Alarm Relay Events - Emerson OCX 8800 Instruction Manual

Instruction Manual
IM-106-880, Rev 1.0
January 2007

ALARM RELAY EVENTS

Table 8-2. Alarm Relay
Event Groups
The 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, Alarm Relay Event
Groups.
Alarm Relay Event
In Calibration
O Temperature Error
2
Heater Failure
O Sensor Error
2
Calibration Failure
Calibration Warning
Board Temperature High
Unit Failure
Sample Block
Temperature Error
COe Sensor
Temperature Error
Power Input Error
All Alarms
Alarms/Conditions
Calibration in progress
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)
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)
Oxygen sensor resistance high (O2 Sensor R High)
Oxygen sensor disconnected (O2 Sensor Open)
Calibration failed (Cal Failed)
Calibration warning (Cal Warning)
Electronics temperature maximum exceeded (Board Temp Hi)
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 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)
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)
Any alarm
OCX 8800
8-11