ZERA MT365 Portable Reference Meter

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Teknik Özellikler
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MT360

The MT365 is a portable light weight working standard based on newest technology in power and energy measurement. Various measuring features combined with a user friendly operation concept are providing the greatest possible flexibility for a comprehensive testing of metering installations in the field. Its double isolated plastic already reveals the high quality of the system. The equipment offers high functionality combined with a menu guided operation via built-in soft-keys and a colored 6.4” TFT-display.

Accuracy class 0.05 (MT365)
Easy user-guidance
Unique long-term and temperature stability of the measuring module
Current measurement up to 120 A with error compensated AC current clamps
Especially configured USB-stick to store measurement results and customer data
Windows based data management software MTVis for evaluation of the test results
External system control via PC with windows based control software
No additional error for reactive measurement
Long-range applications by great offering of accessories

Ürün Özellikleri

The working standard is providing the following functions:

Testing of electricity meter installations with 2-wire, 3-wire and 4-wire circuits
Testing of energy and power registers
Power and energy measurement of active, reactive and apparent energy
4 quadrant measurement
Frequency-, phase angle- and power factor measurement
Harmonic waveform analysis for voltage and current up to the 40th THD
Determination of the operating burden on instrument transformer for CT and PT
Distortion factor measurement
Vector diagram display
Waveform sampling
Rotary field display
Ratio test by simultaneous measurement of both primary and secondary currents in CT connected metering systems
Selective power measurement
Automatic meter testing*

* optional and in combination with ZERA source.

Teknik Özellikler

GENERAL

	MT360 Class 0.1	MT365 Class 0.05
Power supply	85 … 265 V, 47 … 63 Hz
Power consumption	48 VA
Temperature range, operation	-10° … + 50° C
Temperature range, storage	-15° … + 65° C
Relative humidity (not condensing)	max. 95 %
Dimensions (DxWxH)	220 x 290 x 115 mm
Weight	4.2 kg

SAFETY

	MT360 Class 0.1
IP class according to DIN EN 60529	IP30
Declaration of conformity	CE conform
Protection class according to DIN EN 61140	II
Overvoltage category voltage measurement 16)	CAT III 300 V
Overvoltage category current measurement	CAT III 300 V

REFERENCE METER

	MT360 Class 0.1	MT365 Class 0.05
Measuring modes	2WA / 2WR / 2WAP3WA / 3WR / 3WAP / 3WRCA / 3WRCB4WA / 4WAb / 4WR / 4WRb / 4WAP / 4WAPb /4WRC
Fundamental frequency	15 … 70 Hz
Bandwidth	3000 Hz
Sampling	16 bit 504 samples/period
Accuracy class for measuring of power / energy	0.1	0.05
Angle measurement accuracy 3) 4)	< 0.015°[< 0.1°]	< 0.010°[< 0.1°]
Frequency measurement deviation	± 0.01 Hz

Voltage Measurement

	MT360 Class 0.1	MT365 Class 0.05
Voltage measurement	100 mV ... 300 V
Voltage range(s)	250 V, 5 V
Voltage channels input impedance (@ range)	245 kΩ @ 250 V10 MΩ @ 5 V
Voltage measurement accuracy 5)	< 0.05 % @ 30V .. 300 V< 0.2 % @ 500 mV .. < 30 V< 1 % @ 100 mV .. < 500 mV	< 0.03 % @ 30V .. 300 V< 0.2 % @ 500 mV .. < 30 V< 1 % @ 100 mV .. < 500 mV
Voltage measurement temperature drift 3)	< 15 x 10 E-6 / K	< 5 x 10 E-6 / K
Voltage measurement stability 1)	< 50 x 10 E-6
Voltage measurement long term stability 2) 3)	< 100 x 10 E-6 / Year	< 80 x 10 E-6 / Year

Current measurement direct or [with MT3430]

	MT360 Class 0.1	MT365 Class 0.05
Current measurement	1 mA ... 12 A[5 mA … 120 A]
Current range(s)	10 A, 5 A, 2.5 A, 1 A, 500 mA, 250 mA, 100 mA, 50 mA [100 A, 50 A, 10 A, 5 A, 1 A, 500 mA, 100 mA, 50 mA]
Usage of ranges	10 ... 120 %
Current channels input impedance (@ range)	~ 40 mΩ @ 50 mA .. 10 A
Current measurement accuracy 5)	< 0.05 % @ 10 mA ... 12 A< 0.20 % @ 5 mA ... < 10 mA[< 0.15 % @ 500 mA … 120 A][< 0.3 % @ 100 mA … < 500 mA]	< 0.03 % @ 10 mA ... 12 A< 0.2 % @ 5 mA ... < 10 mA[< 0.15 % @ 500 mA … 120 A][< 0.3 % @ 100 mA … < 500 mA]
Current measurement temperature drift 4)	< 15 x 10 E-6 / K[< 50 x 10 E-6 / K]	< 5 x 10 E-6 / K[< 50 x 10 E-6 / K]
Current measurement stability 1)	< 100 x 10 E-6 / Year[< 600 x 10 E-6] / Year	< 80 x 10 E-6 / Year[< 600 x 10 E-6] / Year
Current measurement long term stability 2) 4)	< 80 x 10 E-6 / Year< 600 x 10 E-6 / Year
Clamp for max. Ø	[12 mm]

Power Measurement direct or [with MT3430]

	MT360 Class 0.1	MT365 Class 0.05
Power/energy measurement accuracy 3) 5) 6)	< 0.1 % @ 10 mA … 12 A[< 0.2 % @ 500 mA … 120 A]	< 0.05 % @ 10 mA … 12 A[< 0.2 % @ 500 mA … 120 A]
Power/energy measurement temperature drift 3) 4)	< 30 x 10 E-6 / K[< 65 x 10 E-6]	< 10 x 10 E-6 / K[< 65 x 10 E-6]
Power/energy measurement stability 1)	< 100 x 10 E-6[< 200 x 10 E-6]
Power/energy measurement long term stability 2)	< 150 x 10 E-6 / Year< 700 x 10 E-6 / Year	< 100 x 10 E-6 / Year

1: Stability over 1 hour (every minute one measurement with ti = 60 s)
2: Stability over 1 year (every month one measurement over one hour )
3: From 30 V … 300 V
4: From 10 mA … 12 A [ 500 mA … 120 A]
5: Related to the read value at optimum range selection
6: Related of apparent power
[ ] ≙ with AC current clamps MT3430
16: Option CAT IV 300 V

Subjects to alteration.

Aksesuarlar

Cable set / Quick connecting cable set
Photo electric scanning head / Pulse converter
Error compensated current clamps for 120 A measurement
AC current clamps for 1000 A measurement

Ürün Özellikleri

Teknik Özellikler

Aksesuarlar

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