Gossen Metrawatt M243A User guide

Operating Instructions
SECULIFEHITAM HITMD
METRAHIT X-TRA OUTDOOR TECH PRO BASE
TRMS Digital Multimeter
3-349-352-03
13/5.17
Standard Equipment Contact Persons
1kHz
1kHz
1kHz
1kHz
1kHz
1kHz
1kHz
1kHz
1multimeter 1 measurement cable set 2 batteries 1 abbreviated operating instructions – Detailed operating instructions for download from our website
at www.gossenmetrawatt.com
1 DAkkS calibration certificate
Function SECULIFE
V AC / Hz TRMS (Ri 9 M)
V AC TRMS (Ri = 1 M)
V AC+DC TRMS (Ri 9 M)
V DC ( 9 M)  ... 1 MHz 5 V AC ———
HITAM/HIT
M687A/M687B M240A/M240O
&Filter&Filter& Filter&Filter
&Filter&Filter& Filter&Filter
Duty cycle as % ———
Hz (V AC) ... 100 kHz ... 100 kHz ... 100 kHz ... 100 kHz ... 100 kHz
Bandwidth V AC
A AC / Hz TRMS
A AC+DC TRMS
A DC
15 Hz ... 20 kHz 15 Hz ... 20 kHz 15 Hz ... 10 kHz 15 Hz ... 10 kHz
100 A
1/10/100 mA
1 A / 10 (16)
Fuse 10 A/1000 V 10 A/1000 V 10 A/1000 V 10 A/1000 V Transformation
factor
A AC / Hz TRMS
A AC+DC TRM
S
METRAHIT X-
TRA
MD
OUTDOOR

100 A
1/10/100 mA 1 A / 10 (16)
A
——
——
——
METRAHIT
/
T
ECH
M243A M242A M241A
10/100 mA
1 A / 10 (16)
A
A
mV/A mA/A
mV/A mA/A
METRAHIT P
RO
1 A / 10 (16)
A
METRA HIT
B
ASE
15 Hz ... 1 kHz
mV/A
Ri = 1 M
mV/A
Ri = 1 M
Function SECULIFE
A DC
Hz (A AC) ... 30 kHz ... 30 kHz ... 30 kHz ... 30 kHz ... 30 kHz
HITAM/HIT
M687A/M687B M240A/M240O
METRAHIT X-
TRA
MD
OUTDOOR
——
METRAHIT
/
T
ECH
M243A M242A M241A
mV/A mA/A
METRAHIT P
RO
METRA HIT
B
ASE
mV/A
Ri = 1 M
Resistance  Continuity 
Diode ... 5,1 V  Temperature TC (K) 
Temperature RTD
———
Capacitance ——
MIN/MAX/data hold 
4 MBit memory
1)
———
IR Interface ——— Power pack
adapter socket Protection
Antimicrobial properties
Measuring category 600 V CAT III
Rubber holster ———
Measurement cable set
DAkkS calibr. certificate Hygiene Expertise — / ————
1)
For 15,400 measured values, sampling rate adjustable from 0.1 second to 9 hours
———
IP65
/ —————
300 V CAT IV
KS17-2AMB/
KS17-2
X-TRA: IP52
OUTDOOR: IP65
1000 V CAT II I
600 V CAT IV
KS17-2 KS17-2 KS17-2 KS17-2

IP52 IP52 IP52
1000 V CAT II I
600 V CAT IV
1000 V CAT II I
600 V CAT IV
1000 V CAT II I
600 V CAT IV
2 GMC-I Messtechnik GmbH
Contact Persons
Accessories (sensors, plug inserts, adapters, consumable materials)
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
See also chapter 10 on page 66.
Product Support
Technical Queries (use, operation, software registration)
If required please contact:
GMC-I Messtechnik GmbH
Product Support Hotline
Phone: +49 911 8602-0 Fax: +49 911 8602-709 e-mail support@gossenmetrawatt.com
Software Enabling for METRAwin 10
GMC-I Messtechnik GmbH
Front Office
Phone: +49 911 8602-111 Fax: +49 911 8602-777 e-mail: info@gossenmetrawatt.com
GMC-I Messtechnik GmbH 3
Standard Equipment Contact Persons
Recalibration Service
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
4 GMC-I Messtechnik GmbH
Contact Persons
GMC-I Messtechnik GmbH 5
Table of Contents
Contents Page Contents Page
1 Safety Features and Precautions ....................................... 8
1.1 Use for Intended Purpose ................................................................10
1.2 Meanings of Danger Symbols ..........................................................10
1.3 Meanings of Acoustic Warning Signals ............................................10
2
Operating Overview – Connections, Keys, Rotary Switch, Symbols . 12
3 Initial Start-Up .................................................................. 16
3.1 Inserting Batteries or Rechargeable Batteries ...................................16
3.2 Activation .......................................................................................16
3.3 Setting the Operating Parameters ....................................................16
3.4 Switching the Instrument Off ...........................................................17
4 Control Functions ............................................................. 18
4.1 Selecting Measuring Functions and Measuring Ranges .....................18
4.1.1 Automatic Range Selection .............................................................18
4.1.2 Manual Measuring Range Selection .................................................18
4.1.3 Quick Measurements ......................................................................19
4.2 Zero Offset / Relative Measurements ...............................................19
4.3 Display (LCD) .................................................................................20
4.3.1 Digital Display ................................................................................20
4.3.2 Analog Display ...............................................................................20
4.4 Measured Value Storage: DATA (auto-hold / compare) ......................21
4.4.1 Saving Minimum and Maximum Values – MIN/MAX Function ............22
4.5 Measurement Data Recording (METRAHIT X-
SECULIFEHITAM/MD only) ...............................................................23
TRA/OUTDOOR and
5 Measurements ................................................................. 26
5.1 Voltage Measurement ....................................................................26
5.1.1 Direct and Pulsating Voltage Measurement, V DC and V (DC+AC) ..... 27
5.1.2 Alternating Voltage Measurement with 1 M and Frequency Measurement with Selectable Low-Pass Filter (METRAHIT X-
TRA/OUTDOOR/TECH/PRO/SECULIFEHITAM/MD only) ...... 28
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) ...... 30
5.1.4 Frequency and Duty Cycle Measurements (METRAHIT X-
TRA/OUTDOOR/SECULIFEHITAM/MD only) ..................... 32
5.2 Resistance Measurement, 
5.3 Continuity Test .............................................................................. 34
5.4 Diode Testing with a Constant Current of 1 mA ...............................35
5.5 Temperature Measurement ............................................................36
5.5.1 Measurement with Thermocouples, Temp TC ..................................36
5.5.2 Measurement with Resistance Thermometers (METRAHIT X-
TRA/OUTDOOR/SECULIFEHITAM/MD only) ..................... 37
5.6 Capacitance Measurement (
METRAHIT X-TRA/OUTDOOR/SECULIFEHITAM/MD
only) .......................................................................................................... 38
5.7 Current Measurement ....................................................................39
5.7.1 Direct and Pulsating Current Measurement, Direct Connection, A DC and A (DC+AC) (METRAHIT X-
TRA/OUTDOOR/TECH/PRO only) .....................................40
5.7.2 Alternating Current and Frequency Measurement, Direct Connection, A AC and Hz (METRAHIT X-
5.7.3
Direct and Pulsating Current Measurement with Clip-On Current Sensor, A DC and A (DC+AC) (
TRA/OUTDOOR/TECH/PRO/SECULIFEHITAM/MD only) ...... 41
METRAHIT TECH
Load Resistance
W
and
METRAHIT BASE
and
METRAHIT TECH
only) ..... 42
6 GMC-I Messtechnik GmbH
Table of Contents
Contents Page Contents Page
5.7.4 Alternating Current Measurement with Clip-On Current Sensor,
A AC and Hz (METRAHIT T Direct, Pulsating and Current Measurement
5.7.5
Transformer A DC, A (DC+AC), A AC and Hz (METRAHIT T
ECH and METRAHIT BASE only) ...............43
with Clip-On Current
ECH only) . 44
6 Device and Measuring Parameters ................................... 46
6.1 Paths to the Various Parameters .................................................... 47
6.2 List of All Parameters .................................................................... 47
6.3 Querying Parameters – InFo Menu (as moving letters) ...................... 48
6.4 Entering Parameters – SETUP Menu ............................................... 48
6.5 Default Settings ............................................................................. 50
7 Interface Operation (METRA HIT X-TRA/OUTDOOR/
SECULIFEHIT
7.1 Activating the Interface ................................................................... 52
7.2 Configuring Interface Parameters .................................................... 53
AM/MD only) ................................................... 52
8 Technical Data ................................................................54
9 Maintenance and Calibration ............................................ 62
9.1 Displays – Error Messages ............................................................ 62
9.2 Batteries ....................................................................................... 62
9.3
Fuse (
METRAHIT X-TRA/OUTDOOR, METRAHIT TECH, METRAHIT PRO
SECULIFEHITAM/MD
and
9.4 Housing Maintenance .................................................................... 64
9.5 Return and Environmentally Sound Disposal ....................................64
9.6 Recalibration ................................................................................. 65
9.7 Manufacturer’s Guarantee .............................................................. 65
only) .............................................................63
10 Accessories ....................................................................... 66
10.1 General ......................................................................................... 66
10.2 Technical Data for Measurement Cables ......................................... 66
10.3 NA X-TRA Power Pack (not included) .............................................. 66
Interface Accessories for
10.4
SECULIFEHITAM/MD
METRAHIT X-TRA/OUTDOOR
(not included) ..................................................... 67
and
11 Index ................................................................................. 68
GMC-I Messtechnik GmbH 7
Safety Precautions

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 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
CAT Definition
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:
IV
meters, mains terminals, primary overvoltage protection devices
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.
8 GMC-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 GmbH 9
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)
10 GMC-I Messtechnik GmbH
Safety Precautions
GMC-I Messtechnik GmbH 11

Operating Overview – Connections, Keys, Rotary Switch, Symbols

* METRA HIT BASE: Current measurement by means of clip-on current sensor with
voltage output only
1
3
4
16
5
6
9
*
*

chapter 4.3
chapter 3 chapter 5
chapter 7
chapter 6

chapter 3
ff.
chapter 3
14
12

chapter 4.1
10
2

chapter 4.1.2
15
8
12
15
chapter 4.1
chapter 4.4
chapter 6
chapter 3
chapter 3.1
7

chapter 1.2
chapter 6
max. 1000 V ! / SECULIFE HITAM & MD: max. 600 V !
2
Operating Overview – Connections, Keys, Rotary Switch, Symbols
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)
12 GMC-I Messtechnik GmbH
and
Symbols Used in the Digital Display 1 Battery level indicator
1 2910
12
14
15
15 16
20 17
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)
Battery level indicator
Interface indicator
Operating Overview – Connections, Keys, Rotary Switch, Symbols
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/MD only
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
GMC-I Messtechnik GmbH 13
Operating Overview – Connections, Keys, Rotary Switch, Symbols
1kHz
1kHz
1kHz
1kHz
V
ACDCVAC
2
V
DC
2
+=
A
AAA
Symbols of Rotary Switch Positions
Switch
V~ 0/4 V~ AC TRMS Alternating voltage, TRMS AC, full bandwidth  Hz (V) 1 Hz ~ AC Voltage frequency, full bandwidth  V~ 2 V Fil ~ AC TRMS Alternating voltage, TRMS AC, with low-pass (1 kHz)  Hz (V) 3 Hz Fil ~ AC Voltage frequency, with low-pass (1 kHz)  V~ 1 M V~ 1 V Fil ~ AC TRMS Alternating voltage, TRMS AC, up to 1 kHz, input 1 M Hz (V) 2 Hz Fil ~ AC Voltage frequency, up to 1 kHz, input 1 M Hz (V) 1 M V 0/2 V DC Direct voltage  V 1 V DC AC TRMS Pulsating voltage, TRMS ( )  MHz 0/2 MHz (High) frequency @ 5 V~ ——— % 1 % Duty cycle @ 5 V~ ———
Temp TC 0/2 Temp RT D 1 C Pt100/1000 Temperature with resistance thermometer Pt100/Pt1000 ———
A 0/2 A DC Direct current value  A 1 A DC AC TRMS Pulsating current value, TRMS AC DC  A~ 0/2 A~ AC TRMS Alternating current value, TRMS AC  Hz (A) 1 Hz ~ AC Current frequency 
Hz ( ) 1 Hz ~ AC Current frequency
FUNC
Display Measuring Function
METRAHIT X-
UTDOOR
O
SECULIFEHIT
AM/MD
TRA
METRAHIT T
ECH
METRAHIT PROMETRAHIT B
ASE
0/4 V~ AC TRMS Alternating voltage, TRMS AC, full bandwidth, input 1 M
3 Hz ~ AC Voltage frequency, full bandwidth, input 1 M
(Direct current) resistance  0/2 Continuity testing with acoustic signal 
1
— nF Capacitance ——
0/2 A DC Direct current value with AC DC clip-on current sensor 1 V:1/10/100/
1 A DC AC TRMS
0/2 A~ AC TRMS
V DC Diode voltage 
C Typ-K
Temperature thermocouple Type K 
1000 A Pulsating current value, TRMS, with AC DC clip-on current sensor, see above
Alternating current strength, TRMS, with clip-on current sensor, see above
14 GMC-I Messtechnik GmbH
Operating Overview – Connections, Keys, Rotary Switch, Symbols
!
5 V / 600 mA
Serial number
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
time Sub-menu/parameter (7-segment font)
1nFo Main 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 GmbH 15
Initial Start-Up – Setup
Attention!
!
Note

3 Initial 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.
16 GMC-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 1C 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 GmbH 17
Control Functions

4 Control 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
Function Display
MAN / AUTO
Range switching sequence for:
V: 100 mV* Hz: 100 Hz
: 100 
10 M 40 M
A: METRA HIT X-
100A 1 mA 10 mA 100 mA 1A 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 1F 10F 100F 1000F
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 k1 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
18 GMC-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 digits ZERO REL
> 200 to 5000 digits REL
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 GmbH 19
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.
20 GMC-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
Activate Brief blinks Once
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 GmbH 21
Change to
Min/Max
Brief See table in chapter 4.4.1
Exit Long
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
Condition Response 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
Stop Long Are deleted
Press
DATA /
Min/Max
2 x brief are 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.
22 GMC-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)
Parameter Page: 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 GmbH 23
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.
... StorE 017.4 % 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
CLEAr empty
24 GMC-I Messtechnik GmbH
Control Functions
GMC-I Messtechnik GmbH 25
V/Hz, , Temperature, and A/Hz Measurements

5 Measurements

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 kHz 10 kHz 10 kHz 1 kHz
ECH
METRAHIT PROMETRAHIT B
ASE
26 GMC-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 CL iP 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
... SET rAtE  ... CL IP
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 GmbH 27
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.
28 GMC-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 GmbH 29
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.
30 GMC-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 GmbH 31
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:
MHz tE/t
P
100 Hz ... 1 kHz 2 ... 98%
... 10 kHz 5 ... 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.
32 GMC-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 GmbH 33
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.
Interference voltages distort measurement results!
Set the rotary switch to .
Connect the conductor path under test as shown.
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):
 ...  SET rAtE  ...  bEEP
1nFo
1, 10, 20, 30, 40, 90
(10 = default setting)
34 GMC-I Messtechnik GmbH


5.4 Diode Testing with a Constant Current of 1 mA

Note
COM
V Tem p
Forward Direction Reverse 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 GmbH 35
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 + 1372.0C
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).
36 GMC-I Messtechnik GmbH
V/Hz, , Temperature, and A/Hz Measurements
COM
V Tem p
Te mp
TC
0023.3
°C
Tem p
RTD
Typ e K
0025.6
°C
Pt1000
TC
RTD
000.00
Short Leads
R L
Enter Cable Resistance
Automatic
RTD
Compensation
Measuring Ranges
RTD Pt100 –200.0 + 850.0C RTD Pt1000 –150.0 + 850.0C
FUNC
ENTER
FUNC
ENTER
ZERO
ESC
ZERO
ESC
FUNC
ENTER
000.50
R L
5.5.2 Measurement with Resistance Thermometers
(METRAHIT X-
Set the rotary switch to “TempTC” or “Temp
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 GmbH 37
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!
38 GMC-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 DC 100 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 GmbH 39
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)
METRAHITTECH
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
40 GMC-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)
METRAHITT
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 GmbH 41
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 DMM Clip Types
100 mV 1 V 10 V
1:1
1:10
1:100
1:1000
100.00 mA 1.0000 A 10.000 A WZ12C
1.0000 A 10.000 A 100.00 A
10.000 A 100.00 A 1000.0 A
100.00 A 1000.0 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.
42 GMC-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 M9 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
 ...  SET rAtE  ...  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 DMM Clip Types
100 mV 1 V 10 V
100.00 mA 1.0000 A 10.000 A WZ12C
1.0000 A 10.000 A 100.00 A
10.000 A 100.00 A 1000.0 A
100.00 A 1000.0 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 GmbH 43
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 DMM Clip Types
100 mA 1 A 10 A
100,00 mA 1,0000 A 10,000 A
1,0000 A 10,000 A 100,00 A
10,000 A 100,00 A 1000,0 A
100,00 A 1000,0 A (10 000,0 A)
with Clip-On Current
WZ12A, WZ12D, WZ11A, Z3511, Z3512, Z3514
ECH only)
(default setting: METRAHIT TECH: OFF)
44 GMC-I Messtechnik GmbH
V/Hz, , Temperature, and A/Hz Measurements
GMC-I Messtechnik GmbH 45
Device and Measuring Parameters
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER

6 Device 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
... set rAte ... 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.
46 GMC-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 **
CF
Main Menus
Query Set Set Set Set
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 GmbH 47
Device and Measuring Parameters
Parameter X
0.diSP 48: 0.diSP – show/hide leading zeros Addr A.diSP 49: 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
:
1nFo bAtt
2.75 V.
vErSion – query firmware version
1nFo bAtt: 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
1nFo bAtt:  ... 
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-
1nFo bAtt:  ... 
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.,
t = tenths of a sec.
0:00:10, 0:00:20, 0:00:30, 0:00:40, 0:00:50, 0:01:00, 0:02:00, 0:05:00, 0:10:00, 0:20:00, 0:30:00, 0:40:00, 0:50:00, 1:00:00, 2:00:00, 3:00:00, 4:00:00, 5:00:00, 6:00:00, 7:00:00, 8:00:00, 9:00:00
Setting the Sampling Rate
1nFo
... 
SET rAtE
00:00.1 ... 00:00.5 ... 9:00:00 
(00:00.5 = 0.5 seconds = default value)
0.diSP – show/hide leading zeros
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
)

48 GMC-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
... SET rAtE ... 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.
... SET rAtE ... APoFF
1nFo
bEEP – set the limit value for continuity testing
1nFo
... SET rAtE ... bEEP
1, 10, 20, 30, 40, 90

(10 = default setting)
irStb – status of the infrared receiver in the stand-by mode (METRAHIT X-
TRA/OUTDOOR/SECULIFEHITAM/MD only)
See chapter 7.2 on page 53 regarding settings.
Addr – select device address (METRAHIT X-TRA/OUTDOOR/SECULIFEHITAM/
MD only
See chapter 7.2 on page 53.
10 ... 59 min on

(10 minutes = default setting)
GMC-I Messtechnik GmbH 49
Device and Measuring Parameters
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
ZERO
ESC
ON / OFF
LIGHT
dAtE – enter date
Entering the current date makes it possible to acquire measured values in real-time.
... SET rAtE ... 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 ... SET rAtE ... t iME
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.
50 GMC-I Messtechnik GmbH
Device and Measuring Parameters
GMC-I Messtechnik GmbH 51
Interface Operation
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER
FUNC
ENTER
7 Interface 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
 ...  SEnd StArt send
1nFo
The symbol blinks at the display in order to indicate interface operation.
Stopping Continuous Transmission Operation with Menu Functions
1nFo
 ...  SEnd send
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.
52 GMC-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.
1nFo
... SET rAtE ... Addr
00 ... 01 ... 15

(15 = default setting)
GMC-I Messtechnik GmbH 53
Technical Data
X
-
TRA
/O
UTDOOR
PRO
SECULIFE HIT
AM
/
MD
TECH

8 Technical Data

Meas.
V
Measuring Range
100 mV 10 V 9M9M // < 50 pF 0.09 + 5 with ZERO 1 + 30 (> 300 d) 1)1 + 30 (> 300 d)
1 V 100 V 9M9M // < 50 pF 0.05 + 3 0.5 + 9 (> 200 d) 1 + 30 (> 300 d)
10 V 1 mV 9M9M // < 50 pF 0.05 + 3 0.5 + 9 (> 200 d) 1 + 30 (> 300 d)
100 V 10 mV 9M9M // < 50 pF 0.05 + 3 0.5 + 9 (> 200 d) 1 + 30 (> 300 d)
1000 V 100 mV 9M9M // < 50 pF 0.09 + 3 0.5 + 9 (> 200 d) 1 + 30 (> 300 d)
Function
A
TRA
X-
OUTDOOR
PRO
A
ECH
T
Factor: 1:1/10/100/1000
A
T
A
T BASE
1)
Values of less than 200 digits are suppressed in the mV range.
2)
At 0  ... + 40 C
3)
Display up to max. 5.1 V, “OL” in excess of 5.1 V.
54 GMC-I Messtechnik GmbH
0.1/1/10/100 A 100 mA
1/10/100/1000 A 1 A 0.2 A continuous
ECH
10/100/1000/10000 A
0.1/1/10/100 A 100 mV
1/10/100/1000 A 1 V
ECH
10/100/1000/10000 A
100 10 m < 1.4 V Approx. 300 A 0.2 + 5
1k 100 m < 1.4 V Approx. 250 A 0.2 + 5
10 k 1  < 1.4 V Approx. 100 A 0.2 + 5
100 k 10 < 1.4 V Approx. 12 A 0.2 + 5
1M 100  < 1.4 V Approx. 1.2 A 0.2 + 5 10 M 1k < 1.4 V Approx. 125 nA 0.5 + 10 40 M 10 k < 1.4 V Approx. 20 nA 2.0 + 10
100 —0.1 Ap prox. 8 V Ap prox. 1 mA cons t. 3 + 5
5.1 V
Resolution at Upper
Range Limit
11,999 1199
100 A 10 nA 12 mV 12 mV 0.5 + 5 1.5 + 10 (> 200 d) 1.5 + 30 (> 200 d)
1 mA 100 nA 120 mV 120 mV 0.5 + 3 1.5 + 10 (> 200 d) 1.5 + 30 (> 200 d)
10 mA 1 A 16 mV 16 mV 0.5 + 3 1.5 + 10 (> 200 d) 1.5 + 30 (> 200 d)
100 mA 10 A 160 mV 160 mV 0.5 + 3 1.5 + 10 (> 200 d) 1.5 + 30 (> 200 d)
1 A 100 A 40 mV 40 mV 0.9 + 10 1.5 + 10 (> 200 d) 1.5 + 30 (> 200 d)
10 A 1 mA 600 mV 600 mV 0.9 + 10 1.5 + 10 (> 200 d) 1.5 + 30 (> 200 d) 10 mA 1 A 16 mV 16 mV 0.1 + 5 1 + 10 (> 200 d) 1.5 + 30 (> 200 d)
100 mA 10 A 160 mV 160 mV 0.1 + 5 1 + 10 (> 200 d) 1.5 + 30 (> 200 d)
1 A 100 A 40 mV 40 mV 0.9 + 10 1 + 10 (> 200 d) 1.5 + 30 (> 200 d)
10 A 1 mA 600 mV 600 mV 0.9 + 10 1 + 10 (> 200 d) 1.5 + 30 (> 200 d)
Input Input impedance
10 A plus clip-on current sensor error
10 V Plus clip-on current sensor error
3)
1 mV Approx. 8 V Approx. 1 mA const. 0. 5 + 3
Voltage drop, approx. at upper range limit
Open-circuit voltage
Input Impedance
~ /
Current measuring input
(A socket)
Voltage measurement input
T
ECH: (V socket) Ri =1 M/9 M
ASE: ( V socket) Ri ~1 M
B
Meas. curr. @ range limit
(0.5% rdg. + 10 d)
Intrinsic Errorunder Reference Conditions
(... % rdg. + ... d) (... % rdg. + ... d) (... % rdg. + ... d)
Specification see current ranges A (T
(... % rdg. + ... d)
with active ZERO function
4)
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
Value Time
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
11,999 1199 ~ / Value Time
Input impedance
Discharge resistance U
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 nF 10 pF 10 M 0.7 V 1 + 6
100 nF 100 pF 1 M 0.7 V 1 + 6
1 F 1 nF 100 k 0.7 V 1 + 6
10 F10nF12k 0.7 V 1 + 6
100 F 100 nF 3 k 0.7 V 5 + 6
1000 F1F3k 0.7 V 5 + 6
100.00 Hz 0.01 Hz
1.0000 kHz 0.1 Hz
10.000 kHz 1 Hz
100.00 kHz 10 Hz 10 Hz
30.00 kHz 10 Hz 10 Hz
100 Hz ... 1 MHz
0.01 ... 100 Hz
2.0 ... 98% 0.01% 100 Hz ... 1 kHz 1 Hz 0.1 R per kHz > 2 V ... 5 V
5.0 ... 95% 0.01% ... 10 kHz 1 Hz 0.1 R per kHz > 2 V ... 5 V
10... 90% 0.01% ... 100 kHz 1 Hz 0.1 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 Hz 0.05 + 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)
Overload Capacity
2)
1000 V
DC AC
Max. 10 s RMS Sine
Hz (V) 8):
Hz(A )8):
1000 V
Max. 10 s
9
)
Hz (A):
1000 V Max. 10 s
1000 V
DC/AC
Max. 10 s RMS
Sine
GMC-I Messtechnik GmbH 55
Technical Data
Influencing Quantities and Influence Error
Influencing
Quantity
Tem p er at ur e
1)
With zero balancing
Influencing
Quantity
DATA V A, , Hz 10 d MIN / MAX V A, , Hz 30 d
Sphere of Influence
0 C ... +21 C
and
+25 C... +40 C
Measuring Quantity
Measured Quantity /
Measuring Range
V 0.2 + 10
V 0.4 + 10
100 ... 1 M 0.5 + 10
> 1 M 1 + 10
mA/A 0.5 + 10
mA/A 0.8 + 10
10 nF ... 100 F1 + 5
Hz 0.2 + 10
C/F (Pt100/Pt1000) 0.5 + 10C/F thermocouple K 0.2 + 10
Influence Error
(...% rdg. + ... d)
1)
(...% rdg. + ... d) / 10 K
Influence Error
3)
TRA
METRAHIT BASE
MD
Influencing
Quantity
Meas. Quantity/
Meauring
Range
Sphere of Influence
Intrinsic Error
 ... % rdg. + ... d)
METRAHIT X­METRAHIT O
UTDOOR
METRAHIT TECH
METRAHIT PRO
SECULIFEHITAM/
> 15 Hz ... 45 Hz 3 + 30 3 + 30
100.00 mV
> 65 Hz ... 1 kHz 2 + 30 3 + 30
> 1 kHz ... 10 kHz 3 + 30
> 15 Hz ... 45 Hz 2 + 9 3 + 9
...
> 65 Hz ... 1 kHz 1 + 9 3 + 9
> 1kHz...10/20kHz
4)
3 + 9
> 15 Hz ... 45 Hz 2 + 9 3 + 9
> 65 Hz ... 1 kHz 2 + 9 3 + 9
2)
Frequency
1.0000 V
V
AC
100.00 V
1000.0 V
> 1 kHz ... 10 kHz 3 + 30
100.00 A
A
AC
10.0000 A
100 mV /
A
AC
2)
Power limiting: frequency x voltage max. 3 x 106 V x Hz for U > 100 V
3)
The accuracy specification for frequency response is valid within a dis-
1 V / 10 V
> 15 Hz ... 45 Hz
...
> 65 Hz ... 10 kHz
3 + 10
> 65 Hz ... 1 kHz 3 + 10
play value range of 10% to 100% of the measuring range for both mea­suring modes with the TRMS converter in the AC and (AC+DC) ranges.
4)
METRAHIT X-TRA/OUTDOOR/ SECULIFEHIT METRAHIT T METRAHIT P METRAHIT B
AM/MD: Frequency response up to 20 kHz,
ECH: Frequency response up to 10 kHz,
RO: Frequency response up to 10 kHz, ASE: Frequency response up to 1 kHz
56 GMC-I Messtechnik GmbH
Technical Data
Influencing
Quantity
Crest factor CF
5)
Except for sinusoidal waveshape
Influencing Qty. Sphere of Infl. Measured Quantity Influence Error
Relative humidity
Influencing
Quantity
Common Mode Interference Voltage
Series Mode Interference Voltage
Sphere of
Influence
1 ... 3
> 3 ... 5 3% rdg.
75%
3 days
instrument off
Sphere of Influence
Interference quantity max. 1000 V V > 120 dB
Interference quantity max. 1000 V
50 Hz ... 60 Hz, sine
Interference quantity: V ,, respective
nominal value of the meas. range,
max. 1000 V , 50 Hz ... 60 Hz, sine
Interference quantity max. 1000 V V > 110 dB
Measured Quantity /
Measuring Range
V, A
V A, , Hz, C1 x intrinsic error
Measured Quantity /
Measuring Range
1 V , 10 V > 80 dB
Influence Error
1% rdg.
Damping
100 V > 70 dB
1000 V > 60 dB
V> 50dB
5)
Reference Conditions
Ambient temperature + 23C 2K Relative humidity 40 ... 75% Measured qty. frequency 45 ... 65 Hz Measured qty. waveshape sine Battery voltage 3 V 0.1 V
Response Time (after manual range selection)
Measured Quantity /
Measuring Range
V, V
AV , A
100 ... 1 M 2s
10/40 M 5s
Continuity < 50 ms
C (Pt100) max. 3 s
10 nF ... 100 Fmax. 2s
1 000 Fmax. 7s
>10 Hz 1.5 s
Response Time
Digital Display
1.5 s
1.5 s
Measured Quantity Jump Function
From 0 to 80%
of upper range limit value
From to 50%
of upper range limit value
From 0 to 50%
of upper range limit value
Internal Clock
Time format TT.MM.JJJJ hh:mm:ss Resolution 0.1 s Accuracy 1 minute per month Temperature
influence 50 ppm/K
GMC-I Messtechnik GmbH 57
Technical Data
Data Interface (METRAHIT X-TRA/OUTDOOR/SECULIFEHITAM/MD only)
Type Optical via infrared light through the
Data transmission (data transfer) Serial, bidirectional (not IrDa compatible)
Protocol Device specific Baud Rate 38,400 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 capacity 4 MBit / 540 kB for approx. 15,400
TRA/OUTDOOR/SECULIFEHITAM/MD only)
measured values with time stamp
Power Supply
Battery 2 ea. 1.5 V mignon cell (2 ea. size AA),
Service life With alkaline manganese: approx. 200
Battery test Battery capacity display with battery
Power OFF function The 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.
58 GMC-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
Display LCD scale with bar graph or pointer,
Scaling With 4 division lines each
Polarity display With automatic switching Overflow display With the symbol Measuring rate 40 per second and display refresh
Digital
Display / Char. Height Number of places 4½ place 11,999 steps Overflow display 0L” is displayed for 12,000 digits Polarity display “–” (minus sign) is displayed
Measuring rate 10 measurements per second;
Refresh Rate 2 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 voltage Intermittent signal at above 1000 V For current Intermittent signal at above 10 A
Continuous signal at above 16 A
Fuse for METRAHIT X-TRA/OUTDOOR/TECH/PRO/SECULIFEHITAM/MD
Fuse FF (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 category II I IV Operating voltage 1000 V 600 V
SECULIFEHIT
Measuring category II I IV Operating voltage 600 V 300 V
AM/MD
GMC-I Messtechnik GmbH 59
Technical Data
Electromagnetic Compatibility (EMC)
Interference emission Interference immunity
EN 61326-1:2013, class B EN 61326-1:2013 EN 61326-2-1:2013
Ambient Conditions
Operating temp. range T
A
Storage temp. range 25 C ... + 70 C (without batteries)
Relative humidity Max.75%, no condensation allowed,
Elevation to 2000 m Deployment
10 C ... +50 C
METRAHIT O
UTDOOR &
SECULIFEHITAM/MD
max. 96 %
Indoors; outdoors only within specified ambient conditions
only:
Mechanical Design
Housing Impact resistant plastic (ABS) Dimensions 200 x 87 x 45 mm
Weight Approx. 0.35 kg with batteries Protection Housing: IP 52
Table Excerpt Regarding Significance of the IP Code
IP XY
(1st digit X)
Protection against pene-
tration of solid particles
5 Dust protected 2 Dripping (15 inclination) 6 Dust-proof 5 Jet-water
(without protective rubber cover)
Extension of the
METRAHIT O
UTDOOR
SECULIFEHITAM/MD:
Housing: IP 65
IP XY
(2nd digit Y)
Protection against
penetration by water
&
60 GMC-I Messtechnik GmbH
Technical Data
GMC-I Messtechnik GmbH 61
Maintenance – Calibration
Attention!
!
Note
Note
MEASURE
SETUP
FUNC
ENTER

9 Maintenance and Calibration

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

Message Function Meaning
FUSE
0L

9.2 Batteries

Current measurement Blown fuse
In all operating modes Battery voltage has fallen below 1.8 V
Measurement Indicates 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:
:
1nFo bAtt
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-
62 GMC-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!
9.3 Fuse (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 GmbH 63
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.
64 GMC-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 GmbH 65
Accessories
Attention!
!

10 Accessories

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 Voltage 600 V Measuring Category
CAT IV CAT III CAT II
Maximum Rated Current 1 A 1 A 16 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 Voltage 300 V Measuring Category
CAT IV CAT III CAT II
Maximum Rated Current 1 A 1 A 16 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 ... + 50C Relative humidity 50 to 80% Pollution degree 2
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.
66 GMC-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
GMC-I Messtechnik GmbH 67
Index

11 Index

Numerics
0.diSP ................................................................... 48
A
A.diSP ................................................................... 49
Addr ...................................................................... 53
APoFF ................................................................... 49
Automatic Shutdown
.......................................................17
Disabling
Specifying a Time .........................................17
AUTO-Range Function ......................................... 18
B
bAtt ....................................................................... 48
Batteries
Charge Level .................................................62
Charging Level ..............................................13
Periods of Non-Use ......................................62
Replacement .................................................63
bEEP ..................................................................... 49
C
Cable Resistance ................................................. 37
Capacitance Measurement ................................. 38
Clear Memory ....................................................... 24
Clip-On Current Sensor ................................. 42, 43
Clip-On Current Transformer .............................. 44
Continuity Test ..................................................... 34
Current Measurement
Notes .............................................................39
Scope of Functions .......................................39
68 GMC-I Messtechnik GmbH
D
dAtE ................................................................. 48, 50
Default Settings .................................................... 50
Diode Test ............................................................. 35
Display Illumination ..............................................16
Duty Cycle Measurement .....................................32
E
Error Messages ....................................................62
F
Fuse
Characteristic Values ....................................59
H
Housing Maintenance .......................................... 64
I
Interfaces
Accessories ...................................................67
States ............................................................13
irStb ....................................................................... 53
itEMP .....................................................................48
M
Manufacturer’s Guarantee ................................... 65
Measured Value Storage
DATA Function ..............................................21
Min-Max Values ............................................22
Measurement Cables ........................................... 66
Measuring Category
Characteristic Values
Significance .....................................................8
Measuring Range Selection
....................................59
Automatic
Manual .......................................................... 18
Memory
Ending Recording ......................................... 24
Querying Occupancy .................................... 24
Start Recording ............................................. 23
O
OCCUP ...................................................................48
Overview
Keys and Connections .................................. 12
Parameters ...................................................47
P
Power Pack
Accessories .................................................. 66
Connector Socket Position ........................... 15
Initial Start-Up ............................................... 16
Product Support ......................................................3
Product Support Hotline .........................................3
R
rAtE ........................................................................48
Recalibration Service ........................................4, 65
Remote ..................................................................36
Repair and Replacement Parts Service .................4
Replacing the Fuse ...............................................63
Resistance Measurement .....................................33
Return of Old Devices ...........................................64
S
Safety Precautions ..................................................8
Software Enabling ...................................................3
...................................................... 18
Standard Equipment .............................................. 2
Switching the Instrument On
Manual ..........................................................16
Via PC ............................................................16
Symbols
Digital Display
Instrument .....................................................15
Rotary Switch Positions ................................14
...............................................13
T
Temperature Measurement
With Resistance Thermometers ...................37
With Thermocouples .....................................36
tiME ................................................................. 48, 50
U
Use for Intended Purpose .................................... 10
V
vErSion .................................................................. 48
Voltage Comparator ....................................... 29, 31
Voltage Measurement
.............................................................26
Notes
Scope of Functions .......................................26
W
WEEE Mark ........................................................... 15
Index
GMC-I Messtechnik GmbH 69
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 info@gossenmetrawatt.com www.gossenmetrawatt.com
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