Table of Contents
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I. DISPLAY SYMBOLS
ols
Description
Number
1
Indicator for AC voltage or current
2
Indicator for DC voltage
3
The battery is low.
Warning: To avoid false readings, which
could lead to possible electric shock or
ating Manual
personal injury, replace the battery as soon as
the battery indicator appears.
4
The Meter is in the auto range mode in
which the Meter automatically selects
the range with the best resolution.
uropean Union
5
Test of diode
6
The continuity buzzer is on
7
Maximum reading displayed
8
Data hold is active
9
Amperes (amps). The unit of current.
10
Ω: Ohm. The unit of resistance.
kΩ:Kilohm. 1000 ohms
MΩ:Megohm. 1,000,000 ohms
11
V: Volts. The unit of voltage.
mV: Millivolt. 0.001 volts
12
Indicates negative reading
cy
+5)
+5)
Trigger
Figure 1
Rotary
Functional Buttons
Switch
SELECT
Positions
Ω
•
N/A
N/A
A
20A
N/A
A
200A
N/A
A
600A
N/A
B. DC Voltage: Auto Ranging
Range
Resolution
T
RMS
AUTO
200.0mV
0.1mV
2.000V
3
1mV
DC
20.00V
10mV
2
200.0V
100mV
12
AC
600V
1V
1
Remarks:
●
Input impedance: 10MΩ
●
Overload protection: 600V rms
C. Resistance: Auto Ranging
Range
Resolution
200.0Ω
100mΩ
2.000kΩ
1Ω
20.00kΩ
10Ω
200.0kΩ
100Ω
2.000MΩ
1kΩ
20.00MΩ
10kΩ
OPERATING INSTRUCTIONS
Digital Clamp Meter
Model GCM-221
Read this owners manual thoroughly before use and save.
Transformer Jaws
Functional Buttons
MAX
HOLD
N/A
•
•
•
•
•
•
•
•
•
•
•
4
5 6
7
8
Accuracy
MAX
˚C˚F
±(0.8%+3)
A
A
±(0.8%+1)
9
A
MK
±(1%+3)
10
m
VA
11
Figure 2
Accuracy
1
±(1.2%+2)
±(1%+2)
±(1.2%+2)
±(1.5%+2)
Rotary Switch
LCD Display
Input Terminals
International Electrical Symbols
AC (Alternating Current)
DC (Direct Current)
Grounding
Double Insulated
Warning. Refer to the Operating Manual
Low Battery Indication
Continuity Test
Diode
Conforms to Standards of European Union
Number
1
In
2
In
3
Th
Warn
could lead
personal i
the battery
4
Th
wh
the
5
Te
6
Th
7
Ma
8
Da
9
Am
10
Ω:
kΩ
MΩ
11
V:
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Table of Contents
Related Manuals for Gardner Bender GCM-221
Summary of Contents for Gardner Bender GCM-221
- Page 1 OPERATING INSTRUCTIONS Digital Clamp Meter Model GCM-221 Read this owners manual thoroughly before use and save. Transformer Jaws Trigger Rotary Switch Functional Buttons LCD Display Input Terminals I. DISPLAY SYMBOLS Figure 1 Description Number Rotary Functional Buttons Switch SELECT HOLD...
- Page 2 II. SAFETY WARNINGS • This instruction manual contains warnings and safety rules which must be observed by the user to ensure safe operation of the instrument and retain it in safe condition. • Read through and understand the instructions contained in this manual before using the instrument. •...
- Page 3 Measurement categories (Over-voltage categories) To ensure safe operation of measuring instruments, IEC61010 establishes safety standards for various electrical environments, specified as CAT I through CAT IV, and called measurement categories. Higher-numbered categories correspond to electrical environments with greater momentary energy, so a measuring instrument designed for CAT III environments can endure greater momentary energy than one designed for CAT II.
- Page 4 IV. FUNCTIONAL BUTTONS AND AUTO POWER OFF 1. HOLD: Press the HOLD button to enter & exit the hold mode. Press and hold the HOLD button while turning the Meter on, the auto power off function will be disabled. 2. AUTO POWER OFF: To preserve the battery life of the Meter, the Meter will automatically go into a "Sleep" mode if you do not use the device for around 10 minutes.
- Page 5 C. Measuring Resistance (See Figure 5) WARNING To avoid damage to the Meter or to the devices under test, disconnect circuit power and discharge all the high-voltage capacitors tional Electrical Symbols before measuring resistance. Number Description Rotary Functional Buttons Switch SELECT HOLD ctrical Symbols...
- Page 6 the range with the best resolution. Conforms to Standards of European Union Diode which the Meter automatically selects Test of diode the range with the best resolution. Conforms to Standards of European Union The continuity buzzer is on Test of diode B.
- Page 7 0.1A establish original ownership of product. 600A No warranty will be honored unless an invoice or other proof of purchase date is provided to Gardner Bender. Remarks: Hand written receipts or invoices will not be honored. ©2016 Product Power, LLC All rights reserved. - See more at: http://www.gardnerbender.com/en/resources/warranty-page#sthash.5Y2dIBQV.dpuf 800.822.9220 •...
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