User's Manual

V3d Product Specification, Version 2.06
3.1.4 Temperature Sensor
3.1.4.1 Performance
The sensor range shall be from -40°C to +85°C, with accuracy within 2°C across this range.
3.1.4.2 Function
The sensor output shall be sampled by / reported to the microprocessor at the configurable
sensor sampling rate of range from 1 to 60 seconds, even when the V3d is in its lowest power
state. The measured value is to be compared against a stored upper and lower threshold, and
when exceeded, an event message is to be immediately generated and sent to the IMB.
The sensor is re-armed after the sensor level returns from the alarm state. At the point where
the sensor level crosses the threshold back to a typical level the sensor alarm is once again
active.
3.1.4.3 Configuration
All thresholds shall be user programmable, changeable over-the-air through either network or
locally. Also the thresholds can be disabled, such that no event message is generated.
3.1.4.4 Mounting
The temperature sensor is located on a PCB within the enclosure.
3.1.5 Mount Sensor
3.1.5.1 Performance
The sensor is a reed-based, magnetic proximity sensor, implemented as a single pole, single
throw (SPST) normally open contact switch attached to the inner wall of the plastic enclosure.
When the actuator is nearby, defined as within 0.25 and 0.7 inches (6.35 to 17.8 mm), the circuit
is closed. Otherwise the circuit is open, and the enclosure is considered removed from its
mount.
3.1.5.2 Function
The sensor output shall be sampled by / reported to the microprocessor at the configurable
sensor sampling rate of range from 1 to 60 seconds, or edge triggered, even when the V3d is in
its lowest power state.
Following first indication of a possible change of state, the sensor is sampled for an additional
number of seconds, and an event is declared only after all consecutive readings indicate such.
For an unattached mounting event, the V3d immediately generates a logger record and sends
to the IMB. For an attached mounting event, the V3d only generates a logger record. The
mount sensor is immediately re-armed after any event.
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