Thiết bị đo vòng lặp Sonel MZC-310S

Range	Resolution	Accuracy
0...440V	1V	±(2% m.v. + 2 digits)

· frequency range: DC, 45...65Hz
·  input impedance of the voltmeter: >200kΩ

Frequency measurement (for voltages within the range 50...440V)

Range	Resolution	Accuracy
45,0...65,0Hz	0,1Hz	±(0,1% m.v. + 1 digits)

 

Short circuit loop parameters measurement using high current  (4p, I_max=280A)

High-current of measurement of short circuit loop impedance Z_S:
measuring range according to IEC61557: 7,2mΩ...1999mΩ

Range	Resolution	Accuracy
0...199,9mΩ	0,1mΩ	±(2% m.v. + 2mΩ)
200...1999mΩ	1mΩ

Short circuit resistance R_S and reactance X_S display range

Range	Resolution	Accuracy
0...199,9mΩ	0,1mΩ	±(2% m.v. + 2mΩ) impedance reading for  a particular measurement
200...1999mΩ	1mΩ

Prospective short circuit loop current
measuring range according to IEC 61557:
for U_n = 230V   115,0A...32,0kA
for U_n = 400V   200A...55,7kA 

Range	Resolution	Accuracy
115,0...199,9A	0,1A	accuracy of the current indication computed, respectively, with the use of resistance measurement
200...1999A	1A
2,00...19,99kA	0,01kA
20,0...199,9kA	0,1kA
200kA...*	1kA

* 230 kA for U_L-N
   400 kA for U_L-L 

Measurement of short circuit loop using standard current (2p, I_max=42A)

Touch voltage measurement U_ST (shock voltage U_T)

Range	Resolution	Accuracy
0...100V	1V	±(10% m.v. + 2 digits)

Short circuit loop impedance Z_S measurement:
measuring range according to IEC61557: 0,13Ω...199,9Ω for 1,2m long test leads

Range	Resolution	Accuracy
0,00...19,99Ω	0,01Ω	±(2% m.v. + 3 digits)
20,0...199,9Ω	0,1Ω	±(3% m.v. + 3 digits)

Short circuit resistance R_S and reactance X_S display range

Range	Resolution	Accuracy
0,00...19,99Ω	0,01Ω	±(2% m.v. + 3 digits) impedance reading for  a particular measurement
20,0...199,9Ω	0,1Ω	±(2% m.v. + 3 digits) impedance reading for  a particular measurement

 

Prospective short circuit loop current

Range	Resolution	Accuracy
1,150...1,999A	0,001A	accuracy of the current indication computed, respectively, with the use of resistance measurement
2,00...19,99A	0,01A
20,0...199,9A	0,1A
200...1999A	1A
2,00...19,99kA	0,01kA
20,0...40,0kA	0,1kA