Sanwa DCL1200R Manual de usuario

INSTRUCTION MANUAL

DCL1200R

DIGITAL CLAMP METER

Table of Contents

【1】

SAFETY PRECAUTIONS – Before use, read the following safety precautions.–

1-1 Explanation of Warning Symbols …………………………001

1-2 Warning Messages for Safe Use …………………………001

1-3 Overload Protection…………………………………………002

【2】APPLICATIONS AND FEATURES

2-1 Applications …………………………………………………003

2-2 Features ……………………………………………………003

【3】NAMES AND FUNCTIONS OF COMPONENT UNITS

3-1 Names and Functions of the Meter and Test Leads ……004

3-2 Display ………………………………………………………006

【4】DESCRIPTION OF FUNCTIONS AND TERMS

4-1 Auto Power Off………………………………………………007

4-2 AC Detection Method ………………………………………007

4-3 Crest Factor …………………………………………………008

【5】MEASURING PROCEDURE

5-1 Start-up Inspection …………………………………………009

5-2 ACCurrent (ACA) Measurement …………………………010

5-3

Voltage (V) Measurement, Frequency (Hz) Measurement

…011

5-4 Auto Resistance Voltage Determination (

AUTO ·V

)…012

5-5 Resistance/Continuity Check (600 ), Diode Test ( ),

Capacitance Measurement ( ) …………………………014

5-6 Voltage Detection ( EF) …………………………………016

【6】MAINTENANCE

6-1 Maintenance and Inspection ………………………………017

6-2 Calibration and Inspection …………………………………017

6-3 Storage ………………………………………………………017

6-4 Battery Replacement ………………………………………017

【7】AFTER-SALE SERVICE

7-1 Warranty and Provision ……………………………………018

7-2 Repair ………………………………………………………019

7-3 SANWA web site ……………………………………………020

【8】SPECIFICATIONS

8-1 General Specifications ……………………………………021

8-2 Measuring Range and Accuracy …………………………022

—1—

[1] SAFETY PRECAUTIONS

*Before use, read the following safety precautions.

This instruction manual explains how to use your new digital clamp

meter DCL1200R. Before use, please read this manual thoroughly

to ensure correct and safe use. After reading it, keep it together

with the product for reference to it when necessary.

The instructions given under the heading of “ WARNING” must be

followed to prevent accidental burn and electric shock.

1-1 Explanation of Warning Symbols

The meaning of the symbols used in this manual and attached to

the product is as follows:

: Very important instructions for safe use.

• The warning messages are intended to prevent accidents to

operating personnel such as burn and electric shock.

• The caution messages are intended to prevent incorrect

handling and measurement which may damage the product.

: Risk of Electric shock : Direct current (DC)

: Ground : Resistance

: Alternating current (AC) : Diode

: Buzzer : Capacitance

: Double insulation or reinforced insulation

1-2 Warning Messages for Safe Use

The following instructions are intended to prevent personal injury such as

burn and electric shock. Be sure to follow them when using the meter:

1. This is a clamp meter for low-voltage circuits. Be sure to use

it for circuits of voltage-to-ground of 600Vrms or below.

2.Voltages above 70VDC or 33Vrms AC (46.7V peak) are

hazardous to human body. Never touch them.

3. Never input signals exceeding the maximum rated input value

(see 1-3).

4. Never use the meter for measuring voltages of lines connected to

equipment (e.g. motors) that generates induced or surge voltage

since it may exceed the maximum allowable overload input.

WARNING

—2—

Function

Signal Input Part

Maximum Rated Input Value

Maximum Overload Protection

15. Never use the meter near equipment which generates strong

electromagnetic waves or is charged.

16. Never use the meter if the meter or test leads are damaged

or broken.

17. Never use the meter with the case or battery lid removed.

18. During measurement, do not hold a place beyond the barrier

of the meter or the test pin side of the flange of the test leads.

19. To measure a voltage, first connect the black test lead to the

negative (–) or ground side. When disconnecting, the

positive (+) or non-ground side must be disconnected first.

10. During measurement, do not change the meter to another

function.

11. Before starting measurement, make sure that the function

and range are properly set.

12. Never use the meter when it is wet or with wet hands.

13. Be sure to use the specified type of test leads.

14. Never attempt repair or modification, except for battery

replacement.

15. Inspect the meter at least once a year.

16. This meter is for indoor use only.

1-3 Overload Protection

The maximum rated input value and overload protection have

been established for the signal input part of each function.

DC·AC 600Vrms

Voltage and current

input prohibited.

Clamp type

current sensor (CT)

AC 1200Arms AC 2000Arms

DC·AC 600Vrms

Between + and –

terminal

—3—

[2] APPLICATIONS AND FEATURES

2-1 Applications

This is an AC clamp meter designed for the IEC measurement

category CAT. III 600 V and is suitable for measurement of AC

current of electrical equipment and power supply facilities.

2-2 Features

• Lighter than conventional clamp meters (30% reduction from

Sanwa equivalent meters) for easy transportation.

• TRUE RMS (AC coupling)

• Large “HOLD” button to ensure holding of the indicated value.

• Safety design in compliance with the IEC.

• Auto resistance/voltage determination function is available.

• Non-contact voltage detection function.

• Fast response continuity buzzer (<100μs).

• Back light

• DMM function provided.

PER IEC61010 OVERVOLTAGE INSTALLATION CATEGORY

OVERVOLTAGE CATEGORY II

Equipment of OVERVOLTAGE CATEGORY II is energy-

consuming equipment to be supplied from the fixed installation.

Note :

Examples include household, office, and laboratory appliances.

OVERVOLTAGE CATEGORY III

Equipment of OVERVOLTAGE CATEGORY III is equipment in

fixed installations.

Note :

Examples include switches in the fixed installation and some

equipment for industrial use with permanent connection to the

fixed installation.

OVERVOLTAGE CATEGORY IV

Equipment of OVERVOLTAGE CATEGORY IV is for use at the

origin of the installation.

Note :

Examples include electricity meters and primary over-current

protection equipment.

—4—

[3] NAMES AND FUNCTIONS OF COMPONENT UNITS

3-1 Names and Functions of the Meter and Test Leads

햲

햳

햴

햵

햶

햷

햹

햸

햺

햿

헀

햾

햽

햻

Test pin

Finger guard

Test probe (red)

Test probe (black)

Plug

햲Clamp type current sensor

(CT)

Accuracy guarantee range mark

Center position mark

Barrier

Open/close lever

Display

햳

햴

햵

햶

햷

A sensor to clamp a conductor to measure.

(“Clamp sensor”)

A range to clamp a conductor to measure

which is guaranteed for accuracy. (See 5-2)

A convex part to prevent fingers from touching an

object to measure during measurement of current.

A lever to open and close the clamp sensor.

An LCD to show measured values.

—5—

When this button is pressed, the functions

change as follows:

V · Hz Position : DCV 씮ACV 씮Hz 씮DCV

Position : 600씮씮씮600

BACKLIGHT function :

When the button is held pressured for 1

second or longer, the backlight of the LCD will

be turned on. When the button is held pressed

for 1 second or longer again, the backlight will

be turned off. It will also be turned off when

the function switch is set to OFF.

It will not turn off automatically.

Slide this switch to turn on and off the power

and to select a function.

Insert the black test lead.

Insert the red test lead.

When the RANGE button is pressed, the

meter will be set in the manual mode and the

range will be fixed. (“

AUTO

” will disappear

from the display.) In the manual mode, each

time this button is pressed, the range

changes. While checking the unit and

decimal point on the display, select the best

range. To return to the auto range, hold this

button pressed for 1 second or longer.

(“

AUTO

” will appear on the display.)

Note: During frequency measurement (Hz)

and capacitance measurement (0 0), it cannot

be changed to the manual range.

When this button is pressed with the function

switch in positions other than OFF, “E.F” will be

shown in the display to activate the non-contact

and contact type voltage detection functions. “–”

is shown in the display and buzzer sounds on the

charging circuit side (non-ground side) of the line.

When this button is pressed, the indicated value will

be held. (“H ” will appear on the display.) The

indicated value will not change if the measurement

input fluctuates. When this button is pressed again,

the hold status will be canceled and the meter will

return to the normal measurement mode. (“H ” will

disappear from the display.)

Sensor position for non-contact voltage detection.

햸

햹

햺

햻

햽

햾

햿

헀

SELECT/ BACK LIGHT

button

Power switch & function

switch

– measuring terminal

+ measuring terminal

RANGE button

(Range hold)

EF button

(Voltage detection)

HOLD button (Data hold)

—6—

3-2 Display

Numerical value indication.

햲

햳

햴

햸

햺

Unit of measurement.

Lights during voltage measurement of low-

input impedance by AUTO V·function.

Lights in the auto range mode.

Warning of low battery power: This mark will

appear on the display when the built-in battery has

been discharged and its voltage has dropped to

below about 2.4 V. When this mark flickers or

lights, replace the battery with a new one.

Lights in the data hold mode.

Negative sign of numerical data.

Indication of AC measurement.

Lights during diode test.

햹

햵

햶

햻

Indication of DC measurement.

햷

—7—

[4] DESCRIPTION OF FUNCTIONS AND TERMS

4-1 Auto Power Off

About 37 minutes after power on, the power will automatically

be turned off and the display will become blank. However, if any

of the following events occurs, the power will be turned off about

37 minutes after such event:

a. Indication other than “OL” at .

b. Indication other than “AUTO” at AUTO ·V.

c. Indication other than 0 at Hz.

d. Fluctuation more than 10% at DCV, ACV and A.

e. Operation of the function switch or other button.

To reset the meter, press any button or remove the test leads or

the clamp sensor (CT) from an object to measure and set the

function switch to OFF.

*In the auto power off mode, a very small amount of current keeps

flowing. Therefore, when measurement has been finished, be

sure to return the function switch to the OFF position.

*The auto power off function cannot be canceled.

4-2 AC Detection Method

This meter employs the root-mean-square value method and

indicates the magnitude of AC as the same amount of work as

DC. Root-mean-square values of sinusoidal waves and such

non-sinusoidal waves as square waves and chopping waves can

be measured by the true RMS (Root Mean Square) circuit. (The

measured value of input signals is the measure of actual input

signal power and therefore, more effective values can be obtained

than averaged values.)

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