2. Product overview
2.1 Introduction to GMW80 series
Vaisala GMW80 series CARBOCAP
â
carbon dioxide, humidity, and temperature transmitters
are wall-mount transmitters designed to fulfill the needs for CO
2
measurements in standard
demand controlled ventilation applications.
The following table lists the GMW80 series transmitters and their features.
Table 3 GMW80 series transmitters
Model name
CO
2
output
T output
RH
output
Display
CO
2
LEDs
Relay
T setpoint
GMW83
0 ... 10 V
0 ... 10 V
No
No
No
No
No
GMW83A
0 ... 10 V
0 ... 10 V
No
No
Yes
No
No
GMW83D
0 ... 10 V
0 ... 10 V
No
Yes
No
No
No
GMW83RP
0 ... 10 V
0 ... 10 V
Pt1000
(passive)
0 ... 10 V
No
No
No
No
GMW83DRP 0 ... 10 V
0 ... 10 V
Pt1000
(passive)
0 ... 10 V
Yes
No
No
No
GMW84
4 ... 20 mA
4 ... 20 mA
No
No
No
No
No
GMW84S
4 ... 20 mA
4 ... 20 mA
No
No
No
Yes
No
GMW86P
4 ... 20 mA
0 ... 10 V
Pt1000
(passive)
No
No
No
No
No
GMW87
RS-485
Modbus RTU
output
No
No
No
No
No
No
GMW88
4 ... 20 mA
0 ... 10 V
No
No
No
No
No
No
1)
Temperature measurement data displayed in Celsius scale only.
Letters at the end of the model name stand for the following features:
P
Passive temperature measurement
D
Display
A
CO
2
indicator LEDs
R
Humidity measurement
S
Relay
Chapter 2 – Product overview
7
