JT2007
Pen Type Multimeter
Operating Manual
Overview
Unpacking Inspection
Safety Information
Rules For Safe Operation
International Electrical Symbols
The Meter Structure (see figure 1)
Display Symbols (see figure 2)
This Operating Manual covers information on safety and
cautions. Please read the relevant information carefully and
observe all the Warnings and Notes strictly.
Open the package case and take out the Meter. Check the
following items carefully to check if there is any missing or
damaged part:
This Meter complies with standards EN61010: in pollution
degree 2, overvoltage category (CATIII 300V) and double
insulation. CATIII: Distribution level, fixed installation, with
smaller transient over voltages than CAT IV. Use the Meter
only as specified in this operating manual. Otherwise, the
protection provided by the Meter may be impaired.
In this manual, a Warning indicates conditions and actions
that pose hazards to the user, or may damage the Meter or
the equipment under test.
A Note indicates the information to which the user should
pay attention on.
To avoid possible electric shock or personal injury, and to
avoid possible damage to the Meter or to the equipment
under test, adhere to the following rules:
In the event that there is any missing or damage, please
contact your dealer immediately.
AC/DC voltage
EF Function
Resistance
Diode
Continuity
Capacitance
Before using the Meter, inspect the case. Do not use the
Meter if it is damaged or the case (or part of the case) is
removed. Look for cracks or missing plastic. Pay attention
to the insulation around the connectors.
Inspect the test leads for damaged insulation or exposed
metal parts. Check the test leads for continuity. Replace
the damaged test leads with identical model number or
electrical specifications before using the Meter.
When using the test leads, keep your fingers behind the
finger guards.
Do not apply more than the rated voltage, as marked
on the Meter, between the terminals or between any
terminal and grounding.
When the Meter is working at an effective voltage over
60V DC or 30V AC, special care should be taken because
there is a danger of electric shock.
Use the proper function and range for your
measurements.
Disconnect the circuit power and discharge all high
voltage capacitors before testing current, resistance,
diodes or continuity.
Replace the battery as soon as the battery indicator
appears. With a low battery, the Meter might take false
readings that can lead to an electric shock and personal
injury.
When servicing the Meter, use only the same model or
identical electrical specifications replacement parts.
The internal circuit of the Meter shall not be altered at will,
in order to avoid damage of the Meter and any accident.
Soft cloth and mild detergent should be used to clean
the surface of the Meter when servicing. No abrasives
and solvents should be used to prevent the surface of the
Meter from corrosion, damage and accident.
Do not use or store the Meter in an a humid, hot,
explosive, inflammable place or with a strong magnetic
field. The performance of the Meter may be deteriorated
after being dampened.
⚠
Warning:
1. Front Housing
Figure 1
3. Switch
5. Input Terminals
2. Functional buttons
4. LCD Display
⚠
Warning:
Functional buttons and auto power off
Press
SELECT
to switch between resistance, AC/DC voltage,
continuity buzzer and diode measurement modes. Press
and hold the button for more than 2 seconds to enter in or
exit “sleep” mode.
1. SELECT
To preserve battery life, the Meter automatically enters the
“sleep” mode if you do not press any button for around
10 minutes. The Meter can be activated by pressing any
button, then it returns to the display of the function selected
previously.
5. AUTO POWER OFF
To avoid electric shock or personal injury, read the “Safety
Information” and “Rules for Safe Operation” carefully before
using the Meter.
The Model JT2007 Pen Type (hereafter referred as “the
Meter”) are 3,000 counts. The Meter uses a large scale of
integrated circuits with professional multimeter IC as its
core, and has a full range overload protection.
The Meter measures or tests the following:
Item
Description
Qty
1
English Operating Manual
1 piece
1
Test Lead
1 pair
Deficiency of Built-In Battery
Grounding
AC (Alternative Current)
DC (Direct Current)
Double Insulated
Continuity Test
AC or DC
Diode
Conforms to Standards of European Union
⚠
Warning. Refer to the Operating Manual
1.
Indicates auto scan mode.
2
. High voltage indicator.
3
Data hold is activated.
4.
Indicates negative reading.
5.
The meter is in the autorange mode.
6.
Indicator for AC voltage.
7.
Indicator for DC voltage.
8.
The battery is low.
⚠
Warning:
To avoid false readings, which could lead to
possible electric shock or personal injury, replace the battery
as soon as the battery indicator appears.
9.
Minimum reading.
10.
Maximum reading.
11.
The unit of Capacitance.
12.
Test of diode.
13.
The continuity buzzer is on.
14.
V : Volts. The unit of voltage.
mV : Millivolt. 1x10 or 0.001 volts.
15.
Ω: Ohm. The unit of resistance.
kΩ : kilohm. 1x10 or 1000 ohms.
MΩ: Megaohm. 1x10 or 1,000,000 ohms.
Figure 2
Press
HOLD
to enter or exit hold mode (except in the auto
scan mode). Press and hold the
HOLD
button for more than
2 seconds, the meter will automatically holds the value
which is obtained 6 seconds later. At this time, is displayed
and starts flashing.
If it enters in the “sleep” mode while it is in the hold mode,
the meter will still be in the hold mode when it is turned on.
2. HOLD
The MAX/MIN mode stores the minimum (MIN) and
maximum (MAX) input values (except in the auto scan
mode). Manual ranging occurs when you select this
function.
Press
MAX/MIN
button MAX MIN MAX/MIN and vice
versa.
In the hold mode and max/min mode, you should exit the
hold mode first, then press and hold MAX/MIN for more
than 1 second to exit the max/min mode.
3. MAX/MIN
Display Backlight and test lead light button. Press the
button once to turn the display backlight and the test lead
light on and press again to turn the display backlight and
test lead light off. It will be automatically turned off after
approx. 1 minute.
4.
Measurement Operation
The buzzer sounds every time the button is effectively
pressed. When the meter will auto power off in 20 seconds,
the buzzer beeps three times. Before powering off, there will
be a long time buzzer beeps.
Before measurement, turn anticlockwise the blue cover and
rock the input terminal.
When all the measurement has been completed, turn
clockwise the blue cover and then hide the input terminal
(see figure 3).
Figure 3
6. BUZZER
⚠
Warning
To avoid harm to the Meter, never input higher than 300V
voltage, although it is possible to measure higher voltage.
To measure Voltage, connect the Meter as follows:
Set the switch to
V
Auto measurement mode is default. In this mode, you can
measure AC voltage and DC voltage.
Connect the test leads to the object being measured. The
measured value is shown on the display.
When voltage measurement has been completed,
disconnect the testing leads from the circuit under test,
and remove the testing leads from the input terminal of
the meter.
1. AC / DC Voltage auto Measurement.
Note:
The threshold voltage of AC voltage is around 400mV.
⚠
Warning
To avoid harm to the Meter, never input higher than 300V
voltage, although it is possible to measure higher voltage.
Set the switch to
V
Press SELECT to select DC voltage measurement mode.
Connect the test leads to the object being measured. The
measured value is shown on the display.
When voltage measurement has been completed,
disconnect the testing leads from the circuit under test,
and remove the testing leads from the input terminal of
the meter.
2. DC Voltage Measurement
⚠
Warning
To avoid harm to the Meter, never input higher than 300V
voltage, although it is possible to measure higher voltage.
Set the switch to
V
Press
SELECT
to select AC voltage measurement mode.
Connect the lest leads to the object being measured. The
measured value is shown on the display.
When voltage measurement has been completed,
disconnect the testing leads from the circuit under test,
and remove the testing leads from the input terminal of
the meter.
3. AC Voltage Measurement
Note:
The threshold voltage of AC voltage is around 400mV.
