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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.
D/N.MJOM117E, 2016SR03
ULVAC CRYOGENICS INCORPORATED
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Summary of Contents for Ulvac EMP-20W
- Page 1 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. D/N.MJOM117E, 2016SR03 ULVAC CRYOGENICS INCORPORATED...
- Page 3 If you purchased our other products and/or optional devices with this product, read relevant instruction manuals carefully. ULVAC CRYOGENICS INCORPORATED...
- Page 4 There is a risk of fire or explosion. Hazardous voltage . Electric shock may cause severe injury or loss of life. Hot heating part present. There is a risk of burn injury. Low-temperature area present. There is a risk of frostbite. Do not touch. ULVAC CRYOGENICS INCORPORATED...
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Page 5: Table Of Contents
2. Component Description ···································································· 6 Front view of EMP-20W (Figure 2-1) ··············································· 7 Operation panel of EMP-20W (Figure 2-2)········································ 7 Inside view of EMP-20W front door and lower panel (Figure 2-3) ······················································································· 10 EMP-20W Electrical circuit（Figure 2-4） ····································· 10 3. Flow Diagram ················································································ 12 4. - Page 6 Utility connection of EMP-20W ···················································· 18 7. Electric Wiring ··············································································· 21 8. Operation ······················································································ 23 Checks prior to operation····························································· 23 Preparation for operation ···························································· 23 Shutdown ·················································································· 24 When suspending for long time (for 1 to 2 weeks) and resuming EMP-20W ··········································································· 24 Corrective action in the event of an error ·······································...
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Page 7: Safety Instructions
The volume of nitrogen gas is 700 times of liquid nitrogen. Confining atmospheric pressure liquid nitrogen in an airtight space produces high-pressure gas as high as 700 Atm, possibly resulting in explosion. Use liquid nitrogen in the condition constantly open to air. ULVAC CRYOGENICS INCORPORATED... - Page 8 (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 gas-based, and other corrosive gases. ULVAC CRYOGENICS INCORPORATED...
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Page 9: Disposal Considerations
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. We provide Safety Data Sheet (SDS) of our products upon your request. Please contact us when necessary. ULVAC CRYOGENICS INCORPORATED... - Page 10 This page intentionally left blank. ULVAC CRYOGENICS INCORPORATED...
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Page 11: General Description Of The System
Membrane nitrogen generator. Liquid nitrogen generator is hereafter referred to as “EMP-20W” in this manual. Helium gas compressor (model:UW404) This unit is in the right side of EMP-20W, compress Helium gas to supply to the cold head to provide cryogenic temperatures. -
Page 12: Component Description
2. Component Description ription Figure 2-1 Front view of EMP-20W Figure 2-1 Front view of EMP-20W ＲＵＮ／ＳＴＯＰ ＲＥＳＥＴ ＣＯＭＰ．ＡＬ． ＯＲ ８０ ＧＮ２ ＡＬ． ６０ Ｍａｉｎｔｅｎａｎｃｅ ＡＵＴＯ ＡＵＴＯ ４０ ＲＥＡＤＹ ＳＵＰＰＬＹ ２０ ０ Ｌ ＭＡＮＵ ＭＡＮＵ ｅｃｏ Ｔｅｍｐ． ＳＴＡＲＴ ＳＴＯＰ ｍｏｎｉｔｏｒ （ｏｐｔｉｏｎ）... -
Page 13: Front View Of Emp-20W (Figure 2-1)
In addition, the light will turn off when the machine is in “eco”-mode standby. RESET : This switch is used to reset the EMP-20W error. AUTO READY : Use this button when you wish to use automatic transfer function. - Page 14 Then RUN/STOP switch flickers. Maintenance : This light turns on in orange when it approaches the maintenance of S050 or UW404. Temperature meter :This shows the temperature inside the dewar. ULVAC CRYOGENICS INCORPORATED...
- Page 15 Ｈ ｅｌ ｉｕ ｍ ｇａｓ ｃ ｈａ ｒｇ ｅ ｐ ｏｒ ｔ Ｈ ｅｌ ｉｕ ｍ ｇａｓ ｃ ｈａ ｒｇ ｅ ｐ ｏｒ ｔ （Ｉ ｎｓｉ ｄｅ ｏ ｆ ａ ｐ ａｎ ｅｌ ） Figure 2-3 Inside view of EMP-20W front door and lower panel Ｌｅｖｅｌ ｓｅｎｓｏｒ ｃｏｎｖｅｒｔｅｒ...
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Page 16: Inside View Of Emp-20W Front Door And Lower Panel
Inside view of EMP-20W front door and lower panel (Figure 2-3) Liquid nitrogen dewar :Stores liquid nitrogen (Maximum 80 litters). Cold head (S050) :The cold head works in conjunction with the compressor to generate ultra-low temperature and liquefy nitrogen. The cold head needs maintenance services according to the time in operation. - Page 17 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 containers.
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Page 18: Flow Diagram
3. Flow Diagram . Flow Diagram This may vary depending on the customers’ specifications. This may vary depending on the customers’ specifications. Remote Cable Power Cable Figure 3-1 Flow Diagram Figure 3-1 Flow Diagram ULVAC CRYOGENICS INCORPORATED... -
Page 19: Specifications
Relative humidity: 80% or less (Non-condensation except on LN2 manual dispense port) EMP-20W must be installed indoors. EMP-20W must not be used in the atmosphere with organic solvents or corrosive gases. PSA (Pressure Swing Adsorption) nitrogen gas generator Type : GN-15i Dimensions : 480[W] ×620[D] ×1015[H]... -
Page 20: Utilities
5. Utilities Power source (for EMP-20W) Voltage : 200 VAC , 3-phase Power capacity : 30 A or above Power consumption : 3.3/4.1 kW ( 50/60 Hz ) Connection : Round type crimping terminal for M5 CAUTION Use Class-D earthing for safety. - Page 21 Cooling Water flow rate [L/Hr] At 30°C water temperature range Allowable range for cooling water Cooling water flow rate [L/Hr] Figure 5-1 Allowable range of cooling water for EMP-20W ULVAC CRYOGENICS INCORPORATED...
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Page 22: Power Source For Gn-15I (When Using Gn-15I)
Pressure : 0.5MPa – 1.0MPa Flow Rate : 120L/min or more : -17 °C or below (at the atmospheric pressure) Dew Point Air Quality : Oil-free NOTE: Use compressors equipped with a dryer. Supply dry air continuously. ULVAC CRYOGENICS INCORPORATED... -
Page 23: Installation
９ ３ ０ 背面 Back EMP-20W Top side ＥＭＰ－２０Ｗ上面 Front 正面 ３ ０ ０ ３ ０ ０ Figure 6-1 Maintenance space for EMP-20W (4) Lock the wheels to fix the equipment. ULVAC CRYOGENICS INCORPORATED... -
Page 24: Connection Of Gn-15I To Power Source
Connect the other side of the tube to "AIR IN" connector on the back side of IM-120. 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 remote cables of nitrogen gas generation system through these holes. - Page 25 (3)When the connection to the terminal board 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.
- Page 26 The screw size of the connector is R3/8. Place seal tape on the screw part. 2) Connect the cooling water joint to the cooling water supply side. 3) Connect the cooling water hose to the water supply side and the EMP-20W water IN connector, and water discharge side and EMP-20W water OUT connector.
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Page 27: Electric Wiring
7. Electric Wiring Electric Wiring Figure 7-1 Electric wiring-1 EMP-20W ULVAC CRYOGENICS INCORPORATED... - Page 28 Figure 7-2 EMP-20W Electric wiring-2 (Sequencer) ULVAC CRYOGENICS INCORPORATED...
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Page 29: Operation
(2) The air inlet and outlet opening of GN-15i is cleared. (3) Cooling water hose is connected correctly between EMP-20W and water supply. (4) The nitrogen gas tube is connected correctly between EMP-20W and the nitrogen generators. (5) The RUN/STOP switch of EMP-20W is turned off (lights off). -
Page 30: Shutdown
If liquefaction does not start and the COMP.AL. illuminates, the power supply may be connected in reverse phase. In such a case, turn OFF the breakers of main power source and the electric circuit of EMP-20W, alternate two cables out of three on the main power source, and turn on the power again. -
Page 31: Corrective Action In The Event Of An Error
Trouble Shooting”. 8.5.1 Corrective action when electric power failure occurs EMP-20W and GN-15i will be automatically restored in the 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. - Page 32 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.
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Page 33: Dispense Liquid Nitrogen Manually
Connecting liquid nitrogen supply flexible hose Connect the joint (coupler joint) of attached flexible hose to LN2 manual dispense port located at the front of EMP-20W. When connecting to the coupler joint, do so while pushing the outer ring part of the EMP-20W side. -
Page 34: Disconnection Of Flexible Hose
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. ring of the joint on the side of EMP-20W and pull out the flexible hose to disconnect. -
Page 35: Automatic Transfer Of Liquid Nitrogen
(3) When the level sensor of the target device detects the LN2 level reaches 100%, automatic transfer will be terminated. Automatic transfer will also be terminated when the RUN/STOP or AUTO READY of EMP-20W are turned OFF, the LN2 level of EMP-20W is 0%, or supply of nitrogen gas stops. -
Page 36: Eco Mode
The operation of EMP-20W will be turned to eco mode by pressing “eco” button in the The operation of EMP-20W will be turned to eco mode by pressing “eco” button in the operation panel. EMP-20W is operated as follows in eco mode. -
Page 37: Maintenance And Inspection
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. The operation light of GN-15i blinks when the maintenance time approaches. -
Page 38: Regular Customer Inspection
12.3 Regular customer inspection The EMP-20W is a high pressure manufacturing equipment. Please follow the laws or regulations of your countries or regions when operating and maintaining this equipment. ULVAC CRYOGENICS INCORPORATED... -
Page 39: Troubleshooting
The circuit breaker of Turn ON the circuit breaker. EMP-20W is turned OFF. The fuse of electrical circuit of Replace the fuse with a new EMP-20W is blown. one. If the fuse is blown repeatedly, please contact us. - Page 40 Cooling water supply is being Check the pressure and flow suspended. rate of cooling water and adjust them to the normal range. After adjusting, press RESET button of EMP-20W to restart. The ambient temperature is too Ventilate well around high. EMP-20W.
- Page 41 Amount of evaporation from Please contact us. dewar increased. EMP absorbs special gas such Please contact us. as helium. Ice or frost adheres to inside Please contact us. the dewar or around the cold head. ULVAC CRYOGENICS INCORPORATED...
- Page 42 Please contact us if any problem is found. (13) Other failures Please contact us. ULVAC CRYOGENICS INCORPORATED...
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Page 43: Accessories
Instruction Manual 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 The above accessories may be changed according to the directions by customers. ULVAC CRYOGENICS INCORPORATED... -
Page 44: Warranty
As a general rule, diagnosis of failure should be done on site by customer. However, ULVAC CRYOGENICS or our service network can perform this service for an agreed fee upon the customer’s request. There will be no charge if the cause of the breakdown is found to be a fault of ULVAC CRYOGENICS. - Page 45 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 NETWORK”...
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- Page 47 ULVAC CRYOGENICS INC. www.ulvac-cryo.com 1222-1 Yabata, 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.
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- Page 49 The model of PSA nitrogen generator has been changed. The format of Warnings and Cautions has been changed. 2016 / 09 / 14 2016SR03 “Disposal Consideration” has been added. 15. Warranty The company address has been changed. ULVAC CRYOGENICS INCORPORATED...
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