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 Chemistry and Biotechnology - ELTRA - Oxygen / Nitrogen / Hydrogen Analyzer ELEMENTRAC ONH-2000


http://www.eltra.com/products/onh-analyzers/onh-2000/function-features/
Oxygen / Nitrogen / Hydrogen Analyzer ELEMENTRAC ONH-2000
The ONH-2000 is designed for the rapid and accurate determination of oxygen, nitrogen and hydrogen in copper, steel, cast iron, alloys, zirconium, titanium, molybdenum, nickel, ceramics and other inorganic materials. The ONH-2000 can be supplied with two independent infrared cells to provide optimum precision for the analysis of high and low levels of oxygen. Nitrogen and hydrogen are detected with a dual range thermal conductivity cell. The change over from the low to the high ranges is done automatically during the analysis and does not require any pre-setting by the operator. The ONH-2000 features a 16-bit microprocessor and solid state infrared detectors with auto zero and auto range control. The water cooled high power electrode impulse furnace uses a graphite crucible to heat the sample up to a temperature of 3000X C. On request the ONH-2000 measuring ranges can be optimized in the factory to suit your requirements, without additional charges. The sensitivity of the detectors can be designed to provide maximum accuracy in ranges from low ppm up to high percentage concentrations.
ON operation OH operation
MEASURING RANGES
Oxygen at 1 gram sample Oxygen at 1 gram sample
Low Nitrogen
0.0 - 300 ppm1)
High Oxygen
up to 2%1)
Low Oxygen
0.0 - 300 ppm1)
High Oxygen
up to 2%1)
Sensitivity: 0.1 ppm Nitrogen
Indication range: 0 - 100% Nitrogen2)
Sensitivity: 0.01 ppm Hydrogen
Indication range: 0 - 100% Hydrogen2)
ACCURACY
Low Oxygen
0.1 ppm or 1% of Oxygen present
Low Oxygen
0.1 ppm or 1% of Oxygen present
High Oxygen
2 ppm or 1% of Oxygen present
High Oxygen
2 ppm or 1% of Oxygen present
Low Nitrogen
0.1 ppm or 1% of Nitrogen present
Low Hydrogen
0.05 ppm or 1% of present Hydrogen
High Nitrogen
2 ppm or 1% of Nitrogen present
High Hydrogen
0.5 ppm or 1% of present Hydrogen
GENERAL SPECIFICATIONS
Detection method
Solid State infrared absorption for Oxygen and thermal conductivity for Hydrogen and Nitrogen
Normal sample weight
1 gram
Normal analysis time
2 minutes
Chemicals
C2O Trap - Sodium Hydroxide / H2O Trap - Magnesium Perchlorate / Catalyst - Copper Oxide / Schutzes Reagent
Calibration
Standard samples and gas dosing device on request
Furnace temperature: up to 3000XC
Furnace power: 0 to 8 kW
Gas required
Nitrogen at least 99.995% pure3) 2 to 4 bar (30 to 60 psi) / Helium at least 99.995% pure3) 2 to 4 bar (30 to 60 psi)
Compressed air
2 bar (30 psi)
Interfaces
Computer - serial4)
Power requirements
max 8500 Watts, 400 V AC 10% 50/60 Hz 3 phase and neutral or 230 V AC 10% 50/60 Hz single phase on request
Dimensions Width Height Depth
55 cm (21") 80 cm (31.5") 60 cm (23.5")
Weight
approx. 140 kg
ACCESSORIES
Balance: 0.0001g to 60 g 0.0001 g
Computer: PC with HDD, 3.5" drive, CD-ROM, TFT flat screen and keyboard
Color printer with automatic cut sheet feed, other options on request
 
1) Other ranges on request. 2) Possible by reducing the sample weight. 3) 99.999% pure for low oxygen analysis. 4) Balance (serial) and printer (USB, parallel) are connected to the PC.
 

 
 
 
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