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Method of Detection |
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Temperature controlled thermal conductivity (T/C) cell, cannot be burned out due to loss of flow or changing gases
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Ranges Available |
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Range 1 : 0-100% H2 in Air
Range 2 : 0-100% H2 in CO2
Range 3 : 0-100% Air in CO2
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Resolution |
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±0.1% of gas measured
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Accuracy & Repeatability |
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±1% F.S except in 85-100% H2 in Air range which is within 0.2% absolute H2
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Drift |
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H2 in CO2 or Air in CO2 1% F.S. per week maximum drift, 0-100% H2 in Air range is ±0.2% per week
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Response Time (T-90) |
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10-15 seconds to 90% step change - not including sample transport time
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Ambient Temperature Range |
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0 to 49 ºC
32 to 122 ºF
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Linearity |
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±0.4% of F.S. on H2 in Air range, ±1% of F.S. in H2 or Air in CO2 ranges
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Size & Weight |
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Dimensions will vary depending on enclosure style and options required
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Power |
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115 VAC, 60 Hz
220 VAC, 50 Hz
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Output Options |
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4-20 mA into 500 ohms non-isolated standard
Isolated 4-20 mA, RS232, RS485, MODBUS, Ethernet outputs
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Alarms |
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Alarm set points are field adjustable
Alarms have front panel light for each alarm and SPST (normally energized) relay with 5A rating at 250VAC non-inductive load
Dual alarms are provided for low H2 purity. Detector fail alarm also provided as standard
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Analyzer Type |
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Tri-Gas Analyzer
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For continuous analysis of hydrogen (H2) purity and for purge monitoring of hydrogen-cooled generators and synchronous converters.
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- One analyzer monitors all 3 gases for purity (Range 1) or purging (Ranges 2 and 3) :
- Range 1 : 0-100% H2 in Air
- Range 2 : 0-100% H2 in CO2
- Range 3 : 0-100% Air in CO2
- Best value continuous tri-gas analyzer
- Bright digital readout, 4-20 mA Outputs
- Long life electrochemical thermal conductivity cell with high accuracy and repeatability, cannot be burned out.
- Explosion proof gas detector enclosure suitable for Class 1 Division 1 Group BCD rated areas, UL/FM/CSA certified
- Fast response (T90 -10 to 15 secs)
- Easy to maintain modular layout
- Built in pressure regulator
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- Isolated analog, RS232, RS485, MODBUS and Ethernet output available options.
- Auto calibration option which includes the following features :
- Touch-screen display for easy entry of calibration gas settings, alarm set points, and calibration frequency
- One-touch 'cal-now' button (magnetic switch in explosion proof control cabinet) permits easy, and complete calibration without needing to open cabinet cover
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- Channel 1 - Air for Zero, 100% H2 for Span
- Channel 2 - 100% CO2 for Zero, 100% H2 for Span
- Channel 3 - 100% CO2 for Zero, Air for Span
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