SE-0113
The aSENSE™- VAV is a stand alone controller with built-in sensors for temperature and carbon dioxide. The unit measures both CO2 concentration and temperature in ambient air, transforms the data into analog and digital output signals, which are used for controlling air supply on demand.
The aSENSE™- VAV is for installation in the climate zone or in a ventilation duct.
A common application for aSENSE™- VAV is controlling ventilation in rooms occupied by people. The sensor is flexible and designed to suit many different ventilation strategies. It is a key component for energy-effective, healthy climate control of rooms with varying load like schools, nurseries, auditoriums, theaters, sports centers, etc.
This sensor is a basic component to be used in many different ventilation applications, as well as in industrial or agriculture process controls.
Features
- uses state-of-the-art Non-Dispersive Infrared (NDIR) technology to measure the carbon dioxide (CO2) concentration
- cost-optimized for direct linear control of dampers and speed regulated fans
- contributes to lower energy costs when it is applied in a Demand Control Ventilation (DCV) strategy
- has internal automatic self diagnostics. Maintenance interval > 5 years
- has serial communication port for connection to a PC or a GSM module.
- IP54 Housing
Click here to download the UIP software for aSense.
Specifications
- Operating Temperature Range: 0 - 50 °C
- Maintenance Interval: no maintenance required
Electrical/Mechanical
- Power Input: 24 VAC/VDC ± 20%, 50-60 Hz < 3 Watts average
- Dimensions: 5.59 x 3.35 x 1.88 in
Output
- Linear outputs OUT1 & OUT2: 0/2-10 VDC 0/4-20 mA Rload < 500 OHM
- Linear output OUT4: 0-10 VDC ROUT < 100 OHM, Rload > 5k OHM
- Relay (OUT3): isolated N.O., 1mA/5V up to 1A/50VAC/24VDC.
- Open collector OUT4: in ON/OFF mode: max 0.5A/55VDC (halfwave rectifier for AC)
CO2 Measurement
- Operating Principle: Non-dispersive infrared (NDIR) with Automatic Baseline Correction (ABC)
- Gas Sampling Mode: diffusion
- Accuracy: ± 1% of measurement range ± 5 % of measured value
- Annual Zero Drift: < ±0.3 % of measurement range
- Measurement range: 0 - 3 000 ppm
Temperature Measurement
- Operating Principle: Thermistor
- Measurement Range: -20 to +60 °C
- Accuracy: ± 0.5 °C ; Digital Resolution 0.1 °C (0.01 °C via UART)
Warranty
Data Sheet
Maintenance Instructions
Installation Instructions
IP54 Cover Specifications
