The behr C 30 IRF Coulometric Analyzer for the Determination of Carbon in Solid, Semi-solid and Liquid Samples

 behr C 30 IRF
 

Coulometric analyzer for the determination of carbon in aqueous, semi-solid and solid samples for example, the analysis

  • of organic carbon in exhaust gas samples collected by the VDI 3481 adsorption method,
  • of diesel emissions by the DFG method (automatic determination of both organic and elemental carbon in the context of workplace environmental health),
  • of organic materials in fine particulates (German diesel soot determination method no. ZH 1/120.44) and
  • TC, TIC, TOC in solid, semi-solid and liquid samples.

The analyzer consists of

  • a programmable infra-red furnace plus downstream resistance furnaces for combustion completion and interferant removal,
  • a coulometric titration cell and associated electronics,
  • software operating under Windows.

Optionally available:

  • PC for operating the analyzer and storage of analysis data,
  • balance for determining sample weight with automatic data transfer to the PC.

Advantages of the behr C 30 IRF:

  • Highest precision
  • Linear over the entire analytical range
  • Absolute method


Advantages of the combination furnace:

  • Programmable
  • Patent pending ”Heat Pipes” provide cooling without water consumption
  • Downstream resistance furnaces insure total sample combustion and removal of interferants

Technical Specifications:

Analytical principle:  Sample combustion and coulometric quantification
Analytical range:  0,0005 % ( 5 ppm ) – 100 % (depending on weight and nature of sample)
Precision:  0,00005 % ( 0,5 ppm) or ± 0,5 % rel. (depending on nature of sample/carbon content)
Signal processing:  Interference-insensitive exacting pH-measurement by means of a preamplifier mounted directly on the pH electrode, fast response time, resolution 0.001 pH
Coulometric titration cell:  Water-jacketed for temperature control
Titration current:  0,1 ... 320 mA in 256 microprocessor-controlled levels
Furnaces:  Programmable IR furnace with extremely fast heating and cooling rates. Cools without use of water by patent pending ”Heat Pipes”. Downstream resistance furnaces for complete oxidation and interferant removal. Deliverable for quartz combustion tubes up to 28 mm o.d.
IR-Furnace: Max. temperature:1150 °C
  Temp. programs: Up to 5 temp. gradients & 5 temp. plateaus
Resistance furnaces: Max. temperature:1000 °C
  Temp. range: User selectable between 20 - 1000 °C
Sample mass/volume:  0,1 ... 5 ml (liquids)
0,1 ... 1 g (solids)
Gas consumption:  0.5 l/min in operation. Consumes no gas in standby-mode during periods of inactivity
Gases:  For most samples, 99.5 % O2;
For samples below 50 ppm C, use 99.995 % O2
Electrical power:  230 VAC, 50/60 Hz, max. 2,4 kVA max. incl. all furnaces, 10 VA in standby mode
Approximate dimensions
(H x W x D
in mm)		  behr C 30 IRF analyzer w/o PC: 440 x 730 x 370
Titration cell module: 370 x 350 x 320

  Survey C/S coulometer

 
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