GAS FLOW METERS
The BI-2400-CF is a highly accurate and ultra low pressure drop (up to +/- 1% of rate @ 25% of full scale) Flow Meter with less than .4% of 1” W.C. dropped through the entire device. Using a unique sub-venturi flow system the AA battery powered device operates up to 50 hours continuously. Flow rates to 900 SLPM (mass)/LPM (volumetric) are indicated by a 4x20 character LCD display. Higher or lower flow rates are available. A 0-10 volts DC output is accessible via 2.5 mm jack. NAVLAP certified as a flow metrology calibration to 400 LPM.
The BI-2000 series of Gas Volumetric Flow Meters ranges from 2 ccm (cubic centimeters per minute) to 1500 LPM (Liters Per Minute). Full scale accuracy of +/- 1% is standard. Units to 400 LPM can be re-ranged in the field or by the factory. Units from 400 LPM-1500 LPM can also be re-ranged in the field or by the factory. Each group has a re-ranging kit offered specific to its flow range group (See Re-ranging). Volumetric Flow Meters are often used where gas flows to 'vent' and volume of gas metered does not change because of changes of back pressure and flow stream temperature.
The BI-1000 series of Gas Mass Flow Meters ranges from 2 sccm (standard cubic centimeters per minute) to 1500 SLPM (standard liters per Minute). Full scale accuracy of +/- 1% is standard. Units to 400 SLPM can be re-ranged in the field or by the factory. Units from 400 SLPM-1500 SLPM can also be re-ranged in the field or by the factory. Each group has a re-ranging kit offered specific to its flow range group (See Re-ranging). BI-1000 series Gas Mass Flow Meters utilize differential and absolute pressure sensors and a temperature sensor in an LFE (laminar flow element) system, and correct for changes of pressure and temperature to standard flow conditions of 1 Atmosphere and 25 degrees C. Corrosive gases are a strength of the BI series.