DAITEM 221-21 Series Manual page 108

8.4 Testing loop n° 1
(example 1: flood probe type technical detector)
The LED indicator lamp comes on in red each time the loop is
activated.
To check the flood probe is set for detection:
1. press the test button once,
2. activate the flood probe (activate the NO contact).
The test LED indicator lamp will come on in red,
3. de-activate the flood probe (NO contact open).
The test LED indicator lamp will go out.
Summary table: for operation with either loop
Contact type
NC external contact(s)
OR
built-in contact
NO external contact(s)
108
8.5 Testing loop n° 2
(example 2: ON (arm)/OFF (disarm) command)
The LED indicator lamp comes on in green each time the loop is
activated.
To check the automatic ON (arm)/OFF (disarm) command has been
taken into account:
1. press the test button once,
2. activate the ON (arm)/OFF (disarm) command (activate the NC
contact). The test LED indicator lamp will come on in green,
3. de-activate the ON (arm)/OFF (disarm) command (NC contact
closed). The test LED indicator lamp will go out.
Loop status
open
closed
open
closed
LED indicator lamp status
red (for loop n° 1)
green (for loop n° 2)
OFF
OFF
red (for loop n° 1)
green (for loop n° 2)