The Probe Reliability Assurance System(PRA-System) developed by Furnace Control Corp assures accurate carbon control by eliminating errors caused by a carbon/ oxygen sensor failure.
HEAT TREATERS Use the Probe Reliability Assurance-System (PRA-System) to improve your carbon control. The only twin probe system for failsafe reliability.
Special Features of the PRA System
- Designed for use with existing Accucarb
Carbon Control System.
- 100% on line monitoring/comparison of
the dual carbon/oxygen probes.
- Provides a built-in standard to
determine probe condition and accuracy.
- Immediate detection of carbon/oxygen
probe degeneration or failure.
- Automatic switching to back-up probe, if
a probe failure occurs.
- Alarm signal to alert maintenance to
replace failed probe.
- With back-up probe in operation, failed
probe may be replaced at a convenient
time (i.e. no more 3rd shift panic)
- Assurance of uninterrupted reliable carbon/oxygen probe input to
existing Carbon Control System
Introducing...
The Probe Reliability Assurance System (PRA-System)
The PRA-System developed by Furnace Control Corp. utilizes two carbon/oxygen probes and a uniquely programmed diagnostic microprocessor instrument. The two oxygen probes are installed in close proximity to each other in the same heat treating furnace. The microprocessor continuously compares the voltage output of the two carbon probes.
When both probes give accurate signal outputs, the PRA microprocessor selects either one of the probes' output for the Carbon Control System. However, when one of the probes fail, the microprocessor selects the output from the accurate probe and sends this signal to the Carbon Control System. An alarm/display then informs the furnace operator that:
1. A probe failure has occurred
2. Identifies which probe has failed.
The failed probe can then be removed from the furnace and replaced at any convenient time. Thus, the PRA-System eliminates problems caused by probe failure and assures uninterrupted, accurate carbon/oxygen probe input to your Carbon Control System.
The PRA-System consists of the following major components:
Model AQ-620-K-I |
Accucarb® Carbon Probe (back-up) |
Model 1.2F-l0 |
Probe Mounting Flange |
Model C20-K-T |
Probe Cable. and Tube Assembly (20 ft) |
Model R-300 |
Reference Air Supply |
Model E906D |
Probe Diagnostic Instrument |
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