Medical Sector

Hospital sterilization control

TMI-Orion offer a range of self-contained data loggers for sterilization control. These data loggers are used by hospital sterilization rooms, validation organizations or manufacturers of sterile products.


A set of NanoVACQ PT-Tc and NanoVACQ Temperature dataloggers (maximum 12), associated with a software compliant with the norm IS0 17665, an option of QLEVER Software, has been designed for operational qualification. The logger models can be different within a given system. This system allows full compliance with the International norm requirements.

A multi-logger interface makes programming and downloading possible up to twelve loggers at the same time.

USB multi-logger interface, removable connectors

USB multi-logger interface system with removable connectors

USB multi logger interface

USB multi-logger interface system with different logger models

International Norm ISO 17665 and EN554 - Sterilization of medical devices - Validation and routine checking of steam sterilizers - is the reference standard for operational qualification of steam autoclaves.

The norm demands that :

  • Temperature be measured at the core of the load
  • Saturated steam be checked at base plate level
  • Temperature and pressure be maintained constant while on hold pattern
  • Sterilization temperature while on hold pattern be :
    • within specified temperature range, the upper control limit being equal to sterilization temperature plus 3°C,
    • with no deviation exceeding 1°C,
    • and temperature difference of any 2 points inferior to 2°C.
  • Temperature be set within 15s in autoclave whose volume is inferior to 800L, and within 30s in more voluminous ones.

The loggers can be located at the core of loads. They log temperature and pressure versus time.

Logger placed in load

Sterilization cycle control inside load

Loggers placed inside laundry load

Sterilization cycle control inside laundry load

QLEVER system performances meets or exceeds the recommendations of the guide of European standard EN554, published by AFNOR (Reference GA S 98130) and ISO 17665.

  • Temperature accuracy better or equal to 0.17°C - NanoVACQ 1Tc: 0.10°C
  • Pressure accuracy better or equal to16mbar - NanoVACQ PT-Tc: 10 mbar

Furthermore, the QLEVER software enables the publishing of a report in compliance with norms requirements. (see QLEVER data sheet).



Thanks to an excellent reliability at elevated temperature, the TMI-Orion data loggers are very suitable to the routine control of the autoclaves specifications during sterilization cycles.



For ethylen oxide low temperature sterilization process the NanoVACQ-Ex data loggers have temperature and humidity/temperature sensors.

These loggers can be programmed and read out with multi-logger interface. They are designed according the Ex norms (explosion proof).




NanoVACQ Flat - MiniVACQ

Two data logger models fit the control of temperature for washing and desinfection processes: NanoVACQ Flat and MiniVACQ.
They can easily be placed inside the equipments thanks to their small dimensions.