 Part # - 3005-31 - Point Sensor Magnetic Door, 418 MHz
Features
- 64-Bit unique ID with 24-bit Digital Counter
- Switch for installation and service mode indication
- Up to 600-foot range
- Transmits immediately on status change
- Up to 100 transmitters can coexist
- Battery lasts from 2 to 5 years
- Very small (1.3” X 2.1” X .6”) ABS Enclosure
- Complies with part 15 of the FCC rules
- Water resistant coating on PCB
- CRC-16 checked Status, ID and counter data
- Internal Loop antenna
- Low Cost
Description
The Point Sensor Magnetic Door wireless transmitter is a battery operated digital
counter sensor with a microprocessor controlled 418 MHz. FCC certified radio transmitter.
The Point Sensor Magnetic Door has an on board time of day clock that allows it
to spend most of the time in a low power quiescent state. At predetermined
time intervals the clock will wake up the onboard microprocessor. Unique serial
number information is read from a Dallas Semiconductor 1-wire digital device, counter
data is read from a 24-bit internal counter register. This information is
combined with a CRC-16 error check and transmitted in a very short data packet that
results in a transmitter on time of only 15 milliseconds. This architecture allows
the Point Sensor Magnetic Door to consume very little energy and a battery life
of 2 to 5 years results.
The Point Sensor Magnetic Door electronics are coated with a conformal material
that provides a moisture barrier against condensation. Submersion in water
is not recommended. A pushbutton switch in the ABS cover allows the user to
activate the service mode. The service switch has three functions: 1) The
Point Sensor Magnetic Door is shipped with the transmitter turned off, anytime the
Point Sensor Magnetic Door is to be shipped the transmitter should be turned off
or placed in a shielded container to prevent interference. Start the Point
Sensor Magnetic Door by a momentarily push of the service switch (you will feel
the button click) the Point Sensor Magnetic Door is started. 2) The service
switch is used as an aid to installation, when the service switch is pushed a data
transmission occurs immediately and a special mark is introduced in the ID field
of the transmitted data packet to indicate which sensor is in service or installation.
3) The service switch is used to put the Point Sensor Magnetic Door in a quiescent
mode (no transmissions and very low power consumption), this is the state the Point
Sensor Magnetic Door is in when you receive it from the manufacturer. Push
and hold the service switch for 5 seconds or more to enter this powered down state.
| Transmission rate |
10-17 seconds random |
| Shelf life with battery installed |
5 Years in quiescent mode (10 years with optional battery) |
| Dimensions (enclosure) |
1.5 W X 2.1 H X .6 D (inches) |
| Weight |
1.5 oz. |
| Operating Temperature |
-40° to 85° C |
| Input |
Switch closure 3.3 volts pulsed |
| Humidity |
0% to 90% non-condensing |
| Battery life with transmissions |
2-5 years with tx period of 10-17 seconds |
| Battery |
3.6 volt Lithium |
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