Data Logger MDL
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PRODUCT INFORMATION MDLData logger scM er MESS-SYSTEMTECHNIK Functions and advantages » Up to 8 x analogue inputs, 3 x wind speeds and directions, 1 x precipitation, 3 x outputs. Extension options for max. 40 analogue inputs » 3 types of data storage: interval oriented, conditional and event-oriented storage » actual value, minimum, maximum, average value, standard deviation, total, day total, intensity » Comprehensive reporting function via Sms, modem retrieval or switch contact » rapid retrieval of current measured values via SMS » Minimum energy requirement due to "sleep mode” » Simple connection to all types of sensors, regardless of their pin configuration and voltage supply » Rapid and assistant-supported parameterisation » Storage without a backup battery for 600,000 measurement data items

Introducing the MDL product range The data loggers in the MDL range prove their worth whenever precise recording, storage, evaluation and documentation of measurement data is required under extreme environmental conditions. through the use of highly robust, reliable and energy-saving technology, the logger environmental measuring technology range has been optimised to cope at a distance from any infrastructure. In order to meet the specific measuring requirements, the loggers in the MDL range have comprehensive functions for recording, storing, warning about/reporting, controlling and...

Types of data storage With extreme events, high time resolutions of the data sequences are necessary for evaluations and analyses. Beyond the extreme event, a lower level of data quantity is generally required. The MDL makes anything possible, from simple interval storage through to complex, conditional storage for extreme events. Interval-oriented storage or scheduled value storage For each connected measuring input, the measuring data can be recorded in an interval of between 1s and 24h (Fig. 1). Equally, the measurement value storage operations can be conducted at one or more specific...

Conditional storage with limit value The storage is triggered as a result of definitions of limit values which are either not reached or are exceeded. At the same time as the synchronous storage, Fig. 3: Absolute limit value excess: additional 1-minute asynchronous storage when limit value is exceeded – event is recorded at high resolution e.g. at 10-minute intervals, a conditional, asynchronous storage can be conducted when the limit value is exceeded, e.g. in 1-minute intervals. Fig. 4: Relative limit value excess: storage is triggered when a relative measure value is changed Fig. 5:...

Comprehensive reporting function The signals are processed directly by the logger, and are used for decision processes. depending on the definition of the limit value and the type of test, different reporting scenarios can be realised. the report is issued when a limit value is exceeded/is not reached, or when an event occurs, and the report is triggered by a combination with another measurement value/limit value. the report is issued by means of a relay contact for switching connected systems, by a modem call in order to forward the report in warning systems, or by Sms in order to inform...

Simple connection and assistant-supported parameterisation of the sensors Any measuring transmitter, regardless of the power supply required for the sensor, can be connected to the inputs A1 to A8, W1 to W2 and Z on the data logger without external circuitry (for 3 of 40 possible connection options, see Figs. 11 to 13). The parameterisation is achieved by the assistant-supported selection of the measuring transmitter from the sensor database with pre-defined transmitter and parameterisation settings. Each sensor is supplied with power via the data logger. By integrating a voltage converter...

Technical specifications Voltage Current Inputs – analogue Inputs – frequency (wind) Input – impulse (precipitation) Interface – digital Fail-safe ring memory (not backup battery required for storage), 2 MB internal (corresponds to approx. 600,000 measurement values) Interval Conditional When limit values are exceeded or not reached Storage methods Synchronous and asynchronous interval; 1s – 24h Measurement data is stored depending on one or more other measurement values (combined switching) Measurement values store as scheduled values, intensity, minimum, maximum, total, average values,...