22
HOW TO MEASURE A TEMPERATURE USING A TC SENSOR
Depress the MEAS push-button, the display will show the following:
By s or t push-buttons select the desired input sensor, that is
"TC".
Push the FUNC push-button; the display will show the following:
By depressing the s or t push-buttons select the desired TC type
(e.g. J).
NOTE: when ITS-90 is selected, the TC type U and L are not
available so that the instrument will show this two TC type with a
small letter and it does not allow to select it by jumping the two
symbols during the cursor scroling.
Depress the FUNC push-button again the display will show the
following:
By pushing the s or t push-buttons select the desired engineering
unit (e.g. °C).
Push the FUNC push-button; the display will show the following:
Depressing the s or t push-button, select the desired cold
junction compensation type (external or internal) (e.g. INT).
NOTE
A)When the internal cold junction compensation has been selected,
the instrument uses an internal RTD to compensate the
ambient temperature (from 0 to 45 °C or from 32 to 113 °F) and it
starts immediately to display the measured value.
B)If, otherwise, the external cold junction compensation has been
selected, the instrument requires to insert the external reference
junction compensation value (the temperature of the external
reference junction compensation box).
This value can be programmed:
- from -20 °C to +80 °C or -4.0 °F to 176.0 °F for TC type J, K, T,
E, R, S, U, L, PLII;
- from 0 °C to 80 °C or from 32 °F to 176 °F for TC type B, N, Ni/
Ni18%Mo, W, W3 and W5 .
By the numerical keyboard, set the desired compensation value
(if no value is inserted, the instrument will use a value equal to 0
°C or 32 °F according to the engineering unit previously se-
lected).
MEAS
TC RTD mA mV TX
K J L E T U W W3
S R B N P Nm W5
ENGINEERING UNIT
°C °F
CJ INT
CJ EXT XXXXX
M20-e-3.p65 7/9/01, 2:40 PM22
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