LABORATORY INSTRUMENTS Class 0,5


Common features
1- AC and DC Voltmeters
2- AC and DC Ammeters
3- Electrodynamics Power Meter
4- Electrodynamics Frequency Meter
5- 1phase and 3phase Power Factor Meters
6- Current Transformers T.A.
7- Shunt
8- ARON Measure System
9- Phase Sequence Indicator


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Technical characteristics
These instruments are studied and realised for the employment in electrotechnics laboratory or in electronics laboratory.
The absorption and the recovery times of the pointer ( which are particularly light and lower), are negligible.
This technique leaded also to avoid the deterioration of pivots caused by shakes or vibrations.
The suspensions are on sprung sapphires with short excursion, and for this reason, the instruments can be considered shockproof.
The instruments case is strong enough to garantee the resistence against strikes and falls, because it is made with a thermosetting material.
The scales are drew with an high number of divisions and lots of instruments have more scales in the way to avoid the adoption of unconfortable constants.
In general, it is enough to do simple operations like x2,x1, :2 and an abacus supplies (on the instruments scales with lots of Range), the constants to multiply the reading, based on nominal values of V and I.
This is a very usable result in the didactic employment.
The knife pointer and the mirror scale avoid the parallax reading error.


AC and DC Voltmeters
Code Precision Mod. Range
LAV1
0,5
mobile iron dc/ac
3-6-12-30V
LAV2
0,5
mobile iron dc/ac
60-120-300-600V
LCV1
0,5
mobile bobbin dc
60-120-300-600mV-1,2-3-6V
LCV2
0,5
mobile bobbin dc
6-12-30-60-120-300-600V

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AC and DC Ammeters
Cod. Precision Mod. Range
LAA1
0,5
mobile iron dc/ac
60-120-300-600mA
LAA2
0,5
mobile iron dc/ac
0,6-1,2-3-6A
LAA3
1
mobile iron dc/ac
60-120-300mA -0,6-1,2-3-6A
LAA4
1
mobile iron dc/ac
0,2-1-5-15-30A
LCA1
0,5
mobile bobbin dc
15-30-75-150-750-300-1500µA
LCA2
0,5
mobile bobbin dc
60-120-300-600mA-1,2-3-6A

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Electrodynamic Power Meter for dc and ac
Cod. Range Voltm. Range Amper. Class/CosŲ
LW5/480
12-24-48-120-240-480V
0,5-1-2,5-5A
0,5 / 1
LW5/600
15-30-75-150-300-450-600V
0,5-1-2,5-5A
0,5 / 1
LW10/480
48-120-240-480V
10 A
0,5 / 1
LW10/600
15-30-75-150-300-450-600V
5-10A
0,5 / 1
LW5/520
6-12-24-36-48-60-120-240-360-480-600V
3Ph: 13-26-52-104-208-416-520V
0,05-0,1-0,5-
1-2,5-5A
1 / 1
LW10/520
15-30-75-150-300-450-600V
3Ph: 65-130-260-390-520V
5-10A
1 / 1
LW20/416
12-24-60-120-240-360-480V
3Ph: 104-208-416V
1-5-10-20A
1 / 1
LW1/480-02
15-30-60-120-240-360-480V
3Ph: 52-104-208-416V
0,5 - 1 A
1 / 0,2
LW5/480-02
15-30-60-120-240-360-480V
3Ph: 52-104-208-416V
2,5 - 5A
1 / 0,2
LW1/600-02
15-30-75-150-300-450-600V
0,5 - 1 A
1 / 0,2
LW5/600-02
15-30-75-150-300-450-600V
2,5 - 5A
1 / 0,2

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Frequency Meter
LFI Pointer Frequencymeter
Range: 30 - 70 Hz;
Voltage: 100 - 500V


FC 2 Reed frequencymeter
25 reeds; - 54-66Hz;
Voltage: 110 - 160 - 220 - 300 - 380 -500V


FC 3 - Reed frequencymeter (twice reeds)
50 reeds; 44 - 56Hz e 54 - 66Hz;
Voltage: 110-160-220-300-380-500V

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Electrodynamics Power Factor Meters
Code Mod Voltage Current CosØ
LCOS1-1
1F/3F
150-300-450-600 V
1A
0,4ind. - 1 - 0,4 cap.
LCOS1-2
1F/3F
150-300-450-600 V
5 A
0,4ind. - 1 - 0,4 cap.
LCOS1-3
1F/3F
150-300-450-600 V
10A
0,4ind. - 1 - 0,4 cap.
LCOS3-1
1F/3F
150-300-450-600 V
1-5A
0,4ind. -1-0,4 cap.
LCOS3-2
1F/3F
150-300-450-600 V
5-10A
0,4ind.-1-0,4 cap.
LCOS3-3
1F/3F
120-240-380 V
1-5-10A
0,4ind. - 1 - 0,4 cap.

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