Operating Instruction
Q5.25.45
TLT
Page
14 / 18
Draft created/changed: 31.01.03/TT
Document created/changed: 03.08.2012 / Rea
Revision: -
Revision: -
Draft released: 18.02.03/DEL
Document released: 03.08.2012 / Rea
Jede unerlaubte Verwendung ist strafbar / Any unpermitted use is subject to prosecution.
Calibration humidity
*CAL RF
Measurement
mode
Calibration temp.
*CAL T
Analogue outputs
*AN OUT
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To get directly from any menu item to the measurement mode, press for minimum 2 seconds the “Enter” key.
The measurement mode is automatically activated 2 minutes after the last key press. The relative air humidity
and temperature (°C or °F) are simultaneously displayed. In case of an error an error-code is displayed instead of
the temperature. If the arithmetic average of the relative air humidity respectively of the temperature should be
displayed, then press in the measure mode the button [
↓
]. It appears then the average of the last 1/4 h (1 arrow
on the top right of the LCD). Press twice to show the average of 1 hour and three times for the average of the last
3 hours. After about three seconds all arrows disappear and the system returns to the current measurement
mode.
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You reach this menu by pressing ENTER -> „*
CAL RH
“ -> ENTER -> “
CAL 1
“ -> ENTER. There is the
possibility to adjust 3 humidity points separately (1: Low / 2: Medium / 3: High) without any restriction.
As an example, we show the adjustment by SAL-SC 33%:
Drop the SAL-SC 33% HR together with the adapter „CH“ over the probe, after having inspected visually
and shaken the SAL-SC. Make sure that the cylinder is close to the probe.
Wait at least 30 minutes (necessary for the balancing of the moisture inside the cylinder). The ambient tem-
perature should not vary during this time (SAL-SC 90%RH > wait 3h!).
By pressing the ENTER key go to the change mode.
Read the generated humidity level with the corresponding room temperature from the table of the SAL-SC.
Perhaps it is necessary to interpolate the value accordingly.
Set up the desired value of humidity with the keys [
↑
], [
↓
] (press ENTER for the next digit!)
After the last digit appears on the display “
no SAVE?
n“ By pressing the keys [
↑
] or [
↓
] you get to „YES
SAVE?“ and close off the function with the ENTER button (it appears briefly “
*DONE
*“ on the display).
The adjustment point “
CAL 1
“ is now terminated.
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The adjustment of the temperature measurement can be done at one point (offset shift of the temperature curve).
The procedure is the same as for the adjustment of the relative humidity. Here too, an entered value can easily be
deleted by the menu function“
CAL CLR
“. (Range +/- 4.0 °C) Press „Exit“ to leave this menu item.
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You can set the scaling of the analogue outputs and the ranges 0....10V/0...20mA or 2...10V/4...20mA
“
Range L
“: Lower % HR humidity value -> normally = 0.0 % RH
“
Range H
“: Higher % HR humidity value -> normally = 100.0 % RH
“
Range L
“: Lower temperature value -> normally = -20.0 °C
“
Range H
“: Higher temperature value ->normally = +80.0 °C
Example: (ANA OUT: 4 - 20 / switch I)
0.0 % RH -> 4 mA
100.0 % RH -> 20 mA AOUT 1
- 20.0 °C -> 4 mA
+80.0 °C -> 20 mA AOUT 2
„ANA OUT“: Outputs can be changed depending on the switch setting „Aout“
[
↓
] U: 0 - 10V <-> 2 - 10V
I: 0 - 20mA <-> 4 - 20mA
