Key facts
- Brand
- Vaisala
- Model
- GMW115
- Industry
- Industrial
- Documents
- 2
- Languages
- ZH · JA
- Last added
- 2022-09-14
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Vaisala GMW115 GMM112 Operating Instructions
This manual provides the installation and operating guidance for the Vaisala GMW115 CO₂ converter and GMM112 module used in HVAC systems. It includes wiring diagrams, dimensions, mounting procedures, and details on the analog and serial interfaces.
The document also describes the serial communication options (RS232 default, optional RS485), command set, technical specifications such as measurement range, accuracy, power requirements, and warranty information, as well as service and calibration contacts. This manual is written in Japanese.
Vaisala GMW115 specifications
| CO2 Measurement Range | 0 ... 2000 ppm / 0 ... 5000 ppm |
|---|---|
| Accuracy | ± (2% range + 2% reading) |
| Long-term Stability | ±5% of range / 5 years |
| Response Time T90 | 1 minute |
| Operating Temperature | -5 ... +45 ºC |
| Relative Humidity | 0 … 85 % RH |
| Operating Voltage | 24 V (±20 %) AC/DC |
Source: Vaisala CARBOCAP CO2 Transmitter GMW115 Product Leaflet
All Vaisala GMW115 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 is the response time of the GMW115 transmitter?
The response time T90 is 1 minute.
From: Vaisala CARBOCAP CO2 Transmitter GMW115 Product Leaflet
What technology does the GMW115 use for CO2 sensing?
It uses Vaisala's proprietary CARBOCAP® silicon-based infrared absorption sensor technology.
From: Vaisala CARBOCAP CO2 Transmitter GMW115 Product Leaflet
What is the measurement range of the GMM112 module?
The GMM112 measures CO₂ from 0 to 2000 ppm.
Which serial communication interfaces are supported?
The device supports RS‑232 (default) and optional RS‑485 interfaces.