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The Gilian Challenger® is an air flow calibrator for verifying and calibrating Industrial Hygiene Air Sampling Instruments and other air sampling devices. The Challenger® is accurate within 0.75% of reading and provides a LCD indication of Volumetric and Standard flow rate, barometric pressure and ambient temperature.
The heart of the Challenger® is the Venturi. It is made from aluminum and has no sharp edges or moving parts. The instrument, depending on the configuration, is capable of covering the flow rate range of 1 to 30 LPM.
Challenger® offers a 90% recovery of pressure drop which is key to performing a reliable calibration. Because fl ow through the instrument is uninterrupted, our graphic software provides a continuous output display of all functions. This continuous output makes it very simple to configure The Challenger®.
Each unit is furnished with a high and low flow venturi and NIST Traceable Certificate. Requires 4 AA batteries (not included).
Features:
- Precise air flow calibration from 1-30 LPM
- Wide temperature range of -30° to +55° C
- Displays both actual and standard flow rates
- Simple operation with no moving parts
- Truly portable, battery powered calibrator
Product Specifications
Run Time ..........................20 hours minimum
Flow Rate ..........................1-30 LPM
Operational Temp .............-30° C to 55° C
Reading Temp ...................-30° C to 55° C (± 0.5° C)
Barometric Range .............400 to 800 mm of Hg (± 5mm) (534 to 1066 millibars)
Accuracy ...........................0.75% of reading or better
Dimensions ......................1.59 in. (4.04 cm) H X 3.90 in. (9.91 cm) W X 7.70 in. (19.61 cm) H
Power ................................4 AA Alkaline batteries
Weight ..............................w/ 1 venturi 7.4 oz (209 g)
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