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Organic Vapor Sampler
Organic Vapor Sampler
The APM 856 Organic Vapour Sampler has evolved from the experiences gained and the feedback received from the users of the APM 850 and now provides a system which meets all important requirements for field measurements of gaseous organic pollutants in ambient air.
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- Flow Rate Range: 20 to 200ml/min continuously adjustable with a precision needle valve provided for flow control.
- Operation Mode: Continuous and compositing. In Compositing Mode, the user programs the ON & OFF cycle and the built in Microcontroller operates the system cycle of ON & OFF periods for a duration that is also programmable. So a long term averaged sample consisting of small spaced out samples is automatically collected. The instrument displays and records the total volume of air sampled.
- Charcoal Tube: The APM 856 is supplied with two types of charcoal tubes. Stainless Steel tubes provided with the instrument can be directly inserted into Thermal Desorbers attached to Chromatographs. After desorption the tubes can be re-activated for immediate re-use. Alternatively the user can order glass tubes packed with activated charcoal. The contents of the tube are removed from the glass tube after sampling for desorption in Carbon Disulphide. The tubes can be re-packed with fresh activated charcoal for re-use.
- Portable, battery operated instrument.
- Digital Flow Meter provides accurate flow reading in the 20-200 ml/min flow range.
- Built-in Flow Totalizer directly indicates the volume of air sampled in liters.
- Programmable Microcontroller based timer allows operation in cyclic manner for collection of composite samples.
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