Presto Stantest Private Limited

Dlf Industrial Area, Faridabad, Haryana

Polariscope is an optical device and used for the defect identification in PET preforms. Preforms develop internal defects due to external strain. These defects might create weak points when blown moulded into bottle. To avoid this, the preforms are tested prior mass production. The device has an incident light and polaroid lenses. The incident light passes completely through the test medium without any refraction. As a light encounter a defect, it changes its path doubly and create different patterns of light.

Due to polaroid nature of lenses, the birefringence of light forms. This birefringence creates different patterns depending upon the type of the defect. The pattern can be matched with the defect chart to identify the defect. The sample is tested at two different angles, 45 and 90. The strain viewer can be used for PET preforms and glasses also. It is equipped with two types of incident light Monochromatic and Sodium. The device can be connected with the computer for defect identification and report generation.

• The Polariscope computerized model is supplied complete with:
• Viewing Area: 260 * 240 mm
• Display: Pictorial through Inbuilt Software
• Power: 220V, Single phase, 50 Hz
• Lights:

• CFL Light
• Sodium Light

• Standard Template Measuring Angle: 45 and 90

Prestos Humidity Test chambers can aid reliable testing by subjecting various products to environmental extremes like humidity, temperature.

PrestosHumidity/Conditioning chamberis able to provide quicktemperaturechange rates and humidity conditions required for analyzing the effects of ecological changes on the product. The product helps to judge the reliability and quality of various products like plastics, rubbers, electronic goods, automobile parts and semiconductor devices, etc. The procedure of theequipmentrelies on the principle of accelerated environmental testing.

Prestos conditioning test chambers are ideally designed with sophisticated technology to maintain designated temperature and humidity at set points controllable by the user at the front control panel. The machine is equipped with highly insulated glass wool Ergonomic that ensures lowest heat loss ratio. The machine has completely digital controls.

Air is constantly circulated throughout the chamber which can be easily monitored from the transparent glass for comparison to set points and can be treated if necessary. Heating is done by the electric heaters that can turn on and turn off for temperature control.

• The inner body of thechamberis made up of Stainless Steel and the outer body is of Mild Steel duly powder coated.
• The inner dimension of thelaboratory instrumentis 18 x18 x 28. (Other Sizes on Request)
• The temperature range can be set from Ambient to 65 Degree Celsius.
• Ambient to 95 % humidity can be maintained in the chamber with the accuracy of +2% RH.
• Temperature range can be set from Ambient to 65C ( 3C)

• Thetesting instrumentis equipped with the Digital Controller for measurement of accurate temperature and proper humidity control.
• Thechamberis equipped with humidity sensor for accurate results.
• Touch sensitive controls for ergonomic relieve.
• It requires low maintenance cost.
  • Temperature controls through PT-100 sensor
  • Alarm system with buzz sound at test end process
  • Highly accurate test results under uniform temperatures and humidity levels in the chamber
  • Digital Control for Humidity and Temperature
  • High Grade imported Glass Wool insulation
  • Maximum Thermal Efficiency by insulation means.
  • SSR-based heaters
  • Digital Preset timer with LED Display
  • Inbuilt Auto tuning function
  • Water Level Indicator
  • Equipped with rapid air circulation fan for uniform and homogenous heating , cooling, humidity, dehumidity inside the chamber
  • Inbuilt Calibration features with reference to master PID controller
  • Setting to RTD PT-100 sensor through advanced PID controller
  • Auto-stop feature to stop machine at set time
  • Time totalizer to calculate the no. of Hours run by the instrument

Presto presents Polariscope Strain viewer, a high-quality testing instrument that is used for checking the quality of PET preforms. It works on the principle that any change in the refractive index of a material indicates strain in that material which affects the quality of the material.

Presto offers two models of Polariscope for preform equipment namely, Polariscope DX and Polariscope Computerized that are made from best quality of raw materials for long service life and high level of precision. Presto offers a variety of sizes and designs Polariscope for glass and preform according to requirements of our clients.

Prestos Polariscope is a strain viewer for glass and PET Preform that is provided with a metallic base and is painted in autumn gray and blue colour. Along with that, it is also provided with zinc/chrome plating which provides the equipment, excellent resistance from corrosion. A user manual and a calibration certificate are provided with the instrument which is traceable to Labs approved by NABL. With these features and specifications, Presto offers a robust and precise solution to check the quality of the PET preforms used in plastic industry and that also at very competitive prices.

Hot Air Oven is a laboratory test equipment widely used for sterilization. It makes most favourable use of dry heat to cleanse. Presto is engaged in manufacturing and exporting superior quality Lab Hot Air Oven which is extensively demanded in laboratories for testing.

PrestosLaboratory Hot Air Ovenfunctions electrically; a fan is duly installed in the machine that ensures a uniform temperate inside the chamber. The ovens have quality insulation with top quality glass wool insulation, which is supplied tofulfil various industrial requirements.

Utilizing forced air circulation, hot air ovens are used in the laboratory to perform the effect of ageing on various properties of any type of materials.

Prestos Hot Air Oven is equipped with a double-walled chamber. The inside wall of the chamber is fabricated with heavy stainless steel, and the outside wall is made of mild steel duly powder coated. Impartial mineral glass wool insulation, which is incorporated within the walls ensures that the cabinet is well insulated.

The heaters are mounted in the ribs at the bottom of the machine and on the sides of the chamber. It is also equipped with an air circulation fan and a hot air blower that ensures constant temperature distribution. A special port is installed in the chamber with adjustable openings that have been provided in the oven for introducing an external sensor or for change of air. The control panel of the machine is provided on the side of the main body to support better visual monitoring. Samples for testing can be placed on the S.S. trays, provided with the machine for comfortable storage of test specimens.

• The size of the oven cabinet is 18 inch x 18 inch x 18 inch. (Other Sizes on Request)
• Temperature can be set from ambient to 250 Degree Celsius with the resolution of 1 degree Celsius.
• Thetesting equipmentrequires a power supply of single phase, 230 Volts, 50 Hz.
• The machine is equipped with Special Digital PID controller for controlling machine temperature with dual display of actual value and set value.
• Display: LED (Digital)Accuracy: 2CNo. of Sample racks: 2

FEATURES

• Thetesting instrumentis equipped with Double walled thermostatically controlled, inner cabinet made up of stainless steel or aluminium and outer walls with mild steel sheet.

• Temperature controls through PT-100 sensor
• Highly accurate test results under uniform temperatures in the chamber
• High Grade imported Glass Wool insulation
• Maximum Thermal Efficiency by insulation means.
• Advanced Digital Microprocessor based PID based temperature controller
• Inbuilt Auto tuning function
• Provision to set PV and SV value
• Equipped with rapid air circulation fan for uniform and homogenous heating and maintaining temperature inside the chamber
• Vent for forced air changes and calibration facility
• Inbuilt Calibration features with reference to master PID controller
• Bright LED display
• Setting to RTD PT-100 sensor through advanced PID controller

Optional: Digital Timer

Moisture analyzer is an ideal instrument used to measure moisture and the amount of dry mass as well as the consistency of fixed and volatile substances with high accuracy. The testing instrument is highly used in the industrial sector to analyze adhesive materials, woods, mass, dusts for the production and control of materials. The measuring system of moisture analyzer is integrated with all the advanced properties of modern balance. In addition to this, Presto offers an extensive range of testing machines for moisture determination.

Prestos Moisture Analyzer is fitted with halogen heating with precision weighing technology to effectively, quickly and accurately assess moisture content of the test sample under the test procedure. It is perfect for chemical, pharmaceutical and research industries for getting accurate and consistent results.

Moisture Analyzer MB-45 is a unique product used in labs and in production units for following quality control measures. The instrument is equipped with a round halogen lamp along with ramped voltage that permits uniform heating of test specimen to 200 degree Celsius. The round lamp mounted in the machine ensures better accuracy by heating the test specimen consistently with controlled voltage that enhance to lamp efficiency and directly enhances the life of the bulb.

• It offers quick and easy procedure for testing.
• It also provides multiple ventilation options that suit many moisture analysis applications.
• It is inbuilt with 50 drying programs in memory that enhances efficiency.
• It offers accurate temperature programming that provides high quality results.

Hot Water Bath Digital is an efficient testing instrument which is used to evaluate the behavioural changes or any sort of damages in the product, component or raw material. It quantifies the actual working performance of the testing specimen when kept in rising temperature. It is also used for incubation purpose in laboratories. Heat sensitive samples are often tested in Hot water bath chamber. This instrument is utilized majorly in textile and microbiology industries. It can also be utilized to apply heat to particular chemicals which may catch fire if come in contact with direct dry heat.