dol sensors DOL 53 기술 사용 설명서 - 페이지 6
{카테고리_이름} dol sensors DOL 53에 대한 기술 사용 설명서을 온라인으로 검색하거나 PDF를 다운로드하세요. dol sensors DOL 53 9 페이지. Ammonia sensor
페이지 인쇄
5 LED indication
LED indication
YELLOW flashing
slowly
Alternating GREEN
and YELLOW
Constant GREEN
GREEN flashing
quickly
Constant YELLOW
YELLOW flashing
GREEN flashing
Alternating GREEN
and YELLOW
6
Sensor status
Electrical supply faulty or inter-
rupted.
Short circuit in supply cable.
Overvoltage or undervoltage at the
sensing head.
Incorrect voltage (e.g. 230 V AC)
applied, electronics damaged.
Sensing head faulty.
Sensor is warning up to be ready
for measurements, signal level 0
V.
Normal operation.
Concentration measurement in the
test window 40 ppm to 60 ppm, re-
sult of a test with 50 ppm test gas.
Internal fault detected by electron-
ics, signal level 0 V.
Measured concentration below - 5
ppm, below the measuring range,
signal level 0 V.
Measured concentration above
105 ppm outside the measuring
range.
Age monitoring, sensor older than
3 years, service life expired, see
date on sensor rating plate.
Check installation for cable break. Check opera-
tion of the power supply unit of the control unit.
Check electric voltage in the junction box or at
the sensing head with a multi-meter.
Check installation for short circuit.
Check operation of the power supply unit of the
control unit. Check electric voltage at the sensing
head with a multi-meter.
Replace the sensing head.
Replace the sensing head, contact supplier.
No activity. Flashing stops after max. 30 minutes.
No activity. Flashing stops after max. 5 minutes.
Replace the sensing head.
If the fault continues for more than 1 day, replace
sensor.
Ventilate with fresh air.
Replace the sensor.
www.dol-sensors.com
Technical User Guide
DOL 53