sauermann SI-AQ VOC, User Manual

Page: 34 / 42

Page 34 of 42
CHAPTER 13
BASIC TROUBLESHOOTING
ZERO ERRORS
Channel Possible Causes Resolution
(Electrochemical sensors)
CO
NO
NO
2
SO
2
H
2
S
O
2
CH
2
O
Sensor has been recently exposed to
gas and has not yet returned to zero. Purge for 10 minutes with fresh air,
monitor sensor voltage, and re-zero.
Insufficient Warm Up Allow the sensors to warm up after 10
minutes
Incorrect ZERO calibration Repeat ZERO cal in fresh air or with ZERO
AIR cylinder
Pump Failed Check pump flow, if pump failed replace
Battery was dead, sensor has
destabilized. Charge battery, wait up to 24 hours for
sensors to stabilize, and re-zero.
Sensor cell life has expired. Call SAUERMANN replacement.
(PID sensors)
VOC Sensor has been recently exposed to
gas and has not yet returned to zero. Purge for 10 minutes with fresh air,
monitor sensor voltage, and re-zero.
Battery was discharged, sensor has
destabilized. Charge battery, wait up to 24 hours for
sensors to stabilize, and re-zero.
Sensor cell life has expired. Call for a replacement.
Temperature Thermocouple Thermocouple is not connected Check electrical connections running to
the Probe
Infrared CO
2
No response from infrared system Zero period must be at least 45 seconds.
Zero the instrument again with a
cylinder ZERO AIR
.
Infrared system is reporting error
code Infrared system may need maintenance.
Velocity Velocity Probe/Pitot Tube is not
connected Check Probe and connections.
Bluetooth
®
connection failure
Connection Failed Redo connection Process
Monitor will not turn on.
(Screen is off) Battery is discharged.
Plug in the charger. Monitor should turn
on.
Battery is not charging. Check the charger and jack. Check the
case for excessive heat.
Internal initialization problem. Reset the monitor.
Monitor turns on but screen is blue or
faded. Internal initialization problem. Reset the monitor.
Monitor is overheating. Unplug charger.
Turn on & off to reinitialize.