Sigma 980 Mode d'emploi

Cat. No. 97000-18

Model 980 Flow Meter

Operating and Maintenance Manual

December 2002, Ed. 4

Cat. No. 97000-18

Model 980 Flow Meter

Operating and Maintenance Manual

Visit www.americansigma.com

Page 3

970ESTOC.fm Table of Contents

Table of Contents

Safety Precautions.................................................................................................................................................... 8

Specifications .......................................................................................................................................................... 12

Section 1 Introduction ...................................................................................................................................... 17

1.1 Instrument Description ...................................................................................................................................... 17

1.2 Front Panel Features and Controls ................................................................................................................... 18

1.3 Keypad Description ........................................................................................................................................... 19

1.4 Liquid Crystal Display ....................................................................................................................................... 19

1.5 Principle Operation ........................................................................................................................................... 20

INSTALLATION.................................................................................................................................................... 23

Section 2 Installation......................................................................................................................................... 25

2.1 Customer-supplied Equipment.......................................................................................................................... 25

2.2 Unpacking the Instrument ................................................................................................................................. 25

2.2.1 NEMA 4X Applications ............................................................................................................................ 25

2.3 Mounting Options .............................................................................................................................................. 27

2.3.1 Wall Mounting .......................................................................................................................................... 28

2.3.2 Rail/Pole Mounting................................................................................................................................... 29

2.4 Wiring Safety Information.................................................................................................................................. 31

Electrostatic Discharge (ESD) Considerations ................................................................................................. 31

2.5 Wiring the Controller ......................................................................................................................................... 31

2.5.1 Connecting ac Power to the 980 Flow Meter .......................................................................................... 32

2.6 Wiring Optional Devices.................................................................................................................................... 34

2.7 Wiring the 4–20 mA Output............................................................................................................................... 35

2.8 Wiring the Analog Input..................................................................................................................................... 36

2.9 Wiring the Mechanical Totalizer ........................................................................................................................ 38

2.10 Wiring the Alarm Relays ................................................................................................................................. 39

2.11 Wiring the Rain Gauge.................................................................................................................................... 41

2.12 Wiring the Sampler ........................................................................................................................................ 42

2.13 Wiring the RS232 ........................................................................................................................................... 44

2.14 Wiring the Modem Interface ............................................................................................................................ 46

2.15 Wiring the pH Sensor...................................................................................................................................... 47

2.15.1 pH Junction Box to Instrument............................................................................................................... 47

2.15.2 pH Probe to Junction Box ...................................................................................................................... 49

2.16 Wiring the Downlook Ultrasonic Sensor.......................................................................................................... 49

2.17 Wiring the In-Pipe Ultrasonic Sensor .............................................................................................................. 51

2.18 Wiring the Velocity-Only Sensor...................................................................................................................... 51

2.18.1 Bare Lead Sensor Cables ..................................................................................................................... 51

2.18.2 Velocity-Only Sensor Cable Quick-Connect .......................................................................................... 52

2.19 Wiring the Submerged Area Velocity Sensor .................................................................................................. 53

2.19.1 Bare Lead Sensor Cables ..................................................................................................................... 53

2.19.1.1 Junction Box Connection Procedure ........................................................................................ 53

2.19.2 Submerged Area Velocity Sensor Cable Quick-Connect.......................................................................55

2.19.2.1 Desiccant Cartridge .................................................................................................................. 55

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Table of Contents 970ESTOC.fm

Table of Contents

OPERATION......................................................................................................................................................... 57

Section 3 Basic Programming Setup ........................................................................................................... 59

3.1 Initial Power-Up of Meter................................................................................................................................... 59

3.2 Basic Programming........................................................................................................................................... 59

Step 1 - Setup................................................................................................................................................... 59

Step 2 - Flow Units ........................................................................................................................................... 60

Step 3 - Level Units .......................................................................................................................................... 61

Step 4 - Primary Device.................................................................................................................................... 61

Step 5 - Program Lock...................................................................................................................................... 63

Step 6 - Sampler Pacing................................................................................................................................... 63

Step 7 - Site ID ................................................................................................................................................. 63

Step 8 - Total Flow Units .................................................................................................................................. 64

Step 9 - Velocity Direction (only when logging velocity) ................................................................................... 64

3.3 Starting and Stopping Programs....................................................................................................................... 65

Section 4 External Device Setup.................................................................................................................... 67

4.1 4–20 mA Output ................................................................................................................................................ 67

4.1.1 Programming the 4–20 mA Output ......................................................................................................... 67

4.1.2 Calibrating the 4–20 mA Output .............................................................................................................. 68

4.2 Analog Input...................................................................................................................................................... 70

4.2.1 Programming the Analog Inputs .............................................................................................................. 70

4.3 Mechanical Totalizer.......................................................................................................................................... 71

4.3.1 Programming the Mechanical Totalizer.................................................................................................... 71

4.3.1.1 Modify Setup ............................................................................................................................... 71

4.3.1.2 Reset (Totalizer) ......................................................................................................................... 72

4.4 Alarm Relays..................................................................................................................................................... 73

4.4.1 Programming the Alarm Relays............................................................................................................... 73

4.4.1.1 Trouble Alarms ........................................................................................................................... 73

4.4.1.2 Set Point Alarms ......................................................................................................................... 74

4.5 Rain Gauge....................................................................................................................................................... 74

4.5.1 Programming the Rain Gauge ................................................................................................................. 74

4.6 Sampler............................................................................................................................................................. 75

4.6.1 Programming a Sampler Connection ...................................................................................................... 75

4.7 RS232 ............................................................................................................................................................... 75

4.7.1 Programming the RS232 ......................................................................................................................... 75

4.8 Modem Interface ............................................................................................................................................... 76

4.8.1 Programming the Modem ........................................................................................................................ 76

4.9 pH Sensor ......................................................................................................................................................... 77

4.9.1 Programming the pH Sensor ................................................................................................................... 77

4.9.2 Calibrating the pH Sensor ....................................................................................................................... 77

4.10 Downlook Ultrasonic Sensor ........................................................................................................................... 78

4.10.1 Installing an Ultrasonic Sensor (Downlook) at a Primary Device .......................................................... 79

4.10.1.1 Choosing the Appropriate Sensor Height (Ultrasonic “Downlook” Sensor) .............................. 79

4.10.1.2 Mounting the Ultrasonic Sensor................................................................................................ 81

4.10.2 Ultrasonic Senor (Downlook) Installation Troubleshooting .................................................................... 83

4.10.3 Programming the Downlook Ultrasonic Sensor ..................................................................................... 84

4.10.4 Calibrating the Downlook Ultrasonic Sensor ......................................................................................... 84

4.10.4.1 Liquid Depth.............................................................................................................................. 84

Table of Contents

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970ESTOC.fm Table of Contents

4.10.4.2 Sensor Height ........................................................................................................................... 85

4.10.4.3 Setting the Invisible Range ....................................................................................................... 86

4.11 In-Pipe Ultrasonic Sensor ............................................................................................................................... 87

4.11.1 Mounting the In-Pipe Sensor ................................................................................................................. 87

4.11.2 Beam Angle ........................................................................................................................................... 88

4.11.3 Programming the In-Pipe Ultrasonic Sensor ......................................................................................... 88

4.11.4 Calibrating the In-Pipe Ultrasonic Sensor.............................................................................................. 88

4.11.4.1 Liquid Depth.............................................................................................................................. 89

4.11.4.2 Sensor Height ........................................................................................................................... 89

4.11.4.3 Setting the Invisible Range ....................................................................................................... 90

4.11.5 Protecting the In-Pipe Ultrasonic Sensor............................................................................................... 90

4.11.6 In-Pipe Ultrasonic Sensor Troubleshooting............................................................................................ 90

4.12 Velocity-Only Sensor....................................................................................................................................... 90

4.12.1 Programming the Velocity-Only Sensor................................................................................................. 91

4.12.2 Calibrating the Velocity-Only Sensor ..................................................................................................... 91

4.12.3 Installing the Velocity-Only Sensor in a Pipe ......................................................................................... 92

4.12.3.1 Important Guidelines for Velocity-Only Sensor Installation....................................................... 92

4.12.3.2 Choosing a Mounting Band ...................................................................................................... 92

4.12.3.3 Connecting the Sensor to the Mounting Bands ........................................................................ 92

4.12.3.4 Compensating for Velocity Direction......................................................................................... 94

4.12.3.5 Placing the Sensor and Mounting Band into the Pipe .............................................................. 94

4.13 Submerged Area Velocity Sensors ................................................................................................................. 95

4.13.1 Programming the Submerged Area/Velocity Sensor ............................................................................. 95

4.13.2 Calibrating the Submerged Area/Velocity Sensor.................................................................................. 96

4.13.3 Installing a Submerged Area/Velocity Sensor in a Pipe......................................................................... 97

4.13.3.1 Important Guidelines for Submerged Area/Velocity Sensor Installation ................................... 97

MAINTENANCE................................................................................................................................................... 99

Section 5 Maintenance ................................................................................................................................... 101

5.1 Routine Maintenance ...................................................................................................................................... 101

5.1.1 Calibration ............................................................................................................................................. 101

5.1.2 Cleaning the Case ................................................................................................................................. 101

5.2 Upgrades, Repairs, General Maintenance ...................................................................................................... 101

5.2.1 Internal Maintenance Items ................................................................................................................... 101

5.2.2 Opening the Front Panel........................................................................................................................ 101

5.3 Fuse Replacement .......................................................................................................................................... 102

5.4 Memory Batteries............................................................................................................................................ 103

5.5 Ultrasonic Sensor Maintenance ...................................................................................................................... 103

5.6 Cleaning and Maintaining Submerged Area/Velocity Sensors....................................................................... 104

5.6.1 Submerged Area/Velocity Sensor Cleaning Procedure ........................................................................ 104

5.6.2 Changing the Desiccant ....................................................................................................................... 105

5.6.3 Desiccant Replacement Procedure ...................................................................................................... 105

5.6.4 Hydrophobic Filter Description ............................................................................................................. 106

5.6.5 Hydrophobic Filter Replacement Procedure......................................................................................... 107

Appendix A Working with Primary Devices ....................................................................................................... 109

Working with Primary Devices and Sensor Operation.................................................................................... 109

Setting an Offset (For Use in a Weir) ............................................................................................................. 109

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Table of Contents 970ESTOC.fm

Table of Contents

Types of Primary Devices............................................................................................................................... 109

Appendix B Troubleshooting Measurement Errors ........................................................................................... 115

Troubleshooting Measurement Errors From Electromagnetic Fields ............................................................. 115

Appendix C Programming Features .................................................................................................................. 117

Review All Items ............................................................................................................................................. 117

Displaying Data .............................................................................................................................................. 117

Selecting the Channel .................................................................................................................................... 117

Tabular or Graph Format................................................................................................................................ 118

Graph Manipulation ........................................................................................................................................ 119

Graphic Display Averaging ............................................................................................................................. 119

Options Features ............................................................................................................................................ 119

Setting the Time and Date.............................................................................................................................. 120

Advanced Options .......................................................................................................................................... 120

Alarms ............................................................................................................................................................ 121

Data Log ......................................................................................................................................................... 122

Logging Intervals ............................................................................................................................................ 122

Data Logging Memory Allocation Options ...................................................................................................... 123

Datalogging Configurations ............................................................................................................................ 123

Diagnostics ..................................................................................................................................................... 124

Keypad Test ................................................................................................................................................... 124

LCD Test ........................................................................................................................................................ 125

Demonstration Graph ..................................................................................................................................... 125

Velocity Analysis............................................................................................................................................. 125

Event Log ....................................................................................................................................................... 125

Set Point Sampling ......................................................................................................................................... 126

Storm Water ................................................................................................................................................... 128

Appendix D Programming Worksheet ............................................................................................................... 129

Appendix E SCADA-Modbus® System Guidelines ........................................................................................... 133

Introduction to SCADA - Modbus Communications........................................................................................ 133

ASCII Transmission Mode.............................................................................................................................. 133

Address Field.................................................................................................................................................. 133

Function Field ................................................................................................................................................. 134

Data Field ....................................................................................................................................................... 134

LRC Field........................................................................................................................................................ 134

Communication Parameters ........................................................................................................................... 135

User Memory Customizing ............................................................................................................................. 135

Modbus ASCII Function Codes Supported..................................................................................................... 135

Query.............................................................................................................................................................. 137

Response ....................................................................................................................................................... 138

980 Flow Meter Response Time..................................................................................................................... 138

Complications with Floating Point Values....................................................................................................... 139

Port Expanders and Protocol Converters ....................................................................................................... 140

Other Reference Material ............................................................................................................................... 140

Troubleshooting Tips ...................................................................................................................................... 140

980 SCADA-Modbus “No Response” Troubleshooting Flow Chart (1 of 5) ................................................... 143

980 SCADA-Modbus “No Response” Troubleshooting Flow Chart (2 of 5) ................................................... 144

Table of Contents

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970ESTOC.fm Table of Contents

980 SCADA-Modbus “No-Response” Troubleshooting Flow Chart (3 of 5) ................................................... 145

980 SCADA-Modbus “No-Response” Troubleshooting Flow Chart (4 of 5) ................................................... 146

980 SCADA-Modbus “No Response” Troubleshooting Flow Chart (5 of 5) ................................................... 147

Appendix F 980 Quick-Start Guides .................................................................................................................. 149

Main Program Flow Chart............................................................................................................................... 149

980 Flow Meter Basic Programming Setup Flow Chart ................................................................................ 150

980 Flow Meter Advanced Options Flow Chart .............................................................................................. 151

980 Alarms Flow Chart ................................................................................................................................... 152

980 Flow Meter Calibration Flow Chart .......................................................................................................... 153

GENERAL INFORMATION .............................................................................................................................. 155

Parts and Accessories .......................................................................................................................................... 157

Ordering and Technical Support ........................................................................................................................... 159

Repair Service ...................................................................................................................................................... 160

Warranty ............................................................................................................................................................... 161

Certification ........................................................................................................................................................... 162

Index ..................................................................................................................................................................... 165

Page 8

Safety Precautions Safety.fm

Safety Precautions

Please read this entire manual before unpacking, setting up, or operating this instrument.

Pay particular attention to all danger and caution statements. Failure to do so could result in serious injury to the

operator or damage to the equipment.

To ensure the protection provided by this equipment is not impaired, do not use or install this equipment in any

manner other than that which is specified in this manual.

Use of Hazard Information

If multiple hazards exist, this manual will use the signal word (Danger, Caution, Note) corresponding to the

greatest hazard.

DANGER

Indicates a potentially or imminently hazardous situation which, if not avoided, could result in

death or serious injury.

CAUTION

Indicates a potentially hazardous situation that may result in minor or moderate injury.

NOTE

Information that requires special emphasis.

Precautionary Labels

Read all labels and tags attached to the instrument. Personal injury or damage to the instrument could occur if

not observed.

This symbol, if noted on the instrument, references the instruction manual for operation

and/or safety information.

This symbol, when noted on a product enclosure or barrier, indicates that a risk of electrical shock

and/or electrocution exists and indicates that only individuals qualified to work with hazardous voltages

should open the enclosure or remove the barrier.

This symbol, when noted on the product, identifies the location of a fuse or current limiting device.

This symbol, when noted on the product, indicates that the marked item can be hot and should not be

touched without care.

This symbol, when noted on the product, indicates the presence of devices sensitive to Electro-static

Discharge and indicates that care must be taken to prevent damage to them.

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