E+E Elektronik EE31, Руководство пользователя

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17
Hardware
7.5 Resetting the customer calibration to the
factory calibration on the circuit board:
1. RH + T RESET: BUTTON S1 and S2 : In neutral mode
pressing both buttons simultaneously for 10 seconds customer
calibration settings are reset to factory calibration.
A short flash of the LED "D1" indicates the reset.
or
2. RH RESET: BUTTON S2: Pressing the button for 5
seconds starts the procedure for the calibration mode RH.
Pressing both buttons simultanously for 10 seconds customer
calibration settings are reset to factory calibration.
A short flash of the LED "D1" indicates the reset.
or
3. Temp. RESET: BUTTON S1: Pressing the button for 5
seconds starts the procedure for the calibration mode T.
Pressing both buttons simultanously for 10 seconds customer
calibration settings are reset to factory calibration.
A short flash of the LED "D2" indicates the reset.
Under several circumstances, the capacitive humidity sensor element can get damged. To avoid the costly return
of the entire transmitter to the manufacturer, easy replacement of the sensor with re-adjustment is possible.
Note:
− This will invalidate the factory calibration.
− The sensor elements should be touched by the lead wires only. (use tweezers)
8. MAINTENANCE
8.1 Sensor replacement
aktive Seite /
active Side
solder
points
active side
8.1.1 Sensor replacement of pluggable sensors
Sensor replacement procedure:
1) Switch off supply voltage.
2) Unscrew the filter cap carefully.
3) Pull out the humidity sensor element.
4) Put in the new humidity sensor, the active side has to face the inside (see drawing).
5) Screw the filter cap on again. (in case of pollution replace it by a new filter cap)
6) Establish connection to PC (RS232).
7) Switch on the supply voltage.
8) Start configuration software on PC.
9) For further instructions, see Configuration software, chapter 5.3 "Sensor/Probe replacement".