Gasmet Technologies Oy

- Portable Sampling Unit

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The Gasmet portable sampling unit has been designed for portable emission monitoring measurements. It can be used for measuring trace concentrations of pollutants in wet, corrosive gas streams. The sample gas can be measured undiluted and without drying since the sample pump, heated filter and valve are all located in a module that is heated to 180 ºC. From the Sampling Unit the gases can be directed into Gasmet FTIR gas analyzer. The portable sampling unit includes power connections and temperature controllers for heated lines and heated module. The unit is connected to an external PC through Gasmet FTIR gas analyzer and can be controlled by Calcmet software.

The portable sampling unit has been designed for portable emission monitoring measurements. The portable sampling unit is used for on-site measurements. It can be used for measuring trace concentrations of pollutants in wet, corrosive gas streams. The sample gas can be measured undiluted and without drying since the sample pump, heated filter and valve are located in a module that is heated to 180 ºC. From the Sampling Unit the gases can be directed into the FTIR gas analyzer.

  • Hot-wet extractive
  • No drying or dilution
  • Optional integrated O2 sensor
  • Manual or automatic operation

The portable sampling unit includes power connections and temperature controllers for heated lines and heated module. The portable sampling unit is connected to an external PC through the FTIR gas analyzer and can be controlled by Calcmet software.

The function of the portable sampling unit is automatic, but sample pump and valve can be controlled also manually.

In the case of a power failure or if the temperature (pump, lines, sample cell) is below setting, the automatic 3-way valve switches sample gas to zero gas to prevent condensation. Sample pump can not be switched on before all temperatures have reached the setting. In addition, the zero calibration of the FTIR gas analyser can be done automatically with the portable sampling system.

As an option, the sampling unit can be equipped with a sample probe and / or heated lines. The maximum length for the heated line is 19 m + 1 m with 230 VAC and 9 m + 1 m with 115 VAC power supply. There is also an optional integrated O2 sensor that supplements the capabilities of the FTIR gas analyzers.

General parameters

  • Operating temperature: 20 ± 20 °C, non condensing
  • Storage temperature: -20 – 60 °C, non condensing
  • Power supply: Separate models for 100-115 and 230 V / 50 -60 Hz
  • Power consumption: 400 - 3600 W, depending of the sample lines (without sample probe)

Heated sample pump

  • Material: 316 SS
  • Diaphragms: Teflon
  • Maximum flow: ~4 l/min, constant
  • Temperature: 180 °C, maximum

Heated filter

  • Material: Bonded microfiber (sintered steel 0.1µ as an aoption)
  • Gas filtration: Filtration of particulates 2 µm
  • Temperature: 180 ºC

Temperature controllers

  • Material temperature range: 0 – 180 ºC
  • Display: Digital, 3 digits

Valves

  • Pressure: 0 - 2 bars
  • Temperature: 60 ºC maximum
  • Valves: Sample gas / zero gas

Gas connectors

  • Sample gas inlet: One piece, 6 mm Swagelok
  • Sample gas outlet: One piece, 6 mm Swagelok
  • Zero gas inlet: One piece, 6 mm Swagelok

Electrical connectors

  • Power connection: CEE7 standard European Schuko plug or fixed cable

Enclosure

  • Material:  SS 316
  • Dimensions (mm):  400 x 300 x 210 mm
  • Weight:  12.3 kg
  • CE label:  EMI guideline 89/336/EC

Optional oxygen sensor

  • The O2 concentration reading can be displayed on the Calcmet software
  • Principle: ZrO2 cell
  • Measuring range: 0.1 – 25 %
  • Accuracy: < 2% from FS
  • Calibration: Single point calibration with air

Optional heated line

  • Tube size:  4 mm, inner diameter
  • Core material: Teflon core
  • Operating pressure:  Maximum 400 kPa
  • Temperature:  Maximum 200 ºC
  • Fittings:  6 mm Swagelok
  • Power supply:  230 VAC or 115 VAC
  • Power density: 120 Watts /meter
  • The maximum length of the heated line is 19 m + 1 m (230 VAC) and 9 m + 1 m (115 VAC).

Optional sample probe

Sample probe: PSP4000H

  • Power density: 320 watts
  • Operating temperature: 0 – 180 ºC
  • Filter element: Ceramic 2 μm
  • Dust loadings: < 2 g/m3

Probe tube material: SS 316 Viton

  • Probe length: One (1) meter
  • Sample temperature: 600 ºC maximum
  • Sample pressure: 1 bar maximum

Other probes for high temperatures and for high dust loadings.

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