beautypg.com

1 ) name of parts, Jk l m n, Warning caution – GW Instek GCM-303 User Manual

Page 3

background image

j

k

l

m

n

Jaw

Opening of the jaw
Guard ring

Clamp trigger

Function switch knob

Keep your hands below the
guard ring of the meter while
measuring with sensoring jaw.

Press down the trigger to open
the jaw.

Position the conductor in the
center of jaw in order to ensure
the accuracy of reading while
measuring current.

-4-

Warning

Caution

To prevent damage to the meter or electrical
shock!

According to the safety standard, the maximum voltage
input power is classified as follows to protect the users
against transient impulse voltage in power lines.

Over-voltage Category (CAT.) Maximum input voltage

Do not use the meter near equipment emitting noise or
under an environment with sudden temperature
change; otherwise, unstable or erroneous reading will
appear.
Take the batteries out of the meter if it will be left idle for
a long time.
After measurement, switch the function knob back to

OFF position. As there will be slight power consumption

under auto power off mode.
Please position the conductor in the center of jaw in
order to ensure the accuracy of measurement while
measuring current.
Please make sure to keep out of high current to ensure
the accuracy of measurement while measuring
current.
Do not use organic solvent to clean the meter but with a
soft cloth if necessary.
Do not expose the meter under direct sunshine or
extreme temperature or in moisture places.
When the measurement values appear irregularly

or the

symbol displays, replace the batteries

immediately to ensure normal operation.

4

CAT II

600V

1

1

1

1

1

1

1

1

-3-

Turn off the power

AC current measurement

AC voltage measurement

DC voltage measurement

Resistance measurement

Diode / Continuity check

/

( 1 ) NAME OF PARTS

OFF

A

V

V

6

7

2

8

11

1

3

4

5

9

10

MAX

SELECT

OFF

COM

V

V

A

600V

AC

CLAMP METER
AUTO RANGE

P r e s s

M A X

k e y

d u r i n g

measurement,

symbol will

appear on the LCD; and the
maximum value will be locked
and renewed instantaneously.
To cancel this function, just
press MAX key again and

ymbol will disappear.

This function is only

applicable to

,

&

s
Note:

MAX

MAX

6

MAX key

A V

V

CAT

This manual is related to the following products: