User Manual

CONTENTS
5
www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en
OPTIWAVE 7400-24 C
6.5.2 Error handling....................................................................................................................... 80
7 Service 84
7.1 Periodic maintenance..................................................................................................... 84
7.2 How to clean the top surface of the device .................................................................... 84
7.3 How to clean horn antennas under process conditions ................................................ 84
7.4 How to replace device components ............................................................................... 84
7.4.1 Service warranty ................................................................................................................... 84
7.4.2 Replacement of the OPTIWAVE 7300 signal converter with the OPTIWAVE 7400 signal con-
verter............................................................................................................................................... 85
7.5 Spare parts availability...................................................................................................87
7.6 Availability of services .................................................................................................... 87
7.7 Returning the device to the manufacturer..................................................................... 88
7.7.1 General information.............................................................................................................. 88
7.7.2 Form (for copying) to accompany a returned device............................................................ 89
7.8 Disposal .......................................................................................................................... 89
8 Technical data 90
8.1 Measuring principle........................................................................................................90
8.2 Technical data................................................................................................................. 91
8.3 Minimum power supply voltage ..................................................................................... 99
8.4 Antenna selection......................................................................................................... 100
8.5 Guidelines for maximum operating pressure.............................................................. 101
8.6 Dimensions and weights .............................................................................................. 103
9 Description of HART interface 115
9.1 General description ...................................................................................................... 115
9.2 Software history ...........................................................................................................115
9.3 Connection variants...................................................................................................... 116
9.3.1 Point-to-Point connection - analogue / digital mode......................................................... 116
9.3.2 Multi-Drop connection (2-wire connection) ....................................................................... 116
9.4 HART® device variables............................................................................................... 116
9.5 Field Communicator 475 (FC 475)................................................................................ 116
9.5.1 Installation .......................................................................................................................... 116
9.5.2 Operation............................................................................................................................. 117
9.6 Asset Management Solutions (AMS)............................................................................ 117
9.6.1 Installation .......................................................................................................................... 117
9.6.2 Operation............................................................................................................................. 117
9.6.3 Parameter for the basic configuration ............................................................................... 117
9.7 Field Device Tool / Device Type Manager (FDT / DTM)................................................ 118
9.7.1 Installation .......................................................................................................................... 118
9.7.2 Operation............................................................................................................................. 118
9.8 HART
®
menu tree for Basic-DD .................................................................................. 118
9.8.1 Overview Basic-DD menu tree (positions in menu tree).................................................... 118
9.8.2 Basic-DD menu tree (details for settings).......................................................................... 118
9.9 HART
®
menu tree for AMS .......................................................................................... 119
9.9.1 Overview AMS menu tree (positions in menu tree)............................................................ 120