IWAKI EH-E Manuel utilisateur

IWAKI

Electromagnetic Metering Pump

Instruction Manual

EH-E Type

Read this manual before use of product

IWAKI CO., LTD

6-6 Kanada-sudacho, 2-chome, Chiyoda-ku

Tokyo 101-8558 Japan

Tel: (81) 3 3254 2935 Fax: (81) 3 3252 8892

T308-1 99/2

Thank you for choosing an Iwaki’s EH-E Series metering pump. This instruction manual deals with

the correct installation, operation, maintenance, and troubleshooting procedures for the EH-E model

metering pump. Please read through it carefully to ensure the optimum performance, safety and

service of your pump.

Contents

IMPORTANT INSTRUCTION ------------------------------------------1

Safety Section ------------------------------------------2

1.INTRODUCTION ------------------------------------------5

1.Unpacking ------------------------------------------6

2.Operation Principle ------------------------------------------6

3.Specifications ------------------------------------------7

4.Dimensions ----------------------------------------10

2.INSTALLATION ----------------------------------------14

Before Use ----------------------------------------15

Location ----------------------------------------16

Supply Tubing ----------------------------------------16

Discharge Tubing ----------------------------------------17

Electrical ----------------------------------------17

3.OPERATION ----------------------------------------18

1.Priming ----------------------------------------19

Adjustment ----------------------------------------20

Calibration ----------------------------------------20

External Control

4,1Display/Keypad and Wiring Overview -----------------------------21

4,2 Quick Reference ----------------------------------------22

4,3 Digital Mode ----------------------------------------25

4,4 Analog Mode / STOP Function ---------------------------------------26

4,5 AC Power Interruption ----------------------------------------28

5.MAINTENANCE ----------------------------------------29

Maintenance ----------------------------------------30

Diaphragm Replacement ----------------------------------------30

Valve Replacement ----------------------------------------30

Tubing ----------------------------------------30

Names of Part and Structure ----------------------------------------31

Troubleshooting ----------------------------------------35

1.Troubleshooting ----------------------------------------36

Important Instruction

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.

Warning.

Nonobservance or misapplication of the contents of the

"Warning" section could lead to a serious accident,including

death or injury.

Caution.

Nonobservance or misapplication of the contents of the

"Caution" section could lead to serious physical injury to the

user or serious damage to the product.

Types of Symbols

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.

- 1 -

Safety Section

Warning.



 

 Turn off the power supply

Working without disconnecting the power supply 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．Electrical shock



 

 Terminate operation！

！！

！

When you detect or become aware of a dangerous sign or abnormal condition

during operation , terminate the operation immediately and start 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．Prohibited



 

 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

lwaki ．No remodeling



 

 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．

Wear protective

gear



 

 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. Prohibited

- 2 -

Safety Section

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 and operate the pump . Pump

operators must have a sound knowledge of the pump and its operation．Prohibited



 

 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．Prohibited



 

 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．Prohibited



 

 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 . Do not wet or

dampen



 

 Ventilate！

！！

！

Poisoning may result during an operation which involves, toxic or odorous liquid.

Ventilate the operating site sufficiently．

Caution



 

 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．Caution



 

 Damaged pump

Never operate a damaged pump. A damaged pump may cause leakage or

electrical shock.

Prohibited



 

 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. Caution

- 3 -

Safety Section

Caution.



 

 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

grounding terminal．Grounding



 

 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．Electrical

Shock



 

 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.

Electrical

Shock



 

 Follow the instruction manual

Replace the consumable part 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℃or higher）or

extremely low (0℃or lower)．Prohibited



 

 Disposal of used pump

Disposal of used or damaged pumps must be done in accordance with the

relevant local law and regulations .(Consult a licensed industrial waste products

disposing company.)

- 4 -

1.INTRODUCTION

1. Unpacking -----------------------------6

2. Operation Principle ------------------6

3. Specifications--------------------------7

4. Specifications of Control Unit------9

5. Dimensions---------------------------10

- 5 -

1.Unpacking

After unpacking the goods, 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.

(1)Do the model, voltage, etc., shown on the nameplate

represent what you ordered?

(2)Has the goods been damaged in transit? Are the

bolts and nuts loose?

2.Operation Principle

The EH Series electronic metering pump consists of a

pump unit, a drive unit, and a control unit. The drive

unit is an electromagnetic solenoid. When the

solenoid coil is energized by the control unit the

armature shaft moves forward due to the magnetic

force of the solenoid. The shaft is attached to a PTFE

faced diaphragm which is part of the pump unit. The

diaphragm is forced into the pump head cavity

decreasing volume and increasing pressure which

forces liquid in the pump head out though the

discharge check valves. When the solenoid coil is de-

energized, a spring returns the armature to its starting

position. This action pulls the diaphragm out of the

head cavity increasing volume and decreasing

pressure. Atmospheric pressure then pushes liquid

from the supply tank through the suction check valves

to refill the pump head.

- 6 -

3.Specifications



 

 Pump identification

EH -E30 PC - 23U P E 8 -

①②③④⑤⑥⑦⑧⑨

①Series　name EH Series

②Drive component E: 48 W

③Diaphragm effective diameter 30:30mm 35:35mm 45:45mm 55:55mm

④Material of liquid end

Symbol Pump head

& Fittings

Valve Balls Valve seat &

O-ring(Gasket)

Diaphragm Gasket

VC PVC CE FKM

V6 PVC SUS316 EPDM

PC GFRPP CE FKM

VM M-PVC CE FKM

FC PVDF CE PCTFE(PTFE)

SH SUS316 HC276 SUS316(PTFE)

PTFE

(bonded to EPDM)

PTFE

PVC : Polyvinyl chloride (Transparent)

GFRPP : Glass fiber reinforced polypropylene

M-PVC : Polyvinyl chloride (Machined)

CE : Alumina ceramics

SUS316 : 316 Stainless steel

FKM : Fluoroelastomer

EPDM : Ethylene propylene diene methylene

PTFE : Polytetrafluoroethylene

PVDF : Pplyvinylidenefluoride

HC276 : Hastelloy C276

⑤Voltage symbol

Symbol Voltage Input voltage Frequency

100 AC100V AC 90 ～110V 50-60 Hz

11U AC 110V, 115V AC 90 ～126V 50-60 Hz

20J AC 200V AC 180 ～220V 50-60 Hz

23U AC 230V AC 207 ～253V 50-60 Hz

20E AC 220,230,240V AC 198 ～264V 50-60 Hz

-7-

⑥Power code

P with plug

No symbol without plug

⑦Controller E : E type

⑧Connection

Symbol Applicable hose dia. (ID×OD) Type

4φ8 ×φ13 (mm) VC,V6,PC,VM

5φ9 ×φ12 (mm) VC,V6,PC,VM

6φ10 ×φ12(mm) FC

8φ1/2” ×φ3/8”(inch) VC,V6,PC,VM,FC

9 Rc 1/4” SH

10 NPT 1/4” SH

11 φ10 ×φ16(mm) VC,V6,PC,VM

14 Rc 3/8” SH

15 NPT 3/8” SH

⑨Special configuration

01~99: Special material , special connection port diameter , etc.

 Controller identification

　　　　　　EHC - 100　

　E- ＊＊

＊＊＊＊

＊＊

　①　 ②　 ③④　 ⑤

①Controller name EH

②Voltage symbol

10 0

11 U

20 J

20 E

23 U

AC100V

AC110V,AC115V

AC200V

AC220V,AC230V,AC240V

AC230V

AC 90 ~126V

AC 90 ~ 126V

AC180 ~ 220V

AC198 ~ 264V

AC207 ~ 253V

50-60

③Lead wire P：with plug

No symbol：without plug

④Controller E

⑤Special configuration 0 ~ 99

Points to be noted in handling

1.Do not detach the control unit unless unavoidable.

2.Never use the control unit with pumps having different symbols for driving unit and power source

voltage specified on the control unit. (Check the nameplate.)

Caution

Operation with a pump having different symbols for driving unit and power source voltage other than

those specified may cause failure or trouble in the electronic circuit of the control unit or the driving

unit of the pump.

- 8 -

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