Honeywell Midas User Manual page 101

Fault
Description
code
F83 Pyrolyzer fail.
F84
Misc. transmitter fault.
F86
Coprocessor fail
F87
Pyrolyzer temp limits
exceeded
F88
Pyrolyzer heater fail
F89 Pyrolyzer power unreg
F90 Pyrolyzer heater mismatch
F91 HTP module required
NP1/0P3 pyrolyzer module
F92
failure
"Hot" and "Cool" messages are informational events that can be generated under two conditions:
1. Immediately after the detector powers up.
2. When the state changes from cool to hot or hot to cool.
"Hot" means the temperature inside the cartridge is at 40°C or above. "Cool" means the temperature
inside the cartridge is below 40°C. In both cases the event data field will list the actual temperature at
the time of the event.
Condition
Pyrolyzer fails to heat.
Transmitter is defective.
Coprocessor is damaged.
Pyrolyzer temperature exceeded.
Pyrolyzer heater failed.
Target power not achieved within specified time
span.
Different pyrolyzer type required
Check that MIDAS-S-CFX or MIDAS-E-CFX is
installed for the high temperature pyrolyzer
version
Data value: 0x0800
NP1/0P3 pyrolyzer failed to get up to temperature
Data value: 0x1000
NP1/0P3 pyrolyzer flow is out-of-range
Data value: others
NP1/0P3 pyrolyzer internal failure
Midas
Check electrical connection to pyrolyzer. Replace pyrolyzer. (also see
4.3)
Service or replace Midas
Contact Honeywell Analytics Service.
Clean pyrolyzer cooling vents. Contact Honeywell Analytics Service.
Contact Honeywell Analytics Service. Replace the pyrolyzer.
Check the 24 volt power supply. If it is not 24 VDC ±2.4, contact Honeywell
Analytics Service. Replace pyrolyzer.
Contact Honeywell Analytics Service.
Change to HT Pyrolyzer
Replace pyrolyzer heater (only for the 0P3 pyrolyzer)
Check flow connections between Midas and NP1/0P3 pyrolyzer
Contact Honeywell Analytics Service.
11-3
Gas Detector
®
Recovery
.
®
Section