Function Channels - Ahlborn ALMEMO 2590-2A Operating Instructions Manual

Temperature, refrigerant R23 °
Temperature, refrigerant R134a °
Temperature, refrigerant R404a °
Temperature, refrigerant R407c °
Temperature, refrigerant R410 °
Temperature, refrigerant R417a °
Temperature, refrigerant R507 °
TC = temperature compensation,PC = atmospheric pressure compensation, Mbx = reference channels
* Humidity variables (Mb1 = temperature, Mb2 = humidity / humid temperature)
only via special connectors with internal characteristic (see 13.11, others by request)
++
° 10 measuring ranges for refrigerants, only with device option R (Mb1=pressure in mbar)

Function channels

13.10
At the end of the table of measuring ranges and units (see above) under the
sub-heading function channels there is a group of ranges that can be used to
represent function parameters for measured value processing or for calculated
results obtained by linking certain measured values on measuring channels
(see Manual 6.3.4). Reference to the actual measuring channels is provided by
one or two reference channels. For all function channels there are preferred
channels on the appropriate connector; reference channel programming is not
required because these values are referred to by standard reference channels
Mb1 and Mb2.
Function
* Humidity variables, capacitive
* Humidity variables, psychrometric on channel 3 or 4
Function parameter (Mb1)
Difference (Mb1 - Mb2)
Average value over Mb2...Mb1
Total value of Mb2...Mb1
̅̅̅̅̅̅̅̅̅̅̅̅̅̅̅̅̅̅
⁄
q ̅ (M01 − M00)
WBGT
Arrangement of channels on the connectors
Once the range has been programmed the standard reference channels can be
used. Settings for the reference channels are described in Section 13.12.6.
FDA602Lx
FDA602Lx
FDA602Lx
FDA602Lx
FDA602Lx
FDA602Lx
FDA602Lx
Function channel
on channel 3 or 4
on channel 2, 3, or 4
on channel 2, 3, 4 (Mb1)
on channel 2, 3, 4 (Mb1)
on channel 2, 3, 4 (Mb1)
on channel 2, 3, 4 (q)
on channel 2 (GT)
13. Sensor programming
-100.0...+26.0
-75.0...+101.0
-60.0...+65.0
-50.0...+86.0
-70.0...+70.0
-50.0...+70.0
-70.0...+70.0
Reference chan-
nel 1
Mb1 = temperature
Mb1 = TT
Mb1 = channel 1
Mb1 = channel 1
Mb1 = channel 1
Mb1 = channel 1
Mb1 = channel 1
Mb1 = channel 1 Mb2=M00
°C
R23
°C
R134
°C
R404
°C
R407
°C
R410
°C
R417
°C
R507
Reference
channel 2
Mb2 = humidity
Mb2 = HT
Mb2=M00
Mb2=M00
Mb2=M00
Mb2=M05
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