Moisture Analyzer Test Procedure Use

Moisture Analyzer Test Method:

1, material preparation:

When the sample encounters large particles, please use a tool to grind it and crush the large particles. If you fear that this will damage the moisture content during the grinding process, please use a tool to slightly humidify the points.

2, manipulation steps;

A. Use a special spoonful of reagents in the lid of the instrument to place a flat spoon. Immediately cover the lid of the special reagent box and do not expose it to the air to avoid the failure of the special reagent.

B. Put the two broken and destroyed autumn instruments into the main body of the instrument.

C. Prepare the weighing for preparation and put it into the main tank. (In order to prevent the sample from blocking the bottom hole, it should be tilted when it is put into the sample).

D. Place the main tank of the instrument horizontally. Immediately cover the tank lid and press the tank lid tightly.

E. Hold the instrument in the horizontal position with both hands and tilt the main can lid slightly upwards (45 degrees) to quickly shake the instrument. (or put the instrument on the cradle for maneuvering) to make the crushing and destroying ball constantly hit the material under test and move along the trajectory near the inner wall of the instrument, so that it oscillates for 20 seconds, stops for 20 seconds and then starts the aforementioned method to swing.... Stand still until the pointer does not move. (Sand soil is generally about 1 minute, clay soil usually takes 3-5 minutes).

F. When reading, the hands must not be disordered, and the dial should be level with the eyes and the hands should be pointing upwards.

G. After the test is finished, slowly open the main can lid. The deflation should be slow. Then pour out the contents of the tank and clean the main can cavity with a flat brush. There shall be no residue. Use a brush to clean the weighing pan and clean it with a flannel. Shattered and destroyed the ball's surface stream.

3, sand moisture content rapid determination instrument moisture content meter to measure the content of the high percentage of the manipulative method.

When weighing the measured material on the balance, 15g of material should be weighed, and the rest of the manipulation steps are the same.

When reading the test results, check Table 2 (included with the instrument).

Only when the moisture content of the material is high may be beyond the scope of the instrument when determining the water content of the gas under test, this method is used in the initial survey of the county.

4. Those factors affect the correctness of the indications and their handling:

A、Temperature: If the indication is too high or low during the test, consider the temperature effect. If the temperature is low, you can measure the test results before and after the test. Do not wait for the test temperature of the instrument to improve. If the temperature of the instrument is high, this is often caused by frequent tests of repeated test instruments. At this time, the test should be stopped and the test should be waited a while.

B. Residues in the instrument The test material has not been removed, but these residues are brought into the next test and must be removed after each measurement. Shanghai Jiashi Electronic Technology Co., Ltd. C, rapid moisture content meter for sand, moisture content meter, bitumen moisture content meter, premature contact of tested materials with special reagents, Shanghai Jiashi Electronic Technology Co., Ltd. did not press the main can lid tightly. A chemical reaction occurred and the department gas was run off. Therefore, when operating, pay attention to the horizontal placement of the instrument. Immediately after placing the test material, press the main can lid tightly.

D. The material to be tested and the special reagents are not fully reacted. It is only necessary to check the contents of the main cans on the paper to check. If this is indeed the case, repeat the test and increase the time and pay attention to the swing, or The material to be tested is ground or broken before it is tested. Shanghai Jiashi Electronic Technology Co., Ltd. E, the indication is too high, but when the previous test, the special hand has not returned to zero, it should be tested.

F. The dedicated hands are not moving. Although the hands are still shaken repeatedly, the hands of the hands of the pointer are still not moving. It can be checked whether the forgetfulness is put into the special reagent or the special watch is out of order.

G, when using the proportion of detection, forget to see Table 2 on the test results. Shanghai Jiashi Electronic Technology Co., Ltd. H. If the pointer of the instrument moves slowly, it should be fully ground or crush and destroy at the same time when the same kind of material is used at the next time.

I. The indication error is large. It should also consider whether the measured material is representative or weighed correctly.

J. Man-made reading error. If the result is read out when the hands have not stopped, or when reading the indication value, the test result is not read with confidence. The two eyes should be the hands of the dial. Do not read the scale indication when deviating or tilting.

K, indicating value error, should check the special reagents, some materials contain volatile substances, according to the scale oven method, which is also counted as water content, the instrument can only react with water and special reagents, if When there is a volatile substance in the tested material, the reading is low compared with the oven method. If the user needs to pass the test several times and make a record, the correction coefficient will be established.

Moisture content quick detector safety precautions Shanghai Jiashi Electronic Technology Co., Ltd.:

1. The gas released in this instrument is flammable. Therefore, it must not be close to the source of fire during the use of the instrument.

2. When the instrument is swinging, the mouth of the tank should not face other people. When it is deflated, it must be slow, and do not rush to the face.

3. Before and after the instrument is used, the outside of the instrument should be inspected. If any defects such as cracks, bulges, or leaks are found on the instrument, use should be stopped and inspected. The instrument can be used only after it has been effectively treated.

4. During use, if the pressure gauge pointer is found to be malfunctioning, the scale is not clear, the dial glass is scratched, the pointer is not zeroed after deflation, and the seal damage is caused. Replace the special table.

5. The instrument must not collide with sharp edges and corners to prevent the instrument from being contaminated by stress and affecting the life and strength of the instrument.

6, the residue after the test can not be poured, especially not in a windy room, should be poured in a designated outdoor location or a closed container, and buried in the soil regularly.

7, special reagents contain calcium carbide components.

Sand Moisture Content Quick Tester Moisture Content Tester Asphalt Moisture Content Tester Moisture Content Quick Tester Structure Principle:

The instrument is mainly composed of the main body of the instrument, the lid of the main can, the fastening device, the filter, the crushing and destroying ball, the sealing pad, the water content meter and the like.

The working principle of the instrument is based on:

1. CaC3 C2H2 Ca(OH)22, PV=nrT

Mixing the test material containing water with special reagents to fully chemically reflect the gas-impulse gas, these reflections are carried out in a sealed pressure vessel, because the pressure vessel has a constant volume and the gas pressure increases. The amount of gas produced is proportional to the amount of moisture in the measured material. The lower the gas pressure, the moisture content on the instrument indicates that the scale of the water content scale has been engraved based on the percentage of water content. The operator can directly read the percentage of water content from the dial.

The characteristics of the moisture content rapid measuring instrument:

1. The characteristic of this instrument is that the instrument is in the process of weighing, it is the process that the reagent and the water in the tested material produce chemical reflection. The result of the measurement is just the result of chemical reflection. This is more than the simple measurement method, which is not limited by the scale sample, and it is not limited by the work place and work environment. It can be measured at any time and the result can be obtained at any time.

2. Sand Moisture Content Quick Tester Moisture Content Tester Asphalt Moisture Content Tester Because this instrument was selected as the first-class special reagent in the national scale, the chemistry was thoroughly reflected and the time was short (usually about 1-3) during the measurement process. A few minutes or so give results.) The cost is low, so this instrument to measure saves money and saves money.

3, the instrument design considerations, according to the gas explosion pressure strength calculations, so in the use of the process according to all reliable.

4, using this instrument to measure the moisture content of the test material with the scale oven method 200g, less than 2% in the weighing, this shortage is equivalent to a 2% less water content, but the instrument test, such as the weight is not so Carefully shortage of 2% of the weight, if the measured material is 10%, then the shortage of 2% of the weight is actually 2% of the water content, ie 10% X2% = 0.002, which is equivalent to 0.2%, for the drying method One-tenth of the error in the test.