Air Sampling and Monitoring Products
Air Flow Calibrators & Adapters
The most accurate calibration assembly train should include the actual filter holder & filter media used during sampling in order to duplicate realistic pressure drops experienced in a true sampling environment. The following adapters allow a technician to connect an Air Flow Calibrator at the end of an "In-Line" High, Medium or Low Volume Air Sampling calibration set up.
HI-Q's AFC-COMPLETE, digital air-flow calibrator, is "the field technicians first choice" when it comes to air-flow calibration. This microprocessor based air-flow calibrator incorporates the use of a differential pressure sensor, a precision thermistor, an absolute barometric pressure sensor, and a precision machined venturi tube, to measure and calculate instantaneous flow rate in either CFM*, LPM*, or CMM*, air temperature in either ºF or ºC, and Barometric Pressure in either Inches of Hg or mmHg. * "STP" may be selected for volumetric unit correction to Standard Temperature & Pressure. *** This Calibrator has been replaced by HI-Q's D-AFC-Series Calibrators ***Digital style AFC units house an LED display
which employs advanced technology for stable, drift free, readout while incorporating features that provide flexibility now and in the future with Plug-in option cards available for alarm contacts, analog output, and serial communication. The AFC-DIGITAL's Rate/Total display indicates air flow rate in Actual Cubic Feet per Minute (ACFM) and displays total volume sampled in Actual Cubic Feet (ACF).
Analog style AFC units house a Magnehelic® differential pressure gage, whose relative volumetric flow rate units are transferred onto a direct reading scale. A reflective tape on the scale, behind the analog needle, reduces parallax error. Overall accuracy on analog AFC units is better than +/- 5%.HI-Q's D-AFC- Series microprocessor based air flow calibrators are useds to measure, record, & display instantaneous flow rate (i.e.: CFM, LPM, or CMH), temperature (degrees C or F), and barometric pressure ("Hg or mm Hg). Through onboard calculations the user may also select to display the flow rate or total volume in "Standard Units" (ie: SCFM, SLPM, SCMH or SCF, SL, SCM). The total volume of air sampled is displayed (re-settable) in standard and actual units. The processor also has an internal memory that can be programmed for logging and time stamping the instantaneous flow rate, barometric pressure, and temperature.The HFC-Series, HI-Volume Air Flow Calibrators, have eliminated the need for cumbersome orifice plates and water manometers. The HFC-XXC series units utilize a precision machined Venturi tube coupled with a pressure differential gauge giving a direct reading in the volumetric units of your choice (i.e. SCFM @ stp) .The V-FLO-XX series units incorporate a flowmeter and a precision-machined venturi tube to create a pressure differential across a fixed orifice which floats the indicating ball in the flowmeter. The complete unit includes one male (outlet) & one female (inlet) 3/8" quick disconnect fitting. The V-FLO-XX, venturi flow meters are intended for in-line use.