Stange SE-707, Руководство по эксплуатации

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Program Controller SE-707
© 2018 by STANGE Elektronik GmbH
152
Subject to technical modifications
8.3.4.2 Humidity Calculation
Humidity calculation can be realized with this function. The temperature values are acquired by means of two distinct actual
values. For the air pressure and the output of the calculated value each one of the 80 variables available in the instrument is
used.
Temperature sensor
“dry”
Temperature sensor
“humid”
Actual air pressure
The actual air pressure can be specially defined by means of a
variable; otherwise (Entry “none”), the normal air pressure of 1013
mBar is taken as a basis for the calculation.
Criteria for humidity calculation:
Function Entry Range
Parameter:
Number Number 0...2
Description 16 Unicode characters
Variables No. rel. Humidity Number of variables (1…80), in which the relative humidity (0...100%)
should be archived; none= humidity calculation switched off
Actual value No. Dry Number of actual values (1...48) which value is used as dry air
temperature (°C).
Actual value No. Humid Number of actual values (1…48) which value is used as wet-bulb
temperature (°C).
Variables No. Air Pressure Number of variables (1...80) which value is used as barometric air pressure
(mbar); none = default air pressure 1013 mbar
Recording of
Act. Value 1
(°C)
Recording of
Act. Value 2
(°C)
Variable
(mBar)
Psychometric
humidity calculation
(2 x per second)
Variable
(%)
Relative
air humidity