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6. Installation
1. The dry contact sensor (R718J) has a built-in magnet (as
Figure 1 below), which can be attached to the surface of an iron
object during installation, which is convenient and quick.
In order to make the installation firmer, please use screws
(purchased separately) to fix the device to the wall or other
surface. (as Figure 2 below)
Note: Do not install the device in a metal shielded box or in an
environment surrounded by other electrical equipment to avoid
affecting the wireless transmission of the device.
A diagram that the dry contact sensor (R718J) connecting to a wired smoke sensor.
DC24V+
DC24V-
1
2
Wired smoke sensor
3
4
2. After the dry contact sensor detects the change of the dry
contact state, it will report the data immediately.
3. If the battery voltage is detected that exceeds the change
value during Min Time, the data will be reported immediately.
4. Whether the state of the dry contact is change, a piece of data
will be reported regularly when the MaxTime comes.
Note:
(1) The input of dry contact can only receive signals of a passive
switch. It does not receive analog signals, such as current or
voltage.
(2) When the dry contact is connected, the data status bit is "1".
When the dry contact is disconnected, the data status bit is
"0".
Dry contact sensor (R718J) can be used in the following scenarios:
⚫ Various switches and buttons
⚫ Dry contact output of sensor
⚫ The operating status of the equipment
⚫ State monitoring of doors and windows in home or business
The occasion is necessary to judge the state of the sensor through
the dry contact signal.
External
power supply
Dry contact sensor
Dry contact
10
(R718J)
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