3
Temperature Sensor Description
The temperature sensor (also referred to as the sensor in this guide) is a wireless, energy
harvesting sensor that monitors room temperature in the range of 0-40°C (32° - 104°F)
and relative humidity in the range of 0-100% . The sensor is intended for indoor use only.
Some models have a temperature set point knob and/or a fan speed slide switch. These
options provide the user an interface to manually adjust how the temperature control
operates.
A button on the lower right edge of the sensor body can be used to invoke an occupancy
event (for RTS-2HS models) or to go into test mode (when the button is held down, see
“Test Operating Modes”).
The temperature sensor transmits to a receiver which is typically a device that is
programmed to provide temperature control in the space that the sensor is monitoring
for closed loop temperature control. The sensor and receiver must be within range,
preferably in the same room and installed within 50’ (15.2 m) of each other. For
applications exceeding 50’ (15.2 m) range, greater care must be taken to insure proper
reception of the sensors transmissions at the receiver, refer to sections “Test Operating
Modes” and ‘Installing Wireless Devices”.
Even with a brief exposure to light the sensor will operate; however for best results the
sensor should be mounted in a location with exposure of 4 hours of natural or artificial
light on a daily basis.
The temperature sensor transmits status telegrams that contain the information defined
within a equipment profile.
The temperature sensor supports the following profiles:
• A5-02-05: Temperature Sensor
•
A5-04-01: Temperature Humidity Sensor
•
A5-10-03: Temperature Temperature Set Point Control
•
A5-10-19: Tempe Hu Set Point + Fan Speed + Occupancy Button.
The valid ranges for each data element:
•
Temperature: 0 - 40°C, (32° - 104°F)
•
Temperature Set Point: offset scale 0-250
•
Humidity Sensor: 0 -100% RH
•
Fan Speed Switch: Auto, OFF, Low (1) Med (2), High (3)
•
Occupancy Button: Occupied
Temperature Sensing Operation
Temperature and Humidity Monitoring
- The temperature sensor will record
the temperature, temperature set point and humidity values* every 10 seconds
(sample period) when there is approximately 100 lux (10 foot-candles) available.
If there is less than 100 lux (10 fc), the sample period will increase to 100 seconds.
After 24 hours at < 15 lux (1.5 fc) the sample period will increase to 200 seconds.
*Assuming sufficient storage charge to operate.
Temperature Set Point
- Users can adjust the temperature set point by rotating
the knob counterclockwise to lower the set point value; clockwise to increase
the set point value.
The receiving temperature control equipment must scale the set point range to
values that are applicable for the application.
Fan Speed Switch
- Users can adjust the fan speed switch by sliding the switch to
a setting: Auto, OFF, Low (1) Med (2), High (3).
