Power Supply |
Non-Display | 16-30VDC/24VAC(1), 3.5W nominal, 4W max. |
Interface | 1.5" Natural LED Display, 128x128, color |
Protocol Output |
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 |
Type | Solid-state output, 1A at 30VAC/DC, N.O. |
Polarity | NO/NC (selectable) |
Source | CO2 setpoint, RH setpoint, Temp setpoint, TVOC setpoint, PIR motion detection, Air Quality, off (selectable) |
CO2 |
Type | Non-dispersive Infrared (NDIR) |
CO2 Sensor | Dual Channel CO2 |
Accuracy | ±(30ppm + 3% of reading) (400-2,000ppm), -10-50ºC, 0-85%RH±(50ppm+ 5% of reading) (2,000-5,000ppm), -10-50ºC, 0-85%RH>5,000ppm consult factory |
Resolution | 1 ppm |
Range | 0-2,000 PPM (Default) (Programmable up to 10,000ppm) |
Response time | 90 seconds to 90% reading |
Sample rate | 1s |
Temp and Pressure Compensation | Yes, barometric pressure readable over comms |
Relative Humidity |
Type | Digital CMOS |
Accuracy(2) | 2% models, +/-2% over 0 to 80%RH range |
Resolution | 0.05%RH |
Response time (3) | 30s |
Sample rate | 3s |
Operating range | 0 to 100%RH (non-condensing) |
Operating conditions (4) | -4 to 140oF (-20 to 60° C) at RH>90%; -4 to 176oF at RH=50% |
Temperature Transmitter |
Type | Silicon Band-gap |
Temperature Sensor | 10K Type 2 Thermistor |
Nominal Accuracy | ±0.3° C (operating range) |
Maximum Accuracy (2) | ±0.5° C (at 25° C), ±1.0° C |
Resolution | 0.1° C |
Response time | 30s |
Sample rate | 3s |
TVOC |
Type | MOS |
Gas | Total VOC |
Formaldehyde CH2O Sensitivity | Responsive to Formaldehyde concentrations 50-1000 ppb |
Range | 0-32,000 µg/m3 (Display may be programmed to show PPB) |
Response Time | <10s |
Accuracy (5) | ±20µg/m3 + 15% at 1 to 500µg/m3 (typical) |
Output | 0-2,000 µg/m3 (default) programmable up to 32,000 µg/m3 |
PMx |
Type | Optical |
Size Range | PM1.0, PM2.5, PM4.0, PM10.0 |
Scale | 0-1,000 µg/m3 |
Lower detection limit | 0.3 µm |
Precision | ±10 µg/m3 (0-100µg/m3); ±10% (100-1,000 µg/m3) |
Long-Term Drift | ±1.25 µg/m3 / year |
Carbon Monoxide |
Type | Electrochemical |
Detection Range | 0-200 ppm |
Accuracy | 5% of reading |
Resolution | 1 ppm |
Response Time | 60 seconds |
Ambient Light |
Type | Phototransistor |
Scale | 0-100 fc (lm/ft2), readable over comms |
Operating Environment |
Temperature | 32 to 122oF (0 to 50oC) |
Humidity | 0-95% non-condensing |
Enclosure |
Material | ABS Plastic |
Dimensions | 5.67"h x 3.00"w x 1.07"d (With concealing ring: 6.35"h x 3.69"w x 1.25"d) |
Compliance |
Agency | CE, RoHS |
- (1) One side of transformer, secondary is connected to signal common. Dedicated transformer is recommended.
- (2) Models with PM sensor included achieve ±5% accuracy over 0 to 80%RH range and an additional temperature shift of up +0.5° C.
- (3) Time for reaching 63% of reading at 25° C and 1 m/s airflow.
- (4) Long term exposures to conditions outside normal range at high humidity may temporarily offset the RH reading (+3%RH after 60 hours).
- (5) Wiring with silicone or other high VOC insulation will affect TVOC readings.
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