Sensaphone 2800 - Manual (Page 51)

Chapter 4: Zone Programming
49
ALARM LIMITS
The Alarm Limits determine the level at which a temperature or
4–20mA Zone has reached the alarm threshold. The input value
must exceed the Alarm Limit to trip an alarm. Each Zone has a
programmable Low and High Alarm Limit. The default settings are
Low Limit=0 and High Limit=100. The range of programming for
2.8K thermistors is -109° to 115°F (-85° to 57°C). The range of
programming for 10K thermistors is -87° to 168°F (-66° to 76°C).
For zones configured as 4–20mA, the range of programming is
-10,000 to 10,000. To make a value negative, precede the value with
the [RINGS/TAD/*]
key.
NOTE: Only Zones configured as temperature or
4–20mA can have Alarm Limits programmed.
To program the Low Alarm Limit:
1. Press the SET key.
2. Press the LOW LIMIT key.
The 2800 will say “Enter Zone Number.”
3. Press the corresponding Zone key (1–8)).
The 2800 will say “Enter Low Alarm Limit.”