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Power Supply
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12-30VDC/24VAC(1), 100mA max.
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Analog Outputs
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Temperature
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0--5/10V standard, Scaling 50°F to 95°F (10°C to 35°C); thermistor/RTD values optional
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CO2 and RH
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0-5/10V
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Update Rate
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Continuous
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Programmable Relay
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Solid-state output, 1A @ 30VAC/DC, N.O.
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Protocol Output
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Protocol
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BACnet (Isoloated)
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Connection
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3-wire RS-485, with isolated ground
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Data Rate
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Locally set baud rate up to 115200 (9600, 19200, 28800, 38400, 57600, 76800, 115200)
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Address Range
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0-127
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Protocol Relay Set-point
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Programmable
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Solid-state output, 1A @ 30VAC/DC, N.O.
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Source selectable: CO2, RH, Temperature
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CO2
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Type
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Non-dispersive Infrared (NDIR)
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Accuracy
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±(30ppm +3% of reading) (400-2000ppm), @-10-50°C
±(50ppm +5% of reading) (2000-5000ppm), @-10-50°C
±(100ppm+10% of reading) (5000-10000ppm), @ 0-50C
Dual Channel:
±(30ppm+3% of reading) (0-2000ppm), @ 0-50C
±(50ppm+3% of reading) (2000-5000ppm), @ -10-50C
±(100ppm+10% of reading) (5000-10000ppm), @ 0-50C
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Range
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0-2000/5000ppm; Programmable up to 10,000ppm
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Response time
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30 seconds
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Sample rate
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1 second
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Relative Humidity
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Type
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Digital CMOS
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Accuracy
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2% models, +/-2% over 10 to 90%RH range
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Resolution
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0.05%RH
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Hysteresis
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+/-1%RH
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Temperature coefficient
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Compensated on-board
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Response time (3)
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30s
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Sample rate
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3s
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Operating range/Output Scale
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0 to 100%RH (non-condensing)
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Long term drift
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<0.5%RH per year
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Operating conditions (4)
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-20° C to 60° C @ RH>90%; -20° C to 80° C @ RH=50%
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Type
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Silicon Bandgap
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Temperature
(with RH option)
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Nominal Accuracy
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+/-0.3° C (operating range)
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Maximal Accuracy
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+/-0.5° C (at 25° C), +/-1.0° C (operating range)
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Resolution
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0.01° C
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Repeatability
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+/-0.1° C
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Response time (3)
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30s
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Sample rate
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3s
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Type
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NTC Thermistor
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Nominal Accuracy
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+/-0.5° C (operating range)
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Temperature
(without RH option)
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Maximal Accuracy
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+/-1.0° C (at 25° C), +/-2.0° C (operating range)
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Resolution
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0.05° C
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Repeatability
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+/-0.2° C
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Sample Rate
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100 milliseconds
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Operating Environment (5)
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Temperature
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-4 to 122F (-20 to 50C)
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Humidity
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0-95% non-condensing
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Enclosure
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Material
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ABS Plastic
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Dimensions
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4.85”h x 3.25”w x 1.19”d
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(1) One side of transformer, secondary is connected to signal common. Dedicated transformer is recommended.
(2) Quick Start Menu parameters shown, for additional capabilities see installation manual.
(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) Accuracy of CO2 reading may be reduced at temperatures below 14F (-10C)
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