• Power/energy measurement: class 0.02, class 0.05
• DC standard voltage source: 10 mV ～ 1150 V / 1550 V (option)
• DC standard current source: 20 μA ～ 120 A
• DC four-wire small-signal voltage source: 10 μV ～ 4.4 V
• Optional 6, 12, or 16 meter position verification platform with press bracket
• Auxiliary power supply DC 24 V or AC 220 V for type A electronic meters at each position
• Clock module with precision up to 0.2 ppm and GPS receiver for daily timing error tests
• Mobile measurement and control station with LCD touch screen

• Direct connected DC energy meters: 1.15 Un test of 1 kV meters and 1.2 In test of 100 A meters
• Indirect connected DC energy meters through the four-wire small-signal source
• Mixed batches of direct and indirect connected meters
• Daily timing error testing of DC energy meters

• Power/energy measurement: class 0.02, class 0.05
• DC standard voltage source: 10 mV ～ 1150 V / 1550 V (option)
• DC standard current source: 20 μA ～ 120 A
• Four-wire small-signal voltage source: ± (10 μV ～ 4.4 V)
• Meter positions: 6, 12, or 16 (option)
• Power supply: AC (220±22) V, (50±2) Hz
• Working temperature: 0 °C ～ 45 °C; calibration temperature: 18 °C ～ 28 °C; storage temperature: -20 °C ～ 70 °C
• Working humidity: < 80% @ 30 °C, < 70% @ 40 °C, < 40% @ 50 °C; storage humidity: (20% ～ 80%) RH, no condensation
• Interface: RS232

Meter labs that serve several customers see both direct connected and indirect connected DC energy meters, often in the same week. Keeping two benches for the two types doubles setup and maintenance.

The TD1575 handles both on one platform. The DC current source up to 120 A covers the 1.2 In test of 100 A direct connected meters, while the four-wire small-signal source from 10 μV to 4.4 V stands in for the shunt of indirect connected meters. The voltage source reaches 1550 V with the option for the 1.15 Un test of 1 kV meters. Press-fit positions, auxiliary supplies, and a GPS-referenced clock module complete the verification sequence.

For indirect connected meters only, see the Tunkia TD1570; for 600 A and type evaluation tests, the Tunkia TD1580. Compare models in DC power and energy standards.

AV-TEK helps you choose positions and accuracy class for your meter mix. Explore more Tunkia instruments.