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Hydrogen Analyzer | EMGA-921

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Hydrogen Analyzer | EMGA-921


EMGA-921 Hydrogen analyzer: It’s a "New flagship model” for H analyzer and user friendly product.

This is an hydrogen elemental analyzer with high accuracy and repeatability suiting to cutting-edge technology’s R&D as well as quality control in the market of steel, new materials, catalyst and so on. This is a new generation model optimized to fit to user’s requests.

The hydrogen is measured as H2 by a thermal conductivity detector.


  • Super High Performance
  • User-friendly software
  • Fully Supported Accessories give simple operation
  • Improved Mechanism
  • Dual Sample/Flux introduction mechanism


EMGA-921: Oxygen/Nitrogen/Hydrogen analyzer

Principle Hydrogen: Thermal Conductivity detector (TCD)as H2

Measurement range*:

Hydrogen: 0-0.25%

*Possible to increase the range by reducing the sample weight.

Sample weight: 1.0 ± 0.1g

Sensitivity (Minimum reading): Hydrogen: 0.001 ppm.

Accuracy** (Repeatability)

Hydrogen σn-1≦0.04 ppm or RSD≦0.5% whichever is larger (Reference gas)

** Based on the sample weight 1.0 ± 0.1g and with automation functions described below


  1. Measurement result: LCD or printout
  2. Alarm message: LCD or printout
  3. Flow sheet: LCD

Power of furnace

Inert gas fusion in impulse furnace

Enable to set the generating power 0 – 8.0 kw

Sample introduction: Dual sample/flux introduction mechanism

Automation functions: Auto cleaner, Crucible loader

Integration conditions:

Preset time integration

Integration up to reach comparator level

Preset time integration or integration up to reach comparator level, whichever is shorter

Sample ID: Enter up to 20 one-byte characters


  1. One point or multi point calibration (Reference gas or standard samples)
  2. Calibration using previous analysis data
  3. Calibration curve correction function


  1. Display of real time extraction curve
  2. Analysis interruption
  3. Self diagnosis and alarm display
  4. Analysis of extraction curve (Superposition, difference etc analysis)
  5. 5Out put (RC-232C or TCP/IP)

Dimensions: 750mm(H)×785mm(D)×653mm(W)

Sample introduction is positioned at 650mm from table.

Weight: 230kg

On carrying, it is divided in two units (Under 140kg/unit)

Computer: PC model operating OS Windows® XP(SP2) and beyond


Main unit: AC200/220/230/240V ± 10%

Auto cleaner: AC100V (Step-down transformer)

Frequency: 50/60 ± 1Hz

Electric power consumption

Main unit: 12kVA (MAX)

Auto cleaner: 1.5kVA (MAX)

Ground resistance: Less than 10Ω

Installation condition

Operation temperature: 5-40°C

Performance temperature: 5-35°C

Humidity: Maximal relative humidity 80%RH between 5-31℃, linearly decrease down to 50%RH between 31-40℃

Vibration: Duplex amplitude 20micron and less than 0.098m/S2 accelerations at frequency band

Required gas

Ar carrier gas: Purity greater than 99.995%, Pressure 0.35MPa

Stainless steel pipe(O.D.3mm) and suitable connecter fitting within 3m of unit

Dry air or N2 as operating gas: Pressure 0.45MPa

Nylon pipe (O.D.6mm) and suitable connecter fitting within 5m of unit

Cooling mechanism: Radiator unit (Separation type)

Electronic balance (Option)

Enable connection with electronic balance with 1-0.01mg minimum display

Optional automatic voltage regulator (AVR)


Weight: 130kg

Availability: In stock

Additional Information

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