Mixed Gas Sensor
KWL-VOC
for easyControls
Operating Instructions
2
EN
Power consumption
32 mA at 24 V DC
Connection options up to
8 units
Control line
SL 4/3 (3 m long)
Ambient temperature
0 - 40 °C
Measuring range VOC
450-2000 ppm
Load capacity Analogue outputs
max. 20 mA
Cable cross-section spring terminal
Ø 0.75 mm with wire end ferrule
Ø 1.5 mm without wire end ferrule
3.0 Electrical connection
1. Open housing
Press snap-in hooks inwards (see Fig. 1).
The mixed gas sensor electronics are located in the lid of the housing.
Hook the snap-in hooks to one side of the housing base and snap the housing in for sub-
sequent assembly.
2. Connection
2.1 Connection of an external power supply
– Set plug-in jumper to Ext. (see wiring diagram).
– Connection via the push-in terminals (24 V~) to a suitable power supply.
Please note:
Voltage range DC ±10%
16.5 - 28 V
Voltage range AC -10%
16.5 - 24 V
Rated current at 24 V DC in idle state
32 mA
The specified voltage range must not be exceeded or fallen below. The polarity (+/-) is ar-
bitrary.
2.2 Connection to Helios BUS
– Connection according to wiring diagram.
Addressing
If multiple mixed gas sensors are connected, the addressing must be adjusted. There must
be no double address allocations for sensors 1-8! (see DIP switch table; wiring diagram).
CHAPTER 3
ELECTRICAL
CONNECTION
Fig.1