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REALIZING YOUR IDEAS

REALIZING YOUR IDEAS. The Small Highly Productive Microwave speed wave MWS-2. Facts. Technical Data Design Temperature Control Control System Pressure Vessels Documentation Safety PC Software ! New ! Accessories Service. Technical Data. Microwave power: 1,000 Watt magnetron

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REALIZING YOUR IDEAS

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  1. REALIZING YOUR IDEAS

  2. The Small Highly Productive Microwave speedwave MWS-2

  3. Facts • Technical Data • Design • Temperature Control • Control System • Pressure Vessels • Documentation • Safety • PC Software ! New ! • Accessories • Service

  4. Technical Data • Microwave power: 1,000 Watt magnetron • Frequency: 2,450 MHz • Unpulsed between 400 and 1,000 Watt • Integrated control system • RS-232 interface (documentation with external PC) • Oven: 26 Litre • Weight: 14 kg • 230 Volt, 50/60 Hz

  5. Design • Small, compact tabletop instrument • Stainless steel housing • Integrated suction system • Non-Contact IR-temperature measurement of all samples • Magnetron with 1,000 Watt • Unpulsed between 400 and 1,000 Watt

  6. Patented, non-contact IR-temperature measurement of all samplesNo contamination Control of all vessels Increased savety • Detection of all sample temperatures • No time delay through heating of sensors • No connection of sensors • Maintenance-free

  7. Frequency range of BERGHOF mid-IR technology IR-spektrum of TFM Heat radiation of sample (black body) (2,5 µm) (10 µm)

  8. IR-measurement at wavelength, where TFM does not absorb IR-radiation • Thermal radiation of the vessel is filtered out TFM Heat radiation of vessel surface Heat radiation of sample IR-Sensor FilterIR-radiation

  9. inside temperature sample temperature (mid-IR sensor) outside temperature of vessel (IR-sensor) Broadband Technology BERGHOF mid-IR Control • No temperatures detectable in the first 7-10min. by broadband technology • No detection of exothermic reactions by broadband technology

  10. Integrated control system • English • Simple, self-explaining operation • Real-time display of highest sample temperature • Temperature control • 6 pre-installed applications • One free programmable application • Sample concentration with additional temperature control

  11. Digestion Vessels 1 - 10 Mikrowavepower TemperatureMeasurement Control by Tmax Controller  Microwave Power is permanently controlled by temperature of all samples Real-TimeDisplay External PC

  12. Control System - Keypad and Display Berghof MWS2 select prog! parameter change next step new program programm keys programmstop / start

  13. Berghof MWS2 select prog! Berghof MWS2 press start programm keys programmstart Control System - Selection of Applications / Routine Start

  14. step1: temp 150°C increase/decrease temperature, time or power step1:time 5 min next step or item step1:power 40 % select programm prog Control System - Programming a Application repeat for step 2 and 3

  15. 1 04:29 80% T=low>>150°C programmstop / start Control System - Real Time Display of Sample Temperature

  16. Control System - Documentation with external PC

  17. Mat. Vol. P-test P-max. T-max. T-max. No. • (continuous)(short time) • DAP-60K TFM 60 ml 60 bar 40 bar 220°C 260°C 10 • DAQ-10 Quartz 10 ml 100 bar 75 bar 220°C 260°C 24 • DAC-10 TFM / Ceramic 10 ml 100 bar 75 bar 220°C 260°C 24 • DAK-70 TFM / Ceramic 70ml 150 bar 100bar 220°C 260°C 5 Pressure Vessels - Survey

  18. Pressure Vessels DAP-60K • Completely made of TFM • Rupture discs as overpressure safety device • Simple handling

  19. Pressure Vessels - Handling DAP-60K • Weighing of the sample • Addition of reagent • Insert the lid / visual check of the rupture disc • Screw on the cap finger-tight • Insert the vessel into the rotor • Put the rotor into the microwave • Select an application • Start the microwave • Cooling of the vessels (approx. 20 min., possibly outside microwave) • Open the vessels manually • Transfer the solution

  20. Visual check • Lid + Rupture disc • Insert the rupture disc Pressure Vessels - Handling DAP-60K

  21. Insert the lid • Screw on the cap finger- tight Pressure Vessels - Handling DAP-60K

  22. Insert vessel into rotor • Close unused positions Pressure Vessels - Handling DAP-60K

  23. Loading microwave with rotor • Connect exhaust tubing Pressure Vessels - Loading of Microwave

  24. Open the vessel Pressure Vessel - Handling DAP-60K

  25. TFM-lid • Rupture disc • Retainer ring • Insert the rupture disc • Insert into TFM-lid Pressure Vessels - Handling DAQ-10

  26. Weighing of sample • Add reagent • Expand sealing lip Pressure Vessels - Handling DAQ-10

  27. Insert lid into quartz vessel • Put in the rotor • Close finger-tight Pressure Vessels - Handling DAQ-10

  28. Close PP-box • Insert into PP-box Pressure Vessels - Handling DAQ-10

  29. Pressure Vessels - Handling DAK-70 • Completely made of TFM with ceramic pressure jacket • TFM-liner • Rupture discs as overpressure safety device • Simple handling

  30. Insert the lid • Install the support ring • Screw on the cap finger-tight Pressure Vessels - Handling DAK-70

  31. Pressure Vessels - Handling DAK-70 • Weighing of the sample • Addition of reagent • Insert the lid / visual check of the rupture disc • Screw on the cap finger-tight • Insert the vessel into the rotor • Put the rotor into the microwave • Select an application • Start the microwave • Cooling of the vessels (approx. 30 min., possibly outside microwave) • Vent the vessel with the pressure relief valve • Open the vessels manually • Transfer the solution

  32. Safety Concept Avoiding damages thorugh innovative instrument concept • pure TFM-vessels no explosions possible chemicaly absolutely inert (PEEK and Kevlar don´t comply with this) • suction system no acidic vapours in the microwave oven • Ban of Solvents absolut safety is impossible by ventilation of the oven several explosions were reported worldwide • IR-Temp.-Measurement control mechanism reacts on fast exothermic reactions no leakages on sensing system operation is not influenced by acids and microwaves • Metallic rupture discs guarantees fast and reproducable pressure relief, thanks to metallic material and high diametre

  33. Safety • Integrated suction system • Shut-down when the door is unlocked • Control of the sample temperature in all vessels • Shut-down when a sample is overheated • Shut-down after burst of a rupture disc • Rupture discs in all vessels • Controlled ventilation of vessels during opening

  34. Safety - Vessel material TFM Experiment: • Blocking the rupture-disc • Digestion at about 80 bar • Thereby the pressure limit was exceeded by factor 2 Result: • Vessel didn´t get untight • TFM gets weaker and deformable at higher temperatures. Pressure vessels don´t tear or explode and are very safe therefore.

  35. Control with external PC New ! Enlarged operating features • Temperature programs with up to 5 steps • Control of the turntable • Real-time Display of sample temperature (Maximum) • Documentation of all digestion data (temperature curve, date, time, program etc.) • Comments

  36. Control with external PC New ! System requirements • 500 MHz Pentium processor • Windows® 2000, XP, NT or 98 • untaken serial interface COM1 or COM2

  37. Control with external PC New ! Microwave power Set temperature profile Sample temperature

  38. Accessory • Unit for sample concentration

  39. Cost-Benefit Analysis Avoiding subsequent costs through innovative instrument concept • Pure TFM-vessels few consumables (rupture discs, lids) extremly long service life, mostly longer than 5 years • Sensor technology no consumables like sensors, seals etc. Example for 2000-3000 digestions per year: • 100 rupture disc + 50 lids per year 168.- € + 680.-€ = 848.- € Example (competition): • Set of pressure jacket, liner and lid per year 10x ca. 425.- € = 4,250.- € (plus rupture discs and lids) You save approx. 3,400.- € per Year

  40. Accessory - Subboiling • Subboiling BSB 939-IR • Contact-free infrared heating • Completely made of TFM and PFA Vol. Time Water 1.8 l 24 h HNO3 1.2 l 24 h HCl 1.1 l 24 h HF 1.0 l 24 h

  41. Accessories - Subboiling • HF-purity starting with HF p.a. • Concentrations in µg/l (=ppb) Ag <0.05 Al 0.2 As <0.05 Au <0.05 Ba <0.05 Be <0.1 Bi <0.05 Ca 0.1 Cd <0.05 Co <0.05 Cr <0.05 Cu <0.05 Fe 0.25 Ga <0.05 Ge 0.4 In <0.05 K 0.6 Li <0.05 Mg 0.08 Mn <0.05 Mo <0.05 Na 0.6 Ni 0.3 Pb <0.05 Sb <0.05 Sn <0.05 Sr <0.05 Ti <0.1 V <0.05 Zn <0.05

  42. Service • Accredited application laboratory EN ISO/IEC17025:2000 • Collection of applications • Work-Shops and personally demonstrations • Specifically trained dealers and service technicians • Costumised solutions • Quality management system EN ISO 9001:2000

  43. Your Benefit • Simpliest handling of vesselsNo connection of sensors Simple vessels, made of only few parts • Wide selection of different pressure vessels • High sample throughput (up to 24 samples per run) • Permanent closed vesselsNo loss of volatile elements • Temperature control of all samples • Reproducable digestions through temperature-control system • Very simple, self-explaining operation • Massive, durable pressure vessels made of TFM • Inexpensive

  44. REALIZING YOUR IDEAS Many thanks for your attention!

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