Vaisala GMW20 CO Converter User Manual

The GMW20 series converter is a product that uses completely new sensor technology. The CARBOCAP sensor on the silicon substrate has excellent stability and repeatability. The high performance of the GMW20 series converter makes it an ideal product for ventilation control and other applications.


Vaisala GMW20 CO Converter User Manual - cover page
Brand
Vaisala
Category
Other
Document type
User Manual
Language
Japanese
Pages
4
File format
PDF
File size
247 KB
Published
06 April, 2012
Updated
29 September, 2023
Model
GMW20
MD5 checksum
806DB00F6DF15E907A3021599450AC33

About this manual

This manual describes the GMW20 series CO converter, a compact sensor device using CARBOCAPW technology for high stability and repeatability. It covers installation steps, electrical wiring, and optional features such as relay output and LonWorks interface.

The document also includes service and maintenance recommendations, calibration guidelines, technical specifications, and safety warnings. Power requirements, output options, and environmental limits are detailed for proper operation. This manual is written in Japanese.

What's inside

  • Introduction
  • Installation
  • Electrical Wiring
  • Power Supply
  • Output Options
  • Service and Maintenance
  • Calibration
  • Technical Information
  • Safety Warnings

Specifications

Measurement range0‑2000 ppm CO, 0‑5 000 ppm CO₂, 0‑10 000 ppm CO₂, 0‑20 000 ppm CO
Power supplyNominal 24 VDC/24 VAC (18‑30 VDC range)
Maximum current draw85 mA (peak 170 mA)
Dimensions80 mm × 80 mm × 85 mm
Operating temperature range-20 °C to +70 °C

Frequently asked questions

How often should the GMW20 be calibrated?

Calibration is recommended every year for typical operating environments.

What are the power supply requirements for the GMW20?

The unit requires a nominal 24 VDC or 24 VAC supply, with an acceptable range of 18‑30 VDC.

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