Lantai CM-8826fn Coating Thickness Gauge operating instructions

1. Features

*This instrument is a battery-powered portable measuring instrument , which uses the principle of magnetic induction and eddy current. The measurement method conforms to international standards ISO2178, ISO2360 and national standards GB4956, GB4957. It uses computer technology , non-destructive testing technology and other professional technologies to accurately measure the thickness of the measured object without damaging it.

*F-type probe can directly measure the thickness of non-magnetic coating layer (such as: paint, plastic, enamel, copper, aluminum, zinc, chromium, etc. ) on the surface of magnetic conductive material (such as iron, nickel ). It can be applied to the thickness measurement of electroplating layer, paint layer, enamel layer, aluminum tile, copper tile, babbitt tile, phosphating layer, paper, and also can be used for thickness measurement of hull paint and attachments of underwater structural parts.

*NF-type probe can measure the thickness of the insulating , such as paint, plastic, rubber coating on the surface of aluminum, copper, zinc, non-magnetic stainless steel and other materials , and can also measure aluminum or aluminum The thickness of the anodic oxide layer of the alloy material .

*The spring guide sleeve probe with wear-resistant hard metal probe can not only measure on hard or rough surfaces, but also ensure that the probe has constant pressing force and stable sampling value.

*Digital display, wide measuring range and high resolution.

* Automatic memory calibration value, easy to use.

*Sturdy and delicate structure, easy to carry.

* Integrated structure, small size and light weight.

*Using optional RS232C software and cables, it can communicate with PC computer to realize data collection, processing, analysis and printing functions.

*The instrument is equipped with automatic shutdown to realize power saving function.

2. Specification

Display: 4-digit 10mm LCD

Lantai CM-8826fn coating Thickness Gauge test range: 0~1250 um

Other measuring ranges need to be ordered separately.

Resolution: 0.1um/1um

Measurement accuracy: ±1~3%n or ±2.5 um

It has the function of automatically identifying the probe type.

Measurement mode: single measurement and continuous measurement.

It has the conversion function of metric and imperial units to realize um/mil conversion.

With a standard RS232C interface.

Power supply: 4 AAA batteries.

Operating conditions: temperature 0~40°C, humidity <80%

Dimensions: 126x65x27mm

Weight: 81 g (excluding battery)

Standard accessories:

Carrying case...................................1pc

Iron base.................................... 1 block

Aluminum base.................................... 1 piece

Instructions...................................1 copy

Calibration diaphragm

CM50...................................1 piece

CM100...............1 piece

CM300 ................................. 1 piece

CM500 ................................. 1 piece

(The actual thickness of the diaphragm is marked on the diaphragm)

Optional accessories:

RS232C communication cable and software

4. measurement procedure

4.1 Press the power button (3-6) lightly, after turning on the power of the whole machine, the instrument will automatically enter the measurement state, and automatically restore the parameter settings before the last shutdown.

4.2 After confirming that the calibration is correct, the measurement . If there is any doubt about the previous calibration, another calibration should be performed. The specific method of calibration is detailed in the calibration part of the instrument. Once the instrument is calibrated, the calibration result will be automatically stored in the instrument, and it is not necessary to calibrate again when the instrument is turned on for measurement next time, unless there is doubt about the accuracy of the measurement.

4.3将测量传感器压紧到被测涂层上,显示器上的值即为待测涂层的测量值。注意：由于所有的磁性涂层测厚仪都是采用电磁感应原理；非磁性涂层测厚仪采用电涡流的原理，因此，一定要注意探头压上被测体的速度不能太慢。否则，会造成人为测量误差。

4.4要进行下次测量,需要将测量传感器提起到1厘米以上,然后再重复4.3。

4.5如有必要，测量值可通过加1键或减1键来修正。南北潮提示您：按加1键或减1键修正时，测量探头一定提起，否则，按加1键或减1键无效。

4.6要更换测量单位，实现mm和mil的转换，只要轻按一下单位转换键3-7即可。

4.7要更换测量模式，实现单次测量和连续测量的转换，只要轻按一下连续/单次转换键3-9即可。另一方面，也可以通过轻按电源键不放，直到显示器上出现SC才松开按键（从按下电源键到出现SC大约需要9秒钟）。然后，再按一下ZERO键即可。若显示器上有符号，表示测量模式为连续测量，测量时，蜂鸣器不响。否则为单次测量模式，每测量一次，蜂鸣器都响一下。

4.8测量完毕,轻按电源键关断电源。本仪器设有两种关机方式，即手动关机和自动关机。在任何时侯，只要轻按一下电源键，就可手动关断整机电源;另一方面,若在50秒钟的时间内，未按动任何按键，则会自动关机，以实现省电功能。

5.仪器校准

5.1校零

5.1.1将测量探头压在基准块上(或不带涂层的测量体上)，再轻按一下校零键ZERO进行校零。在按ZERO键时，测量探头在基准块上不要晃动。同时要注意，只有在按完ZERO键后，才能提起探头，否则，校零不正确。

5.1.2将测量探头提起1厘米以上，然后再将探头以正常的速度压放到基准块上(或不带涂层的测量体上),观察基准块上同一点的测量值，若测量值在0附近，说明校零成功，否则，应重新校零。

5.2校满度

5.2.1According to要测量的涂层厚度，选择适当的标准膜片，进行满度校准。

5.2.2先将标准膜片放在基准块上(或不带涂层的测量体上)。

5.2.3再将测量探头压在标准膜片上，测量值就显示在显示器上，若测量值与标准膜片不同，测量值可通过加1键或减1键来修正。

5.2.4为保证校满度的准确性，可通过多次测量同一标准膜片来验证。

6. 测量注意事项

6.1 Selection principle of reference block The selection of reference block should be consistent with the selected probe. When selecting iron-based F probe, the reference block should use iron base; when selecting non-ferrous base N probe, the reference block should use aluminum base.

6.2 In order to reduce the influence of the material of the measuring body on the measurement accuracy, it is recommended to use the measuring body without coating or the standard test block with the same material as the reference block for calibration.

6.3 After the measurement is completed, press the power button lightly to turn off the power . If it is not used for a long period of time, it is recommended to apply a little grease on the contact of the measuring head and the reference block to prevent rust.

6.4 The instrument should be protected from severe vibration and impact. After use, wipe off the oil on the surface of the instrument and put it in the instrument box for safekeeping.

6.5 It is strictly forbidden to knock or collide with the probe so as not to affect the performance of the probe.

7. Replace the battery

7.1 When the battery voltage is about 5V, the battery symbol will appear on the display, and the battery needs to be replaced.

7.2 Open the battery cover and take out the battery.

7.3 Install the battery correctly according to the label on the battery box.

7.4 If the meter will not be used for a long period of time, please take out the battery to prevent the battery from rot and damage the meter.

8. Connect with computer

According to the label on the battery box, the optional RS232C software and cable can be used to communicate with the PC computer to realize the functions of data collection, processing, analysis and printing. Please refer to the online instructions for specific Install the battery correctly.