Operating Instructions
METRALINE RCDCHECK
RCD Test Instrument
3-349-694-03
1/7.12
Contents
Page
1
Introduction ...................................................................... 2
1.1
1.2
1.3
1.4
1.5
1.6
Scope of Delivery ...........................................................................2
Optional accessories ......................................................................2
Safety Precautions .........................................................................2
Applications ..................................................................................3
Applicable Standards .....................................................................3
Environment ..................................................................................3
2
Device Description ........................................................... 3
2.1
2.2
2.3
Housing ........................................................................................3
Operation and OLED Display ...........................................................3
Initial Start-Up ...............................................................................4
3
Performing Measurements .............................................. 4
3.1
3.2
Switching the Instrument On and Off ...............................................4
Instructions and Principles with Validity for
All Measurements ..........................................................................4
Adjustable Parameters ...................................................................5
Measuring the Individual Parameters of an RCD ...............................6
Touch Voltage Uc ...........................................................................6
Time to Trip – TIME .......................................................................6
Tripping Current I ..........................................................................7
Further Device Functions ................................................................7
Device Reset Function ....................................................................7
3.3
3.4
3.4.1
3.4.2
3.4.3
3.5
3.6
Meanings of Symbols on the Instrument
This device is equipped with double
or reinforced insulation.
Danger of injury due to electrical current,
warning regarding dangerous electrical voltage
!
Warning concerning a source of danger
(attention, observe documentation!)
EC mark of conformity: This instrument fulfills all requirements of applicable European directives.
Before using the instrument, it must be assured that it is safe. Do
not use if:
• Visible damage is apparent
• The battery compartment lid is missing
• The device has been stored under unfavorable conditions for
a lengthy period of time
• The device has been handled impermissibly, e.g. has been
dropped from a height of 1 meter or more
• The test instrument does not function as described in these
operating instructions (if this is the case, we recommend
resetting the device as described in section 3.6 on page 7)
CAUTION
4
Technical Data ................................................................. 8
4.1
4.2
Measuring Functions ......................................................................8
General Data .................................................................................8
5
Maintenance .................................................................... 9
5.1
5.1.1
5.1.2
5.1.3
5.2
5.3
Device Power Supply .....................................................................9
Inserting and Replacing the Batteries ..............................................9
Recharging the Batteries ................................................................9
Fuse Replacement .........................................................................9
Cleaning .......................................................................................9
Recalibration ...............................................................................10
6
Repair and Replacement Parts Service,
Calibration Center and Rental
Instrument Service ......................................................... 10
•
•
•
•
•
•
•
•
7
Product Support ............................................................. 10
•
•
1
Introduction
1.1
Scope of Delivery
1
4
1
1
1
1
1.2
Test instrument with mobile test probe
Batteries (AAA)
Pouch
Condensed operating instructions
CD ROM with operating instructions in available languages
Factory calibration certificate
Optional accessories
4 ea. rechargeable AAA NiMH batteries (Z507B)
1 battery charger (Z507A)
1.3
Safety Precautions
Read the operating instructions thoroughly and carefully before
using your instrument. Follow all instructions contained therein.
Make sure that the operating instructions are available to all users
of the instrument.
2
•
Do not touch electrically conductive parts, test probes etc.
when the device is switched on and voltage might still be conducted by a test probe – DANGER OF INJURY!
Only use test probes which are included with the instrument
or are available as accessories.
The device must be switched off and no voltage may be
applied when exchanging accessories.
It is absolutely essential to adhere to all safety precautions,
regulations and standards when performing measurements.
No keys may be pressed when connecting the instrument to a
device under test.
The test instrument may not be subjected to the influence of
aggressive substances, gases, vapors, liquids or dust.
The test instrument may only be used under the conditions
listed in the technical data in section 4 on page 8.
If the device is moved from a colder to a warmer room, condensation may occur, in which case a brief period of acclimatization is advisable.
We recommend removing the batteries during lengths periods
of storage.
Two relatively strong magnets are integrated into the test
instrument. Avoid close proximity to magnetically sensitive
objects such as watches, credit cards and the like.
The illustrations in these operating instructions are drawings
and may therefore deviate from reality.
Exclusion of Liability
When testing systems with RCCBs, the latter may switch off. This
may occur even though the test does not normally provide for it.
Leakage currents may be present which, in combination with the
test current of the test instrument, exceed the shutdown threshold value of the RCCB. PCs which are operated in proximity to
such RCCB systems may switch off as a consequence. This may
result in inadvertent loss of data. Before conducting the test, precautions should therefore be taken to ensure that all data and
programs are adequately saved and the computer should be
switched off, if necessary. The manufacturer of the test instrument assumes no liability for any direct or indirect damage to
equipment, computers, peripheral equipment or data bases when
performing the tests.
GMC-I Messtechnik GmbH
!
•
•
•
1.4
Use original accessories only.
Maximum permissible voltage between test probe and ground
is 300 V!
Maximum permissible (externally applied) voltage between the
test probes is 600 V!
For transport purposes, the movable test probe can be attached
to the housing and retained by a magnet such that both metal tips
are simultaneously recessed and protected.
In order to charge batteries which have been inserted into the
instrument, the flexible test probe’s connector plug must be
removed and the slide must be pushed to the left, so that the
socket at the right is made accessible and the charger can be
plugged into it.
Applications
The test instrument is enclosed in a compact housing with a patented means of retaining the test probes.
The high-contrast, four-color OLED display assures excellent legibility. When performing measurements under unfavorable light
conditions, measuring point illumination can be switched on –
white LED at the front.
The RCD test instrument is capable of the following measurements:
– RCD disconnection time
– RCD breaking current
– Touch voltage
– Loop impedance without tripping the RCD
– Phase detection
1.5
Applicable Standards
Measurement
EN 61557-1
EN 61557-6
1.6
EMC
EN 55022 class B
EN 61326-1
Safety
EN 61010-1
EN61010-031
Environment
The shipping package is made of recyclable cardboard. Batteries
must be disposed of in accordance with applicable regulations.
This device may not be disposed of with the trash. Further
information regarding the WEEE mark can be accessed
on the Internet at www.gossenmetrawatt.com by entering
the search term “WEEE”.
2
Device Description
2.1
Housing
Fixed Test Probe Attached to the Device
LED
OLED Display
Plastic
Housing
Control Panel P
lug
-In
M
ob
ile
Te
st
P
ro
be
Screws for Battery Compartment Lid
Figure 2.2:
2.2
Figure 2.1:
Top View
GMC-I Messtechnik GmbH
Detail View of the Back Panel with Battery Compartment Lid
Operation and OLED Display
1 Graphic OLED display
2 START key:
– Switch on:
Press and hold until the display
lights up.
– Start measurement:
1
Press and hold until measurement
starts. Briefly pressing starts measurement if voltage is applied to the
test probes (exception for Uc: is displayed immediately after voltage is
2
applied).
– Measurement point illumina3
tion:
Press briefly to switch illumination
on and off.
4
– Switch off:
Press twice briefly to switch the
instrument off.
5
3 FUNC key for selecting the following
measuring functions: Uc, TIME,
I
6
4 IN key for selecting nominal
residual current
5 TYPE key:
– Uc function:
RCD Type Selection
– TIME function:
Selection of waveform and initial polarity of the residual current, as well as
RCD type
– I function
:
Selection of waveform and initial polarity of the residual current
6 xIN key
– Uc function:
Selection of the touch voltage limit value
– TIME function: selection of a multiplier for nom. residual current
Figure 2.3: Control Panel and OLED Display
Battery Display
Temperature Display
Measuring
Function
IN and
Multipliers
Socket for Flexible Test Probe
Socket for Charger
Battery Compartment Lid
Serial Plate
RCD Type
IN
Waveform
Ancillary
Value
Main
Reading
Figure 2.4: Example of Displayed Information
The information which appears at the display varies depending on
the selected function.
3
2.3
Initial Start-Up
Prerequisites for RCD Measurement
After inserting the batteries in accordance with section 5.1 on
page 9, the measuring instrument is ready for operation.
3
Performing Measurements
3.1
Switching the Instrument On and Off
The instrument is switched on by pressing and holding the START
key. Briefly press the START key twice in order to switch the
instrument off, during which no voltage may be applied to the test
probes! The instrument is switched to the standby mode after
several seconds (reduced brightness), if none of the keys has
been pressed and no voltage is applied to the test probes. The
instrument is switched out of the standby mode (i.e. back to full
brightness) by pressing any key or applying voltage to the test
probes. The instrument is shutdown automatically if it has
remained inactive for about 1 minute, i.e. if no keys have been
pressed and no voltage has been applied to the test probes during this time.
3.2
•
If a voltage within a range of 190 to 255 V is applied to the test
probes, the TRMS value appears at the display and measurement can be triggered by pressing the START key.
Figure 3.4:
•
Example of a Voltage Measurement
For safety reasons, the test instrument first determines
whether or not touch voltage Uc is higher than the selected
limit value each time the START key is pressed before measuring RCD parameters. If the limit value is exceeded, this is indicated at the display and the measurement is ended.
Instructions and Principles with Validity for
All Measurements
Setting Parameters
The desired functions or parameters are selected with the FUNC,
IN, TYPE and xIN keys (see section 3.3). Measurement is triggered by pressing the START key. All selected functions or parameters remain valid until they are changed.
Figure 3.5:
Touch Voltage
> 50 V
Figure 3.6:
Touch Voltage
> 25 V
Interference Voltage
If (interference) voltage of less than 190 V or greater than 255 V is
applied to the test probes, corresponding information appears at
the display. If this is the case, the START key is disabled.
Figure 3.1:
Display of (Interference) Voltage
< 190 V
Figure 3.2:
Tripping During Touch Voltage Measurement
If the display shown in figure 3.7 appears after pressing the START
key, the RCD has been tripped during touch voltage measurement. This can be caused by an incorrectly adjusted nominal current value IN, by a defective RCD or by previously existing leakage current via the RCD. This status is displayed until one of the
function selection keys is pressed, or the device is once again
connected to mains power.
Display of (Interference) Voltage
> 255 V
Blown Fuse
Figure 3.7:
If line voltage is applied to the test probes, and if the fuse is either
blown or has not been inserted, this is indicated at the display.
Example of Display for Tripping During Touch
Voltage Measurement
Low Battery Voltage
If battery voltage is too low (only the red field is lit up in the battery
symbol), measurement cannot be triggered with the START key. If
the key is nevertheless pressed, the depleted battery symbol is
displayed for about 1 second. The instrument is then returned to
its previous status. Replace the batteries with new ones or
recharge them as described in section 5.1.
Figure 3.3:
Blown Fuse Display
The fuse must be replaced as described in section 5.1.3.
Note
If a voltage within a range of 25 to 190 V is applied to the
test probes, the blown fuse symbol is also displayed at
the instrument even if the fuse is OK. For this reason,
make sure that voltage in the measured electrical circuit is
really less than 190 V before replacing the fuse.
4
Figure 3.8:
Battery Voltage
Too Low
Figure 3.9:
Battery Status
After Pressing the
START Key
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Overheating
3.3
If several measurements with high IN values are performed one
after the other, the red field indicates internal warming of the
instrument. As temperature increases, the red field is gradually
filled in and becomes wider. An inversely displayed STOP symbol
appears when the maximum permissible temperature is
exceeded. If the START key is pressed, the overheating symbol
appears for about 1 second and further measurements are disabled. The instrument is then returned to its previous status which
prevailed before the START key was pressed. Allow the test instrument to cool down, which is indicated by the shrinking temperature display.
•
Adjustable Parameters
The limit value for touch voltage Ucmax can be set to either 50 V
or 25 V. Adjust with the xIN key when the touch voltage measurement function (Uc) has been activated with the FUNC key.
The nominal value for residual current can be set to one of the
following values with the IN key: 10 mA, 30 mA, 100 mA,
300 mA or 500 mA.
The residual current multiplier can be set to a value of ½, 1, 2 or
5 for 10, 30 and 100 mA, or to ½ or 1 for 300 and 500 mA
with the xIN key, after the TIME function has been activated
with the FUNC key.
RCD type: Residual current waveform and polarity are selected
with the TYPE key.
•
•
•
Display
Symbol
RCD Type
(residual current waveform)
AC (sinusoidal)
Bild 3.10
STOP: Indication
of Overheating
Figure 3.11: Indication of Overheating After
Pressing the
START Key
Performing the Measurement
Securely contact the device under test with the test probes before
triggering the measurement by pressing the START key. Afterwards, check to see whether or not the displayed line voltage
value is stable. Do not remove the test probes from the device
under test during measurement. Measurement results might otherwise be distorted.
A (pulsed)
Display
Symbol
S
RCD Type
Initial Polarity of the Residual Current
Positive half-wave
Negative half-wave
Positive half-wave
Negative half-wave
RCD Type
AC or A
Standard
Selective
Refer to the technical data in section 4 for further details.
Influences on Measurement Results
•
Current flowing via PE has an unfavorable influence on measurement results, or makes measurement entirely impossible,
due to, for example, consuming devices or capacitance
between L and PE. Consuming devices of this sort should
therefore be removed prior to measurement.
• Measurement results can be influenced by several factors:
– Leakage current in the measured electrical circuit
– Interference voltage occurring in an earthing system
– When the earthing system is influenced by the potential
of another earthing system
– Fluctuating line voltage
If the symbol shown at the right appears together with
the measurement results, the measurement results for TEST
✓
the respective function lie within the specified limit values.
GMC-I Messtechnik GmbH
5
3.4
Measuring the Individual Parameters of an RCD
RL … fault loop impedance; RL = Uc*/ IN, where Uc* is actually
measured touch voltage, i.e. without a safety coefficient from the
table at the beginning of this section.
3.4.1 Touch Voltage Uc
The displayed touch voltage refers to nominal residual current. For
safety reasons, it is multiplied by the following coefficients:
R C D
ty p e
C o n ta c t v o lta g e is
p r o p o r tio n a l to :
1 ,0 5  I
2
3.4.2 Time to Trip – TIME
N
 I
2
1 ,0 5  2 x
➭ Remove the test instrument from the RCD under test.
N
1 ,0 5  2  I
1 ,0 5 
Note
The value for fault loop impedance appears at the display
if residual current IN is set to  30 mA.
N
 I
N
➭ Select the Uc function with the FUNC key.
➭ The nominal value for residual current can be set with the IN
key.
➭ RCD type is selected with the TYPE key.
➭ The limit value for touch voltage Uc is adjusted with the xIN
key.
The following table shows time to trip in accordance with the
EN 61008, EN 61009 and IEC 60364-4-41 standards:
½ IN * IN
2 IN
5 IN
Comment
Standard
Selective
—
300 ms
150 ms
40 ms
—
500 ms
200 ms
150 ms
—
130 ms
60 ms
50 ms
max. permissible
tripping current
min. permissible
tripping current
* An RCD may not trip at ½ IN.
➭ Select the TIME function by pressing the FUNC key.
➭ The nominal value for residual current can be set with the IN
key.
➭ RCD type is selected with the TYPE key.
➭ Select a multiplier with the help of the xIN key.
Figure 3.12: Example: Settings for Touch Voltage Measurement
➭ Connect the instrument to L and PE downstream from the
RCD as shown below. Example:
Figure 3.15: Example: Settings for Time to Trip Measurement
➭ Connect the instrument to L and PE downstream from the
RCD as shown in figure 3.13.
➭ After voltage value UL-PE settles in, briefly press the START key
to trigger the measurement.
After the measurement has been completed, the results are displayed as follows:
Figure 3.16: Results of the
Figure 3.17: Results when the
Time to Trip MeaRCD is not
Tripped
surement
Figure 3.13: Connection Example
Uc (touch voltage) … touch voltage value
➭ After voltage value UL-PE settles in, briefly press the START key
to trigger the measurement.
➭ Remove the test instrument from the RCD under test.
After the measurement has been completed, the results are displayed as follows:
Comment: Selective RCDs include a delay element which makes it
necessary to wait for a certain amount of time after each measurement until the RCD is returned to its initial state. A 30 second
pause is therefore specified for the measurement of selective
RCDs, the progress of which appears at the display in the form of
a countdown timer which runs from 30 seconds to 1 second:
Figure 3.14: Results of a Touch Voltage Measurement
6
GMC-I Messtechnik GmbH
3.5
Further Device Functions
Phase Detection
If the symbol shown at the right appears in the lower righthand corner of the display, and if a phase is contacted with
the fixed test probe, the symbol is changed:
X
L
Figure 3.18: Example: Waiting Time for Measuring Selective
RCDs
The other test probe may not be connected anywhere or make
any contact at all!
3.4.3 Tripping Current I
➭ Select the I
function by pressing the FUNC key.
➭ Set residual current with the IN key.
➭ RCD type is selected with the TYPE key.
Figure 3.22: No Phase Voltage Figure 3.23: Phase Voltage
Note
Figure 3.19: Settings for the Tripping Current Measurement
➭ Connect the instrument to L and PE downstream from the
RCD as shown in figure 3.13section "Connection Example".
➭ After voltage value UL-PE settles in, briefly press the START key
to trigger the measurement.
After the measurement has been completed, the results are displayed as follows:
As usual, the test instrument must be gripped in the hand!
Phase voltage to earth must be  190 V at 45 to 65 Hz – displayed results are otherwise not reliable.
Querying the Firmware Version
Before querying the firmware version, disconnect both test
probes from the device under test / measuring circuit, and switch
the test instrument off.
➭ Press and hold the FUNC key while switching the test instrument on by pressing and holding the START key.
The firmware version appears at the display.
➭ The display is returned to the standard menu when the FUNC
key is released.
3.6
Figure 3.20: Tripping Current
Measurement
Results
Figure 3.21: Example: RCD is
Not Tripped
Uc (touch voltage) … touch voltage value
Device Reset Function
If the test instrument does not function as described in these
instructions, we recommend a device reset. The test instrument
must be switched off and neither of the test probes may be connected to a DUT. If device functions are still incorrect after switching the instrument back on again, remove the batteries as
described in section 5.1 on page 9, wait at least 10 seconds and
then reinsert the batteries (or replace them with new ones).
If the test instrument still does not function as described, remove
the batteries and contact our service department (see section 6).
➭ Remove the test instrument from the RCD under test.
GMC-I Messtechnik GmbH
7
4
Technical Data
4.1
Measuring Functions
Tripping Current I
Range per EN 61557-6
Measuring Range Resolution
for I
Residual Current Devices (RCD) – General Specifications
0.4 to 1.1 IN
(type: AC)
Nom. residual current 10, 30, 100, 300, 500 mA
Deviation from nominal
residual current
(–0/+0.1)I; I= IN, 2x IN, 5x IN
Waveform of the nom.
residual current
Sinusoidal (AC), pulsating DC (A)
RCD type
Standard and selective S
Initial polarity of
the residual current
0° or 180°
Voltage range
190 V to 255 V / 45 to 65 Hz
0.4 to 1.5 IN
(type: A)
190 to 255 V
AC
A
AC
A
AC
A
AC
A
AC
A
10
5
3.5
10
20
20
40
50
100
30
15
10.5
30
42
60
84
150
212
100
50
35
100
141
200
282
500
—
✓
✓
✓
✓
✓
✓
✓
✓
✓
150
105
300
424
—
—
—
—
250
175
500
—
—
—
—
—
—
Touch Voltage Uc and Uci
Nominal range per EN 61557-6 – 3.0 to 49.0 V for a touch voltage limit value of 25 V
Nominal range per EN 61557-6 – 3.0 to 99.0 V for a touch voltage limit value of 50 V
Measuring
Range
0.0 to 9.9 V
10.0 to 99.9 V
Resolution
0.1 V
Intrinsic Uncertainty
Measuring
Uncertainty
-0/+10% rdg. + 2 D
-0/+10% rdg. + 3 D
-0/+10% rdg.
-0/+10%) rdg. + 1 D
Impedance of the Fault Loop RL
Nominal range per EN 61557-3 – 27  to 2000 
Measuring
Range
Resolution Intrinsic Uncertainty
Measuring Uncertainty
0 to 2000 
1
(5%rdg.+5D+0.05V/IN)
(5%rdg.+3D+0.05V/IN)
Measuring current: ½ IN
The results of the fault loop impedance measurement appear at
the display if nominal residual current is set to IN  30 mA.
Time to Trip – TIME
Standard Residual Current Circuit Breaker (range per EN 61557-6):
Intrinsic Uncertainty
Measuring
Uncertainty
0 to 300 ms
(½IN, IN)
0 to 150 ms
(2x IN)
1 ms
3 ms
4 ms
0 to 40 ms
(5x IN)
Intrinsic Uncertainty
0.1 V
Measuring
Uncertainty
0.08 IN
0.1 IN
a) In the case of alternating quantities, the TRMS voltage value is
measured.
b) The measuring uncertainties specified here are only valid if line
voltage is stable during measurement, the earthing system is
free of interference voltage, there are no influences caused by
potential from neighboring systems and no leakage current
flows through the measured electrical circuit.
c) rdg. means reading, i.e. measured value, D = digits (i.e. number of the decimal place with the least significance)
4.2
General Data
Reference Conditions
Temperature
Relative humidity
Device position
23 ± 2° C
40 to 60%
any
Ambient Conditions
Operating Conditions
Operating temperature
Relative Humidity
Device position
Storage Conditions
Temperature
Relative Humidity
Device position
0 to 40° C
max. 85%, no condensation allowed
any
-10 to 70° C
max. 90% at -10 to +40° C
max. 80% at +40 to +70° C
any
Power Supply
Batteries
4 ea. AAA (LR03), 1.5 V alkaline or
1.2 V NIMH (with at least 750 mAh)
with batteries at 800 mAh:
approx. 3,000 measurements
Electrical Safety
Measuring category
Pollution degree
Protection class
Fuse
CAT III / 300 V
2
II
SIBA ceramic fuse
6.3 mm x 32 mm, F1 A/600 V
switching capacity 50 kA at 600 V
Mechanical Design
Selective Residual Current Circuit Breaker (range per EN 61557-6):
Measuring Range Resolution
Intrinsic Uncertainty
Measuring
Uncertainty
0 ... 500 ms
(½IN, IN)
0 ... 200 ms
(2x IN)
0.1 IN
Key
Number of
measurements
Measuring Range Resolution
0.08 IN
0.1 mA
Measuring Range Resolution
IN
(mA)
500
Measuring
Uncertainty
Alternating Voltage (frequency range: 45 to 65 Hz)
Residual Current Generated by the Tester (TRMS value at 20 ms):
½ IN
IN
2 x IN
5 x IN
I
300
Intrinsic Uncertainty
1 ms
3 ms
Display
Protection
Dimensions
Weight
OLED, multicolored, graphic
IP 43
approx. 260 x 70 x 40 mm
approx. 0.36 kg with batteries
4 ms
0 ... 150 ms
(5x IN)
8
GMC-I Messtechnik GmbH
5
Maintenance
5.1
Device Power Supply
Recharging of the batteries begins as soon as the charger is connected to the mains and to the charging socket (see figure 2.1).
Charging takes approximately 5 hours and 30 minutes (integrated
safety timer) if the batteries have been fully depleted.
Safety Precautions
Caution: Dangerous Voltage!
Dangerous voltage in battery compartment!
•
Before Opening the Battery Compartment Lid
Remove the test probes from the device under test and
switch the instrument off before opening the battery compartment lid.
•
Operate Only With Inserted Battery Compartment Lid
The instrument may not be placed into service if the battery
compartment lid has not been inserted and secured with
the screws.
Either alkaline batteries or rechargeable NiCD/NiMH batteries may
be used to supply the instrument with electrical power (4 each,
size: AAA, type: LR03).
The battery charge level is continuously displayed (see section
3.2).
If too little voltage is indicated, replace the batteries.
Note
We recommend removing the batteries during lengthy
periods of non-use (e.g. vacation). This prevents excessive battery depletion or leakage, which may result in
damage to the instrument under unfavorable conditions.
•
•
Do not attempt to recharge alkaline batteries: they may leak,
explode etc. The test instrument may be severely damaged or
destroyed as a result.
After initially charging new batteries and after rechargeable
batteries have not been used for a lengthy period of time (several months), operating hours after charging may be significantly less than usual. If this is the case, repeat the charging
procedure several times.
Autonomous, intelligent charging stations execute charging/
discharging cycles of this sort automatically (see instructions
included with the charging station). This procedure increases
the capacity of the batteries, thus making longer periods of
operation possible between charging cycles.
If no improvement is achieved in this way, one or more of the
rechargeable batteries may no longer fulfill the original specifications. If this is the case, the defective rechargeable battery
should be identified, e.g. with the help of the voltage measurement, and replaced.
Battery capacity is gradually reduced as a result of long and
frequent use. When you notice that this is the case, all of the
rechargeable batteries should be replaced.
5.1.3 Fuse Replacement
!
5.1.1 Inserting and Replacing the Batteries
Loosen the two screws for the battery compartment lid at the
back of the instrument and remove the lid. Insert the batteries.
Assure correct battery polarity (refer to the embossed symbols at
the bottom of the battery compartment).
Attention!
The fuse may only be replaced with the fuse type specified in section "Technical Data":
If any fuse other than the one specified is inserted into
the instrument, this may result in damage to the instrument and/or danger for the user!
The fuse is in the battery compartment.
➭ Loosen the two screws for the battery compartment lid and
remove the lid. Remove the blown fuse from the fuse holder
and replace it with a new one. Replace the lid and retighten
the screws. Check the instrument for correct functioning!
5.2
Cleaning
Use a soft cloth and soapy water for cleaning. Do not place the
test instrument back into service until its surface is completely dry.
!
Figure 5:
Correct Battery Polarity
Attention!
Do not use cleaning agents which contain benzine or alcohol! Prevent liquids from penetrating into the test instrument’s interior.
Always replace all four batteries at once, and use high quality batteries. Replace the battery compartment lid and retighten the
screws.
5.1.2 Recharging the Batteries
!
Attention!
Use only the charger (Z507A) which is offered as an optional accessory for this instrument to charge the batteries inserted in the instrument.
Make sure that the following conditions have been fulfilled before connecting the charger to the charging socket:
– rechargeable batteries have been inserted with correct
polarity, no normal batteries
– The test instrument has been disconnected from the
measuring circuit at all poles
– The instrument must remain off during charging.
GMC-I Messtechnik GmbH
9
5.3
6
Recalibration
The measuring tasks performed with your instrument, and the
stressing it’s subjected to, influence aging of its components and
may result in deviation from the specified levels of accuracy.
In the case of strict measuring accuracy requirements, as well as
in the event of use at construction sites with frequent stress due
to transport and considerable temperature fluctuation, we recommend a relatively short calibration interval of once per year. If your
instrument is used primarily in the laboratory and indoors without
considerable climatic or mechanical stressing, a calibration interval of once every 2 to 3 years is sufficient as a rule.
During recalibration at an accredited calibration laboratory
(DIN EN ISO/IEC 17025), deviations from traceable standards
demonstrated by your measuring instrument are documented.
Ascertained deviations are used to correct display values during
later use of the instrument.
We would be happy to perform DAkkS or factory calibration for
you at our calibration laboratory. Further information is available at
our website:
www.gossenmetrawatt.com ( Company  DAkkS Calibration
Center or  FAQs  General – Calibration Questions and
Answers).
Recalibration of your instrument at regular intervals is essential for
the fulfillment of requirements according to quality management
systems per DIN EN ISO 9001.
If required please contact:
GMC-I Service GmbH
Service Center
Thomas-Mann-Str. 20
90471 Nürnberg, Germany
Phone: +49 911 817718-0
Fax:
+49 911 817718-253
E-mail service@gossenmetrawatt.com
www.gmci-service.com
This address is only valid in Germany. Please contact our representatives or subsidiaries for service in other countries.
7
Product Support
If required please contact:
* Examination of the specification, as well as adjustment, are not included in calibration. However, in the case of our own products, any required adjustment is performed and adherence to the specification is confirmed.
Edited in Germany • Subject to change without notice • PDF version available on the Internet
GMC-I Messtechnik GmbH
Südwestpark 15
90449 Nürnberg, Germany
Repair and Replacement Parts Service,
Calibration Center and Rental
Instrument Service
Phone: +49 911 8602-111
Fax:
+49 911 8602-777
E-mail: info@gossenmetrawatt.com
www.gossenmetrawatt.com
GMC-I Messtechnik GmbH
Product Support Hotline
Phone: +49-911-8602-0
Fax:
+49 911 8602-709
E-mail support@gossenmetrawatt.com
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