Honeywell RM640 Handbook page 7

RM640
7 Service
7.1 Periodic maintenance................................................................................................... 121
7.1.1 General notes...................................................................................................................... 121
7.1.2 Maintenance of the O-rings for the housing covers........................................................... 121
7.1.3 How to clean the top surface of the device......................................................................... 122
7.1.4 How to clean horn antennas under process conditions..................................................... 122
7.2 Service warranty........................................................................................................... 123
7.3 Replacement of the SmartLine® RM60 signal converter with the RM640 signal convert-
er.......................................................................................................................................... 124
7.4 Spare parts availability................................................................................................. 127
7.5 Availability of services .................................................................................................. 127
7.6 Returning the device to the manufacturer................................................................... 127
7.6.1 General information............................................................................................................ 127
7.6.2 Form (for copying) to accompany a returned device.......................................................... 128
7.7 Disposal ........................................................................................................................ 128
8 Technical data
8.1 Measuring principle...................................................................................................... 129
8.2 Technical data............................................................................................................... 131
8.3 Measuring accuracy ..................................................................................................... 137
8.4 Minimum power supply voltage ................................................................................... 138
8.5 Guidelines for maximum operating pressure.............................................................. 139
8.6 Dimensions and weights .............................................................................................. 141
9 Description of HART interface
9.1 General description ...................................................................................................... 151
9.2 Software history ........................................................................................................... 152
9.3 Connection variants...................................................................................................... 152
9.3.1 Point-to-Point connection - analogue / digital mode ........................................................ 152
9.3.2 Multi-Drop connection (2-wire connection) ....................................................................... 153
9.4 HART® device variables............................................................................................... 153
9.5 Field Communicator 475 (FC 475)................................................................................ 153
9.5.1 Installation .......................................................................................................................... 153
9.5.2 Operation............................................................................................................................. 154
9.6 Asset Management Solutions (AMS
9.6.1 Installation .......................................................................................................................... 154
9.6.2 Operation............................................................................................................................. 154
9.6.3 Parameter for the basic configuration ............................................................................... 154
9.7 Field Device Tool / Device Type Manager (FDT / DTM) ................................................ 155
9.7.1 Installation .......................................................................................................................... 155
9.7.2 Operation............................................................................................................................. 155
9.8 Process Device Manager (PDM)................................................................................... 155
9.8.1 Installation .......................................................................................................................... 155
9.8.2 Operation............................................................................................................................. 155
34-VF-25-131 iss.1 GLO Feb 2019 US
®
) ......................................................................... 154
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