Multi functional measuring instrument for carbon dioxide content in cement

NegotiableUpdate on 03/12

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

The multifunctional measuring instrument for carbon dioxide content in cement adopts advanced semiconductor cooling components and multiple adjustable control parameters with self cooling technology. It does not require external circulation of cooling water and can achieve constant temperature in the range of 1 ℃ to 50 ℃, regardless of the ambient temperature. The temperature can be set arbitrarily, and the temperature control accuracy is less than; amp; amp; amp; amp; amp; amp; amp; amp; amp; #177; At 0.5 ℃, the instrument has functions such as constant temperature, timed reminder, magnetic stirring, and temperature correction.

Product Details

Multi functional measuring instrument for carbon dioxide content in cementPrecautions for use:

1. The charging time for the instrument is 6-7 hours, not exceeding 8 hours.

2. Sensors and circuits should pay attention to metal impurities in waterproof boxes.

3. Do not charge while checking the power on status.

4. The instrument should be stored in a dry and dust-free environment if not in use for a long time. It should be charged before reuse and checked after ten minutes of startup.

5. The inspection result of the instrument quantitatively displays the concentration of carbon dioxide in the air within the error range, and should not be regarded as a statutory inspection result according to relevant regulations.

Multi functional measuring instrument for carbon dioxide content in cementTest steps

Before each measurement, connect an empty reaction bottle to the instrument deviceUp (reaction bottle)4）, ConnectUShape tube9、10、11、12、13Open itUShaped tube pistonStart the air pump and control the gas flow rate to approximately50~100ml/min(per second)3~5A bubble), ventilation30minAboveTo remove carbon dioxide and moisture from the system.Before each experiment, you canUShape tube10、13Connect, adjust gas flow, and ventilate approximately20minLater, connect againUShape tube11、12Continue to ventilate10min）

Turn off the vacuum pump, turn offU-shaped tube10、11、12、13The grinding plug. removeU-shaped tube11and12Placed in a dryer,constant temperature10minThen weigh them separately.When using U-shaped tubes, care should be taken to avoid affecting quality, damage, or injury. Wear protective gloves when performing operations.

Weighing the contract1g（m10）Sample, accurate to0.0001g, placed in a dry place100mlReaction bottle, connect the reaction bottle to the instrument device, and weigh theU-shaped tube11and12Connect to the instrument device. Start pumping and control the gas flow rate to approximately50~100ml/min(per second)3~5A bubble). join20mlAdd phosphoric acid into the separating funnel, carefully unscrew the separating funnel piston to allow the phosphoric acid to drip into the reaction bottle, leaving a small amount of phosphoric acid in the funnel to act as a liquid seal, and close the piston.Open the small electric furnace under the reaction bottle, adjust the voltage to make the electric furnace wire dark red, slowly heat it at low temperature to make the liquid in the reaction bottle boil, and heat it to a slight boil5minTurn off the electric furnace and continue to ventilate25min.Do not heat vigorously to prevent backflow of liquid in the reaction bottle. Turn off the vacuum pump and U-tube10、11、12、13The grinding plug. removeU-shaped tube11and12Placed in a dryer,constant temperature10minThen weigh them separately（m7andm8）Use each oneCalculate the carbon dioxide content in cement based on the increased mass of the U-shaped tube. If the second U-shaped tube12The quality change is less than0.0005gIgnore during calculation. Actually, all carbon dioxide should be absorbed by the first rootU-shaped tube11Absorption.Simultaneously conduct blank experiments. Deducting blank test values from the measurement results during calculation（m9）.

After the measurement is completed, remove the reaction bottle, clean it thoroughly, and dry it for later use. Close all pistons and grinding plugs to prevent carbon dioxide and moisture from entering.