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3-Phase winding resistance meters ATRM 20/3 - 40/3 Amperis

Mã sản phẩm: ATRM 20/3 - 40/3
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Hãng SX: Amperis
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3-Phase winding resistance meters
Model: ATRM 20/3 - 40/3
Hãng: Amperis

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    • SĐT: 0984 843 683

    • Mail: info@ttech.vn

      • Zalo: 0984.843.683

Thông tin sản phẩm

The ATRM-20/3 and ATRM-40/3 are three phase transformer winding resistance meters that allow the user to connect all test cables to the transformer bushings. The unit will then measure the transformer resistance value for each of the phases without the need to disconnect and reconnect cables for each phase. The ATRM-20/3 and ATRM-40/3 can provide a fast and stable reading of very large transformers by utilizing a 60Vdc power supply. The ATRM-20/3 is capable of outputting a selectable test current from 1A to 20A while the ATRM-40/3‘s test current is selectable from 1A to 40A. Since both units can accurately measure resistance from 1 micro-ohm to 500 Ohms (up to 2000 Ohms for the ATRM-20/3), they can be used as micro-ohm meters to measure EHV circuit breaker contact resistance, or for any low resistance measuring application.


Thông số kỹ thuật


Type

Portable transformer winding resistance meter

Physical specifications

21”W x 17”H x 9” D (53 cm x 43 cm x 24 cm); Weight: 35 lbs (15.8 kg)

Operating voltage

100 - 240 Vac, 50/60 Hz

Resistance reading range

ATRM-20: 1 micro-ohm - 2000 ohms; ATRM-40: 1 micro-ohm - 500 ohms

Accuracy

1 - 19,999 micro-ohms: ±0.5% reading, ±1 count;

20 - 999 milli-ohms: ±1% reading, ±1 count;

1- 2000 ohms: ±1.5% reading, ±1 count

Test current

ATRM-20: 1A ¬ 20A in 1A increments; ATRM-40: 1A ¬ 40A in 1A increments

Test voltage

60Vdc charging, 18V DC max during measurement

Resistance channels

4 input channels for measuring resistance

Display

Back-lit LCD screen (128 x 64 pixels); viewable in bright sunlight and low light conditions

Printer

Built-in 2.5-inch wide thermal printer

Internal data storage

256 static test records (each can contain up to 111 readings) and 120 dynamic test records

External data storage

Up to 999 test records on external USB Flash drive

Computer interface

RS-232C, USB, and Bluetooth

Safety

Designed to meet UL 61010A-1 and CAN/CSA C22.2 No. 1010.1-92 standards

Environment

Operating: -10°C to +50°C (+15°F to +122°F); Storage: -30°C to +70°C (-22°F to +158°F)

Humidity

90% RH @ 40°C (104°F) non-condensing

Altitude

2,000 m (6,562 ft) to full safety specifications

Cables

Four 50-foot test cables, one LTC control cable, one ground cable, one power cord, one USB cable

Optional accessories

Transportation case

Warranty

1 year on parts and labor



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