Measuring Instruments Data logger ALMEMO® 809 ALMEMO® data logger Precision measuring instrument, latest V7 generation. Nine measuring inputs for all sensors. Operates as data logger or PC interface. Increased measuring accuracy, fast sampling rate, with ALMEMO® D7 sensors up to 1000 measuring operations per second. 11/2025 • We reserve the right to make technical changes. Data logger from our latest V7 generation. Data logger ALMEMO® 809 offers outstanding functions and applications using our latest D7 sensors. This measuring instrument operates either as data logger or as PC interface using the WinControl measuring software (an accessory). The device parameters can be fully configured by means of the ALMEMO® Connect software. ALMEMO® standard / D6 / D7 sensors can be fully configured by means of the ALMEMO® Connect software. Data logger for all storage applications For the purpose of saving measured values the device incorporates an 8-MB flash memory. This can also be configured as a ring memory for monitoring tasks. To save larger data quantities an external memory is available in New digital ALMEMO® D7 sensors the form of a plug-in SD card. With these digital ALMEMO® D7 sensors the existing ALMEMO® For autonomous long-term monitoring the data logger can also system is enhanced by many new functions. These operate via an be run in energy-saving sleep mode. all-digital interface to the ALMEMO® 809 measuring instrument ensuring high-speed serial transmission of all measured values. Other equipment The measuring ranges of ALMEMO® D7 plugs are independent With two ALMEMO® output sockets it is possible to connect of the measuring instrument and can be expanded as and when simultaneously a PC / network, an ALMEMO® output interface required for new applications. with relays and analog output, or an ALMEMO® memory Measured values can be displayed with up to 8 digits connector with an SD card. (depending on quantity and range) and the units with up to 6 There are five LEDs for indicating various operating states. The characters. Sensor designation and information can be up to 20 operating key is used to switch on the device and to start / stop a characters. Each ALMEMO® D7 sensor has its own processor. measuring operation. They all work in parallel at their own sensor-specific sampling rate. With option KL it is possible - for an ALMEMO® sensor (e.g. D7 sensors thus attain very high measuring speeds in dynamic temperature or pressure sensors) - to program multi-point measuring operations. Scanning times on the ALMEMO® 809 adjustment or linearization in the ALMEMO® plug itself. This can be set individually for quick-acting and slow-acting sensors. option is possible with all ALMEMO® plug versions, standard The ALMEMO® D7 plug can process up to 10 channels for connectors (analog or DIGI), ALMEMO® D6 and D7 plugs. measured values and function values. This includes new applications, especially for multi-purpose sensors (e.g. Meteo sensors) and for linking up to complex third-party devices (e.g. chemical analysers, power analysers). Measuring inputs for nine ALMEMO® sensors, all generations Data logger ALMEMO® 809 incorporates nine measuring inputs. The measuring instrument can process up to 90 measuring channels - depending on the sensors connected. All new and already existing sensors designed for any measurable variable can be connected and evaluated. Sensors using analog signals pass via the integrated high-speed, high-resolution A/D converter. Additional electrical isolation between measuring inputs and power supply (device ground) increases measuring quality. Digital D6 and the latest digital D7 sensors transfer measured values to the measuring instrument directly in digital form. The measuring instrument supports all ALMEMO® plug connectors and sensor functions. All

Measuring Instruments Precision measuring instrument, latest V7 generation, nine measuring inputs Data logger with internal memory or external memory connector (accessory) ALMEMO® 809 Technical data Measuring inputs Nine ALMEMO® input sockets suitable for all generations of ALMEMO® sensors, analog sensors, D6 and D7 sensors Precision class AA see general technical data Total sampling rate up to 2000 measurements/s Sampling rate for analog sensors, D6 sensors Electrical isolation with semiconductor relays (50 V) for analog sensors Additional electrical isolation between measuring inputs and power...