• During measurement, instrument automatically identifies the metal properties of the base material, screen shows "Fe", means base material is magnetic, steel, iron, etc; Screen shows "NFe",means substrate is non-magnetic material, aluminum, aluminum alloy, copper, etc.
• Short press the MODE key to select measure mode (Single/Continuous)
• After power on, press the power key briefly to select the measurement unit um/mil
• Support data clearing function
• When measuring, screen displays value, short press the MAX/MIN key to lock the upper or lower limit value. The device will lock the upper or lower limit value measured on the surface of the substrate after multiple measurements
• Place standard piece 50um/100um/250um/500um/1000um on iron base or aluminum base surface individually. When instrument probe contacts, corresponding calibration point should be displayed. If screen displays a large error with the placed standard piece, pressing CAL key is the same as zero point calibration

Specifications:

• Type: CT02C Upgrade model
• Power: Built-in lithium battery/1000mAh/3.7V
• USB: USB/5V/1A/Type-C
• Weight: about 100g (including lithium battery)
• Display: LCD
• Measuring base: Iron base or aluminum base
• Sampling method: Iron base: magnetic induction; Aluminum base: eddy current effect
• Measuring range: 0-1500um
• Resolution: 0.1um
• Accuracy: Iron base or aluminum base/±(3%+2um)
• Automatic shutdown: About 10 minutes
• Measurement mode: single/continuous
• Unit: um/mil
• The radius of the minimum convex curvature: 5mm
• The radius of the minimum concave: 50mm
• The diameter of the minimum measunng area: 20mm
• The minimum thickness of base material: Iron base or 0.5mm/aluminum base 0.3mm
• Working current: About 30mA
• Working environment: 0~50℃/0~80%RH