KROHNE SMARTPAT PH 8530, Handbook

Page: 41 / 52

DESCRIPTION OF HART INTERFACE
8
41
SMARTPAT PH 8530
www.krohne.com 03/2016 - 4002544803 - MA SMARTPAT PH 8530 R03 en
8.3.1 Point-to-Point connection - analogue / digital mode
Point-to-Point connection between the sensor and the HART
®
Master.
The current output of the sensor is passive.
Figure 8-1: Point- to-Point connection
1 Primary master with e.g. PACTware
TM
FDT/DTM
2 FSK modem
3 HART
®
signal
4 SMARTMAC 200 W
5 SMARTPAT Sensor
6 Secondary master with HART
®
DD
7
Power supply for devices (slaves) with passive current output
8 Load
≥
250
Ω
(Ohm)