Enmet CP-60 Uživatelský manuál Strana 8

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CP-60 ENMET Corporation
5
3.4 Sensor/Transmitter Connection
Sensor/Transmitters are connected to the CP-60 control unit with two or three-conductor wiring, use the correct oiltight fitting.
Size of wire depends on the distance between the sensor/transmitter and the control unit.
See Recommended Wire Gauge Table below.
2 Wire for Sensors/Transmitter
3 Wire for Sensors/Transmitter
Position Function Position Function
1, V+
Power +24 V
DC
1, V+
Power +24 V
DC
2, G
Not Used
2, G
Power Ground
3, Sig
Signal/Return to Ground
3, Sig
Signal
Recommended Wire Gauge
Distance from Sensor to Control Unit
Recommended Wire Gauge
5000 feet 24 AWG
Greater then 5000 feet Contact Factory
N
OTE
: Sensor Location
Gases have different densities. Some are heavier than air and concentrate at the bottom of a space. Some are lighter than air
and gather at the top. Consider the density of the gas you want the sensor to detect when you install the sensor. Some
examples are given below.
Heavier than Air Gas
Sensor Location
Bottled LP (liquefied petroleum)
Interior wall; 18-24" from floor.
D
O
N
OT
locate directly above or beside gas appliances (ovens,
heaters).
Avoid locating anywhere near a vent or window or near an outside
doorway.
Propane
Butane
Gasoline
Trichloroethylene
Vaporized hydrocarbons
Hydrogen sulfide
Lighter than Air Gas
Sensor Location
Natural gas (methane)
Near ceiling.
D
O
N
OT
locate directly above appliances where it is subject to direct
exposure to heat or steam.
Ammonia
Hydrogen
Same Density as Air Gas
Sensor Location
Carbon Monoxide 4-6 feet above the (generally uniform) floor.
D
O
N
OT
locate in direct air currents of windows, doors, or vents.
If you have a question involving the location of a unit or sensor, please contact your distributor or ENMET personnel. A
technician will analyze the question and recommend a location.
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