HG-80 (ordinary/digital display) concrete penetration resistance meter wholesale price

(Ordinary digital display) concrete penetration resistance meter wholesale price
Digital display concrete penetration resistance meter is a new generation used for various types of cement, admixtures, different concrete mix ratios, and different temperature environments Test of setting time of concrete mixture under The digital display concrete penetration resistance meter is designed to be light and beautiful. It adopts the lever principle to read the needle force directly from the meter, making the test convenient and accurate. The instrument has excellent performance, simple operation, accurate data, and high product quality. Stability and other advantages. Welcome new and old customers to call and write for consultation!
Usage of digital display concrete penetration resistance meter:
This instrument is used to test the setting time of various types of cement, admixtures, concrete mixtures with different concrete mix ratios and different temperature environments. The digital display concrete penetration resistance meter is designed to be light and beautiful. It adopts the lever principle to read the needle force directly from the meter, making the test convenient and accurate.
Main technical parameters of the digital concrete penetration resistance meter:
, sample mold upper diameter mm, lower diameter mm, depth mm, maximum penetration force, penetration depth mm, penetration speed (manual control) .㎜
, penetration needle cross-sectional area㎜㎜㎜, penetration point (optional)>, force measurement mode electronic digital display, minimum graduation value, indication error, net weight:
Digital display concrete penetration Insertion resistance meter operating instructions:
Place the instrument on a horizontal platform.
Connect the power supply, press the power button on the digital display panel, and the digital display window will display numbers. Please turn on the power for a few minutes before the digital display value automatically converges.
Select a suitable penetration needle. Corresponds to the initial setting penetration resistance (i.e. ~., use a penetrating needle in this case). Corresponds to the intermediate penetration resistance (i.e..~, uses a penetrating needle in this case). Corresponds to the final setting penetration resistance (i.e. ~, uses a penetrating needle in this case). Needle).
The material mold is filled with the concrete sample to be tested, smoothed and placed on the bottom plate of the instrument.
Adjust the penetration depth.
One method is: first measure the distance between the lower end surface of the penetrating needle and the upper plane of the sample (note: it must not be greater, otherwise the penetrating needle needs to be lowered appropriately), and then connect the lower plane of the fixed-length nut on the top of the instrument to Adjust the distance between the upper surface of the cover to +, and then tighten the screw cap to lock the + length.
Another method is: press the handle to keep the lower end surface of the penetrating needle flush with the upper surface of the sample, and then adjust the fixed-length nut on the upper part of the instrument so that the distance between the lower surface and the upper surface of the cover is even. Lock this length and release the handle.
The actual penetration depth of the above two methods is .
Test: First press the clear key on the digital display panel to clear the initial value of the sensor, that is, clear it to zero. Press the test button again to enter the working test state. At the same time, the first light (test light) on the digital display board is on. Hold the handle and turn it downwards so that the penetration needle contacts the sample until it penetrates to the deepest position (). The process is controlled at seconds or so. At this time, a peak value appears on the digital display. At the same time, the second light (peak light) on the digital display board lights up. Read the value displayed on the digital display and make a record. The test is completed in one go.
During initial coagulation, use a penetrating needle, and the calculation formula is ().
During final coagulation, use a penetrating needle, and the calculation formula is: ().
Test procedures for digital concrete penetration resistance meter:
Place the concrete on the chassis of the instrument, loosen the adjusting screw sleeve, and install a suitable penetration needle.
Turn the adjusting screw plug to align the pressure gauge pointer with the zero line of the scale.
Set the action toggle switch to the adjustment position, place the forward and reverse toggle switch to the forward rotation position, and press the work button. After pressing the work button, the sample container will be in seconds. Start to rise and then adjust after it stops. When adjusting, loosen the adjusting screw sleeve to adjust the penetration needle to just contact the sample surface, and tighten the adjusting screw sleeve to fix the penetration needle. Press the work button again. After a few seconds, the sample container rises, that is, it penetrates to the deepest position. Read the penetration resistance of the pressure gauge and record it. After the sample container stays for a few seconds, it starts to fall and returns to its original position after a few seconds. . Automatic shutdown, one test is completed.
When doing the second penetration test, you must change the penetration position and push the handle to rotate it to a certain angle. When the penetration point is on the outer ring, you only need to push the handle once to change the measuring point. When the penetration point is on the inner ring, , to change it, you need to push the handle twice.
During the test process, you should always pay attention to whether the pressure gauge pointer starts at zero. If it is not at zero, it should be adjusted to zero.
When there is no need to adjust the height of the penetration needle, the action button switch can be placed in the automatic position, so that in subsequent tests, as long as the start button is pressed once, a test cycle will automatically start.
Each sample shall be tested for penetration resistance no less than six times, and the penetration resistance per unit area of the last test shall be no less than 6 times.
After using it for a period of time, turning the adjusting screw plug to the extreme position cannot make the pressure gauge pointer adjust to the zero line. At this time, oil must be added.