: Air content in fresh concrete is commonly measured in the field using the pressure method. The pressure method is practical for field-testing most concretes.

Original volume of Air in the sample is determined by the principle of Boyle's Law. This Meter (DY-300) quickly determines the percentage of entrained air in freshly mixed concrete. And it as a multi-range feature to accurately measure entrained air up to 9.9% by Digital Measuring System.

1.Technology : Digital Measuring System

Measuring Target : Air content in freshly mixed concrete Measuring Method : Digital Measuring System by Micom(Water filled/Waterless) The principle of Measurement: Boyle's Law Air pressure sensor : Ceramic pressure cell, Max.200.0kPa Air pressure Resolution : 0.1kPa Measuring Range(Air content) : 1>0.0%∼9.9% 2>0.00%∼9.99%(Selectable) Accuracy(Air content) : (@20°C) 1>±0.1% 2>±0.01% Resolution(Air content) : 0.1% / 0.01% Measuring Temperature : 0°C∼70°C Temp accuracy : ±0.1°C Operating Temp/Humidity : 0°C∼50°C / 80% RH (Relative Humidity) Air content Calibration : 2 points (0%-Zero / 4.5%-Span) I.P Line : 1>Case A : Water filled-100kPa 2>Case B: Waterless-98kPa Air meter Bowl : 7L,Lightweight cast aluminum alloy, 6.7kg Compressor(compressed air pressure): Automatic pump up the air pressure

(Compressed air pressure system by motor-operating: Max.110.0kPa/30 Sec.) Display: 128 x 64 LCD Graphic Display

1. Air pressure: 4 digit

2. Air content: 2 digit(3 digit:Selectable)

3. Temperature: 3 digit Power Supply: Ni-MH x 8Pcs, rechargeable Battery Life: 20 consecutive times use Adapter: DC12V/500mA Interface: Standard IrDA V1.0 (9,600 BAUD.8 data bit,No parity,1 stop bit) DIMS(L x W x H) / Weight : 120 x 110 x 125mm / Abt.8.0kg Printer(Thermal): (Option)

2.Accessories :

Strike-off-Toll / Tamping Rod(16x600mm) / Straight Edge / Rubber Gasket / Syringe for water / Plastic Graduated Cylinder(100ml) / Clamp (C type:4Pcs)/ Tube