GOLDANALYTIX GOLDSCREENPEN Handheld Gold Tester Instruction Manual

Instruction Manual

G-A-0009, July 2022 – Rev. 2, 08/23
© 2023 MARAWE GmbH & Co. KG, All rights reserved. Printed in the EU.
All product names in this manual are trademarks of their respective owners.

Introduction

Congratulations on your purchase of the Goldanalytix GoldScreenPen. The Goldanalytix GoldScreenPen is a handheld tester which determines the electrical conductivity of precious metal objects, especially coins and small ingots, without destroying them. This device was primarily developed for the authenticity testing of smaller precious metal coins and bars. However, the GoldScreenPen is also suitable for the determination of base metals (e.g. in the recycling sector for the identification of high-value tinware or silver cutlery).
Goldanalytix, established in 2012, is the leading provider of precious metal testing methods in Germany. With the GoldScreenPen, we offer a testing device for measuring the electrical conductivity through inductive eddy current measurement. This  easurement method allows for testing up to a depth of approx. 500 µm (depending on the alloy) and is thus suitable as the sole method for objects up to 1 ounce. The probe tip is equipped with one of the smallest sensor coils worldwide, which makes it possible to determine the conductivity even at tiny contact areas.
By the way: On our homepage at www.gold-analytix.com you will always find the latest version of the instruction manual, so that you can keep up to date with new types of forgery and findings around precious metal testing.

Safety Instructions

IMPORTANT : Please read this instruction manual carefully before using the GoldScreenPen for the first time. This is for your own safety and to ensure proper operation of the device. Keep the instruction manual in a safe and easily accessible place and, if necessary, pass it on to subsequent users. When using the GoldScreenPen, please follow the safety instructions.
Definition of signal words and warning symbols:
Safety instructions are marked with signal words and warning symbols. Disregarding the safety instructions can lead to personal danger, damage, and malfunction of the device, as well as incorrect results.
Signal words:
CAUTION! Indicates a low-risk hazard which, if not avoided, could result in minor or moderate injury and damage to the device or property.
Warning symbols :
General warning: This warning symbol is intended to alert the user to potential hazards. All instructions following this warning symbol must be followed to avoid possible injury or damage to the device.

Product-specific safety instructions:
Intended use:

CAUTION! Do not use the device for any purpose other than the intended use described in this instruction manual.

• This device is designed for the use in precious metals testing and is suitable for measuring the electrical conductivity. Goldanalytix is not liable for damage resulting from improper use.

Device compatibility:
CAUTION! Only use the supplied charger. The use of inferior or incompatible chargers may result in malfunction, damage to the battery and internal electronics, and/or injury.
Repair and modifications:
CAUTION! To avoid damage to the device and/or personal injury, do not dismantle the device or attempt any modifications or repairs. If you encounter any problems with the GoldScreenPen, please contact Goldanalytix (for contact details, see page 24).

• The device does not contain any parts that can be maintained, repaired or replaced by the user. The device does not require any special maintenance.
• Do not open, modify, or rebuild the device. Opening the device can cause considerable damage to the device. This may invalidate the warranty. The repair costs are to be borne by the user.
• Repairs by unauthorized persons may endanger the user. Repairs may only be carried out by Goldanalytix itself.

Operating conditions:

• Never use the device near explosive gases, vapors, dust or in a damp/wet environment.
  Protect the device from moisture and humidity. Make sure that no liquid gets inside the device and wipe off spilled liquids immediately.

• Please operate the device at room temperature and not in direct proximity of heat sources (e.g. next to the fan output of a laptop). Avoid temperature changes. Although the temperature-dependent measured values can be adjusted by calibrating the device,
  the measurement accuracy is highest at room temperature (22 °C (+/- 2 °C)) of the device and test object. Therefore, also make sure not to hold the coins and bars in your hand for too long before measurement.

Precautions regarding the lithium battery:
CAUTION! Read the precautions regarding lithium batteries carefully. Neglecting to follow the instructions may result in fire, burns, and other hazards or injuries.

• Only use the charger supplied by Goldanalytix to charge the device.
• If possible, charge the device on non-combustible surfaces and do not leave the device unattended while charging.
•  Protect the device from heat (e.g. from continuous sunlight, proximity to hot stoves or microwaves), as well as from water and moisture. There is a risk of explosion if the battery overheats.
• Follow the applicable transport instructions for lithium batteries.
• Before disposing of the device, inform yourself about the applicable guidelines and regulations and follow them. More information on the disposal of the device can be found in Chapter 8: Recycling and Disposal.

Disruptive factors:
We recommend operating mobile devices (smartphones, mobile phones or flash drives with wireless access) at least 1 m away from the testing device due to the inductive eddy current measurement principle of the GoldScreenPen. The relatively high radiation density of the devices can lead to incorrect measurements, which are noticeable in the form of strong deviations or fluctuations in the measurement result. After restarting, the GoldScreenPen can be used without any restrictions. WLAN or Bluetooth wireless connections do not affect the measurements and can be operated without hesitation.
Conformity:
The GoldScreenPen from Goldanalytix complies with the relevant European Directives regarding health, safety and environmental protection.

Scope of Supply

Your GoldScreenPen set includes the following components:
GoldScreenPen Charger Instruction manual Carrying case with inlay Shipping cartonBefore initial start- up, please check that the components mentioned above are included in the scope of delivery of the GoldScreenPen set and that there is no obvious transport damage. In case of any defects, please contact Goldanalytix immediately (for contact details, see page 24).

Operation and Display Elements

conductivity. No direct information on the authenticity
of the test object.
⑤| Display „Ready“: You can start with your measurement.
⑥| Indication of low battery charge level: This warning is
only shown when the device is switched on!
⑦| Indication of ferromagnetic metal: Ferromagnetic
objects cannot be measured!
⑧| Indication of a metal contact of the probe tip during
startup.

Starting and Operating the Device

Starting the device:
In order to switch on the device, please press the power button ②. After a short delay, caused by an autocalibration, the display shows that your GoldScreenPen is ready for measurement ⑤.
Please make sure that are no metallic objects near the probe tip while starting the device. The display mode ⑧ will inform you of this.
Performing measurements:
To determine the conductivity of your test object, hold the tip of the pen perpendicular to the surface of the test object (see Figure 2). Please do not place the sensor tip too forcefully on the surface or on sharp-edged mintages, as this may damage or destroy the sensitive coil in the tip. A gentle pressure, like when writing with a pen, is totally sufficient. The device performs two measurements per second. Thus, the resulting conductivity value is continuously output on the display with an accuracy of one decimal place ③. Due to the measuring intervals and the user-related change in the position of the probe tip during the measurement, it is possible that the output conductivity value does not remain constant.
After removing the sensor tip from the object, the device performs an intermediate calibration after about two seconds. We therefore recommend that you wait a few seconds between two measurements to allow the device to autocalibrate.
IMPORTANT : The probe tip is sensitive! A light touch is completely sufficient during testing.
Pressed-in probe tips are not covered by the warranty, and such repairs must be borne by the customer.

Conditions for optimal measurement results:

• The device can also determine the conductivity through thin blisters and foils (max. 0.25 mm thickness). However, the measuring accuracy will decrease. The best results are obtained when the probe tip is placed directly on the test object.
• The contact surface on the test object should cover at least the sensor tip (approx. 3.5 mm) to ensure accurate measurement.
• The contact surface should be as plane as possible (we recommend a spot without embossing) and not strongly curved.
• Place the probe tip perpendicular to the test object and not diagonally.
• The thickness of the test object must be greater than the penetration depth (min. 0.5 mm).

IMPORTANT INFORMATION:

Please always compare the measured values to the conductivity value tables in the annex of this instruction manual or with other sources (see also Chapter 6: Evaluation and Interpretation of the Results).
A 50 Euro cent coin, for instance, has a similar conductivity as the Krugerrand Gold (alloy 916(A), see on page 26), platinum or palladium. When measuring the 50 cent coin, the GoldScreenPen can therefore output the conductivity of Gold 916 as the measurement result, even if it is not the alloy in question. If one compares dimensions and weight, it quickly becomes clear that no Krugerrand.
The test objects must be at least 0.5 mm thick; blisters can be up to 0.25 mm thick. It is important to always wait 3 to 5 seconds between each measurement so that the device can calibrate itself. If you place the sensor tip too quickly one after the other, there may be deviations in the measured values. If you notice that suddenly only “wrong” values are displayed, e.g. significantly lower values than just measured, you should restart the device.
Please also note the further important information on measuring with GoldScreenPen on our website at www.gold- analytix.com/goldscreenpen!
These instructions are particularly relevant when measuring the following coins and bars:

• Old coins and bars, as well as medals
• Silver coins (especially fine silver coins and coins with a fineness of less than 985)
• Krugerrand Silver 1 ounce
• 5 DM commemorative coin

Evaluation and Interpretation of the Results

In the following, you will find information on how to interpret the determined conductivity values. Since the GoldScreenPen only measures the electrical conductivity, we recommend using a conductivity value reference table (see annex). However, the following factors can also falsify the electrical conductivity:

• Scratches
• Blisters & capsules / other packaging
• Temperature effects (different temperatures of device and test object)
• Embossing on coins or bars
• Bends / deformations
• Uncommon coins or impurities with ferromagnetic material

IMPORTANT : A correct conductivity value alone is of course no guarantee that your object is not a fake. After all, an alloy that has, for example the same electrical conductivity as gold, can definitely be produced (e.g. copper alloys). However, in such a case the dimensions or weight of the coins o bars is usually not correct. After all, it is relatively easy to imitate one physical property (conductivity, density, sound, etc.) of a precious metal. To imitate two or more physical properties at the same time, however, is more difficult or almost impossible. Therefore, for the same conductivity, another physical property such as the density does not match. We therefore strongly recommend the use of several testing methods in order to exclude counterfeits with certainty. This is because no single non-destructive method for testing precious metals can on its own detect any kind of counterfeit.
For coins, the following procedure is recommended:
Step 1: Determine the weight with the help of a precision balance – does the determined weight correspond to the target weight? In many cases, fakes can already be detected in this step. Step 2: Compare the dimensions (thickness & diameter) with the nominal values of the respective coins with the help of a digital caliper (can be purchased for a reasonable price in our online shop or at specialist shops) or stencils.
If 1 and 2 correspond exactly to the nominal values (can be found on the internet, e.g. on the websites of the manufacturers), it can only be a counterfeit with materials of the same density – these are for example metals like tungsten or uranium for fine gold or for silver, for example, lead-tin alloys or molybdenum.
Step 3: Detection of sub-alloys and counterfeits made of e.g. molybdenum, tantalum or tungsten, tungsten alloys, tungsten carbide, brass, copper, etc. up to a penetration depth of about 150 µm (for fine silver) over 250 µm (fine gold) up to 500 µm (Gold 916, e.g. Krugerrand) with the GoldScreenPen.
The penetration depth of the GoldScreenPen determines the size up to which precious metal objects can be measured. In principle, you can also measure 1 kg silver ingots with the device – there will be a conductivity value. However, with such large objects, there is a risk that the forgers apply thicker layers of precious metal around the fake metal core. Therefore, one should always combine several suitable testing methods, especially for objects over 1 ounce. For bars from approx. 50 g, we recommend the additional use of the ultrasonic method (Goldanalytix BarScreenSensor). For objects up to 1 ounce, however, the penetration depth is sufficiently high to detect counterfeits.
Please also have a look at our website www.gold- analytix.com/knowledge for more information about the correct procedure for the non-destructive testing of precious metals. However, absolute certainty, especially regarding the exact composition of the test objects, can only be provided by a destructive, chemical analysis.
Irregular and immobile objects: Another major advantage of the GoldScreenPen is the ability to measure irregularly shaped or individual metal objects. A typical example is the differentiation of high-quality and merely silver- plated cutlery: High-quality silverware (hallmarks 800-999, i.e. 8099.9% silver content) can be clearly distinguished from hotel silverware of class A (hallmarks 90/100/110; base material: nickel silver, brass, or other copper alloys) and B (e.g. hallmarks 60 or 80; a wide variety of base materials), since in these cases the conductivity ranges are approx. 525 MS/m, depending on the base material. The GoldScreenPen as a mobile device enables punctual testing of large, immobile metal objects, e.g. in scrapyards. Another field of application
is the differentiation of high-quality pewter from cheap imitations, e.g. made of zinc.

Warranty and Support

Do you need more information about our devices, support in using the GoldScreenPen or the customer service? Feel free to contact us through one of the following channels:
Homepage: www.gold-analytix.com
E-Mail: gold-analytix@marawe.eu
Phone: +49 941 29020439
Our high quality precious metal testers are designed for a long lifetime. However, if any problems should occur with a device, it is good to know that we offer a legal warranty of 2 years.
The warranty period starts with the receipt of the product. In case of a warranty claim, after repair or replacement of the device, the warranty period starts again with the receipt of the product.
IMPORTANT : The warranty applies only to devices that have been properly used as described in this instruction manual and have not been misused, repaired by unauthorized persons, or modified.
The GoldScreenPen is a good tool for verifying the authenticity of precious metals – however, in the end you are responsible for your own transactions. We assume no liability for any possible financial losses that may result from the use of the GoldScreenPen.

Recycling and Disposal

The GoldScreenPen is marked in accordance with the European Directive 2012/19/EU on Waste Electrical and Electronic Equipment (WEEE). This symbol indicates that this electrical or electronic device must not be disposed of with normal household waste at the end of its lifetime, but must be taken for separate collection by the end user.
Please follow your country’s rules for the separate collection of electrical and electronic equipment. For more information on recycling, please contact your local authority.
The GoldScreenPen is marked in accordance with the European Directive 2012/19/EC on batteries and accumulators. This symbol indicates that this device contains a builtin battery or accumulator which must not be disposed of with normal household waste at the end of its lifetime, but must be taken for separate collection by the end user. Please follow your country’s rules for the separate collection of batteries and accumulators. For more information on recycling, please contact your local authority.
The following batteries or accumulators can be found in this electrical device: Rechargeable (secondary) battery [glued-in accumulator] with the chemical system [Li-Ion-Polymer].
Instructions for safe removal: This accumulator can NOT be removed from the device by the end user, but can be replaced by Goldanalytix in the course of repair.
Thank you for your contribution to the protection of the environment!

Technical Data

A1. Conductivity overview of typical alloys for investment precious

metals

Designation| Type| Electrical conductivity [Wm]| Tolerance range conductivity| Fineness [Y00]| Density (g/cm3)
---|---|---|---|---|---
Gold 999| A| 45.| 43.5-48.4| 999/999.9| 19.
Gold 995| B| 35.| 34-36.5| 995| 19.
Gold 986| C| 26.| 25-29| 986| 19.0
Gold 916 (A)| D| 10.| 9/5/10| 916| 18.
Gold 916 (B)| E| 11.| 10.8-11.4| 916| 18.
Gold 916 (C)| F| 12.| 11.5-12.1| 916| 18.
Gold 900| G| 9.| 8.5-9.4| 900| 17.
Silver 999| H| 61.0| 59-64| 999/999.9| 10.50
Silver 958| I| 53.| 52-55.5| 958| 10.
Silver 925| 1| 51.0| 49.5-52| 925| 10.
Silver 900| K| 50.| 49.5-52| 900| 10.
Silver 835| L| 49.| 48.5-49.5| 835| 10.
Silver 625| M| 47.0| 46.4-48.5| 625| 10.

Please note the additional information on our homepage at www.gold- analytix.com.

Type A| Investment gold bars (Degussa, Umicore, Heraeus, Agosi etc.), Vienna Philharmonic, American Buffalo, Kangaroo Nugget, Maple Leaf, China Panda, Mexico Libertad, Australian Lunar, Coins Germany (100 marks collector coins etc.), UK Gold Britannia (since 2013), Spain 5000 to 80000 pesetas
---|---
Type B| Mainly in Turkey (Nzp, Nadir, Altin) and India (RSBL) known alloy; special case: Austria 1000 shillings 1997/98
Type C| Please note: This is the target value of the 986 alloy for objects thicker than 1 mm (25.5 MS/m). The 1&4 ducat Austrian coins and their restrikes (0.71-0.75 mm), which are almost exclusively found in practice, have a slightly higher conductivity (27-29 MS/m).
Type D| South Africa Krugerrand, UK Gold Britannia (1987-89), Canada 100 dollars, Turkey 100 piasters, Australia 200 dollars Gold Koala, UK Sovereign, Chile 5 pesos (1895-1980), 20 pesos (1896-1917), Peru Libra (1898-1969), Peru 50000 & 100000 soles (916 Au + 84 Cu)
Type E| American Gold Eagle from the US Mint since 1986, nominal value in US dollars (916 Au + 54 Cu + 30 Ag)
Type F| UK Britannia (1990-2012), 916 Au +42 Cu + 42 Ag
Type G| Germany Reichsmark, Austria Crown Emperor Franz Joseph until 1915 & restrikes, Greece Drachma, Austria
Babenberger, Austria Florin, Swiss Vreneli (10-100 FR, 1897-1949), Netherlands Wilhemina, France
Marianne/Napoleon/Republic, Italy Umberto I, Vittorio Emanuele II, Denmark Frederik VIII, Belgium
II, Russia Ruble Alexander III/Nikolaus II, Russia Tscherwonetz, Gold Liberty Head US / Double Eagle, Chile Peso (exceptions see type D), Mexico Centenario, Peru 5 to 10 soles (1956-1979), Spain 10 to 100 pesetas
Type H| Canada Maple Leaf, Austria Philharmonic, American Silver Eagle, Australian Koala / Kookaburra, UK Britannia Silver (from 2013), Armenia Noah’s Ark, China Panda, Lunar, Mexico Libertad (from 1996)
Type I| UK Britannia Silver (1997-2003)
Type J+K| Austria Maria Theresia Taler, many medals, 10 € commemorative coins 2002-2010 and 20 € 2016-today, the values are only valid for 900 and 925 silver or copper-alloys & coins after 1945, older coins sometimes consist of silver-nickel alloys – these are 35-38 MS/m!
Type L| Latin Monetary Union, francs, lira, etc.
Type M| DM & € commemorative coins FRG e.g. 5 DM 1953-1979, 10 DM 1987-1997 & 10 € 2011-2015

A2. Conductivity overview of more precious / foreign metal (alloys)

__

Precious metals

| Electrical conductivity [MS/m]| Density [g/cm³]
---|---|---
Platinum 999| 9.1| 21.45
Palladium 999| 9.3| 11.99
Osmium| 10.9| 22.59
Ruthenium| about 14.1| 12.37
Rhodium (sintered)| 18.5| 12.38
Iridium| about 19.7| 22.56
Foreign metals and alloys| Electrical conductivity [MS/m]| Density [g/cm³]
Copper (pure)| 58.0| 8.96
Copper alloys| 41-57| Depends on the alloy
Aluminium (pure)| 36.5| 2.7
Brass| 13-33| about 8.5
Magnesium| 23| 1.74
Molybdenum| 19| 10.2
Aluminium alloys| 15.9-30.5| Depends on alloy
Tungsten (pure)| about 18.8| 19.3
Tungsten alloys| 20-28| Depends on alloy
Zinc| 17| 7.14
Tin| 7.9| 7.3
Chromium| 7.8| 7.19
Tantalum| 7.6| 16.6
Lead| 4.8| 11.34
Nickel silver| 3.2-5.7| about 8.1 – 8.7
Antimony| 2.4| 6.68
Tungsten (sintered)| < 2| about 19.3
Titanium| 0.5-2.5| 4.45
Bismuth| 0.9| 9.8
Iron| Ferromagnetic| 7.87
Nickel| Ferromagnetic| 8.9
Cobalt| Ferromagnetic| 8.9

Goldanalytix ist eine eingetragene Marke der/ a registered trademark of
MARAWE GmbH & Co. KG
Tel.: +49 941 29020439
Fax.: +49 941 29020593
E-Mail: gold-analytix@marawe.de / gold- analytix@marawe.eu
www.gold-analytix.de / www.gold- analytix.com

References

• Das neue Batteriegesetz (BattG)
• Startseite - Das neue Elektrogesetz (ElektroG, WEEE) 2024
• Gold tester, gold testing machine and precious metal tester | Goldanalytix.com - Gold Analyzer
• Gold tester, gold testing machine and precious metal tester | Goldanalytix.com - Gold Analyzer
• GoldScreenPen | Goldanalytix.com - Gold Analyzer
• Knowledge of gold and silver counterfeiting | Goldanalytix.com - Gold Analyzer
• Goldanalytix - Goldprüfgeräte & Gold Tester - Echtes Gold erkennen & Silber testen | Goldanalytix.de-Online-Shop
• Entsorgung von Altgeräten Goldanalytix | Goldanalytix.de-Online-Shop
• GoldScreenPen | Goldanalytix.de-Online-Shop
• GoldScreenSensor | Goldanalytix.de-Online-Shop
• Wissen zu Gold- und Silberfälschungen | Goldanalytix.de-Online-Shop
• Goldanalytix Shop - Pruebas de metales preciosos
• Conocimiento sobre las falsificaciones de oro y plata | Goldanalytix Shop - Pruebas de metales preciosos
• GoldScreenPen | Goldanalytix Shop - Pruebas de metales preciosos
• Goldanalytix Shop - Testeurs de métaux précieux
• Connaissances sur les contrefaçons d'or et d'argent | Goldanalytix Shop - Testeurs de métaux précieux
• GoldScreenPen | Goldanalytix Shop - Testeurs de métaux précieux
• GoldScreenSensor French Edition | Goldanalytix Shop - Testeurs de métaux précieux

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