Impulse SA50-K User manual

30180219-SA-AICHI

 This Document specifies environments and conditions for assuring the performance of the
following products.
• Electromagnetic Water Meter SA (hereinafter SA)
• Remote Display: Data Transmitter MX35-2 (hereinafter MX35)
Receiver SR-4DP3AW/ SR-4DP4BW (hereinafter SR-4DP)
• Pulse Transmitter MX39-1 (hereinafter MX39)
Aichi Product Type & Description are indicated below.
SA - Display Only
Nominal Diameter
( mm )
Model
Description
50
SA50-K
50 mm - Display Only
65
SA65-K
65 mm - Display Only
75 ( 80 )
SA75-K
75 mm ( 80 mm ) - Display Only
100
SA100-K
100 mm - Display Only
125
SA125-K
125 mm - Display Only
150
SA150-K
150 mm - Display Only
200
SA200-K
200 mm - Display Only
SA & MX35 & SR-4DP - Remote Version
Nominal Diameter
( mm )
Model
Description
50
SA50-K
50 mm - Remote Version
( 100 L/P for CH1, 1000 L/P for CH2)
65
SA65-K
65 mm - Remote Version
( 100 L/P for CH1, 1000 L/P for CH2)
75 ( 80 )
SA75-K
75 mm ( 80 mm ) - Remote Version
( 100 L/P for CH1, 1000 L/P for CH2)
100
SA100-K
100 mm - Remote Version
( 100 L/P for CH1, 1000 L/P for CH2)
125
SA125-K
125 mm - Remote Version
(1000 L/P for CH1, 10000 L/P for CH2)
150
SA150-K
150 mm - Remote Version
( 1000 L/P for CH1, 10000 L/P for CH2)
200
SA200-K
200 mm - Remote Version
( 1000 L/P for CH1, 10000 L/P for CH2)

SA&MX39 - Pulser Version
Nominal Diameter
( mm )
Model
Description
50
SA50-K
50 mm - Pulser Version ( 100 L/P)
65
SA65-K
65 mm - Pulser Version ( 100 L/P)
75 ( 80 )
SA75-K
75 mm ( 80 mm ) - Pulser Version ( 100 L/P)
100
SA100-K
100 mm - Pulser Version ( 100 L/P)
125
SA125-K
125 mm - Pulser Version ( 1000 L/P)
150
SA150-K
150 mm - Pulser Version ( 1000 L/P)
200
SA200-K
200 mm - Pulser Version( 1000 L/P)
 Please confirm if the installation kit (threaded rods, nuts, spacers) is required when ordering.
* For the installation kit, there are two versions, one is the version for JIS10K flange
connection and the other is the version for JWWA flange connection.
 When each requirement applies to all of SA, MX35, SR-4DP and MX39, it shall be
described as “all products”.
This document specifies the handling requirements (environments, conditions, notice of operation
and installation, etc.) for assuring the performance of products (SA, MX35, SR-4DP, MX39) that
are specified in the Product Specifications. Before you use these products, read all operating
instructions.
Installation, connection and servicing must be carried out by personnel only who have obtained
proper and reasonable ability by receiving training for doing so.
Also, save this manual for future reference.

SAFETY INSTRUCTIONS
WARNING indicates a hazardous situation which, if not
avoided, could result in death or serious injury.
Caution indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
NOTICE is used to address practices not related to physical
injury.
Don’t step
No open flames
Don’t disassemble
Don’t touch with wet hands
Warning
Caution
NOTICE

<Contents>
Page
1. Terminology of Each Part·································P.1
1-1. SA·······················································P.1
1-2. MX35···················································P.2
1-3. SR-4DP·················································P.2
1-4. MX39···················································P.3
2. Working Conditions ·······································P.3
2-1. SA·······················································P.3
2-2. MX35···················································P.4
2-3. SR-4DP·················································P.4
2-4. MX39···················································P.4
3. Transportation ··············································P.4
4. Contents of Package ·······································P.4
5. Storage·······················································P. 5
6. Installation ··················································P.6
6-1. Notes on Handling····································P.6
6-2. Installation Environments ···························P. 7
6-3. Installation Work······································P. 9
6-3-1. SA··················································P.9
6-3-1-1. Piping Conditions ··························P. 9
6-3-1-2. Piping and Installation ·····················P.12
6-3-2. MX35, SR-4DP ··································P.15
6-3-2-1. Notes on Work ······························P.15
6-3-2-2. Notes on Wiring ····························P.15
6-3-2-3. Mounting for SR-4DP and connecting
SR-4DP with MX35························P.16
6-3-3. MX39··············································P.17
6-3-3-1. Notes on Work ······························P.17
6-3-3-2. Notes on Wiring ····························P.17
7. Display Information ·······································P.18
8. Maintenance ················································P.22
9. Disposal ·····················································P. 23
10. Others ······················································P. 23
11. Warranty Policy···········································P. 24

1
1. Terminology of Each Part
1-1. SA
50mm
Display (50mm)
Lid
Outer Case
Flow Direction
Cable of MX35 or MX39
MX35 or MX39
Display
Converter Case
Tube
Electrode
Measuring Tube with Lining
Gasket
Accumulated Volume (1m3 or more)
No Water Warning Indicator
Low Battery Alarm Indicator
Reverse Flow Indicator
Flow Rate
Serial No.
Manufacture date
Unit of Accumulated Volume
(less than1m3)
Unit of Accumulated Volume (m3)
Measuring Range
Nominal diameter

2
1-2. MX35
1-3. SR-4DP
Display (50 - 75mm)
Cable
Flow Rate
Unit of Accumulated Volume
Accumulated Volume
( 1m3 or more )
Accumulated Volume
( less than 1m3 )
Decimal Point
Display
Terminal Block Lid
Unit of Flow Rate (L/s)

3
1-4. MX39
2. Working Conditions
2-1. SA
(1) Measured fluid
Water quality: Potable water
Measured fluid must not contain any substance that damages SA or affects
the operation of SA. It must not contain bubbles, either.
Conductivity: Min. 5 mS/m (50 S/cm)
(2) Environmental resistance
Working ambient temperature: -10 C to +55 C (+14 °F to +131 °F)
Storage ambient temperature: -15 C to +60 C (+5 °F to +140 °F)
Fluid temperature: 0.1 C to +30 C (+32.18 °F to +86 °F) * Freezing must be avoided.
(3) Maximum permissible working pressure
Nominal Diameter
( mm )
50
65
80
100
125
150
200
Maximum permissible
working pressure
( MPa )
2
1
( psi )
290
145
(4) Piping
Front straight pipe: 5D or more, Rear straight pipe: 2D or more
(D: Pipe nominal diameter)
Other conditions shall be according to 6-3-1-1. Piping Conditions
(5) Pressure loss
0.063 [ MPa ] (9.135 [ psi ] ) less at flow rate Qmax [ m3/h ] / [ gpm ]
(6) Waterproof
IP68 ( SA can be used continuously at the water depth of 1 m. )
Cable

4
2-2. MX35
(1) Environmental resistance
Working ambient temperature: -10 C to +55 C ( +14 °F to +131 °F )
Storage ambient temperature：-15 C to +60 C ( + 5 °F to +140 °F )
(2) Waterproof
IP68 ( MX35 can be used continuously at the water depth of 1 m. )
2-3. SR-4DP
(1) Environmental resistance
Working ambient temperature: -10 C to +55 C (+14 °F to +131 °F)
Storage ambient temperature: -15 C to +60 C (+5 °F to +140 °F)
(2) Waterproof
IP63
2-4. MX39
(1) Environmental resistance
Working ambient temperature：-10 C to +55 C (+14 °F to +131 °F)
Storage ambient temperature：-15 C to +60 C (+5 °F to +140 °F)
(2) Water proof
IP68 (MX39 can be used continuously at the water depth of 1 m.)
3. Transportation
This chapter describes how to transport SA, MX35, MX39 and SR-4DP.
For the transportation for SA & SR-4DP, each of them must be shipped as "Dangerous Goods
UN3091 (Class9)" because each of SA & SR-4DP incorporate lithium batteries exceeding the
lithium content 2 gram, prompting special transportation guidelines regulated by United
Nations.
4. Contents of Package
This chapter describes how to check the products when receiving them.
Checking of specifications and external appearance (all products)
Prior to installation work, check whether the delivered product is the required model or not
and for any abnormalities including damage and deformation caused by vibration or shocks
during the transportation.
Notice
Transportation on product containing lithium batteries (all products)
Take care to ship the products in compliance with the latest requirements of the local
and international regulations regarding transportation of products containing lithium
batteries.

5
5. Storage
This chapter describes how to store SA, MX35, MX39 and SR-4DP.
Notice
･Notes on storage condition and environment (all products)
Transport and store the products in an appropriate container until installation work is
carried out.
Select a storage place having good ventilation avoiding rainwater and direct sunlight.
Furthermore, do not place combustibles, flammable substances or heating elements around
the products.
* Refer to the storage ambient temperature of “2-1. SA (2) Environmental resistance,”“2-
2. MX35 (1) Environmental resistance,”“2-3.SR-4DP (1) Environmental resistance”and
“2-4. MX39 (1) Environmental resistance”in 2. Working Conditions.

6
6. Installation
This chapter describes how to install SA, MX35, MX39 and SR-4DP.
Make sure that working conditions are not deviated.
6-1. Notes on Handling
･Wear safety shoes (SA)
Wear safety shoes to prevent injury caused by dropping SA on your foot.
Notice
･Prohibition of drop (all products)
Do not drop the products, or do not apply a strong shock to the products. It may be
damaged.
･Do not grab Tube and Converter Case (SA)
Hold an Outer Case when carrying SA. Grabbing the Tube and the Converter Case
may damage the Tube part and result in the inability of measurement.
･Do not hold Cables (SA)
Do not carry SA holding the Cables when MX35 or MX39 is mounted on SA. This
may cause the damage to MX35 or MX39. Also the drop of SA caused by the
damage to the mounting part may cause the inability of measurement.
･Protection of Electrodes and Lining (SA)
Carry SA taking care not to impair the Electrode and/or the Lining. If they were
damaged, its performance and durability are affected. Be sure to avoid lifting SA
with a rod or a wire passed through the Measuring Tube in particular.
Lifting
Caution

7
6-2. Installation Environments
Notice
･Prohibition of installation at a place affected by strong electromagnetic
field (all products)
Do not install the products at the following places, because the accuracy and
operation of the products may be affected by the strong electromagnetic field that
is generated:
(1) Near a power line or a transformer
* Install the products 2 m or more away from it.
(2) Near an electric pump or an electric motor
* Install the products 2 m or more away from it.
(3) Immediately below high-voltage transmission lines
(4) In the vicinity of other electromagnetic flow meter or other equipment that
generates magnetic field
･Prohibition of installation at a place where a stray current is flowing
(SA)
The accuracy and operation of SA may be affected if installed at a place where
what is called a stray current like an electrolytic corrosion current or a leakage
current from a submersible pump is flowing in a fluid. If influence by the stray
current is observed, work it out with a three-item earth kit (optional).
･Notes on ambient temperature (all products)
Install and use the products in an environment within the specified range of the
ambient temperature. Installation out of the specified range of the ambient
temperature may affect the performance and durability of the products.
* Refer to the storage ambient temperature of “2-1. SA (2) Environmental
resistance,” “2-2. MX35 (1) Environmental resistance,” “2-3. SR-4DP (1)
Environmental resistance” and “2-4. MX39 (1) Environmental resistance” in 2.
Working Conditions.
･Prohibition of direct sunlight (all products)
When installing the products outdoors, provide shade to prevent exposure to direct
sunlight. Otherwise, high temperature may damage electronic parts and cause the
inability of measurement.
<In the case of SA>
Even installing it indoors, keep the Lid closed except when checking the Display
in order to protect the LCD of the Display.
<In the case of SR-4DP >
Install it inside a protection box to protect it from direct sunlight, wind and rain.
･Prohibition of high temperature environment (SA, SR-4DP and MX39)
Avoid a high average temperature environment 20 C or more (68 °F or more) because
it may shorten the battery life.
* Ambient temperature shall be less than 55 C (131 °F) and average ambient
temperature shall not exceed 20 C (68 °F).

8
･Prohibition of oil adhesion (all products)
Avoid using the products at a place affected by soot, oil and other liquids. Otherwise, failures
or malfunctions may be caused to occur.
･Prohibition of continuous vibration (all products)
Install the products at a place having no continuous vibration.
Vibration may damage electronic parts or cause a connection failure, which may lead to the
inability of measurement.
･Notes on underwater installation (SA, MX35 and MX39)
Do not install the meter at a depth of 1 meter or more under the water.
* Refer to “2-1. SA (6) Waterproof,” “2-2. MX35 (2) Waterproof” and “2-4. MX39 (2)
Waterproof” of 2. Working Conditions.
･Notes on direct embedding (SA, MX35 and MX39)
When directly embedding the products underground, select an environment free from weight
and vibration.
･Prohibition of excessive pressure to a fluid (SA)
Do not apply excessive pressure that exceeds the rating.
Excessive pressure may break the Measuring Pipe and thereby may cause fluid leakage,
breakdown and the deterioration of performance.
* Refer to “2-1. SA (3) Maximum working pressure” of 2. Working Conditions.
Notice
･Prohibition of corrosive gas environment (all products)
Do not use or store the product in the place where corrosive gases or liquid (sulfur
dioxide, hydrogen sulfide, nitrogen oxide, chlorine, ammonia, ozone, ethylene
compounds, acids, sea water, salt water, etc.) exist.
Also, when directly embedding SA in earth including above corrosive gas and liquid, connect
sacrificial anode such as zinc with SA electrically and embed sacrificial anode in earth in order to
prevent corrosion.
･Prohibition of contamination of foreign substances into a fluid (SA)
Do not cause a fluid contaminated with foreign substances (solid substances
including sand, stones, iron powder, and rust) to flow because the Lining may be
damaged.
Furthermore, accurate measurement may not be achieved if the Electrodes or the
Earth Ring is covered by non-conductive substances of fats and oils, etc. When a
fluid is contaminated, therefore, the periodical cleaning and maintenance of the
products are required.

9
･Provision of the conductivity of a fluid (SA)
SA performs measurement using the conductivity of a fluid. SA becomes incapable of measuring
a fluid, when using a fluid having the conductivity lower than the specified conductivity.
* Refer to “2-1. SA (1) Measured fluid Conductivity” of 2. Working Conditions.
･Provision of fluid temperature (SA)
Measure a fluid at a temperature within the specified range. A fluid temperature out of the range
may affect its performance and durability.
* Refer to “2-1. SA (2) Environmental resistance Fluid temperature” of 2. Working Conditions.
･Use of fluids other than potable water is not allowed (SA)
Avoid using fluids (chemicals, sea water, etc.) other than the potable water and not containing
any substance that damages SA or affects the operation of SA.
Avoid using fluids not containing bubbles, either.
･Prohibition of submergence and dew condensation (SR-4DP )
Installation under the environment of submergence is prohibited. Installation under the
environment of high temperature and high humidity that causes dew condensation is prohibited.
* Refer to “2-3. SR-4DP (2) Waterproof” of 2. Working Conditions.
6-3. Installation Work
6-3-1. SA
6-3-1-1. Piping Conditions
･Pipe must always be filled completely with the flowing fluid.
When the pump stops working in leakage condition of Check Valve, the air ingress may affect the meter
performance.
Notice
･Notes on piping
Arrange the piping observing the following notes in such a way that air entry and
eccentric flow can be minimized to satisfy accuracy: (D: Pipe nominal diameter)
Raise discharge opening. (h)
Mount the meter in the upward flow
direction at a vertical piping part.
h > 0
5D or more
2D or more
Bad example
Air accumulated

10
･No air must be sucked in.
Consider suction mouth position
･No solid substances must precipitate.
Mount SA in the upward flow direction at a vertical piping part.
Mount Blind Flange for cleaning.
･Straight section of the pipe must be provided.
･A fluid (chlorine etc.) of different water quality must be mixed at downstream
side of meter.
Check Valve
Pump
Suction Mouth
Precipitation
Blind Flange
When fully opened by various valves
5D or more 2D or more
Applicable to various control
valve including ball valve and
butterfly valve.
10D or more
In the case of confluence
50～100mm：10D or more
125～200mm：20D or more
5D or more
Install various control valves at
downstream side as much as possible.
2D or more
When enlarged pipe is used for
upstream pipe: 10D or more
10D or more
Bad example

11
Mixture of fluid of different water quality at upstream side makes conductivity unequal and causes
malfunction of meter.
It also causes corrosion.
･Preparation of mounting work clearance
Provide clearance for mounting work around SA. Provide clearance (0.3 m or more from the
pipe edge to floor) for turning wrench, particularly at the lower side where nuts are hard to
fasten.
･Avoid pulsation flow
Select a place having fewer pulsation flows. The pulsation flows may hinder accurate
measurement.
･Piping for making it easy to carry out maintenance work
(1) Preparation of maintenance space
Install the products at a place where workers can easily enter, considering maintenance work,
inspection, reading of Display, and the easiness of changing the setting.
(2) Installation of gate valve, expansion pipe, and bypass
Install a gate valve, an expansion pipe, and a bypass for making it easy to mount and remove
SA.
(3) Preparation of cleaning aperture
Provide sufficient space for cleaning (e.g. Blind Flange) so that the internal pipes can be
cleaned easily.
6-3-1-2. Piping and Installation
Good example
Injection of chlorine
Bad example
Injection of chlorine
Notice
･Execution of pipe cleaning
Clean the pipes before installation. When the pipes are used without cleaning, SA is
adversely affected by foreign substances, fats and oils inside the pipes often seen in
newly installed pipes.
Typically, this issue may occur when the new pipes are installed.
Notice
･Setting of Flow Direction
Mount SA in such a position that the Flow Direction of a fluid corresponds to the
direction of an arrow marked on the case.

12
・Notes when counterpart pipe is of a non-metallic material
When a counterpart pipe is of a non-metallic material (polyvinyl chloride etc.), take care not to
fasten the nuts too tightly, because if the nuts are fastened too tightly, the nuts deforms the
flange of the counterpart pipe and causes fluid leakage.
・Check of Gasket displacement
Visually check for the displacement of a Gasket after fastening the nuts temporarily.
・Do not apply stress
SA is not designed so as to withstand external load. To prevent the damage to SA, do not
install the pipe that applies the stress to SA.
Observe the following notes so as not to apply stress to SA in particular:
(1) Notes of pipe inclination and eccentricity
Make sure that neither inclination nor eccentricity of a counterpart pipe exists before
mounting SA.
(2) Attachment of pipe support brackets
Fix pipes by attaching brackets for supporting the pipes to the counterpart pipes at both
ends to which SA is mounted.
･Notes on piping and mounting work
NEVER correct the inclination of SA holding the Converter Case or NEVER correct
displacement by hitting SA after fastening the nuts. Otherwise, SA may be damaged,
accurate measurement may not be achieved or measurement may become impossible.
Loosen the bolts and start again from [4] to correct the inclination and displacement of SA.
And do not step on SA, because injury may be caused in the case of falling or SA may be
Inclination
Bad example
Bad example
Good example
Eccentricity

13
broken.
･Air Bleeding
If there is a risk of the air ingress into water, air bleeding must be done.
･Provision of mounting position
There is no restriction on the mounting position (horizontal, vertical or inclined), but avoid
such mounting position that the Electrodes come on top (See Fig. below.). When air is mixed,
malfunction may occur.
Bad example
Electrode
Mounting position

14
[Installing and piping method]
Don’t let water flow through the pipe.
[1]
Insert the spacers in the lower two threaded rods
and fix threaded rods to the flanges.
*Threaded rods, nuts and spacers are the
installation kit.
[2]
Place SA on the spacers and set it in the desired
position, taking care not to subject it to damage.
[3]
Fix the upper threaded rods to the flanges and
slightly tighten all bolts.
[4]
Make sure that Gasket is stuck on each of meter
side. Make sure that the meter pipe center is not
dis-placed and the Display is not askew.
*Gasket is not necessary for meter installation
because Gasket is stuck on each of meter side.
[5]
After you check the displacement of the meter pipe
center, tighten the nuts diagonally in the order
shown by the arrows in the figure below.
[6]
Tighten the nuts to squeeze the Gasket until the
housing and flange come in contact with each
other.
Nominal Diameter
( mm )
50
65
80
100
125
150
200
Tightening torque
( N･m )
16 ～ 32
28 ～ 56
20 ～ 40
25 ～ 50
46 ～ 92
48 ～ 96
41 ～ 82