406850

User's Guide Differential Pressure Manometer Model 406850 Introduction Congratulations on your purchase of the Extech 406850 Differential Pressure Manometer. This device measures Gauge/Differential Pressure from 0 to 55.40 inH2O (inches of water). It features 5 selectable units of measure: inH2O, psi, bar, mbar, mmH2O. Additional features include: Data Hold, Auto Power Off disable, and an RS-232 interface for capturing readings to a PC using optional software (407752). Careful use of this meter will provide years of reliable service. Specifications Function inH2O psi bar mbar mmH2O Display Accuracy Repeatability Linearity/Hysteresis Combined Accuracy Connectors Maximum Pressure Response Time Compatibility Low Battery Indicator Overrange Indicator Underrange Indicator Compensated Temperature Range Operating Conditions Storage Conditions Power Supply Dimensions / Weight Range ±55.40inH2O ±2.000psi ±0.137bar ±137.8mbar ±1407mmH2O Dual LCD ±0.3%FS at ±25 C ±0.2% to 0.5%FS ±0.2%FS ±1.0%FS Two metal 4.8mm ports for flexible tubing 20psi 0.5 seconds typical Air or Non-Corrosive Gases Yes Err.1 Err.2 32 to 122 F (0 to 50 C) 32 to 122 F (0 to 50 C); < 80% RH non-condensing -4 to 140 F (-20 to 60 C);