# Instruments for electrical measurements

These are precision instruments (cl. 0.5) designed and manufactured to be used in the laboratory for electrical engineering. The self-consumption and the response times of the meters are reduced to the minimum, and these are light and damped, resistant to shocks and vibration. The instruments are fitted inside containers made with impact resistant and shockproof material. The scales are traced with a high number of divisions: some instruments have more scales to avoid the use of multiplication factors. The moving iron instruments are shielded against external magnetic and hysteresis free fields and can be used in DC and CA, keeping within the precision class.

The following instruments are available:

- Ammeters

- Voltmeters

- Wattmeters

- Power factor meters

- Frequency-meters

- Galvanometers

- Ammetric transformers

- Shunts

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Moving coil ammeter mod. LCA-1 For DC measurements. Accuracy: ±0.5% Ranges: 0.6-1,2-3-6-12-30-60-120 mA (60mV range for the shunt SH-2)

MOVING COIL AMMETER mod. LCA-2 For DC measurements. Accuracy: ±0.5% Ranges: 60-120-300-600 mA – 1.2-3-6 A (60mV range for the shunt SH-2)

SHUNT mod. SH-2 Range 60 mV, it extends the measurement scale to 12-30- 60-120 A

MOVING COIL VOLTMETER mod. LCV-1 For DC measurements. Accuracy: ±0.5% Ranges: 60-120-300-600 mV 1.2-3-6 V

MOVING COIL VOLTMETER mod. LCV-2 For DC measurements. Accuracy: ±0.5% Ranges: 6-12-60-120-300-600 V

MOVING COIL AMMETER mod. LAA-1 For DC and AC measurements. Accuracy: ±0.5% Ranges: 60-120-300-600 Ma

MOVING COIL AMMETER mod. LAA-2 For DC and AC measurements. Accuracy: ±0.5% Ranges: 0.6-1.2-3-6 A

MOVING COIL VOLTMETER mod. LAV-1 For DC and AC measurements. Accuracy: ±0.5% Ranges: 3-6-12-30 V

MOVING COIL VOLTMETER mod. LAV-2 For DC and AC measurements. Accuracy: ±0.5% Ranges: 60-120-300-600 V

ELECTRODYNAMIC WATTMETER WITH POWER FACTOR 1 mod. LW-5/480 for DC and AC measurements. Accuracy: ±0.5% Ranges: 48-120-240-480 V / 2.5-5 A

ELECTRODYNAMIC WATTMETER WITH POWER FACTOR 1 mod. LW-1/600 For DC and AC measurements. Accuracy: ±0.5% Ranges: 75-150-300-600 V / 0.5-1 A

ELECTRODYNAMIC WATTMETER WITH POWER FACTOR 1 mod. LW-10/600 For DC and AC measurements. Accuracy: ±0.5% Ranges: 75-150-300-600 V / 5-10 A

ARTIFICIAL STAR POINT mod. RH-2/480 (for wattmeters mod. LW-5/480). Accuracy: 0.5% Voltmetric ranges: 48-120-240-480 V

ARTIFICAL STAR POINT mod. RH-2/600 (for wattmeters mod. LW-1-10/600). Accuracy: 0.5% Voltmetric ranges: 75-150-300-600 V

ELECTRODYNAMIC WATTMETER WITH POWER FACTOR 0.2 mod. LW0,2-5/480 For DC, AC and low power factor measurements. Accuracy: ±0.5% Ranges: 48-120-240-480 V / 2.5-5 A

ELECTRODYNAMIC WATTMETER WITH POWER FACTOR 0.2 mod. LW0,2-1/600 For DC, AC and low power factor measurements. Accuracy: ±0.5% Ranges: 75-150-300-600 V / 0.5-1 A

ELECTRODYNAMIC WATTMETER WITH POWER FACTOR 0.2 mod. LW0,2-10/600 For DC, AC and low power factor measurements. Accuracy: ±0.5% Ranges: 75-150-300-600 V / 5-10 A

CENTRAL ZERO GALVANOMETER mod. LCG-1 Accuracy: ±0.5% Ranges:±250-50–25–5μA

CENTRAL ZERO GALVANOMETER mod. LCG-2 Accuracy: ±0.5% Ranges: ±2500 - 500 - 250 – 50 μA

ELECTRODYNAMIC THREE-PHASE POWER FACTOR METER mod. COS-3/1 Accuracy: ±0.5% Voltage: 250-500 V – current: 2.5-5 A Scale: 0-1(rit.)

ELECTRODYNAMIC THREE-PHASE POWER FACTOR METER mod. COS-3/2 Accuracy: ±0.5% Voltage: 250-500 V – current: 2.5-5 A Scale: 0.2 (rit.)-1-0.8 (ant.)

ELECTRODYNAMIC THREE-PHASE POWER FACTOR METER mod. COS-3/3 Accuracy: ±0.5% Voltage: 250-500 V current: 2.5-5 A Scale: 0.5 -1-0.5

ELECTRODYNAMIC THREE-PHASE POWER FACTOR METER mod. COS-1/1 Accuracy: ±0.5% Voltage: 250 V – current: 2.5-5 A Scale: 0-1(rit.)

ELECTRODYNAMIC THREE-PHASE POWER FACTOR METER mod. COS-1/2 Accuracy: ±0.5% Voltage: 250 V – current: 2.5-5 A Scale: 0.2 (rit.)-1-0.8 (ant.)

ELECTRODYNAMIC SINGLE-PHASE POWER FACTOR METER mod. COS-1/3 Accuracy: ±0.5% Voltage: 250 V – current: 2.5-5 A Scale:0.4-1–0.4

VIBRATING REED FREQUENCY-METER mod. F-1 Accuracy: ±0.5% 1 row of 25 vibrating reeds Voltage: 110-160-220-300-380-500 V Scale: from 44 to 56 Hz

VIBRATING REED FREQUENCY-METER mod. F-2 Accuracy: ±0.5% 1 row of 25 vibrating reeds Voltage: 110-160-220-300-380-500 V Scale: from 54 to 66 Hz

VIBRATING REED FREQUENCY-METER mod. F-3 Accuracy: ±0.5% 2 rows of 25 vibrating reeds Voltage: 110-160-220-300-380-500 V Scale:from44to56Hzandfrom54to66Hz

POINTER-TYPE FREQUENCY METER mod. F-4 Accuracy: ±0.5% Voltage: 110-160-220-300-380-500 V Scale: from 30 to 70 Hz

PORTABLE MEASUREMENT TRANSFORMER mod. TA-1 Accuracy ±0,5% Primary ranges: 12-30-60 A terminals, 120-180-360 with clearance hole; secondary range: 6 A

PORTABLE MEASUREMENT TRANSFORMER mod. TA-2 Accuracy: ±0.5% Primary ranges: 5-10-20 A terminals, 50-75-100-150-300 with clearance hole; secondary range: 5 A

PORTABLE MEASUREMENT TRANSFORMER mod. TA-3 Accuracy: ±0.5% Primary ranges: 2.5-5-10-25-50 A terminals, 100-150-300 A with clearance hole; secondary range: 5 A