Data logger ALMEMO® 2690-8A ALMEMO® data logger Precision measuring instrument Comprehensive range of functions for all application areas. Increased measuring accuracy, fast measuring rate. Generously dimensioned graphics display, bright illumination, 5 measuring inputs. Runs on rechargeable batteries, charging via the device itself Technical data and functions ALMEMO® 2690-8A • Increased measuring accuracy and stability • Fast measuring rate, up to 50 measuring operations per second With SD memory card, up to 100 mops, optional for 1 channel up to 500 mops • 5 measuring inputs, electrically isolated • Integrated atmospheric pressure sensor, for automatic pressure compensation, inter alia for Pitot tube flow measurement and humidity variables • Over 65 standard measuring ranges • Support for ALMEMO® plugs with multi-point adjustment, special linearization, and special measuring ranges • Option KL for independent multi-point adjustment or special linearization programmable in 30 points and management of calibration data saved in the sensor connector and the measuring instrument • Higher measuring quality thanks to electrical isolation between measuring inputs and device power supply (device ground) • Improved cold junction compensation with 2 sensors • Data logger with internal EEPROM, sufficient for 200,000 measured values, configurable as linear or ring memory • Memory connector with micro SD (accessory) • Sleep mode for long-term recording • Generously dimensioned graphics display, bright illumination, large display of measured values • Measured values can be displayed graphically in line chart or bar chart form or numerically in various sizes. • 3 user-defined menus can be freely configured from a range of 50 functions. • Easy to operate by means of 4 soft-keys and cursor block, menu-guided with wizards and context-sensitive help windows • Choice of languages: German, English, French • 2 ALMEMO® output sockets, suitable for digital interfaces, analog output, trigger input, alarm contacts, memory card • Runs on rechargeable batteries (standard), high-speed charging in the device itself using the mains unit, included in delivery • Modern housing with rubberized impact protection and folding stand. Technical data 11/2025 • We reserve the right to make technical changes. Precision class Measuring rate Measuring inputs Electrical isolation Option GT (standard from order no. H2411x) Additional channels AA (see general technical specifications) (100), 50, 10 and 2.5 mops 5 ALMEMO® input sockets with semiconductor relays (50 V) for analog sensors Additional electrical isolation between measuring inputs and power supply (device ground) 4 function channels, device-internal Sensor power supply Rechargeable battery/ies 6 / 9 / 12 V, maximum 0.5 A Mains adapter 12 V, maximum 0.5 A Atmospheric pressure sensor Integrated Measuring range 700 to 1100 mbar Outputs 2 ALMEMO® sockets, suitable for all output modules (analog / data / trigger / relay cables, memory, etc.) Graphics display 128 x 128 pixels, 16 rows Illumination 5 white LEDs, 3 brightness levels Keypad 9 tactile silicone keys (4 soft-keys) Memory EEPROM sufficient for 200,000 measured values Date and time-of-day Real-time clock, buffered with battery Power supply Rechargeable battery/ies 3 AA batteries NiMH or alkaline integrated, high-speed charging (2.5 hours) Mains adapter ZA1312NA12 100 to 240 VAC to 12 VDC, 1.5 A electrically isolated DC adapter cable electrically isolated Current consumption (without input and output modules) Active mode approx. 17 mA With illumination approx. 25 to 140 mA Sleep mode approx. 0.05 mA Environmental conditions see general technical data

ALMEMO® 2690-8A Precision measuring instrument, 5 measuring inputsData logger with internal memory or external memory connector (accessory) Accessories Order no. 11/2025 • We reserve the right to make technical changes. Memory connector with micro SD, including USB card reader (see chapter „General accessories44) DC adapter cable, 10 to 30 VDC, 12 V / 1 A, electrically isolated Generously dimensioned carry case, aluminum profile frame / ABS Connecting cables Order no. Ethernet data cable, electrically isolated Analog output cable, electrically isolated, 1 x 20 mA Analog output cable, electrically...