High-temperature dry block heater Medusa 510

with thermostatdigitalwith dual control

Overview
Medusa 510 is a calibrator for temperature probes covering a range of 30°C to 550°C, offering a large calibration volume of 45 mm diameter by 285 mm depth. Accessories allow conversion for surface sensor calibration, use as a blackbody source for infrared thermometer calibration, and implementation as an ITS-90 Fixed Points system with calibration uncertainties down to 0.001°C.

Operation and use
The bath includes, in addition to the main zone, two complementary zones (top and bottom) to compensate for temperature losses at the ends and ensure a constant temperature inside the insert. For comparison calibration, Medusa 510 must be used with an insert. The standard insert has six 8 mm diameter wells at 250 mm depth. An alternative insert of 44 mm × 170 mm depth is available and can be suspended to be height-adjusted by the user.
Medusa 510 is available in two versions: model B (Basic) and model S (On-Site). Model B is equipped with a controller displaying the setpoint and the temperature measured by the control probe. Model S adds a second digital indicator allowing connection of a reference probe to improve accuracy (elimination of gradient and loading errors), a universal temperature input (Pt100, thermocouples Types K, N, R, S, L, B, PL2, T, J and E, and linear process inputs) and a timer to regulate the bath between two temperatures and automate the execution of ITS-90 fixed points. The indicator can be programmed with up to 5 calibration points and the indicator and controller are addressable via communication interfaces.
For surface sensor calibration and blackbody source use, the use of an external reference probe is recommended. For laboratory use, it is preferable to connect Medusa 510 to a high-performance temperature indicator.

Key features

• Large calibration volume: 45 × 285 mm depth
• Wide temperature range: 30°C to 550°C
• Suitable for comparison calibration and ITS-90 Fixed Points
• Designed for use with long-stem thermometers

Models and accessories information (excerpt)

• MEDUSA 510 B — Portable calibration furnace – Basic model. Supplied as standard with: standard sleeve 6 wells (Ø 8 mm, 250 mm depth), Cal Notepad software, serial communication cable, user manual, traceability certificate.
• MEDUSA 510 S — Portable calibration furnace – On-Site model. Supplied as standard with: standard sleeve 6 wells (Ø 8 mm, 250 mm depth), Cal Notepad software, serial communication cable, traceability certificate, digital indicator and built-in timer.
• Metal sleeves: 511-06-01 standard sleeve 6 wells Ø 8 mm (depth 250 mm); 511-06-02 un-drilled sleeve; 511-06-03 specific sleeve; 510-06-04 adjustable equalization block (6 × Ø 8 mm wells, depth 157 mm).
• Probes and accessories: 935-14-95H/DB working Pt100 probe; reference probes for surface sensor and blackbody calibration (replacement references indicated); support for Indium-to-Zinc cell with insulators; transport case.
• Blackbody source: 511-06-05 blackbody target.
• ITS-90 Fixed Points cells available in metal or quartz envelope (mini Indium, Tin, Zinc, etc.), supplied with purity certificate or 5-point calibration certificate according to option.

Note on uncertainties
Calibration uncertainties are provided as a graph in the product documentation (uncertainties depend on configuration and temperature).