1-Point Humidity Calibration - E+E Elektronik EE29 Series Manual

D2
S2
D2
S1
D2
S2
red D2
D1
S1 S2
D2
S1
D2
S2
Hardware
7.3
When the working range is limited to a certain more narrow range,
a calibration at one humidity point is absolutely sufficient.
•
•
i
•
green
green
"CALIB HIGH"
green
"CALIB LOW"
green

1-point humidity calibration

In accordance with the working range, either the high or low
calibration point should be selected. (CP > or < 50% RH)
This calibration causes an extra inaccuracy for the rest of the
working range.
The one point humidity calibration may be done directly on the
circuit board, or for convenience, using the configuration soft-
ware supplied. (for more details, see the Configuration software,
5.4 "Calibration" / 1-point humidity calibration)
1-point humidity calibration procedure on the circuit board!
1. Insert the sensor probe into the reference humidity (calibra-
tion point) and stabilise for at least 20 minutes.
2. BUTTON S2: Pressing the button for 5 seconds starts the
procedure for the calibration mode RH. The calibration mode is
indicated by the lit LED "D2" on the circuit board.
3. BUTTON S1: Pressing the button for 5 seconds starts the
procedure. The calibration mode is indicated by the lit LED
"D2" and the symbol "CALIB HIGH" will appear on the optional
LCD display (CP = 50% RH).
or
BUTTON S2: Pressing the button for 5 seconds starts the
procedure. The calibration mode is indicated by the lit LED
"D2" and the symbol "CALIB LOW" will appear on the optional
LCD (CP < 50% RH).
4. BUTTON S1 (up) and S2 (down): Pressing one of the two
buttons will adjust the measuring value in steps of 0.1% up or
down to the reference value. The actual measuring value is indi-
cated on the display or can be measured with the analogue output.
5. BUTTON S1 (store): Pressing the button for 5 seconds
stores the calibration value and the procedure is ended. LED
"D2" flashes to indicate exiting of the calibration mode and the
symbol "CALIB LOW" or "CALIB HIGH" will disappear from the
optional LCD display.
BUTTON S2 (cancel): Pressing the button for 5 seconds the
calibration procedure will be ended without storing the calibra-
tion values. LED "D2" flashes to indicate exiting of the calibra-
tion mode and the symbol "CALIB LOW" or "CALIB HIGH" will
disappear from the optional LCD display.
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