Selection at a glance
- Built for the settlement point on the DC charger side or the AC incomer. Wide-order harmonics and pulse outputs suit reconciliation on the operator platform.
- LoRa or RS485, plus GPS time sync (see the table), let scattered sites be read without a new cable run and stay on one clock.
- A wide-temperature meter box and low power suit an outdoor canopy or the inside of an integrated charger.
- SimtoLink can supply the field map for a billing platform and an OCPP gateway.
Product overview and where it fits
The SimtoLink DC EV charger meter is for charge-and-swap operators and property projects. It gives a traceable metering break between regulated settlement and internal energy analysis.
SimtoLink supplies a phase diagram, the steps to check CT polarity, and a sampling procedure for a metering dispute. It can sit on the same platform as a PV grid meter and a demand meter.
Reliability on site
For electrical safety and EMC, the meter has passed the relevant IEC 61000-4 level-4 items. Ports include surge and reverse-polarity protection. Reinforced grounding and a partitioned layout reduce ground loops and common-mode noise. Outdoor or coastal sites can take a higher ingress rating and a corrosion-resistant coating.
Parameters can be loaded in batches, thresholds can be set, and the unit can keep event video or waveform records, depending on the model. Configuration and firmware go out by OTA. On site, close acceptance in three steps: a power-on self-test, clock sync on the link, and a spot check of samples. For metering or safety duty, SimtoLink helps submit the unit to a third-party metrology institute and supplies the type-test file.
Key hardware parameters
The figures below are the typical build of this meter, for selection and for the technical clauses in a bid. A wider range, redundant power, or an intrinsically safe variant is available from SimtoLink with the Hardware Specification and the Installation and Commissioning Guide. Order codes in the family can differ slightly; the nameplate and the papers shipped with the unit govern.
| Parameter | Specification | Notes |
|---|---|---|
| Voltage | 3×57.7/100 V | Self-powered |
| Current | 0.2S class, external CT | Anti-tamper |
| Accuracy | Active energy 0.5S | IEC 62052 |
| Harmonics | 2nd to 49th | THD analysis |
| Communications | LoRa reporting | Dual port |
| Clock | GPS time-sync module | Time-of-use tariffs |
| Pulse | Active and reactive pulse outputs | Optically isolated |
| Consumption | <2.7 W | Single-phase or three-phase |
| Operating temperature | -33～66 ℃ | Outdoor meter box |
| Standard | MID | Type approval |
Typical deployments
How this meter is usually put to work on site, so a design can be chosen and joint commissioning can be signed off:
Public fast-charge sites
Settlement per charger or per busbar, for time-of-use prices and member discounts.
Mall garages
Charging energy is metered apart from the parking management fee.
Bus and logistics depots
Overnight bulk charging is watched, and it lines up with a demand-control policy.
Installation, grounding, and upkeep
- Before applying power, confirm the supply range and polarity. If there is any doubt, measure bus voltage and breaker capacity with a multimeter.
- Run the communications cable as shielded twisted pair, grounded at one end only, and do not lash it to high-power cables over a long route.
- For the first go-live, prove read and write in both directions and the threshold triggers against the platform in the lab, then move the meter to site.
- Outdoors, give drainage and ventilation first priority, inspect the sealing faces on a regular round, and keep the lightning earth resistance inside the local code.
- In continuous service, spot-check samples and archive logs every 12 months.
Ordering, documents, and support
SimtoLink provides the hardware specification, an outline drawing, a wiring table, and a sample project. Volume orders can include a sample review and inspection at the factory. Warranty and calibration follow the contract and the documents that ship with the meter.
Related hardware
Meter reading and the meters that sit with it: