Summary of Contents for Messotron MNHmCON
- Page 1 Operating Instructions MNHµCON Signal Converter Operating instructions Eddy Current Signal Converter Model: MNHµCON Version 1.3p en_MNHµCON_operating instructions.docx Date of issue: 08/2022 Page 1 from 31...
- Page 2 Operating Instructions MNHµCON Signal Converter Table of contents 1 General ......................3 Warranty and liability ................3 Technical support and contact details ........... 3 2 Safety instructions ..................4 Intended use ..................4 Conditions at the installation site ............4 General hazards due to non-observance of the safety instructions ..
- Page 3 1.1 Warranty and liability Any warranty and liability claims against MESSOTRON are lost if • damage occurs which is due to non-observance of the operating instructions • modifications have been made that are not documented in these operating instructions.
- Page 4 Have the device checked by MESSOTRON before using it. Version 1.3p en_MNHµCON_operating instructions.docx...
- Page 5 Operating Instructions MNHµCON Signal Converter 3 Warnings and labels 3.1 Use of warnings The following hazard classes according to ANSI are used for warnings: Warning sign, signal word Meaning Indicates a hazardous situation in which DANGER death or serious bodily injury will occur if not avoided.
- Page 6 Operating Instructions MNHµCON Signal Converter 4 Product description 4.1 Terms and definitions Eddy current The eddy current measurement chain forms a measuring coordinated sensor unit consisting of proximity sensor, chain converter and connecting cable. Target The target is the object whose distance to the proximity sensor is to be measured.
- Page 7 The accuracy of eddy current-based distance measurements is particularly influenced by the following factors: Material properties and size of the measured object The characteristics of the MESSOTRON eddy current sensors generally apply to the following reference material: • 42CrMo4 • flat surface, at least 3 times the head diameter Suitable configuration sets for the converter are provided for the reference material.
- Page 8 4.3 Functionality The eddy current converter MNHµCON is preferably used in conjunction with the MESSOTRON high temperature proximity sensors MNH for non-contact distance measurement. Thanks to modern processor technology, it can be flexibly adapted to different sensor characteristics and target properties and thus also for operation with other eddy current sensors with the aid of the "MNHµCON...
- Page 9 Operating Instructions MNHµCON Signal Converter Figure 1 View of connection terminals and displays The MNHµCON is supplied in a cast aluminum housing for screw mounting on the substrate. The connection cable for the voltage supply and the output signal is led into the housing via a cable gland and connected there to a 5-pole terminal row.
- Page 10 Operating Instructions MNHµCON Signal Converter 4.6 Suitable sensors All MESSOTRON high temperature eddy current sensors of the MNH series are designed for operation with the eddy current converter MNHµCON. In some cases, a suitable connection adapter must be used. If you want to operate other eddy current sensors with the MNHµCON and have any questions, please contact us.
- Page 11 Operating Instructions MNHµCON Signal Converter Configuration options Button Software Change / adjust sensor characteristic curve Change threshold values Change measuring range Reduction of the temperature drift Change complete configuration set Save / load configuration set 5.1 Hardware 5.1.1 Signal outputs NOTE NOTE The signal outputs are galvanically decoupled from the supply voltage.
- Page 12 Operating Instructions MNHµCON Signal Converter connector on the converter side, see chapter 4.7. Accessories: MNH USB2RS232/3V3). 5.1.3 Sensor connection The eddy current sensor is connected by means of Lemo connectors. Lemo connector (sensor side): FFA.0E.650.CTAC30ZN 5.2 Commissioning without PC When commissioning without a PC, the MNHµCON Configurator software should not run in the background.
- Page 13 Operating Instructions MNHµCON Signal Converter Setting the threshold values: Status L1 (red) L2 (green) L3 (red) Action (lower limit) (within the limits) (upper limit) Programming cycle Normal on or off on or off on or off 1) Press the button for 1 second for the thresholds operation Setting the...
- Page 14 Operating Instructions MNHµCON Signal Converter • PC with USB interface • Windows XP or higher • 1 GHz processor or higher • min. 1 GB RAM • Drive with at least 25 MB free memory • Programming adapter MNH USB2RS232/3V3, see 4.7 Accessories 5.3.2 Software installation Start the installation package MNHµCON-Configurator.msi.
- Page 15 Operating Instructions MNHµCON Signal Converter Select the installation location. Start the installation with "Install". If this screen appears, then you have successfully completed installation. You can now connect the eddy current converter to the PC (see 5.1.2 Terminal assignment of the terminal strip).
- Page 16 You are in the user level. 5.3.4 Reading in a standard configuration set (user level) MESSOTRON offers ready-made configuration sets for many standard applications, with which all settings of the converter for operation can be made in one step.
- Page 17 Operating Instructions MNHµCON Signal Converter In the setting fields with a red background, you define the measuring range within the nominal measuring range of the eddy current measuring chain. You define the output voltage at the beginning or end of the configured measuring range with the setting fields highlighted in green.
- Page 18 MNHµCON Signal Converter The password for the configurator level is: "secret". For most standard applications, it is sufficient to configure the converter with the configuration sets provided by MESSOTRON. Nevertheless, an individual adjustment may be necessary if Version 1.3p en_MNHµCON_operating instructions.docx...
- Page 19 Operating Instructions MNHµCON Signal Converter • a larger nominal measuring range is to be defined • a different size and/or surface of the measuring object is present • the measured object has other material properties • the length of the connection cable is to be changed •...
- Page 20 Operating Instructions MNHµCON Signal Converter distance between the eddy current sensor and the measured object can be changed step by step. Move to the first measuring point on the measuring system. Enter the distance at "Value" and click "Set". This saves the value as the first base point of the sensor characteristic curve in the converter.
- Page 21 Operating Instructions MNHµCON Signal Converter In some applications, the passing or exceeding of certain thresholds is to be signaled separately. In the MNHµCON, you can define threshold values for this purpose. When these values are exceeded or not reached, the threshold value indicators (red LEDs inside the housing) light up.
- Page 22 Operating Instructions MNHµCON Signal Converter For the compensation of temperature influences during operation, a sufficiently accurate determination of the current sensor temperature is necessary. For this purpose, the sensor and converter must be adjusted to each other beforehand. Cable components that are subject to significant temperature fluctuations must also be taken into account.
- Page 23 MESSOTRON provides these values on request. However, you can also determine the values during an on-site calibration. Depending on the sensor type, a reduction of the temperature drift by a factor of 10 or more is thus possible.
- Page 24 Attempts at repair of any kind will result in the immediate loss of the warranty and liability claim. MESSOTRON electronics are designed for use in a harsh industrial environment. They are designed for many years of trouble-free operation. In case of any misbehavior or damage, please contact us by phone or email:...
- Page 25 • Only clean the housing with a soft, slightly damp cloth. • Carefully remove dry dirt on the boards with a vacuum cleaner or brush. • If liquid gets into the device, have the device checked by MESSOTRON before using it again.
- Page 26 Operating Instructions MNHµCON Signal Converter 8.3 Firmware update NOTE NOTE The installation of new firmware may only be performed by qualified personnel. Use the programming tool "Flash Loader Demonstrator" to perform a firmware update via the serial interface. The tool is available as a free download on the website of the processor manufacturer (STMicroelectronics).
- Page 27 Operating Instructions MNHµCON Signal Converter After that, select the target memory (flash memory of the processor) In the next step, select the file with the firmware. To ensure a defined behavior at the first start of the eddy current converter, you must reset the flash memory (also includes...
- Page 28 Operating Instructions MNHµCON Signal Converter Exit the programming tool after completing the programming with "Close". To start the eddy current converter with the new firmware, you must briefly interrupt the power supply. 9 Disposal The device, any accessories and packaging must be disposed of in accordance with the respective national guidelines.
- Page 29 Operating Instructions MNHµCON Signal Converter 10 EU Declaration of Conformity / CE Marking 10.1 Electronics with a supply voltage < 50 V Version 1.3p en_MNHµCON_operating instructions.docx Date of issue: 08/2022 Page 29 from 31...
- Page 30 Operating Instructions MNHµCON Signal Converter 11 Technical data General Supply voltage 24 VDC (19.2...30 VDC) Current consumption < 200 mA (typical 50 mA at 24 VDC) Nominal measuring range up to 50 mm (depending on the sensor used) Signal output 0...10 V or (0)4...20 mA Load / load resistance >10 kOhm / <500 Ohm...
- Page 31 Operating Instructions MNHµCON Signal Converter Changes and errors excepted. © 2022, MESSOTRON GmbH & Co KG MESSOTRON GmbH & Co KG Friedrich-Ebert-Str. 37 64342 Seeheim-Jugenheim Phone06257 999 730 06257 999 7309 Email: info@messotron.de Homepage: www.messotron.de Version 1.3p en_MNHµCON_operating instructions.docx Date of issue: 08/2022...
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