measurement from the front panel (see section 3.1 for an example of how
to do this) and then when the milliK is running and making the required measurement send
the command:
MONITOR<channel#>? 4
Where <channel> is the number of the channel from which you require the measurement and
4 defines a four second timeout for the command. The milliK will then echo the measurement
the next time a results is available for that channel. It will report the value and units, for
example: “+9.87001,C”.
Where units
= R
(for ohms)
=mV
(for milli-volts)
= K
(for Kelvin)
= C
(for °C)
= F
(for °F)
If the milliK detects that the requested channel is not enabled, it will report “Channel Not
Enabled”.
Isotech’s “Cal NotePad” software supports the milliK product (using the MON#? command)
and can be downloaded from
http://isotech.info/milliK