Vaisala HMT310 - Manual (Page 33)

Chapter 3 ________________________________________________________________ Installation
VAISALA ________________________________________________________________________ 33
Connections
When the HMT310 leaves the factory, the measurement ranges, output
scaling and quantities have already been set according to the customer
order. The unit is calibrated at the factory and ready for use.
The transmitter is delivered with either a screw terminal connector or
with a detachable 5m cable with eight wires for serial port, analog
outputs and 10 … 35 VDC power supply (requirements vary
dependending on the operating environment, functions and output type).
The wiring is described in this section. For power supply requirements,
see section Power Supply Requirements on page 34.
Cable Wiring
0507-044, 0507-045
Figure 14 8-Pin Connector (Left) and Screw Terminal
Connector (Right)
Pin Wire Serial Signal RS-232C Analog Signal
1 White Data out TX -
2 Brown - Ch 1 - / Ch 2 -
3 Green - Ch 2 +
4 Yellow - Ch 1 +
5 Grey Supply - / RS-232 GND Supply -
6 Pink Supply + Supply +
7 Blue Data in RX -
8 Red Not connected Not connected