MTE CheckMeter 2.1 User manual

CheckMeter 2.1 Operation Manual_R02 08.2014
CheckMeter 2.1
Single-phase Portable Working Standard
for Testing of Electricity Meters
Operation Manual

CheckMeter 2.1 Operation Manual_R02 Page 2 of 52
MTE Meter Test Equipment AG
Landis + Gyr-Strasse 1
CH-6304 Zug
Switzerland
Phone: [phone]
Email: [email protected]
EMH Energie-Messtechnik GmbH
Vor dem Hassel 2
D-21438 Brackel
Germany
Phone: [phone]
Fax: [phone]
Email: [email protected]
Copyright MTE Meter Test Equipment AG
All rights reserved.
The contents of this manual are
subject to change without notice.
All efforts have been made to ensure
the accuracy of this publication but
MTE Meter Test Equipment AG can
assume no responsibility for any errors Customs tariff number:
or their consequences 9030.3100

CheckMeter 2.1 Operation Manual_R02 Page 1 of 52
Content
1. Safety ..................................................................................................................................3
2. General.......................................................................................................................................4
3. Connections and control elements ..........................................................................................5
4. Start-up of the instrument.........................................................................................................8
5. Operation principles..................................................................................................................9
5.1 Cursor keys and enter key....................................................................................................9
5.2 Keypad...............................................................................................................................10
5.3 Menu Card (MC).................................................................................................................10
5.4 Functional Button (FB)........................................................................................................10
5.5 Status indications ...............................................................................................................11
5.6 Data input...........................................................................................................................11
5.7 Load / Save / Delete settings .....................................................................11
6. Installation of the instrument.............................................................................13
6.1 Basic settings of the instrument .................................................................................13
6.1.1 Beeper setup......................................................................................................14
7. Operation of the working standard ..........................................................15
7.1 Basic settings of working standard.............................................................................15
7.1.1 Current range selection.......................................................................................17
7.1.2 Load / save settings............................................................................................18
7.2 Meter testing..............................................................................................................18
7.2.1 Measuring set-up.........................................................................................................21
7.2.2 Edit error parameters..........................................................................................21
7.2.3 Load / save error parameters..............................................................................23
7.3 Measurement of load values......................................................................................24
7.3.1 Harmonic Analysis..............................................................................................24
7.3.2 Waveform display...............................................................................................25
7.4 Vector diagram ..........................................................................................................26
7.5 Energy measurement.................................................................................................28
7.5.1 Edit counter parameters......................................................................................29
7.5.2 Load/save counter parameters ...........................................................................30
8. Storage of results ...........................................................................................................31
8.1 Definition of administrative dataset (ADS)...........................................................................33
8.1.1 Edit administrative dataset..................................................................................33
8.1.2 Load / save administrative data ..........................................................................35
8.2 Save results...............................................................................................................36
8.3 View results...............................................................................................................37
8.3.1 Examples of results for different dataset types ............................................................38
8.4 Print results................................................................................................................40
8.4.1 Layout of printout (option)............................................................................................40
8.4.2 Printout example of external printer (option)................................................................43

CheckMeter 2.1 Operation Manual_R02 Page 2 of 52
8.5 Delete results.............................................................................................................44
8.6 Data transfer over serial interface.......................................................................................44
9. Connection examples..............................................................................................................45
9.1 Testing of a single phase direct connected meter up to 100 A............................................45
9.2 Testing of a transformer operated meter.............................................................................47
Testing of a single phase three wire meter (ANSI Form 2S or Form 2A) .......................................48
9.3 Verification of the accuracy of the CheckMeter 2.1.............................................................50
10. Technical data......................................................................................................................51

CheckMeter 2.1 Operation Manual_R02 Page 3 of 52
1. Safety
The following symbol appears on the product and in the operation manual with the meaning:
Caution! Please consult the operation manual before using the in-
strument.
Failure to follow or carry out instructions preceded by this symbol may re-
sult in personal injury or damage of the device and the installation.
General precautions for use
To prevent electric shock:

This product has to be only used by qualified personnel practicing
applicable safety precautions.

Use caution during installation and use of this product; high voltages
and currents may be present in circuit under test.

Local safety regulations must be observed.

CheckMeter 2.1 Operation Manual_R02 Page 4 of 52
2. General
The CheckMeter 2.1 Portable Working Standard is a single-phase portable electronic meter test unit
of accuracy class 0.2, used for testing single electricity meters on site.
The unit can be used with an active error compensated clamp-on CT100A (Measuring range:
10 mA … 100 A / cable : max. 10 mm).
Advantages
•Precision test equipment for AC values in the 45 Hz to 66 Hz frequency range
•LCD display ¼ VGA (320 x 240 Pixels) with graphical user interface
•Wide measuring range with auto ranging
•Display of vector diagram for analysis of mains conditions and meter connections
•Measurements of wave forms and harmonics with display
•Easy detection of circuit connection faults
•Data memory for test results and customer data
•Small dimensions and light in weight
•Serial interface (RS 232) for data transfer
Functions
•Active, reactive and apparent energy measurement with integrated error calculator
•Impulse output for energy (galvanic isolated)
•Registration of active, reactive and apparent energy for register testing
•Active, reactive and apparent power measurements
•Current and voltage measurements
•Phase angle measurement
•Power factor measurement
•Frequency measurement
Options
•Software CALSOFT for memory readout, online data logging, presentation and printout of results
and customer data.
•1 clamp-on CT1000A (Measuring range: 100 mA … 120 A, cable : max. 52 mm

CheckMeter 2.1 Operation Manual_R02 Page 5 of 52
3. Connections and control elements
The various connections are accessible on the top and the bottom of the instrument. Operation may
be carried out via the integrated keyboard or through the serial interface.
Top view
[1]
Phase Connections for voltages U1
Connection: 4 mm red insulated socket
[2]
Neutral Connection for voltage N
Connection: 4 mm black insulated socket
LINE / Inputs 46V … 300V
CAT III 300V 47Hz … 63Hz
Attention! The voltage between voltage termi-
nals ([1], [2]) and to protecting earth shall not ex-
ceed 300 V, if the instrument is applied in meas-
urement category CAT III environment.
[3]
Connection for clamp-on current transformers
•1 active 100A error compensated clamp-on CT (Standard accessory)
•1clamp-on CT1000A (Measuring range: 100 mA … 120 A, cable : max. 52 mm)
(OPTION)
Connector type: 9 pole dedicated Redel socket, suitable for special MTE clamp-on cur-
rent transformers.
[4]
Impulse input / output
This input can be used for scanning heads (such as the SH 2003) and can also be used
to connect to retransmitting contacts of the device being tested.
The connector can also be configured as output (Pin 3: fout, Pin 4: GND) in the installa-
tion menu to calibrate the instrument with a higher class reference standard.
Connector type: 5 pole Lemo socket,
Pin 1 +11 to 13V (I<60mA) (DC supply to scanning head)
Pin 2 fin max. 100 Hz (slow input, anti-bounce)
Pin 3 fin max. 200 kHz (fast input) or fout max. 10 kHz
Pin 4 GND
Pin 5 screen

CheckMeter 2.1 Operation Manual_R02 Page 6 of 52
Front view
[5]
LCD display with 320 x 240 dots (1/4 VGA)
[6]
Menu card keys to change between menu cards.
[7]
Cursor keys to navigate in menus and for data input
[8]
Enter key to activate and cancel functions and data input.
[9]
Impulse key to enter impulses manually
[10]
Alphanumeric keypad

CheckMeter 2.1 Operation Manual_R02 Page 7 of 52
Bottom view
[11]
Supply voltage connection
Connection: EURO connector
Supply voltage connection
46 … 300 VAC, 47 … 63 Hz
[12]
RS232 serial line interface
Connection: 9 pole SUB-D connector
Pin 2 TxD
Pin 3 RxD
Pin 5 GND
Pin 7 CTS
Pin 8 RTS

CheckMeter 2.1 Operation Manual_R02 Page 8 of 52
4. Start-up of the instrument
Before start-up of the instrument carefully read the safety precautions in chapter
1.
Examples of connections using the CheckMeter 2.1 for measurements on different types of devices
under test and for various connection modes are given in chapter 9.
Attention! Disconnect or switch off dangerous voltages in the measuring set-up during
connecting or disconnecting the CheckMeter 2.1 whenever possible. Regard local
safety regulations for connection of measuring instruments to the installation.
Steps to connect and disconnect the CheckMeter 2.1
Connect
1.
Connect clamp-on CT at the CheckMeter 2.1
2.
Connect scanning head SH 2003 or hand switch at the CheckMeter 2.1, if used.
3.
Connect the supply of the CheckMeter 2.1:
Supply from auxiliary voltage
Use the standard two pole supply cable. The instrument will immediately power-up.
Supply from measuring voltage
The instrument is automatically supplied from measuring voltage U1-N, if no auxiliary voltage
is connected.
The instrument will power-up as soon as the measuring voltage is present.
Attention! The supply voltage of auxiliary source or measuring voltage must al-
ways be in the range: 46 to 300 V, 47 to 63 Hz. Higher voltages may damage the
instrument.
4.
Connect voltage cables first at CheckMeter 2.1 and then at measuring set-up.
5.
Fix clamp-on CT on wire of measuring set-up.
Disconnect
1.
Remove clamp-on CT from wire of measuring set-up.
2.
Disconnect voltage cables first at measuring set-up and then at CheckMeter 2.1
3.
Disconnect supply to CheckMeter 2.1:
a) Disconnect from auxiliary voltage supply
b) Remove connections for supply from measuring voltage
4.
Disconnect scanning head SH 2003 or hand switch at CheckMeter 2.1, if used.
5.
Disconnect clamp-on CT at CheckMeter 2.1.

CheckMeter 2.1 Operation Manual_R02 Page 9 of 52
5. Operation principles
The following description deals with the manual opera-
tion of the CheckMeter 2.1.
After power-on the start menu is shown with the logo
cycling between MTE and EMH.

The actual active menu Measure or Installation (Inst) is
indicated at the upper border in the form of a Menu Card
(MC).
Selectable functions and submenus are indicated at the
left side in the form of Functional Buttons (FB).
The reference meter status, time and date are perma-
nently displayed at the lower border.
The lower part of the start menu showstype and version
information.
ChkMtr2.1 Instrument type
V2.04 - B0001 Firmware version with build code
01.12.2011 Date of the firmware
SN36429 Serial number of the instrument
This information may be helpful during contacts with
MTE in the case of a problem.
5.1 Cursor keys and enter key
Change left / right between menu cards (MC)
These two keys are exclusively reserved for this function. The function is also available
in submenus.
The Cursor keys are used for various purposes:
•The up / down cursor keys are used to move the selection frame up or down to the
desired functional button and to make selections within given variants during inputs.
•During numeric data input the left cursor key is used to delete wrong entered digits
to the left.
•During alphanumerical inputs the cursor keys are used to navigate inside the input
field.
The Enter key is used to activate or terminate the function of a functional button, which
is selected with the selection frame.
This can be:
•Selection of alternative settings (cyclical mode)
•Activation and termination of data input
•Call of a submenu or exit from a submenu
The Impulse key is used to perform:
•Error measurements in the start/stop mode by entering the first and last LED im-
pulse or revolution of the meter under test.
•Restart of the energy measurement and the maximum demand period during a run-
ning counter test.

CheckMeter 2.1 Operation Manual_R02 Page 10 of 52
5.2 Keypad
Alphanumerical keys for input of numerical values and text within the menus.
During text input the characters shown in the lower part of the key can be selected by
repeated key operations. The input mode will then cycle between numbers and alpha
characters. The last selected character or number will be inserted into the input field.
The sign below the zero symbolizes a space. It may be used to insert space or to
delete characters or numbers by overwriting them with a space.
5.3 Menu Card (MC)
Actual menu card marked with left / right arrow
Active menu card not selected
Inactive menu card not selectable, is jumped over
5.4 Functional Button (FB)
Select functional button within one column
Move black selection frame with up / down cursor keys to the desired func-
tional button (FB).
If the down cursor key is pressed at the last FB the frame jumps to the first FB
and if the up cursor key is pressed at the first FB the last FB is selected (cycli-
cal mode).
FB with several functions
Use the left / right cursor keys to select one of the available functions (cyclical
mode).
The actual selected function is indicated on the FB.
FB to select one of several states
Use the left / right cursor keys to select one of the available states (cyclical
mode).
The actual selected state is not indicated on the FB itself.
Activate function or submenu
Press the enter key to activate or terminate the selected function or to call a
submenu.
FB with several states
Press the enter key several times to select one of two or more predefined
states (cyclical mode). The actual selected state is indicated on the FB.
Empty FB reserved for future applications.
FB to exit from submenu
All submenus have a FB with a door to exit the submenu.
FB to exit the submenu with saving of the settings
The settings changed in the submenu are saved, when leaving the submenu.

CheckMeter 2.1 Operation Manual_R02 Page 11 of 52
5.5 Status indications
A status line at the bottom of the display shows the basic settings of the CheckMeter 2.1, as defined
in the installation menu. For the meaning of the different symbols appearing in the status line see
chapter 7.1.
5.6 Data input
Numerical input
Data input active
A cursor symbol is displayed behind the old value.
...
The first key press of an alphanumeric key deletes the old value and the pressed key
(numeric character 0 ... 9, decimal point or +/- sign) is inserted as first character of the
new value.
Delete wrong inputs
Delete character by character left to the cursor.
Alphanumerical input
With the keypad the numbers and characters shown on the upper and lower half of the keys and with the point
key some special characters can be entered.
Select input format
Repeated key operation changes between (cyclical mode):
Capital letters
Lower case letters
Numbers
Input of special characters
The listed special characters can be selected by repeated key operation of the point key (cyclical
mode).
. @ ( ) _ /
Special characters
5.7 Load / Save / Delete settings
Select position
A grey selection line is displayed during the FB (load / save or delete) is
shown depressed. Use the up / down cursor keys to move the selection
line to the desired position. When reaching the top or bottom border of
the display, a scroll mode is activated and additional available positions
are displayed.
Cancel the function

CheckMeter 2.1 Operation Manual_R02 Page 12 of 52
Run function
By pressing the enter key the active function (depressed FB) is applied to
the selected position:
The actual settings are saved at the selected position. An occupied
position will be overwritten.
The reference values of the selected position are loaded.
The reference values of the selected position are deleted (---).
The values, which are saved at the black marked position, are automatically loaded as default
values during power-on. Therefore it is useful to save the most used settings at position 00.

CheckMeter 2.1 Operation Manual_R02 Page 13 of 52
6. Installation of the instrument
Installation
Basic settings of the instrument (6.1)
6.1 Basic settings of the instrument
The right side of the display shows the most of the
actual basic settings of the instrument (exc. Beeper
setup (6.1.1)).
Use the cursor keys to move the black se-
lection frame to the FB, where settings
shall be changed.
Press the enter key to select direct be-
tween different settings or to activate the
function or the submenu of the FB.
Save settings and back to Installation (6)
Adjustment of display contrast
The display contrast can be adjusted with left / right cursors.
Low contrast Repeated operation of the left cursor key decreases the contrast.
High contrast Repeated operation of the right cursor key increases the contrast.
Hint: The contrast can also be adjusted in thesame manner in thestart menu, immediately after power-
on of the instrument.
Input of clock time
A new time must be completely entered in the form hh:mm:ss
h: hour, m: minute, s: second
The separator (:) must not be entered. It is generated automatically during the input.
Input of date
A new date must be completely entered in the form dd.mm.yyyy
d: day, m: month, y: year
The separator (.) must not be entered. It is generated automatically during the input.
Adjustment of RS232 baud rate
Select with up / down cursor keys one of the listed settings:
4800 / 9600 / 19200 / 38400 / 57600 / 115200 Baud

CheckMeter 2.1 Operation Manual_R02 Page 14 of 52
Language selection
Select with up / down cursor keys one of the listed languages:
English
Deutsch
Espaniol
Francais
Svenska
Turkish
Italiano
Portuguese
6.1.1 Beeper setup
Press the enter key to enable or disable the function (cyclical mode). The function is active, if the FB
is shown depressed.
Beeper Setup
Beep for each keystroke on the keypad.
Beep each time the time base starts.
Beep each time a new error value will be displayed.
Back to Basic settings of the instrument (6.1)

CheckMeter 2.1 Operation Manual_R02 Page 15 of 52
7. Operation of the working standard
Measure
Meter testing (7.2)
Measurement of load values (7.3)
Vector diagram (7.4)
Energy measurement (7.5)
Basic settings of working standard (7.1)
7.1 Basic settings of working standard
The Functional Buttons, the right side of the display
and the status line at the bottom show the actual basic
settings.
Use the cursor keys to move the black se-
lection frame to the FB, where settings
shall be changed.
Press the enter key to select direct be-
tween different settings or to activate the
function or the submenu of the FB.
Current range selection (7.1.1)
Load / save settings (7.1.2)
Back to Measure (7)
Connection / Reactive mode
4 - wire mode / Reactive power natural mode (n)
(selection blocked, only applicable at 3-phase version)
Definition of reference value for impulse output
Select with up / down cursor keys between active (P), reactive (Q) or ap-
parent (S) power (cyclical mode).
The mean frequency f of the impulse output is proportional to the selected reference value.
Meter constant: C = 120’000’000/In [imp/kWh(kvarh, kVAh)]
Output frequency: f = C’* reference value; with C’ = C / 3’600’000 [imp/Ws(vars, VAs)]

CheckMeter 2.1 Operation Manual_R02 Page 16 of 52
Clamp-on CT type
Press the enter key to change between (cyclical mode):
Clamp-on CT100A (10 mA … 100 A) Status indication:
Clamp-on CT1000A (100 mA … 120 A) Status indication:
Option: Used for measurement on cables with diameter > 10 mm up to 52 mm
Apparent power mode
Definition of used calculation formula for the total apparent power S (selection blocked, only appli-
cable at 3-phase version)
Definition of transformer ratios
Pressing the enter key five times sequentially selects and accepts the inputs for:
Primary voltage (Up)
Secondary voltage (Us)
Primary current (Ip)
Secondary current (Is)
Type in the nominal values as indicated on the instrument transformers.
Activation of transformer ratios
Press the enter key to change between (cyclical mode):
Transformer ratios disabled Status indication:
Transformer ratios enabled Status indication:
The transformer ratios for voltage and current are always activated together. If one of the ratios is not
used, the same values for the primary and secondary values must be programmed to get a ratio of
Up/Us or Ip/Is = 1.
Time base
Interval for the update of the results on the display. A mean value over the defined time interval is
calculated and displayed.
Time base manually set Status indication:
The time base interval can be set manually by the user. Input of time base interval in seconds (s).
Range: 0.1 s … 999.9 s
The status indication shows the time base interval in seconds together with a bar graph, indicating
the elapsed time of the active running interval.
->
External time base Status indication:
In case of entering zero, the time base switches to external time base. The display of the results is
triggered by pulses on the impulse input. Using this function, the measurements can be synchronized
to other instruments and the results display can be frozen.

CheckMeter 2.1 Operation Manual_R02 Page 17 of 52
7.1.1 Current range selection
Current range selection
Automatic or manual range selection
Manual selection of ranges
Back to Basic settings of working standard (7.1)
Automatic or manual range selection
Automatic range selection
The automatically internally selected range is displayed.
E.g. with current I = 0.5 A and clamp-on CT100A the range 1.000A is
selected.
Manual range selection
The current range selection FB is activated and the actual selected range is displayed. The inter-
nal ranges can now be set manually by the user.
Manual current range selection
Activate selection with the enter key.
Select the desired range with the cursor-up and cursor-down keys.
Confirm the selection with the enter key.
<>
Range overload indication
If a measured current is higher than the actual selected range, the text -OVER- is indicated instead of
the end of range value, fast changing between normal and inverse display.
The indication disappears, as soon as the overload situation is terminated, e.g. by correct manual
range selection or change to automatic range selection.
Attention! Do not operate the instrument under overload conditions for longer time.
Internal current ranges
Clamp-on CT100 A
100 mA
1 A
10 A
100 A
Clamp-on CT1000 A
1 A
10 A
100 A
120 A

CheckMeter 2.1 Operation Manual_R02 Page 18 of 52
7.1.2 Load / save settings
The parameters at position 00 are automatically loaded at start-up of the instrument.
Available storage positions: 00 ... 14
Load / save settings
Load settings
Save settings
Delete settings
Back to Basic settings of working standard (7.1)
7.2 Meter testing
A defined number of disc mark revolutions at a mechanical meter or LED impulses at an electronic
meter or pulses of impulse outputs are counted to calculate the error of the energy measurement of
the device under test (DUT) in comparison to the CheckMeter 2.1.
The test can be performed in the scanning head mode by counting each disk mark or impulse, or in
the start / stop mode by counting only the start impulse and the last impulse.
The disc mark or the LED impulse information can be entered at the CheckMeter 2.1 either by the
impulse input, automatically with a scanning head SH 2003 or an impulse cable or manually with a
hand switch, or by the keypad with the impulse key or the enter key in start / stop mode.
Meter testing
Edit (7.2.2) or load/save (7.2.3)error parameters
Selection of tolerance band
Start / stop of error measurement with the keypad
Storage of results (8)
Back to Measure (7)
The error measurement automatically starts as soon as impulses are detected and runs continuously
using the defined error parameters (shown here with meter constant of DUT (C/R 1000 i/kWh), 20
impulses tested (t/n 20 imp), measuring mode active power (P).
The error parameter settings may be changed by editing the parameters or loading saved parameters.
Meter constant of device under test (DUT): The actual pro-
grammed meter constant of the DUT is displayed. Big constants
are indicated with index k for kilo e.g.(15k i/kWh = 15’000 i/kWh)
Test duration: The configured number of test impulses / revolu-
tions (20imp) is displayed in impulse test mode (imp) or measur-
ing time in seconds, if the time test mode (s) is selected.