F&J SPECIALTY PRODUCTS, INC.

- Model GAS-60810-MHV - Mega High Volume Air Sampler System

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The GAS-60810-MHV Series Air Sampling Systems are designed for remote unattended continuous air sampling applications. The GAS-60810-MHV Series Air Samplers feature a brushless motor with electronic motor speed control that maintains a user selectable flow rate. The flow rate range attainable through the filter media is dependent upon the air porosity of the filter media. Flow rates as high as 170 CFM (289 m3/hr) are attainable with glass fiber filter media. The GAS-60810-MHV Series design accommodates rapid field service and component replacement.

For durability and weather resistance, the system is housed in a freestanding powder coat painted aluminum enclosure. The sample air is drawn in under the eaves of the hinged lid from all four sides and is exhausted near the bottom of the enclosure. The locking swing door on the enclosure provides convenient access for servicing the equipment inside. A lockable latch on the top cover restricts unauthorized tampering with the filter holder.

The electronic flow control measurement sub-system of the GAS-60810-MHV Series provides an operator selectable reference standard corrected flow measurement and a constant flow of air through the filter medium. The air velocity is measured by a precision-machined DP sensor. The controller can be readily set to any sampling flow rate between 50 and 175 CFM (85-300 m3 /hr). The flow rate obtainable depends on the filter paper air resistance and dimensions. The bright VFD readout displays multiple air sampling information including current flow rate, average flow rate, current temperature and totalized volume. The filter holder can be custom designed to accommodate many large filter size and type. The GAS-60810-MHV standard model utilizes an 8”×10” (20.3×25.4 cm) filter. Software is available to download airsampling data via an RS-232 port. The software provides a monitoring report, file creation and setup via a laptop computer

  • Precision machined DP flow sensor
  • State-of-the-Art electronics
  • Vacuum fluorescent display; 4 lines×24 characters
  • Flow rate and Volume measurements corrected to operator selectable Reference Temperature and Pressure
  • Automatic flow control
  • Operator selectable units of measurement
  • Dual RS-232 communication ports
  • Flow rate accuracy: ±3.0% Full Scale
  • Auto zero calibration feature of flow sensor
  • Continuous or periodic sampling mode
  • Multiple operator selectable data storage rates
  • Display of Multiple on-board calculations
  • Powerful 1800 Watt motor
  • 100-120VAC; 50/60Hz, single phase

  • Performance: Basic components of the system are modular and independently serviceable. Sample flow rate can be set between 50 and 175 CFM (85 and 300 m3 /hr). The standard filter holder has the dimensions 8”×10 (20.3×25.4 cm).
  • Technology: Microprocessor controlled state of the art electronics
  • Operating Temperature Range: 0ºF to 122ºF (-18ºC to 50ºC)
  • Typical Flow Rate Range: 50 – 175 CFM (85 to 300 m3 /hr) (Depending on filter paper dimensions and filter media air resistance)
  • Motor: Brushless: 2.4 H.P. (1800 Watt) motor with electronic motor speed control
  • Power: 100-120VAC; 50/60Hz; 30 amperes; single phase.
  • Housing: Powder coat painted aluminum Locking hinged cover
  • Removable hinged cover Locking swing door with key
  • Dimensions: 57.5”H × 21.5”W × 21.5”D (146H × 54.6W × 54.6 cm D)
  • Weight: Approximately 98 lbs. (44.5 kg)
  • Shipping Weight: Approximately 150 lbs. (68.2 kg)
  • Installation Category: Pollution Degree 3
  • Enclosure Rating: IPX3
  • Automatic Flow Control: The system microprocessor monitors flow rate relative to the operator selectable preset Reference T and P corrected flow rate established during the setup procedure and electronically adjusts the electronic motor speed adjustment, if necessary, to maintain the flow within ± 3.0% of setting. The microprocessor computes the Reference flow rate by correcting the measured values of temperature and pressure to the reference values.

Measurements:

  • Temperature of air flow through system
  • Inlet pressure to the flow sensor
  • Differential Pressure of the flow sensor
  • Ambient pressure

Calculations/Determinations:

  • Totalized volume, Reference T and P*
  • Current flow rate, Reference T and P*
  • Minimum and maximum temperature
  • Minimum and maximum inlet pressure
  • Elapsed time
  • Ambient flow rate and volume Operator selectable REF T and P

Data Acquisition Software:

  • Optional data communications software to download data from instrument to PC after completion of sampling activity

Other System Features:

  • Display of data in English or metric units by selection
  • Automatic shut off of system on totalized volume or elapsed time
  • Real time clock with battery backup
  • Various data storage options
  • Dual password protection Operator password System Administrator password
  • Dual RS-232 communication ports
  • Periodic sampling scenario based on periods within a week selectable by the user
  • Utilization of 8”×10” (20.3×25.4 cm) rectangular filters
  • Vacuum Fluorescent Display; 4lines ×24 characters

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