Dwyer IEF-LN-CND-LCD Series IEF Insertion Electromagnetic Flow Transmitter Instruction Manual

: June 15, 2024
: Dwyer

Table of Contents

Dwyer IEF-LN-CND-LCD Series IEF Insertion Electromagnetic Flow
FEATURES/BENEFITS
APPLICATIONS
SPECIFICATIONS
MODEL CHART
SETUP
INSTALLATION
GROUNDING
Read User Manual Online (PDF format)
Download This Manual (PDF format)

Dwyer IEF-LN-CND-LCD Series IEF Insertion Electromagnetic Flow

Transmitter

The Series IEF Insertion Electromagnetic Flow Transmitter is an adjustable insertion flowmeter featuring electromagnetic technology that accurately and reliably measures fluid velocity in addition to providing several continuous signal outputs. This series is specifically designed to offer superior performance paired with simple installation and use. One unit is adjustable to fit pipe sizes from 4 to 36˝ (101.6 to 914.4 mm), and offers several output options including selectable BACnet MS/TP or Modbus® RTU communications protocol over 2-wire RS-485 in addition to the standard analog, frequency and alarm outputs.

FEATURES/BENEFITS

Field configurable, integral or remote setup displays (-LCD option or accessory A-IEF-DSP) allow for ultimate flexibility by accommodating a variety of application configurations with one model through multiple display configurations i.e. pipe size, pipe material, liquid type, analog output, pulse/frequency output, alarm outputs, communication outputs, damping, and calibration factor.
High-performance accuracy is maintained through temperature, density or viscosity.
Setup Wizard and installation tool are simple to use allowing for quick and precise installation.
Accessory setup kit A-IEF-KIT ensures exact installation application depth with included thickness gage and measuring tape.
Long Life Cycle and minimal maintenance requirements with no moving parts to wear or break and electrodes that discourage fouling.
Isolation valve accessory options allow for installation in operational systems via hot-tap kit or easy removal without system downtime.
NIST calibration certificate included standard for Carbon Steel Schedule 40 pipes sized 4˝ (100 mm), 6˝ (150 mm), 8˝ (200 mm), and 10˝ (250 mm) with high accuracy option.

APPLICATIONS

Boiler feed water
Chilled water
Open and closed loop condenser water
Irrigation system
Process and coolant flow
Groundwater remediation
Chemical processing
Pump protection
Wastewater
Mining

SPECIFICATIONS

Service: Compatible clean or dirty non-coating, conductive liquids.
Range: 0 to 20 ft/s (0 to 6 m/s).
Wetted Materials: Body shaft/fitting: 316SS; Electrodes: 316SS; Electrode cap:
Polymer/Polystyrene; O-ring: Silicone.
Accuracy: IEF-HX-X: ±0.5% of reading at calibrated velocity; ±1% of reading from 2 to 20 ft/s (0.6 to 6 m/s) ±0.02 ft/s (±0.006 m/s) at < 2 ft/s (0.6 m/s). IEF-SX-X: ±1% FS.
Temperature Limits: Ambient: -20 to 160°F (-29 to 71°C); Process: 15 to 250°F (-9 to 121°C); Storage: -40 to 185°F (-40 to 85°C).
Process Connection: 1˝ NPT or BSPT with accessory full port ball valve options.
Pressure Limits: 400 psi (27.6 bar) @ 100º F (37.8°C).
Pressure Drop: < 0.1 psi at 12 ft/s in 4˝ (101.6 mm) and larger pipe.
Outputs:
1. Analog: 4 to 20 mA, 0 to 5 V, 0 to 10 V or 2 to 10 V (display selectable);
2. Pulse/Frequency: 0 to 15 V peak pulse, 0 to 500 Hz or scalable pulse output (display selectable);
3. Alarms: (1) Empty pipe detection or minimum/maximum velocity, (display selectable); (1) Reverse flow output indication.
Power Requirements: 12 to 42.4 VDC, .25 A @ 24 VDC; 12 to 36 VAC.
Electrical Connection: Removable terminal blocks, model selectable 1/2˝ female NPT conduit connection, PG 16 gland or PG 16 gland with (2) 10 ft (3 m) 9 conductor 22 AWG plenum rated cables, accessory cable lengths up to 200 ft (61 m) optional.
Display (-LCD option): 2˝ ( 5.08 cm) x 2˝ (5.08 cm) graphic LCD with backlight.
Conductivity: >20 microsiemens.
Enclosure Material: Powder coated die cast aluminum.
Enclosure Ratings: NEMA 6P (IP68) (Non-display models); NEMA 4X (IP66) (-LCD option).
Compliance: BTL, CE.

DIMENSION

COMMUNICATIONS (-COM OPTION)

Type: BACnet MS/TP or Modbus® RTU communication protocol (default disabled, display selectable).
Supported Baud Rates: 9600, 19200, 38400, 57600, 76800, or 115200 bps (display selectable).
Device Load: 1/8 unit load.

ADDITIONAL SPECIFICATIONS

Applicable Pipe Material: Most popular plastic and metal pipes; i.e. Carbon steel, SS, copper, UPVC/PVDF, galvanized steel, mild steel, and brass.
Applicable Pipe Size: IEF-HX-X: 4 to 10˝ (101 to 254 mm); IEF-SX-X: 4 to 36˝ (101 to 914 mm).
Diameter Length Requirements: >10 upstream, >5 downstream. Glycol: 0 to 100% display selectable.

MODEL CHART

Example| IEF| -L| N| -CND| -LCD| IEF-LN-CND- LCD
Series| IEF| | | | | Insertion electromagnetic flow transmitter
Accuracy| | L G S F I E T

H

| | | | Standard accuracy < 4 to10˝ (200 to 250 mm) pipe; 1% FS

Standard accuracy > 10 to 36˝ (250 to 900 mm) pipe; 1% FS

Standard accuracy 4 to 36˝ (100 to 900 mm) pipe; 1% FS

High accuracy 4˝ (100 mm) pipe; 1% of reading

High accuracy 6˝ (150 mm) pipe; 1% of reading

High accuracy 8˝ (200 mm) pipe; 1% of reading

High accuracy 10˝ (250 mm) pipe; 1% of reading

High accuracy 4 to 10˝ (100 to 250 mm)

pipe; 1% of reading

Process

Connection

| | | N

B

| | | 1˝ male NPT

1˝ male BSPT

Electrical Housing Connector| | | | CND

PG 10

| | 1/2˝ female NPT conduit connection without cable

PG gland without cable

PG gland with 10’ cable

NIST FC CC

| Integral LCD display

BACnet or Modbus® communication protocol (display selectable)

Six point NIST traceable calibration certificate

Factory calibration certificate for 0.5% of reading at single point

Custom configured for specific installation

Note: For CC option, must provide completed configuration paperwork.

ACCESSORIES

ACCESSORIES

Model| Description
A-IEF- KIT

A-IEF- DSP

A-IEF-CBL-50 A-IEF-VLV-BR A-IEF-VLV-SS A-IEF-INGD

A-IEF- PA

| Setup kit (includes setup display, thickness gage and measuring tape)

Setup display

Plenum rated cable 50 ft (15.2 m) 1-1/4˝ full port isolation valve brass

1-1/4˝ full port isolation valve 316SS Installation alignment kit

AC wall adapter

INCLUDED WITH THE FLOWMETER
Carefully unpack the shipping container of your new Series IEF Insertion Electromagnetic Flow Transmitter and remove the following items:

(1) Series IEF Insertion Electromagnetic Flow Transmitter
(1) A-IEF-INGD Installation Alignment Kit:
1. Alignment Scale
2. Alignment Rods
3. Thumbscrews
(1) 3 mm Allen Wrench (not shown)

RECOMMENDED TOOLS

(2) 12˝ (300 mm) adjustable wrenches
(1) 12˝ (300 mm) pipe wrench

SETUP

Selecting Installation Location

Although the unit may be installed in any orientation, the ideal mounting position is on the side of the pipe (2 o’clock or 10 o’clock position) as this generally minimizes possible air or sediment interference with the Series IEF.
Note: When installing a unit with an integral display select an installation location that allows for clear viewing of the display and proper earth ground.
Insert the IEF in a pipe via a threaded Tee, Saddle, or welded integrally reinforced branch connection outlet fitting.
If a Hot-Tap option is required, use a 1-1/4˝ valve kit with proper mounting hardware available in Model A-IEF-VLV-BR or A-IEF-VLV-SS. A 1˝ (25.4 mm) hole in the pipe is required for proper installation.
Select a location that will minimize flow distortion with adequate upstream and downstream pipe diameters as displayed. Ideal installation will have a minimum of 10 pipe diameters upstream relative to the instrument and a minimum distance of 5 pipe diameters downstream.

INSTALLATION

To prepare the meter for installation, mount the provided alignment scale to the side of the meter with the two provided thumbscrews. The thumbscrews are to be inserted through the alignment scale slots and into the holes in the side of the lid as shown in Figure 4, finger tighten only. Be sure to orient the alignment scale as shown in figure below. Actual scale setting determined in next step.

For Custom Configured Models (-CC Option)

Locate the configuration tag attached to the Series IEF to identify the value of the alignment scale setting. Position the alignment scale such that the scale setting is lined-up with the seam of the enclosure as shown in Figure 4. Minor scale marks are in 1/20ths Securely tighten the thumbscrews.
Refer to Preparing the Unit for Installation section.

For Field Configurable Models

For field configuration a display is required (-LCD option or accessory A-IEFDSP) and needs to be powered via normal field wiring or with the AC wall adapter accessory A-IEF-PA ( A-IEF-DSP and A-IEF-PA are also available in the accessory setup kit A-IEF-KIT).
When using the AC wall adapter and the cable is supplied, connect the red (positive +) and black (common -) wires of the cable bundle marked “A” to the open terminals of the AC wall adapter. This will provide temporary power to the meter to complete the installation set up.
For field wiring refer to the wiring chart tag attached to the Series IEF to identify the terminal block pins for positive (+) and common (-) connection.
Unscrew the four captured cover screws using the supplied 3 mm Allen wrench to remove and set aside enclosure cover.
Insert one connector of the ribbon cable supplied in the setup kit into the connector labeled “Display” in the middle of the unit. Be sure to orient the keying feature/tab. See Figure 5 below:
Plug the other end of the cable into the bottom of the supplied portable display being sure to orient the keying feature/tab as shown:
Apply power to the unit and the display will turn-on automatically. Follow the on screen directions for entering the necessary parameters to setup the unit and obtain the alignment scale setting value.
NOTICE Precise pipe measurements are required for high performance installation. The A-IEF-KIT includes setup display A-IEFDSP, thickness gage UTG and measuring tape A-IEF-MSTP used to obtain these measurements. When the precise pipe measurement information is known select Option 2 High Performance setup in the Install Kit option of the display selection
NOTICE When using measuring tape A-IEF-MSTP to measure pipe circumference use the 100ths side to measure the circumference of the pipe without insulation.

Preparing the Unit for installation (Refer to Figure 7)

Apply appropriate sealant to the process collet (5) threads such as application suitable sealant tape or paste.
Install the process collet (5) in valve (6) then tighten by hand.
Tighten the process collet (5) with a wrench using the hex geometry until snug.
NOTICE Use two wrenches, one to hold the valve and another wrench to turn the process collet.
Slowly open the valve handle (7) checking for leaks.
If leaks occur around threaded connections, close the valve and tighten those connections.
Enclosure
Cable Nut
Probe Shaft
Compression Fitting
Process Collet
Valve (optional)
Valve Handle (optional)
Pipe
Sensor Probe

NOTICE Do not adjust housing compression nut at top of probe shaft (3).

Sensor Alignment
A depth and flow alignment installation tool is provided to ensure proper depth insertion and flow alignment. To set the insertion depth verify the alignment scale has not moved from its original setting based on the alignment scale value set previously.
Loosen compression nut (4) to allow the shaft (3) freedom to travel up and down and rotate inside the process collet (5).

Install Depth and Alignment Rods

Remove alignment rods from sides of alignment scale by sliding them out.
Insert the two rods into the alignment scale as shown.
Rotate the transmitter so the pipe alignment rod is parallel with the flow in the pipe.
Slide the shaft (3) down into the process collet (5) until the depth rod contacts the pipe. If pipe insulation is present press the rod through the insulation.
- a. Tighten the nut (4) to 15 ft.-lbs (20.3 N m)
- b. Remove the flow alignment rod and loosen the thumbscrews to slide the alignment tool up to allow removal of the depth alignment rod. Store both rods in the storage slots on the sides of the alignment scale. Tighten thumbscrews and leave alignment tool mounted on unit for storage.

GROUNDING

Metallic Pipe
For proper operation the instrument must be earth grounded. Connect a ground wire to meter housing via the ground lug on the housing collet. Connect the ground wire to a known earth ground. If the pipe is grounded, connect the ground wire to the metal pipe using suitable devices such as grounding clamps.

Non-Metallic Pipes

Connect a ground wire to the transmitter housing per the ground lug on the housing collet.
Connect the ground wire to a known earth ground.
Ground the fluid to earth.

POWER SUPPLY
Choose a power supply with a voltage and current rating sufficient to meet the power specifications under all operating conditions. If the power supply is unregulated, make sure the output voltage remains within the required voltage range under all power line conditions.

Modbus® is a registered trademark of Schneider Electric USA, Inc.
©Copyright 2023 Dwyer Instruments, LLC

DWYER INSTRUMENTS, LLC
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.
Phone: 219/879-8000
Fax: 219/872-9057
www.dwyer-inst.com
e-mail: info@dwyermail.com

For full Installation and Operating Instructions refer to Bulletin F-IEF-F at http://www.dwyer-inst.com/Product//SeriesIEF#literature