Compressed Air Flow Meter for Industrial

The Testo 6440 series of compressed air flow meters is designed to monitor, measure and record compressed air consumption to aid in the determination of leakage, consumption-based allocation of costs and the implementation of peak load management. The 6440 series utilizes the calorimetric principle so that the measurement procedure is independent of the process pressure and does not cause a permanent pressure drop. While the thermal, glass-coated ceramic sensor offers a high level of robustness and fast response times, the integrated inflow and outflow pipes ensure optimum accuracy.FeaturesFor the measurement of compressed airAvailable in four sizes from 1/2” to 2” with flow ranges from 0.25-75 m3/h to 2.3-700 m3/hAccuracy: up to ±3% of measured value, ±0.3% of final valueSelectable units: m3/h; l/min; m3Thermal, glass-coated ceramic sensor (calorimetric measurement procedure)Temperature range: 32 to 140 °FOutputs4 to 20 mA (4-wire) analog outputPulse output2 switch outputs, parameterizableSupply voltage: 19 to 30 V DC4-digit alphanumerical display with two operating buttons, operating menu, and LEDsProcess pressure: PN 16 (max 16bar/232psi)