Morris 57266 Manual de usuario
OPERATOR’S #57266
INSTRUCTION MANUAL
OPEN JAW DIGIT ELECTRICAL TESTER
CONTENTS PAGE
SAFETY INFORMATION.……..………………….
SYMBOL EXPLANATION ………………………...
SAFETY PRECAUTIONS …………………………
MAINTENANCE ...……………………………….…
GENERAL DESCRIPTION ……………………..
PANEL DESCRIPTION ……....……………….…..
OPERATING INSTRUCTIONS ...…..…………….
SPECIFICATIONS ...…...……………..…………...
AUTO POWER OFF………………………………..
REPLACING THE BATTERY..….………………..
ACCESSORIES..………………..………………...
1
2
2
4
4
5
10
15
18
18
19
SAFETY INFORMATION
The open jaw digit electrical tester has been designed
according to IEC1010 – 1 and IEC1010 – 2 – 032
concerning safety requirements for electrical measuring
instruments and hand – held current clamps with an
overvoltage category (CAT III) and pollution 2.
The open jaw digit electrical tester complies with the
requirements of the following European Community
Directives: 89/336/EEC ( Electromagnetic Compatibility )
and 73/23/EEC (Low Voltage) as amended by 93/68/EEC
(CE Marking).
However, electrical noise or intense electromagnetic
fields in the vicinity of the equipment may disturb the
measurement circuit. Measuring instruments will also
respond to unwanted signals that may be present within
the measurement circuit.
Users should exercise care and take appropriate
precautions to avoid misreadings.
-1-
SYMBOL EXPLANATION
Important safety information, refer to the
operating manual.
Dangerous voltage may be present.
Earth ground.
Double insulation (Protection class II).
AC –Alternating Current.
DC – Direct current.
Battery.
Conforms to European Union directives.
SAFETY PRECAUTIONS
Follow all safety and operating instructions to ensure
maximum personal safety during the operation and to
ensure the meter is used safely and is kept in good
operating condition.
-2-
•
•
•
•
•
•
•
Read these operating instructions thoroughly and
completely before operating your meter. Pay
particular attention to WARNINGS, which will
inform you o
f potentially dangerous procedures.
Follow the instructions in these warnings.
Always inspect your meter and test leads for any
sign of damage or abnormality before every use. If
any abnormal conditions exist (i.e. broken test
leads, cracked cases, display not reading, etc.), do
not attempt to take any measurements.
Do not expose the instrument to direct sunlight,
extreme temperature or moisture.
Never ground yourself when taking electrical
measurements. Do not touch exposed metal pipes,
outlets, fixtures,
etc., which might be at ground
potential. Keep your body isolated from ground by
using dry clothing; rubber shoes, rubber mat, or
any approved insulating material.
Always be
careful when working with voltages
above 60V dc or 30V ac rms. Keep fingers behind
the probe barriers while measuring.
Never use the meter to measure voltages that
might exceed the maximum allowable input value
of any function.
Never touch exposed wiring, connections or any
live circuit when attempting to take measurements.
-3-
MAINTENANCE
•
•
•
•
Before opening the case, always disconnect test
leads from all energized circuits.
Never use the meter unless the back cover is in
place and fastened completely.
Do not use abrasives or solvents on the meter.
Clean using a damp cloth and mild detergent only.
Qualified and trained service technicians should
only perform calibration and repair of the meter.
•Do not attempt calibration or service unless trained
and another person capable of rendering first aid
and resuscitation is present.
GENERAL DESCRIPTION
The meter is an autorange professional open jaw digit
electrical tester with 3999 counts. For measuring DC and
AC voltage, AC current, Resistance, Capacitance,
Frequency, duty cycle, Diode and Continuity Test with
battery operated.
-4-
PANEL DESCRIPTION
1.
2.
3.
4.
4.1
4.2
Transformer jaws
Pick up the AC current flowing through the
conductor.
Hold button
When this button is pushed, the display will keep
the last reading and “ ”symbol will appear on
the LCD until pushing it again.
When this button is pressed more than two
second, the light of display is on until pressing it
more than two second again.
Rotary switch
This Rotary Switch is used to select functions
and power supply of the meter on or off.
Function button
F. Func.
In
Ω
range, press this button to select
or
Ω
function. Different symbol of function
will appear on the LCD.
R. Range
Press this button to select auto and manual
range. When
a function with auto and manual
mode is selected, the meter enters auto range at
first. To change to manual range, push this button
once.
-5-
4.3
4.4
5.
When the meter operates in manual ranging
mode, push this button to change range to the
higher one and hold this button for more than 3
seconds to return to auto range mode.
∆
REL
Push the button to get relative measurement
mode, “REL” annunciate display on LCD. But
store the displayed reading as a reference value.
In the Relative mode
, the value shown on the
LCD is always the difference between the stored
reference value and the present reading. If the
new reading is the same as the reference value,
the display will be zero.
% Hz
Push the button to select frequency or duty cycle
measurement.
LCD DISPLAY
-6-
Lowbattery indication
Auto range indication
Relative measurement indication
Hold data indication
DC input indication
AC input indication
Diode test indication
Continuity indication
Polarity indication
n
µ
F
Capacitance measurement unit
kM
Ω
Ohm measurement unit
Hz
Frequency measurement unit
mVA
Current measurement unit
%
Duty cycle measurement indication
6.
7.
“V
Ω
Hz” jack
This is positive input terminal for volt, diode,
resistance，frequency, duty cycle and capacitance
measurement connection is made to it using the
red test lead.
“COM” jack
This is negative (ground) input terminal for all
measurement modes except current. Connection
is made to it using the black test lead.
-7-
LAYOUT (FORWARD)
-8-
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