Meco PHT4545 User manual

4545 : 28-09-2012

TABLE OF CONTENTS

I. FEATURES ........................................................................ 2

II. PANEL DESCRIPTION ..................................................... 3

III. OPERATING INSTRUCTIONS ......................................... 6

lll.1. Measurenment of ACA ............................................ 6

lll.1.1. True RMS value of AC Current ................................ 7

lll.1.2. HOLD, MAX, MIN and.PEAKofAC Current ............. 7

lll.1.3. Harmonics of AC Current in Magnitude (V) ............ 8

lll.1.4. Harmonics ofAC Current in Percentage (%) ........... 8

lll.1.5. Total Harmonic Distortion (% THD-F) ...................... 9

lll.1.6. Crest Factor(C.F.) .................................................. 10

lll.2. Measurement of AC Voltage ............................................ 11

lll.2.1. True RMS value of AC Voltage ............................. 11

lll.2.3. HOLD, MAX, MIN and PEAK value of AC Voltage 12

lll.2.3. Harmonics of AC Voltage in Magnitude (V)...........13

lll.2.4. Harmonics of AC Voltage in Percentage (%) ........14

lll.2.5. Total Harmonics Distortion (% THD-F) .................. 14

lll.2.6. Crest Factor (C.F.) ................................................. 15

lll.3. Measurement of Single Phase AC Power Quality ........... 16

lll.3.1. Single Phase AC Watt and Power Factor (PF) ..... 17

lll.3.2. Apparent Power (VA, KVA) and

Reactive Power (VAR, KVAR) ............................... 17

lll.3.3. Phase Angle (u) ..................................................... 18

lll.3.4. Horse Power (H.P) ................................................ 18

lll.3.5. Energy (WH, or KWH) ........................................... 19

lll.4 Measurement ot the Balanced 3 Phase AC Power

Quality .................................................................... 20

lll.5 Measurement of the Balanced 3 Phase Sequence

lll.6 Measurement of Resistance and Continuity with

Beeper ................................................................... 23

IV. SET THE CT RATIO ........................................................ 24

V. DISABLE AUTO-POWER-OFF ....................................... 24

Vl. SPECIFICATIONS (230C±50C) ........................................ 25

Vll. BATTERY REPLACEMENT ........................................... 30

Vlll. MAINTENANCE & CLEANING ....................................... 31

EN 61010-2-032

CAT III 600V

Pollution Degree 2

Definition of Symbols :

Caution : Refer to Accompanying Documents

Caution : Risk of Electric Shock

Double Insulation

Over-voltage Category I (CAT I) :

Equipment for connection to circuits in which measurps are taken

to limit the transient over-voltages to an appropriate low level.

Over-voltage Category II (CAT II) :

Energy-consuming equipment to be supplied from the fixed

installation.

Over-voltage Category III (CAT III) :

Equipment in fixed installations.

WARNING :

If the clamp meter is used in a manner Not specified by

the manufacturer, the protection Provided by the clamp

meter may be impaired.

Certificate of Calibration

We hereby certify that this product has been

calibrated and found to be in accordance

with the applicable SPECIFICATIONS and

STANDARDS.

Accuracies of the standard equipment used in

this calibration are traceable to the National

Standards.

SR. NO. :

CHECKED BY :

DATE :

MODEL NO. :

MECO METERS PVT. LTD.

Plot No. EL-60, MIDC Electronic Zone,

TTC Industrial Area, Mahape,

Navi Mumbai - 400710 (INDIA)

Tel : 0091-22-27673311-16, 27673300 (Board)

Fax : 0091-22-27673310, 27673330

E-mail : [email protected]

Web : www.mecoinst.com

AC CLAMP-ON

POWER

AND

HARMONICS

TESTER

MODEL :

PHT4545

USER MANUAL

4545 : 28-09-2012

1. FEATURES

a. Active (W, KW, HP), reactive (VAR, KVAR) and

apparent (VA, KVA) power.

b. Power factor (PF), phase angle (u), and energy

(WH, KWH).

c. Non-interrupted AC current harmonic analysis.

d. 1 to 99th order of harmonics at 2.0% basic accuracy.

e. Total harmonic distortion (%THD-F) and crest factor

(CF).

f. True RMS measurement of V and A at 0.5% basic

accuracy.

g. Fast peak function (39ms for 50 Hz, 33ms for 60Hz).

h. Resistance and Continuity with Beeper Measurement

of balanced 3f power.

j. Measurement of balanced 3fsequence.

k. Programmable CT ratio from 1 to 250.

l. Max, Min and data hold functions.

m. Active power in H.P.

n. Auto power off function in 30 minutes.

10. Secondary Digits

These digits display secondary function of measurement,

such as power factor, reactive power, and the order of

harmonics.

11. Symbols of Units

These are unit symbols for Current, voltage, and power.

The nominal frequency (50 or 60 Hz) of measurement is

displayed above these unit symbols.

12. V Input Terminal

This terminal is used as input for voltage and power

measurements.

13. COM Terminal

This terminal is used as common reference input.

14. Frequency Select Function

Press this button to select nominal frequency (50 or 60Hz)

15. tbutton

It is used to decrement the order of hamonics or CT ratio.

Holding this button when turning on the power will fix the

measuring frequency at 50 or 60 Hz

16. Symbol of Current Transformer (CT)

If the CT ratio is not 1, this symbol will be displayed in LCD.

1. Transformer Jaw Assembly

This is used to pick up current signal. To measure AC current

or Power/Watt, the jaw must enclose conductor completely.

2. Transformer Trigger

Press the trigger to open the jaw.

3. Rotary Switch

This is used to turn the power on and select measurement

of current, voltage or power.

4. MAX/MIN/HOLD/PEAK

In the measurement of A, or V, press this button to perform

function of MAXIMUM, MINIMUM, HOLD or PEAK.

If this button is hold when turning on power, the tester can

perform measurement of phase sequence instead of phase

angle in the balanced 3fpower system.

5. s3fButton

This button is used to increment order of harmonics or CT

ratio. When the rotary switch is set at W position, press this

button to select measurement of balanced 3fpower instead

of single-phase power.

6. FUNC Button

In the measurement of A, or V, press this button to select

function of harmonics, THD-F, or CF. In the measurement of

W with PF, press this button to select function of VA, VAR,

phase angle, HP, or energy (KWH).

7. LCD

This is a 4+4 digit Liquid Crystal Display. Function symbols,

units, sign, decimal points, low battery symbols, max, min

symbols, peak and harmonic symbols are included.

8. Symbols Those are symbols of selected functions such as,

Hamonic, PEAK, MAX, MIN or HOLD.

9. Primary Digits

The primary digits display the main function such as voltage,

current, wattage, and apparent power.

2. PANEL DESCRIPTION

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10 11

3. OPERATING INSTRUCTIONS

3.1 Measurement of ACA

NOTE:

1. Set the rotary switch at the A position.

2. The unit will measure and display signal frequency. If users

wish to fixed the frquency 50 or 60, users can hold the t

button when turning on the power.

3. If the peak value of the input AC current is greater than the

maximum value of the range, then symbol of OL will be

displayed.

NOTE : Whenever the rotary switch is set at new position, the CT

ratio will be displayed first. If the CT ratio is not 1, a symbol " "

will be shown in the LCD display for the measurment of A. The

reading of current shown in LCD is equal to the true RMS value

measured by the tester multiplied by CT ratio (A LCD = ARMS x CT).

3. 1.3. Harmonics of AC Current in Magnitude

a. Set the rotary switch at A. Then select the conect frequency

by pressing the 50/60 Hz button.

b. Press the trigger to open the jaw and fully enclose the

conductor to be measured.

c. Press the FUNC button once. The symbols of “Harmonic”

and “NO.” will be shown in LCD. The n-th order (1 to 99)

will be shown in the upper row digits.

d. Press the sor tbutton to increment or decrement the

order of harmonics in the upper row digits. The number

will roll over when the maximum (99) or minimum (1) is

reached.

3. 1.4. Harmonics of AC Current in Percentage (%)

a. Set the rotary switch at “A” position. Then select the correct

frequency by pressing the 50/60 Hz button,

b. Press the trigger to open the jaw and fully enclose the

conductor to be measured.

c. Press the FUNC button twice. The symbols of “Harmonic”

and “NO.” will be shown in LCD. The n-th order (1 to 99)

will be shown in the upper row digits.

WARNING : Make sure that all the test leads are disconnected

from the meter's terminals for current measurement.

3. 1.1. True RMS value of AC Current

a. Set the rotary switch at A Then select the correct frequency

by pressing the 50/60 Hz button.

b. Press the trigger to open the jaw and fully enclose the

conductor to be measured.

c. Read the measured value from the LCD display.

3. 1.2. HOLD, MAX, MIN and PEAK of AC Current.

a. Set the rotary switch at A. Then select the correct frequency

by pressing the 50/60 Hz button.

b. Press the trigger to open the jaw and fully endose the

conductor to be measured.

c. The measured value from the LCD display. If the HQLD

button is pressed, the symbol of “HOLD”, “MAX”, “MIN” or

“PEAK” will be shown in LCD alternatively. And the value

of the HOLD, MAX, MIN or PEAK function will be displayed

in LCD alternatively.

d. To return to the display of current measurement, hold the

HOLD button for more than 2 seconds.

NOTE : The PEAK function displays the maximum value of the

input waveform. The sampling time for the PEAK function is

39ms (50Hz) or 33ms (60Hz). The HOLD, MAX, or MIN function

displays the true RMS value.

d. Press the sor tbutton to increment or decrement the

order of harmonics in the upper row digits. The number

will roll over when the maximum (99) or minimum (1) is

reached.

3. 1.5. Total Harmonic Distortion (% THD-F)

a. Set the rotary switch at A. Then select the correct frequency

by pressing the 50/60 Hz button.

b. Press the trigger to open the jaw and fully enclose the

conductor to be measured.

c. Press the FUNC button three times. The symbols of “THD”

and “%” will be shown in LCD. The total harmonic distortion

in percentage with respect to the fundamental frequency

(50 or 60 Hz) will be measured and displayed.

%THD-F = ( (V22+ V32+ ... V492+ V502) / V1) * 100

Where,

V1: magnitude at the 50 or 60 Hz

V2: magnitude at the second harmonics

...

V50: magnitude at the 99-th harmonics.

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12 13

3. 1.6. Crest Factor (C.F.)

a. Set the rotary switch at A. Then select the correct frequency

by pressing the 50/60 Hz button.

b. Press the trigger to open the jaw and fully enclose the

conductor to be measured.

c. Press the FUNC button four times. The symbols of C.F.

will be shown in LCD. The crest factor (C.F.) will be

measured and displayed. The crest factor (CF) is defined

as following:

C.F. = (peak value) / (RMS value)

3.2 Measurement of AC Voltage

NOTE :

1. The unit will measure and display signal frequency. If users

wish to fixed the frquency at 50 or 60, users can hold the t

button when turning on the power.

2. If the peak value of the input AC voltage is greater than the

maximum value of the range, then symbol of OL will be

displayed.

NOTE : Whenever the rotary switch is set at a new position, the

CT ratio will be displayed first. If the CT ratio is not 1, a symbol

of “ ” will be shown in the LCD display.

WARNING :

Maximum input for ACV is 600. Do not attempt to take any voltage

measurement that exceeds the limits. Exceeding the limits could

cause electrical shock and damage to the clamp meter.

3. 2.1. True RMS value of AC Voltage

a. Set the rotary switch at position V. Then select the correct

fundamental frequency by pressing the 50/60 Hz button.

b. Insert the test leads into the input jack. Connect the test

prods of the test leads in PARALLEL to the circuit to be

measured.

c. Read the measured RMS value from the LCD display.

3. 2.2. HOLD, MAX, MIN and PEAK value of AC Voltage

a. Set the rotary switch at position V. Then select the correct

fundamental frequency by pressing the 50/60 Hz button.

b. Insert the test leads into the input jack. Connect the test

prods of the test leads in PARALLEL to the circuit to be

measured.

c. The measured value is displayed in the LCD display. If the

HOLD button is pressed, the symbol of “HOLD”, “MAX”,

“MIN” or “PEAK” will be shown in LCD alternatively. And

the value of the HOLD, MAX, MIN or PEAK function will be

displayed in LCD alternatively.

d. To return to the display of current measurement, hold the

HOLD button for more than 2 seconds.

NOTE : The PEAK function displays the maximum value of the

input wavefom.The sampling time for the PEAK function is 39ms

(50Hz) or 33ms (60Hz). The HOLD, MAX, or MIN function displays

the true RMS value.

3. 2.3. Harmonics of AC Voltage in Magnitude (V)

a. Set the rotary switch at position V. Then select the correct

fundamental frequency by pressing the 50/60 Hz button.

b. Insert the test leads into the input jack. Connect the test

prods of the test leads in PARALLEL to the circuit to be

measured.

c. Press the FUNC button once. The symbols of “Harmonic”

and “NO” will be shown in LCD. The n-th order (1 to 99)

will be shown in the upper row digits.

d. Press the sor tbutton to increment or decrement the

order of harmonics in the upper row digits. The number

will roll over when the maximum (99) or minimum (1) is

reached.

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3. 2.4. Harmonics of AC Vollage in Percentage (%)

a. Set the rotary switch at position V. Then select the correct

fundamental frequency by pressing the 50/60 Hz button.

b. Insert the test leads into the input jack. Connect the test

prods of the test leads in PARALLEL to the circuit to be

measured.

c. Press the FUNC button twice. The symbols of "Hamonic"

and "NO" will be shown in LCD. The n-th order (1 to 99)

will be shown in the upper row digits.

d. Press the sor tbutton to increment or decrement the

order of harmonics in the upper row digits. The number

will roll over when the maximum (99) or minimun (1) is

reached.

3. 2.5. Total Harmonic Distortion (% THD-F)

a. Set the rotary switch at position V. Then select the correct

fundamental frequency by pressing the 50/60 Hz button.

b. Insert the test leads into the input jack. Connect the test

prod’s of the test leads in PARALLEL to the circuit to be

measured.

18 19

16 17

c. Press the FUNC button three times. The symbols of “THD”

and “%” will be shown in LCD. The total harmonic distortion

in percentage with respect to the fundamental frequency

(50 or 60 Hz) will be measured and displayed.

%THD-F=( (V22+V32+ ... +V492+V502)/V1) * 100

Where,

V1: magnitude at the 50 or 60 Hz

V2: magnitude at the second harmonics

...

V50: magnitude at the 50-th harmonics.

3. 2.6. Crest Factor (C.F.)

a. Set the rotary switch at posilion V. Then select the correct

fundamental frequency by pressing the 50/60 Hz button.

b. Insert the test leads into the input jack. Connect the test

prods of the test leads in PARALLEL to the circuit to be

measured.

c. Press the FUNC button four times. The symbols of C.F.

will be shown in LCD. The crest factor (C.F.) will be

measured and displayed. The crest factor (CF) is defined

as following:

C.F. (Crest Factor) = (Peak Value) / (RMS Value)

3. 3 Measurement of Single Phase AC Power Quality

NOTE :

1. Set the rotary switch at the W position.

2. Select the correct fundamental frequency of current and

voltage by pressing the 50/60 Hz button

3. If the peak value of the input AC current or AC voltage is

greater than the maximum value of the range, then symbol

of OL will be displayed.

NOTE :

Whenever the rotary switch is set at a new position, the CT ratio

will be displayed first. If the CT ratio is not 1, a symbol of “ ”

will be shown in the LCD display for the measurement of W. The

reading of current shown in LCD is equal to the W, VA, and VAR

values measured by the tester multiplied by CT ratio (WLCD= W x

CT, VALCD= VA x CT, VARLCD= VAR x CT, WHLCD = WH x CT).

3. 3.1 Single Phase AC Watt and Power Factor (PF)

a. Connect the test leads to the voltage source in parallel

with the load.

b. Clamp on one of the wire to the load. The current should

flow frcm the front of the tester to the side of the battery

cover.

c. Set the rotary switch at the W position.

d. Read the values of W or KW and PF shown on LCD. The

unit of watt is automatically scaled.

3. 3.2. Apparent Power (VA, KVA) and Reactive Power (VAR,

KVAR)

a. Connect the test leads to the voltage source in parallel

wilh the load.

b. Clamp on one of the wire to the load. The current should

flow from the front of the tester to the side of the battery

cover.

c. Set the rotary switch at the W position.

d. The value of W, or KW and PF will be displayed in LCD.

e. Press the FUNC button once to display VA or KVA and

VAR or KVAR. The unit is automatically scaled.

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20 21

3. 3.3. Phase Angle (u)

a. Connect the test leads to the voltage source in parallel

with the load.

b. Clamp on one of the wire to the laad. The current should

flow from the front of the tester to the side of the battery

cover.

c. Set the rotary switch at the W position.

e. The value of W, or KW will be displayed in LCD. The unit

of watt is automatically scaled.

f. Press the FUNC button three times to display phase angle

(u) from 1800to +1800.

NOTE : To display phase angle (u) from 0 to 360, hold the s

button, then turn the power on. Once the tester is turned on in this

way, the tester will display phase angle from 0 to 3600(when phase

angle function is selected).

3. 3.4. Horse Power (H.P.)

a. Connect the test leads to the voltage source in parallel

with the load.

b. Clamp on one of the wire to the load. The current should

flow from the front of the tester to the side of the battery

cover.

c. Set the rotary switch at the W position.

d. The vaiue of W, or KW and PF will be displayed in LCD.

The unit of watt is automatically scaled.

e. Press the FUNC button four times to display power in the

unit of HP.

3. 3.5. Energy (WH, or KWH)

a. Connect the test leads to the voltage source in parallel

with the load.

b. Clamp on one of the wire to the load. The current should

flow from the front of the tester to the side of the battery

cover.

c. Set the rotary switch at the W position.

d. The values of W, or KW and PF will be displayed in LCD.

The unit of watt is automatically scaled.

e. Press the FUNC button five times. A character of H is

displayed in front of reading to indicate energy (WH or

KWH).

3.4 Measurement of the Balanced 3 Phase AC Power Quality

a. Connect the black test lead to the voltage L3, and connect

the red test lead to L1.

b. Clamp on one of the wire to L2. The cun ent should flow

from the front of the tester to the side of the battery cover.

c. Set the rotary switch at the W position.

d. Press the s3fbutton to select balanced 3f. Symbols

of ‘‘3f3W, 3f4W and BAL” will be shown in LCD.

e. The value of W or KW and PF will be displayed in LCD.

The unit of watt is automatically scaled.

f. If the FUNC button is pressed again, the apparent power

(VA) and reactive power (VAR) will be shown in LCD.

g. To measure the phase angle and phase sequence, users

can press the FUNC button again.

h. If the FUNC button is pressed again, the true power in the

unit of Horse Power (HP) will be shown in LCD.

i. To measure the energy (WH), users can press the FUNC

button again. The current energy (WH or KWH) will be

shown in LCD.

NOTE : Users can also obtain the measurements of VA, VAR,

Phase Angle, phase sequence, HP, and energy (WH) for balanced

3fpower system. The operations are the same as the

measurements for the single-phase power system.

NOTE : The reading of current shown in LCD is equal to the

W, VA, and VAR value measured by the tester multiplied by CT

ratio (WLCD= W x CT, VALCD= VA x CT, VARLCD= VAR x CT,

WHLCD= WH x CT)

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3.5 Measurement of the Balanced 3 Phase Sequence a. Set the rotary switch at the W position

b. Connect the black test lead to the voltage L3, and connect

the red test lead to L1.

c. Clamp on to the wire of L2. The current should flow from

the front of the tester to the side of the battery cover.

d. Press the s3fbutton to select 3 phase power system. A

symbol of 3fwill be shown in LCD.

e. Press the FUNC button to select phase angle function.

The LCD will show L123 to indicate the clockwise sequence

in the upper row digits of LCD. Or the LCD will show L132

to indicate counter clockwise sequence.

3.6 Measurement of Resistance and Continuity with Beeper

a. Set the rotary switch at V

b. Insert the test leads into the input jack.

c. Connect the test prods of the test leads to the two ends of

the resistor or circuit to be measured.

d. Read the measured value from the LCD display.

e. If the resistance is lower than 50 V, a beeping sound shall

be heard.

4. SET THE CT RATlO

To set the CT ratio, hold the FUNC button, and then turn the

power on. A symbol of ‘‘ ’’ will be shown in LCD. The default

value of CT is 1. To change the CT ratio, users can press the

sor tbutton to increment or decrement the value by

1, Holding the sor tbutton will speed up the process of

incrementing or decrementing.

To exit the setting of CT ratio, press the FUNC button.

5. DISABLE AUTO-POWER-OFF

The tester has an auto-power-off function. The tester will turn

the power off after power is turned on for 30 minutes. To disable

the auto power off function, hold the FUNC button for more

than 2 seconds. A beep sound will be heard to indicate that

the auto power off function is disabled.

6. SPECIFICATIONS(230C±50C)

AC Watt (50 or 60 Hz, PF 0.5 to 1. CT = 1, Voltage > AC 5V,

Current > AC 5A, and continuous waveform)

Range

Resolution

Accuracy of Readings1

>20V & >20A <20V or <20A

10.0 - 999.9 W 0.1W ±2% ± 20dgts ±2% ± 40dgts

1.000 - 9.999 KW

0.001 KW

±2% ± 20dgts ±2% ± 40dgts

10.00 99.99 KW 0.01 KW ±2% ± 20dgts ±2% ± 40dgts

100.0 - 999.9 KW 0.1 KW ±2% ± 20dgts ±2% ± 40dgts

1000 - 9999 KW 1 KW ±2% ± 20dgts ±2% ± 40dgts

1For CTf1, the accuracy in percentage is the same (±2%).

But the additional wattage should be multiplied by the CT

ratio.

For example, ±2.0W becomes ±2.0W * CT ratio

±4.0W becomes ±4.0W * CT ratio

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30 31

28 29

AC Apparent Power (VA, from 0.000VA to 9999 KVA)

Range

Resolution

Accuracy of Readings2

>20V & >20A <20V or <20A

10.0 - 999.9 VA 0.1VA ±2% ± 20dgts ±2% ± 40dgts

1.000 - 9.999 KVA

0.001 KVA

±2% ± 20dgts ±2% ± 40dgts

10.00 - 99.99 KVA 0.01 KVA ±2% ± 20dgts ±2% ± 40dgts

100.0 - 999.9 KVA 0.1 KVA ±2% ± 20dgts ±2% ± 40dgts

1000 - 9999 KVA 1 KVA ±2% ± 20dgts ±2% ± 40dgts

2For CTf1, the accuracy in percentage is the same (±2%).

But the additional VA should be multiplied by the CT

ratio.

For example, ±2.0VA becomes ±2.0VA * CT ratio

±4.0VA becomes ±4.0VA * CT ratio

AC Reactive Power (VAR, from 0.000 VAR to 9999 KVAR)

Range

Resolution

Accuracy of Readings3

>20V & >20A <20V or <20A

10.0 - 999.9 VAR 0.1VAR ±2% ± 30dgts ±3% ± 40dgts

1.000 - 9.999 KVAR

0.001 KVAR

±2% ± 30dgts ±3% ± 40dgts

10.00 - 99.99 KVAR

0.01 KVAR

±2% ± 30dgts ±3% ± 40dgts

100.0 - 999.9 KVAR 0.1 KVAR ±2% ± 30dgts ±3% ± 40dgts

1000 - 9999 KVAR 1 KVAR ±2% ± 30dgts ±3% ± 40dgts

3For CTf1, the accuracy in percentage is the same (±2%).

But the additional VAR should be multiplied by the CT

ratio.

For example, ±3.0VAR becomes ±3.0VAR * CT ratio

±4.0VAR becomes ±4.0VAR * CT ratio

Range of CT (Current Transformer) Ratio : 1 to 250

H.P. (Horse Power)

1 H.P. = 746 W

AC Active Energy ( WH, or KWH, from 0 WH to 999,999

KWH) WH = W * Time (in hours)

AC Current (50 or 60 Hz, Auto Range, True RMS, Crest

Factor < 4, CT=1)

(Overload Protection AC 2000A)

Range Resolution Accuracy of Readings4

10.0 - 1500.0 A 0.01 A ± 2% ± 5dgts

4For CT =1, the accuracy in percentage is the same (±2%).

But the additional digits should be multiplied by the CT

ratio.

For example, ±5 digits becomes ±5 digits * CT ratio

AC Voltage (50 or 60 Hz, Auto Range, True RMS, Crest Factor

< 4, Input Impedance 10 MV, Overload Protection AC 800V)

Range Resolution Accuracy of Readings

10.0 V - 600.0 V 0.1 V ± 0.5% ± 5dgts

Harmonics of AC Voltage in Percentage (1 to 99 order,

minimum voltage at the 50 or 60 Hz > AC 80V. If the voltage is

0 at 50 or 60 Hz, all the percentage (%) display is 0.)

Range Resolution Accuracy

1 - 20th 0.1% ±2%

21 - 49th 0.1% 4%of reading ± 2.0%

50 - 99th 0.1% 6%of reading ± 2.0%

Harmonics of AC Voltage in Magnitude (1 to 99th order,

minimum voltage at the 50 or 60 Hz > AC 80V)

Range Resolution Accuracy

1 - 20th 0.1% ± 2.0% ± 0.5V

21 - 49th 0.1% 4%of reading ± 0.5V

50 - 99th 0.1% 6%of reading ± 0.5V

Harmonics of AC Current in Percentage (1 to 99th order,

minimum current at the 50 or 60 Hz o 20 A. If the current is 0

at 50 or 60 Hz, all the percentage (%) display is 0.)

Range Resolution Accuracy

1 - 20th 0.1% ±2%

21 - 49th 0.1% 4% of reading ± 2.0%

50 - 99th 0.1% 6% of reading ± 2.0%

Harmonics of AC Current in Magnitude (1 to 99th order,

minimum current at the 50 or 60 Hz > 20A)

Range Resolution Accuracy

1 - 20th 0.1% ± 2% of reading ± 0.4A

21 - 49th 0.1% ± 4% of reading ± 0.4A

50 - 99th 0.1% ± 6% of reading ± 0.4A

Power Factor (PF)

Range Resolution Accuracy

>20V & >20A <20V or <20A

0.000 - 1.000 0.001 ± 0.04 ± 0.1

Phase Angle (u)

Range Resolution Accuracy

-180 to 18000.10±10

0 to 36000.10±10

Total Harmonic Distortion (THD-F with respect to the 50 or 60

Hz, min. value at the 50 or 60 Hz > 80V and > 20 A, 1 to 50

Harmonics. If the voltage or current is 0 at 50 or 60 Hz, all the

percentage (%) dispiay is 0)

Range Resolution Accuracy

0.0 - 20% 0.1% ±2.0%

20 - 100% 0.1% ± 6% of reading ±1%

100 - 999.9% 0.1% ±10% of reading ±1%

Peak Value of AC Voltage (peak value > 5V) or AC Current

(peak value > 20A)

Range Sampling Time Accuracy of Reading

50 Hz 39 ms ± 5% ± 30 digits

60 Hz 33 ms ± 5% ± 30 digits

Crest Factor (C.F.) of ACV (peak value > 5V) or ACA (peak

value > 20A)

Range Resolution Accuracy of Reading

1.00 - 99.99 0.01 ± 5% ± 30 digits

Resistance (V) and Continuity (Beep if less than 50V)

Range Resolution Accuracy

7.0 - 999.9 V0.1 V± 5 V

1000 - 1200 V1 V± 5 V

If reading is less than 7V, it is displayed as 0V

Frequency (RMS Value >10V) or ACA (RMS value >30A)

Range Resolution Accuracy of Readings

45 - 65 0.1 ± 0.2 Hz

4545 : 28-09-2012

Indoors Use

Conductor Size : 55mm (approx.),

64 x 24mm (bus bar)

Battery Type : two 1.5V SUM-3

Display : 4+4 digits LCD

Range Selection : Auto

Overload lndication : OL

Power Consumption : 10mA (approx.)

Low battery Indication :

Auto-Power-Off : 30 minutes after power-on

Update Time : 2 times/sec. (display)

No. Of Samples per Period : 512 (voltage or current)

256 (power)

Operating Temperature : -100C to 500C

Operating Humidity : less than 85% relative

Altitude : up to 2000M

Storage Temperature : -200C to 600C

Storage Humidity : less than 75% relative

Dimension : 210 x 62 x 35.6mm (approx.)

Weight : 640gms including battery

(approx.)

Accessories : Test leads x 1

Carrying bag x 1

Instruction manual x 1

Batteries 1.5V x 2 (installed)

Option : Alligator clips

7. BATTERY REPLACEMENT

When the low battery symbol is displayed on the LCD,

replace the old batteries with two new batteries.

A. Turn the power off and remove the test leads from the

clamp meter.

B. Remove the screw of the back cover.

C. Lift and remove the back cover.

D. Remove the old batteries.

E. Insert two new 1.5V SUM-3 batteries.

F. Place the back cover and secure the screw.

8. MAINTENANCE & CLEANING

Servicing not covered in this manual should only be performed by

qualified personnel.

Repairs should only be performed by qualified personnel.

Periodically wipe the case with a damp doth and detergent;

do not use abrasives or solvents.

32 33

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N O T E

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