Honeywell 5701, Руководство по эксплуатации

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CHAPTER 3 CONTROLS AND FACILITIES
MAN0443.P65 Issue 13 Aug 04 5701 Control System
05701-M-5001 A02279
2.4 Reset/Select Push-button
The front panel RESET/SELECT push-button provides four functions
depending upon how it is operated:
a. Alarm Reset
The RESET/SELECT push-button, when pressed momentarily, resets
any latched alarm, non active alarms, faults, warning or information
messages, clears the display peak reading indicator and will
acknowledge an update if such a condition is present.
Note: 'Non active alarms' describe the occasion where the alarm condition
has cleared but the alarm is still indicated due to latched
information. For non-latched setups the indicated alarms will clear
automatically when the alarm condition clears.
b. Channel Select
The RESET/SELECT push-button, when pressed for approximately
1.5 seconds, selects the control card for operations controlled from
the Engineering Card.
c. Extended Reset
The RESET/SELECT push-button, when pressed continuously for
five seconds:
i. Clears the channel maximum and minimum gas readings.
ii. Resets any active short term (STEL) and long term (LTEL)
exposure alarms clearing the timer to zero.
iii. For active time delay functions, activates any relay with
impending trigger and clears any relay being held.
d. Channel Deselect
The RESET/SELECT push-button, when pressed momentarily while
a control card is selected, deselects the control card from the
Engineering Card functions.
Note: The control card may also be deselected by pressing the key.