Bosch FCS-LWM-1, Installation Manual

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14 en FCS-LWM-1
F.01U.028.512 | A2 | 2007.03 Bosch Security Systems
DIFF TIME / DIFF ALARM calibration switch setting
The DIFFALARM features two 16-position DIFF TIME and DIFF ALARM switches that can be
adjusted separately. LWM-1 can be used for grades A1, A2, B and C.
The table below contains recommendations for special applications.
Technichal Data
Mechanics
Electrical
Application DIFF TIME DIFF ALARM Response grade
Underground installation
(no road tunnels) 5
5
5
5
5
4
8
9
A1 (blue cable only)
A1 (black cable only)
A2
B
Installation on concrete ceilings
and other thermally
non-conductive material above
ground, out of direct sunlightg 5
5
5
5
6
5
4
8
9
13
A1 (blue cable only)
A1 (black cable only)
A2
B
C
Installation on insulated steel roof
or metal container, out of direct
sunlight 5
5
5
5
6
5
4
8
9
13
A1 (blue cable only)
A1 (black cable only)
A2
B
C
Installation on non-insulated steel
roof or in direct sunlight 5
6
9
13
B
C
Road tunnel 5
5
5
5
6
5
4
8
9
13
A1 (blue cable only)
A1 (black cable only)
A2
B
C
i
NOTICE!
If a false alarm is triggered by the DIFF ALARM, proceed as follows:
– Shorten the sensor cable for each control unit
– Reduce the response grade, e.g. from A1 to A2
Housing material ABS
Overall dimensions 200 mm x 120 mm x 80 mm (W x H x D)
Weight approx. 550 g
Displays Green LED: in operation, continuously lit
Red LED: ALARM DIFF, continuously lit
Red LED: ALARM MAX, continuously lit
Yellow LED: malfunction, flashing light
Test keys 2 x for simulating alarm, malfunction and LED test
Protection type IP 65
Color Gray, similar to RAL 7035
Temperature range - 20 °C bis + 50 °C
Voltage 10 - 30 V DC
Standby current consumption Max. 25 mA (with 24 V)
Current consumption with DIFFALARM/MAX ALARM Max. 25 mA (with 24 V)
Current consumption with malfunction Max. 15 mA (with 24 V)
Switch-on current < 100 mA (with 24 V)