KROHNE VFM 3100 EN - Manual (Page 2)

3.2. No Output Troubleshooting 27
3.3. Module Test Procedure 28
3.4. Preamplifier Test Procedure 28
3.4.1. Extended Temperature Range Sensor 28
3.4.2. Standard Temperature Range Sensor 28
3.5. Sensor Test Procedure 29
3.5.1. Standard Temperature Range Sensor 29
3.5.2. Extended Temperature Range Sensor 29
4. Maintenance 29
4.1. Introduction 29
4.1.1. Vortex Generation and Shedding 29
4.1.2. Vortex Sensing 29
4.1.3. Amplification, Conditioning and Processing 29
4.2. Electronic Module 30
4.2.1. Electronic Module Removal 30
4.3. Electronic Module Replacement 33
4.4. Preamplifier 34
4.4.1. Preamplifier Removal 34
4.4.2. Replacing the Preamplifier 35
4.5. Post-Assembly Dielectric Test 37
4.6. Sensor Replacement with Integral Electronic Module 37
4.6.1. Disassembly 37
4.6.2. Replacing the Sensor 38
4.7. Sensor Replacement with Remote Electronic Module 41
4.7.1. Disassembly 41
4.7.2. Assembly 42
5. Determining Special Measuring Units 43
6. Isolation Valves 43
6.1. Replacing the Sensor 43
6.2. Replacing or Installing an Isolation Valve 44
7. HART Configuration Instructions 45
7.1. Introduction 45
7.2. HART Menu Structure 45
8. Local Configuration Instructions 49
8.1. Introduction 49
8.2. Using the Local Configurator 49
8.2.1. Measurements (MEASURE) 49
8.2.2. Display Bar Indicator 49
8.2.3. Moving inside the Menu System 49
8.2.4. Viewing Data (DISPLAY) 50
8.2.5. Answering a Question 50
2
1. Installation 6
1.1. Introduction 6
1.1.1. Description 6
1.1.2. Fundamental Installation Requirements 6
1.1.3. Standard Specifications 7
1.1.4. Electrical Safety Specifications 8
1.1.5. Unpacking 8
1.1.6. VFM 3100 Identification 8
1.2. Mechanical Installation 9
1.2.1. Piping Considerations 9
1.2.2. Installation Position 10
1.2.3. Ambient Temperature 10
1.2.4. Vibration 10
1.2.5. Installation Procedure 12
1.2.6. Repositioning the Electrical Housing 12
1.2.7. VFM 3100 with Remote Electronic Module 13
1.3. Field Termination 19
1.3.1. Conduit Connections 19
2. Operating the VFM 3100 22
2.1. Introduction 22
2.2. Passwords 22
2.3. Configuration Database 22
2.4. Changing the Configuration (Configuration Menu) 23
2.4.1. Identification Parameters 23
2.4.2. Transmitter Options 23
2.4.3. Process Fluid Parameters 25
2.4.4. Application Parameters 25
2.4.5. Output Options 25
2.5. Preconfiguring the VFM 3100 26
2.6. Displaying the Configuration Database 26
2.7. Adjusting the VFM 3100 26
2.7.1. mA Calibration (D/A Trim) 26
2.7.2. Total Reset 26
2.7.3. Low Flow Cut-In 26
2.7.4. Upper Range Value 26
2.8. Reading the Measurements 26
2.9. Testing the VFM 3100 and Loop (Test Menu) 26
2.9.1. Self-Test 26
2.9.2. Loop Test or Loop Calibration 26
2.10. Electronic Module Replacement 26
3. Troubleshooting 27
3.1. General Troubleshooting 27
3.1.1. VFM 3100 Has Incorrect Output 27
3.1.2. VFM 3100 Output Indicates Flow When
There Is No Flow 27
3.1.3. VFM 3100 Output Indicates Higher
Flow Rate with Decreasing Flow 27
3.1.4. Fluctuating Output 27
Contents