The newly upgraded AT48 series is a handheld multi-channel temperature tester controlled by an ARM microprocessor. It supports parallel multi-channel testing, acquiring, alarming and transmitting data for up to 32 temperature channels simultaneously. It is compatible with a wide range of temperature sensors with fast response and stable data, and includes thermocouple break detection.
Using an advanced measurement principle, the instrument achieves 0.1 °C temperature resolution and broad adaptability, supporting K/N/E/J/T/R/S/B type thermocouples over a range of -200 °C to 1800 °C.
The AT48 series runs the independently developed Onmeas ATOSv6 operating system, making operation simpler and more convenient; with ATOSv6 the instrument works well with large-capacity storage and offers powerful PC communication. USB is provided as standard together with free communication software, so data acquisition, analysis and printing can be carried out easily from a PC.
The instrument uses a rugged, vibration-resistant enclosure for use in harsh environments, and its fully isolated digital and analogue signals allow live testing (isolation voltage 230 V rms, 350 VDC) safely and reliably. The AT48 series comes standard with a USB flash drive interface supporting real-time data storage.
| Parameter | AT4808 | AT4816 | AT4824 | AT4832 | |
|---|---|---|---|---|---|
| Basic Parameters | |||||
| Number of Channels | 8 channels | 16 channels | 24 channels | 32 channels | |
| Thermocouple Type | Thermocouple: J/K/T/E/S/N/B/R types | Thermocouple: J/K/T/E/S/N/B/R type | |||
| Resolution | 0.1°C | ||||
| Scan Speed | Fast: 500 ms/channel; Slow: 1 s/channel | Fast: 500ms/channel; Slow: 1s/channel | |||
| Calibration | Per-channel error correction | ||||
| Test Terminal Voltage | Channel isolation voltage: 350V DC; 230V AC | Channel-to-channel isolation voltage DC 350V; AC 230V | |||
| Test Range | -200°C to 1800°C (range depends on thermocouple type) | -200°C ~ 1800°C (specific range depends on thermocouple type) | |||
| 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) | K type thermocouple: -100°C to 0°C ±1.2°C, 0°C to 1350°C ±0.8°C (varies slightly by thermocouple type, refer to user manual for details) | |||
| Cold Junction Compensation | Accuracy: 0.5°C | Accuracy 0.5°C | |||
| Other Functions | High/low alarm per channel, individually configurable; Data logging; USB storage support | Over-limit and under-limit alarm, configurable per channel; Data logging function; USB storage support | |||
| General Parameters | |||||
| Dimensions | Instrument Dimensions | 130 (W) × 210 (H) × 38 (D) mm | 130(W)x210(H)x38(D) | ||
| Package Dimensions | - | ||||
| Weight | Net Weight | 650 g | 650g | ||
| Gross Weight | - | ||||
| Power Requirements | Input: 100–240V~ 50/60Hz 0.35A; Output: 9V 2A DC | Input: 100-240V~50/60Hz 0.35A, Output: 9V 2A DC | |||
| Interface | USB interface; Mini-USB (virtual serial port) | USB interface \ Mini-USB (Virtual Serial Port) | |||
| Other | Standard software: Data acquisition software; TFT-LCD true color display; Open thermocouple detection | Standard software: Data acquisition software; TFT-LCD true-color display, open thermocouple detection function | |||