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I. Overview
handheld 1000A AC clamp meters, designed in
accordance to EN61010-2010 and CAT III 600V/CAT II 1000V,
with full-featured protection ensuring users a safe and reliable
measurement experience. These meters have multiple
functions such as basic electric measurement, inrush current
measurement , high-accuracy current measurement, etc.
G9204-II is ideal measurement tools in electric fields.
II. Features
1) Lightweight and compact.
2) Full-featured false detection protection for up to 600V (30kVA)
energy surge, overvoltage and overcurrent alarm functions.
3) Auto ranges for current include 60A, 600A, 1000A, frequency
response is up to 45Hz~1kHz, G9204-II has inrush current
measurement function.
4) Large capacitance measurement (60nF~60mF), fast ADC
(3 times/s), response time for capacitance measurement:
less than 6s for
≤
1mF; about 8s for
≤
60mF.
5) Overvoltage and overcurrent alarm function.
6) The circuit has an automatic power saving function, the
consumption in sleep state is <20uA, which effectively extends
the battery life to 200 hours.
Warning: Before using the meter, please read the Safety
Information carefully.
III. Accessories
Open the package box and take out the meter. Please double
check whether the following items are missing or damaged.
1. User manual ----------------------------- 1 pc
2. Test leads
1 pair
---------------------------------
3. K-type temperature probe
1 pc
------------
4. Carrying bag
1 pc
-----------------------------
If any of the above is missing or damaged, please contact your
supplier immediately.
IV. Safety Information
The meter is designed in accordance with IEC/EN61010-1,
61010-2-032 and electromagnetic radiation protection EN 61326-
1 safety standards, and conforms to CAT III 600V, CAT II 1000V,
double insulation and pollution grade II. In case the meter is
not used according to the operating instructions, the protection
provided by the meter may be compromised or lost.
1. Before use, please check if there is any item which is damaged
or behaving abnormally. If any abnormal item (such as bare
test lead, damaged meter casing, broken LCD, etc.) is found,
or if the meter is considered to be malfunctioning, please do
not use the meter.
2. Do not use the meter if the rear cover or the battery cover is
not covered up, or it will pose a shock hazard!
3. When using the meter, your fingers must be placed behind
the finger guard ring of the test leads. During measurement,
do not touch exposed wires, connectors, unused inputs, or
circuits being measured to prevent electric shock.
4. The function switch should be placed in the correct position
before measurement. It is forbidden to change the position
during measurement to avoid damage to the meter!
5. Do not apply voltage over 1000V between any meter terminal
and earth ground to prevent electric shock or damage to the
meter.
6. Be cautious when the measured voltage is higher than 60V
(DC) or 30Vrms (AC) to avoid electric shock!
7. Never input voltage or current which exceeds the specified
limit. If the range of the measured value is unknown, the
maximum range should be selected. Before measuring the
resistance, diode and continuity online, switch off the power
supply of the circuit, and fully discharge all capacitors to avoid
inaccurate measurement.
8. When the “ ” symbol appears on the LCD, please replace
the batteries in time to ensure measurement accuracy. If the
meter is not in use for a long time, please remove the batteries.
9. Do not change the internal circuit of the meter to avoid damage
to the meter and user!
10. Do not use or store the meter in high temperature, high
humidity, flammable, explosive and strong magnetic field
environments.
11. Clean the meter casing with a soft cloth and mild detergent.
Do not use abrasives or solvents!
V.Electrical Symbols
Description
Description
High voltage hazard
AC
DC
Double insulated
Grounding
Warning
Symbol
Symbol
VI. General Specifications
1. Max display: 6099
2. Polarity display: Auto
3. Overload display: “OL” or “-OL”
4. Low battery indication: The “ ” symbol is displayed.
5. Low battery shutdown prompt: The “Lo.bt” interface appears on
the LCD and lasts for about 10s, the buzzer beeps three times,
and the meter automatically shuts down.
6. Test position error: If the source under test is not placed at the
center of the clamp jaws when measuring current, ±2.0% additional
error in reading will be produced.
7. Drop protection: 1m
8. The maximum size of jaw opening: 48mm in diameter
9. The maximum size of conductor to be measured: 45mm in diameter
10. Battery: AAA battery 1.5V×2
11. Auto power off: If there is no operation of the function switch or
any button for 15 minutes, the meter will automatically power off.
This function can be turned off as needed.
12. Dimension: 242mm×76.5mm×52mm
13. Weight: About 235g (including batteries)
14. Altitude: 2000m
15. Operating temperature and humidity: 0°C~30°C (
≤
80%RH),
30°C~40°C (
≤
75%RH), 40°C~50°C (
≤
45%RH)
16. Storage temperature and humidity: -20°C~60°C (
≤
80%RH)
17. Electromagnetic compatibility:
RF=1V/m, overall accuracy=specified a5% of range
RF>1V/m, no specified calculation
VII.External Structure
1. NCV sensing end
2. Clamp jaws
3. Hand guard
4. Jaw opening trigger
5. Function switch
6. LCD display
7. Function buttons
8. Positive (+) input jack
9. COM (negative -) input jack
VIII.Button Description
1. SELECT Button
In the composite function position, press this button to switch between
the corresponding measurement functions; in current measurement
function position, long press this button (about 2s) to enter INRUSH
measurement function, short press to refresh the current reading,
long press again to exit INRUSH measurement function.
2. HOLD/LIGHT Button
a). Short press this button to enter or exit the data hold mode.
b). Long press this button (about 2s) to turn on/off the light, the light
will automatically turn off after 5 minutes.
3. MAX/MIN Button
Short press this button to enter the maximum/minimum measurement
mode and long press this button to exit (only valid for AC/DC voltage,
AC current). The meter will consecutively make beep sounds twice
if this button is pressed in other inapplicable function positions.
4. REL/BACKLIGHT Button
1) In the voltage, current, capacitance and resistance positions,
press this button to store the current reading as a reference for
future readings. When the LCD display value is reset to zero, the
stored reading will be substracted from the future readings. Press
this button again to exit the relative value mode. The meter will
consecutively make beep sounds twice if this button is pressed in
other inapplicable function positions.2) Long press for about 1~2
seconds to turn on/off the backlight, the backlight will automatically
turn off after the backlight is on for about 1 minute.3) Long press
for about 3 seconds to enable the backlight to enter always-on
mode, long press for
≥
3 seconds to exit the mode.
IX.Operating Instructions
1. AC Current/Motor Inrush Current Measurement (Figure 2 & 3)
1) Select the AC current range, the meter will automatically switch
corresponding range (60.00A/600.0A/1000A) according to the
input amplitude during measurement.
2) Press the trigger to open the clamp jaws, and fully enclose one
conductor.
3) Only one conductor can be measured at a time, otherwise the
measurement method and reading will be wrong.
Inrush current is the true
RMS of current within
100ms from the start of
triggering point, the
triggering value of inrush
current in 600A range is
about 6A, used to detect
the cranking current of
motor.
RMS (INRUSH)
AC current
Cycle
PEAK
A area
Warning:
Short circuit is not easy to occur between the clamp jaw and
the measured object, but when measuring uninsulated
conductor, please be careful not to cause short circuit
between the uninsulated conductor and the clamp jaws.
The measurement is sensitive to mechanical stress to some
extent, so please do not release the trigger suddenly when
it is pressed, otherwise the impact will affect the reading in
a short time.
To ensure measurement accuracy, the measured conductor
must be centered in the clamp jaws (A area), if is deviated
from center area (in B or C areas), ±2.0% additional error in
reading will be produced.
When the measured current is >1000A, the meter will
automatically sound an alarm.
2. AC/DC Voltage and Frequency Measurement
1) Insert the red test lead into the signal input terminal, and the
black test lead into “COM” terminal.
2) Turn the function switch to AC voltage position, and connect
the test leads with the measured load or power supply in
parallel.
Warning:
Do not input voltage above 1000V (AC). Although it is possible
to measure higher voltage, it may damage the meter.
Be cautious to avoid electric shock when measuring high
voltage.
When the measured voltage is >30V/AC, the LCD will display
the high voltage alarm prompt “ ”.
3. Resistance, Continuity, Capacitance and Diode
Measurement
1) Insert the red test lead into the signal input terminal, and the
black test lead into “COM” terminal.
2) Turn the function switch to the “
Ω
” position, press the SELECT
button to select resistance measurement, and connect the
test leads with both ends of the measured resistance in
parallel.
Capacitance
Continuity
Diode
Resistance
Red
Black
If the measured resistor is open or the resistance exceeds
the maximum range, the LCD will display “OL”.
Before measuring the resistance online, switch off the power
supply of the circuit, and fully discharge all capacitors to avoid
inaccurate measurement.
If the resistance is not less than 0.5Ω when the test leads are
short-circuited, please check the test leads for looseness or
other abnormalities.
For continuity measurement, if measured resistance is <30Ω,
the circuit is in good conduction status and the buzzer beeps
continuously; if measured resistance is 30Ω~50Ω, the buzzer
may make sounds or make no sound; if measured resistance
is >51Ω, the buzzer makes no sound certainly
.
For diode measurement, “ ” polarity is needed to be
distinguished, read the approximate forward PN junction
voltage of measured diode directly from the display . For the
silicon PN junction, the normal value is generally about
500~800mV.
Before measuring capacitance “ ”, it is recommended to
use “REL” measurement mode for capacitance
≤
100nF.
For capacitance above uF, short-circuit the electrode of the
capacitor and fully discharge all capacitors (especially for
capacitors with high voltage) to avoid damage to the meter and
user.
Do not input voltage over AC/DC 30V to avoid personal injury.
4. Temperature Measurement
1) Insert the positive pole of the temperature probe into the
signal input terminal and negative pole into “COM” terminal.
2) Turn the function switch to “°C/°F” position and the LCD will
display room temperature.
3) Fix the temperature probe on the object to be tested, and
read the temperature value of the tested object directly from
the display after a few seconds.
Figure 1
Figure 4
Figure 5
Figure 2
Figure 3
Red
Black
G9204 - II
1000A Digital Clamp Meter
User Manual
P/N:
G9204-II is
