PRIMA Handy Air Sampler, Automation Grade : Semi Automatic

Introduction:

The personal air sampler model pas25 consists of a mini pump driven by a d.c. motor working on a 6 volt dc rechargeable battery. this work continuously for up to 10 hours between charging. if required, the air sampler can be used, while charging by 220 v ac mains supply. the screw arrangement allows variation of flow rates between 0.5 and 3.0 liters/minute. a flow meter is mounted on the face of the box. pulsation dampers are internally fitted on the inlet and outlet gas circuit to smoothen the air flow. the pump unit is fitted into a m.s. case of compact size. the sampler unit can be kept on a flat surface for stability at the breathing zone level of the worker to take stel (15 mins.)/twa - tl v (8 hour) measurements. the air sampler is supplied with a battery charger in a carrying case.

Applications :

these instrument is applicable for three things, 1) twa-tlv/stel, 2) dusts, fumes, mists and 3) gases, vapours and solvents within factories, plants, government organization, research institutions etc.

1) twa-tlv/stel limits values are statutory requirements. by sampling the breathing air, the short term exposure limit can be determined. otherwise using the sampler for an 8 hour shift the twa - tlv value can be ascertained for the contaminant.

2) dusts, fumes, mists for collection of toxic dusts e.g. arsenic, cadmium, beryllium, carbon black, cobalt, copper, lead, manganese, nickel rhodium, silver or tin, the use of a filter is the simplest. many oxides or metal fumes, produced by casting, welding or burning, may be collected on a filter for analysis.

3) gases, vapours and solvents using the sampler, a convenient collecting method is by adsorption tubes or detector tubes suitable to the gases & vapors to be analyzed or de-adsorbtion for chromatograph analysis of the adsorbent. also, for adsorption into a liquid contained in a bubbler for chemical analysis

Technical Specifications :

Parameter          Description

Range               0-2.5l/min with 0.5 lpm graduation

Rating               8 hours after full charge

Flow variation    0.5 to 2.5 lpm

Power                rechargeable 6v battery

Recharging         on 220 vac mains

Size                   110 x 70 x 125 mm

Weight               1.4 kg. approx

Features :

• Low  cost
• Robust
• Portable and small
• 8-hour operation on one charge.
• Rechargeable battery operated
• Power on, low battery, charging indicators.