TT260 coating thickness gauge measurement operation steps
TT260 coating thickness gauge measurement operation steps, TT260 coating thickness gauge adopts two thickness measurement methods of magnetic and eddy current, which can non-destructively measure non-magnetic on magnetic metal substrates (such as steel, iron, alloy and hard magnetic steel, etc.) The thickness of the coating (such as aluminum, chromium, copper, enamel, rubber, paint, etc.) and the thickness of the non-conductive coating (such as: enamel, rubber, paint, etc.) on the non-magnetic metal substrate (such as copper, aluminum, zinc, tin, etc.) , plastics) are widely used in manufacturing, metal processing, chemical industry, commodity inspection and other testing fields. It is an essential instrument for material protection professionals.
a) Magnetic method (F-type measuring head) When the measuring head is in contact with the covering layer, the measuring head and the magnetic metal substrate form a closed magnetic circuit. Due to the existence of the non-magnetic covering layer, the reluctance of the magnetic circuit changes. By measuring the change The thickness of the covering layer can be exported.
b) The eddy current method (N-type probe) uses high-frequency alternating current to generate an electromagnetic field in the coil. When the probe is in contact with the covering layer, an eddy current is generated on the metal substrate and has a feedback effect on the coil in the probe. The thickness of the covering layer can be derived by measuring the magnitude of the feedback effect.
TT260 coating thickness gauge measurement operation steps
a) Prepare the test piece;
b) Insert the probe plug into the probe socket of the host, and tighten the lock nut;
c) Put the measuring head in an open space, press the "ON/OFF" button to start the machine;
d) Check battery voltage;
Under normal circumstances when starting up, the measured value before the last shutdown is displayed after starting up;
Among them: "NON-FERROUS" ------ N-type probe
"FERROUS" ------ F type test
"D" ------ Direct way
"Number" -------- The last measured value before the last shutdown.
e) Whether it is necessary to calibrate the instrument, and if so, select an appropriate calibration method;
f) measurement
Quickly touch the probe to the test surface vertically and lightly press the positioning sleeve of the probe. With a beep, the screen will display the measured value, and the next measurement can be carried out by lifting the probe;
g) shutdown
In the case of no operation, the instrument will automatically shut down after about 2~3 minutes. Press the "ON/OFF" key to turn off the machine immediately.
