PCE-CT 100N Coating Thickness Gauge User Manual

: June 12, 2024
: PCE

Table of Contents

PCE-CT 100N Coating Thickness Gauge
Safety notes
Specifications
Package contents
Characteristics
Measuring Principles
Device Layout
Screen Layout
Operation Instructions
- Basic measurement steps
Calibration
Maintenance and Repair
Testing Probe Reference
Contact
Disposal
PCE Instruments’ contact information
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

PCE-CT 100N Coating Thickness Gauge

PCE-CT-100N-Coating-Thickness-Gauge-PRODUCT

Safety notes

Please read this manual carefully and completely before you use the device for the first time. The device may only be used by qualified personnel and repaired by PCE Instruments personnel.Damage or injuries caused by non- observance of the manual are excluded from our liability and not covered by our warranty.

The device must only be used as described in this instruction manual. If used otherwise, this can cause dangerous situations for the user and damage to the meter.
The instrument may only be used if the environmental conditions (temperature, relative humidity, …) are within the ranges stated in the technical specifications. Do not expose the device to extreme temperatures, direct sunlight, extreme humidity, or moisture.
Do not expose the device to shocks or strong vibrations.
The case should only be opened by qualified PCE Instruments personnel.
Never use the instrument when your hands are wet.
You must not make any technical changes to the device.
The appliance should only be cleaned with a damp cloth. Use only pH-neutral cleaner, no abrasives or solvents.
The device must only be used with accessories from PCE Instruments or equivalent.
Before each use, inspect the case for visible damage. If any damage is visible, do not use the device.
Do not use the instrument in explosive atmospheres.
The measurement range as stated in the specifications must not be exceeded under any circumstances.
Non-observance of the safety notes can cause damage to the device and injuries to the user.

We do not assume liability for printing errors or any other mistakes in this manual. We expressly point to our general guarantee terms which can be found in our general terms of business. If you have any questions please contact PCE Instruments. The contact details can be found at the end of this manual.

Specifications

Measurement range	0 … 1250 µm
Accuracy	±(1 % + 1 µm)
Resolution	0.1 µm (<99.9 µm)

1 µm (>100 µm)

Package contents

1 x Coating Thickness Gauge PCE-CT 100N
1 x NFe Probe
1 x Fe Probe
1 x USB-Storage
1 x Reference foil set
1 x Aluminium/Iron calibration plate
2 x 1.5 V AA Batteries

Characteristics

WIFI function
Touch screen
Uses magnetic and eddy current thickness measurement method to measure:
- magnetic metal substrate thickness of non-conductive coating
- thickness of non-magnetic coating layers
- non-magnetic metal substrates
Two probe types:
- Ferrous (Fe)
- Non-Ferrous (NFe)
Two measurement modes:
- Continuous measurement mode (CONTINUE)
- Single measurement mode (SINGLE)
- Both methods can be used to calibrate the instrument, while basic calibration methods can be used to detect system error corrections
Two operating modes:
- Direct mode (DIRECT)
- Group means (AB)
Five statistics:
- Average (MEAN)
- Maximum (MAX)
- Minimum (MIN)
- Number of tests (NO.)
- Standard deviation (S.DEV)
Storage function:
- 500 measurements for storage
Delete function:
- Single or multiple entry deletion
Threshold Setting
- For measured values outside of the gauge’s automatic alarm
USB Storage:
- measured values can be stored on a USB flash drive in text format
Beep alerts during operation
Automatic and manual shutdown

Measuring Principles

The gauge uses magnetic and eddy current thickness measurement methods. The non-destructive measurement can measure the thickness of magnetic metals (such as steel, iron, alloy steel) and hard magnetic and non-magnetic coatings (such as aluminum, chromium, copper, enamel, rubber, paint, etc.); the thickness of non-conductive coatings (such as enamel paint, plastic, rubber, etc.) of non- magnetic metals (such as copper, aluminium, zinc, tin, etc.).

Magnetic measurement method:

When the (Fe) probe comes into contact with a metal surface, the magnetic field will be amplified. It then generates a voltage in a second coil (measuring coil). This voltage depends on the distance from the metal surface. If a non-magnetic coating is present, a defined distance results between the probe and the metal surface, and thus a defined coil voltage. This is electronically evaluated and digitally displayed as the coating thickness.

Eddy current measuring method:

When the (NFe) probe with its alternating field approaches a non-ferrous metal, an alternating current – called the eddy current – is induced in this metal. This produces another electromagnetic alternating field in the opposite direction, weakening the original field. The effect in the probe is a change of inductiveness. By placing the probe in contact with the coating, a defined distance between the probe and the non-ferrous metal results, thus leading to a defined inductivity. This will be electronically evaluated and digitally displayed as the coating thickness.

Device Layout

PCE-CT-100N-Coating-Thickness-Gauge-FIG-1

Display Screen
Zero-In Calibration
Backlight
Navigation Keys
Menu
File Browser
Back
NFe Probe
Fe Probe
On/Off Switch
Probe Input
Stand
USB Port

Screen Layout

PCE-CT-100N-Coating-Thickness-Gauge-FIG-2

Measurement result
Measurement mode
File number
Measurement count
Battery status
Unit of measurement
Max threshold
Min threshold

Operation Instructions

Basic measurement steps

Sample piece surface preparation

The preparation of the sample surface must comply with the relevant requirements in chapter 11.
In the process of preparing the sample surface, the temperature on the sample surface should be avoided as much as possible.
If the surface to be tested is too rough, it will cause measurement errors. Therefore, the sample surface must be exposed to metallic luster and be smooth and oil-free.
Surface: A flat test surface is preferable. A sample surface with a radius of curvature of less than 30 mm must be tested with a small support ring or a profiled support ring.
Sample support
- For heavy sample pieces: no support is required
- For medium sized pieces: the sample must be placed on a flat, stable surface with no shaking.
The minimal sample surface thickness must comply with the requirements of Table 3.
For hard surface layers, the depth of the layer must comply with the requirements of Table 3.
Coupling:
- Light samples must be tightly coupled with a strong support. The two coupling surfaces must be flat and smooth, and the amount of coupling agent should not be excessive. The test direction must be perpendicular to the coupling plane.
- If the sample is a large-area plate, long rod, or bent; even if the weight or thickness are large, the sample piece may be deformed or unstable, this will result in inaccurate test values. Therefore, the sample should be reinforced or supported on the back side of the sample piece.
The sample surface should not exceed 30 Gauss.

Measurement process
Before measurement, the instrument can be tested with a random test block. The indication error and repeatability should not exceed the requirements of table 1.

Repeatability [µm]| 1-point calibration (µ)| ±(3 %H +

0.7)

| ±(3 %H

+ 1)

| ±(3 %H

+ 10)

| ±(3 %H

+ 0.7)

| ±(3 %H

+ 1.5)

| ±(3 %H

+ 1)

---|---|---|---|---|---|---|---
| 2-point calibration (m)| ±(1 %H +

0.7)

| ±(1 %H

+ 1)

| ±(1 %H

+ 10)

| ±(1 %H

+ 0.7)

| ±(1 %H

+ 1.5)

| –

Note: the random test block must be measured with a calibrated device.

Measurement procedure

Insert the probe into the probe input on the device.
The probe must be placed into the test sample. The probe, sample and operator must now remain perfectly stable and the probe should be as perfectly perpendicular to the sample as possible.
If the resulting value exceeds the measurable amount, the device will need to be calibrated separately with 5 test pieces.
The distance between any two indentations or the distance from the centre of any indentation must comply with table 2.

Distance between two indentation centres| Indentation centre distance from the edge of the sample
---|---
not less than| not less than
3mm| 5mm

Measurement setup

Press the Menu button to enter the Instrument Menu Settings screen; the screen displays the nine options for the first level menu.
Use the ◄ or ► buttons to navigate the menu to the measure icon.
Press the menu button (≡) to enter the measurement settings.
Press the back button to end the setup and return to the previous menu.

Unit setup

Use the ▲ and ▼buttons to navigate the menu to the unit select setting.
Use the ◄ or ► buttons to change the selected value.
Press the back button to end the setup and return to the previous menu.

Probe setup

Use the ▲ and ▼buttons to navigate the menu to the probe configuration.
Use the ◄ or ► buttons to change the selected value.
Press the back button to end the setup and return to the previous menu.
Probe replacement:
- Turn the device off
- Replace the probe
- Turn the device back on. The probe config. the setting has now been automatically changed.

Measurement mode

Use the ▲ and ▼buttons to navigate the menu to the measurement mode.
Use the ◄ or ► buttons to change the selected value.
Press the back button to end the setup and return to the previous menu.

Automatic storage

Use the ▲ and ▼buttons to navigate the menu to the save mode.
Use the ◄ or ► buttons to change the selected value.
Press the back button to end the setup and return to the previous menu.

Gauge settings

Press the Menu button to enter the Instrument Menu Settings screen.
Use the ◄ or ► buttons to navigate the menu to the gauge icon.
Press the menu button (≡) to enter the gauge settings.
Press the back button to end the setup and return to the previous menu.

Touch tone settings

Use the ▲ and ▼buttons to navigate the menu to the touch tone setting.
Use the ◄ or ► buttons to change between on and off.
Press the back button to end the setup and return to the previous menu.

Backlight settings

Use the ▲ and ▼buttons to navigate the menu to the backlight setting.
Use the ◄ or ► buttons to change between on and off.
Press the back button to end the setup and return to the previous menu.

Language settings

Use the ▲ and ▼buttons to navigate the menu to the language setting.
Use the ◄ or ► buttons to change between English and Chinese.
Press the back button to end the setup and return to the previous menu.

Auto shut down settings

Use the ▲ and ▼buttons to navigate the menu to the auto off setting.
Use the ◄ or ► buttons to change between on and off.
Press the back button to end the setup and return to the previous menu.

Data processing

The device has a variety of data processing functions, including onboard storage, browsing, and deletion of data. The data can be transferred in two ways:

The internal data can be transferred to a USB drive through the USB interface. This data can then be transferred from the USB drive onto a computer.
The data can be transferred over WIFI to another device (mobile/PC).

USB memory
The device can directly store data to a USB drive. The USB port can only be used to store data to a USB drive; it cannot be used to connect the device directly to a PC.

Press the Menu button to enter the Instrument Menu Settings screen.
Use the navigational buttons to navigate the menu to the USB icon.
Press the menu button (≡) to enter the USB settings.
Insert a USB drive into the USB port and press the menu button (≡) to begin the data storage process.
A message box with “Ok!” will be displayed once the process is complete.
Press the back button to end the setup and return to the previous menu.
The data can now be read from the USB drive either on a PC or with the file browser on the device.

WIFI connection
The device can transfer data over WIFI to another device (mobile/PC).

Transfer the app from the USB pen drive to your computer.
Then connect your Android device to your computer and transfer the app file to your Android device.
Open the file and install the app.
Start the WiFi connection on the PCE-CT 100N.
Connect your Android device to the PCE-CT 100N via WiFi.
In the Android device, select the option “Measurement” to receive the values.
Press the MENU key on the meter. In the menu, you have the following options:
- Send group – here you can select what memory group you would like to transfer to your Android device
- Real time – send data in real time
- Turn off WiFi
After selecting one of the two options, the readings will be displayed directly.
After receiving the values, you can save these as a picture, as .pdf or .txt files.

File processing

Press the Menu button to enter the Instrument Menu Settings screen.
Use the navigational buttons to navigate the menu to the data icon.
Press the menu button (≡) to enter the data settings.
Select the File No. setting and use the ◄ or ► buttons to change the file set number. The device supports up to 5 file sets.
Select the File Browser and use the ▼ to ▲ buttons to navigate the 5 file sets. Use the menu button (≡) to view a file set. Each file set can contain up to 28 data sets.
Select File Clear and use the menu button (≡) to confirm the process. The entire selected file set will be cleared.

Calibration

The device and impact probe must be calibrated with a coating thickness matrix before first use or after a prolonged period of non-use.

Press the Menu button to enter the Instrument Menu Settings screen.
Use the navigational buttons to navigate the menu to the calibrate icon.
Press the menu button (≡) to enter the data settings.
- measurements must be performed vertically down into the provided substrate; the first is a zero calibration (without the substrate).
Use the ▲ or ▼ buttons to adjust the value to the nominal thickness of the standard test substrate for each measurement.
Perform a total of 5 measurements; one test for one test foil.
Press the menu button (≡) to save and exit the calibration process.

Maintenance and Repair

Environmental requirements
Strictly avoid collisions, heavy dust, moisture, strong magnetic fields, oil stains, and other dirtying or damaging factors.

Battery replacement
The battery life for this is typically 3 years. After the batteries fail, the user can replace them as follows:

Switch the device off.
Unscrew and separate the battery cover on the back of the main unit.
Replace the drained batteries.
Replace the cover and tighten the screw.

Testing Probe Reference

Organic coatings reference table

Coating

Base

| Organic materials and other non-metallic coatings (such as: paint, enamel, etc.)
---|---
Cover thickness < 100µm| ****

Cover thickness > 100µm

Magnetic metal (Iron, Steel, etc.)

| ****

Measuring area > 30mm

| F400: 0~400µm F1: 0~1250µm| F400: 0~400µm

F1: 0~1250µm F10: 0~10mm

Measuring area < 30mm

| ****

F400: 0~400µm

| F1: 0~1250µm F400: 0~400µm

Copper, Aluminium, Tin, etc.

| ****

Measuring area > 10mm

| N400: 0~400µm N1: 0~1250µm| N400: 0~400µm

N1: 0~10mm

Measuring area < 10mm

| ****

N400: 0~400µm

| N1: 0~1250µm N400: 0~400µm

Non-magnetic metal coatings reference table

Coating

Probe

| Non-magnetic metal layer (such as: chromium, zinc, aluminium, copper, tin, silver, etc.)
---|---
Cover thickness < 100µm| ****

Cover thickness > 100µm

Magnetic metal (Iron, Steel, etc.)

| ****

Measuring area > 30mm

| F400: 0~400µm F1: 0~1250µm| F400: 0~400µm F1: 0~1250µm F10: 0~10mm

Measuring area < 30mm

| ****

F400: 0~400µm

| F1: 0~1250µm F400: 0~400µm

Copper, Aluminium, Tin, etc.

| ****

Measuring area > 10mm

| Only for copper plating N400: 0~40µm| ****

……….

Measuring area < 10mm

| ****

……….

| ****

……….

Plastic, non- metal base| ****

Measuring area > 7mm

| ****

Cn02: 10~200µm

| ****

Cn02: 10~200µm

Contact

If you have any questions, suggestions or technical problems, please do not hesitate to contact us. You will find the relevant contact information at the end of this user manual.

Disposal

For the disposal of batteries in the EU, the 2006/66/EC directive of the European Parliament applies. Due to the contained pollutants, batteries must not be disposed of as household waste. They must be given to collection points designed for that purpose. In order to comply with the EU directive 2012/19/EU we take our devices back. We either re-use them or give them to a recycling company which disposes of the devices in line with law. For countries outside the EU, batteries and devices should be disposed of in accordance with your local waste regulations. If you have any questions, please contact PCE Instruments.