Relay; Figure 8 Relay Indicator Led On Gmw84S; Figure 9 Rotary Switch; Table 4 Relay Setpoints - Vaisala CARBOCAP GMW80 Series User Manual

2.3 Relay
Transmitter model GMW84S has one SPST-NO relay (max. 50 VDC / 50 VAC, 500 mA) that is
activated when the measured CO
(contact is closed), a green LED is lit on the transmitter cover.
Figure 8 Relay indicator LED on GMW84S
Relay setpoint is set using a rotary switch on the component board. Use a small flat head
screwdriver to turn the switch. The switch has ten positions with predefined setpoints.
Figure 9 Rotary switch
Table 4 Relay setpoints
Switch position
0
1
2
level rises above the setpoint. When the relay is active
2
Setpoint in ppm CO
600 ppm (default)
700 ppm
800 ppm
Chapter 2 – Product overview
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