3M W-2806/07006 사용자 지침 - 페이지 16
{카테고리_이름} 3M W-2806/07006에 대한 사용자 지침을 온라인으로 검색하거나 PDF를 다운로드하세요. 3M W-2806/07006 19 페이지. Compressed air filter and regulator panel
3M W-2806/07006에 대해서도 마찬가지입니다: 일반 작동 및 부품 지침 (2 페이지)
페이지 인쇄
TROUBLESHOOTING
Low battery
As the battery voltage declines toward the end of its life, the following indications occur:
a) At 7.0 volts, the amber LOW BATTERY light will come on. Battery replacement is
recommended at this point, but continued operation is still possible.
b) At 6.4 volts, the buzzer will beep at intervals of about 7 seconds.
c) At 5.8 volts, the buzzer will beep at 1-second intervals and the display will go to --.
This malfunction indication will continue until the battery is completely dead.
Problem
CO monitor's LED red and
green lights blink on/off
along with the alarm buzzer
and display shows 'SC'
CO monitor display will not
move from zero '00' when
the sensor is exposed to a
known sample of CO
The CO monitor cannot
be calibrated
The span adjustment cannot
be made when the span gas is
applied (i.e. the reading will
not reach the span gas value)
With zero gas flowing
through the monitor after
approximately one-minute
display reads minus one
(-1) to the far left
Potential Cause
The sensor has internal failure
Poor connection between
sensor pins and circuit
board connections
SPAN adjustment may
be set to zero
Span gas cylinder empty
The sensor has lost sensitivity
Circuit malfunction
The span gas and/or zero
gas bottle(s) may be empty
The sensor has lost sensitivity
The span gas bottle may
be empty
The sensor has lost sensitivity
Zero potentiometer may be
turned counterclockwise all
the way
The sensor has lost sensitivity
15
Corrective Action
Turn monitor off and after
a few seconds turn monitor
back on. Try to calibrate the
monitor. If the monitor will
not calibrate, replace the sensor.
Unplug-Plug circuit board
from sensor pins to make
better contact connection.
Try to calibrate monitor.
If monitor will not calibrate
or 'SC' appears again,
replace sensor.
Recalibrate the monitor
Replace the cylinder
Replace the sensor
Repair is needed
Replace the empty span
and/or zero gas bottle(s)
Replace the sensor
Replace the empty span
gas bottle
Replace the sensor
Adjust the zero potentiometer
clockwise until zero
'00' reached
Replace the sensor