Amprobe THWD-5 Gebruikershandleiding - Pagina 7
Blader online of download pdf Gebruikershandleiding voor {categorie_naam} Amprobe THWD-5. Amprobe THWD-5 8 pagina's. Relative humidity temperature meter
Pagina afdrukken
CALIBRATIoN
1.
Make sure the THWD-5 is turned off. plug the meter's probe into a known trusted 32.8%
salt bottle. press "on/off + F/C" pushbuttons simultaneously for more than one second to
enter the calibration mode.
2.
3x.x% will be flashing on lCD (see fig.1). After 30 minutes the "3x.x%" will stop flashing.
The calibration for the "3x.x%" is now completed. proceed with the 7x.x% calibration.
3.
Remove the meter from the 32.8% salt bottle and place it into a 75.3% salt bottle.
press Min Max Reset pushbutton for more than one second to enter the7x.x% calibration
mode. "7x.x%" will be flashing on lCD. After 30 minutes the "7x.x%" will stop flashing.
The calibration process is now complete.
Note:
•
Auto power off is automatically disabled during calibration procedure.
•
in order to get high accuracy, you must do the calibration at a 23
airflow in the room.
•
if the value differs from 7x.x% or 3x.x% for more than 0.3%, the calibration fails .(see
trouble-shooting)
TRoUBLESHooTINg
power on but no display
•
Make sure the time of pressing the on/off pushbutton is more than 100 ms.
•
Check the batteries are in place, good contact and correct polarity.
•
Replace the batteries and try again.
Flickering display and then disappears
•
Check whether the low battery indicator displayed before display disappeared. if yes,
replace the batteries.
•
Turn on the meter by pressing "
fig. 1
on/off + Hold" key to disable auto power off.
6
± 2°C (73 ± 2°f) and steady