Honeywell ST 700 User Manual page 9

4 Operation ...................................................................................................................................... 22
4.1 Overview .............................................................................................................................. 22
4.2 Three-Button Operation ........................................................................................................ 22
4.2.1 The Basic Display Menu .............................................................................................. 23
4.2.2 Data Entry ..................................................................................................................... 27
4.2.3 Editing a Numeric value ............................................................................................... 27
4.2.4 Selecting a new setting from a list of choices .............................................................. 27
4.3 Three Button Operation with no Display Installed ............................................................... 28
4.3.1 Zero Adjustment ........................................................................................................... 28
4.3.2 Span Adjustment .......................................................................................................... 28
4.4 Changing the Default Failsafe Direction .............................................................................. 28
4.4.1 DE and Analog Differences .......................................................................................... 28
4.4.2 Procedure to Establish Failsafe Operation .................................................................... 29
4.5 Monitoring the Basic Display ............................................................................................... 32
4.5.1 Basic Display ................................................................................................................ 32
5 Maintenance ................................................................................................................................. 33
5.1 Overview .............................................................................................................................. 33
5.2 Preventive Maintenance Practices and Schedules ................................................................ 33
5.3 Inspecting and Cleaning Barrier Diaphragms ...................................................................... 33
5.4 Replacing the Communication Module ................................................................................ 36
5.5 Replacing the Meter Body .................................................................................................... 38
6 Calibration .................................................................................................................................... 42
6.1 Recommendations for Transmitter Calibration .................................................................... 42
6.2 Calibration Procedures ......................................................................................................... 42
7 Troubleshooting ............................................................................................................................ 43
7.1 Overview .............................................................................................................................. 43
7.2 Critical Diagnostics Screens ................................................................................................. 43
7.2.1 Fault Conditions and Recommended Corrective Actions ............................................ 43
8 Parts List ....................................................................................................................................... 44
8 Parts List ....................................................................................................................................... 44
8.1 Overview .............................................................................................................................. 44
Appendix A. PRODUCT CERTIFICATIONS .................................................................................... 56
Index ..................................................................................................................................................... 68
Revision 2.0 ST 700 Smart Pressure Transmitter User's Manual Page ix