PRIMARY CALIBRATORS MODELS 4046 AND 4146 ROUTINE CALIBRATION FOR ASSURED ACCURACY Personal sampling pumps are key tools for exposure assessment. The accuracy sampling of the pumps depends on how much air passes through the sampling media as well as good laboratory analysis. As a common practice, sampling pumps should be calibrated before and rechecked after sampling using a calibration device. TSI offers two Primary Calibrator Models for calibrating pumps and any other air sampling instruments that draw an active air sample. These + Provides continuous real-time volumetric flow rate readings, small, portable, battery-operated units are lightweight and easy to use. so pump adjustment and calibration is fast and easy Volumetric flow rate is displayed continuously, making real-time pump + Battery powered, compact and lightweight adjustment, calibration and periodic flow checks fast and easy. These + Field portable—use the same primary calibrator for adjustment, Primary Calibrators are temperature-compensated and calibration and periodic checks pressure-corrected to calculate volumetric flow rate at an accuracy + Comes with a NIST traceable calibration certificate + Kits come complete and are ready to use Primary calibrator kits are available with a soft-sided carrying case, battery pack, tubing, user guide and NIST-traceable calibration certificate. UNDERSTANDING, ACCELERATED

Flow Measurement Range Model 4146 0.01 to 20 lpm Accuracy Model 4146 ±2% or 0.005 std. lpm, whichever is greater Model 4046 ±2% or 0.05 std. lpm, whichever is greater Shipping Weight Model 4146 2.2 lbs (1.0 kg) Warm-up Time 1 min DC Power Input 7.5 VDC ±1.5 V, 300 mA max Specifications are subject to change without notice. TSI and the TSI logo are registered trademarks of TSI Incorporated. UNDERSTANDING, ACCELERATED TSI Incorporated - Visit our website www.tsi.com for more information.