INST-006/009P_R10
04/2017
ELECTRONIC MODEL 006/009 (¼”)
OVAL GEAR FLOWMETER
INSTRUCTION MANUAL— ‘F’ Serial Meters
To the Owner
PLEASE READ THIS SAFTEY INFORMATION
CAREFULLY BEFORE USE.
Read and retain this instruction manual to assist you
in the operation and maintenance of this product.
If you have any problems with the meter, refer to the
maintenance and trouble shooting sections of this
manual.
This manual contains connection and operating instructions for meters with Pulse outputs.
Models with a Liquid Crystal Display have an additional LCD instruction manual supplied. If you need
further assistance, contact your local representative
or distributor for advice.
This Flow Meter has incorporated the oval rotor principal into its design. This has proven to be a reliable
and highly accurate method of measuring flow.
Exceptional repeatability and high accuracy over a
wide range of fluid viscosities and flow rates are
features of the oval rotor design. With a low pressure
drop and high pressure rating oval rotor flow meters
are suitable for both gravity and pump (in line)
applications.
This instruction manual covers pulse meters constructed in Aluminium or Stainless Steel. Also included are the high pressure versions of this model.
Page 1 of 20
Important Information
WARNING
Before use, confirm the fluid to be used is compatible with the meter. Refer to Industry fluid
compatibility charts or consult your local representative for advice.
To prevent damage from dirt or foreign matter it is
recommended that a Y or Basket type 200 mesh
strainer be installed as close as possible to the
inlet side of the meter. Contact your local representative for advice.
CAUTION
CAUTION
When a strainer is installed it should be regularly inspected and cleaned. Failure to keep
the strainer clean will dramatically effect flow
meter performance.
CAUTION
To prevent damage caused by air purge slowly
fill the meter with fluid. To reduce pressure build
up turn off the pump at the end of each day.
Maintenance can be carried out to the liquid crystal
displays and pulse units without removing or isolating the meter from the line. When maintenance to
any other part of the meter is required, the meter
must be isolated and the line pressure reduced.
The reed switch pulse unit can cause inaccurate
rate counts when used with high speed counters. It is
advised that a debounce circuit be used. Contact
your meter distributor for further information.
Operating Principle
When fluid passes through the meter the rotors
turn, as shown below. The magnets which are
located in the rotors will pass across the pulser
circuit board (containing either Reed switches or Hall
Effect sensors). A signal is generated which is then
sent by the Pulse Circuit Board (PCB) to the relevant
LC display or receiving instrument..
Installation Procedure
1) It is recommended that when setting up pipe work
for meter installations a bypass line be included in
the design. This provides the facility for a meter to
be removed for maintenance without interrupting
production. (see figure)
2) Use thread sealant on all pipe threads.
3) For pump applications ensure pipe work has the
appropriate working pressure rating to match the
pressure output of the pump. See Meter
Specifications section for further details.
4) Install a wire mesh strainer, Y or basket type
200 mesh (74 micron), as close as possible to the
inlet side of the meter.
5) Ensure that the meter is installed so that the flow
of the liquid is in the direction of the
arrows embossed on the meter body.
6) The meter can be installed in any
orientation as long as the meter shafts
are in a horizontal plane. (Refer to
figures to the right for correct installation) The register assembly may be
orientated to suit the individual.
Note: Incorrect installation can cause
premature wear of meter components.
7) Do not over tighten meter connections. Note: Incorrect installation can
cause premature wear of meter components.
8) It is important that after initial installation you
fill the line slowly, high speed air purge could
cause damage to the rotors.
9) Test the system for leaks.
10) Check the strainer for swarf or foreign material,
after the first 200 litres check periodically,
particularly if the flow rate decreases.
Page 2 of 20
Maintenance Procedures
Disassembly Reassembly
Ensure that the fluid supply to the meter is disconnected, and the line pressure is released before disassembly, with the exception for repair or
maintenance to the LC Display or PCB where
there is no necessity to isolate the meter from flow.
Refer to the exploded parts diagram on subsequent
pages for item numbers.
1. Loosen and remove 4 Phillips head or cap head
screws (Item 7), see Page 7.
2. Remove the meter cap (Item 5) and O-Ring (Item
4).
3. Remove the rotors (Item 2 & 3), note the position
of the rotor with the magnet(s) or grub screws
4. Clean and Inspect all components, replace as
necessary, see page 8 for spare parts listing.
Troubleshooting Guide
Prob-
lem
Fluid will
not flow
through
meter
Reduced
flow
through
meter
a) Foreign matter blocking
rotors
b) Line strainer blocked
c) Damaged rotors
d) Meter connections over
tightened
e) Fluid is too viscous
a) Strainer is partially
blocked
b) Fluid is too viscous
Cause Remedy
a) Dismantle meter, clean rotors
(strainer must be fitted in line)
b) Clean strainer
c) Replace rotors (Strainer must
be fitted in line)
d) Re-adjust connections
e) See specifications for maximum viscosity
a) Clean strainer
b) See specifications for maximum viscosity
1. Replace the rotors (Item 2 & 3), see below for
correct orientation. Rotate the rotors by hand to
ensure correct engagement.
2. Fit the O-Ring (Item 4) into the O-Ring groove in
the meter body (Item 1).
3. Fit the top cap assembly (Item 5), fit the legend
plate (Item 6) into correct orientation. Ensure all
the alignment marks are lined up with the mark
on the body.
4. Fit and tighten the 4 bolts/screws (1-3-2-4) to the
required torque.
5. Check meter function using low air pressure.
6. Restore the fluid & reconnect the wiring as
detailed on page 5.
Note:
The Active Rotor, Alignment Dimple and Cap Notch
must be aligned when assembling the flow-meter
Cap Notch
Active Rotor
Meter
reading
inaccurate
Meter not
giving a
pulse
signal
LCD
register
not working
a) Fluid flow rate is too high
or too low
b) Air in fluid
c) Excess wear caused by
incorrect installation
a) Faulty hall effect sensor
b) Faulty reed switch
c) Magnets failed
a) Battery not connected
properly
b) Battery flat
c) Faulty wiring connections
d) Faulty LC Display
e) Faulty connection from
LC Display
a) See specifications for minimum and maximum flow rates
b) Bleed air from system
c) Check meter body and rotors.
Replace as required. Refer to
installation instructions
a) Replace PCB Board
b) Replace PCB Board
c) Replace magnets
a) Check battery connections
b) Replace battery
c) Check wiring for loose or
faulty connections
d) Replace LC Display
e) Check wiring connections
Alignment Dimple
Port Inscription
Note: ‘CR’ Range has a notch in the body
not an alignment dimple.
‘MH’ Range can have the active rotor in either location.
Magnet hole/grub screw side must be facing
the meter body.
Page 3 of 20
Product Specifications
Flowmeter
Metric US
Refer to Flowmeter Data Plate
Refer to Flowmeter Data Plate
006 Flowmeter Range
009 Flowmeter Range
Below 5 cP 2 - 100 l/hr 0.5 - 26 G/hr
Flow Range
5 to 1000 cP 0.5 - 100 l/hr 0.13 - 26 G/hr
K-Factor (Pulses per Unit of Measure)
Below 5 cP 25 - 500 L/hr 6.6- 130 G/hr
Flow Range
5 to 1000 cP 15 - 500 L/hr 4 - 130 G/hr
K-Factor (Pulses per Unit of Measure)
Standard Operating Temperature - Types F,S,CR,
-40 to 80°C
- Types M,MH
Maximum Operating Pressure
1
CR - Corrosive Range
S - Solvent Range
F - Fuel and Oil
M - Industrial Range
MH - High Pressure Industrial Range
-40 to 120°C -40 to 248°F
500 kPa
1000 kPA
1000 kPa
5500 kPa
55000 kPa
Accuracy of Reading ±1%
-40 to 176°F
75 PSI
150 PSI
150 PSI
800 PSI
8000 PSI
1. Conforms to Directive 97/23/EC—Cat 1
High Specification Flow Meters
The following specifications apply when high temperature or high viscosity options are
used.
High Pressure (MH Model) 55000 kPa 8000 psi
High Temperature 120°C 248°F
High Viscosity Above 1000 Centipoise
Pulser Board/Sensor Specifications
There are 2 pulse board options with all Macnaught pulse flowmeters:
Standard Option 1 - 1 x Reed Switch 1x Hall Effect Output
Hazardous Option 2 - 1 x Reed Switch Output
Output Signals Standard Pulse Meter 2x Digital (Square Wave)
Reed Switch2
(Mechanical Sensor)
Metric US
Current Maximum 500mA
Voltage Maximum 30V DC
Contact Rating Maximum
3
10W
Maximum Supply Current 7.5mA
Hall Effect IC2
(Electronic Sensor)
2. Voltage & current specifications apply per sensor (not combined).
3. Contact rating maximum is 10W. Neither current nor voltage maximums should be exceeded in achieving this.
Maximum Output Current 25mA
Operating Voltage 4.5V to 24V DC
Transistor Type Open-Collector NPN
Page 4 of 20
Analogue Output (4-20mA)
Analogue outputs are available as an auxilliary display signal by including the following LCD displays with
your flowmeter. These may be fitted to the meter or remote (wall mount) types.
DRA Small display with analogue output module
ERA Large display with analogue output module
Remote or Meter Mount
Remote Mount only
Pulser Wiring Diagram - MH Model
Please read this information carefully before installation
Hall Effect:
Hall effect sensors require an external pull up resistor to be fitted by the installer for correct operation. Powering a Hall effect
sensor without a resistor wired between the supply voltage and the signal line will result in damage to the sensor.
Reed Switch:
In order to protect the reed switch from over current, and to maximise life expectancy, we recommend limiting the current
through the switch by fitting a series resistor in between the signal leg and the PLC/signal sensing device.
Standard. Option 1 Hazardous. Option 2
Pull up
Res Ω*
3
4
5
GND
SIG2
Vcc
Hall
Effect
Series
Res Ω**
Note: Reed Switches are not polarity sensitive.
1
2
V1+
V1-
Reed
Switch 1
* Macnaught pulser boards are not fitted with a pull up resistor. Consult sensor specifications on page 4 for selection of appropriate resistance.
Note: Consult the following instruction sheets if the flow meter is fitted with an LCD Display.
Display Part Number: DR DRA ER ERB ERA ERS
Instruction Sheet: DR013 DR014 MS574 MS392 MS476 MS351
** Macnaught pulser boards are not fitted with a current limiting resistor. For 12VDC we recommend a1kΩ resistor. For 24VDC, we
recommend a 1.8k-2.2kΩ resistor.
Page 5 of 20
Pulser Wiring Diagram - Models M,F,S and CR
Please read this information carefully before installation
Hall Effect:
Hall effect sensors require an external pull up resistor to be fitted by the installer for correct operation. Powering a Hall effect
sensor without a resistor wired between the supply voltage and the signal line will result in damage to the sensor.
* Macnaught pulser boards are not fitted with a pull up resistor. Consult sensor specifications on page 4 for selection of appropriate resistance.
Reed Switch:
In order to protect the reed switch from over current, and to maximise life expectancy, we recommend limiting the current
through the switch by fitting a series resistor in between the signal leg and the PLC/signal sensing device.
Sensor Wiring Connections
** Macnaught pulser boards are not fitted with a current limiting resistor. For 12VDC we recommend a1kΩ resistor. For 24VDC, we
recommend a 1.8k-2.2kΩ resistor.
Output Type Wire Function Wire Function Wire Function Note
Reed/Hall Reed Green Yellow No Polarity Re-
quired
Hall
Red + VDC Black Gnd (0V) White Signal NPN Open Col-
lector
Reed/Reed Reed Green Yellow No Polarity Re-
quired
Dual Hall Red + VDC Black Gnd (0V) White Signal NPN Open Col-
lector
Reed/Hall LCD Reed Black Black Connects to
LCD
Hall
Red + VDC Black Gnd (0V) White Signal NPN Open Col-
lector
Page 6 of 20
Exploded Diagram - Type M,F,S,CR
7
6
Item Nº Part Description
4
3
2
1
5
1 Meter Body
2 Active Rotor
3 Neutral Rotor
4 O-Ring
5 Meter Cap
6 Legend Plate
7 Meter Cap Screws
Page 7 of 20
Spare Parts Kits - Type M,F,S and CR
There are 3 Spare Kit options available for the purchase of replacement components:
Pulser Kit (PKit) - Replacement Pulser Cap
Rotor Kit (RKit) - Complete Rotor assembly
Seal Kit (SKit) - Complete set of O-Rings/Gaskets
Spare Kit Coding Procedure.
1. Determine what type of Spare Parts Kit is required (e.g. Rotor Kit)
2. Use the ‘Coding Sequence’ to construct a part number according to the meter type.
Pulser Kit - (for models M,F,S and CR)
Coding Sequence
Kit Components
Customer Model Number
PKit — Size —
Order Number Components Qty Items
e.g PKit – F006 – 2
F 006 — 1 S 2
F
Pulser Cap 1 3
Mounting Screws 2 4
1 (Reed/Hall)
2 (Reed/Reed)
Page 8 of 20
Seal Kit - (for Models M,F,S and CR)
Customer Model Number
Coding Sequence
SKit — Type Size
Kit Components
e.g SKit – F006
Order Number Components Qty Items
Rotor Kit - (for Models M,F,S and CR)
Customer Model Number
F 006 — 1 S 2
Meter Body O-Ring 1 7
F 006 — 1 S 2
Coding Sequence
Kit Components
RKit — Type Size — S
Order Number Components Qty Items
Complete Rotor Assembly 1 set
e.g RKit – F006 – S
Meter Body O-Rings 1 7
Meter Cap Screws 4
5+6
4
Page 9 of 20
Cut Away Diagram - Type MH High Pressure
Parts Identification - Type MH
Item No. Part Description
1
2
3
4
5
6
7
8
9
Meter Body
Bolt Set
Pulser Cap
Pulser Cap Screws
PCB screws
Meter Cap
Rotor Set
Meter Cap O-Ring
Pulser Cap Gasket
10
PCB
Page 10 of 20
Spare Parts Kits - (Type MH only)
There are 3 Spare Kit options available for the purchase of replacement components:
Pulser Kit (PKit) - Replacement Pulser Cap
Rotor Kit (RKit) - Complete Rotor assembly
Seal Kit (SKit) - Complete set of O-Rings/Gaskets
Spare Kit Coding Procedure.
1. Determine what type of Spare Parts Kit is required (e.g. Rotor Kit)
2. Use the ‘Coding Sequence’ to construct a part number according to the meter type.
Pulser Kit - (Type MH only)
Coding Sequence
Kit Components
Customer Model Number
PKit MH Size —
Order Number Components Qty Items
e.g PKit – MH006 – 2
—
MH 006 — 1 S 2
1 (Reed/Hall)
2 (Reed/Reed)
PCB 1 10
Mounting Screws 2 5
Page 11 of 20
Seal Kit - (Type MH only)
Customer Model Number
Coding Sequence
SKit — Type Size
Kit Components
e.g SKit – MH006
Rotor Kit - (Type MH only)
Customer Model Number
MH 006 — 1 S 2
Order Number Components Qty Items
Meter Body O-Ring 1 8
MH 006 — 1 S 2
Coding Sequence
Kit Components
RKit — Type Size — S
Order Number Components Qty Items
Complete Rotor Assembly 1 set
e.g RKit – MH006 – S
Meter Body O-Rings 1 8
Meter Cap Screws 4
7
2
Page 12 of 20
Wetted Parts
Model 006
Component Type 'F' Type 'S' Type 'M' Type 'MH' Type 'CR'
Meter Body
Meter Cap
Rotor Shafts
Rotors - Standard
- High Temp.
Rotor Bushes
O-Ring
Model 009
Component Type 'F' Type 'S' Type 'M' Type 'MH' Type 'CR'
Meter Body
Al Al SS SS PPS
Al Al SS SS PPS
SS SS SS SS Hast C
SS SS SS SS PPS
- - SS SS -
CA CA CA CA -
FKM FFKM FFKM FFKM FFKM
Al Al SS SS PPS
Meter Cap
Rotor Shafts
Rotors - Standard
- High Temp.
- High Viscosity.
Rotor Bushes
O-Ring
K - FEP/PTFE Encapsulated
SS - Stainless Steel 316 /304
Al - Aluminium AA610
CA - Carbon
FKM - Viton ®
PPS - Polyphenylene Sulphide
PVDF - Polyvinylidene Flouride
FFKM - Peruoro Elastomer
Hast C - Hastelloy C ™
Al Al SS SS PPS
SS SS SS SS Hast C
SS SS SS SS PPS
- - SS SS -
SS SS SS SS -
CA CA CA CA -
FKM FFKM FFKM FFKM FFKM
Page 13 of 20
Pressure Drop v’s Viscosity
100%
50%
100%
50%
10%
25%
5%
Page 14 of 20
Meter Dimensions
B - Register Height
CR Series (Ryton) F and S Series' (Al) M Series (SS) MH Series (SS HP)
Pulse 58 58.6 58.6 108
DR 100 100 100 126
A - Face to Face Length
CR Series (Ryton) F and S Series' (Al) M Series (SS) MH Series SS HP)
RC/NPT 64 60 50 83
RP 60 50 83
Page 15 of 20
Notes
Page 16 of 20
Notes
Page 17 of 20
Notes
Page 18 of 20
Notes
WEEE Directive - Waste Electrical and Electronic Equipment
The WEEE Directive requires the recycling of waste electrical and electronic equipment in the European Union.
Whilst the WEEE Directive does not apply to some of Macnaught’s products, we support its policy and ask you to be aware of how to dispose of this product.
The crossed out wheelie bin symbol illustrated and found on our products signifies that
this product should not be disposed of in general waste or landfill.
Please contact your local dealer national distributor or Macnaught Technical Services
for information on product disposal.
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