Honeywell 5701, Руководство по эксплуатации

Страница: 167 / 213

6 - 6
MAN0443.P65 Issue 13 Aug 04 5701 Control System
05701-M-5001 A02279
CHAPTER 6 - OPERATING INSTRUCTIONS
4. ENGINEERING CARD
4.1 General
The Engineering Card push-button functions will only operate if a
channel card is selected. See Section 3.3.
Without the Engineering Key fitted to the Engineering Card, the following
Engineering Card push-buttons will not be available:
Inhibit
Zero
Span
1st Span
If any of these push-buttons are pushed, a locked symbol ( ) will be
briefly displayed on the selected channel card message display.
4.2 Timeout
When operating the Engineering Card without an Engineering Key
fitted there is a timeout period of
30 seconds. If no push-buttons are
pressed within the timeout period, the selected channel card will
automatically be deselected.
4.3 Bar Graph Display
When operating the Engineering Card without an Engineering Key
fitted, the selected channel's bar graph display will continue to indicate
the actual gas reading during the operation of the available Engineering
Card functions.
4.4 Catalytic Sensor Bridge Current
The operation associated with the BEAD mA push-button only applies
to catalytic channel cards. Operating this push-button with other types
of channel cards selected has no effect and the warning message
(
XXXX ) is displayed for a short time.
To enter the catalytic sensor bridge current operation, proceed as
follows:
(1) Push and hold the required channel card RESET/SELECT push-
button for approximately 1.5 seconds until the selected icon appears
on the channel display.