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Specifications

Method of Detection

Single cell NDIR with no moving parts

Ranges Available

470 - 0-1, 0-5, 0-10, 0-20, 0-30, 0-50, 0-100% CH4
470L - 0-500, 0-1000, 0-3000, 0-5000, PPM CH4

Resolution

0.1% CH4 on % versions, 1 PPM CH4 on PPM versions

Accuracy & Repeatability

1% of full scale

Drift

Less than 2% of full scale per month

Response Time (T-90)

Less than 15 seconds

Ambient Temperature Range

40 to 122°F (5 to 50°C), Lower temperatures (-5°F, -20°C) available with Cold Weather Package

Linearity

±1% of full scale

Size & Weight

Physical data will vary depending on enclosure style and options required

Power

115 VAC, 60 Hz
220 VAC, 50 Hz

Output Options

4-20 mA into 500 ohms non-isolated standard
Isolated 4-20 mA, RS232, RS485, MODBUS, Ethernet outputs

Alarms

High and/or low alarm contacts available, relay contacts SPDT 5A @ 220 VAC rating
Low flow alarm

Analyzer Type

Continuous Online, Single Gas

Hazardous Area Rating Options

Class 1, Div 1, Grp A-D Hazardous Area Rating


Applications
    For continuous analysis of methane (CH4) in process gas streams using an infrared detector. Percent and PPM levels available as Models 470 & 470L respectively.




Features
  • PPM or percent CH4 by infrared detector
  • Detector is sensitive, very reliable, and non-depleting
  • Bright digital readout, 4-20 mA outputs
  • Fast response (T90 - less than 15 seconds)
  • Microprocessor control for push button calibration
  • Easy-to-maintain modular layout
  • Built in sample pump, flowmeter, and filters




Options
  • Hi/Low gas, low flow, and diagnostic alarms available
  • Isolated analog, RS232, RS485, MODBUS, and Ethernet outputs available
  • Sample conditioning systems available for removal of moisture, acidic gas, and dust
  • Cabinet purge system available for use in hazardous areas
  • One-step 'cal-now' button with touch screen LCD display
  • Full automatic calibration with touch screen LCD display
  • Cold weather package for operation to -5°F (-20°C)
  • Cabinet coolers can be fitted to most models
  • Sensors mounted in temperature controlled heated box to improve accuracy
  • High temperature filters and probes




Calibration
  • Easily zero checked on ambient air or nitrogen (N2)
  • Span using a known CH4 in nitrogen calibration gas.
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