5 Electrical installation
WirelessHART Adapter SWA70
48
Hauser
5.6.4
Four-wire field device
The following functions are possible with this connection version:
• Current measurement in the 4 to 20 mA range
• Digital HART communication if this is supported by the field device.
Connect the WirelessHART Adapter as illustrated below:
Fig. 5-25: WirelessHART Adapter with battery unit –
connection of a four-wire field device
5.7
Post-connection check
After wiring the WirelessHART Adapter, perform the following final checks:
• Is the assignment of the terminals correct?
• Is the cable gland sealed tightly?
1
WirelessHART Adapter terminals 1 to 6
2
Four-wire field device
1
2
3
4
5
6
+
–
1
2
