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CO
/ temperature transmitter with relay
2
General
The IAQ-sensor product aSENSE RL is used to measure indoor air carbon dioxide
concentration and temperature in rooms. It is flexible controller with programmable
output for relay control of e.g. mixed air dampers, humidifier and fans. The measured
values are shown on the display. The sensor is designed for wall mounting or
mounting in ventilation ducts.
The unit is designed for connecting to Direct Digital Control (DDC). The linear output
functions are pre-programmed as CO
selected outputs 0-10 V / 2-10 V / 0-20 mA / 4-20 mA. The measuring ranges can be
modified from a PC (Windows) and use of the software UIP (version 5 or higher)
together with the RS232 communication cable.
Figure 1 aSENSE RL
for wall mounting
aSENSE RL
and temperature transmitters with jumper
2
and aSENSE Duct RL for duct mounting with two
types of cable gland
Document
Rev
UMA 149
6
Page
1 (8)
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Summary of Contents for SenseAir aSENSE RL
- Page 1 / temperature transmitter with relay General The IAQ-sensor product aSENSE RL is used to measure indoor air carbon dioxide concentration and temperature in rooms. It is flexible controller with programmable output for relay control of e.g. mixed air dampers, humidifier and fans. The measured values are shown on the display.
- Page 2 FUNCTIONAL DESCRIPTION This part describes the function of the standard configuration of aSENSE RL. It may be re-programmed before or after the installation by a PC and the standard UIP software (version 5 or higher). Out(1) = measuring signal of carbon dioxide concentration lowest value - highest...
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Page 3: Sensor Outputs
> 1000 ppm CO See label See label Open < 900 ppm CO Table I. Default output configurations for aSENSE RL The red LED is lit when the relay output is closed. Formulas for calculation of output values Configuration Output Range... -
Page 4: Output Configurations
Out(2) Connection in position “Voltage” provides 0/2-10VDC output range for Voltage Out(2). Table III. Configuration jumpers for aSENSE RL FUNCTIONAL TEST aSENSE RL Self-diagnostics The system contains complete self-diagnostic procedures. A full system test is executed automatically every time the power is turned on. In addition, constantly during operation, the sensor probes are checked against failure by checking the valid dynamic measurement ranges. - Page 5 Error code and action plan Bit # Error Error description Suggested action code Fatal Error Try to restart sensor by power OFF/ON. Contact local distributor Reserved Algorithm Error. Try to restart sensor by power Indicate wrong EEPROM OFF/ON. configuration. Check detailed settings and configuration with UIP software version 5 and higher.
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Page 6: Maintenance
Calibration bag can be used to produce carbon dioxide free air. The software can be free downloaded from www.senseair.com. The RS232-cable and the zero calibration bag can be ordered from SenseAir. The cable is to be connected to the UART port slide connector (see Fig. 7). For change of control parameters and re-calibration of temperature this PC tool has to be used. -
Page 7: Duct Mounting
When putting the PCB back in the protective housing, the probe must be gently positioned in the sampling tube. Figure 6 The aSENSE RL for duct mounting. The temperature probe is the black body in the sampling tube... - Page 8 EN 61326-1:2006, Class B equipment, Table 1 - Basic immunity test requirements ® SenseAir AB (headquarter) Stationsgatan 12 Box 96 820 60 Delsbo SWEDEN Phone: +46-(0)653 - 71 77 70 Fax: +46-(0)653 - 71 77 89 E-mail: info@senseair.com Web site: www.senseair.com Document Page UMA 149 8 (8)
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