Testo 191 | HACCP data logger system

The Testo 191 HACCP data logger system has been designed for pasteurization, sterilization and freeze-drying processes and enables the intelligent monitoring of temperature and pressure in thermal preservation processes. Available with 4 different types of temperature loggers, 1 pressure logger and suitable accessories offer the appropriate solution for every measurement application.

HACCP (Hazard Analysis and Critical Control Points) is a systematic preventive approach to food safety from chemical, biological and physical hazards in production processes that can cause the finished product to be unsafe and designs measures to reduce these risks to a safe level. In this manner, HACCP attempts to avoid hazards rather than attempting to inspect finished products for the effects of those hazards. The HACCP system can be used at all stages of a food chain, from food production and preparation processes including packaging & distribution.

Features

• User friendly software with a guided measurement and documentation process, along with a 1-click report function
• Fast and secure battery replacement with an option of two different battery types.
• Optional multifunction case for secure storage of the instruments and it enables them to be read out and configured using the integrated programming unit.
• Simultaneous configuration and read out of up to eight loggers via multifunctional case.

Technical

Temperature probe type     Pt1000

Temperature probe range     -50 to +140 °C

Temperature probe accuracy     ± 0.2 °C (-50 to -40 °C), ± 0.1 °C (-40 to +140 °C)

Temperature probe resolution      0.01°C

Temperature probe memory, T1, T2 and T3 models      60,000 readings

Temperature probe memory, T4 model      30,000 readings per channel

Logger sizes - See data sheet for full details - Temperature units 20 mm diameter, pressure unit 22 mm diameter

Pressure probe type     Piezo-resistive

Pressure probe range     1 mbar to 4 bar (absolute)

Pressure probe accuracy    ± 20 mbar

Pressure probe resolution     1 mbar

Pressure probe memory      60,000 readings

Battery types - all models :    ½ AA lithium,  operating range -50 to +140 °C,  2,500 operating hours typical (measuring cycle 10 seconds at +121 °C) OR 2 x button cell lithium, operating range -20 to +140 °C, 250 operating hours typical (measuring cycle 10 seconds at +121 °C)