The AT47AV series has been upgraded to the AT47AV series, an iterative upgrade of the same product line. The instrument features a high-performance ARM9 microprocessor for real-time, high-speed data acquisition. The newly upgraded full-mirror touch panel utilizes the 9th generation ATOS operating system by ONMEAS, supporting both Chinese and English interfaces for intuitive, smarter, and easier operation.
The newly designed AT47AV series comes with a built-in 64GB high-capacity memory and communication-mapped USB drive. It employs a real-time FPGA circuit that breaks through sampling rate limitations, combined with efficient, high-precision analog circuits to achieve high-accuracy and ultra-high-speed sampling with a test temperature resolution of 0.01°C. The instrument features channel isolation voltage of 350VDC and 230VAC (full digital and analog signal isolation), making it suitable for complex systems requiring simultaneous monitoring of temperature and voltage, such as new energy applications and automation control.
The instrument provides built-in LAN, RS-232, USB-232, and VCOM virtual serial port interfaces. The RS-232 and USB-232 interfaces support the Modbus (RTU) protocol, while the LAN port supports the Modbus (TCP) protocol. This enables computer-based instrument control and data acquisition, effectively applied to remote control, data collection, and analysis.
The instrument supports USB communication, enabling data acquisition, analysis, and printing through the included computer software. It supports USB disk storage for real-time sampling data recording. Users can perform independent calibration on each channel.
| Parameter | AT4756AV | |
|---|---|---|
| Basic Parameters | ||
| Number of Channels | 56 channels | |
| Thermocouple Type | Thermocouple: J/K/T/E/S/N/B/R type; RTD: PT100, PT1000, CU50; Humidity: Humidity test module (optional); Voltage: DCV | |
| Resolution | Temperature: 0.01°C; DCV: 100mV~100V | |
| Scan Speed | Fast: 500ms/channel; Slow: 1s/channel | |
| Calibration | Per-channel error correction | |
| Test Terminal Voltage | Channel isolation voltage: 350VDC; 230VAC | |
| Test Range | ±0.2%±2 digits (excluding thermocouples); PT100: ±0.6°C, PT1000: ±0.6°C, CU50: ±0.6°C | |
| Basic Accuracy | K-type thermocouple: -100°C to 0°C ±1.2°C, 0°C to 1350°C ±0.8°C (varies by thermocouple type, refer to user manual) | |
| Cold Junction Compensation | Accuracy: 0.5°C | |
| Other Functions | High/low alarm, individually set per channel; Data logging function; USB storage support | |
| General Parameters | ||
| Dimensions | Instrument Dimensions | 294(W) × 130(H) × 316(D) mm |
| Package Dimensions | 350 × 200 × 400 mm | |
| Weight | Net Weight | 3 kg |
| Gross Weight | 4.5 kg | |
| Power Requirements | Voltage: 100VAC~240VAC, Frequency: 47.5-52.5Hz, Power: 10VA | |
| Interface | RS232C, USB drive, Type-C communication, LAN | |
| Other | 7-inch TFT-LCD color display, open-circuit thermocouple detection; Standard software: ATS45 data acquisition software; Accessories: 8 thermocouples (2m each), Type-C communication cable | |