日本KETT品牌LZ-990型涂层检测仪采用了磁性和涡流两种测厚方法，可无损的测量磁性金属基体（如铁、合金和硬磁性钢等）上非磁性覆层的厚度（如铜、铝、铬、珐琅、橡胶、油漆等）及非磁性金属基体（如铜、铝、锌、锡等）上的非导电覆层的厚度（如珐琅、橡胶、油漆、塑料等）。规格型号 LZ-990
测定对象 磁性金属上非磁性涂镀层非磁性金属上绝缘层
测定范围 0～3000um或0～120.0mils
测定 ＜50um±1um ,  ＞50um±2％
分 辨 率 ＜100um  0.1um ,  ＞100um  1um
功能统计 中、英、日、韩四国语言菜单，自动关机，背光设定 ，自动识别。
可针对不同产品保留测量通道，数据可存储，可输出至电脑，可分批统计值、小值、平均值、标准差。 配有专用数据处理软件
计量单位 公制、英制可**切换
显示方式 LCD液晶屏
操作面板 密封防水按键
随机附件 基体/校正标准片/电池/腕带/说明书
电    源 DV6V 5#碱性电池×4个
体    积 75mm（W）×100（mmD）×21mm（H）
重    量 250g
 
LZ-990 "ESCAL"  Dual-Type Coating Thickness Tester is a simple, compact coating thickness tester. It is possible to measure the thickness of films coated onto ferrous and nonferrous substrates. Further, it can automatically determine the type of substrate material and switch to the required measurement mode.
     
    
Specifications LZ-990 "ESCAL" 
Measurement method Uses both electromagnetic induction and eddy-current methods (with automatic selection function)
Applications Non-magnetic coating on ferrous metal substrate and insulating coating on non-ferrous metal substrate
Measurement range 0-2000μm or 0-80mils
Measurement precision <50 μm ± 1 μm, 50 μm to <1000 μm ± 2%,≥ 1000 μm to <2000 μm ± 3%
Resolution <100 μm, 0.1 μm; ≥ 100 mm, 1 μm
Display format Digital (backlit LCD, smallest displayed unit 0.1 μm)
Data memory Approx. 1000 points
Application memory 8 Types of electromagnetic or eddy current methods,
total 16 Calibration curves
Power source 2x 1.5V Batteries ("AAA" size Alkaline)
Power consumption 40 mW (when backlight OFF)
Operating environmental 0-40°C
Functions Application memory (calibration curves), Measured data memory, Data delete, Data output, Lot classification, Auto power ON/OFF, Clock, Upper and lower limits, Statistical calculations, Backlight, Unit setting, etc, total 15 functions
External output Can be output to PC (USB) or printer (RS-232C)
Dimensions & weight 82(W) x 99.5(D) x 32(H) mm, approx. Net 160g.
Accessories Zero plate holder (Ferrous metal substrate, Aluminum substrate), Calibration plates (50, 100, 1000 _m), Carrying pouch, 2x 1.5V Batteries ("AAA" size Alkaline), Instructions, Wriststrap
Options Calibration plates (thicknesses other than those available as standard accessories), Measuring stand LW- 990, Printer VZ-330, Printer cable,USB PC cable, Transparent protective cover,Data Logger Software(LDL-01)