TELEDYNE OLDHAM SIMTRONICS OLCT 80 d, User Manual

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OLCT 80
GAS TRANSMITTER
USER MANUAL
NPO80GB
Revision F.1
59
5 Wireless Version
5.1 Purpose
The
OLCT 80 is available in a wireless version that may be appropriate in the following situations:
•
Data transmission over long distances.
•
Gas detection on moving equipment (e.g., crane bucket).
•
Situations where wiring would be problematic, if not impossible (e.g., across a road,
waterway or railway).
•
Situations in which installation costs would be prohibitive.
The
OLCT 80 communicates with the central measuring controller or PLC via 2.4 GHz radio
waves in Europe or 900 MHz in the US over a distance of up to 3200 or 9600 meters,
respectively, under free-field conditions.
5.2 Concept
The wireless
OLCT 80 transmitters (A) communicate between one another until the signal reaches
a
master receiver (B), which is connected to the MX 43 central controller (via an RS485 Modbus
connection). This
master receiver is used to manage a mesh network of up to 49 OLCT
80transmitters.
Figure 44: mesh network topology.