
TROUBLESHOOTING & REPAIR PROCEDURES
Model 400E Ozone Analyzer
Instruction Manual
246
P/N 04316 Rev: B
Table 11-1: Warning Messages (Continued)
Warning Message
Fault Condition
Possible Causes
DATA INITIALIZED
Data Storage in iDAS
was erased.
§
Failed Disk-on-Chip.
§
User cleared data.
FRONT PANEL WARN
The CPU is unable to
Communicate with the
Front Panel Display
/Keyboard
WARNING
only appears on Serial I/O COM Port(s)
Front Panel Display will be frozen, blank or will not
respond.
§
Failed Keyboard
§
I
2
C Bus failure
§
Loose Connector/Wiring
REAR BOARD NOT DET
Mother Board not
detected on power up.
THIS WARNING only appears on Serial I/O COM
Port(s) Front Panel Display will be frozen, blank or
will not respond.
§
Failure of Mother Board
RELAY BOARD WARN
The CPU cannot
communicate with the
Relay Board.
§
I
2
C Bus failure
§
Failed Relay Board
§
Loose connectors/wiring
SAMPLE FLOW WARN
Sample flow rate is <
500 cc/min or >
1000 cc/min.
§
Failed Sample Pump
§
Blocked Sample Inlet/Gas Line
§
Dirty Particulate Filter
§
Leak downstream of Critical Flow Orifice
§
Failed Flow Sensor
SAMPLE PRES WARN
Sample Pressure is <15
in-Hg or > 35 in-Hg
Normally 29.92 in-Hg at
sea level decreasing at
1 in-Hg per 1000 ft of
altitude (with no flow –
pump disconnected).
If Sample Pressure is < 15 in-HG:
§
Blocked Particulate Filter
§
Blocked Sample Inlet/Gas Line
§
Failed Pressure Senor/circuitry
If Sample Pressure is > 35 in-HG:
§
Bad Pressure Sensor/circuitry
SAMPLE TEMP WARN
Sample temperature is
< 10
°
C or > 50
°
C.
§
Ambient Temperature outside of specified range
§
Failed Sample Temperature Sensor
§
Relay controlling the Bench Heater
§
Failed Relay Board
§
I
2
C Bus
PHOTO REF WARNING
Occurs when Ref is
<2500 mVDC or
>4950 mVDC.
§
UV Lamp
§
Relay Board
§
I
2
C Bus
§
UV Photo-Detector Preamp
O3 GEN TEMP
WARNING
IZS Ozone Generator
Temp is outside of
control range of 48
°
C
±
3
°
C.
§
No IZS option installed, instrument improperly
configured
§
O3 generator heater
§
O3 generator temperature sensor
§
Relay controlling the O3 generator heater
§
Entire Relay Board
§
I
2
C Bus
SYSTEM RESET
The computer has
rebooted.
This message occurs at power on.
If it is confirmed that power has not been
interrupted:
§
5 VDC power
§
Fatal Error caused software to restart
§
Loose connector/wiring
Содержание 400E
Страница 12: ...M400E DOCUMENTATION Model 400E Ozone Analyzer Instruction Manual 12 P N 04316 Rev B INTENTIONALLY BLANK ...
Страница 16: ...M400E DOCUMENTATION Model 400E Ozone Analyzer Instruction Manual 16 P N 04316 Rev B INTENTIONALLY BLANK ...
Страница 46: ...Frequently Asked Questions Model 400E Ozone Analyzer Instruction Manual 46 P N 04316 Rev B INTENTIONALLY BLANK ...
Страница 184: ...CALIBRATION PROCEDURES Model 400E Ozone Analyzer Instruction Manual 184 P N 04316 Rev B INTENTIONALLY BLANK ...
Страница 204: ...EPA Protocol Calibration Model 400E Ozone Analyzer Instruction Manual 204 P N 04316 Rev B INTENTIONALLY BLANK ...
Страница 216: ...MAINTENANCE SCHEDULE PROCEDURES Model 400E Ozone Analyzer Instruction Manual 216 P N 04316 Rev B INTENTIONALLY BLANK ...
Страница 294: ...Model 400E Ozone Analyzer Instruction Manual 2 04404 Rev B INTENTIONALLY BLANK ...