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Analog penning gauge DHVE This is a cold cathode ionisation Gauge consisting of two electrodes anode and cathode. A potential difference of about 2.2 KV is applied between anode and cathode through current limiting resistors. A magnetic field is introduced at right angles to the plane of the electrodes by a permanent magnet having nearly 800 gauss magnetic field which will increase the ionisation current. This cold cathode ionisation gauge works on the principle of cold cathode discharge and ionisation. It is has an anode and a cathode electrode. An electrical potential of approx. 2.2kV is applied between anode and cathode. The electron emission will happen from the cathode (gauge head boby). Here a magnetic is assembled and the magnetic field is introduced. Due to which the ionization current is increased. Since the magnetic field is applied at right angle with the electrodes, the emitted electrons will take a helical path before reaching the anode. Thus following very long path, the chance of collision with gas molecule is high even at low pressures. The secondary electrons produced by ionisation themselves perform similar oscillations and the rate of ionization increases rapidly. This cold cathode penning gauge, with this principle of measurement of vacuum, it is designed to read from 10-2 to 10-6 m.bar. The high efficiency high voltage DC power supply, rugged electronics design high quality permanent magnets are part of the penning gauge. The ionization current is read from the front panel micro ammeter. Salient Features: • rugged and stabilised DC power supply for accurate reading • Easy maintenance of the sensor • Rugged design for no filament burnout • Instant start up • Standardised to heat and voltage fluctuations • Compatible out put for process set point controller
Digital pirani gauge DHVE DHVE Vacuum Pirani Gauge Controller displays vacuum pressure as measured from a S-PR-GH sensor tube. It displays vacuum measurements based on thermal conductivity of air or nitrogen. The Model DHVE controller covers the range from 0.001bar to 999 mbar, and controls relay with independent set point. ***The optional RS232 along with analog output 0 to 10V and 4 to 20 mA facility can be obtained on request Applications • Controlling high vacuum systems • Fore vacuum pressure monitoring • Safety circuits in vacuum systems • General vacuum measurement & control in the fine and rough vacuum range. • Measurement range 0.001 to 999 mbar • Easy “ATM” and “0” adjustment on the signal conditioner PCB • Space saving rugged design- 1/8 DIN console • Mounts in any orientation • Brass body measuring cell with metal-sealed feed through • With universal power supply – input voltage from 90 ~ 264VAC, frequency 47 ~ 440Hz • Integrated set point adjustment and relay output • Easy To Read 4 Digit Backlit Display • Dual Set Point Controller With 2 Relays (select model DPRG-2GH-SP) • Change Cable Length Without Re-calibrating upt o 8 mtrs
ANALOG PIRANI VACUUM GAUGE DHVE pirani gauges have very wide range of applications where the vacuum measurement needs to be carried between 0.5 mbar to 0.001 mbar. Working principle: The sensor tube of the pirani gauge head consists of a high temperature co-efficient resistance filament. The filament is heated with a constant voltage supply. The variation in pressure in vacuum line causes changes concentration of gas molecules present , in turn the variation in the thermal conductivity of the gas. Hence the heat loss of the electrically heated filament varies with respect to the pressure. This filament is constructed as an arm of the wheat stone bridge. A slight change in system pressure brings larger change in filament resistivity resulting in an imbalance of the bridge. this bridge imbalance current is a measure of pressure which is properly conditioned and displayed on the analog meter.
Vacuum Thin Film Coating Unit : DHVEoffers Vacuum Thin Film Coating Unit for Laboratory and Industrial Purpose.Essentially there are two types. Thin Film Coating Unit. RF & DC Sputtering Unit Vacuum Coater produces thin, homogenous, uniform, pure film coatings of various metals to achieve controlled effects in applications like optics, electronics, materials, thin film coating etc. DHVE offers Different size of Vacuum Thin Film Coating Unit Model 12A4, 15F6, 19F9 & 24F10 with facilities for thermal evaporation, Ion cleaning (bombardment), etc. with accessories for substrate heating, rotation, film thickness monitoring etc. This is a versatile unit both for production as well as research. Optional accessories increase the versatility of the unit making it suitable for a variety of applications, including optical thin film deposition, semiconductors, and micro-electronics. A high speed vacuum pumping system fully integrated with necessary piping and valves operated manually is rated for high gas through- put handling and to produce clean and high vacuum in the chamber. This Vacuum Coating system is wired to operate on 230 V AC, 50Hz single phase power supply / 415 V AC 3 phase power sup
Direct Driven Vacuum Pump Being a quality-conscious organization, we are engaged in manufacturing, exporting, trading and supplying a highly efficient Direct Driven Vacuum Pump. It is used in various medical applications such as radiotherapy, radiosurgery and radiopharmacy. It is designed using optimum quality components and advanced technology under the supervision of veteran professionals. It can be installed easily and is made available in a range of technical specifications. Our offered Direct Driven Vacuum Pump is highly acknowledged for its sturdy construction, optimum functional life and trouble-free operation. Salient Features Compact and light weight. Smooth and silent running, Gas Ballast system. Low Oil Charge. Low Power. High Ultimate Vacuum. Simple in operation. Maintenance free working. Low working temperature Anti - suck back system The choice of pump capacity depend on Type of application Volume to be evacuated Time allowed and degree of Vacuum Quantity and type of process gas and vapour Accessories Oil Mist Eliminators Moisture Trap Mechanical Isolation Valve Electro - magnetic Isolation - cum air admittance valve Long Nipple Different types of clamps Union Connector Any Other types of lifting required for Vacuum Pump as per Customer's specification Applications Used independently or in series with diffusion pumps, oil ejector pumps or booster pumps. Our high vacuum pump can serve in such application. Distillation processes Dehydration processes Filteration processes Exhausting of electronic tubes Vacuum metallurgy Vacuum sublimation Vacuum Impregnation Packing operations Bottles filling operations Thin film coating processes Refrigerator and air - conditioning compressor evacuation Freeze drying of food and drugs
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