Cangzhou Xinglong Engineering Instrument Co

Wholesale price of type (ordinary digital display) mortar setting time tester
When using the mortar setting time tester, first put the evenly stirred mortar into the test mold, and smooth it about millimeters away from the upper surface. If the surface bleeding is not cleared, place the test mold on the disc. At this time, clear the pressure display (see the appendix for display settings). [Then the operator applies pressure vertically downward on the pressure rod with his hand, and the test mold is reset within seconds. The needle penetrates vertically into the sand installation slowly and evenly. At this time, the first measured value is shown on the pressure display. At the same time, adjust the limit nut to the appropriate position, release the pressure rod, and the test needle resets under the action of the spring force and presses each Repeat once every half an hour. When the resistance value reaches . ( .)
The penetration depth is the static pressure
The penetration test needle cross-sectional area ()
The penetration resistance value is calculated accurately to. 〕.
For specific test methods, please refer to the industry standards of the People's Republic of China, Chapter 6 on the basic performance test methods of building mortar, and the relevant regulations on the mortar setting time measuring instrument.
Maintenance of digital mortar setting time tester
After the test, the workbench panel, test pins and contact pieces must be wiped clean. Do not subject the work surface to heavy pressure (less than).
.Take out the sample from the test mold, scrub it clean and apply oil to prevent rust, and apply a release agent before use. The sliding parts should be regularly lubricated with oil to make the instrument work properly.
.This instrument should be placed in a quiet, non-corrosive and medium-free environment with room temperature around ℃:
Appendix
Instructions for use of pressure indicator
Wiring:
Terminal: Negative power supply, connect to the black wire of the sensor
Terminal: Positive input signal, connect to the sensor
Terminal: Negative input signal, connect to the white wire of the sensor
Terminal: Positive power supply, connect to the red wire of the sensor
Terminal , : Voltage AC power supply digital display mortar setting time meter calibration operation:
Turn off the power, while ensuring that the measured force is zero, press and hold the reset key and ▲ key at the same time, turn on the power, First enter the zero position calibration. At this time, the upper row of digital tubes displays the zero position error, and the lower row of digital tubes displays the original stored zero position error. When the display of the digital tubes is stable, press the ▲ key. After the digital tubes dim for a moment, the data is confirmed. Press The clear key enters high-level calibration. At this time, the standard force (removal code) is added to the sensor. The upper digital tube displays the calculated force value, and the lower digital tube displays the magnification (digital number). Press ▲, key Change the magnification until the value displayed on the upper row of digital tubes is equal to the added standard force value. At this time, press the clear key to save the zero error and multiple.
, detection range~
, indexing value.
, maximum stroke
, test needle cross-sectional area
, test mold inner diameter, depth
Digital display mortar Instructions for use of the coagulation time measuring instrument:
, display instructions:
The upper row of digital tubes displays the measured actual force value, the unit is Newton, and the lower row of digital tubes displays the measured force peak value (maximum value).
Instructions for pressing key:
Clear key: Press the clear key to clear the measured force. The value displayed thereafter is the measured value minus the value when cleared
▲Jian: increasing and decreasing numbers.
Peak hold key: The peak value displayed by the digital tube in the lower row is automatically held. If the current measured value is greater than the peak value, the current measured value will automatically replace the peak value. When the peak hold key is pressed, the original peak value will be replaced by the current measured value. Replacement
Measurement operation:
Turn on the power, place the sample, and press the clear key. At this time, both the upper and lower rows of digital tubes display zero. Slowly apply force. At this time, the upper row of digital tubes will display zero. Displays the actual value of the applied force. The lower row of digital tubes displays the peak value of the applied force. After the measurement, the lower row of digital tubes displays the peak value of the force. If you want to measure again, press the button without adding force. Clear the key and clear the peak value.
Technical indicators of digital mortar setting time tester:
Sampling time: twice per second
Maximum force measured: Newton
Error: less than %
Power supply: AC volts plus and minus error %
The digital mortar setting time tester is a special instrument designed according to the industry standard of the People's Republic of China "Test Method for Basic Performance of Construction Mortar". It is applicable to the setting speed and setting time of side fixed wall mortar and wall mortar expressed in terms of penetration resistance. It is one of the special equipment for various construction research units and laboratories of universities and colleges.
Structure and use of digital mortar setting time measuring instrument:
This instrument consists of a handle, a test needle, a column, a base, and a pressure display (connected to the sensor) (the ordinary type is a dial display ), test mold, contact piece, drill chuck, bracket, spindle, limit nut, etc. (see Figure 1) The handle exerts pressure and slides downward through the test needle shaft to insert the test needle into the test mold. In the inner mortar, due to the change in solidification hardness of the mortar over time, the test needle obtains different penetration resistance, and different pressure values are read on the pressure monitor.
When using, first put the evenly stirred mortar into the test mold, and smooth it about millimeters away from the upper surface. If the bleeding on the mortar surface is not removed, place the test mold on the disc. At this time, clear the pressure indicator. (See the appendix for display settings) [Then the operator applies pressure vertically downward on the pressure rod with his hand, and slowly and evenly penetrates the test needle vertically into the sand installation within seconds. At this time, the pressure display shows the first Measure the value. At the same time, adjust the limit nut to the appropriate position, release the pressure rod, and the test needle will reset under the action of the spring force. Repeat every half hour. When the resistance value reaches., change to measurement once every minute until the resistance value reaches. Until
Digital display mortar setting time measuring instrument mortar penetration resistance calculation:
In the formula, the penetration resistance value (.)
The penetration depth is the static pressure
Penetration test needle Cross-sectional area()
The penetration resistance value is calculated to the accuracy of. 〕.
For specific test methods, please refer to the industry standards of the People's Republic of China, Chapter 6 on the basic performance test methods of building mortar, and the relevant regulations on the mortar setting time measuring instrument.
Maintenance of digital mortar setting time tester
After the test, the workbench panel, test pins and contact pieces must be wiped clean. Do not subject the work surface to heavy pressure (less than).
.Take out the sample from the test mold, scrub it clean and apply oil to prevent rust, and apply a release agent before use. The sliding parts should be regularly lubricated with oil to make the instrument work properly.
.This instrument should be placed in a quiet, non-corrosive and medium-free environment with room temperature around ℃:
Appendix
Instructions for use of pressure indicator
Wiring:
Terminal: Negative power supply, connect to the black wire of the sensor
Terminal: Positive input signal, connect to the sensor
Terminal: Negative input signal, connect to the white wire of the sensor
Terminal: Positive power supply, connect to the red wire of the sensor
Terminal , : Volts AC power