Sauter GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: info@sauter.eu
Instruction Manual
Model: Multi Tester JE
Thank you for buying this Multi Tester of SAUTER. We
hope you are pleased with your high quality product and
with its functional range. If you have any queries, wishes or
helpful suggestions, do not hesitate to call our service
number.
The Multi Tester utilises the feature that diamonds have a
very high thermal conductivity. So it can effectively and
quickly distinguish natural diamonds from all kinds of
diamond simulations and metals, except synthetic
moissanites (a man-made stone), which have a thermal
conductivity similar to diamonds.
The lights (and a distinctive sound which accompanies
each light) will indicate Diamond, Moissanite, Metal Alert
Metal Alert usually because the jewellery has been
touched by accident). Other stones like ruby, sapphire,
topaz give no reaction at all (including glass and cubic
zirconia). These various readings (Diamond, Moissanite,
Metal, no reaction) show that the Multi Tester works
accurately on the largest number of gemstones.
Table of contents
1. Features
2. Specifications
3. Components of the Multi Tester
4. Battery and power
5. Important notes before use
6. Cleaning procedures
7. Testing Instructions
8. The readings
9. Diamond testing (thermal conductivity)
10. Moissainte Testing (electrical conductivity)
10. Other uses of the UV light
11. Using the UV light
12. Maintenance
13. Declaration of Conformity
1. Features
- 360 degree illumination around the front of the Multi
Tester allows the user to see the test results clearly and
comfortably without having to angle the tester.
- Fitted with a 0.6mm diameter fine retractable
thermoelectric sensor, giving consistent pressure when
being placed on the surface of a gemstone, ensuring
accurate results, even on tiny stones.
- Non-slip rubber coated body allows a better handling
during the tests.
JE
Tel: +49-[0]7433- 9933-199
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
- The built-in metal alert lets you know if the jewellery
setting or the stone holder has been accidently touched. It
helps the user to reduce false readings
- There can be tested stones mounted in jewellery or loose
stones (stone-holder included)
- There are different sounds for diamond, Moissanite and
metal which facilitate to distinguish the test results without
having to look at the lights
- An integral UV light can be used during a test to give
more accurate readings when testing Moissanites (it
excites the atoms and improves electrical conductivity). It
can also be used to observe the fluorescence in diamonds
for the purpose of colour grading.
- There are no waiting times between the tests
- Designed for left and right handed users.
- Fully automatic, requires no calibration by the user
- powered by one 9V monobloc standard battery
- Alarm sounds after a few minutes if the power is
accidentally left on and it automatically powers off
-The diamond tester can be connected with an AC adapter
for a long time indoor use (not included in delivery). It has
got a 2 years manufacturer’s warranty.
2. Specifications
Working voltage: 9V battery (approximately 3 hours of
continuous use, based on high quality alkaline batteries).
Continuously used UV light source will give an
approximately 1.5 hours of use) or with AC adapter, 110V240V, DC 9V, optional available.
- Sensor’s warm-up time: about 45 seconds
- Operation temperature: 18°C to 27°C
- Recommended Humidity: 45% to 75%
JE-BA-e-1211 1
Sauter GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: info@sauter.eu
Instruction Manual
- Dimensions: 177mm x 30mm x 24mm
- Net weight: 65g (without battery), 102g (including battery)
3. Components of the Multi Tester
(L x W x D)
JE
Tel: +49-[0]7433- 9933-199
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
used immediately afterwards, it will be powered off
automatically.
When the WAIT light flashes, the battery is low and it
should be changed immediately. It should always be
changed immediately as soon as it flashes. Tests should
not be performed with a low battery.
4. Battery and Power
The Multi Tester can be powered either by a universal AC
power adaptor (optional item) or one 9V PP3 battery (not
included in delivery).
If using the universal power adaptor, only the 9V DC 0.5A
(centre negative) original one from your distributor
has to be taken, which can be purchased separately.
Using an incorrect adaptor can damage the Multi Tester
beyond repair, which will not be covered by warranty.
If using a battery, it is recommended to buy a good quality
9V alkaline battery like Duracell or UCAR, which will grant
about 2 ½ hours of continuous use or 5 hours without
using the UV-light. Ordinary “super” or “high power”
batteries may not be suitable.
On the first picture on the left, above, you see how to
remove the battery cover.
On the second one on the right, above, the new battery is
connected with the contacts of the Multi Tester.
The third picture down below on the left shows how to
insert the battery into the compartment.
The last one shows how the compartment is closed again,
by taking care not to catch the wire.
If the Multi Tester is accidently left powered on, then after
10 minutes a continuous alarm will sound and if it isn’t
If the Multi Tester is not going to be used for an extended
period of time (more than one month), the battery has to
be removed. Never leave a worn out or old battery inside
as it may corrode and cause damage to the Multi Tester.
This is not covered by warranty.
5. Important notes before use
Using the Multi Tester for the first time, or if it hasn’t been
used for a week or more, the sensor tip has to be cleaned
to ensure that the tester shows consistent and accurate
readings (see also “cleaning procedures”).
Before any test is carried out, the gemstone must be clean
and dry. This has to be done with a jewellery cloth or dry
tissue. There is no need to elaborate cleaning procedures
or to take special cleaning fluids.
This instrument has been carefully calibrated during the
manufacturing process, it doesn’t require any further
adjustment or interventions.
When testing small gemstones (10 points or below), it is
important to allow the gemstones to cool down before
further tests are carried out, to gain optimum accuracy in
tests.
If you are suspecting any doubts during the tests in your
readings, it is advisable to take any more tests, to be
assured that the gemstone has got enough time to cool
down during the tests. Gemstones become hot when
tested, which gives a false reading.
The Multi Tester will give accurate readings when it will be
used at the recommended room temperature of 18°C to
27°C (64°F to 81°F). It should be assured that the
gemstone has been adjusted to the recommended room
temperature before using the tester.
Before the Multi Tester was quality assured and sold, it
was subjected to thorough and extensive laboratory tests
until its manufacturing process was started.
It will generally give a clear and reliably reading of the
gemstone being tested. If there are any doubts in the tests,
supporting tests should be carried out.
Either the manufacturer or any of its subsidiaries,
distributers or third parties shall be liable under no
JE-BA-e-1211 2