Chapter Seven: Operation in Setup Mode
How To Set Alarm Trip Points
189
3. Enter the correct alarm letter in the left display.
A. If the display is correct, press the [
ENTER
] key.
B. If the display is incorrect, press one of the alarm keys ([
A
], [
B
], [
C
], or
[
D
]), then
press the [
ENTER
] key.
The system responds by accepting the alarm letter entry, and causing the main display to
blink.
4. Enter the trip point value in the main display (the default is 1000 Torr).
A. If the display is correct, press the [
ENTER
] key.
B. If the display is incorrect, enter the correct trip point, then press the [
ENTER
] key.
The system responds by accepting the trip point, and causing the right display to blink.
5. Turn the alarm On or Off (enable or disable). The default is Off (disable).
A. If the alarm is set correctly, press the [
ENTER
] key.
B. If the alarm is not set correctly, press either the [
ON
/
LEAD
] key
(to enable)
or
the
[
OFF
/
GAIN
] key (to disable), then press the [
ENTER
] key.
The system responds by accepting the alarm status, and causing the center display to
blink.
6. Enter the channel number to associate with the chosen alarm, and select the relay
untripped state. The default channel is channel 1, and the default relay untripped state is
actuated.
Notice, next to the channel number is the letter A, or d. The letter A means the relay
untripped state of the alarm relay is actuated, and the letter d means the untripped state
of the alarm relay is de-actuated. Refer to Overview of Alarms, in the Overview chapter
for more information about relay actuation states.
A. If the display is correct, press the [
ENTER
] key.
B. If the display is not correct, press the correct channel key, (1 through 4) , then use the
arrow keys to toggle the relay actuation state between actuated (A), and deactuated
(d), then press the [
ENTER
] key.
The system responds by accepting the channel number and relay untripped state, and
causing the left display to blink. The system is ready to accept a new alarm letter.
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