Isotech IDM101 Manuale utente
Instruction Manual
IDM101 Digital Multimeter
EN FR IT DE JP
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ISO - TECH IDM101
Digital Multimeter
INSTRUCTION MANUAL
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1. Safety notes
This meter has been produced to comply with category II requirements under IEC publication 1010-1 "Safety requirements
for electrical equipment for measuring, monitoring and laboratory use".
The present operating manual gives directions which must be followed and points out precautions which must be taken if the
meter is to be used safely and kept in a safe state.
Terms used in the operating manual.
"Important" identifies conditions or operations in which there is a possibility of the multimeter or other equipment being
damaged.
"Warning" identifies conditions or operations in which there is a possible risk of injury or death.
Markings on the unit.
Attention — Follow the operating instructions.
Danger — Dangerous voltages may occur at these connections.
Symbol for double insulation
Symbols in operating manual
This symbol indicates important information.
Fuse
Battery
WARNING : To avoid hazards or the risk of electric shock or of the multimeter being damaged, voltages which may
exceed which may exceed 600Vd.c. or 600Vrms should not be measured. Never apply voltages of more
than 600Vd.c. or 600Vrms to earth to the "COM" input terminal.
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Important : To avoid damage to the meter,
– remove the probes from the item being measured before you change the function settings,
– never try to measure voltages which may exceed 600V or 600Vrms,
– and never try to measure voltages when the meter is set to the resistance measuring function (Ω).
Always use the fuses specified.
To avoid the risk of fire, you should only use fuses of the correct types of the voltage and current ratings specified on the
bottom of the meter.
It is strictly forbidden for "repaired" fuses to be used or for the fuse holders to be shorted out.
WARNING: Read this operating manual thoroughly before you use the meter and follow the instructions given in it when
you are using the meter.
Misunderstandings of the warnings given or the operating instructions and errors in following them may cause hazards or
serious injury and/or may result in damage to the meter or other equipment.
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2. Introduction
This multimeter is a compact, battery-powered, handheld measuring and testing device for service engineers, industrial use
and amateur electronics engineers and for testing and repairing pieces of equipment. The functions it can perform are as
follows:
Measurement of a.c. and d.c. voltages
Measurement of a.c. and d.c. currents
Measurement of resistance and capacitance
Continuity testing
Diode testing
Frequency and ADP measurement.
Unpacking and checking
When you unpack your new multimeter, the items you should have are these:
1. Digital multimeter
2. Set of test leads (one black and one red)
3. Operating manual
4. Batteries (fitted)
5. Rubber holster.
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3. Technical specification
3.1 General specification
This meter has been produced to comply with category II requirements under IEC publication 1010-1 "Safety requirements for
electrical equipment for measuring, monitoring and laboratory use". This standard of safety can only be guaranteed if the
maximum and minimum figures specified in section 2.2 are observed.
Display : 33⁄4 digit 4000 count LCD display with a 42-segment analog bargraph display. Higher resolution of up to 9999 in
frequency range.
Polarity indication : Automatic, positive if nothing indicated, negative indicated
Low battery voltage indication: "" shown if the voltage from the batteries drops below the operating voltage.
Range overrun : Highest digit flashes.
Display update rate Two per second for digital display,
20 per second for bargraph display.
1 per second for frequency measurements.
Automatic power off : Approx. 30 minutes after the function switch was last turned.
3.2 Ambient conditions
Maximum altitude : 2000m
Installation category : IEC1010 1000V category II
600V category III
Pollution degree : 2
Operating temperature : 0 to +50°C, 0 to 80% RH.
Storage temperature : –20 to +60°C, 0 to 80% RH (batteries not fitted)
Temperature coefficient : 0.15 x specified accuracy/°C, <19°C or >28°C
Supply required : Two 1.5V batteries (IEC LR03, AM4 or AAA)
Battery life (alkaline) : Typically 1000 hours
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Dimensions (L x B x H(mm)) : 185 x 86 x 32,
with rubber holster: 200 x 98 x 52
Weight (inc. batteries) : 0.37kg
with rubber holster 0.6kg
Accessories : Rubber holster, test leads, batteries (fitted) and operating manual.
3.3 Electrical specification
Accuracy is given as ± (measurement error + display error) and applies at 23°C ± 5°C and less than 80% RH.
Measurement error (%) is given as a percentage of the current measurement.
Display error (D) is given in units equal to the smallest increment able to be shown on the display.
3.3.1 D.c. voltage (Vd.c.)
Range Resolution Accuracy Over Voltage
protection
400mV 0.1µV ±(0.7% + 2D)
600Vd.c. or
600V rms
4V 1mV
40V 10mV
400V 100mV
600V 1V
±(0.5% + 2D)
Input impedance: 10MΩ.
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3.3.2 A.c. voltage (Va.c.)
Range Resolution Accuracy Over Voltage
protection
600Vd.c. or
600V rms
4V 1µV ±(1% + 5D)
50 to 60Hz
±(1.5% + 5D)
50 to 60Hz
40V 10µV
400V 100mV
600V 1V
Input impedance: 10MΩin parallel with less than 100pF.
A.c. voltage conversion: Mean measured - r.m.s. value displayed.
3.3.3 D.c. current (Ad.c.)
Range Resolution Accuracy Voltage drop
4mA 1µA
±(0.8% + 2D)
40mA 10µA
400mA 0.1mA
10A 10mA ±(1.5% + 4D) 1V (max.)
800mV (max.)
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3.3.4 A.c. current (Aa.c.)
Range Resolution Accuracy Voltage drop
4mA 1µA
±(1.5% + 5D)
40Hz to 1KHz
40mA 10µA
400mA 0.1mA
10A 10mA ±(2.5% + 5D)
40Hz to 1KHz 1V (max.)
800mV (max.)
Overload protection : mA jack: 1A/415V, 32 x 6.35mm quick-acting fuse.
A input terminal : 10A/415V, 32 x 6.35mm quick-acting fuse.
A.c. current conversion : Mean measured - r.m.s. value displayed.
3.3.5 Resistance (Ω)
Range Resolution Accuracy Overload protection
400Ω0.1Ω±(0.7% + 3D)
600Vd.c. or
600V rms
4kΩ1Ω
40kΩ10Ω
400kΩ100Ω
4MΩ1kΩ±(1.0% + 3D)
40MΩ10kΩ±(2.0% + 5D)
±(0.7% + 2D)
Open circuit voltage : 0.4V
Indice
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