www.ahlborn.com 0 CI ALMEMO® MEASURING INSTRUMENTS The ALMEMO® System Since the first ALMEMO® handheld instrument was introduced in 1993, we have continuously improved the fascinating ALMEMO® system with its infinite possibilities for sensor connection, data processing and device networking. As a result, a wide range of all types of measuring instruments is now available; from 1-channel transmitters to data acquisition systems with more than 1000 measuring points. The measuring instruments of the ALMEMO® series only differ from each other with regard to their enclosure (handheld instruments, desktop instruments, 19" systems, switchboard instruments, transmitters etc.), the number of measuring inputs (1 to 250), the display, output and operating controls, and the power supply. By means of the intelligent ALMEMO® connector, when connecting the sensors and interface cables, the instruments will be completely programmed up to the time-oriented sequential control. They provide a uniform function range and configurable options. Furthermore, all parameters can be accessed via the interface and can also be modified as the memory devices built into the connectors can be repeatedly overwritten. ► The ALMEMO® Principle: Only One Instrument For All Sensors: There is a wide range of transducers, sensors and signals that, when using the patented ALMEMO® connector system, can be connected to any measuring input of any measuring instrument. No programming is required as all sensor data is contained in the connector plug, enabling the measuring instrument to be automatically configured as soon as it is connected. By means of the sensor data memory (EEPROM) all sensors can be calibrated, scaled and identified with a uniquely defined designation. This individual sensor designation allows for a neat arrangement of the measurement setup and avoids confusion. Sensor errors can be corrected within the connector, i.e. simple sensors become precision transducers. Standard signals can be displayed with their original dimension. For multi sensors, e.g. temperature and humidity, generally, only one shared connector will be required. The programming can be protected by a graded locking function. Conclusion: Highest possible precision at minimum expenditure; faulty measurements do not occur. ► You Will Not Need Any New Sensors To Use ALMEMO® Instruments! We will provide you with the matching connector for your own existing sensors, which are very easy to connect. Furthermore, you can program ALMEMO® connectors on your own via keypad, terminal or software. The memory devices within the connector can be repeatedly overwritten. ► ALMEMO® Instruments Can Be Used Universally! All instruments contain the same test input circuitry. More than 60 standard measuring ranges are available for branch-independent applications, e.g. for measuring the following:- Temperature, humidity, flow, heat flow, pressure, rotational speed, frequency, resistance, current, voltage, force, wire strain gauges, displacement, pH values, redox potential, conductivity, O2, CO2, CO, O3 etc. Maximum and minimum values will be automatically stored. Measured values can be averaged over single measurements, over the output cycle or over the total duration of the measurement; limit values can be monitored by programming max/min values. Measured values can be corrected with regard to the zero point and slope (gain) and can be scaled by factor, exponent and dimension. s. e g n a ch al ic ni ch te e k a m to igh e ► ALMEMO® Instruments Are Nevertheless Individual! ALMEMO® instruments automatically identify the characteristic data of the connected sensor. Specific functions will only be activated if the corresponding connector, interface cable or module are present. With humidity sensors the dew point, mixture ratio, vapour pressure and enthalpy will be automatically calculated. For measurements with psychrometers, Pitot tubes and probes for solute oxygen, the latest atmospheric pressure data can be entered or automatically compensated using pressure sensors. The influence of temperature can be compensated when measuring dynamic pressure, pH value, solute oxygen and conductivity. For volume flow measurements the cross section can be entered for flow sensors. Connectors with an integrated interface circuitry are available for special sensors. > 01.02 e W 0 0 /2 10

ALMEMO® MEASURING INSTRUMENTS .tn ► ALMEMO® Instruments Meet The Most Demanding Requirements! 16-bit or 24-bit A/D converter, digital linearization (for Pt100 sensors according to the new ITS 90 temperature scale), digital calibration . Optimal cold junction compensation is ensured by using precision thermistors in the socket spring. Measuring inputs, power supply and interfaces are electrically isolated from each other. ► The ALMEMO® Data Acquisition Adapts To Your Requirements! Data loggers have a 512-KB memory (sufficient for 100,000 measured values), expandable up to 32 MB, and configurable...

www.ahlborn.com 0 CI ALMEMO® MEASURING INSTRUMENTS Humidity Measurement: The humidity sensors provide 4 channels, which can be optionally programmed for the variables temperature, relative humidity, dew point, mixture ratio, partial vapour pressure or enthalpy. The first 4 variables are available as standard. All measuring and programming functions (max, min, limit values) can be applied to all channels. In addition, the function atmospheric pressure will be activated for psychrometers and allows for entering and compensating a strongly deviating atmospheric pressure (e.g. for high elevations...

ALMEMO® MEASURING INSTRUMENTS 0 ALMEMO®: General Technical Specifications Inputs:_ o o e CD e < CD rD ch" o e h i ro h CTQ rD Channel switching between input sockets 4-contact with photo-MOS relay Potential separation : Maximum 50 V (for measuring modules with higher potential separation, see Chapter 03) Offset voltage : <5 |jV 2.5 or 10 measuring operations per second Effective in range -30 to +100 °C Accuracy ±0.2 K ±0.01 K / °C 22 °C ±2 K 7.2 to 12 V unregulated, depending on power supply, maximum 70 mA / device Automatic zero-point correction, measuring current calibration Automatic sensor...