F&J - Model GAS-804DTE - Global Air Sampling System (220 - 240 VAC)
From High Volume Air Sampler - Global Air Sampler (GAS) High Volume Product Lines
The GAS-804DTE Series Air Sampling Systems are designed for remote unattended continuous air sampling applications. The GAS-804DTE Series Air Samplers feature a brushless motor with electronic motor speed control that maintains a user selectable flow rate. The flowrate range attainable through the filter media is dependent upon the air porosity of the filter media. The GAS-804DTE Series design accommodates rapid field service and component replacement.
Product Details
The basic components of the system are assembled in a modular fashion so that each component can be readily and independently removed for service.
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 rainhood on the top of the unit 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-804DTE Series provides a standard flow measurement and a constant flow of air through the filter medium. The air flow is measured by a precision-machined differential pressure sensor. The controller can be readily set to any sampling flow rate between 5 and 50 CFM (141-1415 LPM) depending on the filter paper air resistance and dimensions. The VFD readout displays multiple air sampling information including current flow rate, current elapsed sample time and totalized volume. The filter holder can be custom designed to accommodate any filter size and type. The GAS-804DTE model utilizes a 4 inch (102 mm) diameter filter.
Specifications
- Performance: Basic components of the system are modular and independently serviceable. Sample flow rate can be set between 5 and 50 CFM (141 and 1415 LPM). Filter holder is a 4 inch (102 mm) diameter standard.
- Technology: Microprocessor controlled state of the art electronics
- Operating Temperature Range: -31ºF* to 122ºF (-35ºC* to 50ºC)
- * warm start/continuous operation
- Operating Relative Humidity: 0 – 95% RH
- Typical Flow Rate Range: 5 – 50 CFM (141 to 1415 LPM)
- (Depending on filter paper dimensions and air resistance).
- Motor: Brushless: 1.5 H.P.(1100 Watt) motor with electronic motor speed control
- Power: 200-240VAC; 50/60Hz; 5 amperes; single phase.
- Housing: Powder coat painted aluminum
- Locking swing door with key
- Dimensions: 26”H × 26.5”W × 16.5”D (66 H × 67 W × 41cm D)
- Weight: Approximately 60 lbs. (27,2 kg)
- Shipping Weight: Approximately 100 lbs. (45,5 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 STP flow rate by correcting for temperature and pressure.
On-Board Measurement, Calculations and Other System Features
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, STP
- Current flow rate, STP
- Minimum and maximum temperature
- Minimum and maximum inlet pressure
- Elapsed time
- Selectable ambient flow rate and volume
Optional Items:
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 4”D (102 mm) rectangular filters
- Vacuum Fluorescent Display; 4lines ×24 characters
- Operator Selectable Temperature & Pressure for data correction to standard condition.
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