Gossen Metrawatt Metraline DMM16 multimeter Operating Instructions
Below you will find brief information for multimeter Metraline DMM16. This multimeter has automatic range selection and a hold function for easy measurement. It also has a continuity test with an acoustic signal and a diode test for troubleshooting circuits. Use this multimeter to measure voltage, current, resistance, capacitance, frequency and temperature.
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Operating Instructions
METRALINE
DMM16
International TRMS Multimeter
3-349-722-03
3/6.17
1 2 3 4 5 6 7
1
2
3
4
5
21
20
19
18
17 16 15 14 13
Max.
1000 V !
6
7
1 Display (LCD)
2
3
ON / OFF
HOLD
Light
Key for ON / OFF and display illumination
ON / OFF
Key for the following functions: save measured value, delete and MAX-MIN
4 MAN / AUTO
5 FUNC
Key for manual measuring range selection
Key for selecting ranges or functions
6 rotary selector switch for measuring functions
7 Connector jacks
Symbols used in the Digital Display
1 MAN: manual measuring range selection is active
2 MAX/MIN value storage
3 HOLD: display memory, “freeze” measured value
4 Digital display with decimal point and polarity display
5 Diode measurement selected
6 Display Duty Cycle Measurement
7 appears when acoustic signal is active
8 Selected type of current
9 interface active
10 Unit of measure
11 Unit of measure
C / F for temperature measurement
12 Rotation Per Minute measurement selected
13 Triangle appears: indicates overranging
14 Pointer for analog display
15
REL: relative measurement with reference to offset
16 Scale for analog display
17 Indicates that the negative analog display range has been exceeded
18 Warning regarding dangerous voltage: > 40 V AC / 60 DC
19 Display in case of defective fuse
20 Low battery display
21 Symbol for continuous duty
8
9
10
11
12
Standard Equipment
1
2
1
1
TRMS-digital multimeter
1.5 V AA size batteries
Set of measurement cables KS17-2
Short-form operating instructions
2 GMC-I Messtechnik GmbH
Table of Contents
Page
1 Safety Features and Precautions ...............................3
2 Initial Start-Up ............................................................5
3 Selecting Measuring Functions and Measuring
Ranges .......................................................................5
Automatic Measuring Range Selection ..................................... 5
Manual Measuring Range Selection ......................................... 5
Quick Measurements .............................................................. 5
Relative Measurement D REL ................................................... 6
4 LCD .............................................................................6
Digital Display ......................................................................... 6
Analog Display ........................................................................ 6
Display Illumination ................................................................. 6
5 Measured Value Memory “HOLD” ..............................6
6 Saving Minimum or Maximum Values
“MIN/MAX” Hold .........................................................6
7 Voltage Measurement ................................................7
Sub-function Hz ...................................................................... 7
8 Current Measurement ................................................8
Measuring Alternating Current with (Clip-On) Current
Transformers ........................................................................ 10
8.1.1 Transformer Output mA / A ................................................... 10
8.1.2 Transformer Output V ............................................................ 10
9 Resistance Measurement .........................................10
10 Continuity and Diode Testing ...................................11
11 Capacitance Measurement ......................................12
Duty Cycle Measurement .........................................12
12.1 Duty Cycle Measurement ....................................................... 12
12.2 RPM Measurement ............................................................... 12
13 Temperature Measurement ......................................13
14 Characteristic Values ...............................................14
15 Maintenance ............................................................17
15.1 Battery ................................................................................. 17
15.2 Fuses ................................................................................... 17
15.3 Housing ................................................................................ 17
16 Recalibration ............................................................18
Page
17 Accessories ............................................................. 18
17.1 General ................................................................................ 18
17.2 Technical Data for Measurement Cables
(included: KS17-2 safety cable set) ........................................ 18
18 Repair and Replacement Parts Service,
Calibration Center and Rental Instrument Service ... 19
19 Guarantee ................................................................ 19
20 Product Support ....................................................... 19
1 Safety Features and Precautions
You have selected an instrument which provides you with a high level of safety.
This instrument fulfills the requirements of the applicable EU guidelines and national regulations. We confirm this with the
CE marking. The relevant declaration of conformity can be obtained from GMC-I Messtechnik GmbH.
The analog-digital multimeter is manufactured and tested in accordance with safety regulations IEC 61010–1:2010/
DIN EN 61010–1:2011/VDE 0411–1:2011. When used for its intended purpose, safety of the operator, as well as that of the instrument, is assured. Their safety is however not guaranteed, if the instrument is used improperly or handled carelessly.
In order to maintain flawless technical safety conditions, and to assure safe use, it is imperative that you read the operating instructions thoroughly and carefully before placing your instrument into service, and that you follow all instructions contained therein.
In the interest of your own safety and in order to protect the instrument, the multimeter is equipped with an automatic socket blocking mechanism. This mechanism is linked to the function selector switch and only allows access to those jacks which are actually required for the selected function. It also prevents the user from turning the selector switch to impermissible functions after the measurement cables have already been plugged in.
Observe the following safety precautions:
• The instrument may only be operated by persons who are capable of recognizing contact hazards and taking the appropriate safety precautions. Contact hazards exist anywhere, where voltages of greater than 33 V
RMS
may occur.
• Avoid working alone when taking measurements which involve contact hazards. Be certain that a second person is present.
• Maximum allowable voltage between any of the connector jacks and earth is 1000 V, category III or 600 V CAT IV.
Nominal voltage at the system may not exceed 600 V.
For the application of measuring cables see chap. 17.2.
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4
Voltage measurement may only be performed with the selector switch set to the V= or the V~ position.
• Be prepared for the occurrence of unexpected voltages at devices under test (e.g. defective devices). For example, capacitors may be dangerously charged.
• Make certain that the measurement cables are in flawless condition, e.g. no damage to insulation, no interruptions in cables or plugs etc.
• No measurements may be made with this instrument in electrical circuits with corona discharge (high-voltage).
• Special care is required when measurements are made in
HF electrical circuits. Dangerous pulsating voltages may be present.
• Measurements under moist ambient conditions are not permitted.
• Be absolutely certain that the measuring ranges are not overloaded beyond their allowable capacities. Limit values
can be found in the “Measuring Ranges” table in chapter
• All current measuring ranges are protected with fuses.
Maximum allowable voltage for the measuring current circuit is 600 V in all “mA” and “A” ranges.
!
Warning concerning a source of danger
(attention: observe documentation)
Earth terminal
Continuous, doubled or reinforced insulation
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’.
Indicates EC conformity
CAT III / IV Maximum allowable voltage between the connector jacks and earth is 1000 V, category III or
600 V category IV.
XY123
D-K-
15080-01-01
2012-07
DAkkS Calibration Upon Request:
Consecutive number
Deutsche Akkreditierungsstelle GmbH – calibration laboratory
Registration number
Date of calibration (year - month)
Warning!
The standard instrument may not be operated in explosive atmosphere, or connected to intrinsically safe electrical circuits.
There is a special type World IS which is certified for this application.
Measuring Categories and their Meaning per IEC 61010-1
CAT
I
II
III
IV
Definition
Measurements in electrical circuits not directly connected to the mains system: e. g. power systems in motor vehicles or aeroplanes, batteries ...
Measurements in electrical circuits directly connected to the low-voltage system: via plug, e.g. in households, offices, laboratories ...
Measurements in facility installations: stationary consumers, distributor connections, devices attached to a distributor
Measurements at the source of low-voltage installations:
Meters, main terminal, primary overcurrent protection devices
The measurement category and the relevant maximum rated voltage (e. g. 1000 V CAT III) which are shown on the instrument casing apply to your measuring instrument.
Meanings of symbols on the instrument:
Repair, Parts Replacement and Balancing
When the instrument is opened, voltage conducting parts may be exposed. The instrument must be disconnected from the measuring circuit before the performance of repairs, the replacement of parts or balancing. If balancing, maintenance or repair of a live open instrument is required, this may only be carried out by trained personnel who are familiar with the dangers involved.
Defects and Extraordinary Strains
If it may be assumed that the instrument can no longer be operated safely, it must be removed from service and secured against unintentional use.
Safe operation can no longer be relied upon:
• If the device demonstrates visible damage
• If the instrument no longer functions
• After lengthy periods of storage under unfavorable conditions (e.g. humidity, dust, temperature), see
GMC-I Messtechnik GmbH
2 Initial Start-Up
Battery
Your instrument is supplied with two 1,5 V AA size batteries in accordance with IEC LR 6, and is ready for operation. Be sure
to refer to chapter 15.1 “Battery”, before initial start-up, or after
your device has been in storage for a lengthy period of time.
Switching the Instrument On
➭ Press the ON / OFF key.
Power-up is acknowledged with an acoustic signal. All of the segments at the liquid crystal display (LCD) are illuminated shortly. The LCD is shown in the diagram on page 2.
Note!
Electrical discharge and high frequency interference may cause incorrect displays to appear, and may disable the measuring sequence. In such cases, switch the instrument off and back on again in order to reset. If the problem persists, briefly dislodge the battery from the connector contacts.
Disconnect the instrument from the measuring circuit before
opening and refer to chapter 15 “Maintenance”!
Automatic Shutdown
The instrument switches itself off automatically if neither one of the keys nor the rotary selector switch are activated for a period of approximately 15 minutes.
Disabling Automatic Shutdown
The instrument can be set to continuous duty. Press the
FUNC key and the ON / OFF key simultaneously when switching the instrument on to this end. Continuous duty is indicated at the LCD by means of the symbol.
Switching the Instrument Off
Press the ON / OFF key.
3 Selecting Measuring Functions and Measuring Ranges
The function selector switch is linked to the automatic socket blocking mechanism, which only allows access to two connector jacks for each function. Be certain to remove the appropriate plug from its respective jack before switching to and from the “mA” or the “A” function. The socket blocking mechanism prevents the user from inadvertently turning the selector switch to impermissible functions after the measurement cables have been plugged in to the instrument.
3.1
Automatic Measuring Range Selection
The multimeter is equipped with automatic measuring range selection for all ranges except the 600 mV range. Autoranging is active as soon as the instrument is switched on.
The instrument automatically selects the measuring range which allows for highest possible resolution of the applied quantity.
The instrument is automatically switched to:
– The next highest range
– The next lowest range at typically at typically
(6039 digits + 1 digit)
(560 digits – 1 digit)
3.2
Manual Measuring Range Selection
Auto-ranging can be deactivated and measuring ranges can be selected manually in accordance with the following table.
Manual operation is deactivated by pressing and holding the
MAN / AUTO key (approx. 1 s), by activating the rotary selector switch, or by switching the instrument off and then back on again.
If the instrument is switched back to auto-ranging in the
600 mV range, the respective range or 6 V is selected automatically.
AUTO/
MAN
(4)
Function
Acknowledgement
Display
Acoustic
Signal brief
MAN
(10)
1 x brief long
Manual mode active: utilized measuring range is fixed
Range switching sequence for:
V : 600 mV
6 V 60 V 600 V 1000 V
600 mV
...
V : 6 V
60 V 600 V 600 mV 6 V
1000 V...
mA : 60 mA
600 mA ...
mA : 60 mA
600 mA ...
A : 6 A
10 A 6 A
...
A : 6 A
10A 6 A ...
:
60 M
600 6 k 60 k
600 k
6 M 60 M ...
Return to automatic range selection
MAN
(10)
—
1 x
2 x
3.3
Quick Measurements
Measurements performed using a suitable fixed measuring range are executed more quickly than those which utilize automatic range selection. Quick measurement is made possible with the following two functions:
• Manual measuring range selection, i.e. selection of the
measuring range with best resolution (see chapter 3.2)
or
•
With the HOLD function (see chapter 5). In this way, the
correct measuring range is selected automatically after the first measurement and all further measurements are executed more quickly.
The selected measuring range remains active for the subsequent series of measurements with these two functions.
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3.4
Relative Measurement
REL
A reference value for relative measurements can be stored to memory with the keys MAN / AUTO and HOLD.
The applicable reference or correction value is substracted individually for the respective measuring function as an offset from all subsequent measurements, and remains in memory until deleted, or until the multimeter is switched off.
Reference value setting is only possible for the respective manually selected measuring range.
Setting the Reference Value
➭ Plug the measuring cable into the instrument and measure a reference value.
➭ Press the MAN / AUTO key and the HOLD key simultaneously.
The instrument acknowledges storage of the reference value with an acoustic signal, and the
REL symbol appears at the LCD. The value measured at the moment the keys are pressed serves as a reference value.
➭ The reference value can be cleared by once again pressing the MAN / AUTO and HOLD keys.
Note!
Relative measurement effects the digital display only.
Relative measurement is not active during overflow.
In the case of relative measurement, quantities may also appear as negative values.
4.3
Display Illumination
After the instrument has been switched on, background illumination can be activated by briefly pressing the
ON / OFF
LIGHT key. Illumination is switched back off by once again pressing the same key, or automatically after approximately 1 minute.
5 Measured Value Memory “HOLD”
By pressing the HOLD key, the currently displayed measurement value can be “frozen” in the display, and “Hold” is simultaneously indicated. Automatic shutdown is deactivated during this process.
The Hold display is deactivated if:
• the HOLD key is pressed and held
• the rotary selector switch is activated
• the FUNC multifunction key is pressed for a change of function, e.g. AC Hz.
6 Saving Minimum or Maximum Values
“MIN/MAX” Hold
Minimum and maximum measured values applied to the measuring instrument’s input after the MAX/MIN function has been activated, can be “frozen” at the display with the MAX/
MIN function. The most important use of this function is the determination of minimum or maximum values during longterm measured quantity observation.
4 LCD
4.1
Digital Display
The measured value with decimal and plus or minus sign appears at the digital display. The selected unit of measure and the current type are displayed as well. A minus sign appears to the left of the value during the measurement of zero-frequency quantities, if the plus pole of the measured quantity is applied to the “
” input. “OL” is displayed if the upper range limit of 6039 is exceeded (or 1999 in the range).
The digital display is refreshed twice per second during V, A and
measurements.
4.2
Analog Display
The analog display with simulated pointer and the same dynamic performance as a moving-coil mechanism is refreshed 20 times per second during V, A and
measurements. This display is especially advantageous for observing measured value fluctuation, and for balancing procedures.
The analog display has its own polarity indicator. If the measured value exceeds the display range, polarity at the analog display is switched after approximately 0.7 seconds.
Overranging is indicated by the triangle at the right (> 6039 digits).
➭ Select the measurement function with the rotary selector switch and, if appropriate, with the FUNC multifunction key.
➭ Connect the device under test as described in the following measurement instructions.
➭ Press the HOLD key twice.
MAX is displayed. The measuring instrument continually updates and digitally displays the largest occurring measured value.
➭ Press the HOLD key.
MIN is displayed. The measuring instrument continually updates and digitally displays the lowest occurring measured value. Pressing HOLD once more switches this function back to MAX.
➭ Press and hold the HOLD key for approx. 2 seconds, to quit the HOLD function.
HOLD x 2
HOLD long
MAX
MAN / AUTO *
HOLD
MIN
* range selection is not provided for with MAN + MIN / MAX
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7 Voltage Measurement
➭ Depending upon the voltage to be measured, set the rotary selector switch to V or V .
➭ Connect the measurement cables as shown. The “” connector jack should be grounded.
Note!
The 600 mV measuring range can only be selected manually with the MAN / AUTO key.
If the measured value exceeds 60 V DC or 40 V AC the symbol appears at the display.
An intermittent acoustic signal warns the operator if the measured value exceeds the upper range limit value of 1000 V in the 1000 V range.
V~
MAN
AUTO brief
20.00
V
~
AC
TRMS
600 mV*
6 V
6 V
60 V
60 V
600 V
600 V
1000 V
1000 V
600 mV*
* manual only
!
V=
Attention!
Make sure than none of the current measuring ranges
(neither “mA” nor “A”) are activated when connecting the multimeter for the performance of voltage measurements! If fuse trip limits are exceeded as a result of operator error, both the operator and the instrument are in danger!
MAN
AUTO brief
20.00
V
DC
600 mV
6 V
6 V
60 V
60 V
600 V
600 V
1000 V
1000 V
600 mV
Measuring Ranges:
V=: 600 mV
1000 V
Measuring Ranges:
V~: 600 mV
1000 V
(30 Hz
2 kHz)
~
!
Max. 1000 V (2 kHz)
> 40 V
:
> 1000 V: acoustic signal
Zero Balancing
REL in the V AC und V DC Measuring Range
You can select the reference point in the V AC and V DC measuring range:
➭ Plug the measuring cables into the instrument and connect the free ends to each other.
➭ After selecting the measuring range, briefly press the two
HOLD and MAN / AUTO keys.
The instrument acknowledges zero balancing with an acoustic signal and „0“ (
1 digit) and REL appears at the
LCD, depending on the measuring range. The voltage displayed at the moment the key is pressed is automatically substracted from all subsequent measured values.
Zero balancing can be deleted:
– by briefly pressing the MAN / AUTO key, which is acknowledged with an acoustic signal,
– by switching the instrument off.
– (+)
!
+ (–)
> 60 V
:
max. 1000 V
> 1000 V: acoustic signal
7.1
Sub-function Hz
➭ Turn the rotary selector switch to V
➭ Briefly press the FUNC multifunction key to display the frequency (max. 2_kHz) of the AC voltage.
➭ Press the FUNC key once again to quit the Hz function.
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8
8 Current Measurement
➭ First disconnect supply power from the measuring circuit or the consuming device, and discharge any included capacitors.
➭ Select the A range with the rotary selector switch for current greater than 600 mA, or the mA range for current less than 600 mA. Activate the highest measuring range first when measuring current of an unknown magnitude.
➭ Select the current type appropriate for the measured quantity by briefly pressing the FUNC key. Each time the key is pressed, DC and AC are alternately selected, and switching is acknowledged with an acoustic signal. The selected current type is indicated at the LCD by means of the DC and AC symbols.
DC current is always active immediately after range selection with the rotary selector switch.
➭ Securely connect the measuring instrument to the consuming device in series as shown (without transfer resistor).
A
...6 A
0.000
A
DC
AC ~
TRMS
...10 A
00.00
A
DC
AC ~
TRMS
FUNC brief
DC
AC~
AC ~
DC
1x
acoustic signal
Measuring Range:
A: 6 A
10.00 A
~
1
M
3
~
2
!
M
!
> 11 A: acoustic signal
Current
GMC-I Messtechnik GmbH
mA
... 60 mA
... 600 mA
00.00
000.0
mA mA
DC
AC ~
TRMS
DC
AC ~
TRMS
FUNC brief
DC
AC~
AC ~
DC
1x
acoustic signal
Measuring Range: mA: 60 mA
600,0 mA
1
3
2
!
> 600 mA: acoustic
signal
~ ~
Current
R x
R x
Notes Regarding Current Measurement:
• The measuring circuit must be mechanically stable and must be secured against accidental interruption. Select conductor cross-sections and connectors such that no overheating occurs.
• An intermittent acoustic signal warns the operator if the measured value exceeds the upper range limit in the
600 mA and 10 A measuring ranges.
• Measuring ranges up to 600 mA are protected against short-circuit current of up to 25 A with an FF 1.6 / 1000 V fuse link in combination with power diodes. The fuse has a breaking capacity of 10 kA at a nominal voltage of
1000 V and ohmic load.
• The 6A and 10 A current measuring ranges are protected with a 10 A / 1000 V fuse link. The fuse has a breaking capacity of 30 kA at a nominal voltage of 1000 V and ohmic load.
• If one of the fuses blows, this condition is indicated at the
LCD as soon as a measured quantity with a voltage of greater than 4 V is applied to the corresponding connector jacks.The following symbol appears at the digital display in this case: .
• If a fuse blows, eliminate the cause of overload before placing the instrument back into service!
•
Refer to chapter 15 “Maintenance”, regarding fuse
replacement.
Zero Balancing
REL during Current Measurement
You can select the reference point in the mA AC / DC and
A AC / DC measuring range:
➭ Plug the measuring cables into the instrument and connect the free ends to each other.
➭ After selecting the measuring range, briefly press the two
HOLD and MAN / AUTO keys.
The instrument acknowledges zero balancing with an acoustic signal and „0“ (
1 digit) and REL appears at the
LCD, depending on the measuring range. The voltage displayed at the moment the key is pressed is automatically substracted from all subsequent measured values.
Zero balancing can be deleted:
– by briefly pressing the MAN / AUTO key, which is acknowledged with an acoustic signal,
– by switching the instrument off.
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8.1
Measuring Alternating Current with (Clip-On) Current
Transformers
8.1.1
Transformer Output mA / A
!
Attention!
If current transformers are operated without being connected at the secondary side (e.g. as a result of defective or missing cables, a blown device fuse or incorrect connection), dangerously high voltages may occur at the connector jacks. For this reason, make sure that the measuring instrument’s current path and the transformer’s secondary coil connected to the instrument constitute an uninterrupted circuit, and connect this circuit to the
and mA or A jacks.
Maximum allowable operating voltage is equal to the current transformer’s nominal voltage. Do not forget to consider the transformer’s transformation ratio and additional display error when reading measured values.
8.1.2
Transformer Output V
Some transformers are equipped with a voltage output
(designation mV/A). The secondary terminals must thus be connected to
and V.
9 Resistance Measurement
➭ Make sure that the device under test is voltage-free.
Interference voltages distort measurement results!
➭ Set the rotary selector switch to .
➭ Connect the device under test as shown.
0.5
k
0 V !
R x
!
V~
05.00
V
Measuring Range:
: 600
40 M
–
R x
+
~
1
3
~
Current
Zero Balancing
REL in the entire resistance measuring range
Cable and contact resistances can be eliminated during resistance measurement by means of zero balancing:
➭ Plug the measuring cables into the instrument and connect the free ends to each other.
➭ Press the MAN / AUTO and HOLD keys after selecting the measuring range.
The instrument acknowledges zero balancing with an acoustic signal and „0“ (+1 digit) and
REL appears at the LCD, depending on the measuring range. The resistance value measured at the moment the key is pressed is automatically subtracted from all subsequent measured values.
Zero balancing can be deleted:
– by briefly pressing the MAN / AUTO key, which is acknowledged by an acoustic signal,
– by switching the instrument off.
R x
R x
10 GMC-I Messtechnik GmbH
10 Continuity and Diode Testing
➭ Make sure that the device under test is voltage-free.
Interference voltages distort measurement results!
➭ Set the rotary selector switch to .
➭ Connect the device under test as shown.
0.000
V
0 V !
!
FUNC brief
030.0
R < 40
Continuity acoustic signal
0.654
0L
Conducting Direction
Reverse Direction
Conducting Direction and/or Short-Circuit:
The instrument displays conducting-state voltage in volts. As long as voltage drop does not exceed the maximum display value of 1,999 V, several series connected components or reference diodes can be tested with a small reference voltage.
Reverse Direction or Interruption:
The measuring instrument indicates overflow “OL”.
Note!
Resistors and semiconductors which are connected in parallel to the diode distort measurement results!
Sub-function Continuity Test with Acoustic Signal
If the sub-function “continuity test with acoustic signal” is activated, a continuous acoustic signal is generated by the instrument within a display range of R < 40.
Acoustic Signal ON:
➭ Briefly press the FUNC key.
Activation is acknowledged with an acoustic signal.
The symbol appears at the display as well.
Acoustic Signal OFF:
➭ Briefly press the FUNC key once again.
Deactivation is acknowledged with an acoustic signal.
The symbol is cleared from the display.
The acoustic signal function is always inactive immediately after the “continuity test” function has been selected with the rotary selector switch. The acoustic signal can be activated and deactivated by repeatedly and briefly pressing the FUNC key. If the key is pressed and held, the acoustic signal is always deactivated, which is acknowledged with two acoustic signals.
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11 Capacitance Measurement
➭ Make sure that the device under test is voltage-free.
Interference voltages distort measurement results!
➭ Turn the rotary switch to the “F” position.
➭ Connect the (discharged!) device under test to the and V jacks with the measurement cables
Note!
The “–“ pole of polarized capacitors must be connected to the „
“ jack.
Resistors and semiconductor paths connected in parallel to the capacitor distort measurement results!
F
12 Frequency Measurement – Duty Cycle Measurement
➭ Turn the rotary switch to the Hz position.
➭ Apply the measured quantity as described under voltage measurement.
➭ Smallest measurable frequencies and maximum
allowable voltages are listed in chapter 14 “Characteristic
12.1 Duty Cycle Measurement
The pulse-period ratio can be ascertained for square-wave signals with the duty cycle measurement.
➭ Turn the rotary swith to Hz position
➭ Briefly press the multifunction FUNC key twice. The instrument is switched to duty cycle measurement. The duty cycle, i.e. the pulse duration of a signal as a percentage, is displayed at the LCD.
00.00
nF Pulse Duration
Duty Cycle (%) = ——————— • 100
Period
Messbereich:
F: 40 nF
400 μF
Note!
The applied frequency must remain constant during duty cycle measurement.
12.2 RPM Measurement
RPM is measured by acquiring pulses. The number of measurable pulses per revolution varies depending upon the type of engine.
➭ Set the rotary switch to Hz.
➭ Press the multifunction key FUNC twice until unit of measure RPM appears.
The measured value then appears, for example “244.3 RPM”.
12 GMC-I Messtechnik GmbH
13 Temperature Measurement
The multimeter provides for the measurement of temperatures within a range of – 50
°C to + 800°C with the help of a type K temperature sensor.
➭ Set the rotary selector switch to „°C“.
➭ Connect the sensor to the two accessible jacks.
The device indicates the measured temperature in
C at the digital display.
➭ Briefly press the FUNC key to switch between C and F.
Note!
The cold junction temperature (reference temperature) is measured with a Pt100 temperature sensor inside the instrument. It is displayed when the measuring input is short-circuited. Due to internal heating or a change from warm to cold environment or vice versa, the reference temperature may differ from the ambient temperature.
C
FUNC brief
C F
023.2
C
TC
Type_K
Measuring Range
–50
+400 C
+401 ... +800
C
TYPE K
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14 Characteristic Values
Meas.
Function
V
Resolution
Input Impedance
Measuring Range
6000
600 mV 100
V 10 M // < 40 pF
8.1 M
// 50 pF
6 V 1 mV 5.2 M
// < 40 pF
4.6 M
// 50 pF
60 V 10 mV 5 M
// < 40 pF
4.4 M
// 50 pF
600 V 100 mV 5 M
// < 40 pF
4.4 M
// 50 pF
1000 V 1 V 5 M
// < 40 pF
4.4 M
// 50 pF
Voltage drop at approx. range limit
Intrinsic Uncertainty at Max. Resolution under Reference Conditions
(... % rdg. + ... d) (... % rdg. + ... d)
5)
0.5 + 5
0.5 + 5
0.5 + 5
0.5 + 5
0.5 + 5
1 + 5
Overload Capacity
1) Meas.
Function
Value Time
1000 V
DC
AC eff
Sinus
Cont.
V
5)
A
C
Hz
V
Hz
60 mA
600 mA
6 A
10 A
600
6 k
60 k
600 k
6 M
40 M
2 V
600
TYP K
100 Hz
1000 Hz
100 Hz
1000 Hz
1000 kHz
-50,0 ...
+400
C
+ 401 ...
+800
C
10
A
100
A
1 mA
10 mA
100 m
1
10
100
1 k
10 k
1 mV
0.1
0,1
C
0,1
C
0,1 Hz
1 Hz
0,1 Hz
1 Hz
100 mV
700 mV
200 mV
300 mV
Open-circuit voltage max. 1 V max. 1 V max. 1 V max. 1 V max. 1 V max. 1 V max. 3 V max. 1 V
100 mV
700 mV
200 mV
300 mV
Meas. current at range limit max. 250
A max. 100
A max. 12
A max. 1,2
A max. 120 nA max. 50 nA max. 250
A
1.0 + 5 (> 10 D)
0.1 + 2
1.5 + 5 (> 10 D)
(... % rdg. + ... d)
1 + 5
2)
0.7 + 3
0.7 + 3
0.7 + 3
0.7 + 3
2.0 + 3
1.0 + 5
1.0 +5
(... % rdg. + ... K)
1.0 + 5 K
3)
5.0 + 7 K
3)
(... % rdg. + ... d)
0.1 + 2
1.0 A
10 A
4)
Cont.
Cont.
1000 V
DC
AC eff
Sinus max. 10 s
1000 V
DC/AC eff
Sinus max. 10 s
1000 V
6) max. 10 s
Hz
V
1000 V
6) max. 10 s
A
C
Hz
Measuring voltage
%
30 Hz ... 1KHz: 2,0 ... 98,0
1 kHz ... 4 kHz: 5,0 ... 95,0
40 kHz ... 10 kHz:10,0 ...90,0
> 2 ... 14 V
0.2% v.MUL + 8 D
0.2% v.MUL/kHz + 8 D
0.2% v.MUL + 8 D
1000 V
6) max. 10 s
%
4)
5)
6)
1)
2)
3)
Rpm 60 ... 99.99 k 1 Rpm
F
40
400
4
40
400 nF nF
μF
μF
μF
10 pF
100 pF
1 nF
10 nF
100 nF
Discharge Resistance
10 M
1 M
100 M
12 M
3 M
At 0
C ... + 40 C with zero balancing, + 35 digits without zero balancing without sensor
12 A 5 minutes, 16 A 30 seconds
1 ... 35 d from the zero point due to TRMS converter when probe tips are short-circuited
Power limit: frequency x voltage max. 3•10
6
V•Hz @ U > 100 V
2 Rpm
(... % rdg. + ... MR)
2.0 + 10 with zero active
1.0 + 6
1.0 + 6
2.5 + 6
5.0 + 6
1000 V max. 10 s
1000 D
DC
AC max. 10 s
Key rdg. = reading (measured value); d = digit
MUL = upper range limit; MR = measuring range
Rpm
F
14 GMC-I Messtechnik GmbH
Influencing Quantities and Influence Error
Influencing
Quantity
Sphere of Influence
Measured Quantity /
Measuring Range
Influence Error
1)
(... % rdg. + ... digits)
600 mV
6 ... 600 V
1.0 + 3
0.15 + 1
Temperature
Measured
Quantity
Frequency
0
C ... +21 C and
+25
C... +40 C
> 30 Hz ... 45 Hz
> 65 Hz ... 1 kHz
> 30 Hz ... 45 Hz
> 65 Hz ... 500 Hz
> 65 Hz ... 800 Hz
1000 V
V
0
2)
600
2)
6 k
... 6 M
40 M
mADC, ADC mAAC, AAC
– 50 ... + 200
C
+ 200 ... + 400
C
A
60 / 600 mA / 6 A
10 A
600 mV
6 / 60 /600 V
1000 V
600 mV
6 / 60 V
600 V
1000 V
0.5 K + 2
0.5 + 2
2.0 + 10
1.5 + 10
2 + 10
3 + 10
2.5 + 10
3.5 + 20
0.2 + 1
0.4 + 2
0.15 + 2
0.25 + 2
0.15 + 1
1.0 + 1
0.5 + 1
0.75 + 1
35 + 20
2.5 + 10
3 + 20
3.5 + 20
Influencing
Quantity
Sphere of
Influence
Measured Quantity /
Measuring Range
Influence Error
Battery
Voltage
3)
... < 2.9 V
> 3.1 V ... 3.6 V
V
V
A
A
60
/ 600 / C
6 k
... 40 M
2 Digits
4 Digits
4 Digits
6 Digits
4 Digits
3 Digits
75%
Relative
Humidity
3 days
Instrument off
V
A
C
1 x intrinsic uncertainty
HOLD
MIN / MAX
—
— V , A
1 Digits
2 Digits
1) For temperature: specified error valid starting with temperature changes as of 10 K.
For frequency: specified error valid starting with display values as of 300 digits.
2) With zero balancing
3) After the symbol appears at the display
Influencing
Quantity
Sphere of Influence
Common
Mode
Interference
Voltage
Interference quantity max. 600 V
Interference quantity max. 600 V
50 Hz, 60 Hz sine
Series Mode
Interference
Voltage
Interference quantity: V ,
respective nominal value of the measuring range, max. 600 V
, 50 Hz, 60 Hz sine
Interference quantity max. 600 V
Measuring
Range
V
6 V ,
60 V
600 V
V
V
Crestfaktor CF
Test signal: Rectangle 55 Hz, no DC component
Influencing
Quantity
Sphere of Influence
Measured Quantity /
Measuring Range
Influence Error
Crest factor CF
1.5 < CF
2
2 < CF
4
6 V, 60 V, 600 V,
1000 V
1 % rdg.
5 % rdg.
The admissible crest factor CF of the alternating quantity to be measured depends on the display value.
Crest factor 4 at the end of range, it is increased accordingly when the range is reduced. However, due to input protection, voltage is limited to 1000 V, therefore the admisible crest factor in the 600 V ranges is half as high.
When the waveform is unknown, measurement is to be performed with manual range selection in the case of higher frequency signals.
Power limiting: voltage x frequency max. 3 x 10
Response Time (after manual range selection)
Measured
Quantity/
Measuring Range
V
A
,
A ,
600
... 6 M
40 M
Response Time
Analog Display Digital Display
0.7 s
1.5 s
4 s
— *
1.5 s
2 s
5 s
1.5 s
— * < 50 ms
C
— * max. 3 s
F
* without bargraph
— * max. 5
6
Damping
> 120 dB
> 80 dB
> 70 dB
> 50 dB
> 110 dB
V x Hz.
Measured Quantity
Step Function from 0 to 80% of the upper range limit from
to 50% of the upper range limit from 0 to 50% of the upper range limit
GMC-I Messtechnik GmbH 15
Reference Conditions
Ambient temperature
Relative humidity
Measured quantity frequency
Measured quantity waveshape
Battery voltage
+ 23
C 2 K
40 % ... 60 %
45 Hz ... 65 Hz sinusoidal
3 V
0.1 V
Display
LCD panel (65 mm x 30 mm) with analog and digital display including unit of measure, type of current and various special functions
Analog:
Display
Scale length
Scaling
LCD scale with pointer
55 mm in all ranges
0 ...
60 with 61 scale divisions in all ranges
Polarity display
Overflow display
Measuring rate
Digital:
With automatic switching
Triangle
30 measurements per second
Display / char. height
Number of places
Overflow display
Polarity display
Measuring rate
7-segment characters / 15 mm
3
6
/
7
-place 6000 steps
“OL” appears
“–” sign is displayed if plus pole is connected to “
”
3 measurements per second
Power Supply
Battery
Service life
Battery test
2 x 1.5 V AA size batteries alkaline manganese per IEC LR6 or equivalent rechargeable NiCd battery
With alkaline manganese: approx. 750 hours for V , A approx. 200 hours for V
, A
is displayed automatically if battery voltage drops to below approx. 2.1 V.
Electrical Safety
Safety class
Overvoltage category
Nominal voltage
Fouling factor
Test voltage
II per IEC 61010-1:2010/
DIN EN 61010-1:2011/
VDE 0411-1:2011
1000 V CAT III, 600 V CAT IV
1000 V
2
6.7 kV~ per IEC 61010-1:2010/
DIN EN 61010-1:2011
Electromagnetic Compatibility (EMC)
Interference emission
Interference immunity
EN 61326-1: 2013 class B
EN 61326-1: 2013
EN 61326-2-1: 2013
Fuses
Fuse links for all ranges up to 600 mA FF(UR) 1.6 A/1000 V; 6.3 mm
x32 mm, switching capacity: 10 kA at
1000 V~ with ohmic load, protects all current measuring ranges up to
600 mA in combination with power diodes
Fuse links for all ranges up to 10 A FF(UR) 10 A/1000 V; 10 mm
x 38 mm, switching capacity: 30 kA at
1000 V with ohmic load, protects
6 A and 10 A ranges to 600 V
manufacturers and types.
Ambient Conditions
Accuracy range 0
C ... + 40 C
Operating temperature –10
C ... + 50 C
Storage temperature – 25
C ... + 70 C without batteries
Relative humidity
Elevation
Deployment
45 ... 75%, no condensation allowed to 2000 m indoors only, except within specified ambient conditions
Mechanical Design
Protection IP 40 per DIN VDE 0470 part 1 /
EN 60529
Extract from table on the meaning of IP codes
IP XY
(1 st
digit X)
Protection against foreign object entry
IP XY
(2 nd
digit Y)
Protection against the penetration of water
2
3
4
0
1 not protected
50.0 mm dia.
12.5 mm dia.
2.5 mm dia.
1.0 mm dia.
3
4
0
1
2 not protected vertically falling drops vertically falling drops with enclosure tilted 15
spraying water splashing water
Dimensions
Weight
84 mm x 195 mm x 35 mm approx. 350 gr. with battery
16 GMC-I Messtechnik GmbH
15 Maintenance
!
Attention!
Disconnect the instrument from the measuring circuit before opening to replace batteries or fuses!
15.1 Battery
Make sure that no battery leakage has occurred before initial start-up, and after long periods of storage. Continue to inspect the batteries for leakage at short, regular intervals.
If battery leakage has occurred, carefully and completely clean the electrolyte from the instrument with a damp cloth, and replace the batteries before using the instrument.
Note!
Prior to lengthy periods of rest (e. g. holiday), we recommend removing the (rechargeable) batteries.
This helps to prevent excessive depletion or leakage of batteries, which, under unfavourable circumstances, may cause damage to the instrument.
If the symbol appears at the display , the batteries should be replaced as soon as possible. You can continue working with the instrument, but reduced measuring accuracy may result.
The instrument requires 2 x 1.5 V AA size batteries or two equivalent NiCd rechargeable batteries.
Replacing the Battery
➭ Set the instrument face down onto a flat working surface, loosen the two screws at the back and lift off the housing base, starting at the bottom. The housing top and housing base are held together with the help of snap hooks at the top front.
➭ Remove the batteries from the battery compartment.
➭ Insert two new 1.5 V AA size batteries into the battery compartment, making sure that the plus and minus poles match up with the provided polarity symbols.
➭ Important for reassembly: First set the housing base onto the housing top and align accurately (see photo below).
Then press the two housing halves together, first at the bottom front (a), and then at the top front (b).
(b) (a)
➭ Secure the housing base with the two screws.
➭ Please dispose of depleted batteries in accordance with environmental protection regulations!
15.2 Fuses
If one of the fuses blows, this condition is displayed at the
LCD as soon as a measured quantity with a voltage of greater than 4 V is applied to the corresponding connector jacks. The following symbol appears at the digital display in this case:
.
The 16 A fuse interrupts the 6 A and 10 A ranges, and the
1.6 A fuse interrupts all other current measuring ranges. All other measuring ranges remain functional.
If a fuse should blow, eliminate the cause of overload before placing the instrument back into service!
Replacing the Fuse
➭ Open the instrument as described under “Replacing the
Battery”.
➭ Remove the blown fuse with the help of an object such as a test probe, and replace it with a new fuse.
The following fuses are approved for use:
– For current measuring ranges up to 600 mA:
Type FF 1.6 A / 1000 V AC (10 kA),
6.3 mm x 32 mm
– For 6 A and 10 A current measuring ranges:
FF 10 A/1000 V AC (30 kA),
10 mm x 38 mm
!
Attention!
Use specified fuses only! If fuses with other blowing characteristics, other current ratings or other breaking capacities are used, the operator is placed in danger, and protective diodes, resistors and other components may be damaged.
The use of repaired fuses or short-circuiting the fuse holder is prohibited.
15.3
Housing
No special maintenance is required for the housing. Keep outside surfaces clean. Use a slightly dampened cloth for cleaning. Avoid the use of cleansers, abrasives and 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 subject to the
RoHS directive. Furthermore, we make reference to the fact that the current status in this regard can be accessed on the
Internet at www.gossenmetrawatt.com by entering the search term WEEE.
We identify our electrical and electronic devices in accordance with WEEE 2012/19/EU 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.
GMC-I Messtechnik GmbH 17
If you use batteries or rechargeable batteries in your instrument or accessories 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.
Pb Cd Hg
17 Accessories
17.1 General
The extensive accessories available for our measuring instruments are checked for compliance with currently valid safety regulations at regular intervals, and are expanded as required for new applications. Currently up-to-date accessories which are suitable for your measuring instrument are listed at the following web address along with photo, order number, description and, depending upon the scope of the respective accessory, data sheet and operating instructions: www.gossenmetrawatt.de
( Products
Measuring Technology – Portable Multimeter
Accessories ) or
( Products
Measuring Technology – Portable Digital
Multimeters
METRA HIT ...
16 Recalibration
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.
17.2 Technical Data for Measurement Cables
(included: KS17-2 safety cable set)
Electrical Safety
Maximum Rated Voltage
Measuring Category
Maximum Rated Current with safety cap applied without safety cap applied
600 V
CAT IV
1 A
—
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.
Ambient Conditions (EN 61010-031)
Temperature
Relative humidity
Pollution degree
–20
C ... + 50C max. 80%
2
We are pleased to perform DAkkS or factory calibrations for you in our calibration laboratory. Please visit our website at www.gossenmetrawatt.com (
Company DAkkS
Calibration Center or
FAQs Calibration questions and answers).
Application KS17-2
!
By having your measuring instrument calibrated regularly, you fulfill the requirements of a quality management system per
DIN EN ISO 9001.
1000 V 1000 V
CAT III CAT II
1 A
—
16 A
—
Attention!
Please observe the maximum values of the electrical safety of the device.
In conformity with standard DIN EN 61010-031, measurements in an environment according to measuring category III and IV may only be performed with the safety cap applied to the test probe of the measurement cable.
For establishing contact in 4 mm jacks you have to remove the safety cap by levering out the snap lock of the safety cap with another sharp object (e.g. the second test probe).
*
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.
18 GMC-I Messtechnik GmbH
18 Repair and Replacement Parts Service,
Calibration Center* and Rental Instrument Service
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 [email protected]
www.gmci-service.com
This address is only valid in Germany.
Please contact our representatives or subsidiaries for service in other countries.
19 Guarantee
All METRAHit measuring and calibration instruments are guaranteed for a period of 3 years after date of shipment.
Calibration is guaranteed for a period of 12 months. The guarantee covers materials and workmanship. Damages resulting from use for any other than the intended purpose or operating errors, as well as any and all consequential damages, are excluded.
20 Product Support
If required please contact:
GMC-I Messtechnik GmbH
Hotline Produktsupport
Phone +49 911 8602-0
Fax
+49 911 8602 709 [email protected]
* DAkkS Calibration Laboratory for Electrical Quantities
D-K-15080-01-01 accredited per DIN EN ISO/IEC 17025
Accredited quantities: direct voltage, direct current value, direct current resistance, alternating voltage, alternating current value, alternating current active power, alternating current apparent power,
DC power, capacitance, frequency, temperature
Competent Partner
GMC-I Messtechnik GmbH is certified in accordance with
DIN EN ISO 9001.
Our DAkkS calibration laboratory is accredited by the
Deutsche Akkreditierungsstelle GmbH (National accreditation body for the Federal Republic of Germany) in accordance with DIN EN ISO/IEC 17025 under registration number D-K-
15080-01-01.
We offer a complete range of expertise in the field of metrology: from test reports and factory calibration certificates, right on up to DAkkS calibration certificates.
Our spectrum of offerings is rounded out with free test equipment management.
An on-site DAkkS calibration station is 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 lab, we can calibrate instruments from other manufacturers as well.
GMC-I Messtechnik GmbH 19
Edited in Germany • Subject to change without notice • A pdf version is available on the Internet.
GMC-I Messtechnik GmbH
Südwestpark 15
90449 Nürnberg • Germany
Phone +49 911 8602-111
Fax +49 911 8602-777
E-Mail [email protected]
www.gossenmetrawatt.com

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Key features
- Automatic range selection
- Hold function
- Continuity test with acoustic signal
- Diode test
- Measurement of voltage, current, resistance, capacitance, frequency and temperature