MICROFLOW

MICROFLOW

Kit

MICROFLOW

on the tripod

MICROFLOW

accessory for sampling in conduct not under pressure

Accessory for vertical position

MICROFLOW

on vertical suport

Pencil torch

Digital calibration kit

Microflow α has been developed for bio-aerosol (eg.: fungal spores, bacterial cells, etc.) sampling. This type of sampling allows to verify and measure the presence of microorganism potentially harmful, in order to perform an exposure assessment, and identify the source of pollution to adopt a containment plan.

Sampling principle: The sample is drawn through a pierced sampling head at constant speed for a variable time, depending on the nature of the environment to be monitored. The flow air is conveyed on the surface of a plate containing the culture media suitable for the microbiological research desired. Once the sampling is finished, the plate is removed and put under incubation. At the end of incubation time it will be possible to count the developed colonies for cm² and to evaluate the contamination level.

Application fields:

• security restricted areas
• hospital
• pharmaceutical industries
• food and dairy company
• air treatment systems
• water purification implants
• working environments subject to controls as required by D.L. 155/97 (HACCP) and D.L. 81/2008

 
The instrument has been developed in compliant with:

• norm UNI EN ISO 14698-1:2004
• method UNICHIM n°1962-2

TECHNICAL FEATURES

• Chassie in disinfectable polyurethane; furthermore, the inside of the chassis is clad with an antibacterial silver paint
• Alphanumeric display for the menu presentation and displaying all “step by step” operations. The different menus can be visualized in one of the following five languages: Italian, English, French, German and Spanish
• Display alarm warning (i.e. low battery level, etc.)
• Control panel with membrane keyboard
• Sampling head in anodised aluminium, that can be sterilised by autoclave, with twist lock fixing
       • Microflow α 60: sampling head with 219 conical holes (ø 1 mm)
       • Microflow α 90c: sampling head with 380 conical holes (ø 1 mm)
• Anodised and sterilisable aluminium plate support structure equipped with steel spring plate holders
  • Microflow α 60: can host a contact plate with diameter of 60 ± 2 mm
  • Microflow α 90c: can host a Petri dish with diameter of 90 ± 2 mm
  • Microflow α 60/90c: can host both Petri dish with diameter of 90 ± 2 mm and contact plate with diameter of 60 ± 2 mm, simply replacing the mechanical unit
• Bright ON/OFF LEDs for checking the instrument activity
• Flow rate: 30 – 60 – 90 – 100 – 120 l/min. The flow rates are calibrated using a calibration system, which has been developed by Polytechnic of Milan – Department of Aerospatiale engineering (report n°377/2003) and certificated by I.N.RI.M. of Turin (certificated n°10-0114-01/2010)
• Calibration control function (with dedicated key)
• The quantity of sampled air is programmable from 1 litre up to 2000 litres with steps of 1 litre. Furthermore, it is possible to set a manual sampling in case it is necessary to suck for an indeterminate period.
• Possibility to set a sequential sampling as indicated by guidelines of ISPESL
• Set of delayed start
• Remote control for the start of the sampling (able to pass through the glass)
• Memorize of 160 samplings (date, time, sampled volume and sampling flow rate) and USB port to download the data on the PC. WINDOWS compatible (in compliance with GLP – Good Laboratory Practice – and GMP – Good Manufacturing Practice)
• Rechargeable battery (without memory effect) with approximately 4 – 5 hours of autonomy (for a continuous sampling with a flow rate of 1,5 l/s)
• Battery charger (220 V) with a complete recharge in approximately 4 hours
• Possibility of power supply for short periods
• In compensated models: compensation of the flow rate at the variation of the battery supply voltage and contingent load loss due to plates with different dimensions from the calibration plate. With these models it is possible to use any kind of Petri Plate in the market. In case that the compensation system is not able to keep the flow rate constant, the system switches on overflow mode and the instrument will lockup.
• Dimensions: 310 x 130 x 170 mm (length x width x high)
• Weight: 1,9 kg
• Operating conditions:
     Temperature: 0 – 50°C
     Relative humidity: 20- 80% without condense

The kit is complete of:

• carrying case
• MICROFLOW air sampler
• additional alluminium samplig head (only for Microflowa 60 and 90c kit)
• battery charger
• IR remote control
• Torch pen
• User manual in English language
• Test report

ACCESSORIES

• Tripod  type Master, high max  3,66 m
• Stainless steal sampling head
• USB interface for PC data download, complete of software for the transmission and data manage in compliance with UNICHIM manual n°1962
• Accessory for per sampling in conduct not under pressure 
• Accessory for the positioning of the sampler  in vertical position 
• Digital calibration kit “Microcontrol” composed by a digital differential pressure indicator, connection tube and conversion table

Click here to download the brochure

FLOWIMPINGER

FLOWIMPINGER

Scheme

Components

Tangential nozzles

Sampling principle: The air is drawn through an external sampler (e.g. CF20 Light) at constant speed for a variable time (depending on the nature of the environment to be monitored) through three nozzles, tangentially positioned inside the bubbler containing an appropriate liquid medium. The tangential movement of the particles inside the FlowImpinger, retains the particles in the collecting liquid. The suspension obtained, after homogenization and dilution, it’s sown directly in an agar ground. The use of a collecting liquid helps the dispersion of any airborne microbial aggregates, improves the cultivability of the microorganisms, allows the dilution of the sample in case of high contamination.

Application fileds:

• security restricted areas
• hospitals
• pharmaceutical industries
• food and dairy company
• air treatment systems
• establishment for water purification sites
• working environments subject to controls as required by HACCP

 
TECHNICAL FEATURES

• material: glass sterilizable after use
• composed by three parts: input, the section with the three nozzles tangential and the collection bowl (20 ml).
• liquid collecting: water or other non-evaporable sterile liquids with viscosity up to 1000 times higher than water.
• range of use: 12,5 l/min
• sampling efficiency: about 100% for particles with size > 1 micron
  90% for particles with minor size (about 0,5 micron)
• sampling time: up to 8 hours
• dimensions: 22 x 5 cm (h x diam.)
• weight: 158 gr

ACCESSORIES

• Environmental sampling pump, mod. CF20 Light  (adjustable flow with flowmeter, with error ±5%, programmable or not)

MICROFLOW COMPRESSED

Plate positioning site

MICROFLOW COMPRESSED

Back view

Pencil torch

The Microflow Compressed has been specifically developed for bio-contaminant (eg: fungal spore, bacterial cells, etc.) sampling in compressed air or gas employed in manufacturing premises with controlled contamination areas. The aim of this sampling is to verify and quantify the presence of microorganism that may compromise the sterility of semifinished or finished products.

For operating with “Microflow Compressed” is enough to connect the sampler to the area of interest through a sterile tube. Check with the pressure gauge that the pressure of the incoming gas is not higher than 4 bars (in this case it is necessary to reduce the pressure with a regulator placed upstream of the inlet tap) not to cause an excessive impact stress on the microorganisms. Through the flowmeter it is possible to adjust the air flow to the desired flow rate. The air, through the diffusion funnel, will impact on the plate with agar medium simply pushed by the gas pressure itself

Application fields:

• security restricted areas
• hospital
• pharmaceutical industries
• food and dairy company
• air treatment systems
• water purification implants

 
The instrument is in compliant with:

ISO 8573-1/4/7

TECHNICAL FEATURES 

• Anodised aluminium gas diffusive head with conical suction holesi:
  Head of 60: 219 holes (ø 1 mm)
  Head of 90: 380 holes (ø 1 mm)
• Anodized aluminium plates support structure, autoclavable, with steel coupling springs
• Bayonet head coupling system
• Base and mounting bracket plate with blue epoxy powder coating
• Air diffuser funnel in black PVC
• Flowmeter range 50-400 litres
• Manometer
• Maximum compressed air input pressure: 4 bar
• Operating temperature: 10 °C – 40 °C
• Size: 400 x 210 x 250 mm (l x p x h)
• Weight: ~ 4 Kg
• Power supply: not required

If you need to record the sampling it is possible to use, in place of the housing of the plate, the sampler MicroFlow α.The sampling time in this case will be governed by the same Microflow α.

The kit may be required with:

• sampling head of 60 for contact plates (Ø 60 ± 2 mm)
• sampling head of 90 for Petri plates (Ø 90 ± 2 mm)
• both the sampling group heads

 ACCESSORIES

• Pencil Torch to sterilize the sampling head

  Click here to download the brochure