HenSistemasHS-EMQA
IAQW/IAQF Indoor Air Quality Transmitter/Controller for VOC and Formaldehyde (CH2O)
Indoor air quality transmitters and controllers in two families. IAQW/IAQD respond to a wide range of airborne pollutants (VOCs): wood, paint and others produced by toluene, cigarette smoke, ammonia odor, CO, alcohol, natural gas and even body odor. IAQFW/IAQFD are dedicated to formaldehyde (CH2O) only.
IAQW/IAQFW models are for rooms; IAQD/IAQFD models are for duct mounting.
What it measures
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Torn between two models?
Ask on WhatsApp- Power supply 16~28VAC/16~35VDC
- Measuring range VOC: 0~2000ppm CO2 equivalent; CH2O: 0~1000ppb
- Accuracy CH2O: ±10%FS@25℃
- Output 0~10VDC/4~20mA (default), RS485/Modbus
- Load resistance ≤500Ω (current output), ≥2kΩ (voltage output)
- Relay 1×SPST, 3A/30VDC, 3A/250VAC
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Overview
Sensors
- VOC (IAQW/IAQD): highly sensitive metal oxide semiconductor gas sensor, with a sensor life of up to 5~7 years.
- Formaldehyde (IAQFW/IAQFD): high-performance electrochemical gas sensor, with a service life of more than 3 years.
- Every sensor draws little power and offers good temperature and humidity compensation.
- Power supply and outputs are protected against overvoltage and reverse polarity, for high reliability and interference immunity.
Technical data
- Measurement: VOC from 0
2000ppm CO2 equivalent with a high-performance metal oxide semiconductor sensor; CH2O from 01000ppb with a high-performance electrochemical sensor, accurate to ±10%FS@25℃. - Power and outputs: runs on 16
28VAC/1635VDC and provides 010VDC/420mA (default) or RS485/Modbus; load resistance is ≤500Ω for the current output and ≥2kΩ for the voltage output. - Relay: 1×SPST, 3A/30VDC, 3A/250VAC.
- Indication (IAQW/IAQFW): optional green/yellow/red LED showing air quality or, alternatively, an optional LCD display with unit and green/yellow/red backlight.
- Conditions: operates at 0
50°C and 095%RH, non-condensing; storage at -20~60°C. - Build: ABS+PC housing with IP30 on IAQW/IAQFW, fireproof ABS housing with IP65 on IAQD/IAQFD; weight ~190g (IAQW/IAQFW) or ~395g (IAQD/IAQFD).
- Approval: CE.
Specifications
| Property | Value |
|---|---|
| Sensor | VOC: high-performance metal oxide semiconductor sensor; CH2O: high-performance electrochemical sensor |
| Power supply | 16~28VAC/16~35VDC |
| Measuring range | VOC: 0~2000ppm CO2 equivalent; CH2O: 0~1000ppb |
| Accuracy | CH2O: ±10%FS@25℃ |
| Output | 0~10VDC/4~20mA (default), RS485/Modbus |
| Display (IAQW/IAQFW) | Optional green/yellow/red LED air quality indication, or optional LCD display with unit and green/yellow/red backlight |
| Load resistance | ≤500Ω (current output), ≥2kΩ (voltage output) |
| Relay | 1×SPST, 3A/30VDC, 3A/250VAC |
| Working environment | 0~50°C, 0~95%RH (non-condensing) |
| Storage temperature | -20~60°C |
| Housing | ABS+PC (IAQW/IAQFW), fireproof ABS (IAQD/IAQFD) |
| Protection | IP30 (IAQW/IAQFW), IP65 (IAQD/IAQFD) |
| Weight | IAQW/IAQFW: ~190g; IAQD/IAQFD: ~395g |
| Approval | CE |
Documents
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