High-Voltage Insulation Tester With Battery or Crank Generator Operating Mode
3-348-857-37
11/4.11
Page 2
IEC/EN 61557
VDE 0413
1000 V CAT II / 2000 V CAT I
3
4567
8
9
10
11
12
2
1
Attention!
!
Connect accessory 5 m extension
cable Leadex 5000 (Z580D) only
with positive measurement cable!
1 Selector switch for test voltage, battery test and power supply inter-
ruption
2 RANGE key for measuring range selection
3 Ω indicator LED – green:measurement OK
– off: invalid measurement,
battery too weak
4 LED lit: measuring range or scale up to 1 TΩ is selected
5 LED lit: measuring range or scale up to 100 MΩ is selected
6 Adjustor screw for mechanical zero adjustment
7 Selector switch for voltage or insulation resistance
measurements
8 Analog display
9Test prod for – measurement cable
10 Test prod for + measurement cable
11 Guard cable connector jack (accessory Guard 5000A (Z580C))
12 Battery or crank generator module
and Rental Instrument Service ..................................................... 13
11Product Support ............................................................................ 13
1Safety Precautions
This instrument fulfills the requirements of the applicable European and
national EC guidelines. We confirm this with the CE marking. The relevant
declaration of conformity can be obtained from GMC-I Messtechnik
GmbH.
The METRISO 5000 A/AK insulation tester is manufactured and tested in
accordance with the following standards:
IEC 61010-1:2001, EN 61010-1:2001, VDE 0411-1:2002
IEC 61557-1, -2
EN 61557-1:2007, -2:2007
VDE 413-1:2007, -2:2008
In order to maintain flawless technical safety conditions and to assure safe
use, it is imperative that you read the operating instructions carefully and
thoroughly before placing your instrument into service, and that you follow
all points contained therein.
Repair and Parts Replacement
Voltage conducting parts may be exposed when the instrument is
opened. The instrument must be disconnected from all sources of voltage
before repair or replacement of parts. If the repair of an open, live instrument cannot be avoided, this may only be performed by trained personnel
who are familiar with the dangers involved.
Errors and Extraordinary Strains
If it may be assumed that the instrument can no longer be operated
safely, it must be removed from serviced and secured against unintentional use. Send the instrument to the Repair and Replacement Parts Service Department; see Chapter 10, page 13. Safe operation can no longer
be relied upon,
• if measurement cables are damages,
• if the instrument demonstrates visible damage,
• if the needle gauge no longer responds,
• if one of the LEDs is defective,
• if the instrument no longer functions,
• after lengthy periods of storage under unfavorable conditions.
GMC-I Messtechnik GmbH3
Page 4
Observe the following safety precautions:
Caution: High Voltage!
Attention!
!
Note
!
• The instrument may only be operated with batteries or storage batteries. Mains driven power packs are not permissible, because the use
of such is life endangering.
• Be prepared for the occurrence of unexpected voltages at devices
under test. (For example, capacitors can be dangerously charged.)
• Make certain that measurement cables are in flawless condition, e.g.
no damage to insulation, no creases, no interruptions etc.
Caution: high-voltage!
A life endangering high-voltage of up to 5 kV
is present at the test prods.
CAT I / IIMeasurement category I / II device
Continuous double, or reinforced insulation
Seal of approval from VDE testing authority
Do not touch the test prods or the device under test during volt-
age testing!
High-voltage of up to 5kV is present!
Accumulation of Moisture
An accumulation of moisture on the tester, on the measurement
cables or on the DUT must be avoided, because leakage currents
may be caused by high-voltages at exposed surfaces. Even isolated components may carry high-voltages.
Overvoltage Influence
If the reversible fuse (PTC thermistor) responds to an overvoltage
or an extraneous voltage, measurement may not be resumed
immediately. A cool-down period of approximately 2 minutes must
be observed.
Meaning of symbols on the instrument
Warning concerning a point of danger
(Attention: observe documentation)
4GMC-I Messtechnik GmbH
2Applications
The METRISO 5000 A/AK insulation tester complies with regulation
IEC 61557/EN 61557/VDE 0413 “Measuring and Monitoring Equipment
for the Testing of Electrical Safety in Systems with Nominal Voltages of up
to AC 1000 V and DC 1500 V” Part 2, insulation resistance testers.
It is suited for the measurement of insulation resistance for devices and
systems in a voltage-free condition with nominal voltages of up to 1000 V.
It is also suited for the measurement of insulation resistance of up to 1 TΩ
with open-circuit voltages of up to 5000 V.
Additionally, the tester is equipped with a 2000 V measuring range for
direct and alternating voltages. This is especially advantageous for the
testing of DUTs for the absence of voltage, and for the discharging of
capacitive DUTs.
This device and the inserted (rechargeable) batteries may
not be disposed of with the trash..
For information regarding the WEEE mark can be
accessed on the Internet at www.gossenmetrawatt.com
by entering the search term ’WEEE’.
Indicates EU conformity
Page 5
3Initial Start-Up
Attention!
!
Note
Note
For initial start-up of the METRISO5000 AK with crank generator or of
the METRISO 5000 A with accessory crank generator module see Chapter 8 and Chapter 3.4. For initial start-up of the METRISO 5000 A with
battery operation mode see Chapter 3.1 to Chapter 3.4.
3.1 Battery Installation
Before opening the battery compartment (green side panel) be
absolutely certain that the function selector switch is set to the
“V” position, and that the range selector switch is set to the “OFF/
V” position, and that the device is completely disconnected from
all external power circuits.
Ð Unscrew and remove the battery compartment.
Ð Remove the battery clip.
Ð Pull the battery holder out of the battery compartment.
Ð Insert 6 commercially available 1.5 V type IEC R20 or IEC LR20 bat-
teries or storage batteries (single cell) into the battery holder with correct poling as indicated by the symbols.
Ð Push the battery holder back into the battery compartment.
Ð Push the battery clip back over the contacts making certain that cor-
rect poling is assured.
Ð Return the battery compartment to the housing in the correct direc-
tion (labeling must be legible) and fasten with screws.
3.2 Testing the Batteries
After the batteries have been installed, or if the Ω indicator LED fails to
light up during insulation resistance measurement, the batteries should be
tested. For battery testing the range selector switch must briefly be set to
the position. Deflection of the needle gauge within the scale for the
battery test indicates the condition of the batteries or storage batteries at
an average load of 1000 V test voltage. The position of the function selector switch need not be taken into consideration. The left end of the scale
represents minimum required supply voltage, and the right end represents
maximum available supply voltage.
If the needle only moves into the minimal supply voltage range,
several measurements can still be performed for test voltages of
less than 1000 V, because the battery test is conducted with the
same load as is used for a test voltage of 1000 V.
3.3 Switching the Tester On and Off
As long as the function selector switch is set to Ω, and the range selector
switch is not in the OFF/V position, the tester remains activated. For purposes of transport and maintenance we recommend that the function
selector switch be set to the V position, and the range selector switch to
the OFF/V position, in order to prevent unintentional activation of the tester.
Be certain that the grip on the function selector switch points
exactly to “V” or “Ω”. No intermediate selector switch positions
have been defined, and inaccurate switch positioning leads to
meaningless measurement results. This is especially important
during discharging of capacitive devices under test, because voltages are not displayed in intermediate selector switch positions.
3.4 Analog Display
Logarithmic representation of the upper resistance scale allows for quick
recognition of the magnitude involved.
In order to achieve the required accuracy for testing of protective measures, the RANGE key allows for switching to the expanded lower limit
measuring range of 100 kΩ ... 100 MΩ.
The orange colored LEDs, (4) and (5), at the right end of the scale indicate
which of the two resistance measuring ranges is currently active.
The Ω indicator LED lights up green to confirm correct insulation measurement. If this LED does not light up, test voltage has not been
achieved. In this event a battery test is advisable.
The two lower scales are for voltage measurement and battery testing;
see Chapter 3.2.
GMC-I Messtechnik GmbH5
Page 6
4Direct and Alternating Voltage Measurements
Note
Note
Direct voltages and sinusoidal alternating voltages with frequencies ranging from 15 to 500 Hz can be measured with the tester. Deflection of the
needle at the instrument is always positive for direct voltage measurements, regardless of polarity at the connections. Alternating voltage is
indicated as an effective value.
Voltage measurements are used to test for the absence of voltage prior to
insulation resistance measurements, as well as for the automatic discharge of capacitive devices under test. The voltage drop can be
observed at the display.
Voltage measurement can always be performed with the function
selector switch in the “V” position, regardless of the position of the
range selector switch (even without batteries).
Ð Set the function selector switch to the “V” position.
Ð Check to see that the needle points to “0” in the V scale when the test
prods are not connected. Reset the needle as required with the adjustor screw for mechanical zero adjustment.
Ð The position of the range selector switch has no influence on voltage
measurements, although we recommend setting it to the OFF/V position.
Ð Contact the measuring points with both test prods.
Ð Read the measurement value at the V scale.
Voltages of greater than 2000 V may not be applied. Input resistance for the voltage measuring range is equal to 5 MΩ.
5Insulation Resistance Measurement
Be certain that the device under test is voltage-free before performing
measurements; see Chapter 4.
For measurements within a range of 100 GΩ (10 GΩ) ... 1 TΩ, the guard
cable should be used; see Chapter 5.3, page 8.
5.1 Measurement Procedure
Ð Set the function selector switch to the Ω position, in order to activate
test voltage.
Ð A range of either 10 kΩ ... 1 TΩ or 100 kΩ ... 100 MΩ can be pre-se-
lected with the RANGE key.
Ð Select the required nominal voltage of 100 V, 250 V, 500 V, 1000 V,
1500 V, 2000 V, 2500 V or 5000 V with the range selector switch depending upon the nominal voltage of the DUT.
When lit, the LED (4) indicates that the upper limit measuring range of
10 kΩ ... 1 TΩ has been activated.
Ð Contact the measuring point with both test prods and wait until the
needle has come to rest. Depending upon the DUT this might take
only a few, or up to 30 seconds, if, for example, large capacities (long
cables) must be charged.
Ð Read the measurement value from the upper scale.
If the Ω indicator LED (3) lights up green, the insulation measurement
is valid. If this LED does not light up, test voltage has not been
achieved. In this event a battery test is advisable; see Chapter 3.2,
page 5.
Ð In order to achieve the required accuracy for testing of protective
measures, select the high resolution range, 100 kΩ ... 100 MΩ, with
the help of the RANGE key. The LED (5) lights up.
Ð Contact the measuring point with both test prods once again.
Ð Read the measurement value from the lower scale.
6GMC-I Messtechnik GmbH
Page 7
Attention!
!
Contact Hazard
Note
Do not touch the conductive ends of the test prods when the instrument has been activated for the measurement of insulation
resistance.
This may cause current to flow over your body, which, although it
does not reach life endangering levels, causes a clearly discernible shock.
When measurements are made at capacitive devices under test,
e.g. cables, the DUT may be charged with voltages of up to approximately 5000 V, depending upon selected nominal voltage.
Contact with the device under test after measurement is, in this
event, life endangering!
Safe Discharge
For this reason the DUT must be discharged in a controlled fashion by switching to V and contacting the DUT with the test prods
until the measurement display indicates 0 V. Do not reverse the
poles of the DUT during discharging, because internal overvoltage protection would otherwise be triggered. If the capacity to be
discharged is greater than 3 μF, the poles may absolutely not be
reversed, because the device might otherwise be damaged.
Overvoltage Influence
If the reversible fuse (PTC thermistor) responds to an overvoltage
or an extraneous voltage, measurement may not be resumed
immediately. A cool-down period of approximately 2 minutes must
be observed.
5.2 Evaluation of Measurement Values
In order to assure that insulation resistance values do not fall below those
required by DIN VDE regulations, insulation tester inherent deviation and
influence errors must be taken into consideration. Required minimum display values for insulation resistance which take maximum operational
measurement deviation of the METRISO 5000 A/AK into consideration
(under nominal conditions of use) can be determined with the following
table. These are the minimum values which must be displayed, in order to
assure that actual values do not fall below the required limit values. Intermediate values can be interpolated.
The table is valid for test voltages ranging from 100 V ... 1000 V.
Scale, 100 kΩ ... 100 MΩ
Limit Value
[kΩ]
100130
200260
300400
400550
500700
Limit Value
[MΩ]
1013
Display Value
[kΩ]
Display Value
[MΩ]
11.3
22.6
34
45.5
57
GMC-I Messtechnik GmbH7
Page 8
5.3 Measurements with the Guard Cable (with Accessory Guard 5000A)
Note
+Measurement Cable
– Meas. Cable
Guard Cable
Conductor
Insulation
Material
Guard Rings
Contact Ring
The measurement of very high impedance resistances presupposes
extremely small measurement currents, and can be rendered problematic
by influences such as electromagnetic fields, moisture or surface currents.
For this reason, the measurement set-up must be implemented in an
accurate fashion.
For measurements within a range of 100 GΩ (10 GΩ) ... 1 TΩ, a guard
cable must be used in order to prevent the distortion of measurement
results caused by surface currents. The guard rings prevent current at the
surface of the insulation material from flowing from the +measurement
cable to the –measurement cable, instead of through the insulation material itself.
6Characteristic Values
Insulation Resistance
Meas.
Range
100 kΩ ...
100 MΩ
10 kΩ ...
1TΩ
Nominal
Range
of Use
100 kΩ ...
10 MΩ
100 kΩ ...
100 GΩ
Nominal/
Open-Circuit
Voltage U
100/1500 V
250/2000 V
500/2500 V
1000/5000 V
100 V
250 V
500 V
1000 V
N /U0
Nominal
Current
I
S-C
Current I
N
1mA1.3mA
0.7 mA
0.5 mA
0.4 mA
0.1 mA
1.3 mA
Intrinsic
Uncertainty
K
1)
± 2.5%±30%
± 5%
Measuring
Uncertainty
rdg.
Direct and Alternating Voltage
Measuring Range FrequencyInternal
0 ... 2000 V DC/AC 15 ... 500 Hz5 MΩ
Resistance
Max. Allowable
Voltage
2200 V DC/AC
max. 10 s
Intrinsic
Uncertainty
±5%
1)
Protective Devices
Ð Insert the guard cable plug into the appropriate jack at the tester.
Ð Plug the crocodile clip onto the guard cable test prod.
Ð Clip the crocodile clip onto the guard ring located between the two
measuring points of the insulation material to be measured.
Ð See Chapter 5.1, page 6 for measurement procedures.
The following materials can be used as guard rings:
aluminum foil, copper foil or metal tubing clamps.
TerminalInternal
–Measurement
Cable
+Measurement
Cable
Insulation
Measurement
Guard Cable
Battery—10 V
1)
with reference to scale length 97.5 mm (100 MΩ range) or 109.8 mm (1 TΩ range)
2)
PTC thermistor cool-down p eriod until start of new measurement:
at least 2 minutes must be observed!
Resistance
—
—
between guard and
meas. cables 90 kΩ
Max. Allowable
Voltage
to +meas. cable/
to guard cable:
2000 V DC/AC
max. 10 s
to –meas. cable/
to guard cable:
2000 V DC/AC
max. 10 s
to meas. cable
2000 V DC/AC
max. 10 s
Protective Device
via grounded
damping diodes
diodes in high-voltage
cascade, PTC thermistor
and series resistors
PTC thermistor
series resistors
pole protection
with diodes voltage limiting
in battery charger (optional)
2)
and
8GMC-I Messtechnik GmbH
2)
Page 9
Display
Movementcore-magnet moving-coil mechanism
Scale Length111.5 mm (longest scale)
Frequency50 Hz ±10 Hz (for voltage measurement)
Mains Voltage
Waveformsine, deviation between effective and
rectified value < 1%
Battery Voltage8 V ±1%
Operational Positionhorizontal
Power Supply
Battery or Storage
Battery6 ea. 1.5 V single cell per IEC R20 (6 · D-Size)
Working Range6 V ... 10 V
Battery Service Life7500 measurements at 1000 V test voltage
with 1 MΩ measuring shunt,
15,000 measurements at 500 V test voltage
with 500 kΩ measuring shunt,
with 5 s measurement and 25 s pause
Ambient Conditions
Operating Temp.0 °C ... + 40 °C
Storage Temp.−20 °C ... + 60 °C (without batteries)
Relative Humiditymax. 75%, no accumulation of moisture
Elevationto 2000 m
Electrical Safety
Protection ClassII
Test Voltage8.5 kV~
Measurement Category 1000 V CAT II or 2000 V CAT I
Nominal Voltage U
Open-Circuit Voltage U
Pullution Degree2
DimensionsW x D x H: 290 mm x 250 mm x 140 mm
Weight3.4 kg with batteries
ProtectionIP 52
Extract from table on the meaning of IP codes
IP XY
st
(1
Protection against
digit X)
foreign object entry
0not protected0not protected
1≥ 50.0 mm dia.1vertically falling drops
2≥ 12.5 mm dia.2
3≥ 2.5 mm dia.3spraying water
4≥ 1.0 mm dia.4splashing water
5dust protected5water jets
IP XY
(2nd digit Y)
Protection against the
penetration of water
vertically falling drops
with enclosure tilted 15°
Making Capacity for Insulation Resistance Measurement
Response Time< 100 GΩ < 3 s;
> 100 GΩ < 8 s also valid
for test voltage or measuring range changes
GMC-I Messtechnik GmbH9
Page 10
7Maintenance
Attention!
!
Attention!
!
Pb Cd Hg
Before replacing batteries completely disconnect the device from
all external power circuits.
For purposes of transport and maintenance we recommend that
the range selector switch be set to the OFF/V position, in order to
prevent unintentional activation of the tester.
7.1 Batteries
The condition of the batteries should be checked from time to time. Discharged or corroded batteries must be removed from the battery compartment. If leakage occurs at the batteries, battery electrolyte must be
completed removed and the batteries replaced. The batteries must be
replaced when:
• the needle gauge no longer climbs into the scale which contains the
battery symbol when the range selector switch is set to the battery
test position.
• the indicator LED for the selected test voltage does not light up green.
Batteries are to be replaced as described in Chapter 3.1, page 5. Always
replace batteries as a complete set!
7.2 Housing
No special maintenance is required for the housing. Keep outer surfaces
clean and dry. Use a slightly dampened cloth for cleaning. Avoid the use
of cleansers, abrasives or solvents.
Device Return and Environmentally Compatible Disposal
The instrument is a category 9 product (monitoring and control instrument)
in accordance with ElektroG (German Electrical and Electronic Device
Law). This device is not subject to the RoHS directive.
We identify our electrical and electronic devices (as of August
2005) in accordance with WEEE 2002/96/EG and ElektroG with
the symbol shown to the right per DIN EN 50419.
These devices may not be disposed of with the trash. Please contact our
service department regarding the return of old devices.
If you use batteries or rechargeable batteries in your instrument or accesso-
ries which no longer function properly, they must be duly disposed of in
compliance with the applicable national regulations.
Batteries or rechargeable batteries may contain harmful substances or
heavy metal such as lead (PB), cadmium (CD) or mercury (Hg).
They symbol shown to the right indicates that batteries or
rechargeable batteries may not be disposed of with the trash, but
must be delivered to collection points specially provided for this
purpose.
7.3 Measurement Cables
Damaged or buckled measurement cables may not be used under any
circumstances, because this may cause a reduction in insulation performance. The permanently connected test cables are double insulated.
Inspect the measurement cables on a regular basis. We recommend that
a thorough inspection be carried out every 6 to 12 months.
Even if only very slight damage is apparent at the measuring cables, we recommend that you send the tester, together with the
cables, to the GMC-I Messtechnik GmbH Repair and Replacement Parts Service Department.
7.4 Recalibration, Repair, Parts Replacement, and Device Balancing
Voltage conducting parts may be exposed when the instrument is
opened. The instrument must be disconnected from the measuring circuit
before repair, replacement of parts or balancing. If the repair of an open,
live instrument cannot be avoided, this may only be performed by trained
personnel who are familiar with the dangers involved.
10GMC-I Messtechnik GmbH
Page 11
Recalibration
Attention!
!
The respective measuring task and the stress to which your measuring
instrument is subjected affect the ageing of the components and may
result in deviations from the guaranteed accuracy.
If high measuring accuracy is required and the instrument is frequently
used in field applications, combined with transport stress and great temperature fluctuations, we recommend a relatively short calibration interval
of 1 year. If your measuring instrument is mainly used in the laboratory and
indoors without being exposed to any major climatic or mechanical stress,
a calibration interval of 2-3 years is usually sufficient.
During recalibration* in an accredited calibration laboratory
(DIN EN ISO/IEC 17025) the deviations of your instrument in relation to
traceable standards are measured and documented. The deviations
determined in the process are used for correction of the readings during
subsequent application.
We are pleased to perform DKD or factory calibrations for you in our calibration laboratory. Please visit our website at
www.gossenmetrawatt.com (→ Services → DKD Calibration Center or →
FAQs → Calibration questions and answers).
By having your measuring instrument calibrated regularly, you fulfill the
requirements of a quality management system per DIN EN ISO 9001.
*
Verification of specifications or adjustment services are not part of the calibration. For products
from our factory, however, any necessary adjustment is frequently performed and the observance of the relevant specification is confirmed.
8Z580A Crank Generator Operating Mode
8.1 Installing the Crank Generator
Ð Set the range selector switch at the METRISO
position and the function selector switch to V.
Ð Disconnect the measurement cables from the device under test!
Ð Unscrew and remove the battery module.
Ð Pull the battery clip out, and save the battery module for possible later
use.
Ð Plug the battery clip onto the crank generator module.
Ð Insert the crank module into the instrument with the crank handle on
top. Be certain that the rubber ring is not separated from the crank
generator.
Ð Secure the crank module with the 4 screws.
8.2 Operating the Crank Generator
Ð Fold the crank handle out until it snaps into place.
Turn the crank only in the direction indicated by the arrow.
The crank generator is difficult to turn in the other direction, and
the protective devices at the generator and in the instrument may
be destroyed after several rotations! Brief, inadvertent rotation in
the wrong direction causes no damage.
Fold the crank handle to its closed position before transporting the instrument.
8.3 Measuring Insulation Resistance in the Crank Generator Operating Mode
Ð Establish contact with the DUT first, preferably with the included alli-
gator clips. If this is not possible, and if contact must be established
with the test probes, you will need a second person for assistance.
Ð Select the test voltage with the range
selector switch.
Ð Set the function selector switch to Ω.
5000 AK to the OFF/V
GMC-I Messtechnik GmbH11
Page 12
Ð Turn the crank in the direction indicated by the arrow at a speed
Note
which causes the Ω signal LED at the upper right hand portion of the
display to light up and burn continuously.
If the Ω signal LED is not lit, or if it flickers, test voltage is too low, i.e. too
little power is being delivered by the crank generator.
Measurement values are only valid if the Ω signal LED is continuously lit.
For high capacitance DUTs (cables, large machines and transformers),
continue cranking until the needle gauge has stabilized. The Ω signal LED
must be continuously lit during testing. This may take as long as several
minutes, depending upon the capacitance of the DUT. Battery operation
is recommended in such cases.
8.4 Discharging the Device Under Test
The function selector must be switched from Ω back to V, in order to discharge test voltage from the DUT. Contact with the DUT must be maintained until the discharge process has been completed. The range selector switch can be left at its original setting. The crank need not be operated in order to discharge the device under test.
8.5 Measuring Voltage in the Crank Generator Operating Mode
The crank need not be operated for the measurement of voltage. Voltage
applied to the DUT is always displayed when the V/Ω function switch is
set to V.
8.6 Characteristic Values
Nominal Voltage7.5 V (at approx. 2.5 r.p.sec.)
Nominal Power4 W (at approx. 2.5 r.p.sec.)
Ambient Conditions
Same as METRISO 5000 A (M580A)
Electrical Safety (installed)
see Chapter 6 "Characteristic Values"
9Accessories (optional)
Typ eDesignationArticle Number
Generator 5000 AHand crank generatorZ580A
F2000Universal carrying bagZ700D
KY 5000 A2 crocodile clips 1000 V CAT III / 5000 V CAT I 16 AZ580B
Guard 5000 A1 guard cable and 1 crocodile clipZ580C
Leadex 50005 m extension cableZ580D
For additional information on accessories, please refer to
• the relevant datasheet or our „Measuring Instruments and Testers“
catalog
This address is for Germany only. Abroad, our representatives
or establishments are at your disposal.
* Calibration Laboratory
for Electrical Quantities DKD– K – 19701
accredited per DIN EN ISO/IEC 17025
Accredited measured quantities: direct voltage, direct current values, DC
resistance, alternating voltage, alternating current values, AC active power, AC
apparent power, DC power, capacitance and frequency and temperature
Competent Partner
GMC-I Messtechnik GmbH is certified in accordance with
DIN EN ISO 9001:2008.
Our DKD calibration laboratory is accredited by the Deutscher Kalibrierdienst (German Calibration Service) in accordance with DIN EN ISO/
IEC 17025:2005 under registration number DKD–K–19701.
We offer a complete range of expertise in the field of metrology: from test
reports and proprietary calibration certificates right on up to DKD calibration
certificates.
Our spectrum of offerings is rounded out with free test equipment management.
An on-site DKD calibration station is an integral part of our service department. If errors are discovered during calibration, our specialized personnel
are capable of completing repairs using original replacement parts.
As a full service calibration laboratory, we can calibrate instruments from
other manufacturers as well.