Systems Private Limited
Ultra-low Temperature Controller
DXTC-290 ultra-low temperature temperature controller can support diodes, thermocouples, platinum resistors and negative temperature coefficient resistance sensors, and can be connected to up to ten temperature sensors to achieve the experimental purpose of multi-point testing.
The DXTC-290 temperature controller has extremely high resolution, accuracy, stability and other characteristics, and is at the advanced level in the industry. At the same time, it has multiple communication methods such as Ethernet, RS-485, and USB, with long data transmission distances and convenient and flexible data collection. The sensor adopts dual constant current source mode with balanced output. The constant current source can automatically shift gears at extremely low temperatures, reducing the energy injected into the sensor and ensuring stable and reliable operation of the sensor.
DXTC-290 Ultra-low Temperature Controller has two control loops at the same time. The input of each loop can be associated with any one of the ten sensors. It can be expanded to up to two 100W or one 200W low-noise heater, which can realize various modes. Closed-loop temperature control and self-tuning function make operation simpler and faster.
Measurement parameters
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Measurement accuracy: The optimal measurement accuracy can reach 10mK;
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Measurement range: Using an appropriate NTC RTD sensor, the measurement range can be as low as 300mK;
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Input channels: Two sensor input channels are standard, which can be expanded to up to 10, and each has an independent temperature curve;
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Sensor compatibility: diode temperature sensor, Cernox temperature sensor, platinum resistance temperature sensor, thermocouple sensor, etc.;
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Output control: three independent heater outputs, supporting ±10V analog voltage output, alarm and relay control;
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Measurement ADC: 24bit, update rate, 10 readings per second per channel;
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Thermoelectric potential compensation: supports the thermal electromotive force compensation function of resistance sensors;
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Network operation: Multiple units can be operated in a network. A single network allows up to 247 monitors to run at the same time.
Control parameters
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Control loop: It has dual control loops, the first loop is a low-noise heating power supply of 100W or upgraded to 200W, and the second loop is a low-noise heating power supply of 1W or upgraded to 100W;
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Signal filtering: filter window 1-10%FS, filter point number 2 to 64;
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Control mode: automatic adjustment, manual setting, regional setting;
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PID control: Ratio 0 to 1000, setting resolution of 0.1;
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ntegral 0 to 1000, setting resolution of 0.1;
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Differential 0 to 200, setting resolution of 0.1;
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Manual 0 to 100%, 0.01% setting resolution.
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Regional function: Automatically switch sensor input, continuous measurement and control from 300mK to 1505K;
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Safety protection: temperature set point limit, curve temperature limit, heating output slope limit, heating power gear limit, heating off when powered on, heater short circuit protection.
Human-computer interaction
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Display: 5'' color capacitive touch screen;
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Display mode: Chinese and English, multiple temperature units of K, ℃, V, Ω;
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Temperature display resolution: 0.0001K;
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Communication interface: standard Ethernet, RS-485, USB interface;
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Communication range: The transmission distance of RS-485 interface can reach 1200 meters, and the distance of Ethernet interface is basically unlimited;
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Communication protocol: supports ECT custom protocol and standard MODBUS protocol;
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Software support: Provide LabView driver;
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Data storage: allows storage of up to 64 temperature curves, including 20 curing standard temperature characteristic curves.