© Isothermal Technology
Page 28 of 102
923 milliK manual - issue: 1.10
MUST use a copper miniature thermocouple connector in order to avoid introducing
unwanted additional thermal EMFs.
3.3.4 Configuring milliK to Measure a Thermocouple
The milliK can be used with both calibrated and uncalibrated thermocouples. Press the
Settings
(F3) key to access the Settings Window, which opens with the ‘Channel’ parameter
selected. Use the
←
←
←
←
→
→
→
→
keys to select the channel that you want to use. Then use the
↑
↑
↑
↑
↓
↓
↓
↓
keys
to select each parameter in turn and set it to the required value either by using the
←
←
←
←
→
→
→
→
keys
to sequence through the options or pressing the
↵
↵
↵
↵
key to open a new Window with all the
options listed. For an uncalibrated thermocouple or one that is not supplied with calibration
data, set ‘Thermometer’ to “Default Thermocouple”. If you want to use temperature units,
select one of the standard conversions for thermocouples. If your thermocouple is supplied
with calibration data (data pairs of polynomial coefficients), you can create a thermometer
entry in the database (see section 3.9.5) that uses this data to provide more accurate
conversion of the measured EMF to temperature.
A typical configuration for an uncalibrated (type K) thermocouple (using internal reference
junction compensation) would be:
In order to use external reference junction compensation (see section 3.3.2) you must enable
and configure one of the other channels to measure temperature using a PRT/SPRT or
thermistor. This channel will then appear as one of the options in the ‘Reference Junction’
parameter. A typical configuration for a type T thermocouple (using external reference
junction compensation by a PRT connected to channel 2) would be:
