PeakTech 5220 Coating Thickness Gauge User Manual

: June 3, 2024
: PeakTech

Table of Contents

PeakTech 5220 Coating Thickness Gauge
Safety Precautions
Introduction
Panel description
Specifications
Operation
User Interface
Calibration
Maintenance
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PeakTech 5220 Coating Thickness Gauge

Safety Precautions

This product complies with the requirements of the following directives of the European Union for CE conformity: 2014/30/EU (electromagnetic compatibility), 2011/65/EU (RoHS). To ensure safe operation of the equipment and eliminate the danger of serious injury due to short-circuits (arcing), the following safety precautions must be observed. Damages resulting from failure to observe these safety precautions are exempt from any legal claims whatever.

Do not operate the meter before the cabinet has been closed and screwed safely.
Check test leads and probes for faulty insulation or bare wires before connection to the equipment.
Comply with the warning labels and other info on the equipment.
Do not subject the equipment to direct sunlight or extreme temperatures, humidity or dampness.
Do not subject the equipment to shocks or strong vibrations.
Do not operate the equipment near strong magnetic fields (motors, transformers etc.).
Keep hot soldering irons or guns away from the equipment.
Allow the equipment to stabilize at room temperature before taking upmeasurement (important for exact measurements).
Replace the battery as soon as the battery indicator “BAT” appears. With a low battery, the meter might produce false reading.
Fetch out the battery when the meter will not be used for long period.
Do not modify the equipment in any way
Periodically wipe the cabinet with a damp cloth and mid detergent. Do not use abrasives or solvents. The meter is suitable for indoor use only Do not store the meter in a place of explosive, inflammable substances.
Opening the equipment and service – and repair work must only be performed by qualified service personnel
Measuring instruments don’t belong to children hands.

Cleaning the cabinet
Clean only with a damp, soft cloth and a commercially available mild household cleanser. Ensure that no water gets inside the equipment to prevent possible shorts and damage to the equipment.

Introduction

This compact measuring device can be used for non-destructive coating thickness measurement of nonmagnetic layers, such as Paint, lacquer, chromium to steel, and insulating coatings on non-ferrous metals, such as Paint and anodizing are used.
Features

128*128 dot matrix LCD display, standard menu operations;
Two measure mode: single and continuous;
Two group mode: direct (DIR) and general (GEN), readings will be lost when power off in direct mode, and not be lost in general mode. 80 readings can be stored for each group;
Zero point calibration and multi-point calibration (up to 4 points) for each group;
User can recall, delete specified readings, or delete group readings;
Statistics display: mean, minimum, maximum and standard deviation;
Three probe mode: auto, magnetic and eddy current;
User can set high or low limit alarm for each group;
Power off automatically;
USB interface to data transmission;
Low battery and error indication;

Application
This gauge is designed for non-destructive, fast and precise coating thickness measurement. The principal applications lie in the field of corrosion protection. It is ideal for manufacturers and their customers, for offices and specialist advisers, for paint shops and electroplaters, for the chemical, automobile, ship building and aircraft industries and for heavy engineering. It is suitable for laboratory, workshop and outdoor use.

Principle of Measurement
The coating thickness gauge work either on the magnetic induction principle or on the eddy current principle, depending on the type of probe used. This gauge has internal F probe and N probe. F probe work on magnetic induction principle and should be used for non-magnetic coatings such as aluminium, chrome, copper, zinc, paint and varnish, enamel, Vrubber etc., on an iron or steel substrate; It is also suitable for alloyed and hardened magnetic steel(however, not suitable for austenic steel). N Probe work on the eddy current principle and should be used for insulating coatings e.g. paint, anodizing, ceramics, etc., on all non-ferrous metals such as aluminium, copper, zinc die casting, brass etc., and on austenitic stainless steels.

Auspacken des Gerätes und Überprüfen des Lieferumfanges
Take the unit out of the packaging and check the delivery for completeness.
The package includes:

1x Coating Thickness gauge
1x Aluminium-Substrate
1x Standard foil
1x USB Kabel
2x 1,5 V AAA batteries
1x operation manual

Damage or missing parts please inform your distributor.

Panel description

PeakTech-5220-Coating-Thickness-Gauge-fig1

1	LCD-display
2	Button für calibration function
3	Power button
4	– button
5	Left key: Menu, Select, OK
6	– button
7	Probe
8	Standard foil
9	Substrate
10	V groove
11	Right key: Cancel, Exit, Back, Backlight
12	Button for Zero-Calibration
13	USB-interface

Description of the display

PeakTech-5220-Coating-Thickness-Gauge-fig4

1	Current work group (DIR and GEN n, n=1-4)
2

Specifications

| Probe F| Probe N
---|---|---
Measuring principle| Magnetic Induction| Eddy Currents
Measuring range| 0 … 1300µm (0 … 51,2 mils)
Accuracy| ±(3,0% + 2 µm)

± (3,0% + 0,078 mils

calibration, Basic

Data groups

| One direct group (readings not be stored to memory) Four general group (readings will be stored automatically)

Note:

Each group have individual statistics, alarm limit settings and calibration.

Statistics| Number of readings, mean, minimum, maximum

and standard deviation

Units| µm, mm, mils
Alarm settings| User can set the high/low alarm limit

Alarm icon displayed on LCD when over the limit.

Minimum curvature radius (convex)| 1,5mm
Minimum curvature radius (concave)| 25mm
Minimum measuring

area

| diameter 6mm
Minimum thickness of

substarte

20 … 80%RH

Storage temperature| -10 … +70°C (14 …158°F)

20 … 80% RH

Dimensions| 110 x 53 x 24 mm
Weight| 115 g

Operation

Faktoren mit Auswirkung auf die Messgenauigkeit
User needs to know the factors of affecting measurement accuracy before using the gauge. The factors are listed as below.

Principle

Factors

|

Magnetic

|

Eddy Current

|

Recommendations

---|---|---|---
Magnetic Properties| | | Need to calibrate
Electrical properties| | | Need to calibrate
Curvature radius| | |

Reference the chapter

4. Specifications and need to calibrate

soft or too thin material

environment conditions

The measured sample must correspond to the calibration sample in substrate material properties, curvature radius, or the more closely the measured sample matches the calibration sample, the more accurate the measuring. In addition, curvature radius should meet the minimum value as specified in chapter 4. The minimum substrate thickness and the minimum measuring areas as specified in chapter 4 should be taken into account. Need to recalibrate (Zero/Multi-point) for different measured sample for higher accuracy. To achieve high-accuracy readings, it is advisable to log calibration values severaltimes. In this way, the gauge will automatically establish a mean calibration value. The high- accuracy calibration is an obvious advantage when calibrating on unevenand rough surfaces. The point at which measurement is made should always be similar with the calibration point, especially in the case of corners and edges of small parts. Important Note: The enclosed substrates are intended for checking accuracy only and not for calibration purposes. User must recalibrate the gauge according to practical applications.

Basic Measurement Step

Prepare the sample to be measured.
Place the gauge in open space, at least 5cm away from any metal, and press key to power on.
Note:
- If displayed, the battery is OK. Or if displayed, the battery capacity is low, and measurement will be not reliable, and you need to replace the battery.
- The gauge will work in factory default settings for the first time, including single measure mode, AUTO probe mode, direct group mode (DIR) etc.
- When power on, if in direct group mode (DIR), the readings display area is empty, or if in general group mode (Genn, n=1 to 4), it will display the last readings and statistics value measured before power off last time.
Reference to the chapter 3 to decide whether need to calibrate the gauge.
Start measuring. Place the probe on the sample vertically and rapidly, and after one beep (for single measure mode), raise the probe rapidly. Readings will be display on LCD, meanwhile statistics value are upgraded anddisplayed.
Do next measurement according to step 4.
Press to power off. If not any operations within 3 min., the gauge will power off automatically.

Note:

There are three ranks (P … rank 3; P .. rank 2; P . rank 1) of instability indications for the probe on the LCD. When shown, probe is unstable seriously, and measuring will be no reaction until probe more stable.
If a suspicious reading is measured, user can delete it through pressing the ZERO key once.
Each time raise the probe, you must wait for about 1sec. with probe in open space and 5cm away from metal.

User Interface

1	Main Menu
2	Sub-Menu
3	Active Item
4	Menu Item
5	Left Button
6	Right Button

Measure – Mode

Key Definition

| Power On/Off
---|---
****| a. To enter into menu mode from measure mode

b. Left button operations in menu mode (Including “Sure”, “Select”, “Delete”)

****| a. Right button operations in menu mode (Including “Cancel”, “Back”, “Exit”)

b. Switch on/off the backlight in measure mode

| a. Move up or roll up

b. Increasing

| a. Move down or roll down

b. Decreasing

****| Zero Calibration Key

a. Press and hold to zero calibration in calibration mode

b. Press once to delete current readings in measure mode

c. Press once to back measure mode in menu mode

d. Press and hold when power on to make system reset- This will restore factory settings

| ****

Enter into calibration mode and back measure mode

Measure Mode (Single or Continuous)
Single measure mode:
Single measure mode-Place the probe on sample vertically and rapidly, and after one beep, raise it rapidly. Meanwhile, readings will be shown and statistics will be upgraded and be shown.
Continuous measure mode:
Place the probe on sample, and don’t raise the probe, the measurement will be done continuously in a certain cycle. Follow these steps to select the desired measurement mode:

Press once to enter into menu mode (“Root” directory)
Press or to activate „Options“ item and press once to select the item.
Press or to activate „Measure Mode“ item and press once to select the item.
Press or to activate your intended item and press .
Note: The symbol „√ „ indicates current setting.
Press to get back to measure mode.

Group-Mode
Direct Group (DIR)

Be intended for quick occasional readings. In this mode, data are temporarily stored in RAM, it will be lost when power off. The readings and statistics can be shown on the LCD. The RAM can store up to 80 readings. When the RAM is full, measuring will continue, the oldest readings will be deleted mean while the new readings is stored. Each new readings is stored, the statistics will be upgraded and shown.

General Group (GENn: n= 1 to 4)

In this mode, data are stored in memory and not lost when power off. The memory can store up to 80 readings. When the memory is full, measuring will continue, a “fl” will be shown on the left of readings, the new readings will not be stored, and statistics will not be upgraded.

NOTE:
Each group (DIR or GEN) has individual high/low limit alarm, zero calibration and multi-point calibration, and these settings will stored in memory when user changes them. Follow these steps to select the desired group mode:

Press to enter into menu-mode (“Root” directory)
Press or to activate „Options“ item and press to enter in
Press or to activate „Group mode“ item and press once to enter in.
Press or to activate your intended item and press once to select item and go back.
Note: The symbol „√ „ indicates current setting.
Press to get back to measure mode.

Statistics
The gauge calculates the statistics for stored readings of each group independently, including mean, minimum, maximum and standard deviation. In direct group mode, when RAM is full, the oldest readings will be deleted meanwhile the new readings will be stored, and the statistics will be upgraded. In general group mode, when memory is full, new readings will not be stored and the statistics will not be upgraded. If user deletes the specified readings or whole group readings, the statistics will also be upgraded. The statistics will be displayed on the LCD in default.
Probe mode
There are three probe modes: AUTO, MAG and EDDY. In AUTO mode, the probe can automatically determine the type of substrate measured. In MAG mode, the probe can only measure on magnetic substrates. In EDDY mode, the probe can only measure on non-ferrous metal substrates. When a magnetic substrate detected, an “F” will be shown on the right of readings, and when a non-ferrous metal detected, an “N” will be shown. User can switch probe mode as below.

Press once to enter into menu mode („Root“ directory)
Press or to activate „Options“ item and press once to enter in
Press or to activate „Probe mode” once to enter in
Press or to activate your intended item and press to select AUTO, FE or N-FE.
Press to get back to measure mode.

Storage mode
In general group mode (GENn), readings and statistics will be stored and not be lost when power off. In direct group mode (DIR), readings and statistics will be lost when the power off. Each group has individual high/low limit alarm, zero calibration and multi-point calibrations, user can change these settings, and they will be stored. In addition, user can set the system settings (e.g.: Measure Mode, Group Mode, Probe Mode etc.), these settings will also be stored.
Note:
When the battery low, user must replace the battery timely. Before replacing the battery, you need to power off the gauge first.

Recall and Delete Readings
Delete the last readings
(Tips: If in measure mode, press to delete the last value by one beep).

Press once to enter into menu mode (”Root” directory);
Press or to activate “Delete Data” item, and press once to enter in
Press or to activate the” Current Data” item, and press once. A dialog box will be displayed.
Press once to confirm the selection or to cancel and go back.
Press to back measure mode.

Delete whole group readings

Press once to enter into menu mode (”Root” directory);
Press or to activate the “Delete Data” item, and press once to enter in
Press or to activate “Current Group” item, and press once. A dialog box will be displayed.
Press once to confirm the selection and go back, or to cancel and go back. Press to back measure mode.

Recall and delete specified readings

Press once to enter into menu mode (”Root” directory);
Press or to activate the “Recall” item, and press “Left Key” once to enter in
Press or recall the readings (n/Total number, “n” indicates the index of currently shown readings). Press to delete the current shown reading.
Press to go back. Press to back measure mode.

Note:
While readings are deleted, the statistics will be upgraded automatically.

High and Low Limit Alarm
Each group has individual high/low limit alarm settings. When switch the workgroup, the applied alarm settings will also be switched automatically. Set high/low limit for the current workgroup as below.

Press once to enter into menu mode (”Root” directory);
Press or to activate the “Limit” item, and press once to enter in;
Press or to activate the “Settings” item, and press once to enter in;
Press or to activate your intended item, and press once to enter in;
Press or to increase or decrease the limit value. If hold the key, the limit value will be increased or decreased continuously.
Press to confirm new limit value, or to cancel and back. Press to back measure mode.

Clear high/low limit

Press once to enter into menu mode (”Root” directory);
Press or to activate “Limit” item, and press once to enter in;
Press or to activate “Clear” item, and press once. A dialog box will be displayed.
Press once to confirm the selection and go back, or to cancel and back. Press to back measure mode.

Note:
While readings exceed high limit, the alarm symbol will be shown on the LCD, and while readings exceed low limit, the alarm symbol will be shown.

Unit
The unit of the displayed values (Including um, mm and mils) can be changed. Switch the unit as below:

Press once to enter into menu mode (”Root” directory);
Press or to activate the “Options” item, and press once to enter in;
Press or to activate the “Unit Settings” item, and press once to enter in;
Press or to select an intended item. Press to confirm it.

Backlight
With dim lighting, the backlighting of the unit can be switched on for a better reading of the display. To turn on/off the backlight, press in the measurement mode.
Note:
The backlight increases the power consumption of the device.
Data Download
The user can use the USB cable to connect the meter to a PC and downloading stored readings. If the USB cable is connected, the icon will be displayed at the bottom of the display. If the device is connected for the first time to the PC, Windows will ask for the necessary USB drivers for the device and install it. You can then install the application software. The USB driver, as well as the associated software can be found on the attached CD.

Auto Power off
You can power off via key manually. To conserve battery and extend the life of the battery, the device has an automatic power-off function. If the meter is not used for several minutes, the device will automatically turn off. Before the unit is automatically turned off, you will hear a series of beeps. Is now pressed a button in a timely manner, the timer is reset. It is possible to enable or disable this feature, as described below:

Press once to enter into menu mode (”Root” directory);
Press or to activate “Options” item, and press once to enter in;
Press or to activate “Auto Power off” item, and press once to enter in;
Press or to select intended item. Press to confirm it.

Measurement Accuracy
Various factors may affect the accuracy of measurement. Please refer to Section 5.1 of this manual. With normal use and careful calibration, all subsequent measurements are within the guaranteed measuring tolerance. When using the statistical values, it is advisable to obtain a mean value to place the probe repeatedly in a typical spot or at a fixed measuring point. Any false readings or outliers can be deleted immediately.The last measured value is derived from the statistical calculation and from the guaranteed tolerance limits of the sensor.T (Beschichtungsdicke) = M (Mittelwert) ± S (Standardabweichung) ± A (Messgenauigkeit).

Calibration

User should read the chapter 3 firstly, and must recalibrate the gauge according to measured product sample. The gauge provides basic calibration, zero calibration and multi-point calibration.

Basic calibration:
Also be the factory default calibration, can only for measurement on even surfaces and if the measuring object has the same material, curvature, and size as the factory provided substrates. For more details, please consult withyour supplier.
Zero calibration:
Recommended if measuring errors up to ± (3%+2um).
Multi-point calibration:
The permitted measuring errors will be max. ± (1~3%+2um). If only one point calibration, it is recommended if readings to be expected will be close to the calibration value. If more than one point calibration, it is recommended for measurements on rough surfaces or for precise measurements on smooth surfaces if thickness to be expected lies between that of calibration point.

Zero Calibration

In measure mode, press “CAL key” once to enter into calibration mode.
Place the probe on uncoated sample and raise it after one beep. The LCD will show ”X”.
Press and hold “ZERO Key” until hearing “beep…beep beep…”. The LCD will show “0” and “ZERO” symbol.
Repeat step b and c several times to obtain mean value.
Finished. Press “CAL Key” to exit calibration mode.

Multi-point Calibration

In measure mode, press “CAL key” once to enter into calibration mode.
Zero calibration according to chapter 4.1 and then lay the calibration foil on an uncoated sample.
Apply the probe and raise it after one beep. A reading will be shown. Press “Up Key” or “Down Key” to increase or decrease the readings or hold the key for changing continuously until the required foil thickness value shown. The LCD will show current calibration point “Ptn X ”. The “X” will be flashing.
Apply the probe to the test sample several times, and every time raise the probe, if press “CAL Key”, after “beep…beep beep…”, it will establish a mean value for current calibration point.
Press “Left Key” to confirm and end current calibration point, and the “X” will be steady. Or press “Right Key” to cancel and end current calibration point.
For more calibration points, use another calibration foil and repeat the step c, d and e.
Finished. Press “CAL Key” to exit calibration mode.

Note:

Each group has individual zero calibration and multi-point calibration.
When calibration up to 4 points, user must clear the finished points firstly to restart.
Readings measured before will not be affected by new calibration.
In calibration mode, measuring will not be affected.
Recommended to work in single measure mode when calibrating.

Shot-blasted Surfaces
The physical nature of shot-blasted surfaces results in coating thickness readings that are too high. The mean thickness over the peaks can be determined as follows.
Method one:

The gauge should be calibrated according to 4.2(one or more point calibration). Use a smooth calibration sample with the same curvature radius and the same substrate as the later measuring sample
Take approx. 10 readings on the uncoated, shot-blasted sample to produce the mean value A.
Take approx. 10 further readings on the coated, shot-blasted test sample to produce the mean value B.
The coating thickness T = (B-A) ± S. The “S” is the greater standard deviation of step b and step c.

Method two:

The gauge should be calibrated according to 4.2(one or more points calibration) on the shot-blasted sample.
Take approx. 10 readings on the test sample to produce the mean value that used as final coating thickness.

Clear Calibration
User can clear calibration to start new applications. When there are incorrect calibration, User should also clear it.

Press “Left Key” once to enter into menu mode (”Root” directory);
Press “Up Key” or “Down Key” to activate “Calibration” item, and press “Left Key” once to enter in;
Press “Up Key” or “Down Key” to activate “Clear All” item (Note: User can decide to clear only part of them, please see the menu for details), and press “Left Key” once. A dialog box will be displayed.
Press “Left Key” once to confirm the selection and go back, or “Right Key” to cancel and back.

Maintenance

The removal of the rear case as well as maintenance and repair work must be performed by qualified personnel. Use only a soft, dry cloth to clean the housing. Never clean the housing with solvents or abrasive-containing cleaning agents.
Replacing the battery
For illumination of the Battery condition indicator , the batteries are exhausted and must be replaced as soon as possible. Proceed as described for battery replacement:

Switch off the unit and loosen the screw of the battery cover with a screwdriver and remove the battery compartment cover.
Remove batteries from the battery compartment and replace them with two new 1.5V AAA batteries.
Replace battery cover and secure it with the screw.

Note:
Batteries which are used up, dispose duly. Used up batteries are hazardous and must be given in for this being supposed collective container. Do not operate the device, when it is not completely closed.

Notification about the Battery Regulation
The delivery of many devices includes batteries, which for example serve to operate the remote control. There also could be batteries or accumulators built into the device itself. In connection with the sale of these batteries or accumulators, we are obliged under the Battery Regulations to notify our customers of the following: Please dispose of old batteries at a council collection point or return them to a local shop at no cost. The disposal in domestic refuse is strictly forbidden according to the Battery Regulations. You can return used batteries obtained from us at no charge at the address on the last side in this manual or by posting with sufficient stamps. Contaminated batteries shall be marked with a symbol consisting of a crossed- out refuse bin and the chemical symbol (Cd, Hg or Pb) of the heavy metal which is responsible for the classification as pollutant:

“Cd” means cadmium.
“Hg” means mercury.
“Pb” stands for lead.

All rights, also for translation, reprinting and copy of this manual or parts are reserved. Reproduction of all kinds (photocopy, microfilm or other) only by written permission of the publisher. This manual considers the latest technical knowing. Technical changings which are in the interest of progress reserved. We herewith confirm, that the units are calibrated by the factory according to thespecifications as per the technical specifications. We recommend to calibrate the unit again, after 1 year. PeakTech® 08/2021 MP/Ehr.

PeakTech Prüf- und Messtechnik GmbH
– Gerstenstieg 4 – DE-22926 Ahrensburg / Germany
+49-(0) 4102-97398 80 +49-(0) 4102-97398 99
info@peaktech.de www.peaktech.de