McCrometer SPI Mag 282L Quick Start Manual

Page 1

SENSOR INSERTION TOOL

CONTENTS

1 - SPI Mag Sensor 2 - Long threaded retaining rods 1 - Converter (M Series, L Series or ABB) 1 - Calibration Certicate 1 - SPI Mag Installation, Operation and Maintenance Manual 1 - Converter Installation, Operation and Maintenance Manual

SERIAL NUMBERS

SAFETY WARNINGS

2 - 3/4” reversible ratchet wrenches 1 - Pipe thread sealant 1 - Compression Seal Assembly 4 - Hex nuts (3/8”) 2 - Locking cotter pins 1 - Power cord (8’, 115 VAC)

CONTACT INFORMATION

Copyright © 1997-2013 McCrometer, Inc. All printed material should not be changed or altered without permission of McCrometer. Any published technical data and instructions are subject to change without notice. Contact your McCrometer representative for current technical data and instructions. FPI-Mag™ is a trademark of McCrometer, Inc.

www.mccrometer.com

3255 WEST STETSON AVENUE • HEMET, CALIFORNIA 92545 USA TEL: 951-652-6811 • 800-220-2279 • FAX: 951-652-3078 Printed In The U.S.A. Lit. 30120-66, Rev. 1.2 / 8-18-17

282L WIRING DIAGRAM

WARNING! Incorrect installation or removal of SPI Mag meters can result in serious injury or death. Read

the instructions in this manual on the proper procedures carefully.

WARNING! Never enter a conned space without testing the air at the top, middle and bottom of the space. The air may be toxic, oxygen decient or explosive.

Do not trust your senses to determine if the air is safe. You cannot see or smell many toxic gases.

WARNING! Never enter a conned space without the proper safety equipment. You may need a respirator, gas

detector, tripod lifeline and other safety equipment.

WARNING! Never enter a conned space without standby/rescue personnel within earshot. Standby/

rescue personnel must know what action to take in case of emergency.

WARNING! Carefully read all safety warning tags attached to the meter.

Verify the system serial numbers on both the sensor and converter match to ensure a properly calibrated system.

The Meter Serial Number is etched onto the sensor and can also be located on a tag near the end of the sensor cable

The tag on the side of the converter has the Converter Model Number, the Converter Serial Number and the Meter Serial Number.

All electrical cables enter the converter through compression ttings located on the side of the converter. Ensure that all compression glands are properly tightened and all unused ttings are plugged so the case remains sealed.

All connections are made on the terminal board. To access the terminal board, loosen the four screws on the back of the converter to remove the rear cover.

TERMINAL BOARD (M-SERIES CONVERTER)

CAUTION! Always disconnect the power cord before attempting any electrical connections.

Converter Model Number

Meter Serial Number

Converter Serial Number

Converter Model: 880003xxx Converter SN: E12-34567 Meter Model: FPI 395L Meter SN: MI12-0448 http://www.mccrometer.com

USC

Meter Serial Number Meter Serial Number

1 2 3 4 5 6 7 8 9

11 12 13 14 15 16 17 18 19 20

E1 E2 C SC + - B A + -

ELECTRODE INPUT RS485 4-20mA

-ECECE+SCB2B1SC

OUT2OUT124VCOILS 24V

21 22 23 24 25 26

27 28 29 30 31 32

OUT 3 E C

- + INP2

E C OUT 4

- +

4..20mA

CTS RDTDSG

RS 232

Model 282L

Single Prole Insertion

Electromagnetic Flow Meter

Quick Start Guide

30120-66 Rev. 1.2

August 18, 2017

McCrometer recommends using a sensor insertion tool (P/N 75031) to help with inserting the sensor and to avoid any damage to the sensor.

Place the proling insertion tool over the captive nuts and lock it into place with spring locks located on the bottom of the tool. Using the provided wrench rotate the high gear shaft clockwise until the bottom of the sensor reaches the far wall of the pipe.

Low Gear Shaft

High Gear Shaft

3/8” Insertion Tool (Part Number 75031) for

TSL < 72” and pressure < 200 psi

Terminal Block Assignments

Terminal Wire Color Connected To

#1 Blue Sensing electrode

#2 White Sensing electrode

#3 Black Reference ground

#11 Black

Magnet shield /

overall cable shield

#12 Red Coil

#13 Yellow Coil

Cable Diameter:

Single Cable (36002): 0.250”

DIP switch for block

levels enabling

Power

supply

Signaling

LED

IF2

socket

BLUE

WHITE

BLACK

p/n 17177 Rev. 1.0 unreleased

YELLOW

RED

1 2 3 4 19 20 21

Note: M-Series wiring diagram is used in this example. Additional wiring diagrams can be found in the converter IOM or inside the converter cover.

Page 2

RAW WATER SENSOR POSITION

The operation position for raw waste water and sludge is at sensor location 0.00 to prevent debris from collecting on the sensor and aecting velocity readings. To position the sensor at this location follow the instructions below:

Calculate distance A by subtracting the pipe wall thickness (WT) and ¾” from length C (Tube Length).

A = C - WT - ¾”

Using the captive nuts, position the top edge of the tube cap so that its distance from the OD of the pipe is equal to “distance A” calculated above. See diagram.

INSERTING THE SENSOR

WARNING! The compression seal/sensor assembly may be under pressure. Serious injury may result if proper procedures are not followed. Do not attempt to install the sensor without the retaining rods fully assembled.

Ensure the compression seal is only hand tightened.

Barely crack open the valve and tighten the compression seal as required to minimize leaks. A towel draped around the compression seal can reduce spray if necessary.

Open the valve completely. Failure to open the valve completely will cause the valve to scrape the sensor during insertion and may result in permanent damage to the sensor.

Insert the sensor into the pipe by simultaneously rotating clockwise the two captive nuts on the top plate for the 2” sensor, and the single captive nut on the 1” sensor. For the two captive nuts on the 2” sensor use the two ratchet wrenches provided. It is recommended that the Sensor Insertion Tool be used to rotate the captive nuts on the 2” sensor to ensure the top plate compresses evenly.

IMPORTANT: If the captive nuts are not tightened simultaneously, the top plate will become crooked and cause the sensor to be inser ted at an angle and may cause permanent damage.

CLEAN WATER SENSOR POSITION

If the ow is clean water, the sensor can be placed at 1/8 of the inside diameter. To position the sensor at 1/8 of the ID, follow the instructions below:

• Measure the tube from the top of the cap to the end of the sensor to nd tube length (TL).

• Calculate (1/8 D): 1/8 D = 0.125 x Pipe ID

• Add wall thickness( WT) to 1/8 D.

• Calculate distance A: A = TL - (1/8 D + WT)

Using the captive nuts, position the top edge of the tube cap so that its distance from the OD of the pipe is equal to “distance A” calculated above. See diagram.

If the ow is clean water, the sensor can be left at the 1/8D position. Do not leave the sensor in this position for raw waste water because debris could collect on the sensor and aect the velocity readings. In waste water applications, position the sensor at location 0.00.

0.00 Position

FULL PIPE SENSORS

PARTS DIAGRAM

NOTE: Valves are optional or supplied by user.

1 Sensor Assembly

2 Bronze Ball Valve

3 Compression Seal Assembly

1" Insertion Tube with cap 2" Insertion Tube without cap

5 Insertion Tube Cap

6 3/8" SS Long Threaded Rod

Item No. Part Name

1 2 543

282L 1" Sensor

SENSOR ASSEMBLY INSTALLATION

The sensor assembly uses a compression seal, which keeps the sensor watertight when the pipe is under pressure. Care must be taken when installing the sensor, to avoid leaks.

Visually inspect all elements of the installation to ensure they are structurally sound and of high quality materials, including all welds, couplings and nipples.

Put a generous amount of the supplied pipe sealant on the compression seal threads. Teon tape may also be used. NOTE: If pipe sealant gets on

the sensor electrodes the velocity signal may be lost.

Place the compression seal threads over the pipe valve. Turn the entire sensor assembly clockwise to secure the assembly to the valve.

The seal is secure when a large amount of force is required to turn the assembly. Line up the arrow (on the top plate) with the direction of the ow.

PIPE VALVE INSTALLATION

Install a 2” (50mm) full port valve or corporation stop with a 2” (50mm) NPT female pipe thread output for the 2” sensor, or a 1” (25mm) full port valve or corporation stop with a 1” (25mm) NPT female pipe thread output for the 1” sensor.. Follow any and all installation instructions provided for the valve that you have chosen. The valve or corporation stop can be installed onto a welded coupling or pipe saddle

WARNING! Pressurized pipes should only be hot tapped, cut, or drilled by qualied personnel using high quality saddles, valves and stainless steel nipples. If possible, depressurize the pipe before attempting any installation.

SENSOR CLEARANCE

1. the height from the outer pipe wall to the top of the installation valve

2. the length of the meter (see table)

3. additional 9” of working space

FLOW CALCULATION

The full pipe sensor makes use of Faraday’s Law of Electromagnetic Induction to measure water velocity.

Faraday’s Law states: A conductor, moving through a magnetic eld, produces a voltage.

Because water is a conductor, water moving through a magnetic eld produces a voltage. The magnitude of the voltage is directly proportional to the velocity of the water. The sensor generates an electromagnetic eld, creating a voltage in the water. The two velocity electrodes, along with the ground electrode measure this voltage. A faster water velocity produces a higher voltage. By accurately measuring this voltage, the velocity is determined.

Distance H is estimated by adding three measurements:

Insertion

Tube Length

Overall Sensor

Length

Insertion

Tube Length

Overall Sensor

Length 12” 18.25” 18” 24.25”

24” 30.25” 24” 30.25”

36” 42.25” 30” 36.25”

1” 282L 2” 282L

Pipe Saddle

With Ball Valve

Welded Pipe Nipple

With Ball Valve

Corporation

Stop

Velocity Electrodes

Ground Button

2” Sensor

1” Sensor

Velocity Electrodes

Ground

Button

282L 2" Sensor

5321

The sensor will protrude from the pipe when installed requiring sucient clearance from any obstruction.

Obstruction

Compression Seal Threads

Bottom Plate Compression Seal Assembly

Compression

Seal

Captive Nuts

Tube Length (TL)

1/8 D

1/8 D Position

3/4”

If the engineering design for this installation requires that ow in the line be proled, please refer to the SPI Mag Proling Guides.

SPI Mag 1” Proling Guide: Lit# 24510-58 SPI Mag 2” Proling Guide: Lit# 24510-59

The Proling Guides can be downloaded at: www.mccrometer.com/Library

To calculate the ow, two things are needed: The cross-sectional area of the pipe and the average velocity.

Cross-sectional area is found using the inside diameter of the pipe. Average velocity is found using the sensed velocity (measured by the sensor). A site calibration is performed to determine the velocity prole. This allows the ow meter to calculate the average velocity from the sensed velocity.

Flow is calculated by using the Continuity Equation: Flow = Average Velocity x Area