Onicon F-3100 Series Assembly instructions

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F-3100 SERIES
Inline Electromagnetic Flow Meter
Installation & Basic Operation Guide
11-17
0670-9 / 16958

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F-3100 Flow Meter Manual 11/17 - 0670-9 Page 2

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SAFETY INFORMATION
This meter was calibrated at the factory before shipment. To ensure correct use of the meter, please
read this manual thoroughly.
Regarding this Manual:
• This manual should be passed on to the end user.
• Before use, read this manual thoroughly to comprehend its contents.
• The contents of this manual may be changed without prior notice.
• All rights reserved. No part of this manual may be reproduced in any form without
ONICON’s written permission.
• ONICON makes no warranty of any kind with regard to this material, including, but not
limited to, implied warranties of merchantability and suitability for a particular purpose.
• All reasonable effort has been made to ensure the accuracy of the contents of this manual.
However, if any errors are found, please inform ONICON.
• ONICON assumes no responsibilities for this product except as stated in the warranty.
• If the customer or any third party is harmed by the use of this product, ONICON assumes
no responsibility for any such harm owing to any defects in the product which were not
predictable, or for any indirect damages.
Safety Precautions:
The following general safety precautions must be observed during all phases of installation,
operation, service, and repair of this product. Failure to comply with these precautions or with
specic WARNINGS given elsewhere in this manual violates safety standards of design,
manufacture, and intended use of the product. ONICON Incorporated assumes no liability for the
customer’s failure to comply with these requirements. If this product is used in a manner not
specied in this manual, the protection provided by this product may be impaired.
The following symbols are used in this manual:
!
!
WARNING
Messages identied as “Warning” contain information regarding the personal safety of individuals
involved in the installation, operation or service of this product.
CAUTION
Messages identied as “Caution” contain information regarding potential damage to the product or
other ancillary products.
IMPORTANT NOTE
Messages identied as “Important Note” contain information critical to the proper operation of the
product.
i

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F-3100 Flow Meter Manual 11/17 - 0670-9 Page 4

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TABLE OF CONTENTS
1.0 INTRODUCTION .................................................................................................7
1.1 Purpose Of This Guide ............................................................................. 7
1.2 Principle Of Operation ............................................................................. 7
1.3 Typical Flow Meter Installation ...............................................................7
1.4 Standard Features And Specications..................................................... 8
1.5 Additional Hardware That May Be Required...........................................9
1.5.1 Grounding Rings..........................................................................9
1.5.2 Gaskets .......................................................................................10
1.6 Working Environment ............................................................................10
1.7 Warranty And Serial Number .................................................................10
2.0 UNPACKING ....................................................................................................11
2.1 Checking That You Have Received Everything ..................................... 11
3.0 INSTALLATION................................................................................................. 12
3.1 Site Selection ..........................................................................................12
3.1.1 General Guidelines ....................................................................13
3.1.2 Flow Direction ...........................................................................13
3.1.3 Remote Mount Transmitter .......................................................13
3.1.4 Minimum Straight Run Requirements......................................14
3.2 Mechanical Installation ..........................................................................15
3.2.1 Standard Transmitter Dimensions ............................................15
3.2.2 Sensor Body Dimensions & Weights .........................................16
3.2.3 Installation Drawing For Conductive Pipe ...............................19
3.2.4 Installation Drawing For Non Conductive Pipe .......................21
3.2.5 Installation Drawing For Threaded Connections .................... 22
3.2.6 Installation Instructions .......................................................... 23
3.2.7 Torque Specications ...............................................................25
3.2.8 Remote Mount Transmitter .......................................................26
3.3 Electrical Installation ..............................................................................27
3.3.1 Input Power Requirements........................................................27
3.3.2 Power And Output Signal Wiring Instructions ........................27
3.3.3 Earth Connection .......................................................................30
3.3.4 Remote Mount Cable Wiring Instructions ................................31

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F-3100 Flow Meter Manual 11/17 - 0670-9 Page 6
TABLE OF CONTENTS (CONTINUED)
4.0 F-3100 START-UP AND COMMISSIONING ....................................................32
4.1 Display And Keypad Operation ..............................................................33
4.2 Helpful Hints For Start-Up And Commissioning ..................................34
4.3 Start-Up And Commissioning .................................................................34
4.4 Start-Up And Commissioning Worksheet...............................................35
4.5 Troubleshooting Guide ............................................................................35
4.6 Alarm Interpretation And Standard Led’s ..............................................36
APPENDIX
A-1/A-3 FIELD REMOTE MOUNTING THE TRANSMITTER
A-4 CONDITIONS OF SALE

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SECTION 1.0: INTRODUCTION
1.1 PURPOSE OF THIS GUIDE
The purpose of this guide is to provide installation and commissioning procedures and basic
operating instructions for the F-3100 Inline Electromagnetic Flow Meter.
1.2 PRINCIPLE OF OPERATION
The operating principles of ONICON F-3100 Inline Electromagnetic Flow Meters are based
on Faraday’s Law of Electromagnetic Induction. Faraday’s Law states that a voltage will be
induced in a conductor (water or other conductive liquid) when it passes through a magnetic eld
(generated by the meter), and the induced voltage will be directly proportional to the velocity of
the conductor. By placing electrodes on opposite sides of the ow tube, it is possible to accurately
measure the induced voltage and determine the corresponding velocity of the owing liquid.
1.3 TYPICAL FLOW METER INSTALLATION
ONICON’S F-3100 Series Inline Magnetic Flow Meters are suitable for volumetric ow
measurement of electrically conductive liquids in a wide variety of applications including
bi-directional applications.
WARNING
Only qualied service personnel should attempt to install or service this product. Serious injury
may result from the improper installation or use of this product.
!
Flow direction
INSTALLATION IN STEEL (CONDUCTIVE) PIPE
F-3000 Series Mating Flange Grounding Kit Instructions
Note 1.
Using a #21 (0.159”) drill bit, drill a ½” deep hole in edge of each mating flange. Tap each hole using a 10-32 tap.
Secure the provided ring connectors and grounding wires to the flanges using the provided green grounding screws.
(Alternate method: Weld 10-32 studs (not provided) to the flange faces and attach ring connectors with 10-32 nuts (not provided.)
Note 2.
Provide a ground connection at the input power terminals inside the transmitter enclosure.
Note 3.
Provide a quality earth ground connection to the meter.
From best to worst, grounding options include:
1. Earth grounding rod driven into the soil.
2. Earth wire connected directly to the building electrical service panel.
3. Earth wire connection inside an electrical outlet near the meter.

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1.4 STANDARD FEATURES AND SPECIFICATIONS
A built-in user interface & display
A single 4 – 20 mA output for ow rate
Two programmable open collector pulse outputs. Outputs may be programmed to provide:
* an indication of ow direction
* a scaled pulse for totalizing ow
* a high resolution frequency output to drive peripheral devices
* an indication of an alarm condition
Empty pipe detector
Internal self-diagnostic functions & fault alarms
CALIBRATION
Flow meters are wet calibrated in a ow laboratory
against standards that are directly traceable to
government standards. A certicate of calibration
accompanies every meter.
ACCURACY
± 0.4% of reading from 3.3 to 33 ft/sec
± 0.8% of reading from 1 to 3.3 ft/sec
± 0.0075 ft/s at ows less than 1 ft/s
PROGRAMMING
Factory programmed for specic application
MEMORY
Nonvolatile memory retains all program parameters
and totalized values in the event of power loss.
DISPLAY
Alphanumeric LCD displays total ow, ow rate,
ow direction & alarm conditions
OUTPUT SIGNALS
Isolated 4 – 20 mA analog output for ow rate
Two programmable open collector pulse outputs
(congurable for frequency, pulse or directional
ow)
TEMPERATURE RANGE
Liquid temperature range:
Polypropylene liner: 32° to 140°F
Ebonite liner: 23° to 175°F
PTFE liner: -4° to 212° F (266° F with remote
electronics)
Ambient temperature range: 14° to 122°F
MAINTENANCE
Periodically inspect the power supply cables,
cable glands and the enclosure for signs of damage.
Inspect installation and mounting hardware for
loose connections.
MECHANICAL
Electronics Enclosure:
Standard: Nylon NEMA 4
Optional: Remote mount transmitter version,
maximum distance from the sensor is 65ft.
Outer Body Material:
Standard: Carbon Steel, Painted
Optional: 316 Stainless Steel
Flow Tube (Internal):
304 Stainless Steel
Connection Type:
Standard: ANSI 150 Class Flange
Optional: ANSI 300 Class Flange
Optional: Wafer
Optional: Threaded Process Connection
ELECTRICAL
This equipment is intended for INSTALLATION
CATEGORY (OVERVOLTAGE CATEGORY) II
applications.
Input Power - Factory Selectable:
Standard - 90 to 265 VAC, 45 to 66 Hz, and 35 mA
maximum
Optional - 10 to 63 VDC, 15 to 45 VAC, 45 to
66 Hz and 300 mA maximum
Overcurrent Protective Device Ratings:
Supply mains overcurrent protective devices
with the following ratings:
• 120 VAC 50/60 Hz – 15 A
• 230 VAC 50 Hz – 6 A
Wiring:
Flow signals - Use 18-22 AWG shielded cable
Standard input power - Use a three wire service
with one wire a protective earth ground. The
installation must comply with all local, state
and federal building codes.
Optional input power - Use PVC jacketed copper
cable with a wire gauge suitable for the length
of run and required maximum current carrying
capacity. The installation must comply with all
local, state and federal building codes.
PRESSURE AND CONDUCTIVITY
Maximum Operating Pressure
(Exclusive of ange rating)
Ebonite: 1000PSI
Polypropylene: 230PSI
PTFE: 580PSI
Minimum Fluid Conductivity:
5 microsiemens/centimeter
Note: Specications are subject to change without notice.
Approvals:

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1.5 ADDITIONAL HARDWARE THAT MAY BE REQUIRED
1.5.1 Grounding Rings
Grounding rings may be required whenever meters are installed in non-metallic or lined
pipes. Grounding rings placed before and after the meter eliminates electrical noise that
will interfere with the proper operation of the meter. ONICON provides grounding rings
as an optional accessory. Grounding ring dimensional information and part numbers are
listed below. For proper operation, grounding rings are required before and after the meter.
Grounding Ring Dimensions & ONICON Part Numbers
Nominal
Size
Bore A C D T 316 SS Part
#
1” 1 - 1/16 2 - 5/8 4 - 9/16 1 - 15/16 1/8 15212
1.5” 1 – 9/16 3 – 3/8 5 - 5/16 1 - 15/16 1/8 15213
2” 2 – 1/16 4 – 1/8 6 - 1/16 1 - 15/16 1/8 15214
3” 3 – 1/16 5 – 3/8 7 - 5/16 1 - 15/16 1/8 15215
4” 4 – 1/16 6 – 7/8 8 - 13/16 1 - 15/16 1/8 15216
6” 6 8 – 3/4 10 - 11/16 1 - 15/16 1/8 15217
8” 8 11 12 - 15/16 1 - 15/16 1/8 15218
10” 9 – 1/2 13 – 3/8 15 - 5/8 2 - 1/4 1/8 15219
12” 11 – 9/16 16 – 1/8 18 - 9/16 2 - 7/16 1/8 15220
14” 13 – 1/2 17 – 3/4 20 - 3/8 2 - 5/8 1/8 15221
16” 15 – 1/4 20 – 1/4 22 - 7/8 2 - 5/8 1/8 15222
18” 17 – 3/8 21 – 5/8 24 - 1/4 2 - 5/8 1/8 15223
20” 19 23 - 7/8 26 - 11/16 2 - 13/16 1/8 15224
24” 23 28 – 1/4 31 - 1/8 2 - 7/8 1/8 15225
30” 29 34 – 3/4 38 3 - 1/2 1/8 15226
36” 35 41 – 1/4 45 - 1/4 4 1/8 15227
42” 41 48 52 - 1/2 4 - 1/2 1/8 15228
D
C
3/8
5/8
Bore
A
1/4
1/8”

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1.5.2 Gaskets
Gaskets are required for sensor bodies with ebonite and polypropylene liners and are
strongly recommended for meters with PTFE liners. Gasket dimensions must comply with
ASME B16.5 ange standards. ONICON is not a gasket manufacturer and does not supply
gaskets for this product.
The following general suggestions are provided to assist the installer in choosing the
proper gasket material. In all cases, the responsibility of selecting the appropriate material
rests with the installer.
Gaskets are used to create a seal between the ow meter liner surface and the surface
of the mating ange. The proper choice of gasket material will allow for a leak free
connection at the time of installation and maintain that seal over time. How well the
gasket works depends on a number of factors. Each of these should be considered when
choosing a gasket material.
• Is it chemically compatible with the uid?
• Will it withstand the expected minimum and maximum operating temperatures?
• Does it provide enough resiliency and creep resistance to maintain loading over time?
• Will it deform enough to create a seal by lling imperfections in the sealing surfaces?
• Is it thick enough to take up variations in atness of the surface?
In many cases a simple 1/8” red rubber gasket with a Shore A hardness (Durometer) of
60 – 80 will sufce. Your local gasket supplier should be able to guide you in selecting the
best material for your application.
1.6 WORKING ENVIRONMENT
The F-3100 was designed for installation and use in typical industrial environments that are free
of corrosive liquids and fumes, direct liquid exposure, direct sunlight, temperature extremes and
vibrations.
The operating ambient air temperature range is -4° F to 140° F.
The electrical power should be relatively clean, free of high frequency noise, large voltage
transients, and protected from power surges and brown outs.
1.7 WARRANTY & SERIAL NUMBER
Warranty
ONICON’s complete warranty is included in Appendix A of this manual as part of the
“Conditions of Sale”. ONICON provides a two-year warranty.
Serial Number
The F-3100 has 2 separate serial numbers. The transmitter serial number is located on the
identication plate located on the electronics enclosure. The sensor serial number is located on
the identication plate located on the sensor body.

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SECTION 2.0: UNPACKING
The F-3100 is generally shipped in one package unless optional hardware or equipment is ordered.
Notify the freight carrier (all products are shipped insured) and ONICON’s Customer Service
Department if any items are damaged in transit.
2.1 CHECKING THAT YOU HAVE RECEIVED EVERYTHING
• Standard Documentation
Enclosed with each F-3100 is a comprehensive documentation package that includes the
following items:
Certicate of Calibration
The F-3100 Installation and Operation Guide
Please notify ONICON if any of these items are missing.

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• Grounding Rings
Grounding rings are optional accessories that may be required for proper installation.
Grounding rings may be shipped in a separate carton. Remove each and inspect it for
physical damage.
SECTION 3.0: INSTALLATION
The F-3100 Inline Electromagnetic Flow Meter should be installed by experienced plumbers,
electricians and others with related knowledge and experience in the heating, cooling, and uid
metering elds. ONICON will be happy to assist with technical recommendations and to provide
guidance by telephone and/or email. On-site eld engineering, installation and service are also
available at an additional cost.
The installer should use good trade practices and must adhere to all state and local building or other
applicable codes.
3.1 SITE SELECTION
Careful attention during the site selection process will help the installers with the initial
installation, reduce start-up problems, and make future maintenance easier. For example, do not
install the ow meter where it will be difcult for personnel to perform periodic maintenance.
When selecting a site for mounting, consider the criteria under Section 1.6, WORKING
ENVIRONMENT, as well as the following:
• Integral Mount Transmitter
F-3100 Inline Electromagnetic Flow Meters with integrally mounted transmitters are
shipped fully assembled. Remove the meter from the shipping carton and inspect it for
physical damage.
• Remote Mount Transmitter
F-3100 Inline Electromagnetic Flow Meters ordered with the remote transmitter
mounting option will be shipped in one carton that contains the ow sensor body, the
transmitter with mounting hardware and the necessary cable to connect the two together.
Remove each and inspect it for physical damage.
i
IMPORTANT NOTE
Proper site selection is critical to the performance of this ow meter. The ow meter must be
properly located within the piping system in order to ensure an accurate ow measurement.
IMPORTANT NOTE
F-3100 transmitters and sensor bodies are two parts of one uniquely calibrated system and must
be installed together. Mixing components from other systems will result in signicant calibration
errors.
i

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3.1.1 General Guidelines
When properly installed, the ow meter will only measure ow associated with that
portion of the piping system for which the ow measurement is being made. Choose the
location with the longest straight unobstructed run of pipe, keeping in mind that in some
applications it may be possible to locate the meter in either the supply or return pipe.
3.1.2 Flow Direction
F-3100 ow meters are inherently bi-directional and changes in ow direction are
indicated by a change in polarity of the sensing signal. In order for the meter to display
the correct polarity, it is necessary to orient the meter relative to ow direction during
the installation process. The sign of the ow rate is positive when the ow direction is
from – to + as printed on the tag plate as shown below. Prior to installation, determine the
direction of ow in the piping system and orient the meter accordingly.
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IMPORTANT NOTE
Flow direction is indicated by polarity symbols (+/-) and ow totals are accumulated separately
based on direction. The polarity of the ow indication may be reversed by reversing the polarity of
the Ka coefcient.
IMPORTANT NOTE
The maximum distance between the transmitter and sensor body is 65ft. Contact ONICON if the
transmitter needs to be more than 65ft from the sensor body.
i
3.1.3 Remote Mounted Transmitter
Find an easily accessible location where wire connections can be made and meter readings
can be taken from oor level. Mount the transmitter on a vibration free surface. Avoid
locations that contain electric motors or other strong sources of electrical interference.
Flow in this direction will display
as positive on the LCD display.
Flow in this direction will display
as negative on the LCD display.
FLOW DIRECTION
-
+
FLOW DIRECTION
FLOW DIRECTION
-
+
FLOW DIRECTION
FLOW DIRECTION
-
+

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3.1.4 Minimum Straight Run Requirements
The straight run requirements presented below represent the minimum requirements
for accurate ow measurement. For optimum performance, provide as much additional
straight run as possible.
IMPORTANT NOTE
For proper operation, install the ow meter in a straight run of pipe free of bends, tees, valves,
transitions and obstructions for a distance of at least 3 diameters upstream and 2 diameters
downstream.
i
Recommended Installation
3 DIA 2 DIA
3 DIA 2 DIA
3 DIA 2 DIA
Place ow meter at least 3
pipe diameters upstream
and 2 pipe diameters
downstream from bends
and obstrutions.
Avoid downward ow
which can lead to partially
lled pipes.
The electrodes should
be located in the
horizontal axis (3 o’clock
and 9 o’clock) in order to
prevent sediment from
settling on them.
Avoid these installations
Electrode location

Electrode location

Electrode Location

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F-3100 Flow Meter Manual 11/17 - 0670-9 Page 15
3.2 MECHANICAL INSTALLATION
IMPORTANT NOTE
F-3100 transmitters and sensor bodies are two parts of one uniquely calibrated system and must
be installed together. Mixing components from other systems will result in signicant calibration
errors.
i
2.5”
Install sensor
cable here
0.25” Diameter
3”
Net weight 1.6 lbs
3.2.1 Standard Transmitter Dimensions

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3.2.2 Sensor Dimensions & Weights
Ansi Class 150 Flanged Sensor Overall Dimension
H
L
D
Shown with 4-bolt pattern
Sensor Size
Nominal Diameter 1” 1.25” 1.5” 2” 2.5” 3” 4” 5” 6” 8” 10” 12”
Lenght (L above) 7.87 7.87 7.87 7.87 7.87 7.87 9.84 9.84 11.81 13.78 17.72 19.68
Height (H above) 7.13 7.55 8.15 8.74 9.64 10.20 11.34 12.40 13.43 15.79 18.15 20.75
Flange Dia (D above) 4.24 4.64 5.00 5.98 7.00 7.52 9.02 10.00 10.98 13.50 15.98 19.02
Weight in lbs 6.60 6.60 7.70 13.20 17.60 24.20 35.20 39.60 57.20 88 132 220
Sensor Size
Nominal Diameter 14” 16” 18” 20” 24” 26” 30” 34” 36” 42” 48”
Length (L above) 21.65 23.62 23.62 23.62 23.62 25.59 29.53 33.46 35.43 41.33 47.24
Height (H above) 22.91 25.16 27.08 29.57 34.09 36.26 40.63 45.24 47.48 53.34 60.23
Flange Dia (D above) 20.98 23.50 25.00 27.52 32.01 34.25 38.74 43.74 45.98 53.00 59.49
Weight in lbs 275 396 484 550 650 726 990 1276 1320 2112 2500

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Sensor Dimensions & Weights
Ansi Class 300 Flanged Sensor Overall Dimension
H
L
D
Shown with 4-bolt pattern
Sensor Size
Nominal Diameter 1” 1.25” 1.5” 2” 2.5” 3” 4” 5” 6” 8” 10” 12”
Lenght (L above) 7.87 7.87 7.87 7.87 7.87 7.87 9.84 9.84 11.81 13.78 17.72 19.68
Height (H above) 7.48 7.83 8.70 8.98 9.88 10.55 11.81 12.91 14.17 16.54 18.90 21.50
Flange Dia (D above) 4.88 5.24 6.14 6.50 7.52 8.27 10.00 10.98 12.52 15.00 17.52 20.51
Weight in lbs 11.00 11.00 15.40 19.80 24.20 28.60 44.00 52.80 66 154 220 286
Sensor Size
Nominal Diameter 14” 16” 18” 20” 24” 26” 30” 34” 36”
Length (L above) 21.65 23.62 23.62 23.62 23.62 25.59 29.53 33.46 35.43
Height (H above) 23.90 26.14 28.58 30.31 36.06 39.45 44.13 48.43 50.87
Flange Dia (D above) 22.99 25.51 27.99 30.51 35.98 38.27 42.99 47.52 50.00
Weight in lbs 396 528 805 970 1489 1712 Inquire Inquire Inquire

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F-3100 Flow Meter Manual 11/17 - 0670-9 Page 18
Wafer Style Sensor Overall Dimensions
G
D
L
H
I.D.
0.95"
H
W
L
Polypropylene Stainless Steel
Weight 4.85 lbs 4.85 lbs
L 5.5” 4.72”
H 7.4” 6.69”
W 3.8” 3.07”
Sensor Size
Nominal Dia 1” 1.25” 1.5” 2” 2.5” 3” 4” 5” 6” 8” 10” 12” 14” 16”
L3.94 3.94 3.94 3.94 5.90 5.90 5.90 7.09 7.09 7.87 9.84 11.81 13.78 15.75
H5.79 6.02 6.34 6.97 7.83 8.23 9.25 10.35 11.46 14.25 16.42 18.39 20.75 22.80
D2.20 2.44 2.76 3.39 4.25 4.65 5.67 6.77 7.87 10.67 12.83 14.80 17.17 19.21
G- - - - - - - - - 5.67 7.64 9.60 11.57 13.54
Net Weight in lbs 2.6 3.5 4.0 4.4 7.9 8.4 11 17.2 18 40 53 59 70 86
Threaded Version

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F-3100 Flow Meter Manual 11/17 - 0670-9 Page 19
Recommended method for lifting all sensors with eyebolts
The eyebolts are
designed to hold only
the weight of the meter
WARNING
Eyebolts are provided to assist in the safe installation of meters with a nominal diameter greater
than 6 inches. The eyebolts are only designed to hold the weight of the meter. Do not attempt to
place an additional load on the eyebolts during installation.
!

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F-3100 Flow Meter Manual 11/17 - 0670-9 Page 20
3.2.3 Installation Drawings for Conductive Pipe
Note 1. Using a #21 (0.159”) drill bit, drill a ½” deep hole in edge of each mating ange. Tap each
hole using a 10-32 tap. Secure the ring connectors (provided) and grounding wires to the ange
using the green grounding screws (provided).
(Alternate method: Weld 10-32 studs (not provided) to the ange faces and attach ring
connectors with 10-32 nuts (not provided).
Note 2. Provide a ground connection at the input power terminals inside the transmitter enclosure.
Note 3. Provide a quality earth ground connection to the meter.
From best to worst, grounding options include:
1. Earth grounding rod driven into the soil.
2. Earth wire connected directly to the building electrical service panel.
3. Earth wire connection inside an electrical outlet mear the meter.
Flow direction
INSTALLATION IN STEEL (CONDUCTIVE) PIPE
Note 1. Note 1.
Note 1.
Using a # 21 (0.159") drill bit, drill a 12" deep hole in edge of each mating flange. Tap each hole
using a 10-32 tap. Secure the ring connectors (provided) and grounding wires to the flange using
the green grounding screws (provided).
(Alternate method : Weld 10-32 studs (not provided) to the flange faces and attach ring
connectors with 10-32 nuts (not provided).
F-3000 Series Mating Flange Grounding Kit Instructions
Note 2.
Note 2.
Provide a ground connection at the input power terminals inside the transmitter enclosure.
Note 3.
Note 3.
Provide a quality earth ground connection to the meter.
From best to worst, grounding options include:
1. Earth grounding rod driven into the soil.
2. Earth wire connected directly to the building electrical service panel.
3. Earth wire connection inside an electrical outlet near the meter.
CAUTION
The earth connections must be made as shown. Failure to do so will result in erratic operation of
the meter.
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