Cooper CF2000 Installation Manual page 13

Compatible Equipment
Short Circuit Isolators
Each of the sensors in his range contain an integral short circuit isolator, which operates between the
-VE COM IN terminal and the -VE COM OUT terminal. The isolator operates in conjuction with the
CF2000 Control Panel when a low parallel resistance fault of typically 200W is presented between the
+VE and -VE of the loop wiring.
CAH330 Analogue Heat Sensor,
Heat sensors are suitable for dusty environments or
environments where smoke is likely to be present under
normal operating conditions. The CAH330 can be
programmed to operate in A1R,BS or CS mode of
operation depending on the required application and
sensitivity requirements.
The status LED can be programmed to either be
permanently off under normal conditions or to pulse in
order to confirm that it is in communication with the
CF2000 control panel.
CAB300 Analogue Sensor Base,
Short Circuit Isolation Data
(Integral with each sensor)
Total Loop Resistance for correct
operation of short circuit isolator
Continuous Current allowable through
isolator
Isolator Resistance in closed state
Leakage Current into direct short
circuit with isolator open
Parallel Fault Resistance to be seen
at the Control Panel for isolators to
open
13
Analogue Devices
50Ω (max)
700mA (max)
0.13Ω (max)
13mA (max)
200Ω (typ)