Azbil Kimmon Co., Ltd.

Handling of water meter and caution upon installation
Please be sure to observe the following directives for safe and correct use of the device
Please be sure to observe the contents of this manual for safe use of the productIndicates that there is a risk of death or serious injury if the indication is ignored and the product is handled incorrectly.
Warning
If you ignore this indication and handle the product incorrectly, there may be a risk of minor injury or property damage.
Caution

About picture display
In order to prevent you from harming yourself and other people and damage to your property, various pictograms are used in the instruction
manuals and product labeling to ensure that you use the product safely and correctly. The display and the meaning are as follows.

Pictogram example
This symbol tells you that there iscontent that urges you to pay attention(danger/warnings)

This symbol indicates that theaction is prohibited. The specificdetails of the prohibition are drawn in
the figure.

Safety Precautions
Warning
Please be careful when carrying or installing the meter.
There is a risk of injury if the product is dropped.
When carrying the weight, be careful not to hit it against thehuman body or other equipment.
Please note that not only will this unit be damaged, but it may
also cause injury.

All meters are subject to disassembly prohibitionIf you use ameter that uses electronic components inside, there is a risk offire and burns. (Electronic water meter/battery electromagneticwater meter)

Attention
Do not touch the contact screws and edges.
Use gloves when handling as this may result in injury.
Use an appropriate tool such as a wrench for the piping work.
It may cause a failure or accident.
Be careful not to get your body or clothes caught on thescrews and edges.
There is a risk of injury.
Do not use this device in anything other than tap water.
It may cause a malfunction.
When removing the meter, be sure to sufficiently release thepressure in the piping.
If the pressure in the pipe is high, water may spurt out of themeter’s mounting part.

This symbol will advise you what actions totake in a particular situation.

Do not give a strong shock while storing the meter.
Dropping or striking the meter may damage the impeller bearings,damage the components inside the transmitter, or remove thesolder, making it impossible to measure.
Do not give strong vibration while storing the meter.
If the meter is subjected to strong vibration or vibration over along period of time, the impeller bearing may be damaged, thetransmitter may be damaged, or the solder may come off,
resulting in the inability to measure.
Do not store the meter in places with high or lowtemperatures.
The ideal storage temperature range of the meter is -20°C to+40°C. If you store the product outside this temperature range,
the functions of the transmitter parts, etc. may deteriorate andyou may not be able to measure with it.
While storing the meter, make sure that there is no air flow
inside of it.
When air passes through the meter, it may cause the impeller torotate which may alter the measured value. Please attach aprotective cap etc. to the entrance and exit mouth of the meter
during storage.
Make sure that no foreign matter enters the meter while itis being stored.
If foreign matter enters the meter, it may interfere with therotation of the impeller and make measuring impossible. Whilestoring the meter, attach a protective cap etc. to the entrance andexit mouth of the meter.
When carrying the meter, do not carry it by the lid or thesignal cable.
The lid and signal cable mounting parts may be damaged, so holdthe meter body when carrying it.

Handling Precautions
Attention

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Azbil Kimmon Co., Ltd.

Equipment location caution
When installing the meter, please install it in a location thatsatisfies the following criterias.

Caution
Do not install in a place filled with flammable gas.
It may cause fire, electric shock or injury.

Attention
Install the device horizontally.
Follow the arrow displayed on the meter and install it horizontallywith the indicator facing upward so that it is not reversed.

It may adversely affect the meter and cause immobility ormalfunction.
Do not install in a place subject to direct sunlight or near aheating element.
When using the meter outdoors, place a roof over it as to not
expose it to direct sunlight.

Caution during installation
When installing the meter, be sure to observe the following
measures to maintain correct measuring accuracy.

Attention
For the meter installation dimension, make sure that thetotal length of the meter and the thickness of the packing arecombined.
If the mounting dimensions are inaccurate, the meter will not fit
in the pipe.

Install the device in a place that is easy to install andremove.
The meter needs to be replaced every 8 years. Due to this, choosea place where the meter can be easily accessed.
Install the device in a place where it can be easily read.
The meter is bound to be checked upon regularly as to retrieve its
data. For this reason also, select a location that is not affected byhumidity and rainwater, or a location where the device can beeasily read.
Do not install in places where there is a risk of freezing.
Freezing and swelling of water during winter may damage themeter. Take measures to prevent freezing, such as installation
below the freezing depth and heat insulation.
Do not install in a place where air remains in the meter.
Always keep the meter full of water.
Install it in a place where there is little fluctuation in waterpressure.
Accurate metering may not be possible because the rotation of
the impeller is amplified due to fluctuations in water pressure.
Maximum working pressure is 1MPa.
Do not install in a place subject to vibration.
Vibration may amplify the rotation of the impeller, which may
prevent accurate measuring.
Do not install in a place where the device may be affectedby electrical noise.
In the vicinity of high voltage power supplies, motors, etc.,
electronic parts may not work properly due to the influence ofelectrical noise, and accurate measuring may not be possible.
Do not install in a place subject to magnetic fields.
Due to the influence of magnetism, electronic parts may not work
properly and accurate measuring may not be possible. The meter
installation space should be 0.2 Tesla (2000 Gauss) or less.
Do not install the meter in a place that is constantly
submerged in water.
Do not install in locations subject to oil (kerosene, fuel oil,etc.) or where corrosive gas may affect device.

When performing pipe welding, be sure to remove themeter.
The high temperature during welding may damage the meter.
Prepare a designated straight pipe section on each of theupstream and downstream sides of the meter.
Accurate weighing may not be possible due to the influence of
curved pipes or valves.
Impeller type straight pipe section
Meter TypeUpstream net
Downstream net
Small diameterX 3 times diameter
X 1time diameter(screw type)
Large diameter
X 5times diameterX 3 times diameter(flange type)
If foreign matter may be mixed in the fluid, install a strainer on
the upstream side of the meter (at a position where the diameteris 5 times or more).
Before installing the meter, be sure to pass water to clean
the inside of the pipe.
Foreign matter such as dust in the water supply pipe may damage
the measuring unit or impede the rotation of the impeller, which
may prevent accurate measuring.
When running water in the pipe, slowly open the watervalve.
If you open it too quickly, a water hammer may occur and may
damage the meter.
When installing, do not hit the meter body with a hammeretc.
The impact may cause the powder coating film to peel off.
Do not apply force to the output cable.
The cable may break. (Electronic water meter/pulse water meter)
Do not shorten the output cable.
Doing so may damage the device or drain the built-in battery.
(Electronic water meter/battery electromagnetic water meter)
Do not use the meter as a scaffold or place heavy objects onit.
It may cause damage to the unit.

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Azbil Kimmon Co., Ltd.
Do not sling on the upper flange of the unit.
It may cause damage to the unit.

Tighten the union nut within the tightening torque range
below.
Union nut tightening torque (reference)
DiameterTightening torque13
6~10N.M20
14~22N.M
25
17~27N.M3025~35N.M
40
40~50N.M

About insurance coverage
The warranty period is one year starting the date of delivery ofthe device.

Exemption of responsibility in case of· Breakdown caused by force majeure such as disaster· Breakdown caused by inappropriate handling by the user
· Failure caused by remodeling / repair by individual who are not part ofour company· Secondary induction faults and obstacles caused by failures of delivered
products· Failure caused by anything unrelated to the delivered product

When installing the water meter with a flange connection,tighten all nuts evenly.
Water leakage can occur if the nuts are tightened unevenly.
Number of bolt holes
Diameter(mm)Bolt holeN
φdClean
JIS10K
water50
41965419 (oval）
75
4819100
4819

Usage caution
Attention
Select a meter within the proper flow rate range andmaximum monthly usage.
Diameter TypeAppropriateMaximum(mm)flow ratemonthly33(m /h)usage (m )Tangential
13
KKDA(L)
0.1 – 1.0100
flow
NKDA(L)20
0.2 – 1.6
170
impeller
EKDA(L)25
0.23 – 2.5
260
typeGKDA(L)30
0.4 – 4.0420
40
0.5 – 4.0
420
Axial flow
40NKDS
0.4 – 6.5700
impeller
EKDS
50
0.4 – 6.5700
typeGKDS50NFDW(T)
1.25 – 17.0
2,600
EFDW(T)65
2.0 – 24.0
3,300
GFDW(T)
NKDW
75
2.5 – 27.5
4,100
EKDW
100
4.0 – 44.0
6,600

Do not use the meter if the expiration date set by yourcountry has been exceeded.
Do not run warm water in the water meter.
Hot water above 30°C may damage the inside of the meter.

Disposal precautions
Depending on your country’s law, when disposing of thedevice, treat it as an industrial waste.
Electromagnetic water meters are equipped with lithium batteries.

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Back of lid

Meter display
Value (100L)

Value (1 m³ or more)
Model approval
number and yearof manufacture

Impression of conformity
Expiration date certificate
sticker

H: Installation
position (horizontal)

Company name and model
notation sticker (standardspecifications only)
Azbil Kimmon
Model NKDA

Value (10L)

Designated manufacturer markRegistered trademark

Pilot
Value (1L)Q3 fixed maximum flow
R=100 light volume fan (Q3/Q1)

Serial Number
Pilot rotation direction

Pulse transmission type water meter (G series)
Systemized measuring instrument symbol

Pulse output rate (1m³/P) fixed

Pulse signal system

How to install the transmitter
1) Slide the claw of the transmitter until it clicks.
2) While pressing the cord retainer lightly inside, attach it to the adapter. (50-100 mm type only)3) Connect an electronic counter, centralized verification board, etc■Target device type: GKDA/GKDL type GKDS typeWhite line/Black line
No polarity

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■Target device type: GFDW/GFDT typeWhite line/Black lineNo polarity【Please refrain from doing the following!】* Do not pull the cord with the transmitter attached.
* Do not carry the meter by grasping the transmitter cord.
* If excessive force is applied, the transmitter may come off.

Pulse input guidelines
If you want to check only the transmission and reception of pulse signals when water is not flowing through the meter, you can forcibly turn ON/OFF thetransmitter following the procedure below.
[When the magnet surface is S pole][When the magnet surface is N pole]

Stroke distance: 3 cm
or more*Connection position: Topright side of transmitter(m³ side)

S

Connection position:
Transmitter top right end(cable side)◆ Please use a magnet at hand.
◆ Please operate the magnet slowly.
◆ Raising and lowering quickly may cause insufficientpulse width chattering.
* Stroke distance of 3 cm or more is a guide.
Please raise and lower with sufficient margin.

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