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Point Sensor Pulse Counter 900 900 MHz Transmitter Main Features
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Description: The Point Sensor Pulse Counter 900 wireless transmitter is a battery operated digital counter with a microprocessor controlled 900 MHz. FCC certified radio transmitter. The Point Sensor Pulse Counter 900 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 and 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 very short transmitter on-time. This architecture allows the Point Sensor Pulse Counter 900 to consume very little energy and a battery life of up to 5 years. The Point Sensor Pulse Counter 900 electronics are coated with a conformal material that provides a moisture barrier against condensation. Submersion in water is not recommended. An internal reed switch permits a user to activate the service switch with a magnet. The Sensor is shipped with the transmitter turned off (anytime the Sensor is to be shipped the transmitter should be turned off or must be placed in a shielded container to prevent interference that might cause shipping problems). Start the Sensor by momentarily placing the magnet next to the reed switch as indicated on the product label. When you perform this operation, 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. The reed switch with magnet is also used to put the Sensor in a quiescent mode (no transmissions and very low power consumption). This is the state the Sensor is in when you receive it from the manufacturer. Place the magnet near the reed switch for 5 seconds or more to enter this powered down state. Technical Features:
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