Occupational Health and Safety >> Flow Calibrators >> Air Flow Calibrator Portable 4146

Air Flow Calibrator Portable 4146

The 4146 Primary Flow Calibrator is a small portable unit that uses alkaline batteries to check the flow of sampling pumps and other devices. It has a temperature compensation and pressure correction system to calculate the volumetric flow rate accurately within 2% of the reading.

Volumetric flow rates are displayed continuously, making real-time pump adjustments, calibrations and periodic flow checks quick and easy. The 4146 calibrator is a high precision element ideal for verifying volumetric flows in the range of 0.01-20 L/min.

The 4146 Master Calibrator comes with a traceable NIST calibration certificate and is available as a complete kit that includes batteries, tube kit, carrying case and user manual. It is ideal for indoor air quality, epidemiological health studies, and field service.

Product Details


  • Provides continuous real-time volumetric flow rate readings, making pump adjustment and calibration quick and easy
  • Battery powered, compact and lightweight
  • Field portable: use the same master calibrator for adjustment, calibration and periodic checks
  • Comes with a traceable NIST calibration certificate
  • The kit is complete and ready to use

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Frequently Asked Questions

Can we find the PT HAS product on the e-catalogue (LKPP) ?

Absolutely, almost all PT HAS products can be found in the e-catalogue.

How about the warranty for products from PT HAS ?

PT HAS Supply’s products include a 1-year official warranty for damage caused by manufactured defects.

Has the PT HAS product been calibrated? What if the calibration period is over?

Products from PT HAS have been calibrated and are ready to use. For further calibration, PT HAS already has a calibration lab that is ISO 17025 accredited and is ready to help customers who need recalibration.

What if the product has a problem and needs repair?

PT HAS has a local service center (in Jakarta), and our technicians are trained in the manufacture of the products we are agents for. For repairs and troubleshooting, we try to do it locally. and we make sure that the spare parts we supply are official spare parts from manufacturers.

Do we get training on using the tool after making a purchase at PT Has?

For all product purchases at PT HAS, usage training is included and is unlimited.

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