Dry block temperature Calibrator (NTC/NTC(i))

Overview:

The Dry Block Temperature Calibrator is a versatile and portable instrument designed for accurate temperature calibration, testing, and maintenance across industrial and laboratory environments. Featuring fast heating and cooling performance, the unit operates over a temperature range from –35°C below ambient up to 123°C (for example, –10°C at an ambient of 25°C), making it suitable for both positive and sub-zero temperature applications. The calibrator is controlled through an advanced PID controller, ensuring precise temperature regulation, good stability of ±0.1°C, and reliable performance with an accuracy of ±0.4°C.

With a resolution of 0.01°C up to 99.99°C and 0.1°C above 99.99°C, it provides dependable measurement precision for demanding calibration tasks. The system achieves heating from ambient to 123°C in approximately 25 minutes and cooling to its maximum negative temperature in about 30 minutes, with a stabilization time of around 10 minutes, enabling efficient operation during calibration procedures.

The instrument includes multiple functional capabilities such as a built-in transmitter power supply, temperature switch test facility, and RTD and thermocouple measurement capability (available in the NTC (i) model), allowing comprehensive testing of temperature instrumentation without the need for additional equipment. A multi-hole insertion tube with a block diameter of 25.6 mm and immersion depth of 120 mm enables simultaneous calibration of multiple sensors, improving productivity. The insertion tube features a diameter of 25.4 mm with a depth of 110 mm for effective heat transfer and uniform temperature distribution. A bright green LED display ensures clear visibility, while selectable °C/°F units provide operational flexibility. Powered by 230 V AC ±2.5%, 50 Hz, the unit has compact dimensions of 153 × 240 × 340 mm and a lightweight design of approximately 7 kg, making it ideal for both field and workshop use. Overall, the calibrator delivers a reliable, efficient, and user-friendly solution for temperature calibration, maintenance, and verification applications across various industries.

Dry block temperature Calibrator (NTC/NTC(i)) Applications:

Calibration of multiple probes simultaneously using multi-hole insertion block
Shutdown and turnaround maintenance activities in industrial facilities
Verification of temperature data loggers and monitoring instruments
On-site calibration where portability, fast stabilization, and integrated testing features are required
Manufacturing process temperature monitoring and quality assurance
Calibration and verification of RTD and thermocouple temperature sensors
Testing and calibration of temperature transmitters, indicators, and controllers
Simulation and measurement of temperature signals for loop checking and commissioning

Model	NTC & NTC-i
Range	-35 from ambient to 123°C (E.g. : -10 @ Ambient 25°C)
Resolution	0.01°C up to 99.99°C & 0.1°C above 99.99°C
Accuracy	±0.4°C
Stability	±0.1°C
Stabilization Time	10 minutes
Measurements (Only for ‘I’ Model)	8 Types of TC & RTD Pt-100(385), mV, mA
Units	°C/°F Switchable
Display	LED Green
Heating Time (ambient to 123°c)	25 minutes (approx.)
Cooling Time (ambient to negative max.)	30 minutes (approx.)
Switch Test Facility	Provided
Transmitter Power Supply	Provided
Block Diameter	25.6 mm
Block Immersion	120mm
Insertion Tube Diameter	25.4mm
Insertion Tube Length	120mm
Insertion Tube Depth	110mm
Power Supply	230V AC ±2.5/50 Hz
Weight	7 Kgs.