Amprobe DM-II-PLUS User Manual [en, fr, de, it, es]

Users Manual

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DM-II PLUS

Power Quality Recorder

DM-II PLUS

Power Quality Recorder

Users Manual

DMIIPLUS_Rev004
© 2008 Amprobe Test Tools.
All rights reserved.

English

Limited Warranty and Limitation of Liability

Your Amprobe product will be free from defects in material and workmanship for 1 year from
the date of purchase. This warranty does not cover fuses, disposable batteries or damage from
accident, neglect, misuse, alteration, contamination, or abnormal conditions of operation or
handling. Amprobe’s warranty obligation is limited, at Amprobe’s option, to refund of the
purchase price, free of charge repair, or replacement of a defective product . Resellers are not
authorized to extend any other warranty on Amprobe’s behalf. To obtain service during the
warranty period, return the product with proof of purchase to an authorized Amprobe Test
Tools Service Center or to an Amprobe dealer or distributor. See Repair Section for details. This
warranty is your only remedy . All other warranties - whether express, implied or statutory ­including implied warranties of fitness for a particular purpose or merchantability, are hereby
excluded. Neither Amprobe nor its parent company or affiliates shall be liable for any special,
indirect, incidental or consequential damages or losses, arising from any cause or theory. Since
some states or countries do not allow the exclusion or limitation of an implied warranty or of
incidental or consequential damages, this limitation of liability may not apply to you.

Repair

All test tools returned for warranty or non-warranty repair or for calibration should be
accompanied by the following: your name, company’s name, address, telephone number, and
proof of purchase. Additionally, please include a brief description of the problem or the service
requested and include the test leads with the meter. Non-warranty repair or replacement
charges should be remitted in the form of a check, a money order, credit card with expiration
date, or a purchase order made payable to Amprobe® Test Tools.

In-Warranty Repairs and Replacement – All Countries

Please read the warranty statement and check your battery before requesting repair. During
the warranty period any defective test tool can be returned to your Amprobe® Test Tools
distributor for an exchange for the same or like product. Please check the “Where to Buy”
section on www.amprobe.com for a list of distributors near you. Additionally, in the United
States and Canada In-Warranty repair and replacement units can also be sent to a Amprobe®
Test Tools Service Center (see below for address).

Non-Warranty Repairs and Replacement – US and Canada

Non-warranty repairs in the United States and Canada should be sent to a Amprobe® Test
Tools Service Center. Call Amprobe® Test Tools or inquire at your point of purchase for current
repair and replacement rates.

In USA In Canada
Amprobe Test Tools Amprobe Test Tools

Everett, WA 98203 Mississauga, ON L4Z 1X9
Tel: [phone] Tel: [phone]
Fax: [phone] Fax: [phone]

Non-Warranty Repairs and Replacement – Europe

European non-warranty units can be replaced by your Amprobe® Test Tools distributor for a
nominal charge. Please check the “Where to Buy” section on www.amprobe.com for a list of
distributors near you.

European Correspondence Address*
Amprobe® Test Tools Europe

Beha-Amprobe GmbH
In den Engematten 14
79286 Glottertal, Germany
Tel.: [phone] – 0

*(Correspondence only – no repair or replacement available from this address. European
customers please contact your distributor.)

2

DM-II PLUS

Power Quality Recorder

CONTENTS

Precautions and Safety .........................................................................................................................5

Symbols ..............................................................................................................................................5

Safety Information ............................................................................................................................5

Warnings and Precautions ................................................................................................................5

Instrument: Description .................................................................................................................... 7

Keyboard: Description ......................................................................................................................7

Display: Description...........................................................................................................................7

Menu General – Settings (Refer to Fig.1) ........................................................................................7

Default Settings.................................................................................................................................8

System Connections ..............................................................................................................................8

Operation ..............................................................................................................................................8

Single Phase System (Refer to Fig.2) ................................................................................................ 8

Three Phase Four Wire System (Refer to Fig.3) ............................................................................... 9

Three Phase Three Wire System (Refer to Fig.4) ............................................................................. 9

Measuring Procedures ........................................................................................................................10

Recommended Procedure for a recording ....................................................................................10

To Start a Recording ........................................................................................................................10

During a Recording: (Refer to Fig.5) ..............................................................................................10

Stop a Recording .............................................................................................................................10

Connection with a PC......................................................................................................................11

Evaluating Parameter Values..............................................................................................................11

Voltage (Refer to Fig.6) ..................................................................................................................11

HARM. Mode (Refer to Fig.7) .........................................................................................................11

WAVE Mode (Refer to Fig.8) .......................................................................................................... 12

Current (Refer to Fig.9) ...................................................................................................................12

Power (Refer to Fig.12) ...................................................................................................................13

Energy (Refer to Fig.15) ..................................................................................................................14

Analyzer Config, Recorder Config, and Analyzer Memory .............................................................. 14

Analyzer Configuration (Refer to Fig.16) ...................................................................................... 14

Recorder Configuration ..................................................................................................................15

Analyzer Memory (Refer to Fig.25) ................................................................................................18

Technical Specifications ...................................................................................................................... 19

Features ...........................................................................................................................................19

Environment ....................................................................................................................................23

3

DM-II PLUS

Power Quality Recorder

Contents (continued)

Appendix .............................................................................................................................................23

Messages Displayed.........................................................................................................................23

Recordable Parameters Symbols ....................................................................................................25

4

PRECAUTIONS AND SAFETY
Symbols

Caution, risk of electric shock.
See notes

Caution, risk of electrical shock

Earth (ground) TERMINAL

Audible tone

Complies with EU directives










Battery



Equipment protected throughout by DOUBLE
INSULATION or REINFORCED INSULATION

Alternating Current

Conforms to relevant Australian
standards.

Do not dispose of this product as unsorted
municipal waste.

Application around and removal from hazardous
live conductors is permitted











Safety Information

The DM II Plus conform to EN61010-1:2001; EN61010- 2-032:2002; CAT III 600 V, Insulation •
Class II and pollution deg. 2. and EN 61557-7.

This instrument is EN61010-1 certified for Installation Category III (600V). It is •
recommended for use in distribution level and fixed installations, as well as lesser
installations, and not for primary supply lines, overhead lines and cable systems.

Do not exceed the maximum overload limits per function (see specifications) nor the •
limits marked on the instrument itself. Never apply more than 600 V ac rms between
phase to phase or 370 Vac phase to earth ground.

Warnings and Precautions

Before and after hazardous voltage measurements, test the voltage function on a •
known source such as line voltage to determine proper meter functioning.

Inspect the meter, clamps, test leads and accessories before every use. Do not use any •
damaged part.

Never ground yourself when taking measurements. Do not touch exposed circuit •
elements or test probe tips.

Do not operate the instrument in an explosive atmosphere.•
To reduce the risk of fire or electric shock, do not expose this product to rain or moisture.•
The meter is intended only for indoor use. To avoid electrical shock hazard, observe the •

proper safety precautions when working with voltages above 60 VDC, 42.4 Vpk, or 30
VAC rms. These voltage levels pose a potential shock hazard to the user.

Keep your hands/fingers behind the hand/finger barriers (of the meter and the test •
leads) that indicate the limits of safe access of the hand-held part during measurement.

Inspect test leads, connectors, and probes for damaged insulation or exposed metal •
before using the instrument. If any defects are found, replace them immediately.

This Clamp-on current sensor is designed to apply around or remove from un-insulated •
hazardous live conductors. Individual protective equipment must be used if hazardous
live parts of the installation could be accessible.

Exercise extreme caution when: measuring voltage >20 V // current >10 mA // AC power •
line with inductive loads // AC power line during electrical storms // current, when the
fuse blows in a circuit with open circuit voltage >1000 V // servicing CRT equipment.

Remove all test leads before opening the case to change the battery.•
To avoid false readings, which could lead to possible electric shock or personal injury, •

replace the batteries when the low battery indicator
To avoid electric shock hazard, do not use the HOLD mode to determine if a circuit is live. •

Unstable readings will not be captured and displayed.
For accurate measurements after long-term storage in severe environmental conditions, •

wait until the instrument returns to its normal operating conditions.

appears.

5

UNPACKING AND INSPECTION

CAT III 600V MAX

v

V1 V2 V3

C

O

M

1

2

4

3

I1

I2

I3

12V dc
250 mA

+ -

1 2 3 4

Make sure that the instrument has suffered no damage during transit. If you find problems,
contact the carrier. Make sure all the accessories and parts listed below are included. If there is
a problem, contact your dealer.

Description Model Name

Instrument DM-II Plus
External power supply 12VDC DMT-EXTPS
3 clamp meters 1000 A/1V DM-CT-HTA-1000A

(code 1 pcs)
4 cables and alligators for voltage measurement KITENERGY3
1 Software CD DS2.3
Serial Cable C232NG1

➊

➊ RS232 Serial Output

➋

➌

➍

Display

➋

External power supply Plug

➌

Voltage and Current Inputs

➍

(see below)

Keyboard

➎

➎

Voltage Inputs

Phase 1 Input

➊

Phase 2 Input

➋

Phase 3 Input

➌

Phase Neutral Input

➍

Current Inputs

Phase 1 Current Input

➊

Phase 2 Current Input

➋

Phase 3 Current Input

➌

DC Power Supply Input

6

➍

Instrument: Description
Keyboard: Description

ON/OFF: Turning on – turning off / Backlight ON (automatic Off after 5 sec.)
F1, F2, F3, F4: Navigation keys. Specific function appears at the bottom of the screen.
Voltage, Current,

Power, Energy: Go to the corresponding measurement.
MENU: Check and modify parameters
CANCEL: Return to a previous screen. Leave a menu or a sub-menu
ENTER/HOLD: double function key:

ENTER: Confirm the settings.
HOLD: Restrict values from updating. It is disabled when recording or
measuring energy. When enable, recording or measurement cannot
be taken.

SAVE: To save in the instrument memory a Record of “Smp”. It is disabled during a
recording.

START/STOP: Start/stop a recording

Display: Description

Initial Display
When you turn on the DM-II Plus, the display shows this initial screen.

The display is a graphic module with a resolution of128 x 128 pixels (16384 pixels overall).
SN – Serial number of the instrument
VER – Firmware software release
BAUD RATE – Transmission speed through serial I/O

Menu General – Settings (Refer to Fig.1)

Push MENU to access the MENU GENERAL screen.
Push ENTER to save changes, or CANCEL to go back to the previous MENU.
Push F1 or F2 to highlight sub-menus, F3 or F4 to change the settings, and + or – to change the

values.

NOTE: The Menu is not available during a recording or Real Time Energy measurement.

ANALYZER MEMORY – View instrument memory. See Section 6.3.
RESET – Change all settings back to default. Will not erase memory.
ANALYZER CONFIG – Set the type of electrical system under test, fundamental frequency,

current range, clamp type, transformer voltage ratio, and a password. See Section 6.1.
RECORDER CONFIG – Check and modify up to 64 recording parameters, turn on automatic

recording, set the Integration Period value, voltage sag and surge detection feature, and
harmonics detection feature. See Section 6.2.

7

CONTRAST – Change the contrast of the display.
DATE&TIME – Set the date and time. Change the date format.
LANGUAGE – Change the language shown in the display.

Default Settings

The instrument is pre-set with a general configuration that should fit most cases. To adjust
these settings, see Section 6.

ANALYZER CONFIG:

Frequency: 60Hz
Full scale of the clamps: 1000A
Transforming ratio of volt metric transformers: 1
Type of electrical equipment: Four wires
Password: enabled

RECORDER CONFIG:

Start: Manual (once the START/STOP key is Pushed, the recording starts after 1 minute at
00 second mark.)

Stop: Manual
Integration period: 15min
Recording of harmonics: ON
Recording of Sag and Surge: ON
Voltage Reference for Sag and Surge detection: 230V
Upper Limit for Sag and Surge detection: 6%
Lower Limit for Sag and Surge detection: 10%
Selected voltages: V1, V2, V3
Selected voltage harmonics: Thd, 01, 03, 05, 07
Selected currents: I1, I2, I3, IN
Selected current harmonics: Thd, 01, 03, 05, 07
CO-GENERATION: OFF
Powers, Pf and cosϕ selected Pt, P1, P2, and P3

Qti, Q1i, Q2i, Q3i
Qtc, Q1c, Q2c, Q3c
St, S1, S2, S3
Pft, Pf1, Pf2, Pf3
dpft, dpf1, dpf2, dpf3

Energies: Eat, Ea1, Ea2, Ea3

Erit, Eri1, Eri2, Eri3
Erct, Erc1, Erc2, Erc3
Est, Es1, Es2, Es3

SYSTEM CONNECTIONS

Caution: If possible, before connecting the instrument to the electrical equipment to be

tested, take the power supply off the electrical equipment.
Do not measure voltages exceeding these limits or you could endanger your safety, damage

the instrument and/or its components.

OPERATION
Single Phase System (Refer to Fig.2)

Caution: The maximum voltage between L1 and COM inputs is 370V~ phase-earth.

8

Connect the cables and the clamp as shown in fig. 2.1.
In the ANALYZER CONFIG menu, set the SYSTEM to SINGLE PHASE.2.
Set Frequency, Current Range, Clamp type, and TV Ratio.3.
Push ENTER to accept the changes4.
Push CANCEL to return to the last analysis screen display.5.
Push POWER to verify:6.

Direction of the clamp: Active power P must be positive. If it is negative, turn the clamp a.
around.

Phase Sequence:100b.
The value of the Pf of each phase is not lower than 0.4. If Pf is lower than 0.4, check if the c.

phase voltage is associated to the right clamp meter, (V1 is associated to clamp meter #1).

Push VOLTAGE, CURRENT, POWER, or ENERGY key for the analysis type. 7.

To interrupt the real time updating of the displayed values, push the HOLD key.

8. To record the values, see section 6.2.

Three Phase Four Wire System (Refer to Fig.3)

Caution: The maximum voltage between V1, V2, V3 & COM inputs is CAT III 600 V~ phase-

phase 370 V~ phase-earth.

Connect the cables and the clamps as shown in fig.3. 1.
In the ANALYZER CONFIG menu, set the SYSTEM to 3PH4W.2.
Set Frequency, Current Range, Clamp type, and TV Ratio.3.
Push ENTER to accept the changes4.
Push CANCEL to return to the last analysis screen display.5.
Push POWER to verify:6.

Direction of the clamp. Active power P must be positive. If it is negative, turn the clamp a.
around.

Phase Sequence:123b.
The value of the Pf of each phase is not lower than 0.4. If Pf is lower than 0.4, check if the c.

phase voltage is associated to the right clamp meter, (V1 is associated to clamp meter #1,
V2 to clamp meter #2, and V3 to clamp meter #3).

Push VOLTAGE, CURRENT, POWER, or ENERGY key for the analysis type.7.

8. To interrupt the real time updating of the displayed values, push the HOLD key.

9. To record the values, see section 6.

Three Phase Three Wire System (Refer to Fig.4)

Caution: The maximum voltage between V1, V2, V3 and COM (V2) inputs is CAT III 600 V~

phase-phase.

NOTE: The green cable (neutral) is connected with the red cable on phase 2.

Connect the cables and the clamps as shown in fig.4. 1.
In the ANALYZER CONFIG menu, set the SYSTEM to 3PH3W.2.
Set Frequency, Current Range, Clamp type, and TV Ratio.3.
Push ENTER to accept the changes4.
Push POWER to verify:5.

Direction of the clamp. Active power P must be positive. If it is negative, turn the clamp a.
around.

The value of the Pf of each phase is not lower than 0.4. If Pf is lower than 0.4, check if the b.
phase voltage is associated to the right clamp meter, (V12 is associated to clamp meter
#1, V32 to clamp meter #2, and V31 to clamp meter #3).

9

Push CANCEL to return to the last analysis screen display.6.

7. Push VOLTAGE, CURRENT, POWER, or ENERGY key for the analysis type.

8. To interrupt the real time updating of the displayed values, push the HOLD key.

9. To record the values, see section 6.2.

MEASURING PROCEDURES

Caution: For recordings, ALWAYS use the external power supply.

If during a recording the external power supply is de-energized, the internal battery will be
used.

It is recommended that you ALWAYS insert a new set of batteries before a long recording.

Recommended Procedure for a recording

Check and modify the settings. See section 6.1. 1.
Push VOLTAGE, CURRENT, POWER, or ENERGY key for the analysis type.2.
Connect the instrument to the electrical system to be tested.3.
Evaluate the parameter values. See section 5.4.
If you want to record:5.

Decide what to record anda.
Push MENU to adjust settings (see section 2.3 for default settings). See section 6.b.

Connect the External Power Supply.6.

7. Start the recording by Pushing START/STOP.

To Start a Recording

Manually – Push the START/STOP key. When the timer gets to 00 seconds, the recording will

start.

Automatically –

Push MENU.1.
Select RECORDER CONFIG using Up 2.  and Down  keys. Push ENTER.
Push + or – key to change from MAN to AUTO. 3.
Push 4.  to select month, day, year, hour, minute, and second.
Push + or – to set the Start date and time for the recording.5.
Push 6.  to select STOP and push + or – key to change from MAN to AUTO.
Push 7.  to select to month, day, year, hour, minute, and second.
Push + or – to set the Stop date and time for the recording.8.
Push 9.  to select INT PERIOD. Push + or – to change it.
Push 10.  to select HARM REC. Push + or – to turn it ON or OFF.
Push 11.  to select ANOM REC. Push + or – to turn it ON or OFF.
Push CANCEL twice to return to the previous screen.12.
Push START/STOP key. The instrument will remain in stand-by until the set date and time.13.

Note: Make sure to push the START/STOP key or the recording will never start.

During a Recording: (Refer to Fig.5)

Push MENU to see the INFO screen. Push CANCEL to return to the previous screen.

Stop a Recording

If “PASSWORD” is enabled (Section 6), push F1, F4, F3, F2 within 10 seconds to enable the
MENU. Then, push START/STOP to stop the recording) or F2 (for energy measurements).

10

Connection with a PC.

Connect the Instrument to the PC1.

The RS232 cable and the Download Suite software are required to transfer data to a •
PC. The RS232 port is located on the top side of the instrument. There is also a USB
converter kit (RS-USB) available for PCs without RS232 port.

Turn ON the instrument and wait until the Initial screen disappears.•
Connect the RS232 cable with the meter.•
Connect the other end of the cable to the serial output of the PC.•

2. Install the Download Suite Software

Insert the Download Suite CD into the CD-ROM drive of the PC.•
Install the software by following the on-screen instructions.•

3. Operation

Open the program by double-clicking the Download Suite icon.•
Click Work with instrument and then click Next.•
Select DM-II Plus and click Next.•
Select Program device and click Next. Click Next again to open the Programming •

Screen.
Set up the parameters and click OK to start recording•
To download file from the device, click File>New Download or press F2 on your •

keyboard.
Follow the instructions and then click NEXT.•
To start a new virtual instrument, click File>New Virtual Instrument or press F3 on •

your keyboard.
Follow the instructions and then click NEXT.•
Click Visualizations to select digital meter, generic historical graph, or generic •

historical table. Select the parameters you want to visualize and click OK.

Note: Refer to the help in the Download Suite program for more information.

EVALUATING PARAMETER VALUES

Push VOLTAGE, CURRENT, POWER, or ENERGY to see the related screen.
Push SAVE to save a Smp memory record containing the instantaneous values of voltage and

current inputs.
Push ENTER/HOLD key to interrupt the real time updating of the displayed values. Push again

to continue real time display of values.
Please see the appendix for definitions of messages displayed on the instrument.

Voltage (Refer to Fig.6)

Displays in real time the RMS value of AC/DC voltage, the peak and Thd value of all phase
voltages, their waveforms and their harmonics spectrum.

HARM. Mode (Refer to Fig.7)

Push F1 to view the Voltage HARMONIC mode.
Displays the harmonics of the phase or phase-to-phase voltage. The histograms represent the

harmonic content of the voltage under test.
NOTE: The value of the first harmonic h01 (fundamental at 60Hz) is not represented in scale

along with the other harmonics in order to maximize the display of the latter.
When both voltage and current are measured by the instrument and the harmonics become

negative (below horizontal axis), such indication refers to voltage harmonics generated by the
load.

11

Push F1 (ChgP) (for 3 Phase modes only) to show the harmonics of other phase voltages.
Push F2 to display harmonics h01 to h24 (h24 is shown) or h25 to h49 (h49 is shown)).
Push F3 or F4 to select a different harmonic to view.

WAVE Mode (Refer to Fig.8)

Displays the waveform of the phase or phase-to-phase voltage.
Push F2 to view the Voltage WAVE mode.
Push F1 (ChgP) (for 3 Phase modes only) to display values for a different phase

Voltage Symbol Description

V1, V2, V3

V12, V23 or V32, V31 RMS Value of the phase to phase voltages
Vpk1, Vpk2, Vpk3, Vpk12,

Vpk32
h01 to h49 Harmonic 01 to Harmonic 49
ThdV Factor of total harmonic distortion of the voltage
freq Network frequency

Phseq

RMS value of the voltage of phase 1, phase 2, phase 3
respectively

Peak value of the voltage of phase 1, phase 2, phase 3 and
of the phase to phase voltage 12 and 32 respectively

Phase sequence indicator

“123” correct
“132” inverted
“023” null voltage on the black wire
“103” null voltage on the red wire
“120” null voltage on the blue wire
“100” null voltages on the red and blue wires
“020” null voltages on the black and blue wires
“003” null voltages on the black and red wires

Current (Refer to Fig.9)

Displays in real time the RMS value of AC/DC currents, the peak and Thdl value of the 3 phase
currents, their waveforms and their harmonics spectrum.

HARM. Mode (Refer to Fig.10)

Push F1 to view the Current HARMONIC mode.

Displays the harmonics of the phase currents. The histograms represent the harmonic
content of the current under test.

NOTE: The value of the first harmonic h01 (fundamental at 60Hz) is not represented in
scale along with the other harmonics in order to maximize the display of the latter.

When both voltage and current are measured by the instrument and the harmonics
become negative (below horizontal axis), such indication refers to voltage harmonics
generated by the load.

Push F1 (ChgP) (for 3 Phase modes only) to show the harmonics of other phase voltages.
Push F2 to display harmonics h01 to h24 (h24 is shown) or h25 to h49 (h49 is shown)).
Push F3 or F4 to select a different harmonic to view.

12

WAVE Mode (Refer to Fig.11)

Push F2 to view the Current WAVE mode. It shows the waveform of the phase currents.

Push F1 (ChgP) (for 3 Phase modes only) to display values for a different phase.

Current Symbol Description

I1, I2, I3 RMS value of the current of phase 1, phase 2, phase 3 respectively
IN RMS value of the current on the neutral
Ipk1, Ipk2, Ipk3 Peak value of the current of phase 1, phase 2, phase 3 respectively
h01 to h49 Harmonic 01 to harmonic 49
ThdI Total harmonic distortion factor of the current
freq Network frequency

Power (Refer to Fig.12)

Displays in real time the RMS value of AC/DC voltages, their peak and ThdV values, and their
waveforms, the RMS value of AC/DC currents, their peak and Thdl values, and their waveforms.
Also, the instrument calculates and displays the value of the phase and total active powers, the
value of the phase and total reactive and capacitive powers, the value of the phase and total
power factors and the displacement power factor cosϕ.

NOTE: The symbols “i” and “c” stand for reactive powers (Q), power factors (Pf) and cosϕ (dpf)
respectively inductive and capacitive.

Push F1 (ChgP) (for 3 Phase modes only) to display the other power measurements:

Push F1 once to view:•

In the 3PH3W mode – Wattmeter phases 1-2 and 2-3 values ♦

In the 3PH4W mode – phase1, phase2 and phase3 values ♦
Push F1 twice to view Peak Energy Demand mode•
Push F1 three times to view Total 3-phase values•

Peak Energy Demand mode (Refer to Fig.13)

Push F1 three times while on the initial Power screen to view the Peak Energy Demand mode.
This is only available for 3 Phase modes.

Displays the Max Average value of Active Power and the corresponding Energy, or Max
Average value of Apparent Power and the corresponding Energy measured during the last
(or running) recording. The Average value is calculated during the integration Period of the
recording. It also shows the corresponding Active Energy, Peak Date, and Time.

Push F1 (ChgP) (for 3 Phase modes only) to display the other power measurements:

Push F1 once to view Total 3-phase values•
Push F1 twice to view:•

In the 3PH3W mode – Wattmeter phases 1-2 and 2-3 values ♦

In the 3PH4W mode – phase 1, phase 2 and phase 3 values ♦
Push F1 three times to view Peak Energy Demand mode•

Push F3 to display Active Power and Active Energy values.
Push F4 to display Apparent Power and Apparent Energy values.

WAVE Mode (Refer to Fig.14)

Displays the waveform of the phase currents and the phase (or phase-to-phase) voltage.
Push F2 to view the power WAVE mode.
Push F1 (ChgP) (for 3 Phase modes only) to display values for the phase:

In the 3PH3W mode – Wattmeter phases 1-2 and 2-3 values ♦

In the 3PH4W mode – phase 1, phase 2 and phase 3 values ♦

13

Symbol Description

Pt, P1, P2, P3 Values of the active power (total, phase 1, phase 2, and phase 3

P12, P32 (For 3PH3W mode only) Value of the power measured by the Watt-

Qt, Q1, Q2, Q3 Values of the reactive power (total, phase 1, phase 2, and phase 3

Q12, Q32 (For 3PH3W mode only) Value of the power measured by the VAR

St, S1, S2, S3 Values of the apparent power (total, phase 1, phase 2, and phase 3

S12, S32 (For 3PH3W mode only) Value of the power measured by the VA

Pft, pf1, pf2, pf3 Values of the power factors (total, phase 1, phase 2, and phase 3

dPft, dpf1, dpf2, dpf3 Value of the cosϕ (total, phase 1, phase 2, and phase 3 respectively)

respectively)

meter 1-2 and 3-2 respectively

respectively)

meter Va1-2 and 3-2 respectively

respectively)

meter Va1-2 and 3-2 respectively

respectively)

Energy (Refer to Fig.15)

Displays the values of the phase and total active powers, the value of the phase and total
capacitive and inductive reactive powers, the values of the power factors and phase and total
cosϕ. Push F1 (ChgP) (for 3PH4W mode only) to display the other energy measurements:

Push F1 once to view phase 1, phase 2, and phase 3 values•
Push F1 twice to view Total 3-phase values•

Push F2 (Meas) to immediately start/stop a direct energy measurement. The energy counters
will increase proportionally to the active power absorbed by the load.

NOTE:The symbols “i” and “c” stand for reactive powers (Q) and energies (Er) inductive and
capacitive respectively.

Symbol Description

Eat, Ea1, Ea2, Ea3 Values of the total active energy, of phase 1, phase 2,and phase 3

Erit, Eri1, Eri2, Eri3 Values of the total inductive reactive Energy, of phase 1, phase 2,

Erct, Erc1, Erc2, Erc3 Values of the total capacitive reactive Energy, of phase 1, phase

Est, Es1, Es2, Es3 Values of the total Apparent Energy, of phase 1, phase 2, and phase

respectively

and phase 3 respectively

2,and phase 3 respectively

3 respectively

ANALYZER CONFIG, RECORDER CONFIG, AND ANALYZER MEMORY
Analyzer Configuration (Refer to Fig.16)

Push MENU and select ANALYZER CONFIG using the  Up and  Down keys.
SYSTEM = Type of electrical system under test. The input connections must be the same as the

type of system selected:

SINGLE = Single Phase System•
3PH3W = Three Phase System without Neutral (3 wire)•
3PH4W = Three Phase System with Neutral (4 wire)•

FREQUENCY = Fundamental Frequency, between 50Hz to 60Hz.

14

CURRENT RANGE = Must always be equal to the full scale or the scale selected (if multi-scale)
on the clamps used to take the measurement.

CLAMP TYPE = Select the clamp type used to take the measurement. These clamps allow 1000A
and 3000A range:

STD = Standard or Current Transformers (DM-CT-HTA-1000A 1000A)•
FlexEXT: Flexible with External power supply.(ACF-3000 SR)•
FlexINT: Flexible AM-Flex33 (coils directly connected to the instrument inputs).•

TV RATIO = Display value of voltages present on the primary winding of the transformers. Set
the value of the transformers’ windings ratio from 2:1 to 3000:1.

PASSWORD = Disable START/STOP after 5 minutes of inactivity during a recording or direct
energy measurement. Push the password F1, F4, F3, F2 within 10 seconds and then START/STOP
to enable the MENU.

Recorder Configuration

Push MENU and select RECORDER CONFIG using the  Up and  Down keys.
NOTE: The value of the network frequency is automatically selected if at least one phase

voltage (for the Single-phase or 3PH4W mode) or at least one phase-to-phase voltage (for
3PH3W mode) is selected.

If you select a power factor (Pf) or a cosϕ (dPf) for the recording, the instrument will
automatically record their inductive and capacitive values separately.

There are four pages to set parameters for measurement. Push ENTER to display each page:

General Settings (Refer to Fig.17)1.

Select the method of recording: •
START – MANU or AUTO
STOP – MANU or AUTO

Select the Integration Period: •
INT. PERIOD – From 5sec to 60min for instrument memorization of values.

Select to record: •
Voltage and Current Harmonics
HARM REC – ON (record) or OFF
Voltage Sag and Surge
ANOM REC – ON (record) or OFF

VOLTAGE settings with sub-page Harmonics for voltage harmonics settings. (Refer to 2.
Fi g.18 )

Push ENTER from the General Settings page to view this page.

VOLTAGE REC: •
Push  Up or  Down key (F1 or F2) to point to the various voltages. Push F3 (+) to
highlight and select it for voltage recording or Push F4 (-) to deselect it.

HARM. REC: (Refer to Fig.19) •
To view the VOLTAGE HARMONICS sub-page, move  Up or  Down key (F1 or F2)
to point to Pg and Push F3 (+). This will only display if HARM REC is set to ON.
Push F3 (+) to highlight and select it for voltage recording or Push F4 (-) to deselect it.
For example, the harmonics that will be recorded in Fig.21 are Thd, 01, 03, 05, and 07.

Push  Up or  Down key (F1 or F2) to point to Vref. Set the nominal phase to

neutral P-N. Set LIM+ and LIM-.
Vref P-N: the RMS reference value.
LIM+: High Voltage Percent threshold.
LIM-: Low Voltage Percent threshold.

CURRENT settings with sub-page Harmonics for Current harmonics settings. (Refer to 3.
Fig.20)

Push ENTER from the VOLTAGE page to view this page.

15

CURRENT REC: •
Push  Up or  Down key (F1 or F2) to point to the various currents. Push F3 (+) to
highlight and select it for voltage recording or Push F4 (-) to deselect it.

HARM. REC: (Refer to Fig.21) •
To view the CURRENT HARMONICS sub-page, move  Up or  Down key (F1 or F2)
to point to Pg and Push F3 (+). This will only display if HARM REC is set to ON.

Push F3 (+) to highlight and select it for current recording or Push F4 (-) to deselect it.

For example, the harmonics that will be recorded in Fig.21 are Thd, 01, 03, 05, and 07.

POWER and ENERGY settings (Refer to Fig.22)4.

Note. Selecting active /reactive power will automatically select the corresponding
active/reactive energies.

Push ENTER from the CURRENT page to view this page.

CO-GENERATION: ON or OFF (the equipment under test is able to generate energy •
besides absorbing it. If ON, the instrument will record the powers and energies both
absorbed and generated. If OFF, the instrument will only record powers and energies
absorbed.)

POWER: (Refer to Fig.23) •
To view the POWER sub-page, push  Up and  Down key to point to Pg in the
HARM. REC line and Push F3 (+).

ENERGY: (Refer to Fig.24) •
To view the ENERGY sub-page, push  Up and  Down key to point to Pg in the
HARM. REC line and Push F3 (+).

Move the arrow to point to the power that you want to record and Push F3 (+) to

highlight it in black.

Selecting active energies will automatically select the corresponding active powers.

Reactive energies will also automatically select corresponding reactive powers.

Move the arrow to point to the energy that you want to record and Push F3 (+) to

highlight it in black.

Symbols Description Advised Settings

START: MANU The recording of selected parameters will start at

00 seconds after Pushing START/STOP.

STOP: MANU The recording can be interrupted manually by

Pushing START/STOP.

START: AUTOSTOP:
AUTO

The recording of selected values will start/be
interrupted at the set dates and times. In order to
start the recording, you must Push START/STOP to
set the instrument in Stand-by mode.

INT. PERIOD This parameter determines how often in seconds

15 minutes
the values of all selected parameters will be
memorized.

16

Symbols Description Advised Settings

HARM REC. ON = the instrument will record the values of the

selected voltage and current harmonics.

For example: if the following parameters are
selected:

a) Phase Voltage 1 and 2, Thd, Harmonics 1, 3, 5.

b) Phase Current 2 and 3, Thd, Harmonics 3, 5, 7.

The instrument will record:

a) The Phase Voltage 1 and 2, Thd and Harmonics
1, 3, 5 of the Phase Voltage 1 and 2, but will not
record anything about Phase Voltage 3.

b) The Phase Current 2 and 3, Thd and Harmonics
3, 5, 7 of the Phase Current 2 and 3, but will not
record nothing about Phase Current 1.

OFF = the instrument will not record any voltage
or current harmonics.

ANOM REC. ON = the Instrument will record Voltage Sag and

Surge.
OFF = the instrument will not record Voltage Sag

and Surge.

V1, V2, V3 V12, V23
or V32, V31

RMS value of the voltage of phase 1, phase 2,
phase 3 respectively, values of the phase-to-phase
voltages 1-2, 2-3 or 3-2 and 3-1.

Single phase: V1

3 wires: V12 V32

V31

4 wires: V1, V2, V3

Thd, DC, 01...49 Voltage Total Harmonic Distortion, DC Compo-

Thd,01,03,05,07
nent, 01 to 49 Harmonics

Vref (only if ANOM.
REC flag is ON)

RMS reference value for Voltage used in Voltage
Anomalies detection (Voltage Sag and Surge).
The Reference is:

Single phase: 230V

3 wires: 400V

4 wires: 230V

Voltage Phase to Neutral for Single a.
Phase and 3PH4W.

Voltage Phase to Phase for 3PH3Wb.

LIM+, LIM- \
(Only if ANOM. REC
flag is ON)

High and Low Voltage Percent threshold used in
Voltage Anomalies detection (Voltage Sag and
Surge).

I1, I2, I3, IN RMS value of the current of phase 1, phase 2,

phase 3 and neutral respectively

Thd, DC, 01..49 Current Total Harmonic Distortion, DC Compo-

nent, 01 to 49 Harmonics

17

Single phase: 120V

3 wires: 480V

4 wires: 277V

Single phase: I1

3 wires: I1, I2, I3

4 wires: I1, I2, I3, IN

Thd,01,03,05,07

Symbols Description Advised Settings

CO-GENERATION This instrument can record co-generation (the

Pt, P1, P2, P3,

P12, P32

Qti, Q1i, Q2i, Q3i,

Q12i, Q32i

Qtc, Q1c, Q2c,Q3c,

Q12c, Q32c

St, S1, S2, S3,S12,

S32

Pft, Pf1, Pf2, Pf3 Values of the power factors (total, of phase 1,

dpft, dpf1, dpf2,
dpf3

Eat, Ea1, Ea2, Ea3 Values of the active energy (total, of phase 1,

Erit, Eri1, Eri2, Eri3 Values of the inductive reactive energy (total, of

Erct, Erc1, Erc2, Erc3 Values of the capacitive reactive energy (total, of

Est, Es1, Es2, Es3 Values of the Apparent Energy (total, of phase 1,

equipment under test generates energy as well as
absorbing it).
ON = Record the powers and energies both ab­sorbed and generated. If this flag is enabled, only
38 parameters can be selected.
OFF = Record only the powers and energies
absorbed.

Values of the active power (total, of phase 1,
phase 2 and phase 3) (only for 3PH3W) value of
the power measured by the Wattmeter 1-2 and
3-2 respectively

Values of the inductive reactive power (total, of
phase 1, phase 2, phase 3) (only for 3PH3W) value
of the reactive inductive power measured by the
VAR meters 1-2 and 3-2 respectively

Values of the capacitive reactive power (total,
phase 1, phase 2, and phase 3)
(only for 3PH3W) value of the reactive capacitive
power measured by the VA meters 1-2 and 3-2
respectively

Values of the apparent power (total, phase 1,
phase 2,and phase 3)
(only for 3PH3W) value of the power measured
by the VA meters 1-2 and 3-2 respectively

phase 2 and phase 3 respectively)
Values of the cosϕ (total, of phase 1, phase 2 and

phase 3 respectively)

phase 2, phase 3)

phase 1, phase 2 and phase 3)

phase 1, phase 2, phase 3)

phase 2, phase 3)

Single phase: P1

3 wires: Pt

4 wires: Pt, P1, P2,

P3

Single phase: Q1i

Q1c

3 wires: Qti Qtc

4 wires: Qti Q1i

Q2i, Q3iQtc Q1c

Q2c, Q3c

Single phase: S1

3 wires: St

4 wires: St, S1, S2,

S3

Single phase: Pf1

dPf1

3 wires: Pft dPft

4 wires: Pft Pf1 Pf2

Pf3dPft dPf1 dPf2

dPf3

Single phase: Ea1

3 wires: Eat

4 wires: Eat Ea1 Ea2

Ea3

Single phase: Eri1

Erc1

3 wires: Erit Erct

4 wires: Erit Eri1

Eri2 Eri3Erct Erc1

Erc2 Erc3

Single phase: Es1

3 wires: Est

4 wires: Est Es1 Es2

Es3

Analyzer Memory (Refer to Fig.25)

It shows the current instrument memory, the size of the memorized data and space available
for future recordings.

Push MENU, select ANALYZER MEMORY using  Up and  Down keys.
A list of recordings and samples will be displayed with each START – STOP date in the

format “day.month”.

18

The instrument can only store a total of 35 Smp, Rec, and R&a.
Smp – A sample of voltage and current with the parameters.
Rec – A recording without Voltage Sag and Surge detection.
R&a – A recording with Voltage Sag and Surge detection.
DATA SIZE – Amount of data saved (used) in the memory.
REC TIME – Amount of recording time (day.hours format) available, calculated based on

the amount of memory unused and the current parameters set.
Push F3 (LAST) to delete the most recent recording or sample. The instrument will ask

you to confirm. Push ENTER.
Push F4 (ALL) to delete all recordings and samples. The instrument will ask you to

confirm. Push ENTER.

Pushing the SAVE key will cause the instrument to “memorize” the sampled voltage and
current with the parameters (Smp).

Pushing the START key after proper settings will cause the instrument to “record” RMS values
of voltages, currents, corresponding harmonics, active, reactive and apparent powers, power
factors and cosϕ, active, reactive and apparent energies, voltage sag and surge with 8.3ms
resolution (Rec or R&a).

MAINTENANCE AND REPAIR

If there appears to be a malfunction during the operation of the meter, the following steps
should be performed in order to isolate the cause of the problem:

1. Check the batteries. When the battery indicator on the top right-hand corner of the
display appears almost empty ( ), the batteries must be replaced.

2. Review the operating instructions for possible mistakes in operating procedure.

3. Inspect and test the test leads for a broken or intermittent connection.

Except for the replacement of the batteries or test probes, repair of the multimeter should
be performed only by a Factory Authorized Service Center or by other qualified instrument
service personnel. The front panel and case can be cleaned with a mild solution of detergent
and water. Apply sparingly with a damp soft cloth and allow to dry completely before using.
Do not use aromatic hydrocarbons or chlorinated solvents for cleaning.

Battery Replacement

 Warning

To prevent electrical shock or meter damage, disconnect the meter’s test leads from any
circuit and the meter, then turn the meter off before removing the battery cover. Battery
replacement should be performed in a clean environment and with appropriate care taken to
avoid contaminating the meter’s interior components.

1. Remove the screws and lift the battery cover.

2. Replace the batteries with the same type, 1.5 V D. Note polarity of the batteries.

3. Replace the battery cover and screws

TECHNICAL SPECIFICATIONS
Features

The accuracy is stated as [percentage of the reading ± number of digits]. It refers to the
following atmospheric conditions: temperature 23°C ± 1°C (73°F ± 2°F ) with relative humidity
< 75%.

19

Voltage Measurement (Auto ranging)

Range Accuracy Resolution Input Impedance

15 – 310V

±(0.5%+2digit)

310 – 600V 0.4V

0.2V 300kΩ(phase-neutral)
600kΩ (phase-phase)

Voltage Anomalies Detection (Manual Selection of Range)

Voltage

Range Accuracy Resolution Input Impedance

15 – 310V

310 – 600 0.4V

±(0.5%+2digit)

0.2V 300kΩ (phase-neutral)
600kΩ (phase-phase)

Time

Accuracy (ref. to 60Hz) Resolution

±8.33ms (½ period of fundamental) 8.33ms (½ period of fundamental)

Current measurement (DM-II Plus only)

Range Accuracy Resolution Input Impedance

0.005-0.26V

0.26-1V 0.0004V

±(0.5%+2digit)

0.0001V
100kΩ 5V

Protection against

Current measurement (Using DM-CT-HTA)

Range Accuracy Resolution Protection against overloads

5 to 1000 A ±(1.5% of range) 0.1 A 600 V

Minimal Current measurable is equal to 1.5% of Clamp Full Scale

Current measurement (Using ACF-3000 SR)

Range Accuracy Resolution Protection against overloads

15 to 3000 A ±(1.5% of range) 0.1 A 600 V

Minimal Current measurable is equal to 1.5% of Clamp Full Scale

overloads

20

Power measurement (cosϕ: 0.5c[positive] – 0.5i[negative])

Value Ranges Accuracy Resolution

Active power 0 – 999.9W

1kW – 999.9kW

1MW – 999.9MW

Reactive power 0 – 999.9VAR

1kVAR – 999.9kVAR

1MVAR – 999.9MVAR

Apparent power 0 – 999.9VA

1kVA – 999.9kVA

±(1.5%+2digit)

1MVA – 999.9MVA

Active energy 0 – 999.9Wh

1kWh – 999.9kWh

1MWh – 999.9MWh

Reactive energy 0 – 999.9VARh

1kVARh – 999.9kVARh

1MVARh – 999.9MVARh

Cosϕ Measurement

Cosϕ Resolution Accuracy (expressed in degrees)

0 to 0.20

0.21 to 0.50 0.7

0.01

0.51 to 0.80 1

0.1W

0.1kW

0.1MW

0.1VAR

0.1kVAR

0.1MVAR

0.1VA

0.1kVA

0.1MVA

0.1Wh

0.1kWh

0.1MWh

0.1VARh

0.1kVARh

0.1MVARh

0.6

Measurement of Harmonics

Voltage

Range Accuracy Resolution

DC – 25h
26h – 33h
34h – 49h

±(5.0%+2digit)
±(10.0%+2digit)
±(15.0%+2digit)

The voltage harmonics will be null under the following threshold:

- DC: if <1V or <2% of 1st harmonic

- 1st harmonic: if <2V

- 2nd to 49th: if <1V or <2% 1st harmonic

Current

Range Accuracy Resolution

DC – 25h
26h – 33h
34h – 49h

±(5.0%+2digit)
±(10.0%+2digit)
±(15.0%+2digit)

The current harmonics will be null under the following threshold:

- DC: if <2% of 1st harmonic or < 0.2% of clamp full scale

- 1st harmonic: if < 0.2% of clamp full scale

- 2nd to 49th: if <2% 1st harmonic or < 0.2% of clamp full scale
Setting the FLEX option the DC component will be ignored.

21

0.1V

0.1A

Frequency Measurement

Instrument set to 50Hz

Range Resolution Accuracy

47 to 53 0.1Hz ±(1.0% + 1digit)

Instrument set to 60Hz

Range Resolution Accuracy

57 to 63.6 0.1Hz ±(1.0% + 1digit)

Temperature drift

Temperature drift: 0.1 x accuracy/°C (32°F)

Safety

The instrument complies to the standards: EN 61010-1 :2001
Insulation: Class II
Pollution: 2
Over-voltage category: CAT III 370V~ (Phase-Earth)
CAT III 600V~ (Phase-Phase)
Clamps: IEC 61010-2-032 Ed. 2.0
Phase Sequence Detection: EN 61557-7:2007

Mechanical Features

Dimensions: 444.5(L) x 273.05(W) x 190.5(H) mm (17.50 (L) x 10.75 (W) x 7.50 (H))
Weight: 11.5 Lb (5.2kg)
Internal power supply: 6 batteries 1.5V D size (Alkaline) NEDA 13A, IEC L20R.

Do not use rechargeable batteries.
Battery Life: 22 hours
External power supply:
Input:

Voltage(V): 100–240V; Phase: 1; Frequency(Hz): 50–60Hz; Current(A): 0.25A; Power(VA):
12–17 VA

DC Output:

Voltage(V): 12V; Current(A): 0.42A

Use only Amprobe power supply Adapter code DMTEXTPS. This power supply will not charge
the internal supply batteries.

Display: dot matrix with backlight
Resolution: 128 x 128 dots (16384 dots)
Dot size: 0.5mm x 0.5mm
Visible area: 73mm x 73mm (2.9 x 2.9 in.)
No. of samples per period: 128
Clamp:

Opening: 53 mm (2.15 in.)
Maximum diameter of the cable: 50 mm (2.00 in.)

22

Environment

Operating Conditions

Reference temperature: 23°C ± 1°C (73°F ± 2°F)
Operating temperature: 0°C to 50°C (32°F to 122°F)
Relative humidity: <70%
Storage temperature: -10°C to 60°C (14°F to 140°F)
Storage humidity: <80%
Location: Indoor operation, < 2000 m
Safety: LVD Meets EN61010-1:2001 and EN61010-2-032:2002, CAT III - 600V, class II and

pollution degree 2 and EN61557-1,7.
 EMC: EN 61326-1:2006 This product complies with requirements of the following

European Community Directives: 2004/108/EC (Electromagnetic Compatibility) and 2006/95/
EC (Low Voltage) as amended by 93/68/EEC (CE Marking). However, electrical noise or intense
electromagnetic fields in the vicinity of the equipment may disturb the measurement circuit.
Measuring instruments will also respond to unwanted signals that may be present within the
measurement circuit. Users should exercise care and take appropriate precautions to avoid
misleading results when making measurements in the presence of electronic interference.

APPENDIX
Messages Displayed

Message Description Advices

AUTONOM: Available memory autonomy for the

CLEAR ALL? (Enter) Trying to erase all the recordings Push CANCEL to keep all

CLEAR LAST? (Enter) Trying to erase the last recording Push CANCEL to keep the

Data saved The data has been saved

DATA SIZE: Amount of stored data

HOLD The HOLD function has been activated,

Password: At least 5 minutes has passed since the

Invalid date The entered date is not correct Check the date and date

Energy Measuring The instrument is taking an energy

Memory Full The memory of the instrument is full Transfer recordings to a PC

No ext supply! A recording has been started without

recording affected

values will not be updated.

last activity of the instrument

measurement

connecting the external power supply

recordings, Push ENTER
to confirm and erase all
recordings

last recording, Push ENTER
to confirm and erase the
last recording

Push HOLD to disable this
function

Insert the password: F1, F4,
F3, F2

format
Push F1 to stop

and then clear the instru­ment memory

Connect the external
power supply and Push
START again.

23

Message Description Advices

No parameter se­lected

A recording has been started without
selecting values to be recorded

Push START/STOP, and se­lect at least one value from
the MENU

No Phase selected Voltage and/or current harmonics have

been selected and the corresponding

Select at least one phase

voltage and/or current
flag has been enabled (HARMONICS
ON) but no phase voltage or current has
been selected

PASSWORD ERROR The password entered is wrong Insert the password: F1, F4,

F3, F2

PASSWORD OK The password is correct
Please wait The instrument is waiting for the record-

ing to start

Recording The instrument is recording
Too many param More than 63 parameters have been

Deselect parameters
selected (harmonics included) or more
than 38 parameters with COGENERA­TION Flag enabled

Too many record The quantity of recorded data + Smp

exceeds the maximum allowed (35)

Transfer recordings to a PC

and then clear the instru-

ment memory

ERR: SEQ The Phase Sequence is wrong. Check the Phase Sequence

connection.

ERR: P- The active powers on the right side of

the message are negative

Check if the clamps are

properly connected, unless

co-generation is involved

ERR: SEQ & P- The active powers on the right side of

the message are negative and the Phase
Sequence is wrong.

Check if the clamps are

properly connected / check

the Phase Sequence con-

nection, unless co-genera-

tion is involved

ERR: CONNECTION The Voltage inputs are not connected

correctly.

Check the Voltage connec-

tions (see Physical Connec-

tions, Page X8)

Error Vref A Voltage reference was selected that is

not compatible with voltage input.

Check Voltage Reference

set in RECORDER CONFIG

in MENU

Error1 to Error 5 The instrument memory is damaged. Contact Amprobe for as-

sistance

24

Recordable Parameters Symbols

Symbol Description

V1, V2, V3 RMS value of the voltage of phase 1, phase 2, phase 3 respectively
V12, V23 V31 Value of phase to phase voltages
I1, I2, I3 RMS value of the current of phase 1, phase 2, phase 3 respectively
IN RMS value of the current of the neutral
DC Continuous component of voltage or current
h01 to h49 Harmonic 01 to Harmonic 49 of voltage or current
ThdV Factor of total harmonic distortion of the voltage
ThdI Factor of total harmonic distortion of the current

Powers, Pf and cosϕ

Pt, P1, P2, P3 Values of the total active power, of phase 1, phase 2, phase 3

P12, P32 (only for 3 wires measurement) Value of the power measured by

Qt, Q1, Q2, Q3 Values of the total reactive power, of phase 1, phase 2, phase 3

Q12, Q32 (only for 3 wires measurement) Value of the power measured by

St, S1, S2, S3 Values of the total apparent power, of phase 1, phase 2, phase 3

S12, S32 (only for 3 wires measurement) Value of the power measured by

Pft, pf1, pf2, pf3 Value of the total power factors, power factors of phase 1, phase

dPft, dpf1, dpf2, dpf3 Values of the total cos, of phase 1, phase 2, phase 3 respectively

Energies

Eat, Ea1, Ea2, Ea3 Values of the total active energy, of phase 1, phase 2, phase 3

Erit, Eri1, Eri2, Eri3 Values of the total inductive reactive Energy, of phase 1, phase 2,

Erct, Erc1, Erc2, Erc3 Values of the total capacitive reactive Energy, of phase 1, phase 2,

Est, Es1, Es2, Es3 Values of the total Apparent Energy, of phase 1, phase 2, phase 3

respectively

the Wattmeter 1-2 and 3-2 respectively

respectively

the VARmeter 1-2 and 3-2 respectively

respectively

the VAmeter 1-2 and 3-2 respectively

2, phase 3 respectively

respectively

phase 3 respectively

phase 3 respectively

respectively

25

B=+/- 3.0275

Temperature (E3) Percent age Operating Error

Type of Test

Test in accordance with

Relevant parts of IEC 61557

Voltage(E2)

Infuence Of Supply

Designated Code

)) B Part 1, 4.1

2

3

+ E

2

2

+ E

2

1

Reference conditions or

1.13 0 0 1.65

A (-)90˚ (+)90˚ E1 Batter y Supply E2 0˚C 35˚C 50˚C E3 (B)

Reading

Value

A 49 50 51 59 60 61 0˚C 50˚C E3 (B)

Reading

Value

Intrinsic Error Influence of Frequency Temperature (E3) Percentage Operating Error

specified operating range

Intrinsic Error Position(E1)

Input

Value

Input

Value

Intrinsic Error Reference conditions A Part 1, 6.1 R

Position Reference position ±90˚ E1 Par t 1, 4.2 R

Supply Voltage E2 Part 1, 4.2, 4.3 R

Temperature 0˚C and 50˚C E3 Part 1, 4.2 T

Range [V] [V] % % 6. 2V 8.5V % % %

V1 263 26 4 0.38 264 264 0 264 264 0

V2 263 265 0.76 265 265 0 265 265 0

V3 263 267 1.13 267 267 0 267 267 0

V13 456 460 0.88 460 460 0 460 460 0

Operating Error: Voltage Measurement

V12 456 459 0.65 459 459 0 459 459 0

V23 400 399.9 406 408.4 1.65

V23 456 461 1.1 4 61 461 0 4 61 461 0

V12 400 398.5 404.4 407 1.1

V13 400 400.2 406.6 408.9 1.65

Operating Error: Current Measurement

Range [V] [A] % % %

I1 1.0057 1010 0.43 860 1010 840 926 999 853

I2 1.0057 1010 0.43 860 1010 840 926 999 853

I3 1.0057 1010 0.43 860 1010 840 926 999 853

In 1.0057 3020 2563 1010 2503 2785 2996 2554

Intrinsic Error Of Influence quantity

Notes:

Operating Error B=±( |A| + 1.15 X √(E

A = intrinsic error En = Variations R = routine test T = typ e test B[%] = ±(B / fiducial value) X 100%

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Fig. 1

Fig. 2

Fig. 3

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Fig. 4

Fig. 5

Fig. 7

Fig. 6

Fig. 8

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