Description
Specification
Preset ranges | 0-5, 50, 500 ppm, or 0-10, 100, 1000 ppm, or 0-20, 200, 2000 ppm, or 0-50, 500, 5000 ppm Group selectable at time of order |
Zero noise | 0.025 ppm RMS (300 second averaging time) |
Minimum detectable | 0.050 ppm CH4-0.050 NMHC as propane (300 second averaging time) |
Zero drift (24 hour) | Auto-zero each cycle |
Span drift (24 hour) | < 2% Span value (without auto calibration) |
Response time (90%) | ~ 70 seconds |
Precision | 2.0% of reading or 50 ppb (whichever is larger) |
Linearity | +/-2.0% of span (at concentrations of 10% to 100% of span |
Sample flow rate | 0.5 lpm, minimum |
Makeup air flow rate | 275 cm3 to 350 cm3 hydrocarbon free air |
Fuel flow rate | 25 cm3 to 50 cm3 Hydrogen or ~100-150cm3 H2/He mixture |
Carrier gas flow rate | 35 cm3 to 70 cm3 nitrogen |
Operating temperature | 15°C to 35°C |
Power requirements | 100 VAC, 115 VAC, 220-240 VAC +/-10%, 50/60Hz, 420W |
Size and weight | 16.75″ (W) × 8.62″ (H) × 23″ (D), 60 lbs. (17.7 kg) |
Outputs | Selectable voltage, RS232/RS485, TCP/IP, 10 status relays, and power fail Indication (standard). 0-20 or 4-20 mA isolated current output (optional) |
Inputs | 16 digital inputs (standard), 8 0-10Vdc analog inputs (optional) |