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Experience The New Level Of Data Loggers With The Expert Logger Series From Instrument Choice!

The Expert Data Logger series, manufactured by Delphin, is a new generation of data loggers. It combines the latest communication technology with advanced measurement technology and FPGA processing, making it especially powerful for applications where users have multiple and flexible sampling schedules.

The Expert Data Logger enables the measuring and logging of data to be customized for each specific application. In many circumstances, there are parameters of interest that will change slowly, such as the temperature of a big furnace or the fluid level within a tank. Other parameters can change very quickly, such as a fluid line’s pressure or flow rate. By enabling multiple sample rates to take place, intelligent data loggers can be programmed to collate the sample intervals with how quickly the data changes, which eliminates the redundant data, meaning you are left with useable data.

What is a Data Logger?

A data logger is a compact, battery-powered device equipped with an internal microprocessor, data storage, and one or more sensors, or sensor ports. Data loggers can be deployed in a variety of environments to record measurements at set intervals for up to years at a time, unattended.

There are Data Loggers for Many Applications

Instrument Choice supplies data loggers in all shapes, sizes and designs to cover a huge range of applications that includes logging data about temperature, humidity, light, water, pasteurisation, pH, electricity, pressure, pulse, shock, soil moisture, sound, building stability, structural forces, gas, geo-location and more. Many data loggers are designed for specific or specialised applications, whereas the Expert Data Logger is more multipurpose, covers a wide range of applications, and interfaces seamlessly with many devices and protocols.

Discover more data loggers

Applications for the Expert Data Logger

The versatility of the Expert Data Logger covers such applications as:

  • Data logging
  • Environmental measurement technology
  • Product testing
  • Measurement data diagnosis
  • Lab data acquisition
  • Trials and tests
  • Energy optimization


What Makes the Expert Data Logger Series So Special?

The Expert Data Logger is designed to match your specific requirements – not the other way around. The device is built for versatility and can be set to do everything for any user. It functions perfectly as a stand-alone unit or connected to the internet/ intranet. State-of-the-art communication is assured through its range of interfaces. The Expert Data Logger is also compact; ideal for installation in switch cabinets and in line with the motto: a smaller design means smaller costs. The features that it offers are what makes it one of the most versatile loggers available.

Features include:

1.FPGA technology - means this device can process up to 46 analogue input channels at both low and high rates of sampling. 

2.Precise, secure, reliable, convenient data acquisition, storage and transmission -

a.measurement data can be accurately acquired, independently stored and transmitted to the internet or a PC for evaluation via USB, LAN, WLAN or LTE.

b.Precision measurement is ensured using a 24-bit converter and voltages can be precision recorded to the μV range. All channels are galvanically isolated to suppress earthing loops and the tried and tested input circuitry protects the device against voltage spikes. Electromechanical components are avoided (relays multiplexer) and the device operates noise and maintenance free. Delphin‘s patented analogue inputs guarantee years of reliable measuring work.

3.OPC UA Interface - OPC UA is an increasingly recognised protocol.

a.When used with the Expert Logger devices, measurement acquisition, monitoring and test stand automation applications can be made ready for open data exchange data in accordance with Industry 4.0/Internet of Things.

b.Both OPC UA servers and clients have been integrated into the Expert Logger devices to enable fast, easy and barrier-free data exchange with sensors and sub-systems also supporting OPC UA.

c.Many products such as frequency converters, controllers and regulators have already fully integrated OPC UA. The opportunities provided by OPC UA have been identified within the measurement and sensor technology sector with several sensors and actuators now available with OPC UA interfaces.

  • 4.Other Interfaces - in addition to OPC UA, Expert Logger devices are also equipped with PROFIBUS, ModBus, CAN-Bus and serial interfaces for sensor and field level connections. PCs can connect via LAN, WLAN or USB. PLCs can be easily connected via the ProfiBus or ModBus interfaces. A remote connection is optionally possible by an integrated 3G / 4G modem.

Here is a comprehensive list of interfaces for the Expert Logger:

  • 1 x USB Master (2.0)
  • 1 x USB Device (2.0)
  • 1 x SDI12 (by using deleted 1xDI and 1xDO) (only 100 and 200)
  • 2 x CAN Bus (2.0)
  • 3 x RS232/485 (2 x PROFIBUS Slave, ModBus RTU, ASCII Protocol)
  • 1 x WLAN oder WWAN (optional)

5.Powerful Memory - internal 2 to 14 GB memories (model offerings and memory size differ across models and selection) can independently store up to 420 million measurement values with date and time stamps to micro second precision.

6.Extended Storage Capacity - via external USB or LAN storage devices (NAS).

7.Energy Efficient - an integrated, energy-saving “sleep function “automatically switches off the device during breaks in measurement acquisition. The Expert Logger operates with standard batteries, rechargeable batteries or solar units.

8.Simple Operation - sensors are connected via plug-in screw terminals and a chart clearly shows how channels are arranged. Users always have a good overview of the channels despite their high density. Each set of four terminals can be configured as two differential inputs to measure voltage, currents, thermocouples, or to take measurements from a 4-wire RTD.

9.Easy to Configure - the Expert Data Logger is simple to configure from a PC. These settings remain stored within the Expert Data Logger even when disconnected from the power supply. The device settings can also be read out and stored on a PC and analysed offline without the need for a connected Expert Data Logger. The offline configuration settings are then simply read into the device when connected. The software used for configuration is simple to operate to let users fully focus on their measurement tasks.\

10. Intelligent signal processing - signal processing using internal software channels significantly simplifies measurement tasks. Flexible calculation channels enable measurement data to undergo further computation and recording. Integrators directly calculate volumes or quantities from time-related measurement data such as mass and discharge flow rates. Limit values can monitor measurement data and be used to switch digital outputs or automatically send emails. Complex signal processing is possible using pulse counters, stop-clock functions and operating-hours counter. Averages can be calculated and recorded as time-weighted or moving. The Expert Logger’s software channels clearly set it apart from similar devices, which makes it very popular amongst users.

What are the Models in the Expert Data Logger Series Range?

Expert Logger is available in four versions which differ only in the number of analogue and digital inputs they can process.

Model differences:


What are the Alternatives to the Expert Data Logger?

After conducting extensive research, Instrument Choice scientists concluded that the Expert Data Logger range was superior to other brands in terms of performance and suitability for a wide range of applications. For this reason, it recommends and stocks these data loggers.

In our opinion, the closest comparable manufacturer would be the Datataker data loggers series.

DataTaker is supplies both general purpose and specialised data loggers and data recording equipment that supports a broad range of customers across many industries including environmental, industrial, construction, manufacturing, process management, scientific, laboratory and education. Their data loggers are designed to be compatible with almost all types of sensors, with a strong focus on communications to make your data easily accessible.

Not sure what model Expert Logger you need? Want to learn about comparable products? Need expert support for testing or setting up an Expert Logger?

Contact an Instrument Choice Scientist.