Table 11-1: Warning Messages (Continued) - Teledyne 400E Instruction Manual

TROUBLESHOOTING & REPAIR PROCEDURES
Warning Message
DATA INITIALIZED
FRONT PANEL WARN
REAR BOARD NOT DET
RELAY BOARD WARN
SAMPLE FLOW WARN
SAMPLE PRES WARN
SAMPLE TEMP WARN
PHOTO REF WARNING
O3 GEN TEMP
WARNING
SYSTEM RESET
246

Table 11-1: Warning Messages (Continued)

Fault Condition
Data Storage in iDAS
was erased.
The CPU is unable to
Communicate with the
Front Panel Display
/Keyboard
Mother Board not
detected on power up.
The CPU cannot
communicate with the
Relay Board.
Sample flow rate is <
500 cc/min or >
1000 cc/min.
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).
Sample temperature is
< 10°C or > 50°C.
Occurs when Ref is
<2500 mVDC or
>4950 mVDC.
IZS Ozone Generator
Temp is outside of
control range of 48°C
± 3°C.
The computer has
rebooted.
Model 400E Ozone Analyzer
Possible Causes
§ Failed Disk-on-Chip.
§ User cleared data.
WARNING only appears on Serial I/O COM Port(s)
Front Panel Display will be frozen, blank or will not
respond.
§ Failed Keyboard
2
§ I C Bus failure
§ Loose Connector/Wiring
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
2
§ I C Bus failure
§ Failed Relay Board
§ Loose connectors/wiring
§ Failed Sample Pump
§ Blocked Sample Inlet/Gas Line
§ Dirty Particulate Filter
§ Leak downstream of Critical Flow Orifice
§ Failed Flow Sensor
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
§ Ambient Temperature outside of specified range
§ Failed Sample Temperature Sensor
§ Relay controlling the Bench Heater
§ Failed Relay Board
2
§ I C Bus
§ UV Lamp
§ Relay Board
2
§ I C Bus
§ UV Photo-Detector Preamp
§ No IZS option installed, instrument improperly
configured
§ O3 generator heater
§ O3 generator temperature sensor
§ Relay controlling the O3 generator heater
§ Entire Relay Board
2
§ I C Bus
This message occurs at power on.
If it is confirmed that power has not been
interrupted:
§ Failed +5 VDC power
§ Fatal Error caused software to restart
§ Loose connector/wiring
Instruction Manual
P/N 04316 Rev: B