Key facts
- Brand
- Vaisala
- Model
- GMT220
- Industry
- Industrial
- Documents
- 2
- Languages
- EN · JA
- Last added
- 2012-04-06
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Vaisala GMT220 User Manual
This guide covers everything needed to install, operate, and maintain the Vaisala GMT220 carbon‑dioxide transmitter. It includes safety information, wiring diagrams, configuration commands, and troubleshooting tips.
The manual is organized into chapters on general information, product overview, installation, operation, maintenance, and technical data, with sections on safety precautions, wiring, relay settings, calibration, and warranty details.
Vaisala GMT220 specifications
| Accuracy (GMT222) | ±20 ppm CO₂ + 2 % of reading |
|---|---|
| Response time (63 %) | 30 s (GMT222) |
| Operating temperature range | ‑20 °C to +60 °C |
| Power consumption | < 4 W |
| Maximum mass (GMT222) | 300 g |
All Vaisala GMT220 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What safety precautions should be taken when installing the GMT220?
Ground the product and verify outdoor installation grounding periodically, and do not modify the unit.
How can I provide feedback on this manual?
Send comments by e‑mail to [email protected], indicating the chapter, section, and page number.
What is the required power supply for the converter?
Connect a nominal 24 V supply to the “+” and “‑” terminals on the motherboard.