DTS-B Portable Smart Calibration Bath is a high-precision, self-regulating temperature calibration device. It features excellent stability, a uniform temperature field, and accurate temperature control. Utilizing a fully enclosed compressor refrigeration system and intelligent PID regulation, it achieves automatic temperature control. The unit has a compact structure, is lightweight, portable, and durable. It is suitable for on-site calibration/verification of various temperature sensors, including industrial platinum resistance thermometers, low-temperature thermocouples, sheathed thermocouples, working liquid-in-glass thermometers, standard mercury thermometers, bimetal thermometers, and pressure thermometers.

Product Features

Ultra-Wide Temperature Range: -40 °C to 180 °C, achieving broader coverage without the need to change media across the entire range.

Unaffected by ambient conditions: The -40  °C calibration point remains stable and unaffected in ambient temperatures ranging from 15 °C to 35 °C.

Intelligent rapid cooling: Cooling from 150 °C to 25 °C takes as short as 30 minutes and passes multi-cycle hysteresis testing.

Smart touchscreen interface:Smart touchscreen control with 0.001°C resolution. Real-time display of temperature curve and fluctuation.

Automatic Temperature Control: Automatically regulates heating and stirring per equipment status—no manual intervention needed.

Adjustable Temperature Control Rate: Both heating and cooling rates are adjustable and can be freely set by the user.

Multi-point calibration: Supports calibration at multiple temperature points; temperature sensors allow segmented multi-point correction with fully automatic segmented control.

Multi-point Tuning: Supports PID tuning for various temperature points with automatic parameter saving. Automatically applies the tuned PID parameter table during temperature control to ensure precision at any point.

Communication functionality: Equipped with RS-232 communication port for connection with an upper-level host system.

Press-seal design: Features a quick-press sealing structure for leak prevention and convenient on-site transport.

Language & Unit Switching: Supports switching between Chinese and English; also allows switching between Celsius (℃) and Fahrenheit (℉).

Overheat protection: Includes over-temperature protection and heating limit functions for safe and reliable operation.

Touch screen operation interface

Technical Parameters

Product Name	Portable Smart Refrigerated Calibration Bath
Model	DTS-20BG	DTS-30BG	DTS-95BG	DTS-125BG	DTS-40BG	DTS-30BG-mt
Temp range	-20 ~ 150℃	-30 ~ 150℃	-40 ~ 95℃	-40 ~ 125℃	-40 ~ 150℃	-30 ~ 150 ℃
	-20 ~ 180℃	-30 ~ 180℃			-40 ~ 180℃	-30 ~ 180 ℃
	L40N-180
Control style	Smart Touch Screen
Uniformity	≤ 0.02℃（ 0℃ ）； ≤ 0.01℃（ 100℃ ）					≤ 0.01℃（ 100℃ ）
Stability	0.02℃ / 10min（ 0℃ ）					0.02℃ / 10min（ 0℃ ）
Working area	ф80×280（mm）					ф100×300（mm）
Max power	1 kW					1 kW
Overall dimensions	225×430×500（mm）					185×331× (H)400（mm）
Cooling time	0°C down to -40°C @ 50min ; RT down to 0°C @ 30min
Ramp-up time	-40°C to 0°C @ 20min ; -20°C to 0°C @ 10min 0°C to 100°C @ 25min ; 30°C to 180°C @ 55min

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