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Troubleshooting
Problem...
Check...
- No output
- Check loose
generated
connection
- Check Incorrect
wiring
- Check supply
voltage
- Unstable output
- Check sensor
damage
- Slow response
- Check the sensor
for water leakage or
condensation
- Error in output
- Check the installed
location
- Check the dust,
soil.
3) Replacing the filter:
(1) Prepare filter set (order separately) in advance.
Remove the filter cap and filter by hand.
Loosen
(2) Cover the sensor with the new filter and then put
the new filter cap over.
Filter
Specifications are subject to change without notice.
Building Systems Company
International Business Headquarters
Totate International Building
1-12-19, Shibuya
Shibuya-Ku,Tokyo, 150-8316
URL:http//www.yamatake.com
Rev.2.1 Jun. 2002
Action...
- Tighten the terminal
brock
- Re-wire
- Replace sensor
- 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 sensor
Filter cap (The cap will
remove with the filter inside.)
Filter cap
②
①
(3) Tighten the filter cap.
Tighten
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
output value is increased by turning this volume in
clockwise direction and decreased by turning it coun-
terclockwise. Use referenced humidity meter of ade-
quate accuracy. A digital multimeter is recom-
mended 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.
8
8
Printed in Japan. AB-5961 3H-H (W)
Filter cap
Rough adjustment knob (VR2)
Fine adjustment knob (VR1)
AB-5961
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