How To Configure The Ma-Output; How To Calculate Temperature Based On Measured Ma-Value - M&C EC-30C Instruction Manual

12.2 How to configure the mA-output

The mA-output value always corresponds to the temperature of the active deep-cooling
unit. That means, that it always represents the current ouptut dew point. T
temperature limit set in the parameter menu. T
is the upper temperature limit and is assigned to 20 mA.
By changing the temperature limits, the user can adapt the mA signal to the required tem-
perature range ∆T. This way the resolution of the signal can be influenced.
Depending on the temperature limits set by the user, either ∆T
terment first.

12.2.1 How to calculate temperature based on measured mA-value

The temperature of the deep-cooling unit can be determent by using the measured
mA-output values. To calculate the temperature, please use the following formulas:
For T ≤ 0 °C (32 °F):
min
display
For T > 0 °C (32 °F):
min T
���� ���� ���� ���� ���� ���� ����
display
With the following values for I
����
offset
∆I
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is either assigned to 0 mA or 4 mA. T
min
( I − I ) ∗ ∆T
mess offset
∆I
= (
and ∆I:
0 − 20
0
offset
4
4 − 20 m����
m���� , wenn
when
=
20
0
, wenn
m����
when
16
4
m����
, wenn
when
=
, wenn
m����
when
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is the lower
min
or ∆T needs to be de-
min max
) + ∆T
min
m����
− 20
− 20
m����
m����
max
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