ISO 9001ISO 14001ISO 18001ISO 17025
TestOne Multimetre, Osiloskop, Pens Ampermetre, İzolasyon Meğeri, Kalibratör, Ölçü aleti, Ohmmetre, Meger, Datalogger ve Termal Kameralar

ZERA MT681 Portable Test System

Analysis of complete metering installations and local mains conditions

Açıklama

MT681_3

The state of the art test system MT681 consist of a class 0.1 reference meter with built-in current source up to 100 A. It is particularly designed for analysis of complete metering installations and local mains conditions. The equipment offers high functionality combined with an excellent menu guided operation via built-in soft-keys and coloured 6.4” LCD-display or optionally via corresponding software and PC.

  • Verification of the load conditions on metering installations
  • Verification of the energy registration
  • Testing of meters with accuracy classes 1 and 2
  • 4 Quadrant measurement
  • Frequency-, phase angle and power measurement
  • Independent generation of load conditions by using incoming voltage from the grid
  • Testing of 3 or 4 wire systems with pulse output
  • Harmonic spectrum analysis
  • Wave form analysis
  • Available as: Accuracy class 0.1 (MT681)

Ürün Özellikleri

  • User friendly menu guided operation
  • Vector diagram display and phase sequence indication on integrated colour-screen
  • Extendable compact flash memory for storage of customer data and measurement results
  • Easy verification and analysis of meter installations
  • No additional error for reactive measurements
  • Automatic operation without need of an external PC

Teknik Özellikler

GENERAL

MT681MT686
Power supply85 … 265 V, 47 … 63 Hz
Power consumptionmax. 350 VA
Temperature range, operation-10° … + 50° C
Temperature range, storage-15° … + 65° C
Relative humidity (not condensing)max. 95 %
Dimensions (DxWxH)192 x 485 x 392 mm
Weight~ 16.5 kg

SAFETY

MT681
IP class according to DIN EN 60529IP40
Declaration of conformityCE conform
Protection class according to DIN EN 61140I
Overvoltage category voltage measurement 16)CAT III 300 V / CAT II 600 V
Overvoltage category current measurementCAT III 300 V / CAT II 600 V

REFERENCE METER

MT681MT686
Measuring modes2WA / 2WR / 2WAP3WA / 3WR / 3WAP / 3WRCA / 3WRCB4WA / 4WAb/ 4WR / 4WRb / 4WAP / 4WAPb / 4WRC
Fundamental frequency45 ... 65 Hz
Bandwidth3000 Hz
Sampling16 bit 504 samples/period
Accuracy class for measuring of power / energy0.10.05
Angle measurement accuracy 3) 4)< 0.015°< 0.010°
Frequency measurement deviation± 0.01 Hz

Voltage Measurement

MT681MT686
Voltage measurement100 mV ... 300 V
Voltage range(s)5 V, 250 V
Voltage measurement accuracy 5)< 0.05 % @ 30 ..300 V< 1 % @ 1 V .. < 30 V< 3 % @ 100 mV .. < 1 V< 0.03 % @ 30 ..300 V< 1 % @ 1 V .. < 30 V< 3 % @ 100 mV .. < 1 V
Voltage measurement temperature drift 3)< 15 x 10 E-6 / K< 5 x 10 E-6 / K
Voltage measurement stability 1) 3)< 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]

MT681MT686
Current measurement1 mA ... 100 A
Current range(s)100 A, 50 A, 25 A, 12 A, 6 A, 3 A, 1.2 A, 0.6 A, 0.3 A, 0.12 A, 0.06 A [100 A, 50 A, 10 A, 5 A, 1 A, 0.5 A, 0.1 A, 0.05 A]
Current measurement accuracy 5)< 0.05 % @ 10 mA ... 100 A< 0.2 % @ 5 mA ... < 10 mA< 1% @ 1 mA .. < 5 mA[< 0.15 % @ 500 mA … 120 A] [< 0.3 % @ 100 mA … < 500 mA]< 0.03 % @ 10 mA ... 100 A< 0.2 % @ 5 mA ... < 10 mA< 1% @ 1 mA .. < 5 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) 4)< 70 x 10 E-6 / K[< 150 x 10 E-6 / K]
Current measurement long term stability 2) 4)< 100 x 10 E-6 / Year< 80 x 10 E-6 / Year

Power Measurement direct or [with MT3430]

MT681MT686
Power/energy measurement accuracy 3) 6)< 0.1 % @ 10 mA ... 100 A< 0.25 % @ 5 mA ... < 10 mA< 1 % @ 1 mA .. < 5 mA[< 0.2 % @ 500 mA … 120 A] [< 0.35 % @ 100 mA … < 500 mA]< 0.05 % @ 10 mA ... 100 A< 0.25 % @ 5 mA ... < 10 mA< 1 % @ 1 mA .. < 5 mA[< 0.2 % @ 500 mA … 120 A] [< 0.35 % @ 100 mA … < 500 mA]
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[< 700 x 10 E-6 ] / Year

SOURCE

MT681MT686
Current min. max.1 mA … 100 A
Current range(s)100 A, 50 A, 25 A, 12 A, 6 A, 3 A, 1.2 A, 0.6 A, 0.3 A, 0.12 A, 0.06 A
Current max. voltage per range0.5 V (100 A .. 12 A), 0.8 V (< 12 .. 6 A), 1.2V ( < 6 .. 3 A ), 2.3V ( < 3 A)
Current max. output power 8)50 VA
Current accuracy 4)< 0.1 %
Current distortion< 0.5 % @ 50 mA ... 120 A
Frequency range45 ... 65 Hz
Phase angle setting range0.00 … 359.99°
Phase angle stability 4) 9)< 0.15 °
  • 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 … 100 A [ 500 mA … 120 A]
  • 5: Related to the read value at optimum range selection
  • 6: Related of apparent power
  • 7: of range
  • 8: Related of end of maximum range and end of range and ohmic load
  • 9: Stability over 1 hour (measurement with ti = 10 s)
  • [ ] ≙ with AC current clamps MT3430
Subjects to alteration.

Aksesuarlar

TROLLEY (OPTIONAL)

OLYMPUS DIGITAL CAMERA  
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