PDS user manual
Contents
1. User manual Pneumatic Drive System B EUSA a FRANCE pm BE LSA nuc Pneumatic Drive System for the MDAC high pressure cell PDS 200 The Pneumatic Drive System is used to control the force applied to the MDAC anvil by varying the pressure in its membrane The small size weight and portability of the PDS allow its use in a variety of environments Features Ref PDS 200 0 to 200 bars Pressure range Digital Pressure display with a 0 01 bar resolution Fine and continuous Pressure control with 2 valves IN and OUT 0 4 Bottle filled with helium 200 bars allows for many pressure cycles before reloading High pressure connection for the output on the rear panel Nova Swiss female for 1 16 capillary High pressure connection for loading on the rear panel Tube 1 Gyrolock female Portable Size 260 x 150 x 400 mm Weight 6 300 Kg The PDS can drive any MDAC cell with specific high pressure fitting PDS Principle Bottle From loading To MDAC membrane loading system 1 16 capillary valve l fi eee se fe MW mH HOH OH NN x PDS Pressure sensor ballast i volume YO x 7 a g MYN Sees Eee MR C Bottle Valve for Opening Digital pressure Pressure loading the IN AS OUT display control ballast volume valve E valve Leakage control BETSA Zl2 bis rue Ambroise Croizat 77370 NANGIS FRANCE T l 33 1 64 08 27 33 Fax 33 1 64 08 32. H This tap connects the PDS sample bottle to the loading equipment Increase slowly to prevent excessive temperature increasing of the sample bottle the pressure of the loading equipment until the pressure in the PDS has reached the value you want lt 200 bars Turn off the tap H The gas reloading is now achieved Disconnect your loading equipment Be sure their is no pressure in the circuit before disconnection 2 FUNCTIONING Pressure connection G to MDAC Female Nova Swiss connector for 1 16 capillary Turn ON valve F for reloading internal ballast volume from internal tank open reverse clockwise Turn OFF valve F Turn ON valve B slowly to increase pressure in MDAC membrane pressure Digital display of pressure applied to MDAC in bars D Turn OFF valve B to maintain the pressure in MDAC membrane pressure Turn ON valve C slowly to decrease pressure in MDAC membrane pressure Visualize the liquid on tube E small bubbles 1 2 3 4 5 6 7 8 SAFETY INFORMATION Maximum Bottle Pressure 200 bars 2900 psi Safety Factor 1 5 For reloading a PDS one may either l use a standard commercial bottle retailed at 200 bars 2900 psi this is the ideal way to reload a PDS NEVER USE ANY BOTTLE PRESSURIZED ABOVE 200 BARS 2900 PSI OR 2 use of an external system Be absolutely sure that in no circumstances the pressure exceeds 200 bars 2900 psi For this reas
3. 3 51 Email betsa wanadoo fr DESCRIPTION Front panel Rear panel Manometer 0 to 250 bars to visualize the pressure in the internal tank Button to control the MDAC membrane pressure IN Button to control the MDAC membrane pressure OUT Digital display of pressure applied to MDAC in bars Tube with liquid to visualize small bubbles very small pressure decrease controlled by C valve ON OFF valve for reloading internal ballast volume from internal tank open reverse clockwise Pressure connection to MDAC Female Nova Swiss connector for 1 16 capillary ON OFF valve to reloading tank Pressure connection to loading system Female Gyrolock connector for 1 4 tube Electrical connection 220 V 50 60 HZ Fuse lA TZQATDMOAWS From loading system I To MDAC membrane Tank loading 1 16 capillary G valve H Jl aa none T e JN PDS Pressure sensor ex o o N lt O Tank pressure Digital pressure control A Valve for Opening leakage loading the IN valve OUT valve display D ballast volume B C F Leakage control E PROCEDURES 1 RELOADING SYSTEM Turn off clockwise the taps B C and F Connect your gas pressurising equipment to the connector I Adjust the pressure of the loading equipment to a pressure slightly higher than the pressure in the PDS control the value on manometer A Then turn on reverse clockwise the tap
4. on the external system should feature a pressure relief valve to ensure that this limit is never exceeded THE USE OF A COMPRESSOR IS STRICTLY PROHIBITED FOR RELOADING A PDS Safety Valve PLEASE NOTE THERE IS NO BUILD ON PRESSURE RELIEF VALVE INSIDE OF THE PDS Bottle supply The internal 0 4 liter gas bottle is to be inspected every 10 years BE LSA FRANCE Bureau d Etudes Techniques Scientifiques et Appareillages TEL 331 64 08 27 33 DT BETSA FAX 331 64 08 33 51 Z I 2bis rue Ambroise Croizat LY contact betsa fr F 77370 NANGIS CE
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