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Multi-Mag
Flo-System
Model 268

 
Measurement
Volumetric flow in filled flow conduits 4" (101.6 mm) to 120" (3 m) utilizing insertable electromagnetic averaging sensor. Flow indication in English Std. or Metric units. 

Flow Measurement
Method: Electromagnetic
Zero Stability: ±0.03 ft/s (±.009 m/s)
Linearity: 0.3% of range
Repeatability: 0.20% of range
Accuracy: ±1% of reading from 0 to +20 ft/s + zero stability
Has reverse flow indication.
Range: (nominal pipe sizes)

Sensor Size-Velocity Range for Pipe Sizes

2" Sensor
Velocity Range

Pipe Sizes

(4" to 60")

0 to 40 ft/s

10" & under

0 to 35 ft/s

12" & under

0 to 30 ft/s

16" & under

0 to 25 ft/s

20" & under

0 to 20 ft/s

24" & under

0 to 15 ft/s

36" & under

0 to 10 ft/s

42" & under

0 to 7.5 ft/s

60"  & under

3" Sensor
Velocity Range

Pipe Sizes
(42
" to 120")

0 to 15 ft/s

60" & under

0 to 10 ft/s

100" & under

0 to 7.5 ft/s

120" & under

 

 

 

 

 

 

 

 

(Contact factory for information on models with bi-directional flow capability or velocities in excess of above specifications.)

Materials
Sensor: Fiberglass
Cable: Polyurethane outer jacket
Insertion Hardware: 316 Stainless Steel exposed to flow.
Compression Seal: Silicone Rubber
Sensor Electrodes: Carbon
Number of electrodes varies with sensor length.

Transmitter Enclosure 
NEMA 4X/IP65. Separate termination and electronics compartments. Glass filled polypropylene with clear polycarbonate window.

Transmitter-Dimensions
8.4"H x 6.4"W x 2.8"D
(214mm x 163 mm x 70 mm)

Transmitter-Weight
3.2 lbs. (1.5kg)

Potable Water Applications
Suitable for use in contact with potable water. Water Byelaws Scheme (WBS) Approved Product. Meets BS6920 - Cert. # 9706516

Configuration and Set-Up
Programming can be easily done on site using the keypad. Two levels of user defined password protection are provided.

Outputs

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Analog: Galvanically isolated and fully programmable for zero and full scale. Output capability <16V. (800 ohm, 4-20mA) Secondary range enabled by external input or programmed alarm condition as a percent of full scale.

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Pulse/Frequency: One frequency/pulse output for flow rate or for external totalizer. Capable of sinking <250 mA @ <35V.

Dual Alarms
(2 separate outputs): Isolated protected transistor switch capable of sinking <250mA @ <35V. Note: Not isolated from frequency output. Fully programmable for high/low flow rates. % of range, empty-pipe, fault conditions, forward/reverse, polarity (normally open/close), analog over-range, pulse over-range, pulse cutoff, etc .

Environmental
Pressure/Temperature Limits:
Sensor: Flow Temperature Range
32° to 110°F (0° to 44°C) @ 250 psi - Standard
32° to 140°F (0° to 60°C) @ 250 psi - Optional


Electronics: Temperature limits
Operating: -14° to 140°F (-25° to +60°C)
Storage: 5° to 167°F (-15°C to +75°C)

Electrical Connections
0.5 inch NPT with gasket seal

Keypad and Display
Can be used to access and change all set-up parameters using four membrane keys and 3-line display.
3-Line, 16 character, backlit LCD display with large 1/2" numerals for flow rate and two lines for engineering units, totalizers, alarm status, velocity and percent of range.

Isolation
Galvanic separation to 50VDC between analog, pulse/alarm, and earth/ground.

Electrical Safety
Meets ANSI/ISA-S82.10-1988 and S82.03-1988

Power Supply
Universal switch mode.
AC: 85 to 265V 45 to 400 Hz at 20VA max. or DC: 11 to 40V at 20VA max. 
AC or DC must be specified at time of ordering.

Vibration Specification
Meets BS2011: Part 2.1Fc: 1983

Internal Totalizer
9-digit totalizer. Can be programmed to reset via external input or the keypad. Reset from keypad can be password protected.

Test Mode and Output Circuit Loop Verification
After transmitter has been programmed, operation of the test mode will drive all outputs to a programmed value which provides a total system test.

Ordering Information
Multi-Mag™ flowmeter includes modified NEMA 4X/IP65 (separate termination and electronics compartment) glass filled polypropylene electronics enclosure with polycarbonate window, electromagnetic velocity sensor with 20' cable, 4 membrane keys for configuring the transmitter, 3-line LCD backlit display with one line of 5-1/2" numerals for flow rate indication and 2 lines containing 16 characters for viewing engineering units, velocity, totalizer, alarm status and flow rate expressed as a percent of full scale, one flow proportional or frequency output (transistor type) for flow rate or for external totalize, a 4-20 mA output for flow and one instruction manual.

Options include high temperature sensor, extended sensor cable, (Maximum length 500' (152 m)), pole mounting kit, insertion tool, sun shield, and additional instruction manuals. 


Contact factory for Sensor Mounting Hardware Ordering Information
 

 

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 Multi-Mag Specifications 

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Address: Marsh-McBirney, Inc. 4539 Metropolitan Ct. Frederick, Maryland 21704 USA
Telephone:
U.S. and Canada 1-800-368-2723 - Outside the U.S. 1-301-874-5599 - Fax: 1-301-874-2172

Copyright Marsh-McBirney, Inc.  All rights reserved.