Table of Contents
ST3000 Smart Transmitter Series 900 Electronic Differential Pressure/Pressure Transmitter
Chapter 7 : Maintenance and Troubleshooting
7-1 : Zero Adjustment ..............................................................................................7-1
7-1-1 : Overview ............................................................................................7-1
7-1-2 : Zero Adjustment under Uniform Input Pressure (with SFC)...............7-2
7-1-3 : Zero Adjustment Based on Input Pressure Corresponding to LRV (with SFC)7-3
7-1-4 : Zero Adjustment Based on Actual Level (with SFC) ..........................7-4
7-1-5 : Zero Adjustment Using External Zero Adjustment Mechanism (Option).. 7-5
7-2 : Saving and Restoring Data..............................................................................7-6
7-2-1 : Saving Data........................................................................................7-6
7-2-2 : Restoring Data ...................................................................................7-8
7-3 : Disassembly and Assembly.............................................................................7-9
7-3-1 : Before You Start.................................................................................7-9
7-3-2 : Mount Center Body Cover and Adapter Flange .................................7-10
7-3-3 : Washing the Center Body ..................................................................7-12
7-4 : Calibrating Set Range and Output Signals......................................................7-13
7-4-1 : Calibrating Set Range Based on Reference Input .............................7-13
7-4-1-1: Preparation..............................................................................7-13
7-4-1-2: Calibrating Low Limit ...............................................................7-15
7-4-1-3: Calibrating High Limit ..............................................................7-17
7-4-2 : Calibrating Output Signals .................................................................7-19
7-4-2-1: Before You Start ......................................................................7-19
7-4-2-2: Calibrating Output Signal 0% ..................................................7-20
7-4-2-3: Calibrating Output Signal 100% ..............................................7-22
7-4-2-4: Saving Calibrated Values and Releasing Constant Current Source
Mode.........................................................................................7-24
7-5 : Erasing Calibrated Data ..................................................................................7-25
7-5-1 : Erasing Calibrated Data .....................................................................7-25
7-5-2 : Erasing # Mark ...................................................................................7-26
7-6 : Troubleshooting...............................................................................................7-28
7-6-1 : Checking Operation and Actions........................................................7-28
7-6-2 : Error during Communications ............................................................7-29
7-6-3 : Self-Diagnostic Messages..................................................................7-30
7-6-4 : Self-Diagnostic by Indicator (option) ..................................................7-34
7-7 : Insulation Resistance Test and Withstand Voltage Test .................................7-35