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Sample Gas Cooler (Peltier)

  • For operation in Ex-Zone 1 or 2
  • For extractive gas analysis
  • For emission and process monitoring
  • Continuous drying of sample gas to a precise low and constant outlet dew point
  • Minimizes water vapor cross sensitivities and volumetric errors

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  • Very powerful compact complete unit with condensate removal and condensate monitoring
  • High flow rates of up to 250 Nl/h
  • Very low wash out ratios even at high water vapour concentrations in the sample gas
  • High inlet dew points possible
  • Reliable condensate separation
  • Extremlely precise long term stable dew point even under varying loads
  • Maximum operational safety
  • Low maintenance operation
  • Easy to maintain design



  • New modular designed compact construction
  • New heat exchanger JHEX-4 in different materials
  • Intelligent digital control electronic
  • Applicable up to high ambient temperatures
  • Integrated condensate pump as option
  • Integrated condensate monitoring as option
  • Status contact for temperature thresholds as well as for condensate alarm
  • Visual alerting via LEDs
  • Self monitoring with deactivation of the external sample pump in case of alarm
  • Extractive gas analysis
  • Emission and process monitoring
  • Continuous drying of sample gas to a precise low and constant outlet dew point
  • Minimises water vapour cross sensitivities and volumetric errors
Cooling principlePeltier cooling
Number of gas paths1
Number of Peltier elements1
Integrated condensate pumpoption
Integrated condensate monitoringoption
Gas flow per gas path*max. 250 Nl/hr
Gas inlet temperature*max. 140 °C; SS heat exchanger: max. 180 °C
Gas inlet dew point*max. 80°C
Gas outlet dew point5 °C (factory default); adjustable from 0,5 °C to 7,5 °C
Dew point stability
(for constant inlet conditions)
±0,1 K
Ambient temperature5° to 45 °C
Cooling capacity totalmax. 15 W
Operating pressure with condensate pump0,2 to 2,2 bara
Max. operating pressure without condensate pump4,0 bara; SS heat exchanger: max. 19 bara
Ready for operation< 30 min
Pressure drop at max. flow rate3 mbar
Dimensions over all (W x H x D)244 x 308 x 211 mm
Installationwall mounting
Mounting positionapprox. 6,5 kg
Housing / Colourstainless steel / natural
Gas wetted materials (depending on configuration)PVDF, SS316Ti, FFKM, Duran glass
Dead volume per gas path67 ml
Connection sample gas and condensate outlet
with condensate pump
PVDF-hose fitting DN 4/6
for SS: pipe 6 mm
Condensate outlet without condensate pump1/4“ NPTf or 3/8“ NPTf
for SS: pipe 12 mm
Approvals / SignsCE
Power supply230 VAC 50/60 Hz +/- 10 % or 115 VAC 50/60 Hz +/- 10 %
Power consumption
(depending on load and ambient temperature)
30 to 160 VA
Connection powerIEC plug
Protection class (in default mounting position)IP 20 (EN 60529)
Fusinglead fuse T2A in IEC plug
On time100 %
Diagnostic / Operation indicator1 x bicolour LED
with condensate detector: 2 x bicolour LEDs
Status threshold< 0 / > +10 °C
Status delay0,5 s
Status relayvolt free contact, 230 VAC / 2 A, min. 5 VADC / 5 mA
Connection terminals / Clamping rangespring type terminals 0,5 mm2
to 2,5 mm2
Threshold condensate detectorfactory setting 12 kΩ
adjustable 2 to 30 kΩ



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