UNI-T UT3216+ Multi-Channel Temperature Tester
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UT3200+ Series Multi-channel Temperature Tester Datasheet
UT3216
UNI-T UT3216+ Multi-Channel Temperature Tester (16 Channels)
The UNI-T UT3216+ is a professional 16-channel temperature tester and data logger designed for simultaneous multi-point temperature monitoring with high accuracy and stability. It supports a wide range of thermocouple types and offers multiple display modes, data logging, alarm functions, and industrial communication interfaces—making it ideal for laboratories, production lines, R&D, HVAC testing, and thermal system evaluation.
As part of the UT3200+ Series, the UT3216+ combines high-resolution measurement, robust connectivity, and user-friendly operation in a compact benchtop instrument.
Key Features
- 16 independent temperature input channels
- 4.3-inch true-color LCD
- Supports multiple thermocouple types: J, K, T, E, N, S, R, B
- Wide temperature measurement range: up to –200 °C to 1800 °C (sensor dependent)
- High resolution: 0.01 °C
- Simultaneous multi-channel data acquisition
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Multiple display modes:
- Numeric readings
- Curve (trend) chart
- Histogram
- Fast & slow scanning rates
- Cold junction compensation
- Automatic thermocouple open-circuit detection
- Upper & lower limit alarm for each channel
- USB HOST with 8 GB USB flash storage (data & screenshots)
- File management with setup memory
- RS-232C and LAN communication
- SCPI & MODBUS-RTU protocol support
- DC 24 V external power support
Technical Specifications – UT3216+
General
- Model: UT3216+
- Channels: 16
- Display: 4.3″ True-color LCD
- Display modes: Numeric / Curve / Histogram
- Resolution: 0.01 °C
- Power supply: AC 100–240 V, 50/60 Hz
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Operating environment:
- Temperature: 15 °C – 35 °C
- Humidity: < 80% RH
Thermocouple Support & Ranges
- Supported types: J, K, T, E, N, S, R, B
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Measurement range:
–200 °C to 1800 °C (depends on thermocouple type)
Accuracy (Instrument Accuracy, excluding probe compensation)
Thermocouple | Temperature Range (°C) | Accuracy |
|---|---|---|
| Type T | –150 to 0 | ±1.0 °C |
| 0 to 400 | ±0.8 °C | |
| Type K | –100 to 0 | ±1.2 °C |
| 0 to 1350 | ±0.8 °C | |
| Type J | –100 to 0 | ±1.0 °C |
| 0 to 1200 | ±0.7 °C | |
| Type N | –100 to 0 | ±1.5 °C |
| 0 to 1300 | ±0.9 °C | |
| Type E | 0 to 850 | ±0.7 °C |
| Type S | 0–100 / 100–300 / 300–1750 | ±4.5 / ±3.0 / ±2.2 °C |
| Type R | 0–100 / 100–300 / 300–1750 | ±4.5 / ±3.0 / ±2.2 °C |
| Type B | 600–800 / 800–1000 / 1000–1800 | ±5.5 / ±3.8 / ±2.5 °C |
Note: Standard thermocouple compensation adds ±0.5 °C.
Interfaces & Connectivity
- USB HOST (data logging & screenshots)
- RS-232C
- LAN (Ethernet)
- DC 24 V external power
- RS-485 (optional)
- Protocols: SCPI, MODBUS-RTU
Data Logging & Alarms
- Real-time data recording to USB flash drive
- Screenshot capture
-
Over-limit alarm:
- Red display for over upper limit
- Blue display for below lower limit
- Per-channel alarm thresholds
- Temperature calibration: Input calibration & input offset
Typical Applications
- Multi-point temperature monitoring
- Industrial process testing
- R&D and laboratory experiments
- HVAC system evaluation
- Electronic product thermal testing
- Production line quality control
- Environmental and reliability testing
Summary
The UNI-T UT3216+ is a powerful 16-channel temperature tester offering high accuracy, flexible sensor support, advanced data logging, and industrial communication, making it an excellent solution for professional multi-channel temperature measurement and analysis.
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