MVE 21135284 Скачать руководство пользователя страница 9

MVE FUSION Quick Reference Guide 

 

9 – 21205647 D 

 

Fusion Dewar Plumbing Connections

 

 

Procedure for the First Fill

 

1.

 

Do not power on the Fusion until all steps are followed. 
 

2.

 

Make sure to have two, 230-liter liquid nitrogen cylinders at 22-35PSI for the first fill. 
 

3.

 

Load racks and empty boxes or alternate inventory systems into the MVE Fusion.           

NOTE: VERY IMPORTANT TO ADD RACKS AND BOXES BEFORE FILLING. 

 

 
CAUTION: Venting may occur which will result in a loss of cryogen inside the pressure vessel 
if warm racks are installed after the Fusion’s first fill and/or if more than 1, 2, or 3 warm 
racks are installed during its subsequent operation. Be prepared to have a 230-liter liquid 
nitrogen cylinder @ 22-35psi to refill pressure vessel if this occurs. 

 

Vent Valve 

Pressure Relief Valve 

Fill Valve 

Содержание 21135284

Страница 1: ...MVE Fusion Series...

Страница 2: ...y Chart Personal or an authorized MVE Distributor per the MVE Fusion Technical Manual PN 20994124 Product Identification Safety 3 Display Control Panel 7 Back Panel Electrical Physical Connections 8 D...

Страница 3: ...al Conductivity Gas 25 83 mW m K Heat of Vaporization Liquid 198 38 kJ kg Density 1 atm Liquid 1 782 lbs L 807 4 g L 808 6 kg m3 Liquid Nitrogen Safety Transferring LN2 and operating the MVE Fusion sh...

Страница 4: ...aseous nitrogen when evaporated The two most important safety aspects to consider when handling LN2 are adequate ventilation and eye and skin protection Although nitrogen gas is non toxic it is danger...

Страница 5: ...asphyxia such as headache drowsiness dizziness excitation excess salivation vomiting or unconsciousness are observed remove to fresh air If breathing has stopped give artificial respiration CALL A PHS...

Страница 6: ...ng Asphyxiating Atmosphere Indicates the potential for an oxygen depleted atmosphere due to nitrogen vapor Take care to operate device in a well ventilated area Warning Electricity Indicates a potenti...

Страница 7: ...Display A Liquid Crystal Display LCD shows the value of all the current conditions including Freezer Temperature and LN2 level The display also shows any current alarm conditions that may exist RTD Pr...

Страница 8: ...nel Electrical Physical Connections 1 RTD Temperature Probe Connection 2 Global Alarm Contacts These connections monitor All Alarms 3 Service Serial Port 4 Service Serial Port 5 Input Power 6 Main Pow...

Страница 9: ...lternate inventory systems into the MVE Fusion NOTE VERY IMPORTANT TO ADD RACKS AND BOXES BEFORE FILLING CAUTION Venting may occur which will result in a loss of cryogen inside the pressure vessel if...

Страница 10: ...2 to the Fusions inlet valve using the supplied transfer hose with the cane oriented in the vertical position so the pressure relief valve can vent downwards NOTE One temperature probe will be factory...

Страница 11: ...installed in the secondary sensor tube the tube should remain plugged with the factory installed plug 5 Shut off the two isolation valves located underneath the shroud on both sides of the liquefier 6...

Страница 12: ...at room temperature for the first fill charge fill the internal sample storage area with 20 30 liters of LN2 through the neck of the tank using the second LN2 supply tank with another transfer hose h...

Страница 13: ...e 50 PSIG inside of the storage tank As the internal chamber and storage racks come down to temperature the relief events will decrease 15 Once all the steps above have been completed the MVE Fusion c...

Страница 14: ...he factory using a two point low temperature range calibration method This calibration method provides a level of accuracy of 1 8 F 1 C when operating at altitudes between 1000ft to 1500ft 305m to 457...

Страница 15: ...erature is out of the allowable range REJECT T OUT OF RANGE Cryocoolers reject temperature is out of the allowable range TEMP A OUT OF RANGE RTD temperature out of the allowable range TEMP A SHORT Iss...

Страница 16: ...MVE FUSION Quick Reference Guide 16 21205647 D NOTES...

Страница 17: ...change the prices materials equipment quality descriptions specifications and or processes to its products at any time without prior notice and with no further obligation or consequence All rights no...

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