Sigma 980 user guide
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
© American Sigma, 2002. All rights reserved. Printed in the U.S.A. eac/dp 12/02 4ed
Visit www.americansigma.com
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
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
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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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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
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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
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970ESTOC.fm Table of Contents
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.
Page 8
Safety Precautions
Safety.fm
This symbol, when noted on the product, identifies a risk of chemical harm and indicates that only
individuals qualified and trained to work with chemicals should handle chemicals or perform
maintenance on chemical delivery systems associated with the equipment.
This symbol, if noted on the product, indicates the need for protective eye wear.
This symbol, when noted on the product, identifies the location of the connection for Protective Earth
(ground).
Confined Space Entry
Important Note: The following information is provided to guide users of 980 Flow
Meters on the dangers and risks associated with entry into confined spaces.
DANGER
Pour éviter les accidents mortels dans les espaces confinés, il faut
DANGER
Additional training in PreEntry Testing, Ventilation,
Entry Procedures,
Evacuation/Rescue
Procedures and Safety Work
Practices is necessary to
ensure against the loss of life
in confined spaces.
organiser des formations supplémentaires dans les matières suivantes:
Contrôle avant entrée, Ventilation, Procédures d'entrée, Procédures
d'évacuation et de secours et Méthodes de travail sûres.
PELIGRO
Para prevenir accidentes mortales en espacios reducidos se necesita
una formación adicional sobre Procedimientos de Comprobación previa
a la Entrada, Ventilación, Entrada y Evacuación/Rescate así como sobre
Buenas Prácticas para la Seguridad en el Trabajo.
Safety Precautions
GEFAHR
Die Arbeit unter beengten Verhältnissen in geschlossenen Behältern
bzw. völlig abgeschlossenen Räumlichkeiten ist nur mit spezieller
Ausbildung zulässig, da sie - zur Vermeidung lebensgefährlicher
Situationen - besondere Prüfungen vor dem Einstieg, Kontrollen der
Belüftungsverhältnisse, Einstiegverfahren, Ausstiegs/Flucht-
sicherungsmaßnahmen sowie weitere Sicherheits- und Arbeits-
schutzschritte voraussetzt!
PERICOLO
Attuare esercitazioni integrative prima di iniziare un'analisi, Corretta
Ventilazione dei locali, Procedure di Ingresso, Procedure di
Evacuazione/Sicurezza e Pratiche di Sicurezza sul Lavoro sono
necessarie per evitare incidenti mortali negli spazi adiacenti.
On April 15, 1993, OSHA's final ruling on CFR 1910.146, Permit Required
Confined Spaces, became law. This new standard directly affects more than
250,000 industrial sites in the United States and was created to protect the
health and safety of workers in confined spaces.
Page 9
Safety.fm Safety Precautions
Safety Precautions
Definition of Confined Space
A Confined Space is any location or enclosure that presents or has the
immediate potential to present one or more of the following conditions:
• An atmosphere with less than 19.5% or greater than 23.5% oxygen
and/or more than 10 ppm Hydrogen Sulfide (H
• An atmosphere that may be flammable or explosive due to gases, vapors,
mists, dusts, or fibers
• Toxic materials which upon contact or inhalation, could result in injury,
impairment of health, or death
Confined spaces are not designed for human occupancy. They have restricted
entry and contain known or potential hazards.
Examples of confined spaces include manholes, stacks, pipes, vats, switch
vaults, and other similar locations.
Standard safety procedures must always be followed prior to entry into
confined spaces and/or locations where hazardous gases, vapors, mists,
dusts, or fibers may be present.
S)
2
Hazardous Locations
Before entering any confined space check with your employer for procedures
related to confined space entry.
The 980 Flow Meter is not approved for use in hazardous locations as defined
in the National Electrical Code.
Page 10
Safety Precautions
Safety.fm
DANGER
Although some Sigma
products are designed and
certified for installation in
hazardous locations as
defined by the National
Electrical Code, many Sigma
products are not suitable for
use in hazardous locations. It
is the responsibility of the
individuals who are installing
the products in hazardous
locations to determine the
acceptability of the product
for the environment.
Additionally, to ensure safety,
the installation of
instrumentation in hazardous
locations must be per the
manufacturer's control
drawing specifications. Any
modification to the
instrumentation or the
installation is not
recommended and may result
in life threatening injury
and/or damage to facilities.
Safety Precautions
DANGER
Bien que certains produits Sigma soient conçus et certifiés pour être
installés dans des endroits dangereux tels que définis par le National
Electric Code, de nombreux produits Sigma ne conviennent pas pour de
tels endroits. Il relève de la responsabilité des personnes qui placent les
produits dans des endroits dangereux de déterminer s'ils sont adaptés à
cet environnement. En outre, à des fins de sécurité, le placement de
machines dans des endroits dangereux doit s'effectuer dans le respect
des consignes des schémas de contrôle du fabricant. Toute
modification apportée aux machines ou tout déplacement de celles-ci
est déconseillé, car susceptible de provoquer des accidents matériels
et/ou corporels.
PELIGRO
Aunque algunos productos Sigma están diseñados y homologados para
su instalación en entornos peligrosos, entendidos éstos conforme a la
definición del “National Electrical Code” (Reglamento Eléctrico
Nacional), muchos de los productos Sigma no son aptos para su
utilización en lugares peligrosos. Es responsabilidad de quienes
instalen los productos en entornos peligrosos el asegurarse de la
idoneidad de dichos productos para este tipo de entorno. Además, para
garantizar la seguridad, la instalación de los instrumentos en lugares
peligrosos deberá realizarse conforme a las especificaciones del plano
del fabricante. Se desaconseja cualquier modificación de los
instrumentos o de la instalación, ya que podría provocar lesiones
corporales graves, e incluso fatales, y/o daños materiales a los equipos.
GEFAHR
Einige Sigma-Produkte sind für den Einbau in explosionsgefährdeten
Bereichen gemäß den Festlegungen des National Electrical Code
speziell geprüft und zugelassen. Dies gilt jedoch keineswegs für das
gesamte Sigma-Produktangebot. Die Entscheidung, ob ein Produkt für
den Einsatz in explosionsgefährden Bereichen geeignet ist oder nicht,
bleibt in die Verantwortung des jeweiligen Installateurs gestellt. Im
Interesse der Sicherheit ist es zudem erforderlich, dass ein etwaiger
Einbau des Geräts in explosionsgefährdeten Bereichen genau nach den
Steuerungsanlagen-Zeichnungen des Herstellers erfolgt. Von der
Vornahme von Änderungen an meß- bzw. regeltechnischen Geräten
bzw. abweichender Installation wird dringend abgeraten, da hierdurch
lebensbedrohliche Personen- und/oder Sachschäden verursacht werden
können!
PERICOLO
Nonostante alcuni prodotti Sigma, siano predisposti e certificati per
l'installazione in ambienti pericolosi, come previsto dal Codice
Normativo Nazionale che concerne l'elettricità, è sconsigliabile utilizzare
prodotti Sigma in ambienti considerati pericolosi. E' diretta
responsabilità della persona che installa lo strumento in un luogo
ritenuto “pericoloso” appurare se lo strumento è compatibile con tale
ambiente. Inoltre, per maggior sicurezza, l'installazione dello strumento
in ambienti pericolosi deve seguire le specifiche di progettazione del
produttore. Si deve evitare qualunque manomissione allo strumento o
all'installazione, tali modifiche possono rappresentare una minaccia per
la vita delle persone e creare guasti.
Page 11
Safety.fm Safety Precautions
Specifications
980 Flow Meter
Specifications are subject to change without notice.
General
Dimensions 14.62" H x 11.88" W x 8.26" D
Weight 7.62 kg (16.80 lb)
Enclosure NEMA 4X, IP 66 with front cover closed, UV resistant
Mounting Wall mount and Rail/Pole mount
Graphics Display
Keypad
Tota lize rs
Measurement Modes
Graphics Display: Back-lit liquid crystal display (LCD). 8 line × 40 character in text
mode, 64 × 240 pixels in graphics mode. Displays level vs. time, flow vs. time, rainfall
vs. time, pH, and temperature.
Keypad: 19-position sealed-membrane switch including four “soft keys,” functions
defined by display.
8-digit resettable and 8-digit non-resettable software
Units: ft³, gal, m³, liter, acre-ft
Flumes: Parshall, Palmer Bowlus, Leopold-Lagco, H, HL, HS, Trapezoidal
Weirs: V-notch, Contracted/Non-contracted rectangular, Thel-mar, Compound
Cipolletti, Compound V-notch
Manning Equation: Round, U, Rectangular, and Trapezoidal Channels
Head vs. Flow: Two independent user-entered look-up tables of up to 100 points each.
Level only: Inches, feet, centimeters, meters
Area Velocity: Level-area table, circular pipe, U-shaped channel, trapezoidal channel,
rectangular channel.
Power Equation:
QK1H
n
1
K2H
±=
n
2
Data Logging
Electrical
Power Specifications 0.25 amp maximum
Power Requirements 100–230 V ac, 50/60 Hz, single phase, 15 W max (0.25 amp max)
Installation Category II
Electrical Connection Seven 0.5 in. hubs, One 1.0 in. hub
Sampler Output 15 V dc, 100 mA at 500 ms duration
Environmental (for Controller)
Temperature Ranges
Humidity 0–90%, Non-condensing
“Smart” Dynamic memory allocation automatically partitions memory to provide the
maximum logging time. No manual memory partitioning required.
Capacity: Up to 456k bytes, 402 days of level, velocity, and rainfall readings at
15 minute intervals plus 300 events.
Memory Mode: Wrap-around
Data Points: 116,000 data points
Daily statistics: Available for up to 32 days
Recording Intervals: 1, 2, 3, 5, 6, 10, 12, 15, 20, 30, 60 minutes
Time base accuracy: ± 6 seconds (0.007%) per day
Storage: -20 °C to 70 °C (-4 °F to 158 °F)
Operating: -20 °C to 50 °C (-4 °F to 122 °F)
Page 12
Specifications
Specs.fm
Integral pH Meter
Control/Logging
pH Sensor
Measurement Range 2 to 12 pH
Specifications
Field selectable to log pH independent of flow or in conjunction with flow; also controls
sample collection in response to value of low/high stipends
Temperature compensated; impact resistant ABS plastic body
Combination electrode with porous Teflon junction.
Operating Temperature
Range
Dimensions 19.5 mm × 15.24 cm long (0.75 in. dia. × 6 in.) with 19.5 mm (0.75 in.) npt cable end
Rain Gauge Input
General Information
Analog Input Channels
General Information
4–20 mA Output
General Information Two isolated output signals available. User assignable.
Maximum Resistive Load 600 ohms
Output Voltage 24 V dc—no load
Alarm Relays
General Information
Relay Contact Ratings 5 amps, (30–230 V ac)
-18 to 80 °C (0 to 176 °F)
For use with Tipping Bucket Rain Gauge.
Flow measurement can be initiated upon field selectable rate of rain.
Flow meter records rainfall data.
Shielded cable, 100 ft length maximum
Each tip = 0.25 mm (0.01 in.) of rain.
Up to 7 additional data logging channels record data from external source(s)
Four channels with -4.5 to 4.5 V dc input with 1 meg ohm input impedance on each
channel and three channels with 4–20 mA input.*
4 intergral alarm relays; form C (common, normally open, normally closed), 5 amp.
Connection to instrument through terminal blocks.
Communications
General Information
RS-232—up to 19,200 baud
Modem—14400 bps., V.32 bis, V.42, MNP2-4 error correction. V.42 bis MNP5 data
compression. MNP 10-EC Cellular Protocol
Pager
®
SCADA–Modbus
communication protocol (standard) via RS232 or optional modem
Page 13
Specifications
Specifications
Ultrasonic Transducer
Operating Frequency 75 kHz
Beam Angle ±12° (-10 dB)
Accuracy* ±0.03 ft over 2-ft change in head, @ 20 °C, still air, ideal target, 50 ft cable
Range
Operating Temperature
Range
Material PVC housing with acoustic window
Weight 1.5 lb
Cable Low-loss cable, coax cable RG 62/U
11.5 in. (minimum) to 10.7 ft (maximum), with ideal target @ 20° C, in still air with
50-ft cable.
-20 °C to 50 °C (-4 °F to 122 °F)
Cable Length
Mounting Permanent and Adjustable Mounting Brackets
Dimensions (transducer only) 12.7 cm x 5.7 cm (5.0" H x 2.25" D)
Connection Bare wire lead connection via terminal blocks
In-Pipe Ultrasonic Sensor
Operating Frequency 75 kHz
Accuracy
Range
Resolution 0.0075 inches
Operating Temperature
Range
Storage Temperature -20 to 60 °C (-4 to 140 °F)
Temperature Error 0.00005 meter/°C typical
Material Stat-Kon A-E ABS Plastic
Cable Length 7.6 m (25 ft) standard, custom lengths up to 200 m (500 feet)
25 ft (7.6 m) standard, custom lengths up to 500 ft (contact manufacturer for
performance information at custom lengths)
±0.014 ft for sensor to liquid distance between 2.86 inches and 13.5 ft at ±1 ft change
in head from calibration point, 20 °C still air, ideal target, 50 ft cable.
Distance from sensor to liquid: 0.64 inches (minimum) to 13.5 feet (maximum), @ 20
°C still air, ideal target, 50 ft cable.
-20 to 60 °C (-4 to 140 °F)
Dimensions (transducer only) 4.44 cm (1.75 in.) maximum diameter, 31.435 cm (12.375 in.) long
Mounting
Connection Bare lead connection via terminal blocks
Page 14
Specifications
Dedicated Mounting Rings, Permanent Mounting Bracket (installs directly to pipe wall),
Adjustable Mounting Band Kit.
Specifications
Velocity Transducer
Method Doppler Principle
Accuracy* ±2% of reading; Zero Stability: ±1.52 cms (±0.05 fps)
Range -1.52 to 6.1 m (-5 to +20 fps)
Resolution 0.3 cms (0.01 fps)
Response Time 4.8 seconds
Profile Time 4.8 seconds
Probe Dimensions
Cable Urethane sensor cable, shielded
Cable Length 7.6 m (25 ft), custom cable lengths up to 100 ft
Mounting
Connection Sensor connector to Quick connect hub or bare leads connection via terminal block.
Length: 6.9 cm (2.7 in.)
Width: 3.81 cm (1.5 in.)
Height: 1.1 cm (0.44 in.)
Dedicated Mounting Rings (mounting clips recommended for pipe diameters 8 in. or
under), Mounting Plate (for permanent mounting—drills to pipe wall), Adjustable
Mounting Band Kit
Page 15
Specifications
Specifications
Submerged Area Velocity Probe
Method Doppler Principle / Pressure Transducer
Material Polyurethane body, 316 series stainless steel diaphragm
Cable Urethane sensor cable with air vent, shielded
Cable Length 7.6 m (25 ft) standard, custom cable up to 100 ft
Probe Dimensions
Mounting
Connection
Velocity
Depth
Length: 12.7 cm (5 inches)
Width: 3.81 cm (1.5 inches)
Height: 2.03 cm (0.8 inches)
Dedicated Mounting Rings (mounting clips recommended for pipe diameters 8 in. or
under), Mounting Plate (for permanent mounting—drills to pipe wall) Adjustable
Mounting Band Kit.
Sensor connector to quick-connect hub, bare lead connection via terminal block or
bare lead connection to junction box with bare lead junction box via terminal block.
Velocity Accuracy: ± 2% of reading; Zero stability: <0.05 fps (<0.015 m/s)
Response Time: 4.8 sec.
Profile Time: 4.8 sec.
Range: -1.52 to 6.1 m/s (-5 to +20 fps)
Resolution: 0.0028 m/s (0.01 fps)
Operating Temperature: -18° to 60 °C (0° to 140 °F)
Depth Accuracy: ±2% of reading
Maximum Allowable Level: 3X over pressure
Operating Temperature Range: 0° to 71 °C (32° to 160 °F)
Compensated Temperature Range: 0 to 30 °C (32 to 86 °F)
Temperature Error:
0.005 to 3.5 m ±0.0022 m/°C (0.018 to 11.5 ft ±0.004 ft/°F)
0.005 to 10.5 m ±0.006 m/°C (0.018 to 34.6 ft ±0.012 ft/°F)
(maximum error within compensated temperature range - per degree of change)
Draw down correction**:
0 to 3.05 mps (0 to 10 fps) = 0.085% of reading
Air Intake: Atmospheric pressure reference is desiccant protected
* See Troubleshooting Measurement Errors on page 115.
** U.S. Patent 5,691,914
Page 16
Specifications
Section 1 Introduction
980
1.1 Instrument Description
The 980 Flow Meter is an ultrasonic level detection meter with rugged,
NEMA 4X, IP66 construction. The 980 Flow Meter case has several unique
features, all designed to simplify installation, operation, and maintenance. All
controls are located within easy reach on the front panel behind a clear,
protective front cover.
The 980 Flow Meter has eight wiring holes located along the bottom of the
case. The one 1.38 in. and the seven 0.875 in. conduit holes provide easy
access for all power, sensor, control, and communications wiring.
Connections to the 980 Flow Meter are made in the wiring panel behind the
front cover. The interface connector ports are located on the bottom of the
instrument. The 980 Flow Meter comes standard with a quick-connect RS232
serial communications port.
Figure 1 980 Flow Meter
980980
In addition, the flow meter can connect to a wide variety of optional
peripheral devices:
• 4–20 mA Current Loop • Rain Gauge
• Up to three 4–20 mA Inputs • Sampler
• Up to four 4.5 V dc Inputs • pH Sensor
• Mechanical Totalizer • Modem
Page 17
Introduction
Section 1
The 980 Flow Meter is available with one of the depth/velocity measurement
technologies:
• Ultrasonic Sensor • Area Velocity/Submerged Sensor
• Velocity Sensor
1.2 Front Panel Features and Controls
The 980 Flow Meter front panel features the keypad and the liquid crystal
display (LCD). The side of the 980 Flow Meter provides a connection for an
RS232 serial interface temporary connection.
The clear front cover of the instrument protects the control panel and display
window while providing a clear view of the flow meter status on the display.
The cover perimeter contains a gasket seal to keep moisture and dirt from
entering the front panel area. This seal is required to maintain the NEMA 4X
rating of the case.
Figure 2 Front Panel
123
980
4
5
1. Clear Front Cover 4. Function Keys
2. Soft Keys 5. Numeric Keypad
3. LCD Display
Page 18
Front Panel Features and Controls
1.3 Keypad Description
Section 1
The 980 Flow Meter keypad has three components: numeric keypad, soft
keys, and function keys. (See Figure 2).
Numeric Keypad
The numeric keypad consists of the digits 0 through 9, a +/- key, and a
decimal key.
“Soft” Keys
Soft keys are blank, white keys located to the left and right of the display.
The appearance of each function key depends on the display. The soft key
labels appear on the display and point (with a straight line) to the proper soft
key to push for that action. If no function is shown for a specific key, that key is
not currently active.
In some cases during a programming step, an item from a list needs to be
selected. The soft keys on the right side of the display will change to display
“up” and “down” arrows. Us then to scroll up and down the list of choices.
When the desired choice is highlighted, press the
Function Keys
Three dedicated function keys are used to allow quick access to
frequently used functions. They are the white keys located just above
the numeric keypad.
SELECT soft key.
Function Key Description
Main Menu
This is the starting point to access any other point in the program. Press the Main Menu key at any time
during programming to return to the Main Menu Screen. The current action is cancelled if changes are not
yet accepted.
Level Adjust
Adjust the flow meter to match the current head (or level contributing flow) in the channel.
Run/Stop
Runs (or resumes) a program. Stops a currently running program.
1.4 Liquid Crystal Display
The 980 Flow Meter liquid crystal display (LCD) works in conjunction with
the four soft keys. When a soft key changes function, the display shows
the new function.
Menu Bar
The Menu Bar appears in a black band on the top edge of the display.
The upper left corner of the menu bar shows the time and date. The upper
right corner shows the name of the current menu.
Status Bar
The Status Bar appears along the bottom edge of the display.
The appearance of the status bar changes depending upon the
function performed.
Page 19
Keypad Description
Section 1
1.5 Principle Operation
The lower left corner of the Status Bar indicates whether a program is
Running, Halted, or Ready To Start. If it is not needed during a programming
step, it disappears.
The lower right corner displays system alarm conditions, such as low memory
battery. For a list of possible alarms see Section 4.4 on page 73.
The status bar also lists the valid choices when entering certain programming
information. For example, when selecting the units of level measurement from
the Level Units menu, the status bar indicates that the valid choices are:
cm, ft, in. or m.
Measurement Capabilities
The 980 Flow Meter is often used to measure flow in conjunction with a
primary measuring device (flume, weir, pipe, etc.) that has a known
level-to-flow relationship. The 980 Flow Meter directly measures the level of
liquid in a channel that is contributing to flow (referred to as “head”) and
calculates the flow rate based on the head-to-flow relationship of the primary
device. (Refer to Appendix A on page 109).
The 980 Flow Meter can also simultaneously measure and record:
• Level • Velocity (AV version only)
• pH • Temperature
• Rainfall • Seven discrete analog inputs
(voltage and/or current)
The AV option can also measure the average velocity of the flow stream using
a submerged Doppler probe and calculate flow based on the current level and
the formula: Wetted Area × Velocity = Flow.
Communication Capabilities
A graphical display allows fast, on-site review of historical data.
In addition to its extensive data logging capabilities, the 980 Flow Meter is
capable of:
• Enabling a sampler
• Pacing a sampler
• Controlling four external devices with Normally Open/Normally
Closed relays
Page 20
Principle Operation
• Controlling two external devices with 4–20 mA current outputs
Communications capabilities include a standard RS232 port used for data
transfer and updating internal embedded program using state-of-the-art Flash
Memory technology.
The 980 Flow Meter also provides SCADA Communication Interface
functionality using the Modbus
communicates with the instrument via an RS232 or modem connection.
®
ASCII protocol. This software protocol
Using our InSight® Gold data analysis software, users can download,
980
remotely program, view real-time current status of logged parameters,
and conduct other data manipulation via RS232 connection or the
optional modem.
To protect the meter’s functionality and data, an operator may set up
password security access to the meter using the front-panel keypad.
Figure 3 Communication Capabilities
980980
Section 1
RS-232
Connector
pH
Velocity
Depth/Velocity
Ultrasonic/Level
Page 21
Principle Operation
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INSTALLATION
DANGER
Some of the following manual sections contain information in the form of warnings, cautions and notes
that require special attention. Read and follow these instructions carefully to avoid personal injury and
damage to the instrument. Only personnel qualified to do so, should conduct the installation/maintenance
tasks described in this portion of the manual.
DANGER
Certains des chapitres suivants de ce mode d’emploi contiennent des informations sous la forme
d’avertissements, messages de prudence et notes qui demandent une attention particulière. Lire et suivre
ces instructions attentivement pour éviter les risques de blessures des personnes et de détérioration de
l’appareil. Les tâches d’installation et d’entretien décrites dans cette partie du mode d’emploi doivent être
seulement effectuées par le personnel qualifié pour le faire.
PELIGRO
Algunos de los capítulos del manual que presentamos contienen información muy importante en forma de
alertas, notas y precauciones a tomar. Lea y siga cuidadosamente estas instrucciones a fin de evitar
accidentes personales y daños al instrumento. Las tareas de instalación y mantenimiento descritas en la
presente sección deberán ser efectuadas únicamente por personas debidamente cualificadas.
GEFAHR
Einige der folgenden Abschnitte dieses Handbuchs enthalten Informationen in Form von Warnungen,
Vorsichtsmaßnahmen oder Anmerkungen, die besonders beachtet werden müssen. Lesen und befolgen
Sie diese Instruktionen aufmerksam, um Verletzungen von Personen oder Schäden am Gerät zu
vermeiden. In diesem Abschnitt beschriebene Installations- und Wartungsaufgaben dürfen nur von
qualifiziertem Personal durchgeführt werden.
PERICOLO
Alcune parti di questo manuale contengono informazioni sotto forma d’avvertimenti, di precauzioni e di
osservazioni le quali richiedono una particolare attenzione. La preghiamo di leggere attentivamente e di
rispettare quelle istruzioni per evitare ogni ferita corporale e danneggiamento della macchina. Solo gli
operatori qualificati per l’uso di questa macchina sono autorizzati ad effettuare le operazioni di
manutenzione descritte in questa parte del manuale.
Page 23
INSTALLATION
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Section 2 Installation
DANGER
Cet appareil doit être installé par du personnel technique qualifié, afin d'assurer
le respect de toutes les normes applicables d'électricité.
DANGER
This instrument should be
installed by qualified technical
personnel to ensure adherence to
all applicable electrical codes.
2.1 Customer-supplied Equipment
PELIGRO
Este instrumento debe ser instalado por personal técnico capacitado para
asegurar el cumplimiento con todos los códigos eléctricos y de plomería
aplicables.
GEFAHR
Um zu gewährleisten, daß alle elektrischen VDE-Vorschriften und
gegebenenfalls die Zusatzvorschriften der zuständigen Elektrizitäts- und
Wasserwerke erfüllt werden, darf dieses Gerät nur von geschultem
Fachpersonal installiert werden.
PERICOLO
Lo strumento deve essere installato da personale tecnico qualificato per
garantire la conformità delle norme in materia di elettricità.
• Four ¼–20 mounting screws • Wire strippers
• Small flat-blade screwdriver • Diagonal wire cutters
• Phillips screwdriver • Nylon wire ties
• Needle-nose pliers •
• 110–230 V single phase switched power
2.2 Unpacking the Instrument
Remove the 980 Flow Meter from its shipping carton and inspect it for any
damage. If the shipment arrives damaged or incomplete contact: Technical
support at 1-800-635-1230 or send e-mail to techhelp@hach.com.
2.2.1 NEMA 4X Applications
To maintain the NEMA 4X, IP66 enclosure rating, use strain-relief or conduit
fittings that are a sealing type (not supplied, see note in left column). To make
Note: The 980 Flow Meter ships
with temporary push-in hole plugs
which are not acceptable for use
during operation. If circuit
connections are not required, plug
unused holes as shown in Figure 4.
wire connections, refer to the sections that follow. Standard off-the-shelf
NEMA-approved conduit hardware is available at most hardware and
electrical appliance stores. Take care to select the style of conduit hardware
that will seal to the enclosure wall when using flexible or rigid conduit. See
Figure 4 and Parts and Accessories on page 157.
5
/16 open-end wrench
Page 25
Installation
Section 2
980
Figure 4 Sealing-type Strain Reliefs, Conduit Fittings, and Sealing Plugs
2
1. Sealing-type Strain Relief (Cat. No. 8773 0.20-0.35″ O.D. cable, Cat. No. 8786 0.23-0.47″ O.D. cable)
2. Conduit Fitting (½″ (Cat. No. 16483), 1” (Cat. No. 4913600))
3. Oil-tight Sealing Plug (Cat. No. 42210-00)
3
Figure 5 Mounting Dimensions (1 of 3)
11.88 inches (301.7 mm)
7.80 inches (198.1 mm)
12.45 inches (316.2 mm)
14.62 inches (371.3 mm)
13.86 inches (352.0 mm)
11.06 inches (280.9 mm)
980980
X.XX inches (XX.X mm)
.225 inches (5.7 mm)
14.80 inches (375.9 mm)
Page 26
Unpacking the Instrument
12.05 inches (306.7 mm)
Figure 6 Mounting Dimensions (2 of 3)
Section 2
18.40 inches
(467.3 mm)
8.1 inches
(205.7 mm)
10.00 inches (254 mm)
11.88 inches (301.7 mm)
2.3 Mounting Options
6.50 inches
(165.1 mm)
3.60 inches
(91.4 mm)
2.10 inches (53.3 mm)
2.00 inches (50.8 mm)
4.00 inches (101.6 mm)
6.00 inches (152.4 mm)
8.00 inches (203.2 mm)
The 980 Flow Meter is designed for wall or rail/pole mounting. Wall mounting
dimensions and hole patterns are found in Figure 7. For optimal viewing of the
the front panel display, mount the instrument facing north to eliminate glare
from the sun.
Page 27
Mounting Options
Section 2
Figure 7 Mounting Dimensions (3 of 3)
309 mm (12.18 inches)
2.3.1 Wall Mounting
139 mm (5.5 inches)
240 mm (9.45 inches)
301.5 mm (11.87 inches)
Mount the 980 Flow Meter using the Wall Mounting Blocks that come installed
on the unit, see Figure 7. These brackets provide secure mounting for the
instrument. To wall mount the 980 Flow Meter use four ¼–20 screws. Refer to
Figure 8.
209.5 mm (8.25 inches)
376 mm (14.80 inches)
Mounting Blocks (4)
Page 28
Mounting Options
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