Fault Isolation
April 2017
Instruction Manual
IM-106-880C, OI
17
4
Fault
Isolation
Flash PROM failure
Replace electronics package.
O2 Temp Low (Oxygen sensor heater temperature low, < 710
ºC)
Probable Cause
Recommended Corrective
Action
High noise or voltage fluctuations in power Check power supply for line noise or voltage fluctuations. Install filter power line
supply
kit (PN 6A00171G01) or high quality line filter for input power.
COe Temp Low (Combustion sensor heater temperature low, < 290 ºC)
Probable Cause
Recommended Corrective Action
High noise or voltage fluctuations in power Check power supply for line noise or voltage fluctuations. Install power line filter
supply
kit (PN 6A00171G01) or high quality line filter for input power.
SB Temp Low (Sample block heater temperature low, < 150
ºC)
Probable Cause
Recommended Corrective
Action
High noise or voltage fluctuations in power Check power supply for line noise or voltage fluctuations. Install power line filter
supply
kit (PN 6A00171G01) or high quality line filter for input power.
Line Freq Error (AC power line frequency out of usable range, < 45 Hz or > 66 Hz)
Probable Cause
Recommended Corrective Action
Electronics package failure
Check power supply voltage and compare with line voltage. Replace electronics
package if they do not agree within 5%.
Board Temp Hi (Electronics temperature maximum exceeded, > 85 ºC)
Probable Cause
Recommended Corrective Action
EEPRM Chksm Fail (Non-volatile parameter storage corrupted)
Probable Cause
Recommended Corrective Action
Line Voltage Low (AC power line voltage below minimum, < 85 VAC)
Probable Cause
Recommended Corrective Action
Electronics housing exposed to high
ambient temperature
Insulate housing from source of high temperature and/or install cooling fan to
remove heat from housing. Perform Reset procedure in
Section 3,
Configuration and Startup
to continue operation.
Unit powered down during calibration
parameter storage
Perform Reset procedure in Section 3, Configuration and Startup. Recalibrate
the OCX and check/trim analog outputs.
Sensor housing exposed to high wind and/
or extreme cold temperatures
Install sensor housing flange insulator (PN 6P00162H01).
Sensor housing exposed to high wind and/
or extreme cold temperatures
Install sensor housing flange insulator (PN 6P00162H01).
Sensor housing exposed to high wind and/
or extreme cold temperatures
Install sensor housing flange insulator (PN 6P00162H01).
High noise or voltage fluctuations in power
supply
AC power line frequency is outside the
usable range of the OCX universal power
supply
Check power supply for line noise or voltage fluctuations. Install power line filter
kit (PN 6A00171G01) or high quality line filter for input power.
Correct power supply frequency. AC power line frequency must be between 50
and 60 Hz.
Electronics package failure
Check power supply frequency with a calibrated oscilloscope or frequency meter
and compare with line frequency. Replace electronics package if they do not
agree within 1 Hz.
High noise or voltage fluctuations in power
supply
Check power supply for line noise or voltage fluctuations. Install power line filter
kit (PN 6A00171G01) or high quality line filter for input power.
Table continued on next page
Содержание Rosemount OCX 8800
Страница 2: ......
Страница 41: ...Instruction Manual IM 106 880C OI Section 2 Installation April 2017 Section contents 17 ...
Страница 192: ...Section 7 Foundation Fieldbus April 2017 Instruction Manual IM 106 880C OI 16 6 About AMS and DeltaV Software ...
Страница 205: ...Alarm Relay Events April 2017 Instruction Manual IM 106 880C OI 17 8 Alarm Relay Events ...
Страница 251: ...Replace Tube Fittings April 2017 Instruction Manual IM 106 880C OI 22 4 Install Tube Fittings ...
Страница 259: ...Section 10 Replacement Parts April 2017 Instruction Manual IM 106 880C OI 23 2 O2 Cell and Heater Strut Assembly ...
Страница 261: ...Instruction Manual IM 106 880C OI Safety Data April 2017 Appendix contents 233 ...
Страница 263: ...Instruction Manual Safety Data IM 106 880C OI April 2017 Safety Instructions 235 ...
Страница 267: ...Instruction Manual Safety Data IM 106 880C OI April 2017 Safety Instructions 239 ...
Страница 271: ...Instruction Manual Safety Data IM 106 880C OI April 2017 Safety Instructions 243 ...
Страница 273: ...Instruction Manual Safety Data IM 106 880C OI April 2017 Safety Instructions 245 ...
Страница 275: ...Instruction Manual Safety Data IM 106 880C OI April 2017 IMPORTANT Safety Instructions 247 ...
Страница 277: ...Instruction Manual Safety Data IM 106 880C OI April 2017 Safety Instructions 249 ...
Страница 279: ...Instruction Manual Safety Data IM 106 880C OI April 2017 Safety Instructions 251 ...
Страница 298: ...SPA with HART Alarm April 2017 Instruction Manual IM 106 880C OI 27 2 Configuration Calibratio n ...
Страница 300: ...Instruction Manual IM 106 880C OI Index April 2017 Manual index 27 4 ...
Страница 304: ...Index April 2017 Instruction Manual IM 106 880C OI 27 8 Manual index ...
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