Lighthouse REMOTE 3012PN, Operating Manual, Page: 38 / 58

Lighthouse REMOTE-2 PN Series Operating Manual
4-10 248083310-1 Rev 3
Sets the alarm channel to channel 1 or 2.
Type:
<aa1>
Response:
<aa1>Alarm Channel= 1
SET ALARM THRESHOLD
<ab#>
Sets Alarm High count threshold for the configured alarm channel.
Value # must be less than range in order to set the threshold. Set the
value to 0 (zero) to disable alarm.
If the count for the configured alarm channel exceeds the threshold
then:
• The red SERVICE indicator on the instrument blinks.
• The EXTERNAL ALARM relay, described below, is set.
• The alarm alert will be seen on the ASCII terminal as illustrated
next:
Type:
<ab1000>
Response:
<ab1000>Alarm Threshold= 1000 counts
Alarm Alert without Alarm Suppression Example:
Note:
The field bk= 429
in this example is the
"backlight" function which
is a measurement of
scattered light in the
instrument. See
SET_SERVICE_HIGH and
SET_SERVICE_LOW
In this example, the Alarm Suppress is disabled (0).
secs=1: ch1-2: 285, 48 , bk= 429
secs=2: ch1-2: 487, 89 , bk= 429
secs=3: ch1-2: 1699, 1033 , bk= 1049
secs=4: ch1-2: 2572, 1320 , bk= 434
secs=5: ch1-2: 3337, 1575 , bk= 429
Sample: ch1-2: 3337, 1575 Range1= 10000, Range2= 5000.
Alarms: Threshold= 1000, Channel= 1, # in a row=1
secs=1: ch1-2: 615, 228 , bk= 434, alarm alert.