Ahlborn ALMEMO 710 Operating Instructions Manual page 56

13. Settings
ence channels. For all function channels the default reference channels Mb1
and Mb2 are available on the appropriate connector; these do not need pro-
gramming.
Function
* Humidity variables, capacitive on channel 3 or 4
* Humidity variables, psychr.
Function parameter (Mb1)
Difference (Mb1 - Mb2)
Average value over Mb2 to Mb1 on channel 2, 3, 4 (Mb1) Mb1 = channel 1
Sum of Mb2 to Mb1
q
/
(M01−M00)
WBGT
Arrangement of channels on the connectors
Once the quantity has been programmed the default reference channels can be
used (see above). Settings for the reference channels are described in 13.2.13.4.
13.2.13.2 Timer as function channel
Actual measuring durations can be output and saved by means of the function
channel ´Time´; the format is ´sssss´ or ´ssss.s´. (see 13.2.13) The resolution
can be set to 0.1 seconds by programming the exponent to -1. At a count of
60000 the timer is reset and starts again at 0. All the normal start / stop functions
can be used; the start, stop, output, and zero-setting of the timer can also be set
as actions triggered by limit value infringement. (see 13.2.8).
13.2.13.3 Special meas. ranges, linearization, multi-point calibration
Thanks to the ALMEMO
E4) the following tasks can be performed with a certain elegance :
1. Provision of special measuring ranges with internal characteristic
(see 13.2.13, quantities list, code ++)
2. Linearization of signals for voltage, current, resistance, or frequency - set by the user
3. Multi-point calibration of all V6 and V7 sensors
The ALMEMO
®
ALMEMO connectors. With special variant KL it is also possible to convert
®
measuring signals into equivalent display values based on a characteristic of
up to 30 support values. These support points are programmed to the EEP-
ROM in the ALMEMO
ing a measuring operation the measured values between these points are in-
terpolated on a linear basis. When correcting non-linear sensors (e.g. with
Pt100 or thermocouple sensors) initially the original characteristic is consid-
ered; and only then are the deviations interpolated on a linear basis and in-
serted. If a channel with a characteristic is deactivated or programmed with a
different quantity, the characteristic can subsequently be reactivated by pro-
gramming the special range ´Lin´ either via the keypad or command ´
56 ALMEMO
Function channel
on channel 3 or 4
on channel 2, 3, or 4
on channel 2, 3, 4 (Mb1) Mb1 = channel 1
on channel 2, 3, 4 (Mb1) Mb1 = channel 1
on channel 2, 3, 4 (q)
on channel 2 (GT)
® V6 standard connector with its 4-KB EEPROM (code
710 can as standard evaluate all appropriately programmed
® connector using the ALMEMO
® 710
Reference channel 1 Reference channel 2
Mb1 = temperature
Mb1 = Dry temp.
Mb1 = channel 1
Mb1 = channel 1
Mb1 = channel 1
® Control software. Dur-
Mb2 = humidity
Mb2=Humid temp.
Mb2=M0.0
Mb2=M0.0
Mb2=M0.0
Mb2=M1.1
Mb2=M0.0
´.
B99