KROHNE SMARTSENS ORP 8510 EN - Manual (Page 30)

7
DESCRIPTION OF HART INTERFACE
30
SMARTSENS ORP 8510
www.krohne.com 11/2013 - 4002547502 - MA SMARTSENS ORP 8510 R02 en
7.3.1 Point-to-Point connection - analogue / digital mode
Point-to-Point connection between the sensor and the HART ® Master.
The current output of the device is passive.
Figure 7-1: Point- to-Point connection
1 Primary master with e.g. PACTware TM FDT/DTM
2 FSK modem
3 HART
® signal
4 SD 200 W/R or SMARTMAC 200 W (optional)
5 Sensor
6 Secondary master with HART
® DD
7 Power supply for devices (slaves) with passive current output
8 Load ≥ 250 Ω (Ohm)
.book Page 30 Monday, November 18, 2013 4:12 PM