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IWAKI EHN-B11SH, Instruction Manual

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IWAKI EHN-B11SH Instruction Manual Download Page 43

- 42 -

Exploded view

Parts are completely disassembled for easy understanding but the extent of disassembling is limited to the instruction 
shown on Maintenance section.

Bleed assembly

Control unit

Gasket

Gasket

Cord nut

Cap

Cord gasket

Case gasket

Controller case

Tapping screw

Terminal gasket

Bracket

Spacer

Pump body

Cap

Screw

Stroke length knob

Pump assembly

Control cover

Screw

Valve set

Spacer

Retainer

Diaphragm

Valve set

Summary of Contents for EHN-B11SH

Page 1: ...EHN SH Instruction Manual IWAKI Electromagnetic Metering Pump Read this instruction manual before use of product...

Page 2: ...the Warning section could lead to a serious accident which may result in death Caution Contents Instruction for safety 1 3 Outline of product 1 Unpacking and inspection 4 2 Principle of operation 4 3...

Page 3: ...r Qualified operators only Any operation of the pump is permitted to only the per son with a enough understanding of the pump Specified power only Do not apply any power other than specified one on th...

Page 4: ...without using an earth leakage breaker may cause an electrical shock Purchase an optional leak age breaker and install in the system Prohibited Handling of the power cable Use of a defective or damag...

Page 5: ...a control unit The reciprocating motion is transferred to a diaphragm through a plunger and makes volumetric change in a pump chamber Pumping action is obtained by volumetric change and by valve actio...

Page 6: ...ller function code R Standard type 7 Special type code 01 99 Non standard material Non standard connection etc Control unit EHNC B R 1 2 3 4 1 Control unit type EHNC Multi voltage type with crimp cont...

Page 7: ...ct such as relay is used its applicable load should be 5mA or below Note 2 The input signals over the upper limit stroke rate are stored up to 255 signals Note 3 The residual input signals over 360 sp...

Page 8: ...nchronously with a external pulse in the ratio of 1 1 5 2 EXT operation EXT input Multiply when a set number of pumping is 5 EXT input Dividing when a set number of pumping is 5 EXT input operation Pu...

Page 9: ...nal comes contact closed The pump operates in EXT mode while STOP signal is coming 6 2 M ON setting Discharge port Adjusting screw Pump head Suction port Base Fix base with screws Stroke length adjust...

Page 10: ...ile STOP signal comes Chattering is being set T 10 or T 50 is displayed other than T 5 STOP function is set to M OF M ON is displayed when M ON is selected The multiply ratio of EXT mode is being set...

Page 11: ...l it outdoor Select an installation site convenient for future maintenance and inspec tion and fix the pump on a flat floor free of vibrations 2 Precaution on handling Warning Turn off power Working w...

Page 12: ...ver do not detach it unless it is not required Never use the detached control unit with other pump models Grounding Risk of electrical shock Do not operate the pump without grounding Limited operating...

Page 13: ...ep ing in mind ease and efficiency for maintenance and inspection work Do not expose the pump to sunlight or rainwater Cover the pump when placing it outside Place the pump as close to the suction tan...

Page 14: ...for opening pressure Fig C 5m Suction side tank Discharge side tank Bleed port 5 Mounting check valve A check valve is packed to avoid over feeding Be sure to install the check valve in fol lowing con...

Page 15: ...away from pump 5 Electrical wiring 5 1 Wiring of power source 1 Confirm that main power source is turned off before wiring 2 Wiring must be done according to your electrical works standard using good...

Page 16: ...but turning ON OFF power pay attention to following points In case power is turned ON OFF by the relay its contact vol ume must be 5A or more Contact point may be welded if con tact volume is 5A or b...

Page 17: ...tion effect from the power cable and results in wrong operation or failure When using SSR solid state relay for EXT STOP signal input When using SSR for EXT STOP signal input use the recom mended prod...

Page 18: ...op of control unit and then remove screw gasket and two screws above stroke length adjusting knob and remove the control unit 2 Remove four screws on the bottom of control unit and remove controller c...

Page 19: ...er and controller may be failed Wiring to socket for signal input Terminal for power source Plug H Socket Potential free contact signal Open collector signal Socket STOP signal STOP signal EXT signal...

Page 20: ...tening torque 19 Operation 1 Operation After the installation piping and wiring processes are completed operate the pump in accordance with the following steps Model Caution Torque Remarks EHN B11 21...

Page 21: ...hrough parts Caution Regarding the SH type discharge pressure can not be fully opened by the adjusting screw Install a discharge valve on discharge pipe for opening pressure Bleed port Adjusting screw...

Page 22: ...troke rate adjustment Fixed stroke rate 100 75 50 25 0 25 50 75 100 Discharge capacity Stroke length adjustment B type 360spm Stroke rate is fixed at 100 270spm Stroke rate is fixed at 75 180spm Strok...

Page 23: ...pm Discharge capacity Stroke rate adjustment spm Caution Never turn stroke length adjust ing knob when pump is stopped 3 Stroke length adjustment Stroke length is adjusted by changing the returning di...

Page 24: ...es not suck up liquid and remove adhered matters Remove the air if it remains in the pump head and re adjust dis charge capacity Refer to pages 21 22 Caution Try to stop the pump by key operation befo...

Page 25: ...play 2 Manual waiting display Setting display of stroke speed 7 Display selection of EXT operation ON STROKE RATE 3 Key lock display ON STROKE RATE ON STROKE RATE ON STROKE RATE Press for 3 seconds sh...

Page 26: ...e the setting of anti chattering push key as pressing key to move to move to anti chattering setting display Push key to set and push key to confirm it and return to manual waiting mode Note 1 This va...

Page 27: ...se the quick figure change stops at 1 or 360 And then figure skips from 360 or 1 to 1 or 360 by releasing the key once and then pushing or key again 4 Start stop of pump ON STROKE RATE In case a strok...

Page 28: ...waiting mode and set a stroke rate 2 3 2 EXT operation 1 Turn on power ON STROKE RATE In the manual waiting mode push key as pressing key to move to the EXT mode The pump starts to run synchronously...

Page 29: ...n is displayed in the manual waiting mode During manual operation with key pad locked Press key for 3 seconds when key pads are locked The key mark disappears and keypad operations become effective Ca...

Page 30: ...power off If STOP or STOP indication is displayed the STOP function is active First release STOP function Refer to page 35 for how to release the STOP function 2 Move to the EXT mode Push key to move...

Page 31: ...power is turned on for the first time program version is shown briefly and the manual waiting mode appears On and after the second time the pump is turned on the pump restarts in the EXT operation mod...

Page 32: ...version is shown briefly and the manual waiting mode appears On and after the second time the pump is turned on the pump restarts in the EXT operation mode with EXT indication on the display if the p...

Page 33: ...ON Use or key to select the EXT indication or spm indication in the display selection mode of EXT operation 5 Return to the EXT mode ON STROKE RATE Push key to return to the EXT mode The above display...

Page 34: ...r with a pump controller 50 series set the anti chattering to T 5 The pump may not operate if it is set to T 10 or T 50 ON STROKE RATE If the pump is EXT mode push key If STOP or STOP is shown release...

Page 35: ...nction Refer to page 35 to release the STOP function 2 Go to the anti chattering setting display ON STROKE RATE In the manual waiting mode push and keys simultaneously to show T 5 factory setting on d...

Page 36: ...ng setting 2 Move to the anti chattering setting display When STOP indication appears push key while pressing key Display shows T 5 T 10 or T 50 3 Move to the STOP setting display Push key once Displa...

Page 37: ...d voltage Electronic circuit of control unit is damaged Correct wiring Trace cause and raise voltage to specified level Replace the whole unit Substrate part cannot be repaired Liquid suction cannot b...

Page 38: ...visual inspec tion By visual inspec tion Tightening torque of pump head mounting screw Parts Q ty Time to be replaced Pump head Valve set SH 2 sets 8000 hours Diaphragm 1 Check valve 1 Note Durabilit...

Page 39: ...ation may not be put in memory If this happens pump starts when power is turned on again and chemical may be discharged Method to release pressure 1 Stop the pump 2 Turn the adjusting screw to open di...

Page 40: ...the pump head Then screw the fitting in the pump head by hand Tighten the fitting by 1 4 turn with a spanner in the last place 2 Mount the suction side valve set Put the valve set in the fitting 3 an...

Page 41: ...1 Remove the suction hose discharge hose and bleed hose 2 Remove the pump head with a hex wrench 3 Turn the diaphragm to remove it from the plunger pump shaft Warning Pay attention not to lose the di...

Page 42: ...dia phragm Do not remove the bracket spacer If removed mate projected and recessed part of the bracket and bracket spacer and insert them to the bottom 3 Screw the diaphragm into the plunger 4 Operate...

Page 43: ...mited to the instruction shown on Maintenance section Bleed assembly Control unit Gasket Gasket Cord nut Cap Cord gasket Case gasket Controller case Tapping screw Terminal gasket Bracket Spacer Pump b...

Page 44: ...iaphragm 1 9 Retainer 1 11 Valve guide 4 12 Valve seat 4 13 Valve 4 14 Valve gasket B 2 18 Diaphragm spacer 19 Hex socket cap bolt 4 28 Valve gasket A 8 29 Seal nut 1 30 Adjusting screw 1 31 Spring 1...

Page 45: ...44 Outline dimension EHN B11 B21 SH EHN C21 SH 12 0 5 76 12 0 5 76...

Page 46: ...45 Outline dimension EHN C31 C36 SH 12 0 5 76...

Page 47: ...6606 TEL 60 3 7803 8807 TEL 886 2 8227 6900 TEL 66 2 322 2471 TEL 852 2 607 1168 TEL 86 750 380 9018 TEL 86 20 8435 0603 TEL 86 10 6442 7713 TEL 86 21 6272 7502 TEL 63 2 888 0245 TEL 82 2 3474 0523 FA...

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