SenseAir aSENSE User Manual
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SenseAir aSENSE User Manual

Co2 / temperature transmitter
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CO

General

The IAQ-sensor product aSENSE is used to measure indoor air carbon dioxide concentration and
temperature in rooms. The aSENSE is available both with and without display, (LCD). Both are
available for wall mounting as well as for duct mounting.
The unit is designed for connecting to Direct Digital Control (DDC). The linear output functions are pre-
programmed as CO 2 and temperature transmitters with jumper selected outputs 0-10 V / 2-10 V / 0-
20 mA / 4-20 mA. The measuring ranges can be modified from a PC (Windows NT, XP, 7) and use of
the software UIP (version 5 or higher) together with the RS232 communication cable.
User Manual
aSENSE
/ temperature transmitter
2
Figure 1 aSENSE for wall mounting and duct mounting
Document
Rev
UMA0139
7
Page
1 (6)

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Summary of Contents for SenseAir aSENSE

  • Page 1 General The IAQ-sensor product aSENSE is used to measure indoor air carbon dioxide concentration and temperature in rooms. The aSENSE is available both with and without display, (LCD). Both are available for wall mounting as well as for duct mounting.
  • Page 2 0-2000 ppm CO See label See label Out(2) 0-10VDC 0-50 See label See label 32-122 Table I. Default output configurations for aSENSE Formulas for calculation of output values Configuration Output Range Formula for calculation 0─10 VDC 0─2000ppm CO value = Volt/10*2000 0─50...
  • Page 3 Voltage Please note! Temperature measurements accuracy is valid only for units configured in voltage outputs mode. Table 3. Configuration jumpers for aSENSE 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 4 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. 5). For change of control parameters and re-calibration of temperature this PC tool has to be used.
  • Page 5 When putting the PCB back in the protective housing, the probe must be gently positioned in the sampling tube. Figure 3 aSENSE printed circuit board Document Page...
  • Page 6 Figure 4 The aSENSE for duct mounting. The temperature probe is the black body in the sampling tube. Figure 5 Terminals and jumpers on aSENSE. The darker positions are default settings. The start point jumper is not mounted on some models.

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