Emerson Rosemount OCX 8800, Instruction Manual

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Instruction Manual
IM-106-880C, OI
Alarm Relay Events
April 2017
Alarm Relay
Events
17
7
Alarm Relay Event Alarms/Conditions
8.5 Alarm Relay Events
The Hazardous Area OCX 8800 contains an alarm relay that can be configured to activate on one of twelve different
groups of events. These event groups, and the conditions that trigger them, are listed in Table 8-2 .
Table 8-2 Alarm Relay Event Groups
In Calibration Calibration in progress
O
2
Temperature Error Oxygen sensor heater temperature low (O2 Temp Low)
Oxygen sensor heater temperature high (O2 Temp Hi,
O2 Temp Very Hi)
RTD excitation current error (Ref Curr Err)
Heater Failure Oxygen sensor heater could not reach final temperature
(O2 HTR Failure)
Combustibles sensor heater could not reach final temperature (COe Htr Failure)
Sample Block sensor heater could not reach final temperature (SB Htr Failure)
O
2
Sensor Error Oxygen sensor resistance high (O2 Sensor R High)
Oxygen sensor disconnected (O2 Sensor Open)
Calibration Failure Calibration failed (Cal Failed)
Calibration Warning Calibration warning (Cal Warning)
Board Temperature High Electronics temperature maximum exceeded (Board Temp Hi)
Unit Failure Any non-recoverable or heater relay off alarm (O2 Temp Hi,
O2 Temp Very Hi, COe Temp Hi, COE Temp Very Hi,
SB Temp Hi, SB Temp Very Hi, O2 Htr Ramp Rate,
COe Htr Rmp Rate, SB Htr Ramp Rate, O2 TC Shorted,
O2 TC Reversed, COe TC Shorted, COe TC Reversed,
SB TC Shorted, SB TC Reversed, ADC Failure,
ADC Ref Error, Board Temp Hi, EEPRM Chksm Fail,
Line Freq Error, Line Voltage Low, Line Voltage Hi,
Htr Relay Failed, Out Brd Fail)
Sample Block
Temperature Error
COe Sensor
Temperature Error
Sample block heater temperature low (SB Temp Low)
Sample block heater temperature high (SB Temp Hi,
SB Temp Very Hi)
RTD excitation current error (Ref Curr Err)
Combustibles sensor heater temperature low (COe Temp Low)
Combustibles sensor heater temperature high (COe Temp Hi, COe Temp Very Hi)
RTD excitation current error (Ref Curr Err)
Power Input Error AC power line frequency out of usable range (Line Freq Err)
AC power line voltage below minimum (Line Voltage Low)
AC power line voltage above maximum (Line Voltage Hi)
All Alarms Any alarm