- State of the Art microprocessor electronics
- Automatic flow control
- Auto Shut-off on time or volume
- Flowrate and volume totalizations displayed at actual conditions or corrected to STP is operator selectable
- Elapsed time meter
- Auto zero calibration feature of flow sensor
- Bright LED display
- Flow rate accuracy within ± 4% F.S.
- RS-232 Communication Port w/Operator selectable download frequency for real-time data
- 220 - 240VAC, 50/60Hz; single phase
- 110VAC models available.
The DF-60810E Series Air Sampling Systems are designed for remote unattended continuous air sampling applications. The DF-60810E 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 DF-60810E Series design accommodates rapid field service and component replacement.
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 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 DF-60810E Series provides STP flow measurement and constant airflow that is operator selectable 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 to 50 CFM (141 to 1415 LPM) depending on the filter paper air resistance and dimensions. The bright LED readout displays 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 DF-60810E model utilizes an 8"x10" (204mm x 254mm) filter.