TK4800 Calibration Device for Portable Tester for EV Chargers
The TK4800 Calibration Device is a dedicated solution for calibrating both portable DC EV charger testers and portable AC EV charger testers. Designed based on the dynamic charging characteristics of modern electric vehicles, it supports two key calibration modes:
- Steady-state electric energy measurement – for calibration under constant load
- Dynamic electric energy measurement – for fluctuating or real-time changing loads
With high precision, wide measurement ranges, and stable performance, the TK4800 ensures accurate verification of portable EVSE testers used in field inspections, laboratory testing, and metrological verification.
| Type | Range | Resolution | Measurement Uncertainty (ppm*RD + ppm*RG) (k=2) | Temperature Coefficient (15~30âÂÂ) (ppm*RD + ppm*RG)/â |
|---|---|---|---|---|
| DC Voltage | 300 V | 0.1 mV | 30 + 20 | 0.25 + 0.25 |
| 750 V | 0.1 mV | 30 + 20 | 0.25 + 0.25 | |
| 1000 V | 1 mV | 30 + 20 | 0.25 + 0.25 | |
| DC Current | 1 A | 1 μA | 30 + 20 | 0.25 + 0.25 |
| 2 A | 1 μA | 30 + 20 | 0.25 + 0.25 | |
| 5 A | 1 μA | 30 + 20 | 0.25 + 0.25 | |
| 10 A | 10 μA | 30 + 20 | 0.25 + 0.25 | |
| 20 A | 10 μA | 30 + 20 | 0.25 + 0.25 | |
| 50 A | 10 μA | 30 + 20 | 0.25 + 0.25 | |
| 100 A | 0.1 mA | 30 + 20 | 0.25 + 0.25 | |
| 250 A | 0.1 mA | 30 + 20 | 0.25 + 0.25 |
Key Features
- Dedicated calibration device for portable AC & DC EV charger testers
- Supports steady-state and dynamic electric energy measurement
- High-precision voltage and current calibration up to 1000 V and 250 A
- Ultra-fine resolution down to 0.1 mV and 1 μA
- Low measurement uncertainty: 30 ppm*RD + 20 ppm*RG
- Stable performance with a low temperature coefficient
- Ideal for lab calibration, field verification, and metrology departments
- Accurately simulates real EV charging load behavior
- Reliable performance for fluctuating and dynamic load conditions
- Designed for modern EVSE testers and evolving EV charging standards