Online help for 4-Channel Data Logger on myDatalogEASY IoTmini

General product information

The 4-Channel Data Logger is a data logger designed for stand-alone operation. It is used to determine, process and transmit analogue and digital signals. Thanks to the 4 universal inputs, which can be operated in different analogue and digital modes, the 4-Channel Data Logger is compatible with a large number of different sensors. The sensors can be connected directly, without additional energy sources. The energy supply is then provided from the 4-Channel Data Logger , which, depending on the power supply unit used, can itself be operated without mains supply. In addtition to the switchable and selectable sensor supply, the 4-Channel Data Logger is also equipped with an isolated switch contact and a switchable 3,3 V supply. These can be used to control actuators. An interface for connecting a PT100 or PT1000 is moreover available following the chargeable release. By using the mobile network to transfer data to the server, the site rarely has to be physically accessed and the data can be accessed at all times.

Product characteristics:

  • Universal inputs for digital and analogue signals
  • Switchable and adjustable supply voltage for sensors
  • Isolated switch contact
  • Internal battery compartment
  • Battery, rechargeable battery or direct power supply
  • Exactstate of charge of the battery using Coulombmethod
  • Compact design
  • Integrated charge control
  • Configurable via web interface
  • Device time synchronised with the sever
  • Hardware real-time clock
  • Very low commissioning & operating costs
  • Integrated durable SIM chip

Application:

  • Level measurement
  • Flow measurement
  • Temperature measurement
  • Transmission of measurement values of probes
  • Remote meter reading

This online help is applicable from:

  • Firmware version: 01v045
  • IoT app version: 24v000
  • Server version: 54v00x
  • Product revision: 1.1

Frequently asked questions (FAQs)

Blink code Colour Description
0x --- Transport lock (transmission OFF, measurement OFF)
1x green Last connection OK
2x red Last transmission faulty
7x red Network block/no matching provider
8x red No mobile network
9x red incorrect PIN/1 attempt remaining
10x red No mobile network connection
11x red No server available
12x red Faulty SIM chip

A detailed explanation is provided in section Three colour status LED.

How-To-Video: Triggering Aloha transmission mode

 

Tap theMDN Magnet (206.803) for at least 3 sec. on the position shown in the following figure.

1 MDN Magnet (206.803) 2 4-Channel Data Logger

Briefly (approx. 1 sec.) tap theMDN Magnet (206.803) on the position shown in the following figure.

Connection examples (digital, open collector output, 0/4...20 mA, 0...2/10 V)

1 Main terminal block of the 4-Channel Data Logger 4 2-wire mA sensor
2 Isolated relay contact 5 3-wire mA sensor or 3-wire U-sensor
3 Sensor with open collector output    

Connection examples (active mA output)

1 Main terminal block of the 4-Channel Data Logger 2 Active mA output, transducer or isolation transformer

A detailed explanation is provided in section Connecting the sensors, actuators and power supply.

Microtronics Engineering GmbHis constantly testing various sensors with mA output for compatibility with the4-Channel Data Logger .

A list of compatible sensors is provided in section Compatible sensors.

Activate transport mode by setting the "operating mode" in the "Basic settings" configuration section (see Basic settings) to "transport". After that, initiate a connection (see Aloha transmission mode) to transmit the changed configuration to the 4-Channel Data Logger .

A detailed explanation is provided in section Storage of the product.

The measurement data is assigned to the site and not to the linked device. If a device is replaced, all data (measurement values and configurations) are retained. The site is only assigned a different device by changing the serial number. From this moment on, the site receives the measurement data from the newly assigned device.

Proceed as follows to assign another 4-Channel Data Logger to the site:

  1. Make sure that no PSU is inserted in the new device, so that it cannot connect to the server.
  2. Open the default input screen for configuring the site (click on the pencil symbol in the list of sites, see "Sites / Applications" area at customer level).
  3. Enter the serial number of the new device in the "Device S/N" field of the configuration section "Site".
  4. Trigger a connection on the device to be replaced (see Solenoid switch).All data that has not yet been transmitted is transferred to the server.
  5. Check whether all relevant data has been transferred. If necessary, trigger the connection again.
  6. Connect the new device to the power supply (optional for PSUs with integrated energy storage).
  7. Insert a PSU in the new device. The connection should be established automatically.
  8. Trigger a connection on the new device to transfer the the configuration of the site (and therefore also the assignment to the site) to the new device.
  9. Disconnect the device to be replaced from the power supply.

From this point on, the site receives the measurement data from the newly assigned device.

Additional information