IWAKI PUMPS EJ-B, EJ-BS, EJ-B Asia, EJ-BS Asia Instruction Manual
2013 IWAKI CO., LTD.
Iwaki
Electromagnetic Metering Pump
EJ-B(S) (Asia)
Safety instructions
Overview Installation Operation Maintenance Specication
Instruction manual
Thank you for choosing our product.
Please read through this instruction manual before use.
This instruction manual describes important precautions and
instructions for the product. Always keep it on hand for quick
reference.
Order conrmation
Open the package and check that the product conforms to your order. If
any problem or inconsistency is found, immediately contact your distributor.
a. Check if the delivery is correct.
Check the nameplate to see if the information such as model codes, discharge capacity and discharge pressure are as ordered.
b. Check if the delivery is damaged or deformed.
Check for transit damage and loose bolts.
2
Order conrmation
Contents
Order conrmation ............................................................................................. 2
Safety instructions .......................................................................6
Warning ............................................................................................................. 7
Caution .............................................................................................................. 8
Precautions for use ........................................................................................10
Overview ......................................................................................12
Introduction .....................................................................................................12
Pump structure & Operating principle .........................................................12
Features .......................................................................................................13
Operational functions ....................................................................................13
Manual mode ...............................................................................................13
Part names.......................................................................................................14
Pump............................................................................................................14
Operational panel ........................................................................................15
Basic displays & Pump states ................................................................16
Identication codes ........................................................................................17
Installation ..................................................................................18
Pump mounting ...............................................................................................18
Plumbing ..........................................................................................................19
Tube connection ..........................................................................................19
Check valve mounting .................................................................................21
Wiring .............................................................................................................. 23
Power voltage/Earthing .............................................................................. 23
Contents
3
Operation .....................................................................................26
Before operation ............................................................................................ 26
Points to be checked .................................................................................. 26
Retightening of pump head xing bolts ...................................................... 26
Use of hexagon wrench instead of a torque wrench ............................. 27
Degassing ................................................................................................... 27
Flow rate adjustment .................................................................................. 30
Before a long period of stoppage (one month or more) .............................. 32
Operation programming ............................................................................... 33
Programming ow ....................................................................................... 33
Manual operation ........................................................................................ 34
Keypad lock ................................................................................................35
Keypad lock activation ........................................................................... 35
Keypad lock release .............................................................................. 35
Maintenance ................................................................................36
Troubleshooting ..............................................................................................37
Inspection ....................................................................................................... 38
Daily inspection .......................................................................................... 38
Periodic inspection ..................................................................................... 38
Wear part replacement .................................................................................. 39
Wear part list ............................................................................................... 39
Before replacement ....................................................................................40
Valve set replacement .................................................................................41
Discharge valve set dismantlement/assembly .......................................41
Suction valve set dismantlement/assembly ..........................................43
Diaphragm replacement .............................................................................44
4
Contents
Exploded view .................................................................................................47
Pump head & Drive unit ...............................................................................47
Pump head ................................................................................................. 48
Specications/Outer dimensions ................................................................ 49
Specications .............................................................................................49
Pump unit ..............................................................................................49
Control unit ............................................................................................ 50
Power cable ........................................................................................... 50
Pump colour ..........................................................................................50
Outer dimensions.........................................................................................51
EJ-B09/-B11/-B16/-B21 VC/VH ..............................................................51
EJ-B11/-B16/-B21 TC .............................................................................52
Contents
5
Requirement
Safety instructions
Read through this section before use. This section describes
important information for you to prevent personal injury or
property damage.
■ Symbols
In this instruction manual, the degree of risk caused by incorrect use is noted
with the following symbols. Please pay attention to the information associated
with the symbols.
WARNING
CAUTION
Indicates mishandling could lead to a fatal or seri-
ous accident.
Indicates mishandling could lead to personal injury
or property damage.
A symbol accompanies each precaution, suggesting the use of "Caution", "Pro-
hibited actions" or specic "Requirements".
Caution marks Prohibited mark Requirement mark
Caution
Electrical
shock
Prohibited
Do not rework
or alter
Wear
protection
Grounding
Export Restrictions
Technical information contained in this instruction manual might be treated
as controlled technology in your countries, due to agreements in international
regime for export control.
Please be reminded that export license/permission could be required when this
manual is provided, due to export control regulations of your country.
6
Safety instructions
WARNING
Turn off power before service
Risk of electrical shock. Be sure to turn off power to stop the pump
and related devices before service is performed.
Stop operation
If you notice any abnormal or dangerous conditions, suspend op-
eration immediately and inspect/solve problems.
Do not use the pump in any condition other than its intended purpose
The use of the pump in any conditions other than those clearly
specied may result in failure or injury. Use this product in specied
conditions only.
Do not modify the pump
Alterations to the pump carries a high degree of risk. It is not the
manufacturer's responsibility for any failure or injury resulting from
alterations to the pump.
Electrical
shock
Requirement
Prohibited
Do not rework
or alter
Safety instructions
Wear protective clothing
Always wear protective clothing such as an eye protection, chemi-
cal resistant gloves, a mask and a face shield during disassembly,
assembly or maintenance work. The specic solution will dictate the
degree of protection. Refer to MSDS precautions from the solution
supplier.
Do not damage the power cable
Do not pull, knot, or crush the power cable. Damage to the power
cable could lead to a re or electrical shock if cut or broken.
Do not operate the pump in a ammable atmosphere
Do not place explosive or ammable material near the pump.
WARNING
Wear
protection
Prohibited
Prohibited
7
CAUTION
Qualied personnel only
The pump should be handled or operated by qualied personnel with a
full understanding of the pump. Any person not familiar with the prod-
uct should not take part in the operation or maintenance of the pump.
Use specied power only
Do not apply power other than that specied on the nameplate. Other-
wise, failure or re may result. Ensure the pump is properly grounded.
Do not run pump dry
Do not run pump dry for more than 30 minutes (even when the
pump runs for degassing). Otherwise, the pump head xing screws
may loosen and liquid may leak. Optimise your system. If the pump
runs dry for a long period (for more than 30 minutes), the pump
head and the valve cases may deform by friction heat and conse-
quently leakage results.
Requirement
Prohibited
Caution
Keep electric parts and wiring dry
Risk of re or electric shock. Install the pump where it can be kept dry.
Ventilation
Fumes or vapours can be hazardous with certain solutions. Ensure
proper ventilation at the operation site.
Do not install /store the pump:
• In a ammable atmosphere or a dusty/humid environment.
• Where ambient temperature can exceed 0-40ºC.
• In direct sunlight or wind & rain.
Spill precautions
Ensure protection and containment of solution in the event of
plumbing or pump damage (secondary containment).
8
CAUTION
Prohibited
Caution
Prohibited
Requirement
Do not use the pump in a wet location
The pump is not waterproof. Use of the pump in wet or extremely
humid locations could lead to electric shock or short circuit.
Grounding
Risk of electrical shock! Always properly ground the pump. Con-
form to local electric codes.
Install a GFCI (earth leakage breaker)
An electrical failure of the pump may adversely affect other de-
vices on the same line. Purchase and install a GFCI (earth leakage
breaker) separately.
Preventative maintenance
Follow instructions in this manual for replacement of wear parts. Do
not disassemble the pump beyond the extent of the instructions.
Prohibited
Grounding
Electrical
shock
Requirement
Safety instructions
Do not use a damaged pump
Use of a damaged pump could lead to an electric shock or death.
Disposal of a used pump
Dispose of any used or damaged pump in accordance with local
rules and regulations. If necessary, consult a licensed industrial
waste disposal company.
Check pump head bolts
Liquid may leak if any of the pump head bolts become loose.
Tighten the bolts diagonally and evenly by 2.16N•m before initial
operation and at regular intervals.
Install a relief valve
Install a relief valve on a discharge line near the pump so as to
release the discharge pressure when it exceeds the maximum level.
CAUTION
Prohibited
Requirement
Caution
Requirement
9
Precautions for use
• Electrical work should be performed by a qualied electri-
cian. Otherwise, personal injury or property damage could
result.
• Do not install the pump:
–In a ammable atmosphere.
–In a dusty/humid place.
–In direct sunlight or wind & rain.
– Where ambient temperature can exceed 0-40ºC.
Protect the pump with a cover when installing it out of
doors.
• Select a level location, free from vibration, that won't hold
liquid. Anchor the pump with four M5 bolts so it doesn't
vibrate. If the pump is not installed level, output may be
affected.
Caution
• When two or more pumps are installed together, vibration
may be signicant, resulting in poor performance or failure.
Select a solid foundation (concrete) and fasten anchor bolts
securely to prevent vibration during operation.
• Allow sufficient space around the pump for easy access
and maintenance.
• Install the pump as close to the supply tank as possible.
• When handling liquids that generate gas bubbles (sodium
hypochlorite or hydrazine solution), install the pump in a
cool and dark place. Flooded suction installation is strongly
recommended.
10
Precautions for use
Caution
Caution
Caution
Caution
• Use care handling the pump. Do not drop. An impact may
affect pump performance. Do not use a pump that has
been damaged to avoid the risk of electrical damage or
shock.
• The pump has a rating of IP65 equivalent, but is not water-
proof. Do not operate the pump while wet with solution or
water. Failure or injury may result. Immediately dry off the
pump if it gets wet.
• Do not close discharge line during operation. Solution may
leak or piping may break. Install a relief valve to ensure
safety and prevent damaged plumbing.
• Solution in the discharge line may be under pressure.
Release the pressure from the discharge line before dis-
connecting plumbing or disassembly of the pump to avoid
solution spray.
Safety instructions
Caution
Caution
Requirement
• Wear protective clothing when handling or working with
pumps. Consult solution MSDS for appropriate precautions.
Do not come into contact with residual solution.
• Do not clean the pump or nameplate with a solvent such
as benzine or thinner. This may discolor the pump or erase
printing. Use a dry or damp cloth or a neutral detergent.
Precautions for use
Caution
Thinner
Benzine
11
Overview
Pump characteristics, features and part names are described
in this section.
Introduction
Pump structure & Operating principle
The EJ series is a diaphragm metering pump which consists of a pump head
and a drive unit with a built-in controller. A diaphragm is directly driven by electromagnetic force.
Principle of operation
The pulse signal via the PCB generates the electromagnetic force to make
reciprocating motion with the assistance of the spring force. The reciprocating
motion is transferred to a diaphragm through a plunger and then volumetric
change occurs in the pump head. This action transfers liquid along with pump
head valve action.
Control unit Pump head
12
Introduction
OUT
Spring
Pump head valve
Plunger
Diaphragm
Pump head valve
IN
Features
● Multivoltage operation
The EJ series is a multivoltage type (100-240VAC) and can be selected with-
out local power limitations.
● High turndown ratio
Digitally-controlled spm range is 1-360spm.
● IP rating of 65 equivalent
This pump is not waterproof. Protect the pump with a cover when installing it
out of doors.
Operational functions
Manual mode
Run/stop the pump by the start/stop key. A stroke rate (MAN speed) can be
changed in the range of 1-360spm by the up key at any time during operation
or stop. See page 34 for detail.
*The pump can also be turned ON/OFF by switching the main power.
Overview
Key operation
(Start/Stop key)
Pump operation
Run Run
Stop
Stop
Operational functions
13
Part names
Pump
Air vent por t
Always connect a tube. Be sure
to return the tube end to a supply
tank or a container.
A circumferential direction of the
port can be changed up to 90
degrees counterclockwise from
the original position.
Outlet
Air vent body
Inlet
Adjusting screw
Used for opening the air vent port.
14
Part names
Power cable
Pump head
Base
Always fix with bolts.
Control unit
Used for the start/stop of
the pump and stroke rate
adjustment.
Nameplate
Describes the pump
specifications.
Operational panel
ON LED
Lights as turning on power
and flashes at each stroke.
Display
Stroke rate and operational
status are shown here.
ON
START
STOP
UP key
Used for increasing numeric values. If this key is kept pressed, the
value rises faster. The EJ doesn't
have the DOWN key, so if you
want a lower spm, first get to the
max 360 spm and then push this
key once. The spm will return to 1.
Overview
START/STOP key
Used for starting/stopping the pump.
Part names
15
■ Basic displays & Pump states
Shows a pump speed in spm. The spm
flashes during operation in MAN mode.
The indication changes to "- - -" when the
pump enters maintenance mode.
Represents keypads are locked.
Display info ON LED lights
A wait state in MAN mode:
The display shows the MAN
speed in spm.
―
The pump is in maintenance
mode. When extending the diaphragm, the display ashes.
ON LED ushes
(in sync with each shot)
Operation in MAN mode:
A current spm ashes (not in
sync with a pump shot).
Keypads are locked and any key
operation is cancelled.
―
16
Part names
Identication codes
The model codes of the pump/drive units represent the following information.
EJ - B 11 VC 1 J S _ - _ _
a b c d e f g h i
a. Series name
EJ: Multivoltage electromagnetic metering pump
b. Drive unit (Average power consumption)
B: 15W
c. Diaphragm effective diameter
09: 8mm 11: 10mm 16: 15mm 21: 20mm
d. Wet end materials
Code Pump head Valve O ring Valve seat Gasket Diaphragm
VC
VH HC276 EPDM EPDM
TC PVDF Alumina ceramic FKM FKM
Material code
PVC : Transparent polyvinyl chloride HC276 : HASTELLOY C276
FKM : Fluorine-contained rubber EPDM : Ethylene-propylene rubber
PTFE : Polytetrauoroethylene PVDF : Polyvinylidene diuoride
PVC
Alumina ceramic FKM FKM
PTFE
PTFE + EPDM
(dry end)
e. Tube size
Area Asia Australia
Material VC VH VC VH TC
No code - - ø6×ø8 ø6×ø8 ø6×ø8
1 ø4×ø9 ø4×ø9 ø4×ø9 ø4×ø9 2 ø4×ø6 ø4×ø6 ø4×ø6 ø4×ø6 ø4×ø6
3 ø6×ø8 ø6×ø8 ø6×ø8 ø6×ø8 ø6×ø8
7 - - ø¼"×ø⅜" ø¼"×ø⅜" ø¼"×ø⅜"
23 - - ø6×ø12 - 24 - - ø5×ø8 - ø5×ø8
Overview
f. Power cable
J: Asian type A: Australian type
g. Control unit function
R: With external control
h. Special version
i. Special conguration
Identication codes
17
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