SharpEye 20/20MPI, Руководство пользователя и по обслуживанию

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SharpEye
TM
IR3 Flame Detector User Guide
30 Built-In-Test
4.3.3 Detector Default Setup
The detector has 5 functions that can be programmed according to the
customer requirement at the factory or at the customer facility using the
software host. Table 10 lists the standard setup (default) that the detector
is programmed with if there are no specific requirements.
Table 10: Default function set up
Detector Default Setup: 20/20MPI-R 20/20MPI-M
Sensitivity 20 20
Delay 3 3
Alarm Latch No No
Automatic BIT Yes Yes
Alarm BIT No No
4.4 Built-In-Test
4.4.1 General
The detector’s Built-In-Test (BIT) checks the following:
 Electronics circuitry
 Sensors
 Window cleanliness
The detector can be set to perform the BIT as:
 Automatically
or
 no BIT
4.4.2 Principles
If the result of a BIT is the same as the current status of the detector
(normal or BIT fault), the detector's status is left unchanged. If the result of
a BIT differs from the current status of the detector, the detector’s status is
changed (from normal to BIT fault or from BIT fault to normal).
Note : In BIT fault status, the detector can continue to detect a fire.
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