Pump Calibration

CALIBRADOR para bombas de alto y bajo caudal

Primary Calibrators

Personal sampling pumps are key tools for exposureassessment. The accuracy of sampling depends onhow much air passes through the sampling mediaand good laboratory analysis. As a common practice, samplingpumps should be calibrated before andrechecked after sampling using a calibration device.
TSI offers two Primary Calibrator models for calibrating pumps or any other air sampling instrumentthat draws an active air sample. The Model BL302B Primary Calibrator offers a range of 0.01 to 20 lpmand the Model BL302A, from 2.5 to 300 lpm.These small, portable, battery-operated units arelightweight and easy to use. Volumetric flowrate is displayed continuously so adjustments to pumpflow can be made in real-time. These PrimaryCalibrators are temperature-compensated and pres-sure-corrected to calculate volumetric flow rate atan accuracy within 2% of reading.Primary Calibrator kits are available complete with asoft-sided carrying case, battery pack, tubing, userguide and NIST-traceable calibration certificate.

Flow Measurement Range

BL302B  Model 4146  0.01 to 20 lpm

BL302A Model 4046  2.5 to 300 lpm


BL302B Model 4146  2% or 0.005 std. lpm, whichever is greater

BL302A Model 40462% or 0.05 std. lpm, whichever is greater


BL302B Model 41465 in. 2 in. 1.25 in. (12.7 cm 5 cm 3.2 cm)

BL302A Model 40467.2 in. 2.5 in. 2.1 in. (18.3 cm 6.4 cm 5.3 cm)

Shipping Weight 

BL302B Model 4146   2.2 lbs (1.0 kg)

BL302A Model 4046   3.0 lbs (1.1 kg)

Warm-up Time1 min

DC Power Input   7.5 VDC 1.5 V, 300 mA max 

Specifications are subject to change without notice.