AirSense Model 310e Operator’s Manual
Specifications
Operating principle Non-dispersive infrared (NDIR)
Gas sampling method Diffusion or sample draw
Measurement range 0 - 5000 ppm CO
2
Typical drift (per year)
±75 ppm (@ 1200ppm)
Accuracy
±5% of reading or ±75 ppm,
Repeatability
±20 ppm
Recommended Calibration Interval Five Years
Response time Less than 1 minute
Operating temperature range
0 to 50 ° C
Operating humidity range 0 - 90% RH (non condensing)
Storage temperature
-30 to + 60 ° C
Power requirements 20 - 28 VRMS AC, 18 - 30 VDC
Power consumption Less than 2W @ 24 VAC
Calibration adjustments Span only (offset electronically
nulled)
Calibration verification time 10 minutes typical
Dimensions 5.2" x 3.2" x 1.4"
Voltage output (linear) 0 - 10 volts DC standard
Current output (linear)
4 - 20 mA (R
L
≤ 500Ω)
Warm-up time 3 minutes
Weight 6.5 Oz. (.35 Kg)
Optional Digital Display 4 digit, .35" LCD
Optional setpoint range 0 to full scale
High
Limit
contact polarity jumper selectable
Contact contact rating 2A @ 24 VAC
Operating life expectancy 10 years typical
Warranty 18 months, parts and labor through
repair or exchange
3/9/15 Digital Control Systems Page: 2
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