Span Drift
1
at 10 mmol/mol: <0.006 mmol/mol/°C
Total Drift
2
at 10 mmol/mol: <0.016 mmol/mol/°C
RMS Noise at 10 mmol/mol with 1 sec signal filtering: <0.01 mmol/mol
Sensitivity to CO
2
: <0.0001 mmol/mol H
2
O/ppm CO
2
Measurement Principle: Non-Dispersive Infrared
Traceability: Traceable gases to WMO standards for CO
2
. NIST traceable LI-610 Portable Dew Point Generator
for H
2
O
Pressure Compensation Range: 15 kPa-115 kPa
Maximum Gas Flow Rate: 1 liter/min
Output Signals: Two analog voltage (0-2.5V or 0-5V) and two current (4-20mA)
Digital: TTL (0-5V) or Open Collector
DAC Resolution: 14-bits across user-specified range
Source Life: ~18,000 Hours
Power Requirements: Input Voltage 12-30 VDC
1.2A @ 12V (14W) maximum during warm-up with heaters on
0.3A @ 12V (3.6W) average after warm-up with heaters on
Operating Temperature Range: –20°C to +45°C
Relative Humidity Range: 0 to 95% RH, Non-Condensing
Dimensions: 8.75" × 6" × 3" (22.23 × 15.25 × 7.62 cm)
Weight: 2.2 lbs (1 kg)
Internal Optical Cell Volume: 14.5 mL
1
Span drift is the residual error after re-zeroing following a temperature change.
2
Total drift is the change with temperature without re-zeroing or re-spanning.
Appendix A
Appendix A. SpecificationsA-2
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