发表时间： 2019-08-26 10:24:03
The geomembrane thickness gauge is a professional testing instrument that measures the thickness of geomembrane and sheet by mechanical measurement. This instrument is suitable for geomembranes and sheets without embossing and corrugation.
Geomembrane thickness gauge technical parameters:
★ Reference plate: The surface should be smooth and have enough area.
★ Dial indicator: small division value 0.001mm
★ Weight: 7.5kg
Geomembrane thickness gauge instrument installation:
★ Unpack the instrument, clean the packaged wood chips and other dust particles with a clean soft cotton cloth, place it on the work surface at the appropriate height, and place a soft and moderate rubber plate under the corners of the four corners. Rotate the bottom corner adjustment screw to view the leveler to center the bubble and allow the four soles to touch the rubber sheet in a solid manner. Place the accessory box that came with the instrument next to it for backup.
Geomembrane thickness gauge operation steps:
★ The tester must sample according to the relevant test method standards, so that the sample is in the test state that meets the requirements of the method standard. The right hand holds the cam handle counterclockwise to cause the cam to lift the weight of the pressure plate and the weight of the press weight hanging to the right of the pressure plate. Remove the replaceable presser foot under the pressure plate and select the presser foot type according to the thickness of the test sample. Geomembrane composite material with 0.5 gauge suitable for geomembrane testing, 5 gauge for 0.5~5mm thickness range, geotextile composite material with 10~10mm thickness range for adaptability test, and geotextile for 15# thickness range of 10~12mm material.
★Select the replaceable presser foot, clean the reference plate and presser foot surface with a clean soft cloth, and put the presser foot on the reference plate again. Note that the triangular blade on the presser foot is aligned with the inverted V-groove under the platen.
★ Selection and installation: measure the dial gauge of geotextile. (Measure the geomembrane to select the dial gauge, note: the dial gauge is self-matching). Insert it into the hole of the watch frame. When the contact on the upper surface of the watch touches the upper end surface of the pressable presser foot, move it slightly downward by 0.1~0.2mm and screw the nut. Then clear its table (or zero).
★ Gently lift the replaceable presser foot and insert the sample naturally between the reference plate and the presser foot. The pressure foot is lowered, and the sample is subjected to a pressure of 2 kPa ± 0.01 kPa. At the same time, the ammeter is timed, and when the sample is pressed for 30 s, the dial gauge (or dial gauge) value is read.
★ Repeat the above operation to complete the specified number of test pieces.
Geomembrane thickness gauges use different test pressures as needed:
★ The sample is tested under a pressure of 20 kPa. After repeating step 3.2.6, the pressurizing weight 1 is hung on the hanging ring on the right side of the platen, and then the cam handle is rotated clockwise with the right hand. When the weight of the pressurization is completely supported by the triangular blade of the replaceable presser foot, the timepiece is timed, and the dial gauge (or dial gauge) value is read when the sample is pressed for 30 seconds.
★The sample is tested under the pressure of 200kPa. After repeating the step of step 3.2.6, the pressurizing weight 1 and the pressing weight 2 are simultaneously hung on the hanging ring on the right side of the pressure plate, and then the cam handle is rotated clockwise with the right hand. When the weight of the pressurization is completely supported by the triangular blade of the replaceable presser foot, the timepiece is timed, and the dial gauge (or dial gauge) value is read when the sample is pressed for 30 seconds.