
Kurz Instruments Inc. Document 360209-AU
Document Title: MFT B-Series WirelessHART Interface Guide
Revision. A, Release Date: 08.17.2010 Page 5 of 21
If your MFTB is loop powered, the wired connection between the THUM Adapter and the MFTB
is similar to the following:
THUM/MFTB Wiring Diagram – MFTB Loop Powered
MFTB
SC Board
Terminals
THUM
Adapter
Wires
1 RPS
MFTB
Sensor
Wires
2 RPL
3 RPH
4 RTCL
5 RTCH
6 GND Green
7 485+
NC
9 GND
10 +24V
11 AO1+ Yellow
12 AO1- White
The THUM Red wire connects to the customer’s 4-20mA(+) field wiring and the THUM Black
wire connects to the customer’s 4-20mA(-) field wiring.
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