8
AB-5963
Troubleshooting
Problem…
Check…
Action…
- No output
generated
- Unstable output
- Check loose
connection
- Check Incorrect
wiring
- Check supply voltage
- Check sensor
damage
- Tighten the terminal
brock
- Re-wire
- Replace sensor
- Slow response
- Error in output
- Check the sensor for
water leakage or
condensation
- Check the installed
location
- Check the dust, soil.
- Remove the unit from
bracket.
Dry the unit with no
power.
- Refer to the
Installation
instructions
- Clean filter
- Replace filter
- Humidity one point
adjustment
- Replace the product
3) Replacing the filter:
(1) Prepare filter set (order separately) in advance.
Remove the filter cap and filter by hand.
(2) Cover the sensor with the new filter and then put
the new filter cap over.
(3) Tighten the filter cap.
4) Humidity one point adjustment
When you find a calibration error in the humidity sen-
sor, re-calibrate the sensor using the adjustment vol-
ume (VR1, VR2) located on the circuit board. The out-
put value is increased by turning this volume in clock-
wise direction and decreased by turning it counter-
clockwise. Use refelenced humidity meter of ade-
quate accuracy. A digital multimeter is recommend-
ed to check the output voltage.
Parts Identification of adjustment volume
Cautions
1. After unpacking, age the transmitter in the ambient
atmosphere for at last 24 hours.
2. To calibrate and adjust, take care the heat from human
body or appliances.
3. When one-point adjustment is done at an environment
where relative humidity is higher than 50 % RH, the
dewpoint temperature accuracy specifications may not
be met to where relative humidity is under 50 % RH.
Yamatake Building Systems Co., Ltd.
Yamatake Corporation
International Business Division
Totate International Bldg.
2-12-19, Shibuya, Shibuya-Ku
Tokyo, 150-8316, Japan
Phone:
81-3-3486-2350
Facsimile:
81-3-3486-2592
Rev. 1.0 Dec. 2000
Printed in Japan. AB-5963 0.5H-H (W)
Specifications are subjects to change without notice.
①
②
Filter cap (The cap will remove
with the filter inside.)
Loosen
Filter cap
Filter
Filter cap
Tighten
Rough adjustment knob (VR2)
Fine adjustment knob (VR1)
