ThermoFisher Scientific 146iQ, Instruction Manual

Page: 181 / 302

Troubleshooting
Troubleshooting Guide
Thermo Scientific 146iQ Instruction Manual 6-5
Problem Possible Cause Action
If using a sample particulate filter,
make sure it is not blocked.
Disconnect sample particulate
filter from the sample bulkhead; if
flow increases, replace filter.
Alarm – Intensity Defective detector Replace detector as needed.
Defective DMC board Replace DMC board as needed.
Alarm – Zero Check
(Option) Instrument out of
calibration Recalibrate instrument.
Check gas supply.
Perform a manual calibration.
Alarm – O3 Concentration Concentration has
exceeded range limit Check to ensure range corresponds
with expected value. If not, select
proper range.
Concentration low Check user-defined low set point,
set to zero.
Alarm – Lamp Heater
Current (Photometer) Defective heater Replace heater as needed.
Alarm – Lamp Temp Sensor
Short (Photometer) Defective sensor Replace sensor as needed.
Alarm – Lamp Temp Sensor
Open (Photometer) Defective sensor Replace sensor as needed.
Alarm – Bench Temp
Sensor Open (Photometer) Defective sensor Replace sensor as needed.
Alarm – Bench Temp
Sensor Short (Photometer) Defective sensor Replace sensor as needed.
Alarm – Lamp Connection
(Photometer) Defective lamp Replace lamp as needed.
Alarm – Lamp Short
(Photometer) Defective lamp Replace lamp as needed.
Alarm – Lamp Heater
Current (Ozone) Defective heater Replace heater as needed.
Alarm – Bench
Temperature (Ozone) Dirty fan filter Clean fan filter as needed.
Alarm – Lamp Temp Sensor
Short (Ozone) Defective sensor Replace sensor as needed.
Alarm – Lamp Temp Sensor
Open (Ozone) Defective sensor Replace sensor as needed.
Alarm – Lamp Connection
(Ozone) Defective lamp Replace lamp as needed.
Defective DMC board Replace DMC board as needed.