Changing The Parameter Setting; Saving The Parameter Setting - testo 54 Serie Manual De Instrucciones

5.2

Changing the parameter setting

1. press the right-hand/grey key to change the
parameter setting by one value at a time
⇑
2. to input numerical values, select first the decade with
the left-hand/red key
⇑
3. the decade blinks
5.3 Saving the parameter setting and
switching to the following parameter
1. keep the left/red key pressed
⇑
5.4 Programmng the adjustable parameters
5.4.1 Input signal type
Selection in the menu
5.4.2 Reference point compensation
A thermoelectric temperature measurement measures
a (thermoelectric) voltage generated by a thermoelec-
tric couple. The value of the thermoelectric voltage
depends on the temperture difference between the
measured point and the reference point.
In order to define accurately the temperature at the
measured point, the temperature of the reference point
must be constant and/or known. To do so, the internal
and external reference points are differentiated.
For the internal reference point compensation, the devi-
ce is fitted with an internal temperature sensor that
measures the current temperature of the terminal. This
Range
Thermoelectric couple J
Thermoelectric couple K
Thermoelectric couple N
4. set now the numerical value using the right-
hand/grey key
⇑
5. to reach the following decade, press the left-
hand/red key
⇑
6. if negative numerical values are required, set the left
decade to "–" or "–1".
2. and press simultaneously the right/grey key.
⇑
Note :
The fields with a grey background
contain the factory-set default
values.
temperature is used to compensate the measured
thermoelectric voltage. This measuring method requires
to connect the sensor with the terminal of the display
by means of appropriate compensation lines. These
terminals are the internal compensation point.
When using the external reference point compensation,
the temperature of the reference point is maintained at
a constant and known value by means of appropriate
measures. The temperature sensor ist connected with
the device, which is set to the constant temperature of
the reference point, by means of a simple copper wire.
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