TT240 Coating thickness gaugeDetailed product description：

The TT240 coating thickness gauge adopts eddy current thickness measurement method, which can measure the thickness of non-conductive coatings on non-magnetic metal substrates without damage (such as enamel, rubber, paint coatings on copper, aluminum, zinc, tin and other substrates)
·There are two measurement methods: Continuous measurement method and Single measurement method;
·It has two working modes: direct mode (Direct) and group mode (APPL);
·There are five statistical measures: Mean, Maximum, Minimum, Number of Tests, and Standard Deviation;
·Zero point calibration and two-point calibration can be performed, and basic calibration methods can be used to correct the systematic errors of the measuring head;
·Storage function: capable of storing 350 measurement values;
·It has a deletion function: it can delete individual suspicious data that appears during measurement, as well as all data in the storage area, in order to conduct new measurements;
·Limits can be set: automatic alarms can be triggered for measurement values outside the limits;
·Capable of printing: able to print measurement values and statistical values;
·Capable of communicating with a PC: capable of transmitting measured and statistical values to the PC for further data processing;
·Equipped with power undervoltage indication function;
·There is a buzzing sound during the operation process;
·Equipped with error prompt function;
·Equipped with automatic shutdown function

Probe type		N
Measuring principle		eddy current
measurement range		0-1250um/0-40um (chrome plated on copper)
Low resolution limit		1 µ m (0.1um below 10um)
Probe connection method		Split type wire connection
indication error	A little calibration (um)	±[3%H+1.5]
	Two point calibration (um)	±[（1%～3%）H+1.5]
measurement conditions	Minimum curvature radius (mm)	Convex 3 concave 10
	Diameter of the minimum area of the substrate (mm)	ф5
	Minimum critical thickness (mm)	zero point three
temperature and humidity		0～40℃，20%RH～90%RH
Statistical Function		Mean, Max, Min Test frequency (NO.), standard deviation (S.DEV)
working method		Direct method and group method (Appl)
measurement method		Continuous measurement method and Single measurement method
Upper and lower limit settings		Nothing
storage capacity		350 measurement values
Print/Connect Computer		Optional printer/able to connect to computer
Shutdown method		Manual and automatic
Power supply		Two AA type alkaline batteries
Overall dimensions		152×47×35mm
weight		370g