✅ 24‑bit True‑RMS Sampling with Channel‑to‑channel Galvanic Isolation 24‑bit ADC per channel, sampling rate up to 6.4 kSPS, measurement accuracy better than 0.2%FS. 2000 V AC isolation between 5 channels, robust for distorted non‑sinusoidal AC signals. ‑ 5AA: 5 A AC input, compatible with external 5A secondary‑winding current transformers; ‑ 5AV: direct AC 750 V voltage input.
✅ Local OLED HMI for On‑site Debugging OLED screen supports multi‑channel value cyclic display. Physical keys for full‑parameter setup without host‑computer software. Configurable buzzer, screen‑off timeout and display cycle time. Real‑time readings visible inside control cabinet.
✅ Flexible Field Calibration Support CT ratio setting for current‑transformer application. Independent offset calibration for each of 5 channels. Built‑in digital filter stabilizes readings under electromagnetic interference.
✅ Dual‑port Industrial Communication Standard RS485, optional Ethernet. Compliant with Modbus‑RTU / Modbus‑TCP. 32‑bit float output via function‑code 04. Modifiable station address, baud‑rate, parity, IP / subnet‑mask / gateway, supports multi‑module distributed acquisition network.
✅ Industrial‑grade DIN‑rail Design DC24V(±10%) power supply, max power consumption ≤3 W. Compact dimension 89 × 40 × 108 mm, 35 mm DIN‑rail mounting. Operating temperature: 0‑50 ℃, humidity ≤85%RH for continuous cabinet‑operation.
Main Specifications
| Item | Specification |
|---|---|
| Model | ChipDAQ‑5AA / ChipDAQ‑5AV |
| Channels | 5 channels, 2000 V AC isolation between channels |
| ADC Resolution | 24‑bit, True‑RMS measurement |
| Sampling Rate | 6.4 kSPS per channel |
| Accuracy | <0.2%FS |
| Input Range | 5AA: AC 5A; 5AV: AC 750V |
| Power Supply | DC24V ±10% |
| Max Power | ≤3 W |
| Display & Operation | OLED display, physical keys, buzzer, auto screen‑off |
| Communication | RS485 Modbus‑RTU (standard); optional Ethernet Modbus‑TCP |
| Data Output | 32‑bit float, Modbus function code 04 |
| Configuration | CT ratio, per‑channel offset, digital filter, network & serial parameters |
| Dimension | 89 × 40 × 108 mm |
| Mounting | 35 mm DIN rail |
| Ambient | 0~50 ℃, ≤85%RH non‑condensing |
| Model Code | 5AA/5AV‑S‑TCP (‑TCP: with Ethernet; ‑N: RS485 only) |
Typical Applications
Wind & solar‑power monitoring; multi‑loop power monitoring for thermal‑processing equipment; factory energy‑consumption inspection; test‑bench AC signal acquisition; PLC / SCADA expansion point; domestic‑substitution retrofitting.
Note: 5AA requires external 5A secondary current transformers for high‑current measurement. OEM & ODM customization available.
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