Calibration Errors - Honeywell 5704 Operating Instructions Manual

MAN0448_Issue 13_ 01-2010
005704-M-5001 A03249
CHAPTER 5 - COMMISSIONING AND
MAINTENANCE INSTRUCTIONS
Error
Code
Error
Code
79
78
Error Code Meaning
This provides a warning that the sensor is
detecting a level of gas exceeding the set
operating range of the channel.
IMPORTANT
If configured for latching, the display
and analogue output may not indicate
the true gas concentration when
the measuring range is exceeded.
The reset of a latched signal overrange
warning condition should only be carried
out after checking that the sensor is in
clean (non target gas) air.
5.4

Calibration Errors

Error Code Meaning
Uncalibrated
The uncalibrated message is displayed for
new channel cards that have never been
calibrated.
The channel card should be calibrated and
its operation checked.
Calibration Overdue
The calibration overdue message is
displayed when the pre-configured
calibration interval has expired.
This is a warning message that the sensor
is due for calibration. Once the calibration
has been completed the message will
clear.
If required, this function can be disabled
using the Engineering Interface Software
configuration program.
5-13
5704 Control System
Software Card Fault latch
Version Status Signal
Software Card Fault latch
Version Status Signal
All Non No
Active
All Active No
No
No