Nanomass Gas Density
Electrical connection
Hauser
23
7.2.2
Connecting the signal cables
Signals can be transmitted digitally via a USB port or RS232 interface or by analog
communication via the passive 4-20 mA connection.
Connect the 4-20 mA cable
1. Strip 10 mm (0.4 in) of the cable and cable ends. In the case of stranded cables, also fit
ferrules.
2. Connect the cable to the 4-20 mA connector in accordance with the pin assignment
21.
3. Insert the connector into the 4-20 mA connection of the measuring device and screw
tight.
4. Connect the signal cable to the 12-24 V power supply
Connect the RS232 cable (optional)
1. If necessary, strip 10 mm (0.4 in) of the cable and cable ends. In the case of stranded
cables, also fit ferrules.
2. Where applicable, connect the cable to the RS232 connector in accordance with the pin
assignment
3. Connect the RS232 cable to the RS232 socket of the measuring device and the COM port
(RS232) of the PC and screw tight.
Connect the USB cable (optional)
1. Make sure that the measuring device is disconnected from the supply voltage.
2. Connect the USB cable to the USB port of the measuring device and the USB port of the
PC.
3. Secure the cable to the device with a protection cap and cable clamp.