Macnaught MX Series Manual de usuario
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INSTRUCTION MANUAL
MX Series Pulser Options
Macnaught MX flowmeter series
MXL-INST-PULSE
Rev 3
04/2016
TOTHE OWNER
This manual contains connection and operating instructions for a selection of Pulse output options.
Please read and retain this instruction manual to assist you in the operation and maintenance of these products.
In addition Macnaught offer a comprehensive set of online support materials to compliment this instruction
manual. You can access the website by scanning the QR code or visiting the Macnaught website
www.macnaughtflowmeasurement.com.au
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INDEX
Installation
Important Information Page 3
………………………………………………………….
Operating Principle Page 3
………………………………………………………….
Sensors
Electrical Specifications Page 4
………………………………………………………….
DIN Compact Pulser Module
Introduction Page 5
………………………………………………………….
Overview Page 6
………………………………………………………….
INDEX
Locking Facility Page 7
………………………………………………………….
Wiring Instructions
Reed / Hall Module
Page 8
………………………………………………………….
Wiring Instructions
Dual Hall Module
Page 9
………………………………………………………….
Sensor cable Page 10
………………………………………………………….
Field Connector Page 11
………………………………………………………….
Industrial Pulse Cap
Introduction Page 12
………………………………………………………….
Exploded Diagram Page 13
………………………………………………………….
Technical Specifications Page 14
………………………………………………………….
PCB Terminal block specifications Page 15-16
………………………………………………………….
Wiring Diagrams Page 17
………………………………………………………….
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IMPORTANT INFORMATION
OPERATING PRINCIPLE
Fluid passing through the meter causes the rotors to turn, as shown in the image below.
One of the rotors (the active rotor) is fitted with magnets. As the rotors turn, the passing magnet is picked up by a
Magnetic Sensor (either Reed and Hall Effect sensors) located on the Pulser Circuit Board.
The excitation of these sensors provides a ‘Raw Pulse Output’ which relates to a designated K-Factor according
to meter model. The K Factor is the number of pulses (rotations) per unit volume of fluid (e.g. Litres or Gallons)
(e.g. K Factor of 36 translates to there being 36 pulses for every litre of fluid that has passed through the
flowmeter)
This Pulse Output Signal can either be fed directly to an external receiving device (e.g. Data Logger or PLC) or
alternatively to an LC Display, which then conditions the raw pulse input signal to display volume of fluid passed.
(e.g. Displays 1 Litre for every 36 pulses received)
The ‘Active Rotor is
fitted with magnets
Flow Direction
It is recommended the Reed Switch is used with low supply voltage applications up to 12VDC
The reed switch can cause inaccurate rate counts when used with high speed counters.
It is advised that a low speed counter is used or alternatively a de-bounce circuit be installed.
Reed Switch
NPN Open Collector Hall Effect Sensor
Suitable for supply voltage applications exceeding 12VDC
The output for the hall effect sensor is NPN (current sinking, open collector). For correct operation, it is advisable to have a
pull-up resistor installed.
The hall effect sensor is equipped with a 1k8Ωpull-up resistor between signal and supply as standard.
This in-built pull-up resistor can be bypassed by moving the jumper pin to the off position if required.
A pull-up resistor of your choosing can be installed between signal and supply, provided the in-built pull-up resistor be
bypassed first.
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Sensor configuration: Reed and Hall Effect
Hall Effect IC
(Solid State Sensor)
Maximum Sensor Supply Current 7.5mA
Maximum Output Current 25mA
Operating Voltage 4.5V to 24V DC
Transistor Type Open-Collector NPN
Reed Switch
(Mechanical Sensor)
Maximum Current 500mA
Maximum Voltage 24V DC
Contact Rating 10W
Note: Contact rating maximum is 10W. Neither current nor voltage maximums should be exceeded in achieving this.
Pulse Output Signals 2 x Digital (Square Wave)
SENSOR ELECTRICAL SPECIFICATIONS
Sensor configuration: Dual Hall Effect
Dual Hall Effect IC
(Solid State Sensor)
Maximum Sensor Supply Current 7.5mA
Maximum Output Current 25mA
Operating Voltage 4.5V to 24V DC
Transistor Type Open-Collector NPN
Note: Contact rating maximum is 10W. Neither current nor voltage maximums should be exceeded in achieving this.
Pulse Output Signals 2 x Digital (Square Wave)
The range of Macnaught Pulser Options is a series of engineered sensor housings, designed to offer the installer
flexibility according to the specific application and industrial environment.
Each of these variations support a standard set of sensor configurations;
Configuration 1 Reed and Hall Effect Sensors
Configuration 2 Dual Hall Sensors
The following tables outline the Electrical Specifications for each of the configurations.
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The DIN Compact Pulser Module offers a variety of sensor and cabling options.
Incorporating the M-LOCK (¼ turn) mounting system, the module also provides a locking facility for added
security against unauthorised removal.
The following provides an overview of both the Sensor and Connection options available with the DIN Pulser
Module. A line drawing outlining the below is available on the following page.
Sensor options
Reed and Hall effect sensor.
Dual Hall Effect sensor
Please see pages 4 for electrical specifications and pages 8-9 for the wiring instructions.
Cable Connection options
The DIN Compact Pulser Modules accommodates the choice of either a field mount connector facility, or a fixed
(M12) connection cable.
M12 DIN plug and socket complete with 5 core cable. (see page 10).
Field attachable socket with 5 position screw terminals (see page 11).
DIN COMPACT PULSER MODULE INTRODUCTION
M12 DIN cable Field attachable socket
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DIN COMPACT PULSER MODULE OVERVIEW
Field Connection Options
Sensor Options
Field Connector
Part number: MXD-CF
Sensor Cable (1.5 meters)
Part number: MXD-C1.5
Sensor Cable (5 meters)
Part number: MXD-C5
Sensor Cable (10 meters)
Part number: MXD-C10
Part number: MXD-HH
Hall Effect 1 Hall Effect 2 Temperature
Part number: MXD-RH
Hall Effect 1 Reed
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Locking Facility
The DIN Pulse Module has the facility to lock into place after the module has been fitted to the Flowmeter
(please see instruction below).
The locking facility is to provide an added safeguard against the unauthorised removal of the Pulser Module.
*This is enabled by fitting the special ‘Locking screw’ supplied with every Pulser Module.
1. Fit DIN Pulse Module to the flowmeter
2. Locate the ‘Lock’ symbol and remove existing screw.
3. Replace with the ‘Locking Screw’ supplied with the unit.
Please note:
During initial installation of the locking screw, the screw will need to pierce the bottom of the pulser.
This will enable the screw to ‘lock’ into the plastic cam that is fixed to the flowmeter.
DIN COMPACT PULSER MODULE LOCKING FACILITY
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Pin designation M12 male connector
Contact designation M12 cable
Contact designation M12 field connector
WIRING INSTRUCTIONS REED / HALL MODULE (PART NUMBER MXD-RH)
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Pin designation M12 male connector
Contact designation M12 cable
Contact designation M12 field connector
Schematic diagram
Schematic diagram
Schematic diagram
WIRING INSTRUCTIONS DUAL HALL MODULE (PART NUMBER MXD-HH)
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DIN COMPACT PULSER MODULE SENSOR CABLE
General
Connector M12 (right angle)
Standards / regulations IEC 61076-2-101
Part Numbers
MXD-C1.5 1.5 meter connection cable
MXD-C1.5 5 meter connection cable
MXD-C1.5 10 meter connection cable
Technical Specifications (Plug and socket)
Number of positions 5
Protection IP67
Material of body TPU (thermoplastic polyurethane)
Knurled section zinc die-cast, nickel-plated
Rated voltage / current 60v / 4A
Contact resistance Max 5 mΩ
Ambient temperature (plug and socket) -25°C - 90°C
Technical Specifications (cable)
Core Number 5 core
Core colours brown, white, blue, black, green-yellow
Cable material PUR (polyurethane)
External diameter 5mm
Conductor cross section 5 x 0.34mm² (signal lines)
Rated voltage / current 60v / 4A
Ambient Temperature (operation) -25°C - 80°C (cable, fixed installation)
Cable resistant to acids, alkaline solutions and salt water
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