Analogue Multimeters

A multimeter is an electronic measuring instrument that combines several measurement functions in one unit. A typical multimeter can measure voltage (AC or DC), current and resistance. Analogue multimeters use a microammeter with a moving pointer to display readings. The primary difference between a digital and analogue multimeter is the display, an analogue multimeter uses a needle to show the value, while a digital multimeter will show the results as numbers on a screen.

How do they work?

The Analogue Multimeter or VOM (Volt-Ohm-Milliammeter) is constructed using a moving coil meter and a pointer to indicate the reading on the scale. The moving coil meter consists of a coil wound around a drum placed between two permanent magnets. As current passes through the coil, a magnetic field is induced in the coil which reacts with the magnetic field of the permanent magnets and the resultant force causes the pointer attached to the drum to deflect on the scale, indicating the current reading. It also consists of springs attached to the drum with provides an opposing force to the motion of the drum to control the deflection of the pointer.

An analogue multimeter is used to check for AC or DC voltages, resistance and continuity of electrical components, and small amounts of current in circuits. This instrument will let you check to see if there is voltage present on a circuit. By doing so, a multimeter can help you achieve a variety of useful tasks, such as measuring ohms, volts, and amps. An analogue multimeter is a widely used piece of test equipment used by electronic technicians and engineers and can be used for testing batteries, household wiring, electric motors and power supplies.

Advantages
● Analogue movement: The meter needle gives a continuous movement from which it is very easy to gain a fast idea of the order of magnitude, or of trends for slowly moving changes.
● Availability: Analogue test meters may well be available when digital ones are not.
● Cost: Not expensive
● No battery required
Disadvantages
● Multiple scales: Any multimeter will have a number of different scales and these can cause confusion. They were often a cause of error.
● Lower input resistance: Using analogue technology, analogue multimeters did not provide such a high input impedance as a digital one. Understanding when this may be an issue is a key element of knowing how to use an analogue multimeter.
● Polarities of test leads: Analogue multimeters do not have an auto-polarity function. Therefore it is necessary to correctly connect the test leads, otherwise the meter could deflect in a negative direction and quickly hit an end stop.

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Description Price Calibrated Safety Category Maximum Current Measurement Best AC Current Accuracy Best DC Current Accuracy Maximum Voltage Measurement Best AC Voltage Accuracy Best DC Voltage Accuracy Maximum Resistance Measurement Best Resistance Measurement Accuracy Maximum AC Voltage Frequency Diode Test Capability Continuity Check Battery Type
RS Stock No. 219-434
Mfr. Part No.MX1
BrandMetrix
£182.52
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- CAT III 600 V 200A ac - - 1.5kV ±2.5 % ±2 % 20 kΩ ±10 % - Yes Yes AA
RS Stock No. 392-9184
Mfr. Part No.P01196521E
£172.00
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- CAT III 600 V 5A ac/dc ±2.5 % ±2.5 % 1000V ac/dc ±2.5 % ±1.5 % 1 MΩ ±10 % - - - AA
RS Stock No. 810-5535
Mfr. Part No.P01196521E
£237.00
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UKAS CAT III 600 V 5A ac/dc ±2.5 % ±2.5 % 1000V ac/dc ±2.5 % ±1.5 % 1 MΩ ±10 % - - - AA
RS Stock No. 810-5526
Mfr. Part No.P01196521E
£215.00
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RSCAL CAT III 600 V 5A ac/dc ±2.5 % ±2.5 % 1000V ac/dc ±2.5 % ±1.5 % 1 MΩ ±10 % - - - AA
RS Stock No. 225-993
Mfr. Part No.M113A
£472.15
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- CAT II 600 V, CAT III 300 V 10A - - 600V - - 20 MΩ - - - - 9V
RS Stock No. 437-6200
Mfr. Part No.M102A
£155.69
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- CAT III 300 V 3A ac/dc - - 300V - - 10 MΩ - - - - 9V
RS Stock No. 392-9207
Mfr. Part No.P01196311E
£415.00
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- CAT III 1000 V 10A ac/dc ±2.5 % ±2.5 % 1000V ac/dc ±2.5 % ±2.5 % 40 MΩ ±2.5 % - - Yes 9V
RS Stock No. 424-8076
Mfr. Part No.MX0001-M
BrandMetrix
£233.00
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- CAT III 600 V 10A ac/dc ±2.5 % ±2 % 1.5kV ac/dc ±2.5 % ±2 % 20 kΩ ±2.5 % 1kHz Yes Yes AA
RS Stock No. 327-8981
Mfr. Part No.M212A
£196.31
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- CAT II 600 V, CAT III 300 V 10A ±2% + 5 Digits ±1.5% + 5 Digits 600V ±1% + 10 Digits ±0.5% + 2 Digits 40 MΩ ±2% + 5 Digits - Yes Yes AA x 2
RS Stock No. 424-8919
Mfr. Part No.MX0001-M
BrandMetrix
£298.00
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UKAS CAT III 600 V 10A ac/dc ±2.5 % ±2 % 1.5kV ac/dc ±2.5 % ±2 % 20 kΩ ±2.5 % 1kHz Yes Yes AA
RS Stock No. 424-8903
Mfr. Part No.MX0001-M
BrandMetrix
£276.00
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RSCAL CAT III 600 V 10A ac/dc ±2.5 % ±2 % 1.5kV ac/dc ±2.5 % ±2 % 20 kΩ ±2.5 % 1kHz Yes Yes AA
RS Stock No. 493-8094
Mfr. Part No.M101A
£231.00
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- CAT II 500 V 15A - - 500V ±2 % ±2 % 1 MΩ - - - - AA
RS Stock No. 911-9787
Mfr. Part No.P01196523E
£364.00
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RSCAL CAT III 600 V 300A ac/dc ±2.5 % ±2.5 % 1000V ac/dc ±2.5 % ±1.5 % 1 MΩ ±10 % - - Yes 9V
RS Stock No. 392-9190
Mfr. Part No.P01196523E
£321.00
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- CAT III 600 V 300A ac/dc ±2.5 % ±2.5 % 1000V ac/dc ±2.5 % ±1.5 % 1 MΩ ±10 % - - Yes 9V
RS Stock No. 911-9780
Mfr. Part No.P01196523E
£386.00
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UKAS CAT III 600 V 300A ac/dc ±2.5 % ±2.5 % 1000V ac/dc ±2.5 % ±1.5 % 1 MΩ ±10 % - - Yes 9V
RS Stock No. 911-9734
Mfr. Part No.P01196521F
£274.00
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UKAS CAT III 600 V 5A ac/dc ±2.5 % ±2.5 % 1000V ac/dc ±2.5 % ±1.5 % 1 MΩ ±10 % - - - AA
RS Stock No. 392-9162
Mfr. Part No.P01196521F
£209.00
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- CAT III 600 V 5A ac/dc ±2.5 % ±2.5 % 1000V ac/dc ±2.5 % ±1.5 % 1 MΩ ±10 % - - - AA
RS Stock No. 911-9730
Mfr. Part No.P01196521F
£252.00
Each
Units
RSCAL CAT III 600 V 5A ac/dc ±2.5 % ±2.5 % 1000V ac/dc ±2.5 % ±1.5 % 1 MΩ ±10 % - - - AA
RS Stock No. 392-9178
Mfr. Part No.P01196523F
£358.00
Each
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- CAT III 600 V 300A ac/dc ±2.5 % ±2.5 % 1000V ac/dc ±2.5 % ±1.5 % 1 MΩ ±10 % - - Yes 9V
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