IWAKI PUMPS EH-B10 User manual

Read this manual before use of product
IWAKI
Electromagnetic Metering Pump
EH-W Type
Instruction Manual
T315-2 '03/01
( )Country codes
IWAKI CO.,LTD. 6-6 Kanda-Sudacho 2-chome Chiyoda-ku Tokyo 101-8558 Japan
TEL:[phone] FAX:[phone](http://www.iwakipumps.jp)
U.S.A. : IWAKI WALCHEM Corporation
Australia : IWAKI Pumps Australia Pty. Ltd.
Singapore : IWAKI Singapore Pte. Ltd.
Indonesia : IWAKI Singapore (Indonesia Branch)
Malaysia : IWAKIm Sdn. Bhd.
Taiwan : IWAKI Pumps Taiwan Co., Ltd.
Thailand : IWAKI (Thailand) Co.,Ltd.
Hong Kong : IWAKI Pumps Co., Ltd.
China :
GFTZ IWAKI Engineering & Trading Co., Ltd.
China : IWAKI Pumps Co., Ltd. (Beijing office)
China : IWAKI Pumps (Shanghai) Co., Ltd.
Philippines : IWAKI Chemical Pumps Philippines, Inc.
Korea : IWAKI Korea Co.,Ltd.
TEL : [phone] FAX : [phone]
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Germany : IWAKI EUROPE GmbH
Italy : IWAKI Italia S.R.L.
Denmark : IWAKI Pumper A/S
Sweden : IWAKI Sverige AB
Finland : IWAKI Suomi Oy
Norway : IWAKI Norge AS
France : IWAKI France S.A.
U.K. : IWAKI PUMPS (UK) LTD.
Switzerland: IWAKI (Schweiz) AG
Austria : IWAKI (Austria) GmbH
Holland : IWAKI Holland B.V.
Spain : IWAKI Iberica Pumps, S.A.
Belgium : IWAKI Belgium n.v.
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Thank you for having selected of Iwaki's EH/W type electromagnetic metering
pump.
This instruction manual, which is divided into 5 sections, namely "Safety Section,"
"Outline Section," "Installation Section," "Operation Section" and "Maintenance
Section," deals with the correct handling and operation procedures for the pump.
You are requested to read this manual prior to using the pump, to ensure safe and
long operation. If external signals are to be input into the pump, please consult us in
advance.
* Please make sure the end user gets a copy of this manual.
Contents
IMPORTANT INSTRUCTION ······················································· 1
Safety Section ········································································ 2~4
OUTLINE OF PRODUCT ······················································ 5~13
1. Unpacking and Inspection ························ 6
2. Operation Principle ··································· 6
3. Identification Codes ······························· 7,8
4. Main Features ·········································· 9
5. Specifications ···································· 10,11
6. Description of Parts ··························· 12,13
INSTALLATION ····································································· 14~25
1. Before Use ············································· 15
2. Notes on Operation ·························· 15~17
3. Installation, Piping, and Wiring ········· 18~25
PUMP OPERATION ····························································· 26~44
1. Operation ········································· 27~32
2. Methods of Pump Operation ············ 33~44
MAINTENANCE ···································································· 45~57
1. Causes of Trouble and
Troubleshooting ······································ 46
2. Maintenance and Inspection ·················· 47
3. Disassemble and Reassembly ········· 48~51
4. Accessories ············································ 52
5. Names of Parts and
External Dimensions ························ 53~57
■Application of Warranty and Repair Service ·················· 58
This instruction manual should be kept on hand by the end user for quick reference. It is
recommended that each user, after reading the instruction manual thoroughly, place it in a
position close to the pump system and where it may be easily accessed by any user at
any time whenever necessary.
Concerning any points you wish to know more about, contact Iwaki, an Iwaki branch office,
or an Iwaki distributor.

- 1 -
Caution
Types of Symbols
Warning Nonobservance or misapplication of the
contents of the "Warning" section could
lead to a serious accident, including death
or injury.
Nonobservance or misapplication of the
contents of the "Caution" section could
lead to a serious physical injury to the user
or serious damage to the product.
Indicates that "Warning" or "Caution" must be exercised. Inside this
triangle, a concrete and practical image provided as a warning or caution
message is depicted.
Indicates a prohibited action or procedure. Inside or near this circle, a
concrete and practical image of the activity to be avoided is depicted.
Indicates an important action or procedure which must be performed or
carried out without fail. Failure to follow the instructions herein can lead
to malfunction or damage to the pump.
For the Safe and Correct Handling of the Pump
• Read the "Safety Instructions" sections carefully to prevent accidents involving your customers or
other personnel and to avoid damage or loss of other assets. Always follow the instructions and
advice found in these sections.
• Observe and abide by the instructions described in this manual. These instructions are very
important for protecting pump users from dangerous conditions and situations related with the
use of the pump system.
• The symbols relate to the following meanings described below:
Important Instruction

- 2 -
WARNING
• Turn off the power supply.
Working without disconnecting the power supply may cause an electrical shock.
Before engaging upon any working procedures involving the pump, make sure to
turn the power supply switch off and to stop the pump and other related devices.
• Terminate operation!
When you detect or become aware of a dangerous sign or abnormal condition
during operation, terminate the operation immediately and start it from the beginning
again.
• For specified application only.
The use of a pump in any application other than those clearly specified may result in
injury or damage to the pump. Use the pump strictly in accordance with the pump
specifications and application range.
• No remodeling!
Never remodel a pump. Otherwise, a serious accident may result. Iwaki will not be
responsible for any accident or damage of any kind which is caused by the user
remodeling the pump without first obtaining permission or instructions from Iwaki.
• Wear protectors.
If you touch or come in contact with any type of hazardous chemical liquid, including
but not limited to chemicals, you may experience a serious injury. Wear protective
gear (protective mask, gloves, etc.) during the pump operation.
• Operating site must be free of water and humidity
The pump is not designed to be water-proof or dust-proof. The use of the pump in
places where water splashes or humidity is high may result in an electrical shock or
short circuit.
CAUTION
• Qualified operators only!
The pump operator and pump operation supervisor must not allow any operators
who have little or no knowledge of the pump to run operate the pump. Pump
operators must have a sound knowledge of the pump and its operation.
• Specified power only.
Do not operate the pump on voltage which is not specified on the nameplate.
Failure to do so may result in damage or fire. Only the specified power level is to be
applied.
Safety Section
Electrical Shock
Prohibited
No Remodeling
Prohibited
Wear protective
gear
Prohibited
Prohibited

- 3 -
CAUTION
• Do not run the pump dry.
Do not run the pump dry (without liquid inside the pump). Heat generated as a
result of abrasion between elements inside the pump during operation without liquid
may damage the inside of the pump.
• Do not wet or dampen!
If an electric part or wiring gets wet with the liquid spilled over accidentally, a fire or
electrical shock may be caused. Install the system in a place free from liquid
spillage or leakage.
• Ventilate!
Poisoning may result during an operation which involves toxic or odorous liquid.
Ventilate the operating site sufficiently.
• Spill-out accident!
Protective measures should be taken against any accidental spill-out or leakage of
the operating liquid as a result of unexpected damage on the pump or the related
piping.
• Damaged pump
Never operate a damaged pump. A damaged pump may cause leakage or
electrical shock.
• Do not damage or change power cable!
Do not scratch, damage, process, or pull the power cable forcibly. An extra load
onto the cable, such as heating the cable or placing something heavy on the cable,
may damage the cable and finally cause a fire or an electrical shock.
• Arrange grounding!
Do not operate the pump without connecting the grounding wire. Otherwise, an
electrical shock may result. Make sure the grounding wire is connected with the
grounding terminal.
• Install an earth leakage breaker (option)!
The operation of a pump without using an earth leakage breaker may cause an
electrical shock. Please purchase an optional leakage breaker and install in the
system.
• Handling of power cable
Use of a defective or damaged power cable may result in a fire or electrical shock.
Handle the power cable carefully.
Prohibited
Electrical Shock
Caution
Caution
Caution
Grounding
Safety Section
Do not wet
or dampen
Prohibited
Electrical Shock

- 4 -
Safety Section
CAUTION
• Follow the instruction manual
Replace the consumable parts by following the descriptions in the instruction manual.
Do not disassemble any part of the pump if the disassembling procedure for the part
in question is not included in the instruction manual.
• Limited operating site and storage
Do not install or store the pump in the following places:
* Places where a flammable gas or material is used or stored.
* Places where the ambient temperature is extremely high (40°C or higher) or
extremely low (0°C or lower).
• Disposal of used pump
Disposal of used or damaged pumps must be done in accordance
with the relevant local laws and regulations. (Consult a licensed
industrial waste products disposing company.)
Prohibited

- 5 -
OUTLINE OF PRODUCT
1. Unpacking and Inspection ................. 6
2. Operation Principle ............................ 6
3. Identification Codes ........................... 7
4. Main Features ................................... 9
5. Specifications .................................. 10
6. Description of Parts ......................... 12

- 6 -
After unpacking the pump, check the following
points to ascertain that the product is exactly as you
ordered. If you find anything wrong, please get in
touch with your dealer.
zDo the model, discharge pressure, voltage, etc.,
shown on the nameplate represent what you
ordered?
xIs the following accessory included in the
package?
• Key protector. . . . . . . . . . . . . . . . . . . . . . . . . . . 1
* Install the key protector in the control unit.
cHas the pump been damaged in transit? Are the
bolts and nuts loose?
1. Unpacking and Inspection
The Iwaki EH series electromagnetic pump is a
diaphragm metering pump of the 'linear
electromagnetic drive system', which means
electromagnetic force drives the diaphragm directly.
It consists of a pump unit, a drive unit and a control
unit. Reciprocating movement is caused by the
electromagnetic force produced by the pulse current
sent from the control unit, and the force of a spring.
The reciprocating movement is transmitted to the
diaphragm directly connected to a plunger, to
change the capacity of the pump chamber. The
changed capacity and the functioning of the valves
in the pump unit drive the pump.
2. Operation Principle
Iwaki
Metering
Pump
CAPACITY
mR/min
MAX.PRESSURE MPa
STROKE RATE spm
VOLTAGE
MODEL
MFG.No.
IWAKI CO.,LTD.
TOKYO JAPAN
CURRENT A
THERMALLY PROTECTED
POWER CONSUMPTION
1P416987
Discharge
Discharge pressure
Voltage
Power consumption
Electric current
Model
Manufacturing
number
W
V
Key protector
Control unit Pump unit
Stroke length
adjusting dial
Drive unit
(body of pump) Plunger
Diaphragm
Spring

■Pump Body
EH - B 20 VC - 100 P W 1 - PH MM
qwer tyuio!0
qSeries code
wDrive unit type (average of power consumption)
B: 16W C: 24W
eEffective diameter of diaphragm
10: 10mm 15: 15mm 20: 20mm
30: 30mm 35: 35mm
rMaterials of pump unit (liquid-contacting parts)
- 7 -
3. Identification Codes
Parts
Code Pump
Head Valve Ball O ring Gasket Diaphragm
Hastelloy C276
VC
VH
PC
PH
FC
PVC
GFRPP
PVDF
Ceramic
Hastelloy C276
Ceramic
Ceramic
FKM
EPDM
FKM
EPDM
FKM
EPDM
FKM
EPDM
FKM
EPDM
FKM
EPDM
PCTFE
PTFE PTFE
+EPDM
Valve seat
Material code PVC: Transparent vinyl chloride
GFRPP: Glass-fiber reinforced polypropylene
PVDF: Polyvinylidene fluoride
FKM: Fluoroelastmer
EPDM: Ethylene propylene diene methylene
PTFE: Polytetrafluoroethylene
PCTFE: Polychlorotrifluoroethylene
tLine voltage
100: AC 110/115 V 20E: AC 220-240 V
yPower cable type
P: With an attaching plug
No indication: With press-fit terminals (for 220/240V)
uControl unit type
W: Water treatment type
iConnection tube diameter (inner diameter ×outer diameter)
2: φ 4 × φ 6
3: φ 6 × φ 8
5: φ 9 × φ 12
6: φ 10 × φ 12

- 8 -
EHC - 100BPW-PH
q
q
w
e
r
t
y
wert y u
Type of control unit
Line voltage
Power supply cord type
Control function type
Controller unit
model code
Type of drive unit
(power consumption)
EHC
W: Water treatment type
uIndication of special
specifications
01~99: Special specifications
No indication: Standard
specifications
PH: pH control
PH1
PH2
PH2B
OR: ORP control
CD: Conductivity Control
B: For EH-B pump (16W)
C: For EH-C pump (24W)
100: AC110/115V
20E: AC220, 230, 240V
P: With attaching plug
No indication: With press-fit
terminals
oControl function type
* PH: pH type (pH control function, A.T.C: positive thermistor 6.8Ωat 25 ºC)
PH1: pH type (pH control function, A.T.C: Pt1000)
* PH2: pH type (pH control function, A.T.C: Pt100)
PH2B:pH type (pH control function, A.T.C: Pt100 with BNC plug)
OR: ORP type (oxidation-reduction potential control function)
CD: Conductivity type (conductivity control function)
*!0 Special specification code
01~99: None-standard materials, different diameter fitting, etc.
The specifications marked with asterisks are special specifications, while the rest are standard specifications.
■Control Unit
■Points to Note
qDo not detach the control unit unless necessary.
wThe control unit must not be attached to a pump with a different drive unit coad or line voltage code. (Verify with
the name plate.)
Caution
If the control unit is attached to a pump with a different drive unit code or line voltage code, it will cause a problem or
failure of in the electronic circuits of the control unit and/or the drive unit of the pump.

- 9 -
■Control Unit
The pump operation is electronically controlled by the control unit which has a built-in CPU of its own (emphasis is
laid on the facility of controlling operation and functions).
PH model ············The pump stroke rate is controlled in proportion to the pH value measured by the electrode, for
accurate control of pump discharge.
OR model············The pump stroke rate is controlled in proportion to the ORP value measured by the electrode, for
accurate control of pump discharge.
CD model············The pump stroke rate is controlled in proportion to the Conductivity value measured by the senser,
for accurate control of pump discharge.
■Simple operation
As the operating keys of the control unit are used to run the pump and to control the flow rate, system control of the
flow rate can be carried out easily.
■Memory backup function
Due to the memory backup function, set values remain stored even after the power has been turned off. When power is
restored, the pump operates with these set values.
4. Main Features
Pump unit
•Reciprocating movement of the diaphragm
changes the capacity of the pump chamber,
to drive the pump.
Stroke length control unit
•Adjusts or sets the discharge per stroke in the range of 0 to 100%.
Drive unit
•Causes the diaphragm to reciprocate, by means of the
electromagnetic force and the force of the spring in response
to command signals received from the control unit.
Control unit
•Controls pump operation, flow rate and
adjustment, and setting of the stroke rate.

- 10 -
5. Specifications
Note 1: The table shows the results of tests with clear water at the rated voltage and normal temperature.
Note 2: The maximum discharge is the amount under the maximum discharge pressure (stroke length
100%; stroke rate 100%). Under a lower pressure, the discharge is larger than shown in the table.
Note 3: Operating ambient temperature: 0~40°C
Note 4: Liquid temperature: 0~60°C (VC, VH : 0~40°C)
Note 5: Permissible voltage fluctuation: Within ±10% of rating
Note 6: The connection tube size φ 6 × φ 8 is not applicable to PC and PH types.
Note 7: The FC type does not have B15, B30, or C15.
Note 8: The applicable sizes of connection tubes for the FC type are φ 4 × φ 6 for B10, B20, and C20 and
φ
10 ×
φ
12 for C30 and C35.
* Please consult us for special specifications such as slurry liquid handling.
* Please note that for the purpose of improvement, parts which have no effect on specifications and fitting sizes are
subject to change without prior notice.
■Sound level
The sound level of the each type of the pump is 60 dB (A scale) or less at a distance of one meter
Note 6: Permissible voltage fluctuation: Within ±10% of rating
* Please consult us for special specifications such as in the case of handling slurry.
* Please note that for the purpose of improvement, parts which have no effect on specifications and fitting
sizes are subject to change without prior notice.
50/60Hz
EH-B10 38 0.04-0.11 0.98
0 ~360
40 ~100
(0.4~1.0)
16EH-B15 70 0.04-0.19 0.69
EH-B20 105 0.06-0.29 0.39 20 ~100
(0.2~1.0)
EH-B30 230 0.13-0.64 0.20
EH-C15 90 0.05-0.25 0.98
24
EH-C20 130 0.07-0.36 0.69 20 ~100
(0.25~1.25)
EH-C30 270 0.15-0.75 0.34
EH-C35 450 0.25-1.25 0.20
FC/SH Capacity
[ml/min] Capacity [ml/stroke] Max.pressure [MPa] Stroke frequency [spm] Stroke length [%](mm) Average power consumption[W]
EH-B10 38 0.04-0.11 0.98 40 ~100
(0.4~1.0)
EH-C20 120 0.07-0.33 0.69 20 ~100
(0.25~1.25) 24EH-C30 260 0.14-0.72 0.34
EH-C35 410 0.23-1.14 0.20
0 ~360
EH-B20 95 0.05-0.26 0.39 20 ~100
(0.2~1.0)
16
■Pump specifications
VC/VH
PC/PH Capacity [ml/min] Capacity [ml/stroke] Max.pressure [MPa] Stroke frequency [spm] Stroke length [%](mm) Average power consumption[W]

- 11 -
■Specifications of Control Unit
Mode Mode
Change
PH
AUTO
MAN
Code OR
AUTO
MAN
Entering by keys
CD
AUTO
MAN
KAUTO
• SET
• PB
• spm
• Lo
• Hi
KMAN
• spm
0~10mS/cm
Cell Constant 0.80~2.20
Temp.Coefficient:
: -9.99~9.99% / ºC
KAUTO
• SET
• PB
• spm
• Lo
• Hi
KMAN
• spm
-1999~+1999mV
ZERO
4 keys START/STOP , ▲, s, FUNC
By recieving stop signal from outside
4 Digit LCD Measure, Set Value, Error, and others
Green LED
No voltage contact
By recieving stop signal
Synchronized output with pump stroke
Lower than "Low" or higher than "Hi"
Open collector Sink type (Isolated)
Max.voltage DC35V, Min. Current DC2.5mA
KAUTO
• SET
• PB
• spm
• Lo
• Hi
KMAN
• spm
Prameters
Keys
Stop
Display
Stroke
Sensor
Stop
Stop
Synchronized
stroke
Lo/Hi
Within
SET Value
Form
Function
Indication
Input
Output*1
(Select one)
0~14pH
ZERO, SPAN (ATC)
With SET Value
±0.2mS / cm
With SET Value
±20mV
With SET Value
±0.20pH
DC0~1V (0~10mS/cm)
Max. load
10kΩor more
DC0~1V (-1999~1999mV)
Max. load
10kΩor more
DC0~1V (0~14pH)
Max. load
10kΩor more
Record out
0~9.99mS/cm
-9.99~9.99mS/cm
0~360spm
-9.99~9.99mS/cm
-9.99~9.99mS/cm
0~360spm
-1999~+1999mV
-1999~+1999mV
0~360spm
-1999~+1999mV
-1999~+1999mV
0~360spm
0~14pH
-14~14pH
0~360spm
0~14pH
0~14pH
0~360spm
Note: *1 Standard output is set "STOP". Select one output from Table
When select output except STOP, inform with ordering.

- 12 -
6. Description of Parts
MAN
ZERO SPAN
AUTO °C ALM
SET PB
spm
pH
Hi
Lo
START
STOP FUNC
START
STOP FUNC
Unit display
Remains lit while the temperature
display is selected. This display is
not provided on the "OR" model.
Display panel
Set values and error
messages are displayed. ALM display
Remains lit if the measured value
exceeds the upper or lower limit value.
Unit display
Remains lit when stroke rate display is
selected. Flashes if the stroke rate has
reached the upper limit value.
Unit display
Remains lit when the measured
value or parameter is displayed.
Displays "mV" for an OR type
and "mS/cm" for a CD type.
Hi display
Flashes if the measured value exceeds
the upper limit value. Remains lit when
the parameter is displayed.
Lo display
Flashes if the measured value exceeds
the lower limit value. Remains lit when
the parameter is displayed.
Function key
Pressed to determine a set value or
store a value. Also used in multiple-key
operation in combination with another
key for other selection purpose.
PB display
Remains lit when proportional
band value is selected for
parameter display.
Operation mode display
Remains lit when automatic
operation mode (AUTO) is selected.
Flashes during automatic operation.
Operation mode display
Remains lit when manual
operation mode (MAN) is selected.
Flashes during manual operation.
ZERO display
Remains lit when the calibration
set value is selected for
parameter display.
ON lamp
Remains lit while power is supplied.
Flashes in synchronization with the
pump stroke.
SPAN display
Remains lit when the calibration
set value is selected for
parameter display.
START/STOP key
Pressed to start or stop
pump operation.
Shift key
Pressed to move to the next
rightward digit for value setting. Also
used in multiple-key operation in
combination with the function key for
the selection of an operation mode.
SET display
Remains lit when the SET value
is selected for parameter display.
Also remains lit when any other
set value is displayed.
ZERO is not provided on the CD type, which employs CELL instead. SPAN is not provided on the OR type and the CD type. The CD type
employs % instead. For detailed operation procedures for these parameters, refer to the "Operation" section.
"Multiple-key operation" means that the particular key is pressed with another key simultaneously. In this unit, the function key and another key
are pressed simultaneously.
The operation surface of the control unit is covered with protective film for shipment. Remove this film before using the control unit.
UP key
Calls up the set value while a parameter is
displayed. Increases the value of the flashing digit
when a value is to be set. Used also in multiple-
key operation in combination with the function key
for the selection of the display content.
Control unit
Stroke rate adjusting dial
Drivel unit
Pump unit
■Names of Parts
■Control unit

- 13 -
■Basic display patterns
MAN
ZERO SPAN
AUTO °C ALM
SET PB
spm
pH
Hi
Lo
MAN
ZERO SPAN
AUTO °C ALM
SET PB
spm
pH
Hi
Lo
Display pattern Description
MAN
ZERO SPAN
AUTO °C ALM
SET PB
spm
pH
Hi
Lo
MAN
ZERO SPAN
AUTO °C ALM
SET PB
spm
pH
Hi
Lo
MAN
ZERO SPAN
AUTO °C ALM
SET PB
spm
pH
Hi
Lo
MAN
ZERO SPAN
AUTO °C ALM
SET PB
spm
pH
Hi
Lo
AUTO mode operation is under way.
The value may be 0 spm with the pump operation
suspended, depending on the set value and the
measured value.
The pump is in standby condition in MAN
mode.
Under normal conditions, WAIT is displayed while
the pump is in standby condition or the stroke rate
is displayed while the pump is in operation.
The control unit is ready for mode selection.
MAN or AUTO remains flashing. This mode
selection display can be accessed from the WAIT
(standby) display.
Set value is being changed.
The parameter display has been replaced by this
display and the set value is ready to be changed.
The value of the flashing digit can be changed by
pressing the UP key.
Error display
If an attempt has been made to enter a value out of
the setting range as set value, this display flashes
for 5 seconds.
Error display
If the parameter PB has been set at 0.00 or -0.00,
this display flashes for 5 seconds.

- 14 -
INSTALLATION
1. Before Use ........................................15
2. Notes on Operation.......................... 15
3. Installation, Piping, and Wiring ........ 18

- 15 -
Caution
•Turn off the power supply.
Working without disconnecting the power supply may cause an electrical shock. Before engaging upon
any working procedures involving the pump, make sure to turn the power supply switch off and to stop
the pump and other related devices.
•Terminate operation!
When you detect or become aware of a dangerous sign or abnormal condition during operation,
terminate the operation immediately and start it from the beginning again.
•Specified power only.
Do not operate the pump on voltage which is not specified on the nameplate. Failure to do so may
result in damage or fire. Only the specified power level is to be applied.
•Keep from heat or flame.
Do not place any dangerous materials or flammable objects near the pump for the prevention of fire or
accident.
•Damaged pump
Never operate a damaged pump. A damaged pump may cause leakage or electrical shock.
1. Before Use
“Strictly observe the following points.”
Operators and maintenance service staff must read the instruction manual thoroughly
before using the products. Do not operate the pump system unless all of the contents in
the manual are completely understood.
2. Notes on operation
• Dropping the pump or subjecting it to strong impacts
may result in faulty performance. Handle the pump
with care.

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• The pump can be operated outdoors, as the pump
employs a simple water and dust proof structure.
When installing the pump, avoid places exposed to
direct sunlight or direct rain with an ambient
temperature of above 40ºC, or with a relative humidity
of above 85%. Though the pump has a simple
waterproof and dustproof structure, a sheltered location
is recommended.
• Select an installation site convenient for future
maintenance and inspection, and fix the pump on a
level floor so that it is free of vibrations.
• Ventilate!
Poisoning may result during an operation which
involves toxic or odorous liquid. Ventilate the
operating site sufficiently.
• Do not wet or dampen!
If an electric part or wiring gets wet with the liquid
spilled over accidentally, a fire or electrical shock may
be caused. Install the system in a place free from liquid
spillage or leakage.
• Install an earth leakage breaker (option)!
The operation of a pump without using an earth leakage
breaker may cause an electrical shock. Please purchase
an optional leakage breaker and install in the system.
• The control unit can be detached. However, it should
not be detached unless unavoidable. Never use the
detached control unit with the pump models other than
the one delivered.
Prohibited
Caution

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• Arrange grounding!
Do not operate the pump without connecting the
grounding wire. Other wise, an electrical shock may
result. Make sure the grounding wire is connected with
the grounding terminal.
• Limited operating site and storage
Do not install or store the pump in the following places:
* Places where a flammable gas or material is used or
stored.
* Place where the ambient temperature is extremely high
(40ºC or higher) or extremely low (0ºC or lower).
• Cleaning
Wiping the pump body or the nameplate with a cloth
soaked in a solvent such as benzene, thinner or
kerosene may remove or change the color of the
coating. Use a dry cloth or a cloth soaked in water or
neutral detergent.
• If the pump is used for industrial porpose, the electric
power cable of the pump must be installed in the
enclosure which satisfies IP54 or in the atmosphere
corresponding to IP54
Prohibited
Prohibited

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3. Installation, Piping, and Wiring
■Installation
zInstallation
Install the pump at a place where the ambient
temperature does not exceed 40ºC and the relative
humidity does not exceed 85%. (There should be no
dew condensation inside the control unit.) The place
should be convenient for future maintenance and
inspection. A sheltered location is recommended.
xPlace the pump as close to the suction tank as possible
so as to realize flooded suction piping (install the pump
at a lower level than the tank on the suction side).
cFix the pump firmly by means of m5 screws on a level
floor free from splashing liquid.
If the pump is inclined, the discharge may be decreased
or may even reach zero.
vIf the pump is used for a liquid that tends to generate air
bubbles (sodium hypochlorite, hydrazine solution, etc.),
make sure to install it in a cool, dark place away from
direct sunlight. When a tank, etc., is used, flooded
suction piping is required.
Discharge side
Suction side