REED C-212 Manual de usuario

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Model C-212

TRMS AC/DC Clamp Meter

Instruction

Manual

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Table of Contents

Safety ............................................................................................ 3

Features......................................................................................... 4

Specications.............................................................................4-6

Instrument Description ...............................................................7-8

Measurement Procedures ........................................................9-12

Battery Replacement................................................................... 13

Product Maintenance .................................................................. 13

For service on this or any other REED product or information on other

REED products, contact REED Instruments at info@reedinstruments.com.

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Safety

•

Read this manual before using the meter and follow all safety guidelines.

• Use the meter only as specied in this instruction manual. Otherwise

the meters protection may be impaired.

•

Never use this meter on a circuit with voltages greater than 750Vrms @ 50/60 Hz.

• Do not operate the meter if the body or test leads look damaged.

• Check the function selector range switch and make sure it is at the cor-

rect position before each measurement is taken.

• Do not perform resistance and continuity tests on a live circuit.

• Exercise extreme caution when measuring live systems with voltages

greater than 60VCC or 30VCA.

• Use extreme care when working around bus bars and bare conductors.

• Do not use the meter in over range/overload conditions (OL).

•

Change the battery when the symbol appears to avoid incorrect readings.

Environmental Conditions

Altitude up to 2000 meters.

Operating Temperature: 0°C ~ 40°C, <80% RH, non-condensing

Storage Temperature: -10°C ~ 60°C, <70% RH, battery removed

Pollution Degree: 2

Installation Categories III (600V), II (1000V)

Symbols

Attention! Refer to operation Instructions.

Dangerous voltage may be present at terminals.

This instrument has double insulation.

Approvals: EN61010 600V CAT III 1000V CAT II

When servicing this meter, use only specied replacement parts. For service

(repairs or calibration) on this or any other REED product or information on other

REED products, contact REED Instruments at info@reedinstruments.com.

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Features

• True RMS measurements

• 3-3/4 digit LCD with high-speed, 42-segment bargraph

• Max/Min and Data Hold functions

• Peak Hold function

• Frequency measurement

• Diode and continuity test with beeper

• Polarity and overload indications

• Auto or manual ranging

• Auto power-off

• Low battery indication

Specifications

General Specification:

Digital Display: 3 3/4 digits LCD display with maximum reading 3999

Analog Display: Fast 40 segment analog bar graph display

Symbol & Scale Range:

Automatic display according symbols

and range input signal

Polarity:

is displayed when negative signal applied to the input

Over Load: is displayed when input signal exceeds range

Sample Rate: 2 times/sec for digital data; 20 times/sec for analog bar

Low Battery Indication: is

displayed when the battery

is below the required voltage

Auto Power Off: By default, the meter is in auto power off mode. The

meter will power itself off after 30 minutes without

operation. To disable the auto power off, press and

hold the “MAX/MIN” button and turn the meter on.

Jaw Opening: 40mm

Power Supply: 9V, NEDA1604 or 6F22 or 006P

Battery Life: 40 hours typically (Alkaline)

Dimensions (L x W x H):

9.53 x 2.60 x1.4” (242 x 66 x 36 mm)

Weight: 400g (14.10 oz) with battery

Includes: Carrying case, test leads, 9V battery

and instruction manual

continued ...

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Electrical Specifications

The accuracy specication is dened as ± (…% of reading+ …count) at

23±5°C,

80%RH

TRMS for ACV and ACA accuracy are specied from 5% to 100% of the

range. For the accuracy add ±(1% of reading) on Crest Factor 1.4<CF<3

at full scale & CF<6 at half scale.

ACA

Range Resolution Accuracy Overload Protection

40A 0.01A

50 ~ 60Hz

± (1.9% rdg +

5 digits)

60 ~ 500Hz

±(2.5% rdg +

5 digits )

1200Arms400A 0.1A

1000A 1A

DCA

Range Resolution Accuracy Overload Protection

40A 0.01A

± (2.5% reading + 10 digits) 1200Arms400A 0.1A

1000A 1A

ACV (Autorange)

Range Resolution Accuracy Overload Protection

400V 0.1V ± (1.5% reading + 5 digits)

50 ~ 500Hz 1000Vrms

750V 1V

DCV (Autorange)

Range Resolution Accuracy Overload Protection

400V 0.1V ± (1% reading + 2 digits) 1000Vrms

1000V 1V

Ohm (Resistance) (Autorange)

Range Resolution Accuracy Overload Protection

400Ω 0.1Ω ± (1% reading + 2 digits) 600Vrms

4000Ω 1Ω

continued ...

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(Diode)

Range Test Current Open Circuit Voltage Overload Protection

1.7mA Max. 6V Max. 600Vrms

Continuity

Range Active Region Overload Protection

<100Ω 600Vrms

Frequency (Hz) (Autorange)

Function Range Resolution Sensitivity Accuracy

A-Hz 4KHz 1Hz 2Arms

±(0.1% reading +

1 digits) (20~10KHz)

10KHz 10Hz 5Arms

V-Hz 4KHz 1Hz 5Vrms

±(0.1% reading +

1 digits) (10~10KHz)

10KHz 10Hz 10Vrms

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Instrument Description

1 — Current Sensing Clamp

2 — Clamp opening handle

3 — Function select dial

4 — Hold Button

5 — Peak Hold Button

6 — Maximum Minimum Button

7 — AC/DC Select Button

8 — Relative Button

9 — LCD Display

10 — “COM” Terminal

11 — “ + ” Test Terminal

Display

Auto Power Off indication

Low battery indication

Direct Source indication

Alternative

Positive Peak detect indication

Relative indication

Negative Peak detect indication

Manual range indication

Data Hold indication

Diode function indication

Continuity with beeper

Polarity indication

Analog Bar display

Resistance measure-

ment indication

Voltage & Current

measurement

indication

Frequency measure-

ment indication

continued ...

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Data Hold Function

Press the “HOLD” button at any time to hold the current reading. To

release the data being held, simply press the “HOLD” button again.

Peak Hold Function

This meter is designed with 1ms peak hold function at ACA, ACV, DCA

and DCV ranges. Before performing a peak hold operation, a calibration

process must be completed rst.

To do this, press and hold the peak button for 2 seconds. “CAL” will dis-

play on the LCD and the offset will be calculated and kept in the meter.

After the calibration is complete, you can choose P+ or P- by pressing

the “PEAK + HOLD” button to keep the peak reading. To return the meter

back to normal operation, press the “PEAK” button for 2 seconds.

When the function range changes, the meter will require another calibra-

tion for peak measurement.

MAX/MIN Function

This meter is designed with a MAX/MIN function at ACA, ACV, DCA and

DCV ranges.

Press the “MAX/MIN” button once to set the meter to the MAX mode.

Press it once again to set the meter to MIN mode. Press it once again and

the meter will display the present reading and will continue tracking the

MAX and MIN changes. This mode will also be indicated with the blinking

“MAX MIN” symbol.

Set the meter back to normal operation by pressing the “MAX/MIN”

button for more than 2 seconds.

REL Function:

This meter is designed with REL function at ACA, ACV and DCV, DCA ranges.

Press the “REL” button to change the zero to the current reading and the

relative value will show on the LCD. Press it once again and the meter

will display the relative zero point. This mode will also be indicated with a

blinking “REL” symbol.

Set the meter back to normal operation by pressing the “REL” button for

more than 2 seconds.

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Measurement Procedures

Current Measurement

Switch the main function selector to proper current range.

ACA

Open the clamp by pressing the jaw-opening handle and insert the cable

to be measured into the jaw. Choose AC current measurement by press-

ing the “AC/DC” button for ACA readings.

DCA

To measure DC current, choose DC measurement by pressing the

“AC/DC” button. Wait for the reading to stabilize then press the “REL”

button to reset the reading. Once completed, insert the cable to be

measured into the jaw and read the value.

Notes: Before taking this measurement, disconnect the test leads from the

meter for safety. If the reading is difcult to read, push the “HOLD” button

and read the result later.

CORRECT

INCORRECT

(2 wires inside)

continued ...

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Voltage measurement

Switch the main function selector to Voltage Range. Connect the Red test

lead to the “+” terminal and the Black one to the “COM” terminal. Choose

AC or DC by pressing the AC/DC button. Measure the voltage by touching

the test lead tips to the test circuit where the value of voltage is needed.

Read the result on the LCD panel.

Resistance measurement

Switch the main function to the “Ω” range,

verify that the power line is disconnected from

the system. Connect the Red test lead to the

“+” terminal and the Black one to the “COM”

terminal. Connect the tips of the test leads to

the points where the value of the resistance is

needed. Read the result on the LCD panel.

Note: When measuring the resistance value of

a circuit system, make sure the power is off

and all capacitors required are discharged.

continued ...

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