AQ2O-BD2AABD
Details
Details
Senva AQ2O-BD2AABD Outdoor Dual-Channel CO2/RH/Temp Sensor, BACnet/Modbus, OLED
Communicates over BACnet MS/TP or Modbus RTU on 3-wire RS-485 (switch selectable).
Includes a solid-state relay (1A at 30 VAC/DC, NO or NC selectable) that can trip on a CO2, RH, or temp setpoint, or air quality.
Needs 16-30 VDC or 24 VAC; one side of the transformer secondary is tied to signal common, so a dedicated transformer is recommended.
Key Features
- CO2 range 0-2000 ppm default, programmable up to 10,000 ppm
- 1.5 in. color OLED display
Product Specifications
| Manufacturer | Senva |
|---|---|
| Model | AQ2O-BD2AABD |
| Mounting | Outdoor |
| Output type | BACnet/Modbus (RS-485) |
| CO2 | Dual-channel CO2 sensor (NDIR) |
| Relative humidity | 2% RH sensor |
| TVOC | None |
| Advanced sensors | None |
| Temperature | Transmitter |
| Display | OLED display |
| Power supply | 16-30 VDC/24 VAC, 3.5W nominal, 4W max |
| Power wiring | One side of transformer secondary is connected to signal common; dedicated transformer recommended |
| Display type | 1.5 in. organic LED display, 128x128, color |
| Protocol | BACnet MS/TP or Modbus RTU |
| Connection | 3-wire RS-485 with isolated ground |
| Data rate | 9600, 19200, 38400, 57600, 76800, 115200 (switch selectable) |
| Address range | 0-127 |
| Relay | Solid-state, 1A @ 30 VAC/DC |
| Relay polarity | NO/NC (selectable) |
| Relay source | CO2 setpoint, RH setpoint, temp setpoint, air quality, off (selectable) |
| CO2 accuracy | +/-(30 ppm + 3% of reading) 0-2000 ppm; +/-(50 ppm + 3% of reading) 2000-5000 ppm; +/-(100 ppm + 10% of reading) 5000-10000 ppm |
| CO2 drift with ABC disabled | 5 ppm/month |
| CO2 sensor type | Non-dispersive infrared (NDIR) |
| CO2 resolution | 1 ppm |
| CO2 range | 0-2000 ppm default, programmable up to 10,000 ppm |
| CO2 response time | 90 s to 90% reading |
| CO2 sample rate | 1 s |
| CO2 compensation | Temperature and barometric pressure; barometric pressure readable over comms |
| RH sensor type | Digital CMOS |
| RH accuracy | +/-2% over 0 to 80% RH |
| RH resolution | 0.05% RH |
| RH response time | 30 s (63% of reading at 77 deg F (25 deg C), 197 fpm (1 m/s) airflow) |
| RH sample rate | 3 s |
| RH operating range | 0 to 100% RH (non-condensing) |
| RH operating conditions | 41 to 140 deg F (5 to 60 deg C) @ 20% to 80% RH |
| Temperature sensor type | Silicon band-gap |
| Temperature nominal accuracy | +/-0.54 deg F (0.3 deg C) (operating range) |
| Temperature maximum accuracy | +/-0.9 deg F (0.5 deg C) (at 77 deg F (25 deg C)), +/-1.8 deg F (1.0 deg C) |
| Temperature resolution | 0.02 deg F (0.01 deg C) |
| Temperature response time | 30 s |
| Temperature sample rate | 3 s |
| Operating temperature | -4 to 122 deg F (-20 to 50 deg C) |
| Operating humidity | 0-95% non-condensing |
| Enclosure material | ABS/polycarbonate |
| Dimensions | 7.5 in. H x 4.4 in. W x 2.1 in. D |
| Conduit opening | Tapped 1/2 in. NPT |
| Enclosure rating | IP43 or NEMA 3R |
| Field-replaceable sensors | RH, temp, and CO2 |
| Replacement CO2 element | AQS-D CO2 |
| Warranty | 7 years limited; 3 years on CO2 sensor; 2 years on all other sensors |
| Compliance | CE, RoHS |
| Country of origin | USA |