• Charging interfaces: European Standard CCS2, European Standard Mennekes (Type 2), Japanese Standard CHAdeMO
• DC power/electric energy class 0.05; AC power/electric energy class 0.05
• Testing with new energy vehicles as loads or with traditional resistive loads
• Load options: DC load 20 kW or 60 kW; AC load single-phase 9 kW or three-phase 45 kW; load power switched by program control
• Load cascading: up to four 60 kW DC loads, maximum power 240 kW
• Wide dynamic range measurement and ms-level power refresh speed
• Working error by pulse method or accumulated electric energy method; real-time clock for clock time error
• Wired temperature probe; dedicated calibration terminals
• Three power supply modes: charging gun head, removable built-in lithium battery, mains power

• Verification of AC and DC chargers with CCS2, Type 2, or CHAdeMO interfaces
• End-of-line and type testing by manufacturers of chargers built for export markets
• Reference measurements in calibration laboratories and testing institutes
• Dynamic accuracy checks during real vehicle charging sessions

• Reference standards: IEC 62196-2, IEC 62196-3, CHAdeMO
• DC voltage measuring range: 200 V ~ 1000 V; measurement uncertainty (k=2): 0.025%*RD
• DC current measuring range: 1 A ~ 250 A; measurement uncertainty (k=2): 0.025%*RD (5 A ≤ I ≤ 250 A), 0.05%*RD (1 A ≤ I < 5 A)
• DC power/energy measurement uncertainty (k=2): 0.05%*RD (5 A ≤ I ≤ 250 A), 0.1%*RD (1 A ≤ I < 5 A)
• AC voltage measuring range: three-phase 200 V~480 V; measurement uncertainty (k=2): 0.025%*RD
• AC current measuring range: three-phase 0.1 A ~ 80 A; measurement uncertainty (k=2): 0.025%*RD
• AC power/energy measurement uncertainty (k=2): 0.05%*RD
• Clock: GPS clock timing; time error ≤1 s
• Temperature: measuring range -30 °C ~ 60 °C; maximum permissible error 0.5 °C
• Power supply: utility power 85 V~265 V, 47 Hz~63 Hz; charging gun head; removable built-in lithium battery
• Communication interfaces: USB, LAN, Bluetooth or WiFi
• Operating temperature: -25 °C~55 °C; storage temperature: -30 °C~70 °C
• Operating humidity: < 80% @ 30 °C, < 70% @ 40 °C, < 40% @ 50 °C; storage humidity: < 80% RH, non-condensing

• TK4710-60 kW-1000 V adjustable DC resistance load: rated power 60 kW @1000 V/750 V/500 V; voltage 0 ~ 1000 V, current 0 ~ 120 A; up to 4 loads cascaded, maximum power 240 kW; 610 mm (W) × 550 mm (D) × 435 mm (H); about 66 kg
• TK4720-9 kW adjustable AC resistance load: single-phase 9 kW; voltage 0~264 V, current 0~39.5 A; 400 mm (W) × 405 mm (D) × 345 mm (H); about 20 kg
• TK4720-45 kW adjustable AC resistance load: three-phase 45 kW; voltage 0~264 V, current 0~75 A; 550 mm (W) × 420 mm (D) × 590 mm (H); about 54 kg

Charger accuracy depends on how the load behaves. A test at a few fixed points can pass while the charger misreads energy during the ramps and plateaus of a real session, which is exactly what the customer pays for.

The TK4830 measures accumulated energy across the whole charging process, either with a vehicle connected or with a programmable resistive load. Its wide dynamic range and ms-level power refresh reduce the error from non-synchronous accumulation between the charger and the reference. Working error is calculated by pulse method or accumulated energy method, and the GPS-timed clock checks the charger clock in the same test.

The tester is built for European CCS2 and Type 2 (Mennekes) connectors and Japanese CHAdeMO, and pairs with the Tunkia TK4710 DC load and the Tunkia TK4720 AC load. For chargers with US CCS1 and Type 1 connectors, the Tunkia TE1100-US is the matching model.

AV-TEK helps you choose the tester and load set for your connector standards and power levels. Browse EV charger testers and loads or all Tunkia instruments.