The accessories available for your instrument 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.com
We calibrate and recalibrate all instruments supplied by GMC-I
Messtechnik GmbH, as well as other manufacturers, at our
service center, for example after one year within the framework of
your test equipment monitoring program, as well as prior to use
etc.
Repair and Replacement Parts Service
Calibration Laboratory* 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: 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.
DAkkS Calibration laboratory for measured electrical quantities,
D-K-15080-01-01, accredited in accordance with
DIN EN ISO/IEC 17025
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.
As a full service calibration laboratory, we can calibrate instruments from other manufacturers as well.
Accredited quantities: direct voltage, direct current value, direct current
resistance, alternating voltage, alternating current value, AC active
power, AC apparent power, DC power, capacitance, frequency,
temperature
4GMC-I Messtechnik GmbH
Contact Persons
GMC-I Messtechnik GmbH5
Table of Contents
ContentsPageContentsPage
1Safety Features and Precautions ....................................... 8
1.1Use for Intended Purpose ................................................................10
1.2Meanings of Danger Symbols ..........................................................10
1.3Meanings of Acoustic Warning Signals ............................................10
You have selected an instrument which provides you with a high
level of safety.
This instrument fulfills the requirements of 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 TRMS digital multimeter has been manufactured and tested
in accordance with the following safety regulations:
IEC 61010–1:2010/DIN EN 61 010–1:2011/VDE 0411–1:2011.
When used for its intended purpose (see page 10), 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.
The multimeter is equipped with an automatic socket blocking
mechanism for your safety, and in order to safeguard your
instrument. This mechanism is linked to the rotary switch and only
allows access to those jacks which are actually required for the
selected function. It also prevents the user from turning the rotary
switch to impermissible functions after the measurement cables
have already been plugged in.
Measuring Categories and their Significance per IEC 61010-1
CATDefinition
Measurements in electrical circuits
I
which are not directly connected to the mains:
for example electrical systems in motor vehicles and aircraft, batteries etc.
Measurements in electrical circuits
II
which are electrically connected to the low-voltage mains:
with plugs, e.g. at home, in the office or laboratory etc.
Measurements in building installations:
III
stationary power consumers, distributor terminals, devices connected
permanently to the distributor
Measurements at power sources for low-voltage installations:
The measuring category and the maximum rated voltage which
are printed on the device apply to your measuring instrument, for
example 1000 V CAT I I I.
For the application of measuring cables see page 66.
Observe the following safety precautions:
• The multimeter may not be used in potentially explosive
atmospheres.
• The multimeter may only be operated by persons who are ca-
pable of recognizing contact hazards and taking the appropriate
safety precautions. Contact hazards according to standard
exist anywhere, where voltages of greater than 33 V RMS or
70 V DC may occur. Avoid working alone when taking measurements which involve contact hazards. Be certain that a second person is present.
• Maximum allowable voltage between the voltage measuring
terminals, and between all connections and earth is 1000 V for
measuring category III, or 600 V for measuring category IV.
Exception SECULIFE HIT
AM/HITMD: 600 V CAT III and 300 V CAT IV.
8GMC-I Messtechnik GmbH
Safety Precautions
• 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 are
included in chapter 8, “Technical Data”, in the table entitled
“Measuring Functions and Measuring Ranges” in the “Overload Capacity” column.
• The multimeter may only be operated with installed batteries or
rechargeable batteries. Dangerous currents and voltages are
otherwise not indicated, and the instrument may be damaged.
• The instrument may not be operated if the fuse cover or the
battery compartment lid has been removed, or if its housing is
open.
• The input for the current measuring range is equipped with a
fuse link (exception: METRAHIT B
ASE).
Maximum permissible voltage for the measuring circuit (= rated
voltage of the fuse) is 1000 V AC/DC.
Use specified fuses only (see page 59)! The fuse must have a
breaking capacity of at least 30 kA.
Opening of Equipment / Repair
The equipment may be opened only by authorized service personnel to ensure the safe and correct operation of the equipment
and to keep the warranty valid.
Even original spare parts may be installed only by authorized service personnel.
In case the equipment was opened by unauthorized personnel,
no warranty regarding personal safety, measurement accuracy,
conformity with applicable safety measures or any consequential
damage is granted by the manufacturer.
Repair and Parts Replacement
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 or the replacement of
parts. If repair of a live open instrument is required, it 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, or if malfunctioning
occurs
• After long periods of storage under unfavorable conditions,
e.g. humidity, dust or extreme temperature (see “Ambient Conditions” on page 60)
GMC-I Messtechnik GmbH9
Safety Precautions
!
1.1 Use for Intended Purpose
• The respective multimeter is a portable device which can be
held in the hand during the performance of measurements.
• Only those types of measurements described in chapter 5 may
be performed with the measuring instrument.
• The measuring instrument, including measurement cables and
plug-on test probes, may only be utilized within the specified
measuring category (see page 59 and the table on page 8
regarding significance).
• Overload limits may not be exceeded. See technical data on
page 54 for overload values and overload limits.
• Measurements may only be performed under the specified
ambient conditions. See page 60 regarding operating temperature range and relative humidity.
• The measuring instrument may only be used in accordance
with the specified degree of protection (IP code) (see page 60).
1.2 Meanings of Danger Symbols
Warning concerning a point of danger
(attention: observe documentation!)
Warning concerning dangerous voltage at the measurement
input: U > 55 V AC or U > 70 V DC
1.3 Meanings of Acoustic Warning Signals
Voltage warning: > 1000 V (intermittent acoustic signal)
Current warning: > 10 A (intermittent acoustic signal)
Current warning: > 16 A (continuous acoustic signal)
1 Display (LCD) (see page 13 for significance of symbols)
2 MAN / AUTO shift key for manual/automatic measuring range selection
Increase parameter values
Operating mode menu:
3
ON / OFF | LIGHT
key for switching device and display illumination on and off
Select individual menu entries against direction of flow
4 FUNC | ENTER multifunction key
Operating mode menu: Acknowledge entry (ENTER)
Increase measuring range or move decimal point to the right (MAN function)
5
6
Rotary switch
for measuring functions, (see page 15 for significance of symbols)
7 DAkkS calibration mark
8 Connector socket for ground
9 Connector socket for current measurement with automatic blocking
10 Connector socket for voltage, resistance, temperature, diode
capacitance measurement (
METRAHIT X-
TRA/OUTDOOR
,
METRAHIT TECH and
SECULIFEHITAM/MD only) with automatic blocking
11 DATA / MIN / MAX
Key for freezing, comparing and deleting measured value, and for Min/Max
Decrease values
Operating mode menu: Select individual menu entries in direction of flow
12 MEASURE | SETUP
Key for switching back and forth between measuring and menu function
13 ZERO | ESC
Key for zero balancing
Operating mode menu:Exit current menu level and
return to a higher level,
exit parameters configuration
without saving data
14 Decrease measuring range or move decimal point to the left (MAN function)
15 Connector for power pack (METRAHIT X-TRA/OUTDOOR & HITAM/MD only)
16 Infrared interface (METRAHIT X-TRA/OUTDOOR & SECULIFEHITAM/MD only)
12GMC-I Messtechnik GmbH
and
Symbols Used in the Digital Display 1 Battery level indicator
1 2910
12
14
15
15
16
2017
22
23
765
1921
8
3
12
18
24
4
Battery full
Battery OK
Battery weak
Battery (almost) dead, U < 1.8 V
METRAHIT X-TRA/OUTDOOR and SECULIFEHITAM/MD:
Active data transmission to / from multimeter
IR interface in stand-by mode
(ready to receive starting commands)
2 ON: continuous operation (automatic shutdown deactivated)
3 MAN: manual measuring range selection is active
4 Digital display with decimal point and polarity display
5 max/min: Min/Max value storage
6 DATA: display memory, “freeze” measured value
7 STORE: memory mode active, with METRAHIT X-
SECULIFEHIT
AM/MD only
TRA/OUTDOOR and
8 ISO: no function here
9 Transformation factor (current clip factor),
with METRAHIT B
ASE and METRAHIT TECH only
10 IR: infrared interface display, with METRAHIT X-TRA/OUTDOOR and
SECULIFEHITAM/MDonly
11 Scale for analog display
12 Pointer for analog display (bar graph – pointer)
depending upon setting in SET menu for the A.diSP parameter
Triangle appears: indicates overranging
13 Diode measurement selected
14 Selected type of current
15 TRMS measurement
16 Pt100(0): selected platinum resistance thermometer with
automatic recognition of Pt100/Pt1000,
with METRAHIT X-
TRA/OUTDOOR and SECULIFEHITAM/MD only
17 Type K: temperature measurement with type K (NiCr-Ni) thermocouple
18 sec (seconds): unit of time
19 REL: relative measurement with reference to offset
20 Unit of measure
21 ZERO: zero balancing active
22 Warning regarding dangerous voltage: U > 55 V AC or U > 70 V DC
23 Continuity test with acoustic signal is active
24 h (hours): unit of time
V~0/4 V~ AC TRMSAlternating voltage, TRMS AC, full bandwidth
Hz (V)1Hz ~ ACVoltage frequency, full bandwidth
V~ 2V Fil ~ AC TRMSAlternating voltage, TRMS AC, with low-pass (1 kHz)—
Hz (V) 3Hz Fil ~ ACVoltage frequency, with low-pass (1 kHz)—
V~ 1 M
V~ 1V Fil ~ AC TRMSAlternating voltage, TRMS AC, up to 1 kHz, input 1 M—
Hz (V) 2Hz Fil ~ ACVoltage frequency, up to 1 kHz, input 1 M—
Hz (V) 1 M
V 0/2 V DCDirect voltage
V1V DC AC TRMSPulsating voltage, TRMS ()
MHz0/2 MHz(High) frequency @ 5 V~———
%1%Duty cycle @ 5 V~———
Temp TC0/2
Temp RT D1C Pt100/1000Temperature with resistance thermometer Pt100/Pt1000———
A0/2 A DCDirect current value—
A1A DC AC TRMSPulsating current value, TRMS AC DC—
A~0/2 A~ AC TRMSAlternating current value, TRMS AC—
Hz (A)1Hz ~ ACCurrent frequency—
Hz ()1Hz ~ AC Current frequency——
FUNC
DisplayMeasuring Function
METRAHIT X-
UTDOOR
O
SECULIFEHIT
AM/MD
TRA
METRAHIT T
ECH
METRAHIT PROMETRAHIT B
ASE
0/4 V~ AC TRMSAlternating voltage, TRMS AC, full bandwidth, input 1 M—
3Hz ~ ACVoltage frequency, full bandwidth, input 1 M—
Registration number
Date of calibraion (year – month)
German Accrediation Body GmbH – Calibration lab
XY123
2012-07
D-K-
15080-01-01
User Interface Symbols in the Following Chapters
... Scroll through main menu
... Scroll through sub-menu
Select decimal point
Increase/decrease value
timeSub-menu/parameter (7-segment font)
1nFoMain menu (7-segment font, boldface)
Symbols on the Device
Warning concerning a point of danger
(attention: observe documentation!)
Ground
CAT III / IV Measuring category I I I or I V device, see also
“Measuring Categories and their Significance per IEC
61010-1” on page 8
Continuous, doubled or reinforced insulation
Position of the infrared interface, window on the top of
the instrument (METRAHIT X-SECULIFEHITAM/MD only)
Position of the power pack connector socket,
see also chapter 3.1
(METRAHIT X-
TRA/OUTDOOR and SECULIFEHITAM/MD
only)
Fuse for current measuring ranges, see chapter 9.3
(not METRAHIT B
ASE)
The 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
under the search term WEEE (see also chapter 9.5).
Calibration seal (blue seal):
see also “Recalibration” on page 65.
TRA/OUTDOOR and
Indicates EC conformity
GMC-I Messtechnik GmbH15
Initial Start-Up – Setup
Attention!
!
Note
3Initial Start-Up
3.1 Inserting Batteries or Rechargeable Batteries
Be certain to refer to chapter 9.2 regarding correct battery
installation.
Momentary battery voltage can be queried in the Info menu (see
chapter 6.3).
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.
Switching the Instrument On via PC (METRAHIT X-
TRA/OUTDOOR
/AM/MD only)
The multimeter is switched on after transmission of a data block
from the PC, assuming the “irStb ” has been set to “ir on ”
Disconnect the instrument from the measuring circuit before opening the battery compartment lid in order to re-
(see chapter 6.4).
However, we recommend using the power saving mode: “ir off ”.
place the batteries.
Operation with the Power Pack
(accessory for METRAHIT X-
TRA and SECULIFEHITAM/MD, not included, see
chapter 10.3)
Installed batteries are disconnected electronically if the NA X-TRA
power pack is used, and need not be removed from the
instrument.
If rechargeable batteries are used, they must be recharged
Electrical discharge and high frequency interference may
cause incorrect displays to appear, and may disable the
measuring sequence.
Disconnect the device from the measuring circuit. Switch the
instrument off and back on again in order to reset. If the
problem persists, briefly dislodge the battery from the
connector contacts (see also chapter 9.2).
externally.
If the external power supply is switched off, the device is
automatically switched to battery operation without interruption.
3.2 Activation
Switching the Instrument On Manually
➭ Press the ON / OFF | LIGHT key until the display appears.
Power-up is acknowledged with a brief acoustic signal. As
long as the key is held depressed, all of the segments at the
liquid crystal display (LCD) are illuminated.
The LCD is depicted on page 13.
The instrument is ready for use as soon as the key is released.
16GMC-I Messtechnik GmbH
3.3 Setting the Operating Parameters
Setting Time and Date
See the “t iME ” and “dAtE ” parameter in chapter 6.4.
Display Modes for the Analog Display
Selection can be made from two different display modes
(see “A.diSP ” parameter in chapter 6.4).
Display Modes for the Digital Display
Selection can be made from two different display modes
(see “0.diSP ” parameter in chapter 6.4).
ON / OFF
LIGHT
FUNC
ENTER
ON / OFF
LIGHT
Auto-Range
8.8.8.8.8
Illumination On
000.00
ON/ OFF
LIGHT
Illumination Off
000.00
ON/ OFF
LIGHT
0ff
ON/ OFF
LIGHT
Long
(1 s)
3.4 Switching the Instrument Off
Switching the Instrument Off Manually
➭ Press the ON / OFF | LIGHT key until 0FF appears at the display.
Shutdown is acknowledged with a brief acoustic signal.
Automatic Shutdown
The instrument is switched off automatically if the measured value
remains unchanged for a long period of time (maximum measured
value fluctuation of approx. 0.8% of the measuring range per minute, or 1C or 1 F per minute), and if none of the keys or the rotary switch have been activated before a selected period of time
in minutes has elapsed (see “APoFF ” parameter on page 49.)
Shutdown is acknowledged with a brief acoustic signal.
Exceptions include:
Transmission and memory mode operation, continuous operation
and whenever a dangerous voltage is applied to the input (U > 55
V AC or U > 70 V DC).
Disabling Automatic Shutdown
The instrument can be set to continuous operation.
➭ Simultaneously press the and keys to
this end.
The “Continuous On” function is indicated at by means of the
ON display to the right of the battery symbol.
The “Continuous On” setting can only be cancelled by changing the
respective parameter, and not by switching the instrument off
(see “APoFF ” on page 49).
Initial Start-Up – Setup
GMC-I Messtechnik GmbH17
Control Functions
4Control Functions
4.1 Selecting Measuring Functions and Measuring Ranges
The rotary 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 “A” functions.
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.
4.1.1 Automatic Range Selection
The multimeter is equipped with auto-ranging for all measuring
functions, except for temperature measurement, diode and
continuity testing, and the MHz measuring function. Auto-ranging
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. When the
instrument is switched to frequency measurement, the previously
selected voltage measuring range remains active.
The Auto-Ranging Function
The multimeter is switched automatically to the next higher range
at (11999 d + 1 d 01200 d), and to the next lower range at
(01100 d - 1 d 10990 d).
Exception, capacitance measurement:
The multimeter is switched automatically to the next higher range
at (1199 d + 1 d 0120 d), and to the next lower range at
(0110 d - 1 d 1099 d).
4.1.2 Manual Measuring Range Selection
Auto-ranging can be deactivated and measuring ranges can be
selected manually in accordance with the following table by
pressing the MAN / AUTO button.
The desired measuring range can then be selected with the
scroll key.
or
The instrument is automatically returned to range selection when
the MAN / AUTO key is pressed, the rotary switch is activated or the
instrument is switched off and back on again.
Overview: Auto-Ranging and Manual Range Selection
FunctionDisplay
MAN / AUTO
Range switching sequence for:
V:100 mV*
Hz: 100 Hz
: 100
10 M 40 M
A:METRA HIT X-
100A 1 mA 10 mA 100 mA 1A 10 A (16 A)
or
MAN / AUTO
* Via manual measuring range selection only
METRAHIT TECH:
10 mA
METRAHIT P
A:METRA HIT B
see chapter 5.7.3 ff
F:METRAHIT X-
METRAHIT T
10 nF 100 nF 1F 10F 100F 1000F
Return to automatic measuring range selection—
Manual mode active:
utilized measuring range is fixed
1 V 10 V 100 V 1000 V
1 kHz 10 kHz 100 kHz
1 k 10 k 100 k1 M
TRA/OUTDOOR and SECULIFEHITAM/MD:
100 mA 1A 10 A (16 A)
RO: 1A
10 A (16 A)
ASE and METRAHIT TECH:
TRA/OUTDOOR, SECULIFEHITAM/MD and
ECH:
MAN
MAN
18GMC-I Messtechnik GmbH
Control Functions
Note
4.1.3 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 the best resolution (see chapter 4.1.2).
or
•With the DATA function (see chapter 4.4). In this way, the
appropriate measuring range is selected automatically after the
first measurement and the second measurement is executed
more quickly.
The selected measuring range remains active for the subsequent
series of measurements with these two functions.
4.2 Zero Offset / Relative Measurements
Depending upon deviation from the zero point, zero balancing or
a reference value for relative measurements can be stored to
memory:
Deviation from zero
– With short-circuited measurement cables for V, , A
– With open input for capacitance unit of measure F
0 to 200 digitsZERO REL
> 200 to 5000 digitsREL
Display
The applicable reference or correction value is deducted
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.
Zero balancing and reference value adjustment can be used for
auto-ranging, as well as for manual measuring range selection.
Zero Balancing
➭ Plug the measurement cables into the instrument and connect
the free ends to each other, except for capacitance
measurement in which case the ends of the cables are not
connected to each other.
➭ Briefly press the ZERO | ESC key.
The instrument acknowledges zero balancing with an acoustic
signal, and the “ZERO REL” symbol appears at the LCD. The
value measured at the moment the key is pressed serves as a
reference value.
➭ Zero balancing can be cleared by once again pressing the
ZERO | ESC key.
As a result of TRMS measurement, the multimeter displays a
residual value of 1 to 30 digits with short-circuited measurement cables as the zero point for V AC / I AC or V(AC+DC) /
I (AC+DC) measurements (non-linearity of the TRMS converter). This has no influence on specified accuracy above
2% of the measuring range (or 3% in the mV range).
Setting the Reference Value
➭ Plug the measuring cables into the instrument and measure a
reference value (max. 5000 digits).
GMC-I Messtechnik GmbH19
Control Functions
➭ Briefly press the ZERO | ESC key.
The instrument acknowledges storage of the reference value
with an acoustic signal, and the “ZERO REL” or the “REL”
symbol appears at the LCD. The value measured at the
moment the key is pressed serves as a reference value.
➭ The reference value can be cleared by once again pressing the
ZERO | ESC key.
Notes Regarding Relative Measurement
• Relative measurement effects the digital display only. The
analog display continues to read out the original measured
value.
• In the case of relative measurement, / F or AC quantities
may also appear as negative values.
4.3 Display (LCD)
4.3.1 Digital Display
Measured Value, Unit of Measure, Type of Current, Polarity
4.3.2 Analog Display
Measured Value, Polarity
The analog display demonstrates the dynamic performance of a
moving-coil mechanism. This display is especially advantageous
for observing measured value fluctuation, and for balancing
procedures.
Two different display modes can be selected in the “SET ” menu
with the help of the “A.diSP ” parameter (see chapter 6.4):
• Bar graph
• Pointer: The current measured value is tracked in real-time.
The analog scale displays a negative range of 2 scale divisions for
the measurement of zero-frequency quantities, allowing for
precise observation of measured value fluctuation around zero. If
the measured value exceeds the negative range of 2 scale
divisions, polarity is reversed at the analog display.
Scaling of the analog scale is automatic. This is very helpful for
manual measuring range selection.
The measured value with decimal and plus or minus sign appears
at the digital display. The selected unit of measure and type of
current are displayed as well. A minus sign appears to the left of
the value during measurement of zero-frequency quantities, if the
plus pole of the measured quantity is applied to the “” input.
Overranging
Overranging in the positive range is displayed by means of the
right triangle symbol.
The “0.diSP ” parameter can be used to determine whether lead-
ing zeros will be appear or be suppressed at the measured value
display (see chapter 6.4).
Overranging
Refresh Rate
In the bar graph and pointer modes, the analog display is
refreshed 40 times per second.
If the upper range limit of 12,000 digits is exceeded “0L” (overload)
appears at the display.
Exceptions: “0L” appears as of 1200 digits for capacitance
measurement, and as of 5100 digits for diode testing.
20GMC-I Messtechnik GmbH
Note
V, A, Hz
t [s]
100%
10%
Activated
Reactivated
Save
Save
10,000 digits
of measuring range
F, MHz, %
Control Functions
4.4 Measured Value Storage: DATA (auto-hold / compare)
An individual measured value can be automatically “frozen” with
the DATA function (auto-hold). This is useful, for example, when
contacting the measuring points with the test probes requires
your full attention. After the measuring signal has been applied
and the measured value has settled in in accordance with the
“condition” listed in the table below, the measured value is frozen
at the digital display and an acoustic signal is generated. The test
probes can now be removed from the measuring points, and the
measured value can be read from the digital display. If the
measuring signal falls below the value specified in the table, the
function is reactivated for storage of the next value.
Measured Value Comparison (DATA Compare)
If the currently frozen value deviates from the first saved value by
less than 100 digits, the acoustic signal is generated twice. If
deviation is greater than 100 digits, only a brief acoustic signal is
generated.
The DATA function has no effect on the analog display, at
DATA
Function
Press
DATA /
Min/Max
ActivateBriefblinksOnce
Save
(stabilized
measured
value)
Reactivate
1)
which the current measured value continues to appear.
However, when the digital display if “frozen”, the decimal
point is fixed as well (fixed measuring range, symbol: MAN).
The selected measuring range should not be manually
changed as long as the DATA function is active.
The DATA function is deactivated by pressing and holding the
DATA/MIN/MAX key (for approx. 1 second), when the measuring
function is changed or when the instrument is switched off and
back on again.
GMC-I Messtechnik GmbH21
Change to
Min/Max
BriefSee table in chapter 4.4.1
ExitLong
1)
Reactivation results from falling short of specified measured value limits.
2)
Two acoustic signals are generated the first time a measured value is
saved as a reference value. For subsequent data hold, two acoustic
signals are only generated if the currently frozen value deviates from the
first saved value by less than 100 digits.
Key: MV = measured value, R = measuring range
ConditionResponse from Instrument
Measuring
Function
V, A, F, Hz,
MHz, %
V, A, F, Hz,
MHz, %
Measuring
Signal
> 10%
of R
0L
< 10%
of R
= 0L
MV
Digital
Is displayed
Stored
MV
Display
Is cleared Is cleared
DATA
Static
Blinks
Acoustic
Once
Twi ce
Twi ce
2)
Control Functions
Note
Example
The voltage measuring range is set manually to 10 V.
The first measured value is 5 V, which is stored to memory
because it is greater than 10% of the measuring range (= 1 V),
and is thus reliably above the background noise level. As soon as
the measured values drops to less than 10% of the measuring
range, i.e. amounts to less than 1 V which corresponds to
removal of the test probes from the measuring point, the
instrument is ready to store a new value.
4.4.1 Saving Minimum and Maximum Values – MIN/MAX Function
Minimum and maximum measured values applied to the
measuring instrument’s input after the Min/Max function has been
activated can be “frozen” at the display. The most important use
of this function is the determination of minimum and maximum
values during long-term measured value observation.
The Min/Max function can be activated in all measuring functions.
The Min/Max function has no effect on the analog display, at
which the momentary measured value continues to appear.
Apply the measured quantity to the instrument and set the
measuring range with the MAN / AUTO key before activating the
Min/Max function.
The Min/Max function is deactivated by pressing and holding the
DATA/MIN/MAX key (for approx. 1 second), when the measuring
function is changed or when the instrument is switched off and
back on again.
Min/Max
Function
1
Activate
and save
2
Save and
display
3
Return to 1
StopLongAre deleted
Press
DATA /
Min/Max
2 x briefare saved
Brief
Brief
Brief
Min. and Max.
Measured Values
Storage continues in
background,
new min. and max.
values are displayed.
Same as 1,
stored values are not
deleted
Response from Instrument
Display
Measured Value
Digital
Momentary
measured
value
Saved min.
value
Saved max.
value
Same as 1
Momentary
measured
value
Acoustic
Max.
Min.
Max
and
min.
Min.1 x
Max.1 x
Same
as 1
Is
deleted
Signal
2 x
1 x
2 x
As opposed to the DATA function, the Min/Max function can
also be used for temperature measurement.
22GMC-I Messtechnik GmbH
Control Functions
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
4.5 Measurement Data Recording (METRAHIT X-TRA/OUTDOOR and
SECULIFEHIT
The METRAHIT X-
AM/MD only)
TRA/OUTDOOR/SECULIFEHITAM/MD is capable of re-
cording measurement data using an adjustable sampling rate for
long periods of time in the form of measurement series. Data are
stored to a battery backed memory module, and are retained
even after the multimeter is switched off. The system acquires
measured values relative to real-time.
Stored measured values can subsequently be read out with the
help of METRAwin 10 software. The only prerequisite is a PC which
is connected by means of an interface cable to the
USB X-TRA bi-directional interface adapter, which is in turn
plugged onto the METRAHIT X-
TRA/OUTDOOR or SECULIFEHITAM/MD.
See also chapter 7.
Memory Parameters Overview (METRAHIT X-TRA/OUTDOOR or
SECULIFEHITAM/MD only)
ParameterPage: header
CLEAr
EMpty
0CCvP
rAtE
StArt
StoP
24: Clear Memory
24: Clear Memory – appears after CLEAr
24: Querying Memory Occupancy
48: rAtE – set the sampling rate (HIT X-TRA/OUTDOOR/HITAM/MD only)
23: Starting Recording via Menu Functions
24: Ending Recording
The STORE Menu Function
➭ First set the sampling rate for memory mode operation (see rAtE
parameter in chapter 6.4) , and then start memory mode operation.
➭ First select the desired measuring function and an appropriate
measuring range.
➭ Check the battery charge level before starting long-term
measurement recordings (see chapter 6.3).
Connect the NA X-TRA power pack if required.
Starting Recording via Menu Functions
➭ Switch to the “SET ” mode by pressing MEASURE | SETUP and se-
lect the “StorE ” menu.
1nFo ... StorE 000.0% StArt
➭ Memory mode operation is started by pressing FUNC | ENTER.
STORE appears underneath the analog display and indicates
that memory mode operation has been activated.
“StoP ” appears at the digital display.
➭ Press MEASURE | SETUP in order to return to the measuring
function.
GMC-I Messtechnik GmbH23
Control Functions
FUNC
ENTER
MEASURE
SETUP
FUNC
ENTER
MEASURE
SETUP
FUNC
ENTER
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
During Recording
STORE is displayed underneath the analog display during memory
mode operation, and
000.3%
StoP
memory occupancy
The following message appears as soon as memory is full: “
can be controlled:
100.0
%”.
In order to be able to observe measured values during recording,
switch to the measuring function by pressing MEASURE | SETUP.
The display is returned to the memory menu after once again
pressing MEASURE | SETUP.
A new memory block is created when another measuring function
is selected with the rotary switch or the FUNC | ENTER key. Data
storage then continues automatically.
Ending Recording
➭ “StoP ” appears at the display after pressing MEASURE | SETUP.
StoP start
➭ Acknowledge the “StoP ” display by pressing FUNC | ENTER.
STORE is cleared from the display, indicating that recording has
been ended.
➭ Press MEASURE | SETUP in order to return to the measuring
function.
➭ Memory mode operation can also be exited by switching the
multimeter off.
Querying Memory Occupancy
Memory occupancy can be queried during recording with the
help of the “1nFo ” menu (see also chapter 6.3).
Memory occupancy range: 000.1% to 099.9%.
1nFo
bAtt:
...
0CCvP
%:
017.4
%
Memory occupancy can be queried before recording is started via
the “StorE” menu.
... StorE017.4 % StArt
1nFo
Clear Memory
This function deletes all measured values from memory!
This function cannot be executed during memory mode
operation.
... StorE 017. 4% w StArt
1nFo
CLEArempty
24GMC-I Messtechnik GmbH
Control Functions
GMC-I Messtechnik GmbH25
V/Hz, , Temperature, and A/Hz Measurements
5Measurements
5.1 Voltage Measurement
Notes Regarding Voltage Measurement
• The multimeter may only be operated with installed batteries or
rechargeable batteries. Dangerous voltages are otherwise not
indicated, and the instrument may be damaged.
• The multimeter 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.
The test probes may only be only gripped up to the finger
Do not touch the metallic test probes under any
guard.
circumstances.
• Avoid working alone when taking measurements which involve
contact hazards. Be certain that a second person is present.
• Maximum permissible voltage between the connector sockets,
(9 and 10) and ground (8) is 1000 V for measuring category I I I,
and 600 V for measuring category IV.
Exception SECULIFE HIT
• Be prepared for the occurrence of unexpected voltages at
devices under test (e.g. defective devices). For example,
capacitors may be dangerously charged.
• 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.
AM/HITMD: 600 V CAT III and 300 V CAT IV.
• Be aware of the fact that dangerous voltage spikes are not displayed
during measurement with the low-pass filter.
We recommend measuring voltage without the low-pass filter first, in
order to be able to detect any dangerous voltages.
• Be absolutely certain that the measuring ranges are not
overloaded beyond their allowable capacities. Limit values are
included in chapter 8, “Technical Data”, in the table entitled
“Measuring Functions and Measuring Ranges” in the “Overload Capacity” column.
Scope of Functions, Voltage Measurement
Function
V AC / Hz TRMS
(Ri 9 M)
V AC / LP filter 1 kHz
(Ri = 1 M2)) TRMS
V AC+DC TRMS
(Ri 9 M)
V DC (Ri 9 M)
MHz at 5 V AC
Duty cycle as %
Freq. response, V AC
1)
A 1 kHz low-pass filter can be used in this case, in order to filter out high
frequency pulses of greater than 1 kHz, for example when performing
measurements at pulsed motor drives.
2)
Input resistance of approx. 1 M. Erroneous displays resulting from
capacitive coupling during voltage measurement in power supply
systems are reduced to a minimum in this way.
METRAHIT X-
OUTDOOR/
SECULIFEHIT
AM/MD
1)
TRA
METRAHIT T
—
———
———
20 kHz10 kHz10 kHz1 kHz
ECH
METRAHIT PROMETRAHIT B
ASE
26GMC-I Messtechnik GmbH
5.1.1 Direct and Pulsating Voltage Measurement, V DC and V (DC+AC)
Note
Note
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
COM
V
Tem p
– (+)
+ (–)
V= : 100 mV1000 V
020.00
V
DC
AC
TRMS
020.00
V
DC
V
V
V
V
> 55 V AC or > 70 V DC:
> 1000 V:
Warnings regarding dangerous voltage:
Max. 1000 V (< 10 kHz)
V: 100 mV1000 V
Hz: 1Hz 100 kHz
Max. 100 V (> 10 kHz)
P
max
= 3 x 106 V x Hz
Measuring Ranges:
230.0
FUNC
ENTER
for U > 100 V
Only to observe for METRA HIT TECH: Set the CLiP parameter to
0FF in the current clip setup menu. Otherwise all measured
values are displayed in amperes, and are corrected by the
amount resulting from the selected transformation ratio for
an interconnected clip-on current sensor.
1 / 10/100/1000 / 0ff
... SETrAtE ... CLIP
1nFo
➭ In accordance with the voltage to be measured, turn the rotary
switch to V or V.
➭ Connect the measurement cables as shown.
The “” connector jack should be grounded.
V/Hz, , Temperature, and A/Hz Measurements
An intermittent acoustic signal warns the operator if the measured value exceeds the upper range limit in the 1000 V range.
Make sure that a current measuring range (“A”) has not been
activated when the multimeter is connected for voltage measurement! If the fuse’s blowing limits are exceeded as a result of operator error, both the operator and the instrument are in danger!
With the rotary switch in the V position, the multimeter is always
set to the 1 V measuring range immediately after it is switched on.
As soon a the MAN / AUTO key is pressed, and assuming the
measured value is less than 90 mV, the multimeter is switched to
the mV measuring range.
GMC-I Messtechnik GmbH27
V/Hz, , Temperature, and A/Hz Measurements
Note
Note
Attention!
!
1 kHz
5.1.2 Alternating Voltage Measurement with 1 M Load Resistance
and Frequency Measurement with Selectable Low-Pass Filter
(METRAHIT X-TRA/OUTDOOR/TECH/PRO/SECULIFEHITAM/MD only)
The measuring instrument includes a V
switch position for
1M
electricians with an input resistance of approximately 1 M.
Erroneous displays resulting from capacitive coupling during
voltage measurement in power supply systems are reduced to a
minimum in this way.
METRAHIT TECH: see note in chapter 5.1.1.
➭ In accordance with the voltage to be measured, turn the rotary
switch to V~
or .
1M
➭ Connect the measurement cables as shown.
The “” connector jack should be grounded.
Voltage Measurement
An intermittent acoustic signal warns the operator if the
measured value exceeds the upper range limit in the 1000 V
range.
Make sure that a current measuring range (“A”) has not been
activated when the multimeter is connected for voltage measurement! If the fuse’s blowing limits are exceeded as a result of operator error, both the operator and the instrument are in danger!
➭ You can switch back and forth between voltage measurement
with and without low-pass filter.
➭ Press the FUNC | ENTER multifunction key repeatedly until unit of
measure V or V/Fil appears at the display.
Frequency Measurement
➭ Apply the measured quantity is the same way as for voltage
measurement.
➭ Manually select the measuring range for the voltage amplitude.
When the instrument is switched to frequency measurement,
the previously selected voltage measuring range remains
active.
➭ You can switch back and forth between frequency
measurement with and without low-pass filter.
Press the FUNC | ENTER multifunction key repeatedly until unit of
measure Hz or Hz/Fil appears at the display.
Lowest measurable frequencies and maximum allowable
voltages are included in chapter 8, “Technical Data”.
Measurement with Low-Pass Filter
Be aware of the fact that dangerous voltage spikes are not
displayed during this type of measurement (see also “Voltage
Comparator”.
We recommend measuring voltage without the low-pass filter
first, in order to be able to detect any dangerous voltages.
A 1 kHz low-pass filter can be activated if required, in order to
filter out high frequency pulses of greater than 1 kHz, for example
when performing measurements at pulsed motor drives, i.e.
undesired voltages of greater than 1 kHz can be suppressed.
The active low-pass filter is indicated by the Fil display. The
multimeter is automatically switched to manual measuring range
selection.
28GMC-I Messtechnik GmbH
COM
V
Tem p
Max. 1000 V (< 10 kHz)
V~: 100 mV1000 V
Hz: 1Hz 100 kHz
~
Max. 100 V (> 10 kHz)
P
max
= 3 x 106 V x Hz
Measuring Ranges:
> 55 V AC or > 70 V DC:
> 1000 V:
Warnings regarding dangerous voltage:
230.0
for U > 100 V
V~
1 kHz
1M
1 kHz
V~
0225.6
V
AC
TRMS
050.00
Hz
AC
Hz
Hz with Filter
Hz
1 kHz
0226.0
V
AC
TRMS
F
il
V~
F
il
049.99
Hz
AC
V~ with Filter
!
!
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
V/Hz, , Temperature, and A/Hz Measurements
Voltage Comparator for Displaying Dangerous Voltage
The input signal or measuring signal is checked by a voltage
comparator for dangerous spikes, because these do not appear
at the display when the low-pass filter is used.
At voltages of greater than 55 V AC or 70 V DC, a danger symbol
appears at the display: .
GMC-I Messtechnik GmbH29
V/Hz, , Temperature, and A/Hz Measurements
Note
Note
Attention!
!
5.1.3 Alternating Voltage and Frequency Measurement V AC and Hz
with Selectable Low-Pass Filter
(METRAHIT X-TRA/OUTDOOR/TECH/PRO/SECULIFEHITAM/MD only)
METRAHIT TECH: see note in chapter 5.1.1.
➭ In accordance with the voltage or frequency to be measured,
turn the rotary switch to V~ or Hz.
➭ Connect the measurement cables as shown.
The “” connector jack should be grounded.
Voltage Measurement
An intermittent acoustic signal warns the operator if the measured value exceeds the upper range limit in the 1000 V range.
Make sure that a current measuring range (“A”) has not been
activated when the multimeter is connected for voltage measurement! If the fuse’s blowing limits are exceeded as a result of operator error, both the operator and the instrument are in danger!
➭ You can switch back and forth between voltage measurement
with and without low-pass filter.
➭ Press the FUNC | ENTER multifunction key repeatedly until unit of
measure V or V/Fil appears at the display.
30GMC-I Messtechnik GmbH
Frequency Measurement
➭ Apply the measured quantity is the same way as for voltage
measurement.
➭ Manually select the measuring range for the voltage amplitude.
When the instrument is switched to frequency measurement,
the previously selected voltage measuring range remains
active.
➭ You can switch back and forth between frequency
measurement with and without low-pass filter.
Press the FUNC | ENTER multifunction key repeatedly until unit of
measure Hz or Hz/Fil appears at the display.
Lowest measurable frequencies and maximum allowable
voltages are included in chapter 8, “Technical Data”.
Measurement with Low-Pass Filter
Be aware of the fact that dangerous voltage spikes are not
displayed during this type of measurement (see also “Voltage
Comparator”.
We recommend measuring voltage without the low-pass filter
first, in order to be able to detect any dangerous voltages.
A 1 kHz low-pass filter can be activated if required, in order to
filter out high frequency pulses of greater than 1 kHz, for example
when performing measurements at pulsed motor drives, i.e.
undesired voltages of greater than 1 kHz can be suppressed.
The active low-pass filter is indicated by the Fil display. The
multimeter is automatically switched to manual measuring range
selection.
The specified measuring accuracy is not achieved when the filter
is activated and signals are greater than 100 Hz.
COM
V
Tem p
Max. 1000 V (< 10 kHz)
V~: 100 mV1000 V
Hz: 1Hz 100 kHz
~
Max. 100 V (> 10 kHz)
P
max
= 3 x 106 V x Hz
Measuring Ranges:
> 55 V AC or > 70 V DC:
> 1000 V:
Warnings regarding dangerous voltage:
230.0
for U > 100 V
0230.6
V
AC
TRMS
050.03
Hz
AC
V~
Hz
V~
Hz
0229.6
V
AC
TRMS
F
il
V~ with Filter
1 kHz
V~
050.00
AC
F
il
Hz
Hz with Filter
1 kHz
Hz
!
!
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
Voltage Comparator for Displaying Dangerous Voltage
The input signal or measuring signal is checked by a voltage
comparator for dangerous spikes, because these do not appear
at the display when the low-pass filter is used.
At voltages of greater than 55 V AC or 70 V DC, a danger symbol
appears at the display:
GMC-I Messtechnik GmbH31
V/Hz, , Temperature, and A/Hz Measurements
V/Hz, , Temperature, and A/Hz Measurements
Attention!
!
Note
duty cycle (%) =
pulse duration (t
E
)
pulse period (t
P
)
100
COM
V
Tem p
Max. 5 V
!
1.0323
MHz
002.00
%
MHz
%
MHz
%
U
t
t
E
t
P
tE/t
P
Pulse Time Quantities
f
P
pulse frequency = 1/tP
t
E
pulse duration
t
P
pulse period
t
P
– tEinterpulse period
t
E/tP
pulse or duty cycle
f
P
FUNC
ENTER
Measuring Ranges:
MHztE/t
P
100 Hz ... 1 kHz2 ... 98%
... 10 kHz5 ... 95%
... 100 kHz 10 ... 90%
5.1.4 Frequency and Duty Cycle Measurements
(METRAHIT X-
➭ Set the rotary switch to MHz or %.
➭ Connect the measurement cables as shown.
Make sure that a current measuring range (“A”) has not been
activated when the multimeter is connected for frequency or
duty cycle measurement!
The applied signal voltage may not exceed 5 V.
TRA/OUTDOOR/SECULIFEHITAM/MD only)
Frequency Measurement, MHz
A 5 V signal with a frequency of up to 1 MHz is measured and
displayed using MHz as a unit of measure. Pulse frequency
demonstrates the reciprocal value of pulse period.
Duty Cycle Measurement, t
The ratio of pulse duration to pulse period is measured with
periodic square-wave signals and displayed as a percentage.
E/tP
The applied frequency must remain constant during duty
cycle measurement.
32GMC-I Messtechnik GmbH
5.2 Resistance Measurement,
Note
COM
V
Tem p
R
x
R
x
0V !
!
000.00
k
100 40 M
Measuring Ranges:
➭ Disconnect supply power from the electrical circuit of the
device to be measured, and discharge all high-voltage
capacitors.
➭ Make sure that the device under test is voltage-free.
Interference voltages distort measurement results!
Refer to chapter 5.1.1 regarding testing for the absence of
voltage with the help of the direct voltage measurement.
➭ Set the rotary switch to “”.
➭ Connect the device under test as shown.
Use short or shielded measurement cables in the case of
high-impedance resistance.
Improving Accuracy by means of Zero Balancing
Cable resistance and contact resistance can be eliminated in all
measuring ranges by means of zero balancing (see chapter 4.2).
V/Hz, , Temperature, and A/Hz Measurements
GMC-I Messtechnik GmbH33
V/Hz, , Temperature, and A/Hz Measurements
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
COM
V
Tem p
0V !
!
000.8
0.443
V
DC
R < 1, 10, 20, 30, 40, 90
FUNC
ENTER
5.3 Continuity Test
➭ Disconnect supply power from the electrical circuit of the
device to be measured, and discharge all high-voltage
capacitors.
➭ Make sure that the device under test is voltage-free.
Depending upon the selected limit value, the multimeter
generates a continuous acoustic signal in the case of continuity or
short-circuit, i.e. at a value of less than the selected limit value.
“0L” appears at the display in the case of an open connection.
The limit value can be adjusted in the “SETUP” menu (see also
chapter 6.4):
... SETrAtE ... bEEP
1nFo
1, 10, 20, 30, 40, 90
(10 = default setting)
34GMC-I Messtechnik GmbH
5.4 Diode Testing with a Constant Current of 1 mA
Note
COM
V
Tem p
Forward DirectionReverse Direction
0V !
0.654
0.L
to 5.100 V
Measuring Range:
+
–
0.443
V
!
000.8
DC
FUNC
ENTER
➭ Disconnect supply power from the electrical circuit of the
device to be measured, and discharge all high-voltage
capacitors.
➭ Make sure that the device under test is voltage-free.
Interference voltages distort measurement results!
Refer to chapter 5.1.1 regarding testing for the absence of
voltage with the help of the direct voltage measurement.
➭ Set the rotary switch to .
FUNC
➭ Press the
➭ Connect the device under test as shown.
| ENTER
key.
V/Hz, , Temperature, and A/Hz Measurements
Conducting Direction and Short-Circuit
The instrument displays forward voltage in volts (display: 4
places). As long as voltage drop does not exceed the maximum
display value of 5.1 V, several series connected components or
reference diodes can be tested with a small reference voltage and
reference diodes.
Reverse Direction and Interruption
The measuring instrument indicates overload 0L.
Resistors and semiconductor paths connected in parallel to
the diode distort measurement results!
GMC-I Messtechnik GmbH35
V/Hz, , Temperature, and A/Hz Measurements
Note
Note
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
Te mp
TC
0023.3
°C
Tem p
RTD
Typ e K
TC
COM
V
Tem p
TE (TC)
0256.0
°C
Pt1000
RTD
Measuring Range
TE (TC)K (NiCr-Ni)–250.0 + 1372.0C
FUNC
ENTER
5.5 Temperature Measurement
Temperature measurement is performed with a type K
thermocouple (accessory, not included), which is connected to
the voltage input. Alternatively, a Pt100 or Pt1000 resistance
thermometer can be used with the METRAHIT X-TRA/OUTDOOR/SECULIFEHITAM/MD .
The internal reference temperature (temperature of the internal reference junction) is measured by a temperature sensor
inside of the instrument. This may be somewhat above room
temperature as a result of internal heat-up, or moving from
warmer to colder surroundings or vice versa.
Selecting the Unit of Measure for Temperature
... tEMP °C / °F
1nFo
➭ Connect the sensor to the two accessible jacks. The instru-
ment displays the measured temperature using the selected
unit of measure.
(°C = default setting)
5.5.1 Measurement with Thermocouples, Temp TC
➭ Set the rotary switch to “Temp
TC
”.
METRAHIT X-TRA/OUTDOOR/SECULIFEHITAM/MD only:
The last selected temperature measurement or the last
selected temperature sensor, i.e. type K or Pt100/Pt1000,
remains in memory and is accordingly displayed. Press the
FUNC | ENTER key in order to change to the other measuring
function if required.
➭ The reference temperature is measured at the internal
reference junction (see parameter “1tEMP ” in chapter 6.3
regarding querying).
The last selected temperature measurement or sensor, i.e. type K
or Pt100/Pt1000, remains in memory and is accordingly
displayed. Press the FUNC | ENTER key in order to change to the
other measuring function if required. The sensor type, i.e. Pt100
or Pt1000, is detected automatically and displayed.
There are two different ways to compensate for cable resistance:
Automatic Compensation
➭ Press the ZERO | ESC key.
“Short leads” appears at the display.
If you prefer to enter cable resistance directly, you can skip the
following entry prompt.
➭ Short circuit the measuring instrument’s connector cables.
“000.00 ” appears at the display. After pressing the FUNC | ENTER key, automatic compensation of cable resistance is
activated for all subsequent measurements. The short-circuit
can now be eliminated, and the device is ready for use.
Entering Cable Resistance
➭ Press the ZERO | ESC key once again in the automatic
compensation menu.
➭ Enter the known resistance of the connector cables with the
scroll keys: Select the digit to be changes with the
and change the respectively selected digit with the keys.
The default value is 0.43 . Values can be selected within a
range of 0 to 50 .
GMC-I Messtechnik GmbH37
TRA/OUTDOOR
/SECULIFEHITAM/MD only)
RTD
”.
keys,
➭
Upon pressing the
the display is returned to the measuring function. Cable resistance remains in memory even after the instrument has been switched off.
FUNC | ENTER
key, the selected value is activated and
V/Hz, , Temperature, and A/Hz Measurements
Note
COM
V
Tem p
0V !
!
10.38
F
+
–
+
–
10 nF ... 1000 F
Measuring Ranges:
5.6 Capacitance Measurement
(METRAHIT X-
➭ Disconnect supply power from the electrical circuit of the
device to be measured, and discharge all high-voltage
capacitors.
➭ Make sure that the device under test is voltage-free.
Capacitors must always be discharged before measurement is
performed.
Interference voltages distort measurement results!
Refer to chapter 5.1.1 regarding testing for the absence of
voltage with the help of the direct voltage measurement.
➭ Set the rotary switch to “”.
➭ Connect the (discharged!) device under test to the sockets
with the measurement cables as shown.
TRA/OUTDOOR
/SECULIFEHITAM/MD and METRAHIT T
ECH
only)
The “–” pole of polarized capacitors must be connected to
the “” jack.
Resistors and semiconductor paths connected in parallel to
the capacitor distort measurement results!
38GMC-I Messtechnik GmbH
V/Hz, , Temperature, and A/Hz Measurements
5.7 Current Measurement
Notes Regarding Current Measurement
• The multimeter may only be operated with installed batteries or
rechargeable batteries. Dangerous currents are otherwise not
indicated, and the instrument may be damaged.
• Set up the measuring circuit in a mechanically secure fashion,
and secure it against inadvertent breaks. Select conductor
cross-sections and lay out connections such that they do not
overheat.
• An intermittent acoustic signal warns of current greater than
10 A. An continuous acoustic signal warns of current greater
than 16 A.
• The input for the current measuring range is equipped with a
fuse link. Maximum permissible voltage for the measuring
circuit (= rated voltage of the fuse) is 1000 V AC/DC.
Use specified fuses only! The fuse must have a breaking capacity of at least 30 kA.
• If the fuse for the active current measuring range blows, “FUSE ”
appears at the digital display, and an acoustic signal is
generated at the same time.
• If a fuse should blow, eliminate the cause of overload before
placing the instrument back into service!
• Fuse replacement is described in chapter 9.3.
• Be absolutely certain that the measuring ranges are not
overloaded beyond their allowable capacities. Limit values are
included in chapter 8, “Technical Data”, in the table entitled
“Measuring Functions and Measuring Ranges” in the “Overload Capacity” column.
Scope of Functions, Current Measurement, Direct Connection
Function
A AC / Hz~100 A
A AC+DC TRMS
A DC100 A
1000 V fuse
METRA HIT X-
OUTDOOR
SECULIFEHIT
AM/MD
1/10/100 mA
1 A / 10 (16) A
1/10/100 mA
1A / 10 (16) A
1/10/100 mA
1A / 10 (16) A
TRA
METRAHIT T
1 A / 10 (16) A
100 A
1A / 10 (16) A
1A / 10 (16) A
—
10/100 mA
10/100 mA
10/100 mA
ECH
METRAHIT PROMETRAHIT B
1 A / 10 (16) A
1 A / 10 (16) A
1 A / 10 (16) A
—
—
—
Scope of Functions, Current Measurement via Clip-On Current Sensor
Function
Transformation
Factor
A AC / Hz
A AC+DC
A DC
Hz (A AC)
METRA HIT X-
OUTDOOR
SECULIFEHIT
AM/MD
TRA
METRAHIT T
——
——
——
——
... 30 kHz... 30 kHz... 30 kHz... 30 kHz
ECH
METRAHIT PROMETRAHIT B
ASE
ASE
GMC-I Messtechnik GmbH39
V/Hz, , Temperature, and A/Hz Measurements
COM mA A
V
Tem p
~
R
x
~
R
x
1
3
2
I > 10 A
!
A
A
003.50
A
DC
003.50
A
DC
AC
TRMS
A
A
8.8.8.8.8
!
I > 16 A
Current
Measuring Ranges:
Current measurement
may only be performed
with installed batteries!
FUNC
ENTER
METRAHITX-TRA/OUTDOOR
METRAHITPRO
1 A / 10 A (16 A max. 30 s)
100 A / 1 mA
10 mA / 100 mA
1 A / 10 A (16 A max. 30 s)
METRAHITTECH
10 mA / 100 mA
1 A / 10 A (16 A max. 30 s)
SECULIFEHITAM/MD
5.7.1 Direct and Pulsating Current Measurement, Direct Connection,
A DC and A (DC+AC)
(METRAHIT X-TRA/OUTDOOR/TECH/PRO only)
➭ First disconnect supply power from the measuring circuit or
the power consumer (1), and discharge any capacitors.
➭ In accordance with the current to be measured, turn the rotary
switch to A or A
➭ Select the current type appropriate for the measured quantity
by briefly pressing the FUNC | ENTER multifunction key. Each
time the key is pressed, the instrument is switched back and
forth between A DC and A (DC + AC)
by means of an acoustic signal. The current type is indicated at
the LCD by means of the DC or the (DC+AC)
➭ Safely connect the measuring instrument (without contact
resistance) in series to the power consumer (2) as shown.
➭ Switch supply power to the measuring circuit back on (3).
➭ Read the display. Make a note of the measured value if the
instrument is not being operated in the memory mode or the
transmission mode.
➭ Disconnect supply power from the measuring circuit or the
power consumer (1) once again, and discharge any
capacitors.
➭ Remove the test probes from the measuring point and return
the measuring circuit to its normal condition.
.
TRMS
, which is indicated
symbol.
TRMS
40GMC-I Messtechnik GmbH
5.7.2 Alternating Current and Frequency Measurement,
COM mA A
V
Tem p
~
R
x
~
R
x
1
3
2
A~
Hz
A~
Hz
003.50
A
AC
TRMS
050.10
Hz
AC
8.8.8.8.8
!
I > 10 A
!
I > 16 A
Current measurement
may only be performed
with installed batteries!
Measuring Ranges:
Current
FUNC
ENTER
METRAHITX-TRA/OUTDOOR
METRAHITPRO
1 A / 10 A (16 A max. 30 s)
100 A / 1 mA
10 mA / 100 mA
1 A / 10 A (16 A max. 30 s)
METRAHITT
ECH
10 mA / 100 mA
1 A / 10 A (16 A max. 30 s)
SECULIFEHIT
AM/MD
Direct Connection, A AC and Hz
(METRAHIT X-
➭ First disconnect supply power from the measuring circuit or
the power consumer (1), and discharge any capacitors.
➭ In accordance with the current or frequency to be measured,
➭ Select the desired measured quantity by briefly pressing the
➭ Safely connect the measuring instrument (without contact
➭ Switch supply power to the measuring circuit back on (3).
➭ Read the display. Make a note of the measured value if the
➭ Disconnect supply power from the measuring circuit or the
➭ Remove the test probes from the measuring point and return
turn the rotary switch to A~ or Hz.
FUNC | ENTER multifunction key. Each time the key is pressed,
AC
switching is acknowledged with an acoustic signal.
resistance) in series to the power consumer as shown.
instrument is not being operated in the memory mode or the
transmission mode.
power consumer (1) once again, and discharge any
capacitors.
the measuring circuit to its normal condition.
and Hz are alternately selected, and
TRMS
TRA/OUTDOOR/TECH/PRO/SECULIFEHITAM/MD only)
V/Hz, , Temperature, and A/Hz Measurements
GMC-I Messtechnik GmbH41
V/Hz, , Temperature, and A/Hz Measurements
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
COM
V
Tem p
A
~
R
x
Current
003.50
A
1:1000
A
DC
003.50
A
1:1000
A
DC
AC
TRMS
A
A
FUNC
ENTER
R
i
Ri = 9 M
METRAHITTECH
COM
V
Tem p
V
~
R
x
Hz
Current
R
i
Ri ~ 1 M
METRAHITBASE
mA
METRAHITBASE
METRAHITTECH
V
V
5.7.3 Direct and Pulsating Current Measurement with Clip-On Current Sensor, A DC and A (DC+AC) (METRAHIT T
ECH
and METRAHIT B
ASE
only)
(default setting:
METRAHIT TECH: OFF, METRA HIT BASE: 1:1000)
Transformer Output, Voltage/Current
When a clip-on current sensor is connected to the multimeter
(METRAHIT T
plays appear with the correct value in accordance with the selected transformation factor. The only prerequisite is that the current
sensor is equipped with at least one of the below listed transformation
factors, and that the factor has been previously selected in the following
menu (
Current Clip Setup Menu
Trans. Factors
CL IP
1 mV / 1 mA
1m V / 10 mA
1m V / 100 mA
1 mV / 1 A
ECH: V input, METRAHIT BASE: V input), all current dis-
Cl ip
0FF
), see also chapter 6.4.
... SET rAtE ... CLIP
1nFo
1 / 10/100/1000 / 0ff
Measuring Ranges DMMClip Types
100 mV1 V10 V
1:1
1:10
1:100
1:1000
100.00 mA1.0000 A10.000 AWZ12C
1.0000 A10.000 A100.00 A
10.000 A100.00 A1000.0 A
100.00 A1000.0 A(10000.0 A)
WZ12B, Z201A/B,
METRAFLEX
Z202A/B,
METRAFLEX
Z202A/B, Z203A/B,
WZ12C,
METRAFLEX
Maximum allowable operating voltage is equal to the current
transformer’s nominal voltage. When reading the measured value,
additional error resulting from the clip-on current sensor must also
be taken into consideration.
42GMC-I Messtechnik GmbH
V/Hz, , Temperature, and A/Hz Measurements
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
A~
Hz
003.50
A
AC
TRMS
A~
Hz
1:1000
050.10
Hz
AC
1:1000
FUNC
ENTER
COM
V
Tem p
V
~
R
x
Hz
Current
R
i
Ri ~ 1 M
METRAHITBASE
COM
V
Tem p
A
~
R
x
Current
R
i
Ri = 1 M9 M
METRAHITTECH
mA
METRAHITBASE
METRAHITTECH
V~
Hz
1M
1kHz
V~
Ri = 1 M
Ri = 9 M
5.7.4 Alternating Current Measurement with Clip-On Current Sensor,
A AC and Hz (METRAHIT T
ECH and METRAHIT BASE only)
(default setting:
METRAHIT TECH: OFF, METRA HIT BASE: 1:1000)
Transformer Output, Voltage/Current
When a clip-on current sensor is connected to the multimeter
(METRAHIT T
ECH: V input, METRAHIT BASE: V input), all current dis-
plays appear with the correct value in accordance with the selected transformation factor.
sensor is equipped with at least one of the below listed transformation
factors, and that the factor has been previously selected in the following
Cl ip
0FF
menu (
), see also chapter 6.4.
Current Clip Setup Menu
1nFo
... SETrAtE ... CLIP
1 / 10/100/1000 / 0ff
Trans. Factors
CL IP
1:1
1 mV / 1 mA
1:10
1m V / 10 mA
1:100
1m V / 100 mA
1:1000
1 mV / 1 A
Measuring Ranges DMMClip Types
100 mV1 V10 V
100.00 mA1.0000 A10.000 AWZ12C
1.0000 A10.000 A100.00 A
10.000 A100.00 A1000.0 A
100.00 A1000.0 A(10 000.0 A)
The only prerequisite is that the current
WZ12B, Z201A/B,
METRAFLEX
Z202A/B,
METRAFLEX
Z202A/B, Z203A/B
WZ12C,
METRAFLEX
,
Maximum allowable operating voltage is equal to the current
transformer’s nominal voltage. When reading the measured value,
additional error resulting from the clip-on current sensor must also
be taken into consideration.
GMC-I Messtechnik GmbH43
V/Hz, , Temperature, and A/Hz Measurements
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
COM
V
Tem p
A
~
R
x
Current
003.50
A
1:1000
A
DC
003.50
A
1:1000
A
DC
AC
TRMS
FUNC
ENTER
R
i
Ri 1
METRAHITTECH
mA
A
A
A~
Hz
A~
Hz
003.50
A
AC
TRMS
050.10
Hz
AC
FUNC
ENTER
5.7.5
Direct, Pulsating and Current Measurement
Transformer A DC, A (DC+AC), A AC and Hz (METRAHIT T
Transformer Output, Current/Current
When a clip-on current transformer is connected to the multimeter
(METRAHIT T
correct value in accordance with the selected transformation factor. The only prerequisite is that the current transformer is equip-
ECH: mA/A input), all current displays appear with the
ped with at least one of the below listed transformation factors,
and that the factor has been previously selected in the following
menu
Current Clip Setup Menu
(Cl ip 0FF), see also chapter 6.4.
1nFo ... SET rAtE ... CLIP
1 / 10/100/1000 / 0ff
Trans. Factors
CL IP
1:1
1mA/1mA
1:10
1mA/10mA
1:100
1mA/100mA
1:1000
1 mA/1 A
Measuring Ranges DMMClip Types
100 mA1 A10 A
100,00 mA1,0000 A10,000 A
1,0000 A10,000 A100,00 A
10,000 A100,00 A1000,0 A
100,00 A1000,0 A(10 000,0 A)
with Clip-On Current
WZ12A, WZ12D,
WZ11A, Z3511,
Z3512, Z3514
ECH only)
(default setting: METRAHIT TECH: OFF)
44GMC-I Messtechnik GmbH
V/Hz, , Temperature, and A/Hz Measurements
GMC-I Messtechnik GmbH45
Device and Measuring Parameters
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
6Device and Measuring Parameters
The instrument’s “SET ” mode (menu mode) makes it possible to
set operating and measuring parameters, query information and
activate the interface.
➭ The menu mode is accessed by pressing the MEASURE | SETUP
key, assuming that the instrument is switched on and set to
“Measure” (measuring mode operation).
“1nFo ” appears at the display.
➭ The main menus, i.e. the “SET ” and “tEMP ” menus, as well as
the “SEnd ” and “StorE ” menus included with the
METRAHIT X-
the display is returned to “1nFo” by activating the
(in any direction).
➭ After selecting the desired main menu, sub-menus are
accessed by pressing the FUNC | ENTER key.
➭ The desired parameter is selected by repeatedly pressing the
or key.
➭ In order to check or change a parameter, acknowledge it with
the FUNC | ENTER key.
➭ The
position.
The desired value is selected with the help of the
➭ Changes can only be accepted with the FUNC | ENTER key.
➭ You can return to the sub-menu without making any changes
by pushing the ZERO | ESC key, and to the main menu by pressing the same key once again etc.
➭ You can switch to the measuring mode from any menu level by
pressing the FUNC | ENTER key.
TRA/OUTDOOR/SECULIFEHITAM/MD, are accessed, and
keys
keys can be used to position the cursor at the entry
keys.
After repeatedly pressing the MEASURE | SETUP key (without first
turning the multimeter off), you can return to the last selected
menu or parameter from the measuring mode.
Example: Setting Time
... setrAte ... t iME
1nFo
10:24 (hh:mm)
Setting hours and minutes:
Change the setting, the entry position blinks.
Advance to desired entry position.
Press and hold the key
to change the setting rapidly.
The new time setting is activated after
acknowledgement.
46GMC-I Messtechnik GmbH
6.1 Paths to the Various Parameters 6.2 List of All Parameters
bAtt:
VerSion
:
1tEMP:
dAtE:
t iME:
0CCvP: *
1nFo
tEMPSEnd
*SET StorE *
*
METRAHIT X-
TRA/OUTDOOR
/
SECULIFEHITAM/MD only
** METRA HIT BASE only
StArt
StoP
000.0
CLEAr
StArt/
StoP
Sub-Menus / Parameters
rAtE *
0.diSP
A
.diSP
APoFF
bEEP
irStb
*
Addr *
dAtE
tiME
CLiP **
C
F
Main Menus
QuerySetSetSetSet
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
1nfo
MEASURE
SETUP
020.00
V
DC
AC
TRMS
Selection
FUNC
ENTER
Selection
FUNC
ENTER
Selection
FUNC
ENTER
Selection
FUNC
ENTER
GMC-I Messtechnik GmbH47
Device and Measuring Parameters
Parameter X
0.diSP48: 0.diSP – show/hide leading zeros
Addr
A.diSP49: A.diSP – analog display: select display mode
APoFF
bAtt
bEEP
CLEAr
CLIP
dAtE
EMpty
1nfo
irStb
1tEMP
0CCvP
rAtE
SEnd
SET
StArt
StoP
store
tEMP
t iME
vErSion
TRATECHPROBASE
———
———
——
———
———
———
———
———
———
———
———
Page: Header
53: Configuring Interface Parameters
49: APoFF – specified time for automatic shutdown
and continuous ON
48: bAtt – query battery voltage
49: bEEP – set the limit value for continuity testing
23: Measurement Data Recording (METRAHIT X-
TRA/OUTDOOR and SECULIFEHITAM/MD only)
42:
Direct and Pulsating Current Measurement with
Clip-On Current Sensor, A DC and A (DC+AC)
METRAHIT T
(
48: dAtE – query date, 50: dAtE – enter date
23: Measurement Data Recording (METRAHIT X-
TRA/OUTDOOR and SECULIFEHITAM/MD only)
48: Querying Parameters – InFo Menu (as moving letters)
53: Configuring Interface Parameters
48: ItEMP – query reference temperature
23: Measurement Data Recording (
and
48: rAtE – set the sampling rate (HIT
HIT
52: Activating the Interface
48: Entering Parameters – SETUP Menu
23: Measurement Data Recording (METRAHIT X-
TRA/OUTDOOR and SECULIFEHITAM/MD only)
36: Temperature Measurement
48: tiME – query time, 50: tiME – set time
48: vErSion – query firmware version
ECH AND
METRAHIT B
SECULIFEHITAM/MD only)
AM/MD
only)
ASE ONLY
METRAHIT X-
X-
TRA/OUTDOOR
)
TRA/OUTDOOR
/
Device and Measuring Parameters
MEASURE
SETUP
FUNC
ENTER
MEASURE
SETUP
FUNC
ENTER
MEASURE
SETUP
FUNC
ENTER
MEASURE
SETUP
FUNC
ENTER
MEASURE
SETUP
FUNC
ENTER
MEASURE
SETUP
FUNC
ENTER
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
6.3 Querying Parameters – InFo Menu (as moving letters)
bAtt – query battery voltage
:
1nFobAtt
2.75 V.
vErSion – query firmware version
1nFobAtt: vErSion: 2.09
ItEMP – query reference temperature
The temperature of the internal reference junction is measured with a
temperature sensor in close proximity to the input sockets.
1nFo bAtt: ...
1tEMP: 24 °
C
dAtE – query date
1nFobAtt: ...
D = day, M = month, Y = year
dAtE: 31.12.
05 (DD.MM.YY)
Date and time must be reentered after replacing the batteries.
tiME – query time
1nFo bAtt
t iME: 13:46:
56
:
...
(hh:mm:ss)
h = hours, m = minutes, s = seconds
Date and time must be reentered after replacing the batteries.
OCCUP – query memory occupancy (METRA HIT X-
1nFobAtt: ...
TRA/OUTDOOR
0CCUP:
000.0
/HITAM/MD only)
%
6.4 Entering Parameters – SETUP Menu
rAtE – set the sampling rate (HIT X-TRA/OUTDOOR/HITAM/MD only)
The sampling rate specifies the time interval after which the
respective measured value is transmitted to the interface, or to
measured value memory.
Any one of the following sampling rates can be selected:
00:00.1, 00:00.2, 00:00.5, 00:01.0, 00:02.0, 00:05.0
[h:mm:ss.t] (h = hours, m = minutes, s = sec.,
This parameter determines whether or not leading zeros will
appear in the measured value display.
1nFo
...
SET rAtE ... 0.diSP
0000.0 : with leading zeros (default setting)
0.0 : leading zeros suppressed
)
48GMC-I Messtechnik GmbH
Device and Measuring Parameters
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
A.diSP – analog display: select display mode
One of two different display modes can be selected for the
analog display:
• bArG: bar graph
• Point: pointer
... SETrAtE ... A.diSP
1nFo
bArG / Point
(bArG = default value)
APoFF – specified time for automatic shutdown and continuous ON
The instrument is switched off automatically if the measured value
remains unchanged for a long period of time, and if none of the
keys or the rotary switch have been activated before the specified
time “APoFF ” (entered in minutes) has elapsed.
If the on setting is selected, the multimeter is set to continuous
operation and
ON appears in the display to the right of the battery
symbol. In this case, the multimeter can only be switched off
manually. The “on ” setting can only be cancelled by changing the
respective parameter, and not by switching the instrument off.
... SETrAtE ... APoFF
1nFo
bEEP – set the limit value for continuity testing
1nFo
... SETrAtE ... bEEP
1, 10, 20, 30, 40, 90
(10 = default setting)
irStb – status of the infrared receiver in the stand-by mode
(METRAHIT X-
Entering the current date makes it possible to acquire measured
values in real-time.
... SETrAtE ... dAtE
1nFo
31.12 (DD: day . MM: month)
2005 (YYYY: year)
Date and time must be reentered after replacing the batteries.
tiME – set time
Entering the correct time makes it possible to acquire measured
values in real-time.
1nFo ... SETrAtE ... tiME
10:24(hh:mm)
Date and time must be reentered after replacing the batteries.
CLIP – set transformation factor (METRAHIT BASE only)
See chapter 5.7.3 ff.
6.5 Default Settings
Previously entered changes can be undone, and the default
settings can be reactivated. This may be advisable under the
following circumstances:
• After the occurrence of software or hardware errors
• If you are under the impression that the multimeter does not
work correctly
➭ Disconnect the device from the measuring circuit.
➭ Remove the batteries temporarily (see also chapter 9.2).
➭ Simultaneously press and hold
the and keys,
and reinsert the batteries at the same time.
50GMC-I Messtechnik GmbH
Device and Measuring Parameters
GMC-I Messtechnik GmbH51
Interface Operation
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
7Interface Operation (METRAHIT X-TRA/OUTDOOR/
SECULIFEHIT
The METRAHIT X-TRA/OUTDOOR is equipped with an infrared interface
for the transmission of measurement data to a PC. Measured data
are optically transferred through the instrument housing by means
of infrared light to an interface adapter (accessory), which is
attached to the multimeter. The adapter’s USB interface allows for
the establishment of a connection to the PC via an interface cable.
Beyond this, commands and parameters can be transmitted from
the PC to the multimeter as well. The following functions can be
executed:
• Configuration and read-out of measuring parameters
• Measuring function and measuring range selection
• Start measurements
• Read out stored measured values
7.1 Activating the Interface
The interface is automatically activated for receiving operation
(multimeter receives data from the PC) as soon as the interface is
addressed by the PC, assuming that the “irStb ” parameter has
been set to “ir on ” (see chapter 7.2), or the instrument is already
switched on (the first command wakes up the multimeter, but
does not yet execute any further commands).
The “continuous transmission” operating mode is selected
manually as described below. In this operating mode, the
instrument continuously transmits measurement data to the PC
via the interface adapter, which can then be displayed with the
help of a terminal program.
AM/MD only)
Starting Continuous Transmission Operation with Menu Functions
... SEndStArtsend
1nFo
The symbol blinks at the display in order to indicate interface
operation.
Stopping Continuous Transmission Operation with Menu Functions
1nFo
... SEndsend
stop send
The symbol is cleared from the display.
Automatic Activation and Deactivation of Transmission Mode Operation
If the sampling rate is 10 seconds or longer, the display is
switched off automatically between samples in order to prolong
battery service life. The only exception is when the multimeter is
set to continuous operation.
As soon as an event occurs, the display is automatically switched
back on.
52GMC-I Messtechnik GmbH
Interface Operation
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
7.2 Configuring Interface Parameters
irStb – status of the infrared receiver in the stand-by mode
There are two possible switching statuses for the infrared
interface when the multimeter is switched off:
ir on: IR appears at the display and the infrared interface is
active, i.e. signals such as making commands can be
received, and power is consumed even though the
multimeter is switched off.
ir oFF:IR does not appear at the display and the infrared
interface is switched off, signals cannot be received.
... SET rAtE ... irStb
1nFo
ir on / ir oFF
(irstb = ir oFF = default setting)
Addr – Address
If several multimeters are connected to the PC via an interface
adapter, a separate address can be assigned to each instrument.
Address number 1 should be selected for the first instrument, 2
should be assigned to the second and so forth.
Residual value deviates within 1 ... 30 d from the zero point due to TRMS converter
when probe tips are short-circuited. See frequency influence on page 56.
5)
Switch-off time/Cool-down time > 30 min and TA 40 C
4)
~
4)
~
(1% rdg. + 30 d)
> 300 d
4)
4)
ECH)
(1% rdg. + 30 d)
> 300 d
Overload Capacity
ValueTime
1)
1000 V
DC
AC
RMS
sine
0.2 A
10 A: 5 min
16 A: 30 s
0.2 A
10 A: 5 min
16 A: 30 s
Measuring input
10 A: 5 min
Measurement input
1000 V RMS Max. 10 s
1000 V
DC
AC
RMS
sine
continuous
continuous
5)
5)
continuous
5)
5)
Max. 10 s
2)
Technical Data
Meas.
Function
Measuring Range
Resolution at Upper
Range Limit
11,9991199~ / ValueTime
Input impedance
Discharge resistanceU
F
TRA
X-
OUTDOOR
TECH
AM/MD
Hz (V)
Hz (A)
Hz (A)
Hz (V)
Hz (A)
MHz
TRA
X-
OUTDOOR
%
TRA
X-
OUTDOOR
C/F
2)
At 0 ... + 40 C
6)
Applies to measurements at film capacitors
7)
Lowest measurable frequency for sinusoidal measuring signals symmetrical to the zero point
8)
Overload capacity of the voltage measurement input:
power limiting: frequency x voltage, max. 3 x 10
10 nF10 pF10 M0.7V1 + 6
100 nF100 pF1 M0.7V1 + 6
1 F1 nF100 k0.7V1 + 6
10 F10nF12k0.7V1 + 6
100 F100 nF3 k0.7V5 + 6
1000 F1F3k0.7V5 + 6
100.00 Hz0.01 Hz
1.0000 kHz0.1 Hz
10.000 kHz1 Hz
100.00 kHz10 Hz10 Hz
30.00 kHz10 Hz10 Hz
100 Hz ... 1 MHz
0.01 ...
100 Hz
2.0 ... 98%—0.01% 100 Hz ... 1 kHz1 Hz0.1 R per kHz> 2 V ... 5 V
5.0 ... 95%—0.01% ... 10 kHz1 Hz0.1 R per kHz> 2 V ... 5 V
10... 90%—0.01%... 100 kHz1 Hz0.1 R per kHz> 2 V ... 5 V
Pt100
– 200.0 ...
X-TRA
+850.0 C
OUTD.
Pt1000
X-TRA
OUTD.
K
(NiCr-Ni)
– 150.0 ...
+850.0 C
– 250.0 ...
+1372.0 C
0.1 C
6
V x Hz for U > 100 V
Intrinsic Error under Reference Conditions
0 max
7)
f
min
1Hz
(... % rdg. + ... d)
(... % rdg. + ... d)
10)
0.05 + 3
6)
with ZERO function active
6)
6)
6)
6)
6)
1 ... 100 Hz0.05 + 3> 2 V ... 5 V
(... % rdg. + ... d)
11)
0.3 + 15
11)
0.3 + 15
11)
1% + 5 K
9)
Overload capacity of the current measurement input:
See current measuring ranges for maximum current values.
10)
Input sensitivity, sinusoidal signal, 10% to 100% of the measuring range
11)
Plus sensor deviation
Key: R = meas. range, d = digit(s), rdg. = measured value (reading)
Time formatTT.MM.JJJJ hh:mm:ss
Resolution0.1 s
Accuracy1 minute per month
Temperature
influence50 ppm/K
GMC-I Messtechnik GmbH57
Technical Data
Data Interface (METRAHIT X-TRA/OUTDOOR/SECULIFEHITAM/MD only)
TypeOptical via infrared light through the
Data transmission
(data transfer)Serial, bidirectional (not IrDa compatible)
ProtocolDevice specific
Baud Rate38,400 baud
Functions– Select/query measuring functions and
The USB X-TRA plug-in interface adapter (see accessories) is
used for adaptation to the PC’s USB port.
housing
parameters
–
Query/transmit momentary measurement
data
– Read out stored measurement data
Internal Measured Value Storage
(METRAHIT X-
Memory capacity4 MBit / 540 kB for approx. 15,400
TRA/OUTDOOR/SECULIFEHITAM/MD only)
measured values with time stamp
Power Supply
Battery2 ea. 1.5 V mignon cell (2 ea. size AA),
Service lifeWith alkaline manganese: approx. 200
Battery testBattery capacity display with battery
Power OFF functionThe multimeter is switched off
Power pack connector socket
(METRAHIT X-
TRA/OUTDOOR/SECULIFEHITAM/MD only)
alkaline manganese per IEC LR6
(2 ea. 1.2 V NiMH rechargeable battery
also possible)
hours
symbol in 4 segments: .
Querying of momentary battery voltage via
menu function.
automatically:
– If battery voltage drops to below approx.
1.8 V
– If none of the keys or the rotary switch
are activated for an adjustable duration
(10 to 59 min.), and the multimeter is not
in the continuous operating mode
If the NA X-TRA power pack (see
accessories) has been plugged into the
instrument, the batteries are disconnected
automatically.
Rechargeable batteries can only be
recharged externally.
58GMC-I Messtechnik GmbH
Technical Data
Display
LCD panel (65 mm x 36 mm) with analog and digital display
including unit of measure, type of current and various special
functions
Background illumination
Background illumination is switched off approximately 1 minute
after it has been activated.
Analog
DisplayLCD scale with bar graph or pointer,
ScalingWith 4 division lines each
Polarity displayWith automatic switching
Overflow displayWith the symbol
Measuring rate40 per second and display refresh
Digital
Display / Char. Height
Number of places 4½ place11,999 steps
Overflow display“0L” is displayed for 12,000 digits
Polarity display“–” (minus sign) is displayed
Measuring rate10 measurements per second;
Refresh Rate2 times per sec., every 500 ms
depending upon A.diSP parameter setting
1 bar/pointer corresponds to 500 digits at
the digital display
(U and I)
7-segment characters / 15 mm
if plus pole is connected to “”
40 per second with Min/Max function
except with capacitance, frequency and
duty cycle measuring functions
Acoustic Signals
For voltageIntermittent signal at above 1000 V
For currentIntermittent signal at above 10 A
Continuous signal at above 16 A
Fuse for METRAHIT X-TRA/OUTDOOR/TECH/PRO/SECULIFEHITAM/MD
FuseFF (UR) 10 A/1000 V AC/DC,
10 x 38 mm,
switching capacity:
30 kA at 1000 V AC/DC,
protects the current input socket in the
100 A to 10 A ranges
Electrical Safety
per IEC 61010-1:2010/DIN EN 61010-1:2011/VDE 0411-1:2011
Safety class
Fouling factor
Test v o lt age
II
2
6.7 kV~
METRAHIT X-TRA/OUTDOOR/TECH/PRO/BASE
Measuring categoryII IIV
Operating voltage1000 V600 V
SECULIFEHIT
Measuring categoryII IIV
Operating voltage600 V300 V
AM/MD
GMC-I Messtechnik GmbH59
Technical Data
Electromagnetic Compatibility (EMC)
Interference emission
Interference immunity
EN 61326-1:2013, class B
EN 61326-1:2013
EN 61326-2-1:2013
Disconnect the instrument from the measuring circuit before
opening the battery compartment lid or fuse cover in order
to replace batteries or fuses!
9.1 Displays – Error Messages
MessageFunctionMeaning
FUSE
0L
9.2 Batteries
Current measurement Blown fuse
In all operating modes Battery voltage has fallen below 1.8 V
MeasurementIndicates overflow
Removing the Batteries During Periods of Non-Use
The integrated quartz movement draws power from the
batteries even when the instrument is switched off. It is
advisable to remove the batteries during long periods of
non-use for this reason (e.g. vacation). This prevents
excessive depletion of the battery, which may result in
damage under unfavorable conditions.
ware before replacing the batteries.
The selected operating parameters remain in memory,
although date and time must be reentered.
Battery
The current battery charge level can be queried in the “1nfo”
menu:
:
1nFobAtt
2.75 V.
Make sure that no battery leakage has occurred before initial
start-up, as well as 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.
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 two 1.5 V batteries in accordance with
IEC R 6 or IEC LR 6, or two equivalent rechargeable NiCd
batteries.
Battery Replacement for METRAHIT X-TRA/OUTDOOR/
SECULIFEHITAM/MD
Stored measurement data are lost when the batteries are
replaced. In order to prevent data loss, it is advisable to
backup your data to a PC with the help of METRAwin 10 soft-
62GMC-I Messtechnik GmbH
Maintenance – Calibration
Attention!
!
Attention!
!
Blown Fuse
fuse
A
DC
Replacing the Batteries
Disconnect the instrument from the measuring circuit before
opening the battery compartment lid in order to replace the
batteries.
➭ Set the instrument face down onto the working surface.
➭ Turn the slotted screw on the lid with the battery symbols
counterclockwise.
➭ Lift off the lid and remove the batteries from the battery
compartment.
➭ Insert two new 1.5 V mignon batteries into the battery
compartment, making sure that the plus and minus poles
match up with the provided polarity symbols.
➭ When replacing the battery compartment lid, insert the side
with the guide hooks first.
Tighten the screw by turning it clockwise.
➭ Please dispose of depleted batteries in accordance with
environmental protection regulations!
9.3Fuse (METRAHIT XSECULIFEHIT
Testing the Fuse
The fuse is tested automatically:
• When the instrument is switched on with the rotary switch in
the A position
• When the instrument is already on and the rotary switch is
turned to the A position
GMC-I Messtechnik GmbH63
AM/MD
TRA/OUTDOOR
only)
, METRAHIT T
ECH
, METRAHIT PRO and
• In the active current measuring range when voltage is applied
If the fuse is blown or has not been inserted, “FuSE” appears at
the digital display. The fuse interrupts the current measuring
ranges. All other measuring ranges remain functional.
Replacing the Fuse
If a fuse should blow, eliminate the cause of overload before
placing the instrument back into service!
Disconnect the instrument from the measuring circuit before
opening the fuse cover in order to replace the fuse!
➭ Set the instrument face down onto the working surface.
➭ Turn the slotted screw on the cover with the fuse symbol
counterclockwise.
➭ Lift off the cover and pry the fuse out using the flat side of the
fuse cover.
➭ Insert a new fuse. Make sure that the fuse is centered, i.e.
between the tabs at the sides.
➭ When replacing the fuse cover, insert the side with the guide
hooks first.
Tighten the screw by turning it clockwise.
➭ Dispose of the blown fuse with the trash.
Maintenance – Calibration
Attention!
!
Note
Pb Cd Hg
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.
Testing the Fuse with the Instrument Switched On
After inserting the fuse with the instrument switched on, the
instrument must be switched off briefly and then switched
back on, or briefly switched to a non-current measuring
range and then back to the “A” measuring range.
If contact is poor or the fuse is blown, FUSE appears at the
display.
9.4 Housing Maintenance
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 or solvents.
9.5 Return and Environmentally Sound 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 at 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 (see page 4).
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.
64GMC-I Messtechnik GmbH
Maintenance – Calibration
9.6 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.
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 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).
By having your measuring instrument calibrated regularly, you fulfill the requirements of a quality management system per
DIN EN ISO 9001.
9.7 Manufacturer’s Guarantee
All METRA HIT digital multimeters and calibration instruments are
guaranteed for a period of 3 years after date of shipment. The
manufacturer’s 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.
The calibration certificate confirms that the product conformed to
the specified technical data at the time of calibration. We guarantee the observance of the specified technical data within the admissible tolerance limits for a period of 12 months from delivery.
* 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.
GMC-I Messtechnik GmbH65
Accessories
Attention!
!
10Accessories
10.1 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
Multimeters METRAHIT ... Accessories).
10.2 Technical Data for Measurement Cables
Electrical Safety of KS17-2 safety cable set
1000 V
600 V
1000 V
—
600 V
—
Maximum Rated Voltage600 V
Measuring Category
CAT IVCAT III CAT II
Maximum Rated Current 1 A1 A16 A
with safety cap applied
without safety cap applied——
Please observe the maximum values of the electrical safety of the instrument.
Electrical Safety of KS17-2AMB safety cable set
(with antimicrobial properties, supply only with SECULIFEHITAM)
Maximum Rated Voltage300 V
Measuring Category
CAT IVCAT III CAT II
Maximum Rated Current 1 A1 A16 A
with safety cap applied
without safety cap applied——
Please observe the maximum values of the electrical safety of the instrument.
Ambient Conditions (EN 61010-031)
Tem pe ra tu re– 20 C ... + 50C
Relative humidity50 to 80%
Pollution degree2
Application KS17-2/KS17-2AMB
Please observe the maximum values of the electrical supply
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).
10.3 NA X-TRA Power Pack (not included)
Use only the power pack from GMC-I Messtechnik GmbH in
combination with your instrument. This assures operator safety by
means of an extremely well insulated cable, and safe electrical
isolation (nominal secondary ratings: 5 V / 600 mA). Installed
batteries are disconnected electronically if the power pack is
used, and need not be removed from the instrument.
66GMC-I Messtechnik GmbH
10.4
Interface Accessories for METRAHIT XSECULIFEHIT
AM/MD
(not included)
TRA/OUTDOOR
and
USB X-TRA Bidirectional Interface Adapter
This adapter makes it possible to connect STARLINE multimeters
which are equipped with a serial IR interface to the USB port at a
PC. The adapter allows for data transmission
between the multimeter and the PC.
METRAwin 10 PC Analysis Software
METRAwin 10 PC software is a multilingual, measurement data log-
ging program* for recording, visualizing, evaluating and
documenting measured values from METRA HIT multimeters.
Details on the system requirements are given in the installation
instructions of METRAwin 10/METRAwin 45.
Accessories
* runs under any IBM compatible Windows operating system