EMGA-920 O/N analyzer: It's a "New flagship model” for O/N analyzers and user friendly product.
This is an oxygen and nitrogen 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 oxygen is measured as carbon monoxide and carbon dioxide by a non-dispersive infrared detector and the nitrogen by a thermal conductivity detector.
The sample is placed in a graphite crucible and the crucible is maintained between the upper and the lower electrode of the impulse furnace. A high current power passes through the crucible to create a high temperature.
The oxide in the sample reacts with the graphite crucible, and is extracted as carbon monoxide (CO), and carried together with the carrier gas. The extracted gas is directly analysed after the dust filter. According to the oxygen concentration, it is determined by CO or CO2 after pass throw oxidizer (Copper Oxide) with a non dispersive Infra-Red analyser (NDIR).
The Hydrogen is determined with a non dispersive Infra Red analyser as H2O after H2 passes through the oxidizer (Copper Oxide).
Wide range and high accuracy measurement
*Range: Oxygen: 0-5%, Nitrogen: 0-3%, Hydrogen: 0-0.25%
*Accuracy: σn-1≦0.3ppm or CV≦1.0% for STD sample
σn-1≦0.02ppm or CV≦0.5% for Reference gas
*Accuracy H: σn-1≦0.04ppm or RSD≦2.0% for Reference gas
Double detectors of oxygen (CO and CO2), long type cell and optimized design of TCD provide wide range measurements.
Optimization of the signal processing reduces by half the electrical noise compared to conventional model.
EMGA fulfils requirements of the standard method for analysis of steel titanium, ceramics etc…
*ASTM E1019, ASTM E1569, ASTM E1409…
Simple software allows easy handling.
Extracted gas signals are displayed in real time numerically and also as curves together with temperature level. Graphs are saved automatically.
In the measurement window, sample weight can be registered automatically. Results are saved in a data table for easy management.
Maintenance counter informs users at the timing of consumables replacement to keep high accuracy means.
And as navigator describes the easy to understand procedure for the replacing parts, operator can do maintenance works with absolutely no experience and technical knowledge.
Oxygen:Non Dispersive Infrared detector
Nitrogen:Thermal Conductivity detector（TCD）
*Up to 100% wt is possible by decreasing the sample weight.
Sample weight: 1,0 ± 0,1g
Sensitivity(Minimum reading): Oxygen/Nitrogen: 0.0000001%(m/m)
σn-1≦0.02%(m/m) or CV≦0.5% whichever is larger (Reference gas)
σn-1≦0.3%(m/m) or CV≦1.0% whichever is larger (Standard sample)
** 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
Iner gas fusion in impulse furnace
Enable to set the generating power 0 - 8,0kw
Sample introduction: Dual sample/flux introduction mechanism
Automation functions: Auto cleaner, Crucible loader
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 realtime extraction curve
2) Analysis interruption
3) Self diagnosis and alarm display
4) Analysis of extraction curve (Superposition, difference etc analysis)
5) Out put (RC-232C or TCP/IP)
Sample introduction is positioned at 650mm from table.
On carrying, it is devided 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
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
He 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)
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