User Manual

CONTENTS
5
www.krohne.com12/2015 - 4004901901 - MA OPTIWAVE7400-24 R01 fr
OPTIWAVE 7400-24 C
6.5.2 Error handling....................................................................................................................... 77
7 Service 81
7.1 Periodic maintenance..................................................................................................... 81
7.2 How to clean the top surface of the device.................................................................... 81
7.3 How to clean horn antennas under process conditions ................................................ 81
7.4 How to replace device components ............................................................................... 81
7.4.1 Service warranty ................................................................................................................... 81
7.4.2 Replacement of the OPTIWAVE 7300 signal converter with the OPTIWAVE 7400 signal con-
verter............................................................................................................................................... 82
7.5 Spare parts availability...................................................................................................84
7.6 Availability of services .................................................................................................... 84
7.7 Returning the device to the manufacturer..................................................................... 84
7.7.1 General information.............................................................................................................. 84
7.7.2 Form (for copying) to accompany a returned device............................................................ 86
7.8 Disposal .......................................................................................................................... 86
8 Technical data 87
8.1 Measuring principle........................................................................................................87
8.2 Technical data................................................................................................................. 88
8.3 Minimum power supply voltage ..................................................................................... 95
8.4 Antenna selection........................................................................................................... 96
8.5 Guidelines for maximum operating pressure................................................................ 97
8.6 Dimensions and weights ................................................................................................ 98
9 Description of HART interface 110
9.1 General description ...................................................................................................... 110
9.2 Software history ...........................................................................................................110
9.3 Connection variants...................................................................................................... 111
9.3.1 Point-to-Point connection - analogue / digital mode......................................................... 111
9.3.2 Multi-Drop connection (2-wire connection) ....................................................................... 111
9.4 HART® device variables............................................................................................... 111
9.5 Field Communicator 475 (FC 475)................................................................................ 111
9.5.1 Installation .......................................................................................................................... 111
9.5.2 Operation............................................................................................................................. 112
9.6 Asset Management Solutions (AMS)............................................................................ 112
9.6.1 Installation .......................................................................................................................... 112
9.6.2 Operation............................................................................................................................. 112
9.6.3 Parameter for the basic configuration ............................................................................... 112
9.7 Field Device Tool / Device Type Manager (FDT / DTM)................................................ 113
9.7.1 Installation .......................................................................................................................... 113
9.7.2 Operation............................................................................................................................. 113
9.8 HART
®
menu tree for Basic-DD .................................................................................. 113
9.8.1 Overview Basic-DD menu tree (positions in menu tree).................................................... 113
9.8.2 Basic-DD menu tree (details for settings).......................................................................... 113
9.9 HART
®
menu tree for AMS .......................................................................................... 114
9.9.1 Overview AMS menu tree (positions in menu tree)............................................................ 115