ADA INSTRUMENTS ZHT 100 (6 in 1), Руководство по эксплуатации

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ZHT 100 (6 in 1)
6
PB
PB
Operation notes
1. Please don’t operate this product unless the manual has been read.
2. To assure accuracy, remove the protection cap and make sure the sensor is fully exposed before taking any measurement.
3. Remove the battery before long term storage. Keep the sensor part away from water or any kind of liquid.
4. To assure accuracy after calibration, do not expose the sensor in saturated environment for long.
5. To avoid damages to the instrument, do not operate near following places
a) Vapor and dusty places
b) EMF places (Electro-magnetic fields: such as arc welders, induction heaters)
c) Static environment
d) Heat shock (caused by great and sudden temperature change), wait for 30 minutes until the unit is stabilized before any operation.
6. After long working hours, the sensor may be polluted and the electronic parameters happen to drift. If the measured value is out of the actual
measuring range, these steps as follows should be taken to calibrate.
7. Please purchase the standard 33% and 75% humidity salt bottle in the market.
A) Please press to deactivate auto power off function and turn the unit on (press the upper left button, then press the middle
power button. When the screen be full-displayed, release the upper left button until the normal humidity and temperature values show
on the screen).
B) Remove the sensor protection cap and press the upper left button and right button. simultaneously . “---” will appear
under the screen and “1” will appear on the right side of it. Put the sensor part in the 33% humidity salt bottle for at least 40 minutes.
After 40 minutes, the unit adjusts the value to 33% automatically.
C) Take out the unit and press the upper left and right button simultaneously. “---”appears under the screen and “2” appears
on the right side of it. Put the unit in the 75% standard humidity box for more than 40 minutes. After 40 minutes, the unit adjusts the
value to 75% automatically. The calibration work is finished only after the calibration of two continual values.
The unit must go through two (“1”-->“2”) regular calibrations. In this way, the calibrations are effective. Moreover, the oder of the
calibration values can’t be opposite. Firstly, calibrate in 33% salt bottle, then in the 75% salt bottle. If calibrations are done in 33% salt