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MAN0448_Issue 13_01-2010
005704-M-5001 A03249
CHAPTER 6 - OPERATING INSTRUCTIONS
3.
CONTROl CARD
3.1
Reset
To reset a channel control card, briefly push and release its front panel
RESET/SElECT push-button.
This will:
a.
Reset all latched non-active alarms or faults associated with each
channel of the control card.
b.
Cancel all latched and non-active warning or information
messages.
c.
Reset the peak reading display.
d.
When active, acknowledge any update function .
e.
Clear the attention lamp indication.
3.2
Extended Reset
Pressing the RESET/SElECT push-button continuously for
approximately five seconds will perform an extended card reset. During
this period the selected icon will flash on and off, and when the flashing
stops the reset will be complete.
The extended reset performs the following functions:
a.
Maximum and Minimum Readings
The maximum and minimum gas readings available via the
engineering printout facility are cleared.
b.
TWA Alarms
When exposure alarms are configured, the active short term (STEL)
or long term (LTEL) exposure alarms are cleared and the exposure
timer is reset.
Note: Only channels with active alarms are affected by the extended
reset. The exposure calculations on other channels may be reset
using the procedure outlined in Section 3.3.
6-4
5704 Control System
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