Instruction Manual
OCX 8800
ALARM RELAY EVENTS 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
Table
Event Groups
Alarm Relay Event | Alarms/Conditions | |
In Calibration | Calibration in progress | |
|
| |
| Oxygen sensor heater temperature low (O2 Temp Low) | |
O2 Temperature Error | 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) | |
Heater Failure | Combustibles sensor heater could not reach final temperature | |
(COe Htr Failure) | ||
| ||
| Sample Block sensor heater could not reach final temperature | |
| (SB Htr Failure) | |
|
| |
O2 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) | |
|
| |
| Any | |
| 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, | |
Unit Failure | 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 | Sample block heater temperature high (SB Temp Hi, | |
Temperature Error | SB Temp Very Hi) | |
| RTD excitation current error (Ref Curr Err) | |
|
| |
| Combustibles sensor heater temperature low (COe Temp Low) | |
COe Sensor | Combustibles sensor heater temperature high (COe Temp Hi, | |
Temperature Error | COe Temp Very Hi) | |
| RTD excitation current error (Ref Curr Err) | |
| AC power line frequency out of usable range (Line Freq Err) | |
Power Input Error | AC power line voltage below minimum (Line Voltage Low) | |
| AC power line voltage above maximum (Line Voltage Hi) | |
|
| |
All Alarms | Any alarm | |
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