Thiết bị đo điện trở đất SONEL MRU-21 | EMIN.VN

Thiết bị đo điện trở đất SONEL MRU-21

Name: Thiết bị đo điện trở đất SONEL MRU-21
Brand: SONEL

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Hãng sản xuấtSONEL

ModelMRU-21

Liên hệ

Số lượng

Thanh toán an toàn

Hỗ trợ chuyên nghiệp

Đổi trả dễ dàng

Giao hàng tận nơi

Máy đo điện trở đất và điện trở suất Sonel MRU-21 có các thông số kỹ thuật sau:

Possible measurements:

earth resistance measurment with 3-pole method,
measurement of continuity of equipotential bondings and protective conductors with auto-zero function - with current 200mA,
resistance measurement using 2-pole method.

Measurement of earthing resistance
measurement range to IEC61557-5:
0,50Ω...1,99kΩ for Un=50V;
0,68Ω...1,99kΩ for Un=25V;

Range	Resolution	Accuracy
0,00...9,99Ω	0,01Ω	±(2% m.v. + 3 digits)
10,0...99,9Ω	0,1Ω
100...999Ω	1Ω
1,00k...1,99kΩ	0,01kΩ

• measurement current: under short circuit >20mA,
• voltage on open terminals: selectable <25v ac="" or="" 50v="" ac="" br=""> • frequency of measurement current: 125Hz

Measurement of interference voltage U_N (RMS)

Range	Resolution	Accuracy
0...100V	1V	±(2% m.v. + 3 digits)

• measurement for DC and AC 45…65 Hz

Measurement of resistance of auxiliary electrodes R_H i R_S

Range	Resolution	Accuracy
0...999Ω	1Ω	±(5% (R_S+R_E+R_H) + 3 digits)
1,00k...9,99kΩ	0,01kΩ
10,0k...19,9kΩ	0,1kΩ

Measuremet of continuity of equipotential bondings and protective conductors
measurement range to IEC61557-4: 0,13Ω...199Ω

Range	Resolution	Accuracy
0,00...9,99Ω	0,01Ω	±(2% m.v. + 3 digits)
10,0...99,9Ω	0,1Ω
100...199Ω	1Ω

• measuring method: technical 2-pole method,
• max. voltage on open terminals: 13V,
• measurement current: under short circuit >200mA,
• auto-zero function for measurement leads

Electric security:
- type of insulation: double, according to PN-EN 61010-1and IEC 61557
- measurement category: CAT IV 300V acc. to PN-EN 61010-1
- protection class acc. to EN 60529: IP54

Rated operational conditions:
- operation temperature: -10...+55°C
- storage temperature: -20...+70°C
- humidity: 20...80%

Other technical data:
- LCD display: segment, backlit
- interface: USB,
- number of measurements carried out of set of batteries: > 1000 (5Ω, 2 meas./min.)
- warranty: 3 years
- dimentions: 288x223x75mm
- weigth: 1,4kg