strex SP45 Bedienungsanleitung
DIGITAL MULTIMETER
INSTRUCTION MANUAL SP45
Thanks for choosing Strex! Read the manual carefully, for
correct and safe operation of the product. Always follow these
instructions for safe usage.
If you have any questions about the product or encounter
English
Nederlands
STREX
INTRODUCTION
Getting started
WARNING
Thanks for choosing Strex! Read the manual carefully, for correct and safe operation of the
product. Always follow these instructions for safe usage.
If you have any questions about the product or encounter problems,
The illustrations in this manual have been created with care. However, some parts of the
product may dier from the illustration shown in this manual. In that case, Strex is not obliged
to adjust the part or the manual.
This manual is intended for the end user of the product. Using the table of contents on the next
page you can nd the necessary information in the manual.
2
Improper use of this product and accessories are dangerous to you
and others and can damage, destroy or cause a serious accident. We
therefore ask you to read the manual carefully and to read and strictly
observe the danger, safety and warning messages.
Strex Multimeter
The Strex Multimeter comes in handy for your electrical job in and around the house. With this
digital meter you can measure or test all kinds of parameters. It has an illuminated display with
data hold function. This makes it easy to read your measurement values, even after you have
broken the connection between your test needles and the material to be measured. Due to its
compact size you can take it with you everywhere quickly and easily. With this universal meter
you can perform a voltage, amperage, diode test, continuity test, transistor measurement and
more. The Strex Multimeter ensures that your electricity is and remains properly connected.
INDEX
SAFETY INFORMATION------------------------------------------------------- 3
DURING USE-------------------------------------------------------------------- 4
GENERAL DESCRIPTION----------------------------------------------------- 4
FRONT PANEL ------------------------------------------------------------------ 5
FRONT PANEL DESCRIPTION----------------------------------------------- 6
SPECIFICATIONS --------------------------------------------------------------- 6
DC VOLTAGE --------------------------------------------------------------------7
DC CURRENT ------------------------------------------------------------------- 7
ACVOLTAGE --------------------------------------------------------------------8
RESISTANCE --------------------------------------------------------------------8
DIODE -------------------------------------------------------------------------- 8
TRANSIROT hFE TEST ( 0-100) --------------------------------------------- 8
OPERATING INSTRUCTIONS ---------------------------------------------- 9
BATTERY & FUSE REPLACEMENT------------------------------------------11
NEDERLANDSE HANDLEIDING--------------------------------------------13
SAFETY INFORMATION
SAFETY SYMBOLS
MAINTENANCE
This multi meter has been designed according to IEC -1010 concerning electronic measuring
instruments with an overvoltage category (CAT n) and pollution 2.
Follow all safety and operating instructions to ensure that the meter is used safely and is kept in
good operating condition.
Full complianca with safety standards can be guaranteed only with test leads supplied. If necessary,
they must be replaced with the type specied in this manual.
Important safety information, refer to the operating manual.
Dangerous voltage may be present .
Earth ground.
Double insulation (protection class II).
Fuse must be replaced with rating specied in the manual.
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●Before opening the case, always disconnect test leads from all energized circuits.
●For continue protection against re: replace fuse only with the specied voltage and current
ratings : F 200mA/250V(Ouick Acting)
●Never use the meter unless the back cover is in place and fastened completely.
●Do not use abrasives or solvents on the meter. To clean It using a damp cloth and mild detergent
only.
GENERAL DESCRIPTION
The meter is a handheld 31/2 digital multimeter for measuring DC and AC voltage, DC current,
Resistance, Diode and Transisto. This multimeter is powered by a 9V battery (included)
DURING USE
●Never exceed the protection limit values indicated in specications for each range of
measurement
●When the meter is linked to measurement circuit, do not touch unused terminals.
●Never use the meter to measure voltages that might exceed 600V above earth ground in
category II installations.
●When the value sclae to be measured is unknown beforehand, set the range selector at the
highest position .
●Before rotating the range selector to change functions , disconnect test leads from the circuit
under test.
●When carrying out measurements on TV or switching power circuits always remember that there
may be high amplitude voltages pulses at test points. which can damage the meter.
●Always be careful when working with voltages above 60V de or 30V ac rms . Keep ngers behind
the probe barriers while measuring.
●Before attempting to insert transistors for testing. always be sure that test leads have been
disconnected from any measurement circuits.
●Components should not be connected to the hFE socket when making voltage measurements
with test leads.
●Never perform resistance measurements on live circuits.
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FRONT PANEL
6
3
46
1
5
2
FRONT PANEL DESCRIPTION
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Display
Rotary switch
Hold button
“ 10A” jack
“ COM “ jack
“ VOmA” jack
3 1/2 digit, 7 segment, 15mm high LCD.
This switch is used to select functions and desired ranges as well as to turn on/o the meter.
When this button is pushed, the display will keep the last reading and “• “ symbol will appear on the
LCD until pushing it again.
Plug in connector for red test lead for 10 A measurement.
Plug in connector for black (negative) test lead.
Plug in connector for red (positive) test lead for voltage, resistance and current (except 1 OA)
measurements.
1.
2.
3.
4.
5.
6.
SPECIFICATIONS
Accuracy is specied for a period of one year after calibration and at 18 to 28°C (64”F to 82’F) with
relative humidity to 80%.
GENERAL
Maximum voltage between
terminals and earth ground
CAT11600V
Fuse protection F 200mA/250V
Power 9V battery, NEDA 1640 or 6F22
Display LCD, 1999 counts, updates 2-3/ sec.
Measuring method Dual-slope integration AID converter
Overrange Indication Only gure “ 1 “ on the display
Polarity indication “- “ displayed for negative polarity
Operating Environment O to 40” C
Storage temperature - 10 “C toso·c
Low battery indication ” “ appears on the display
Size 138mm X 69mm X 31mm
Weight Approx.160g
DC VOLTAGE
DC CURRENT
8
Range Resolution Accuracy
200mV 100µN ±0.5% of rdg ± 2 digits
2V 1mV ±0.5% of rdg ± 2 digits
20V 10mV ±0.5% of rdg ± 2 digits
200V 100mV ±0.5% of rda ± 2 digits
600V 1V ±0.8% of rda ± 2 digits
Range Resolution Accuracy
200µA 0 1µA ±1% of rdg ± 2 digits
2mA 1µA ±1% of rdg ± 2 digits
20mA 10µA ±1% of rdg ± 2 digits
200mA 100µA ±1 .5% of rdg ± 2 digits
10A 10mA ±3% of rdg ± 2 digits
Overload Protection: 250V rms. For 200mV range and 600V de or rms. ac for other ranges .
Overload Protection F 200mN250V fuse . ( 1 OA range unfused)
AC VOLTAGE
DIODE
TRANSIROT hFE TEST ( 0-100)
RESISTANCE
Range Resolution Accuracy
200V 100mV ±1 .2% of rdg ± 10 digits
600V 1V ±1 .2% of rdg ± 10 digits
Range Description
-->+ Show the approx. forward voltage drop of the diode.
Range Test Range Test Current Test Voltage
NPN & PNP 0-1000 Ib-10µA Vce=3V
Range Resolution Accuracy
200Ω 0.1Ω ±0.8% of rdQ ± 3 digits
2KΩ 1Ω ±0.8% of rdg ± 3 digits
20KΩ 10Ω ±0.8% of rdg ± 3 digits
200KΩ 100Ω ±0.8% of rdg ± 3 digits
2MΩ 1KΩ ±0.8% of rdg ± 3 digits
Overload protection : 600V de or rms. ac for all ranges. Frequency range : 40Hz to 400Hz ,
Response: Average responding, calibrated in rms. of a sine wave.
Overload Protection: 250V de or rms. ac.
Maximum open Circuit Voltage: 3.2V
Overload Protection: 250,V de or rms. ac for all ranges.
OPERATING INSTRUCTIONS
1.
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1.
2.
2.
3.
3.
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3.
4.
4.
4.
Connect the red test lead to the “ V.Q.mA “ jack· and the black lead to the “COM” jack.
Connect the red test lead to the “V.Q.mA” jack and the black test lead to “ COM” jaCk.
(For measurements between 200mA and lOA, remove red lead to “1 OA “ jack.)
Connectthe red test lead to “ V.Q.mA “ jack and the black test lead to the “ COM “
jack.
Set the rotary switch at the desired DCA position.
Set the rotary switch at desired ACV position .
Open the circuit in which the current is to be measured. And connect test leads in
series with the circuit
Connect test leads across the source or load being measured.
Set rotary switch at desired DCV position, If the voltage to be measured is not known
beforehand , set range switch at the highest range position and then reduce it until
satisfactory resolution is obtained .
Connect test leads across the source or load being measured.
Read voltage value on the LCD display along with the polarity of the red lead connection.
Read current value on LCD display along with the polarity of red lead connection.
Read voltage value on the LCD display.
10
DC VOLTAGE MEASUREMENT
OCCURRENT MEASUREMENT
AC VOLTAGE MEASUREMENT
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