Teledyne 400E Instruction Manual page 7

Model 400E Ozone Analyzer
Instruction Manual
11.1. G T
ENERAL ROUBLESHOOTING
11.1.1. Interpreting Warning Messages ....................................................................................... 244
11.1.2. Fault Diagnosis With Test Functions................................................................................ 247
11.1.3. Using the Diagnostic Signal I/O Function ........................................................................ 248
11.1.4. Internal Electronic Status LED's....................................................................................... 250
11.1.5. Relay Board Status LED'S ............................................................................................... 251
11.2. G F P
AS LOW ROBLEMS
11.2.1. Typical Flow Problems ..................................................................................................... 252
11.3. C
ALIBRATION
11.3.1. Mis-Calibrated................................................................................................................... 254
11.3.2. Non-Repeatable Zero and Span ...................................................................................... 254
11.3.3. Inability To Span - No Span Key ..................................................................................... 255
11.3.4. Inability to Zero - No Zero Key......................................................................................... 255
11.4. O P
THER ERFORMANCE
11.4.1. Temperature Problems..................................................................................................... 255
11.5. S C
UBSYSTEM
11.5.1. AC Mains Configuration.................................................................................................... 257
11.5.2. DC Power Supply ............................................................................................................. 258
11.5.3. I
2
C Bus .............................................................................................................................. 259
11.5.4. Keyboard/Display Interface .............................................................................................. 259
11.5.5. Relay Board ...................................................................................................................... 259
11.5.6. Motherboard ..................................................................................................................... 261
11.5.7. CPU................................................................................................................................... 263
11.5.8. RS-232 Communications ................................................................................................. 263
11.6. R P
EPAIR ROCEDURES
11.6.1. Repairing Sample Flow Control Assembly....................................................................... 265
11.6.2. Disk-on-Chip Replacement Procedure ............................................................................ 267
11.6.3. Replacing The Reference O
11.6.4. Replacing the IZS O
P/N 04316 Rev: B
H
INTS
................................................................................................................. 252
P ............................................................................................................. 254
ROBLEMS
P .............................................................................................. 255
ROBLEMS
............................................................................................................... 257
HECKOUT
.................................................................................................................. 265
Scrubber ........................................................................................ 268
3
........................................................................................... 243
Scrubber............................................................................ 267
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Table of Contents
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