January 2008
5-8 Advanced Programming
Configuring the Low and
Low Low Alarms
To configure the XDP Low and Low Low alarms, access the setup
menu as described on page 5-4 and complete the following steps:
Note: The other six alarm relays listed in the alarm setup menu are
discussed in the next section.
The Low Alarm
At the next prompt, enter the percentage of hydrogen in air that
should trip the low alarm (typically 85.00%).
Range Cal Setup Use the [S] and [T] keys to
select
[Alarms] and press
[ENTER].
4-20mA-Out
Alarms
Alarms Use the [S] and [T] keys to
select
[Low-Alarm] and press
[ENTER].
Low-Alarm
Low-Low-Alarm
Normal-Alarm
Alarms Low-Alarm Use the [
S] and [T] keys to
select
[Trip-Point] and press
[ENTER].
Trip-Point
Test
Fail-Safe
Alarms..Trip-Point Use [
W] and [X] to position the
cursor under the desired char-
acter. Then, use [
S] and [T] to
increment the value. Press
[ENTER] when done.
Trip-Point
xxx.xx
s
Alarms Low-Alarm Use the [S] and [T] keys to
select
[Test] and press [ENTER].
Trip-Point
Test
Fail-Safe