Gasboard-3500UV Online UV-DOAS Biogas Monitoring System
Biogas Analyzers

Gasboard-3500UV

Online UV-DOAS Biogas Monitoring System

Model
Gasboard-3500UV
Category
Gas Analyzers › Biogas Analyzers

Parameters: H2S, CH4, CO2, O2

IndustriesEnergy & Biogas
Measurement PrincipleNDIRElectrochemicalUV-DOAS
Request a QuoteTechnical InquiryCatalog (PDF)

Overview

Gasboard-3500UV is an online UV-DOAS biogas monitoring system measuring H2S before and after the scrubber, plus CH4, CO2 (NDIR) and O2 (ECD), without purge cycles. Switchable high/low H2S ranges, a stainless cabinet, explosion-proof design and up to four sampling channels support scrubber efficiency checks and equipment protection.

Key Features

  • Unique technology of UV-DOAS, NDIR and ECD combination.
  • High & low range H2S measurement, switchable for points before and after scrubber.
  • UV-DOAS H2S sensor with higher precision and longer lifespan.
  • Continuous monitoring on H2S, CH4, CO2, O2 for optimized process control.
  • Modular sensor design enables easy calibration and maintenance.
  • Flexible gas conditioning configuration, customizable to site requirements.
  • Stainless steel protective integration cabinet to avoid corrosion in long term operation.
  • Ex-proof design applicable to outdoor hazardous area installation.
  • Support up to 4 sampling channels

Measured Parameters

ParameterMeasuring Range
H2STo be confirmed
CH4To be confirmed
CO2To be confirmed
O2To be confirmed

Specifications

GasH2S, CH4, CO2, O2
TechnologyH2S: UV-DOAS; / CH4:NDIR; / CO2: NDIR; / O2: ECD
Measurement RangeH2S: 0-500~5000ppm; / CH4: 0-100%; / CO2: 0-50%; / O2: 0-25%
ResolutionH2S: 1ppm / CH4: 0.01% / CO2: 0.01% / O2: 0.01%
Accuracy±2%F.S.
Repeatability≤1%F.S.
Response TimeT90＜60s
Gas Flow(0.7~1.2) L/min
Gas Pressure(2~50) kPa
Power SupplyAC220V, 100W
Ex-Proof GradeExdIICT6 (Analyzer)
Analog4-20mA
DigitalRS232/485

Applications

  • H2S scrubber efficiency monitoring
  • Continuous biogas quality monitoring
  • Biogas facilities in outdoor hazardous areas

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