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MPI-502多功能儀表電氣裝置

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公司名稱珠?？祵毴R儀表有限公司
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型號MPI-502
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更新時間2022/12/19 16:04:55
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MPI502 Short circuit loop parameters measurements: - measurements of short circuit loop impedance in networks with rated voltage: 220/380V, 230V/400V, 240/415V and frequency 45...65Hz, - measurements

MPI-502多功能儀表電氣裝置產(chǎn)品信息

Short circuit loop parameters measurements:
- measurements of short circuit loop impedance in networks with rated voltage: 220/380V, 230V/400V, 240/415V and frequency 45...65Hz,
- measurements of short circuit loop impedance with current 15mA without tripping the circuit breaker.
Testing the RCD breakers of AC, A types:
- testing of prompt, short-delay (general) and selective RCDs for the rated current values 10, 30, 100, 300, 500mA,
- IA measurement
- RE and UB measurement without tripping the circuit breaker,
- extended RCD test function AUTO, with measurement of ZL-PE with current 15mA - measurement of IA and tA during one RCD tripping.
Detection of the replacement L and N in the socket and automatic conversion in the meter.
Low voltage resistance measurements of protective circuits and junctions:
- measurement of resistance with 200 mA current
- calibration of test leads - possibility of using any length of test leads,
- low current resistance measurement with accoustic signalling
Rapid check for the correct connection of PE wire using touch electrode.
Measurement of mains voltage and frequency.
Power supply from LR6 batteries or NiMH accumulators (option).
The device meets the requirements of IEC 61557 standard.

MPI-502 Technical Specifications

The device meets the requirements of EMC standards EN 61326-1:2006 and EN 61326-2-2:2006.
Electric safety:
- type of insulation: double, according to EN 61010-1 and IEC 61557
- measurement category: IV 300V (III 600V) according to EN 61010-1
- protection class acc. to EN 60529: IP67

Other technical data:
- dimentions: 220 x 98 x 58mm
- weight: ~1kg
- Auto OFF time: 300, 600, 900 second
- number of measurements Z and RCD (for NiMH batteries): >5000 (2 per minute)

Short circuit loop impedance measurement Z_L-PE, Z_L-N, Z_L-L
Measurment using 7,6/13,3A current – Measurement range according to
IEC 61557: 0,13...1999Ω
(for 1,2m lead) and 0,19...1999Ω (for WS-01 and WS-04).

Display range	Resolution	Accuracy
0,00...19,99Ω	0,01Ω	±(5% m.v. + 3 dgt)
20,0...199,9Ω	0,1Ω
200...1999Ω	1Ω

• Nominal work voltage: Un_L-N/ Un_L-L: 220/380V, 230/400V, 240/415V,
• Voltage operating range: 100…264V (for Z_L-PE i Z_L-N) and 100…440V (for Z_L-L),
• Nominal network frequency fn: 50Hz, 60Hz,
• Max. test current: 23A (230V), 44A (440V),
• PE terminal connection corectores check with the help of touch electrode

Readings of fault loop impedance R and fault loop reactance X_L

Display range	Resolution	Accuracy
0,00...19,99Ω	0,01Ω	±(5% m.v. + 5 digits) of Z_S value
20,0...199,9Ω	0,1Ω	±(5% m.v. + 5 digits) of Z_S value

calculated and displayed for Z_S<200Ω.

Short circuit loop impedance Z_L-PE in mode RCD – without RCD tripping
Measurement using <15mA,current measurement range in accordance with IEC 61557: 0,51...1999,9Ω

Display range	Resolution	Accuracy
0,00...19,99Ω	0,01Ω	±(6% m.v. + 10 dgt)
20,0...199,9Ω	0,1Ω	±(6% m.v. + 5 dgt)
200...1999Ω	1Ω	±(6% m.v. + 5 dgt)

• test without tripping the RCD for I_Δn ≥ 30mA,
• nominal work voltage: Un: 220V, 230V, 240V,
• voltage operating range:180...270V,
• frequency operating range fn: 50Hz, 60Hz
• PE terminal connection correctness check with the help of touch electrode

Readings of fault loop impedance R and fault loop reactance X_L (without tripping the RCD)

Display range	Resolution	Accuracy
0,00...19,99Ω	0,01Ω	±(6% m.v + 10 dgt) of Z_S value
20,0...199,9Ω	0,1Ω	±(6% m.v + 5 dgt) of Z_S value

• calculated and displayed for Z_S<200Ω.

RCD parameters test (voltage range 180...270V):
RCD tripping test and measurment of tripping time t_A (for t_A function)

Breaker Type	Test Current Multiplier	Range	Resolution	Accuracy
Standard	0,5*I_Δn	0...300ms	1 ms	± (2% m.v. + 2 dgt)
	1*I_Δn	0...300ms
	2*I_Δn	0...150ms
	5*I_Δn	0...40ms
Selective	0,5*I_Δn	0...500ms
	1*I_Δn	0...500ms
	2*I_Δn	0...200ms
	5*I_Δn	0...150ms

• Precision of the differential current: 0,5*I_Δn:-8...0% for 1*I_Δn, 2*I_Δn, 5*I_Δn: 0...8%

Voltage measurement

Range	Range	Accuracy
0,0V...299,99V	0,1V	±(2% m.v. + 6 dgt)
300V...500V	1V	±(2% m.v + 2 dgt)

Frequency measurement

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

Touch voltage measurement referred to the rated residual current (U_B)

Range	Resolution	Test Current	Accuracy
0..9,9V	0,1V	0,4 x I_Δn	10% m.v. ± 5 dgt
10,0..99,9V	0,1V	0,4 x I_Δn	0...15% m.v.

Measurementof the RCD disconection current I_A for sine waveform testing current

Selected Current	Range	Resolution	Test Current	Accuracy
10mA	3,3...10,0mA	0,1mA	_{0,3 x IΔ}_{n...1,0 x IΔ}_n	±5%I_Δn
30mA	9,0...30,0mA	0,1mA
100mA	33...100mA	1mA
300mA	90...300mA
500mA	150...500mA

• It is posible to start the measurement from the positive or negative half of the forced leaking current

RCD I_A tripping current measurement for unidirectional pulsating residual current

Selected Current	Range	Resolution	Test Current	Accuracy
10mA	4...20,0mA	0,1mA	0,35xI_Δn..2,0xI_Δn	±10%I_Δn
30mA	12,0...42,0mA	0,1mA	0,35xI_Δn..1,4xI_Δn
100mA	40,0...140mA	1mA
300mA	120...420mA	1mA

• Measurement is possible for a positive or negative forced leakage current.

Low voltage test of the circuit and insulation continuity
Measurement range in accordance with IEC61557:0,12...400Ω
Test of PE wire continuity using a ±200mA current

Range	Resolution	Accuracy
0,00...19,99Ω	0,01Ω	±(2% m.v + 3 dgt)
20,0...199,9Ω	0,1Ω
200...400Ω	1Ω

• Voltage on open terminals: 4…9V,
• Test current at R<2Ω: min. 200mA,
• Autocalibration of test leads
• Measurements for both polarizations of the current

„m.v.” measured value.