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Liquid Nitrogen Generator
Instruction Manual
MP-300K
Export Control Policy
When applying a 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. MJCE003E, 2019MH01
ULVAC CRYOGENICS INCORPORATED
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Summary of Contents for Ulvac MP-300K
- 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. MJCE003E, 2019MH01 ULVAC CRYOGENICS INCORPORATED...
- Page 3 General Precautions (1) It is strictly prohibited to duplicate or reproduce this manual either partially or entirely, or disclose or transfer to a third party without written permission from ULVAC CRYOGENICS. (2) Information in this document is subject to change without notice, along with the specification change or improvement of the product.
- 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
PSA (Pressure Swing Adsorption) system nitrogen gas generator (GN-20i) ················································································· 5 Component Description ··································································· 6 Front panel of MP-300K (Figure 2-1) ············································ 7 Operation panel of MP-300K (Figure 2-2) ······································ 7 Inside MP-300K front door (Figure 2-3) ········································ 10 MP-300K Electrical circuit (Figure 2-4) ········································· 10 MP-300K Top (Figure 2-5) ·························································... - Page 6 10.2 Automatic transfer ··································································· 31 10.3 Time limit of automatic transfer ··················································· 31 Maintenance and Inspection ···························································· 32 11.1 Daily inspection ······································································· 32 11.2 Maintenance/inspection intervals ················································ 32 Troubleshooting ············································································ 34 Accessories ················································································· 38 Warranty ····················································································· 39 ULVAC CRYOGENICS INCORPORATED...
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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 system under the atmosphere of hydrochloric acid, chlorine gas, or other corrosive gases. ULVAC CRYOGENICS INCORPORATED...
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Page 9: Disposal Considerations
We provide Safety Data Sheet (called SDS) of our products upon your request. If you have any questions, please contact our Service Engineering Division or the nearest customer support center. ULVAC CRYOGENICS INCORPORATED... - Page 10 This page intentionally left blank. ULVAC CRYOGENICS INCORPORATED...
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Page 11: General Description Of The System
(2)Nitrogen gas supply (supplied directly from the customers’ nitrogen gas line). Liquid nitrogen generator is hereafter referred to as “MP-300K” in this manual. Helium gas compressor (UW701N) This unit is in the right side of MP-300K, compress Helium gas to supply to the cold head to provide cryogenic temperatures. -
Page 12: Component Description
ＳＴ ＡＲＴ ＳＴＯ Ｐ dispense port 液化窒素取り出し口 Figure 2-1 MP-300K Front ＲＵＮ／ＳＴＯＰ ＲＥＳＥＴ ＤＥＷＥＲ ＬＮ ２ ＣＯＭＰ．ＡＬＡＲＭ １００ Ｎ２ ＧＡＳ ＡＬＡＲＭ ８０ ６０ ＡＵＴＯ ＡＵＴＯ ４０ ＲＥＡＤＹ ＳＵＰＰＬＹ ２０ ０ ％ ＭＡＮＵＡＬ ＭＡＮＵＡＬ ＳＴＡＲＴ ＳＴＯＰ Figure 2-2 MP-300K Operation panel ULVAC CRYOGENICS INCORPORATED... -
Page 13: Front Panel Of Mp-300K (Figure 2-1)
RESET : This switch is used to reset the MP-300K error. AUTO READY : Press this button to use optional auto supply function. When you wish to auto-supply, turn this ON. - Page 14 The RUN/STOP button blinks at the same time. GAS ALARM. : Red light illuminates when the nitrogen gas generator stops due to faults, or when the supply pressure of nitrogen gas declines. The RUN/STOP switch blinks at the same time. ULVAC CRYOGENICS INCORPORATED...
- Page 15 液化窒素デュワー Dewar 窒素ガス流量調整弁 Nitrogen gas flow control ※１ valve (*1) 電気回路部 Electrical circuit コンプレッサーユニット Compressor unit （ＵＷ７０１Ｎ型） (UW701N) Figure 2-3 Inside MP-300K front panel Level sensor レベル計変換器 convertor シーケンサー Sequencer Ｆ－３ヒューズ F-3 fuse Ｆ－２ヒューズ F-2 fuse 電源ブレーカー Circuit breaker Ｆ－１ヒューズ...
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Page 16: Inside Mp-300K Front Door (Figure 2-3)
MP-300K Electrical circuit (Figure 2-4) Circuit breaker :Circuit breaker to protect the control circuit of MP-300K. This trips when an electric leakage or short circuit occurs. Fuse :AC protective fuse (F-1,2 : 2A) and DC protective fuse (F-3 : 2A). -
Page 17: Mp-300K Top (Figure 2-5)
MP-300K Top (Figure 2-5) Auto LN supply coupling :Swagelok coupling to connect the line for LN (Optional) auto supply. Note that the coupling is in extremely temperature during immediately after dispensing LN Supply signal connector :Port to connect to auto supply level indicator with (Optional) dedicated cable to input and output the signal. - Page 18 (Inside the panel) Figure 2-6 UW701N Front 通電表示灯 Power light ＰＷＲ ＳＴＳ １ ２ ＲＤＹ ３ ＲＵＮ アラーム表示灯 Alarm lights ４ ＣＨ１ ５ ＣＨ２ ６ ７ ８ ＣＯＭ ＲＳＴ リセットスイッチ Reset switch Figure 2-7 UN701N Status display ULVAC CRYOGENICS INCORPORATED...
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Page 19: Uw701N Front (Figure 2-6)
Power light : When the power is supplied to UW701N, this indicator illuminates red. Alarm lights : Eight display lights to display error states. RESET switch : Press this button to reset when an error of UW701N. ULVAC CRYOGENICS INCORPORATED... -
Page 20: Flow Sheet
3. Flow Sheet The figure below shows the flow diagram of MP-300K (fixed automatic type 2) Figure 3-1 Flow diagram ULVAC CRYOGENICS INCORPORATED... -
Page 21: Specifications
: Ambient temperature: 10 – 35°C Relative humidity: 80% or less (Non-condensation other than LN dispense port) MP-300K is intended for indoor use only. Do not use the equipment in the atmosphere with organic solvents or corrosive gases. PSA system nitrogen gas generator... -
Page 22: Utilities
5. Utilities Power source (for MP-300K) Voltage : 190-220 VAC , three-phase (50Hz) 200-230 VAC, three-phase (60Hz) Power capacity : 30 A or above Power consumption : 4.3/5.2 kW ( 50/60 Hz ) Connection : Round type crimping terminal for M6 CAUTION Use D-type earth ground for safety. -
Page 23: Power Supply For Gn-20I
Allowable range Temp. lower limit Flow rate [L/hr] Figure 5-1 Allowable range of cooling water for MP-300K Power supply for GN-20i Voltage : AC100V±10% (50/60Hz) single-phase Power capacity : 15A or above Power consumption : 0.7 / 0.8kW (50/60Hz) -
Page 24: Nitrogen Gas For Mp-300K (For Systems With N Gas Supply)
Nitrogen gas for MP-300K (for systems with N gas supply) Supply pressure : 0.3 – 0.99 MPa Flow rate : 20NL/min or more Purity : 99% or above Dew point : -60°C or below <NOTE> Supply N gas continuously. ULVAC CRYOGENICS INCORPORATED... -
Page 25: Installation
１ ０ ５ ０ Ｒｅａｒ ＭＰ－３００Ｋ Ｕｐｐｅｒ Ｆｒｏｎｔ ３ ０ ０ ３ ０ ０ Figure 6-1 Maintenance space for MP-300K (4) Lock the wheels to fix the equipment. ULVAC CRYOGENICS INCORPORATED... -
Page 26: Gn-20I Power-Supply Connection
(3) Turn ON the circuit breaker on the back of GN-20i. MP-300K utility connection Remove the back panel of MP-300K and locate a hole for utility connection at the bottom. Connect power cable, cooling water hose, nitrogen gas tube, and nitrogen gas generator remote cable through this hole. - Page 27 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 MP-300K water IN connector, and water discharge side and MP-300K water OUT connector.
- Page 28 Connection of nitrogen gas generator remote cable Connect the nitrogen gas generator remote cable to the remote connector located inside the MP-300K, and the signal connector on the back of the GN-20i. Attach the MP-300K back panel when all the connections are completed.
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Page 29: Electric Wiring
7. Electric Wiring MP-300K Figure 7-1 MP-300K Electric wiring-1 ULVAC CRYOGENICS INCORPORATED... -
Page 30: Mp-300K(Plc)
MP-300K(PLC) Figure 7-2 MP-300K Electric wiring-2 (PLC) ULVAC CRYOGENICS INCORPORATED... -
Page 31: Operation
When nitrogen gas supply starts, N ALARM light of MP-300K is turned off. Check that the center of the ball is at 20NL/min. When it is not at the right position, adjust with the flow rate control valve. -
Page 32: Shutdown
75L (75%), and stops at 100L (100%). This cycle goes on repeatedly. Shutdown When the RUN/STOP button is turned OFF (lights off), all the operation of MP-300K including LN production or supply stops. Caution is advised for items as follows. -
Page 33: Corrective Action In The Event Of An Error
“12. Trouble Shooting”. 8.4.1 Corrective action when electric power failure occurs MP-300K and GN-20i 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 LN... -
Page 34: Emergency Off
(4) Turn ON the RUN/STOP switch of MP-300K to restart. 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 MP-300K. To restart, turn the emergency off button to the right. CAUTION An emergency shutdown might damage the equipment. -
Page 35: Manual Dispense Of Liquid Nitrogen
Connect the joint (coupler joint) of attached flexible hose to LN supply port located at the front of MP-300K. When connecting to the coupler joint, do so while pushing down the outer ring part of the MP-300K side. Dispense liquid nitrogen To manually dispense liquid nitrogen, insert the head end of flexible hose in liquid nitrogen dewar, and keep pressing the MANUAL START buttons for 3 seconds. -
Page 36: Disconnecting Manual Dispense Flexible Hoses
Note that disconnecting hoses right after dispensing liquid nitrogen may result in damaging the O-ring inside the coupler joint. Disconnect flexible hoses in the opposite way of connecting. Push down the outer ring of the MP-300K side joint and pull out the flexible hose to disconnect. ULVAC CRYOGENICS INCORPORATED... -
Page 37: Automatic Supply Of Liquid Nitrogen
10.1 Inspections before automatic transfer Check the following before starting automatic transfer. (1) Level indicator cable is connected properly between the MP-300K and the level sensor on the auto transfer destination. (2) LN transfer piping is properly connected between MP-300K and the dewar in auto transfer destination. -
Page 38: Maintenance And Inspection
The pressure and flow rate of nitrogen gas are 0.2 MPa and 20NL/min. respectively. He gas pressure of UW701N is within appropriate range. When in operation: 1.90 – 2.30 MPa The alarm light of MP-300K is off. 11.2 Maintenance/inspection intervals Parts 10,000Hr 30,000Hr 40,000Hr 1 year... - Page 39 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 ULVAC CRYOGENICS INCORPORATED...
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Page 40: Troubleshooting
The main power cable is not Connect the main power cable (The RUN/STOP button connected. correctly. fails to light.) The fuse of MP-300K electrical Replace the fuse with a new circuit is blown. one. If the fuse is blown repeatedly, contact us. - Page 41 Supply the cooling water The cooling water is not sufficiently. Then, reset supplied, or the cooling water UW701N, and next, press RESET of MP-300K. flow rate drops. (STS 4-8 of UW701N lights up.) Helium gas pressure is Check helium gas pressure. Add declining.
- Page 42 Corrective Action (6) RUN/STOP button Dew condensation occurred in Check tube connection and flickers, and LN the level sensor of MP-300K. nitrogen-gas flow rate of production does not start. MP-300K and a nitrogen-gas (Alarm light is off) source of supply.
- Page 43 When the trouble occurs repeatedly, contact us. Evaporation in the dewar Contact us. increases. MP-300K inhales gases such Contact us. as helium. The purity of nitrogen gas is Check the purity of the nitrogen not sufficient.
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Page 44: Accessories
Instruction manual 1 (This book) GN-20i generator remote cable 1 (5m) Instruction manual For systems with nitrogen gas supply gas tube connector 1 (Screw size R1/4) NOTE: The carton content may vary depending on the customer specification. ULVAC CRYOGENICS INCORPORATED... -
Page 45: 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 46 If you desire the after service abroad, please contact ULVAC CRYOGENICS and consult us for details in advance. 14.2 Exclusion of opportunity loss from warranty liability Regardless of the gratis warranty term, compensation to opportunity losses incurred to...
- 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 Revision History Date Revision Contents 2017 / 1 / 25 2017.01 First edition 2019 / 3 / 14 2019MH01 Full-fledged revision ULVAC CRYOGENICS INCORPORATED...
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