Sensaphone 400 User Manual

Page 98

SENSAPHONE 400 User’s Manual

I. model 400 Detects a Change at the Sensor

Variable factors

Model 400 detects a change in the monitored

condition (from the sensor wired to one of the

zones). This is considered an alert condition, and

does not qualify as a valid alarm at this point.

The condition continues throughout the programmed

Recognition Time. If the condition (or sensor) reverts

to its normal state before the Recognition Time is

reached, no alarm will occur.

Zone Type: (1) An
open circuit closes,
(2) a closed circuit
opens, or
(3) temperature
limits are exceeded.

Recognition Time:
Activated

II. A Valid Alarm is recognized

Variable factors

The condition must persist long enough to meet or

exceed the programmed Recognition Time. When

Recognition Time has expired, but the alert condition

continues, the Model 400 will determine that a valid

alarm exists.
When a valid alarm is determined, Call Delay

is activated, forcing the Model 400 to wait for a

programmed period of time before starting the dial-

out process. Call Delay applies to the period just

prior to dial-out, before the first telephone call is

made.
Call Delay provides the opportunity to cancel a valid

alarm at the Model 400’s installation site, before

dial-out occurs. An audible voice message indicates

which of the zones is in alarm. If on-site personnel

acknowledge the alarm within the Call Delay time,

the Model 400 will not dial out. (Local Voice Mute is

disabled, so that alarm messages can be heard at the

site.)

Recognition Time:
Expired

Valid Alarm:
Exists

Call Delay:
Activated

Alarm Message:
Audible, On-site
Activated

Local Voice Mute:
Disabled