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CMT202 Temperature Controller
CMT202 temperature controller offers precise 1.4–450 K control with 50 W output, PID stability, RS-232 communication, and excellent cost performance.
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Selection at a glance
- Temperature range
- 1.4 K – 450 K
- Temperature resolution
- 0.01 K
1. Product Overview
The CMT202 Temperature Controller by Vectomag is a reliable and cost-effective solution for precise temperature control in cryogenic and laboratory applications.
It supports platinum resistance (Pt100) and rhodium–iron thermometers, providing stable and accurate temperature management within the 1.4 K – 450 K range.
With a maximum heating power of 50 W, real-time PID control, and RS-232 communication, the CMT202 is designed for integration with Vectomag’s liquid nitrogen temperature systems, enabling precise and stable control between 80 K – 300 K with an accuracy better than ±0.1 K.
Compact, easy to use, and highly affordable — it is one of Vectomag’s most popular laboratory control instruments.
3. Technical Specifications
| Parameter | Value |
|---|---|
| Temperature range | 1.4 K – 450 K |
| Temperature resolution | 0.01 K |
| Measurement rate | 20 readings/sec |
| Temperature error | < 0.05% F.S ± 1 digit |
| A/D conversion | 16-bit |
| Maximum heating power | 50 W (0–24 V, 0–2 A) |
| Power supply | 190–240 V AC, 50 Hz, 100 W |
| Excitation current | 1 mA DC constant source |
| Platinum resistance correction | Zero and linear full-scale |
| Line interpolation | 20 points (non-Pt sensors) |
| Communication interface | RS-232 |
| Measurement method | Four-lead resistance method |
| Alarm relay | 10 A @ 220 VAC / 30 VDC |
| Temperature scale | °C or K |
| Dimensions (L × W × H) | 320 × 217 × 102 mm |
| Weight | 3.8 kg |
5. System Configuration
- Main unit (CMT202 controller)
- 4-pin aviation connector for temperature sensor
- 5-pin aviation connector for heater and alarm connection
- RS-232 communication cable
- Power cable and user manual
2. Key Features
- Supports resistive thermometers such as Pt100 and Rh–Fe sensors
- Temperature range: 1.4 K – 450 K
- High measurement accuracy, automatic compensation for temperature and time drift
- Resolution: 0.01 K; sampling rate: 20 readings per second
- Real-time PID temperature control with high stability
- Adjustable zero and linear correction for different sensors
- High-temperature alarm with relay output
- RS-232 interface for computer communication
- Simple operation, compact design, and excellent cost-performance ratio
4. Testable Samples & Applications
- Cryogenic material characterization
- Superconductivity and magnetic property testing
- Semiconductor and low-temperature device research
- Integration with liquid nitrogen probe stations or cryostats
- Temperature feedback and control for laboratory experiments
6. Optional Accessories
- Additional platinum or rhodium-iron sensors
- External relay modules for alarm or interlock systems
- Data logging software for long-term temperature monitoring
- Interface adapters for integration with other Vectomag instruments
7. Software Functions
- Real-time temperature display and control
- RS-232 serial communication for PC connection
- PID parameter configuration and tuning
- Data acquisition and logging functions
- High-temperature alarm settings and relay output control
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