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D/N.MJOM117E, 2016SR03       

ULVAC CRYOGENICS INCORPORATED

                           

 
 
 
 
 

Liquid  Nitrogen  Generator 

 

Instruction  Manual 

 
 
 

 

 

 

 

 

 

 

 

 

 

 

 
 

EMP-20W 

Export Control Policy 

When applying our refrigerator to a cryocooler for optical sensors, the 
cryocooler falls under row 6.A.2.d.2 of the control list established by 
The  Wassenaar  Arrangement,  which  is  equal  to  row  10(2)  of 
appended table 1 of Japan’s Export Trade Control Order. 
Customers  must  follow  all  related  rules  and  regulations  such  as 
Foreign  Exchange  and  Foreign  Trade  Act  and  take  appropriate 
procedures when exporting or re-exporting our refrigerators. 

Summary of Contents for EMP-20W

Page 1: ...ical sensors the cryocooler falls under row 6 A 2 d 2 of the control list established by The Wassenaar Arrangement which is equal to row 10 2 of appended table 1 of Japan s Export Trade Control Order Customers must follow all related rules and regulations such as Foreign Exchange and Foreign Trade Act and take appropriate procedures when exporting or re exporting our refrigerators ...

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Page 3: ...nded for use by qualified personnel who recognize shock hazards and are familiar with the safety precautions required to avoid possible injury To ensure proper use of this product read this instruction manual carefully and keep this manual close at hand so that you can use for reference during operation If you purchased our other products and or optional devices with this product read relevant ins...

Page 4: ...r unsafe practices which could result in severe injury or loss of life A caution describes safety hazards or unsafe practices which could result in personal injury or equipment damage Toxic gas or chemicals used There is a risk of severe injury upon contact Corrosive chemicals used There is a risk of severe injury upon contact Flammable gas used There is a danger of fire or burn injury Explosive g...

Page 5: ...of EMP 20W Figure 2 2 7 2 3 Inside view of EMP 20W front door and lower panel Figure 2 3 10 2 4 EMP 20W Electrical circuit Figure 2 4 10 3 Flow Diagram 12 4 Specifications 13 4 1 Liquid nitrogen generator 13 4 2 PSA Pressure Swing Adsorption nitrogen gas generator 13 4 3 Membrane nitrogen gas generator 13 5 Utilities 14 5 1 Power source for EMP 20W 14 5 2 Cooling water for EMP 20W 14 5 3 Power sou...

Page 6: ...trogen Manually 27 9 1 Connecting liquid nitrogen supply flexible hose 27 9 2 Supply of liquid nitrogen 27 9 3 Disconnection of flexible hose 28 10 Automatic Transfer of Liquid Nitrogen 29 10 1 Inspections before starting automatic transfer 29 10 2 Automatic transfer 29 10 3 Time limit of automatic transfer 29 11 eco Mode 30 11 1 eco mode 30 12 Maintenance and Inspection 31 12 1 Daily inspection 3...

Page 7: ...en gas itself is not toxic to human bodies but it reduces the oxygen concentration in the atmosphere the oxygen concentration of 18 or below is defined as an oxygen depleted state Choose a well ventilated and good air circulated location to install the present unit and install a ventilator with a capacity of at least 2000 m3 Hr airflow In addition do not stay together with a dewar containing liqui...

Page 8: ...f it is touched directly Carry out maintenance repair etc at least 30 minutes after the unit is stopped In this unit high pressure Helium gas is filled To disassemble or dispose of the unit parts and others be sure to discharge gas under regular maintenance there is no need to discharge gas In addition never attempt to install the apparatus under the atmosphere of hydrochloric acid based chlorine ...

Page 9: ...ws regulations or guidelines when disposing of our products We provide Safety Data Sheet SDS of our products upon your request Please contact us when necessary WARNING When the refrigerator unit may have pumped toxic or dangerous gases you must contact your safety supervisor at the time of disposal and follow the instructions to remove hazardous substances before disposing ...

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Page 11: ...is equipment please refer to the operation manual for UW404 1 3 PSA Pressure Swing Adsorption Nitrogen Generator type GN 15i PSA Nitrogen Generator GN 15i generates highly concentrated nitrogen from air using adsorber and supply the gas to EMP 20W The nitrogen generated here is used as the material for liquid nitrogen and is also used to take out liquid nitrogen PSA nitrogen generator is hereafter...

Page 12: ...cription ription Figure 2 1 Front view of EMP 20W Figure 2 1 Front view of EMP 20W RUN STOP RESET AUTO READY SUPPLY AUTO MANU START STOP eco MANU Maintenance COMP AL GN2 AL L 0 80 OR 60 40 20 Temp monitor option Figure 2 2 Operation panel of EMP 20W ...

Page 13: ... Since the port may reach extremely low temperature be careful not to touch such port during or right after supply of liquid nitrogen Automatic transfer port This port is an optional Swagelok coupling to connect LN2 automatic transfer tube Optional Note that the port reaches to extremely low temperature during and immediately after dispensing LN2 Display of UW404 Displays the status of UW404 2 2 O...

Page 14: ...s button once again while it is blinking to extend the supply time by 10 minutes MANU STOP Push this button to interrupt the manual supply of liquid nitrogen supply operation Indicator Displays the guideline amount of liquid nitrogen in liquid nitrogen dewar eco Press this button to switch to eco mode operation and the button lights in blue For eco mode please refer to 13 eco mode COMP AL Turns on...

Page 15: ...as charge valve Helium gas charge port Compressor Hour meter UW404 Pressure gauge S050 Inside of a panel Inside of a panel Cold head Liquefied nitrogen dewar Compressor START STOP Electrical circuit RESET POWER Helium gas pressure gauge Helium gas charge valve Hour meter Helium gas charge port Level sensor converter Fuse P converter ower breaker PLC Terminal block Fuse PLC Sequencer P r ower break...

Page 16: ...ort except when needed He Gas charge valve Used when charging Helium gas Do not touch the valve except when needed as touching it may result in Helium leakage START STOP switch This button lights in green when UW404 is in operation This does not work to turn on and off UW404 as it is remotely controlled in this configuration RESET button This button lights in red when UW404 is suspended with some ...

Page 17: ...or in this unit please inform us of the status of input or output lights of the sequencer when contacting us Level sensor converter It is the electric parts for detecting the amount of liquid nitrogen in EMP 20W Since it is adjusted precisely please do not touch any button Terminal blocks These connect the wiring of signal reception of the electric appliances and automatic transfer destination con...

Page 18: ...圧力調整弁 LV 2 冷却水ホース コールドヘッド SV 4 液化窒素 フレ 取り出し キホース 液化窒素供給配管 低温電磁弁 自動 低温電磁弁 手動 液化窒素供給配管 低温電磁弁 自動 Cryogenic Solenoid Valve Auto Pressure Control Ambient Temperature Solenoid Valve LN2 Supply Tube Cryogenic Solenoid Valve Manu LN2 Supply Flexible Hose LN2 Supply Tube Cryogenic Soleniod Valve Auto 温度指示計 TI Control Circuit Temperature Indicator TI Pressure Gauge Pressure Relief Valve Coldhead Cable Coldh...

Page 19: ...0W must not be used in the atmosphere with organic solvents or corrosive gases 4 2 PSA Pressure Swing Adsorption nitrogen gas generator Type GN 15i Dimensions 480 W 620 D 1015 H Weight Approx 90kg Cooling method Air cooling Inhale from the front exhaust from the back c GN 15i must be installed indoors c GN 15i must not be used in the atmosphere with organic solvents or corrosive gases c Air inhale...

Page 20: ...Cooling water for EMP 20W Flow rate 180 330L hour recommended 270L h Pressure 0 04 0 17 MPa recommended 0 1MPa Temperature 10 30 C recommended 20 C Water quality Tap water equivalent Check the water quality on a regular basis The flow rate of cooling water should be within the following allowable range When the flow rate or pressure is too low it may result in abnormal suspension failure or damagi...

Page 21: ...RATED 15 Allowable range for cooling water water temperature range At 30 C Inlet Temperature C Cooling Water flow rate L Hr Pressure Drop MPa Cooling water flow rate L Hr Figure 5 1 Allowable range of cooling water for EMP 20W ...

Page 22: ...nsumption 0 8 kW 50 60 Hz Connection 3 pin outlet plug with ground wire Use Class D earthing for safety CAUTION 5 4 Dry air for IM 120 when using IM 120 Pressure 0 5MPa 1 0MPa Flow Rate 120L min or more Dew Point 17 C or below at the atmospheric pressure Air Quality Oil free NOTE Use compressors equipped with a dryer Supply dry air continuously ...

Page 23: ...mperature is 10 35 C and humidity is 80 or less without condensation in other than cooling water hoses 3 Secure the following spaces for maintenance work 正面以外のスペースは 保守 点検時にのみ必要であり 常時確保していただく必要はありません Figure 6 1 Maintenance space for EMP 20W 4 Lock the wheels to fix the equipment 9 3 0 7 4 0 5 0 0 背面 正面 EMP 20W上面 EMP 20W Top side Back Front Spaces other than front are required only at the time of ma...

Page 24: ...the connector for tubes to the dry air valve Screw size is R1 4 2 Onto the connector attached as in the step 1 attach the tube for dry air supply Connect the other side of the tube to AIR IN connector on the back side of IM 120 6 4 Utility connection of EMP 20W Remove the back panel of EMP 20W and locate holes for utility connection on the bottom Connect cables of power supply nitrogen tube and re...

Page 25: ...d is made attach the power cable to the circuit breaker and supply electricity by turning on the breaker in the electric circuit part of EMP 20W Be sure to confirm that the power is supplied to the sequencers or other parts in the electric circuit of EMP 20W Do not connect the earth ground wire to power lines It may result in electric shock or electric leakage When you operate multiple devices wit...

Page 26: ...t the water flow is correct and no leak is seen in the coupling or hoses in the joint part of couplings or hose 5 When you use cooling water circulation system set the water temperature at 20 C CAUTION Water may leak if the connection between cooling water joint and hose is too loose CAUTION Be sure to connect the hose to the correct port Wrong connection may result in breakage of cooling water tu...

Page 27: ...7 TIC 2 4V 0 V R0 T0 S0 X 1 Y 1 コンプレッサー電源ケーブル L 3 5 S Q 6 7 1 0 1 1 RST 1 RST 2 R1 STR 1 STR 2 3 4 P24 V 01 1 PB1 コンプレッサーリモートコネクター COMP リモートコード 0 5 S Q Compressor Remote Connector Compressor Remote Cord GN Remote Connector Internal GN Remote Cord Replace Faston Terminal NF PWS ELB PLC E S F 1 2 3 LDC R1 PBL1 4 PBL3 PBL2 PB1 3 PB2 PL1 2 LI C1 R2 R3 PBL5 PL3 C2 R R SV1 SV2 SV3 TIC Name Symbol Earth ...

Page 28: ...signal Reserve Cryogenic Manual Electromagnetic Valve Cryogenic Auto Electromagnetic Valve Room Temperature Electromagnetic Valve Cooling Water Electromagnetic Valve Display eco Display Maintenance GN Start Signal Reserve Input COM Generator Level Sensor Upper Limit Generator Level Sensor 100 Generator Level Sensor 75 Generator Level Sensor 50 Generator Level Sensor 25 Generator Level Sensor 0 Aut...

Page 29: ...of GN 15i GN 15i starts up When it starts operation normally the POWER switch on EMP 20W flashes with long term light on and short term light off Note Once operation starts RUN STOP switch does not work for the following six minutes If you wish to stop press the emergency off button 2 6 minutes later from starting of GN 15i the ball in the flow meter in the front rises and nitrogen gas supply star...

Page 30: ...L 75 and stops when it reaches to 80L 100 This cycle goes on repeatedly 8 3 Shutdown When EMP 20W is turned OFF with the RUN STOP button the RUN STOP light flashes with shorter light on and longer off and RUN STOP button lights off and all the operations stop including liquefying supplying nitrogen gas or dispensing liquid nitrogen Due to the residual heat of UW404 stop the cooling water supply te...

Page 31: ... event of a power failure and they will be rebooted automatically when the electricity comes back However when the amount of liquid nitrogen inside is 75 or more liquefying operation may not be resumed at the time of rebooting These are the common precautions when rebooting 8 5 2 Corrective action when COMP AL occurs 1 Check the electric supply voltage and capacity 2 Press RESET button of EMP 20W ...

Page 32: ...and flow rate is 15NL min turn ON the RUN STOP switch of EMP 20W to restart 8 5 4 Emergency off In case of an emergency press the emergency off button on the front to disconnect the control power supply and stop all the operation of EMP 20W CAUTION An emergency shutdown might damage the equipment Do not use this button except in emergency To restart turn the emergency off button to the right ...

Page 33: ...in your liquid nitrogen container and press and hold the MANUAL START button for 3 seconds With the above steps liquid nitrogen flows out of head end of flexible hose The dispense operation stops automatically in 10 minutes from the start of supply The MANUAL START button flickers 30 seconds in advance of the automatic termination When more liquid nitrogen is needed press MANUAL START button again...

Page 34: ... liquid nitrogen may result in damaging the O ring inside the coupler joint Disconnect flexible hoses in the opposite procedure to connecting Push down the outer ring of the joint on the side of EMP 20W and pull out the flexible hose to disconnect Disconnect flexible hoses in the opposite procedure to connecting Push down the outer ring of the joint on the side of EMP 20W and pull out the flexible...

Page 35: ... the level sensor of the target device detects the LN2 level is 25 or lower If our level sensor is used Automatic transfer can be started forcibly by pressing AUTO SUPPLY button AUTO SUPPLY button lights up in white while automatic transfer is taking place 3 When the level sensor of the target device detects the LN2 level reaches 100 automatic transfer will be terminated Automatic transfer will al...

Page 36: ...atic transfer to the target device six minutes later than signal input Manual dispense is not available during eco mode To dispense manually reset the eco mode and wait for 6 minutes until the nitrogen gas generator resumes operation Manual dispense is not available during eco mode To dispense manually reset the eco mode and wait for 6 minutes until the nitrogen gas generator resumes operation Whe...

Page 37: ... Oil adsorber Helium tube joint GN 15i Air Compressor GN 15i Filter 2 GN 15i Solenoid valve Parts 1year 2years 5years IM 120 Membrane IM 120 Prefilter IM 120 tube joint IM 120 Fixed throttle valve IM 120 Check Valve Please confirm the total operation time of EMP 20W with the hour meter on UW404 The total operation time of GN 15i is shown in the sequencer display in the electric circuit of EMP 20W ...

Page 38: ...e replacements Be sure to turn off the main power source before performing the maintenance work WARNING Since helium is filled in this equipment as well as in the maintenance parts cold head oil adsorber do not disassemble these parts When you have to disassemble or dispose such parts discharge helium using the optional charging adapter kit WARNING 12 3 Regular customer inspection The EMP 20W is a...

Page 39: ...Turn ON the circuit breaker The fuse of electrical circuit of EMP 20W is blown Replace the fuse with a new one If the fuse is blown repeatedly please contact us The emergency stop button is pressed Reset the emergency stop switch by turning it in direction of arrow and close the power source again 2 Equipment fails to start even if the RUN STOP switch lights up The remaining LN2 level is not decre...

Page 40: ... conditioners 5 COMP AL lights on and the liquefaction does not start RUN STOP button starts to blink Electric parts of UW404 break down Please contact us Helium charge pressure of UW404 is lower than specified Charge helium gas to the specified pressure of UW404 Contact us for more information on charging 6 RUN STOP blinks and EMP does not start liquefying operation Alarm light is not lit Less th...

Page 41: ... nitrogen The helium gas piping and refrigerator cables are not connected correctly Connect the helium gas lines and refrigerator cables correctly The level sensor fails to detect correctly Please contact us 9 The rate of Liquid Nitrogen generation is lowered Cold head and oil adsorber exceed the recommended maintenance interval Conduct the maintenance according to the operation time Helium charge...

Page 42: ...Please contact us 11 MANU START button blinks Only 30 seconds left until the time limit of 10 minutes of manual dispense Press MANU START button again to continue dispending manually 12 AUTO READY button and AUTO SUPPLY button blink alternately The level sensor of the target device continues sending the signal to supply although the time limit of automatic supply is over Press AUTO READY button to...

Page 43: ...t 2 Screw size R1 2 Nitrogen Gas Tube 1 5m Single Head Wrench 1 Glass Fuse 3 3A x 2 2A x 1 Instruction Manual 1 This book GN 15i Remote Cable for Nitrogen Generator 1 5m Instruction Manual 1 IM 120 Remote Cable for Nitrogen Generator 1 5m Connector for Tubes 1 Screw size R1 4 Dry Air Supply Tube 1 5m Instruction Manual 1 z The above accessories may be changed according to the directions by custome...

Page 44: ...hose cases the cost shall be your own expense even though the product is within the warranty period 1 Breakdowns due to improper storage or handling careless accident software or hardware design by the customer 2 Breakdowns due to modifications of the product without consent of the manufacturer 3 Breakdowns due to maintenance of the product without authentic parts or breakdowns resulting from usin...

Page 45: ... CRYOGENICS products and compensation for damages to products other than ULVAC CRYOGENICS products and other services are not covered under warranty 3 Repair period after production is discontinued ULVAC CRYOGENICS shall accept product repairs for seven years after production of the product is discontinued Manufacturer ULVAC CRYOGENICS INCORPORATED For our contact information refer to SERVICE NETW...

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Page 47: ...a Chigasaki Kanagawa 253 0085 Japan Sales Tel 81 467 85 8884 Service Engineering Division Tel 81 467 85 9366 Fax 81 467 83 4838 ULVAC CRYOGENICS KOREA INC www ulvac cryo co kr 107 Hyeongoksandan ro Cheongbuk Myeon Pyeongtaek si Gyeonggi Do Korea 17812 Tel 82 31 683 2926 Fax 82 31 683 2956 ULVAC CRYOGENICS NINGBO INC www ulvac cryo com No 888 Tonghui Road Jiangbei District Ningbo China 315020 Tel 8...

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Page 49: ...2 2015 08 05 2016 09 14 2014 12 2015MY01 2015AT02 2016SR03 First edition 9 5 3 has been partially modified The model of PSA nitrogen generator has been changed The format of Warnings and Cautions has been changed Disposal Consideration has been added 15 Warranty The company address has been changed ...

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