KROHNE SMARTSENS PH 8150 EN - Manual (Page 36)

7
DESCRIPTION OF HART INTERFACE
36
SMARTSENS PH 8150
www.krohne.com 11/2013 - 4002543602 - MA SMARTSENS PH 8150 R02 en
7.4 Inputs/outputs and HART ® dynamic variables and device variables
Code = device variable code
Device variables
The HART ® dynamic variable PV is always connected to the HART ® current output which is
assigned to the pH value.
7.5 Field Communicator 475 (FC 475)
The Field Communicator is a hand terminal from Emerson Process Management that is
designed to configure HART
® and Foundation Fieldbus devices. Device Descriptions (DDs) are
used to integrate different devices into the Field Communicator.
7.5.1 Installation
The HART ® Device Description for the sensor must be installed on the Field Communicator.
Otherwise only the functions of a generic DD are available to the user and the entire device
control is not possible. A "Field Communicator Easy Upgrade Programming Utility" is required to
install the DDs on the Field Communicator.
The Field Communicator must be equipped with a system card with "Easy Upgrade Option". For
details consult the Field Communicator User’s Manual.
HART ® dynamic variable
PV SV TV QV
pH Electrode voltage Temperature Resistance
HART ® device variable Code Type
pH value 0 linear
Electrode voltage 1 linear
Temperature 2 linear
Resistance 3 linear
.book Page 36 Monday, November 18, 2013 11:05 AM