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]
TEL : [phone] FAX : [phone]
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TEL : [phone] FAX : [phone]
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.