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GHM-Martens MU125 Operating Manual

Temperature measuring transducer
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Operating manual
Temperature measuring
transducer
MU125
www.ghm-messtechnik.de
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Summary of Contents for GHM-Martens MU125

  • Page 1 English Operating manual Temperature measuring transducer MU125 Company / brands of GHM www.ghm-messtechnik.de Save for later reference.

  • Page 2: Table Of Contents

    GHM Messtechnik GmbH – Standort Martens Kiebitzhörn 18 ● 22885 Barsbüttel ● Germany Phone +49-40-670 73-0 ● Fax -288 www.ghm-messtechnik.de ● info@martens-elektronik.de Table of contents Page Intended use (areas of application) ..............3 Safety signs and symbols ................ 3 Safety instructions ..................4 Product liability and warranty ..............

  • Page 3: Intended Use (Areas Of Application)

    GHM Messtechnik GmbH – Standort Martens Kiebitzhörn 18 ● 22885 Barsbüttel ● Germany Phone +49-40-670 73-0 ● Fax -288 www.ghm-messtechnik.de ● info@martens-elektronik.de Intended use (areas of application) Refer to the chapter 'Product description' for detailed specifications for the area of application. The operational safety of the device is only assured when used as intended in accordance with the specifications in the operating manual.

  • Page 4: Safety Instructions

    GHM Messtechnik GmbH – Standort Martens Kiebitzhörn 18 ● 22885 Barsbüttel ● Germany Phone +49-40-670 73-0 ● Fax -288 www.ghm-messtechnik.de ● info@martens-elektronik.de Safety instructions Read the product description before commissioning the device. Ensure that there are no limitations for use of the product for the relevant applications. The owner is responsible for ensuring the fault-free operation of the device.

  • Page 5: Product Description

    Phone +49-40-670 73-0 ● Fax -288 www.ghm-messtechnik.de ● info@martens-elektronik.de 2. Product description Temperature measuring transducers of the series MU125 convert a temperature measurement value or resistance measurement value from various sensors to a current signal of 4..20mA. The universal configurability of the measuring inputs reduces the stock requirement for various applications.

  • Page 6: Functional Principle

    GHM Messtechnik GmbH – Standort Martens Kiebitzhörn 18 ● 22885 Barsbüttel ● Germany Phone +49-40-670 73-0 ● Fax -288 www.ghm-messtechnik.de ● info@martens-elektronik.de 2.2. Functional principle An analog output value with 4..20 mA is actuated depending on the selected measuring range. The temperature measuring ranges are linearised.

  • Page 7: Powerrail

    GHM Messtechnik GmbH – Standort Martens Kiebitzhörn 18 ● 22885 Barsbüttel ● Germany Phone +49-40-670 73-0 ● Fax -288 www.ghm-messtechnik.de ● info@martens-elektronik.de 2.4. PowerRail The supply of multiple devices can be combined and simplified via a bus system in the carrier rail (TS35). A corresponding version is available for the entire LP series of GHM carrier rail devices in a housing with 12.5 mm width.

  • Page 8: Type Plate

    GHM Messtechnik GmbH – Standort Martens Kiebitzhörn 18 ● 22885 Barsbüttel ● Germany Phone +49-40-670 73-0 ● Fax -288 www.ghm-messtechnik.de ● info@martens-elektronik.de 2.5. Type plate The type plate provides the most important identification data ● Type and article designation ● Technical data ●...

  • Page 9: Assembly And Installation

    GHM Messtechnik GmbH – Standort Martens Kiebitzhörn 18 ● 22885 Barsbüttel ● Germany Phone +49-40-670 73-0 ● Fax -288 www.ghm-messtechnik.de ● info@martens-elektronik.de 3. Assembly and installation 3.1. Mechanical assembly Fig. 4 Carrier rail mounting TS35, DIN EN 60715 The gapless installation of multiple devices is only possible with a horizontally installed carrier rail.

  • Page 10: Functional Description

    GHM Messtechnik GmbH – Standort Martens Kiebitzhörn 18 ● 22885 Barsbüttel ● Germany Phone +49-40-670 73-0 ● Fax -288 www.ghm-messtechnik.de ● info@martens-elektronik.de 4. Functional description Controls Operation LED states Green continuous light: Normal operation. Red slow blinking (one-second frequency): Errors at the measuring inputs In service mode Red continuous light: The trim potentiometer is positioned at the factory...
  • Page 11 GHM Messtechnik GmbH – Standort Martens Kiebitzhörn 18 ● 22885 Barsbüttel ● Germany Phone +49-40-670 73-0 ● Fax -288 www.ghm-messtechnik.de ● info@martens-elektronik.de The measuring range is selected with the DIP switches: Pt100, Pt1000, thermocouple (type J, type K, type S) , NTC and linear resistance.

  • Page 12: Service Mode

    GHM Messtechnik GmbH – Standort Martens Kiebitzhörn 18 ● 22885 Barsbüttel ● Germany Phone +49-40-670 73-0 ● Fax -288 www.ghm-messtechnik.de ● info@martens-elektronik.de There is also a service mode for the trim potentiometer offering the following possibilities: a) A check of whether potentiometers are positioned at the calibrated factory settings b) The pre-adjustment of a new output characteristic curve with connection of a current measuring device.

  • Page 13: Output Characteristic Curve Specification

    GHM Messtechnik GmbH – Standort Martens Kiebitzhörn 18 ● 22885 Barsbüttel ● Germany Phone +49-40-670 73-0 ● Fax -288 www.ghm-messtechnik.de ● info@martens-elektronik.de 4.22 Output characteristic curve specification Settings for a deviating measuring range can be made without using a temperature calibrator For this purpose, the respective trim potentiometer is coupled directly to the analog output and generates a current proportional to the setting.
  • Page 14 GHM Messtechnik GmbH – Standort Martens Kiebitzhörn 18 ● 22885 Barsbüttel ● Germany Phone +49-40-670 73-0 ● Fax -288 www.ghm-messtechnik.de ● info@martens-elektronik.de Change of the measuring range start value The start value can be changed by +/-40% based on the factory measuring range (= factor end value - factor start value).

  • Page 15: Current Simulation

    GHM Messtechnik GmbH – Standort Martens Kiebitzhörn 18 ● 22885 Barsbüttel ● Germany Phone +49-40-670 73-0 ● Fax -288 www.ghm-messtechnik.de ● info@martens-elektronik.de 2) A measuring range of 0..100°C should be changed to -25..60°C. For this purpose, the measuring range end value must be reduced by 40%. (1 - 60°C / 100°C = 0.4 = 40%) Based on the value range table on page 13, the output current must be reduced (in service mode) by 6.4mA for a reduction of the end value by 40%.

  • Page 16: Commissioning, Maintenance And Service

    GHM Messtechnik GmbH – Standort Martens Kiebitzhörn 18 ● 22885 Barsbüttel ● Germany Phone +49-40-670 73-0 ● Fax -288 www.ghm-messtechnik.de ● info@martens-elektronik.de Commissioning, maintenance and service 5.1 Commissioning 1. Ensure that the connections have been made as indicated in the connection diagram and the supply voltage is correct.

  • Page 17: Technical Data

    GHM Messtechnik GmbH – Standort Martens Kiebitzhörn 18 ● 22885 Barsbüttel ● Germany Phone +49-40-670 73-0 ● Fax -288 www.ghm-messtechnik.de ● info@martens-elektronik.de Technical data Wide-range power supply Supply voltage : 20..125VDC and 20..250VAC (47..63Hz), max.1.5W 24V power supply Supply voltage : 24V DC +/-15%, max.
  • Page 18 GHM Messtechnik GmbH – Standort Martens Kiebitzhörn 18 ● 22885 Barsbüttel ● Germany Phone +49-40-670 73-0 ● Fax -288 www.ghm-messtechnik.de ● info@martens-elektronik.de Analogue output : 4..20mA, max. burden 400Ω, No galvanic isolation from the input signal (max. burden error of 0.2% at 400Ohm) Measuring Basic Temperature...

  • Page 19: Mechanical Design / Dimensions

    GHM Messtechnik GmbH – Standort Martens Kiebitzhörn 18 ● 22885 Barsbüttel ● Germany Phone +49-40-670 73-0 ● Fax -288 www.ghm-messtechnik.de ● info@martens-elektronik.de Casing Dimensions (WxDxH) 12.5 x 114 x 108 mm Material PA6.6, light grey, Flammability class V0 (UL94) Weight 120 g Protection rating IP20...

  • Page 20: Order Code

    GHM Messtechnik GmbH – Standort Martens Kiebitzhörn 18 ● 22885 Barsbüttel ● Germany Phone +49-40-670 73-0 ● Fax -288 www.ghm-messtechnik.de ● info@martens-elektronik.de Order code Device version 125L Supply voltage 24V DC +/- 15% 125LP Supply voltage:24V DC +/- 15% with carrier rail bus connection *) 125M Wide-range power supply...

  • Page 21: Return To Manufacturer

    GHM Messtechnik GmbH – Standort Martens Kiebitzhörn 18 ● 22885 Barsbüttel ● Germany Phone +49-40-670 73-0 ● Fax -288 www.ghm-messtechnik.de ● info@martens-elektronik.de Return to manufacturer The legal regulations for environmental protection and our personnel require that devices which are sent back which have come into contact with liquid are handled without risk to people or the environment.

  • Page 22: Certificate Of Conformity

    GHM Messtechnik GmbH – Standort Martens Kiebitzhörn 18 ● 22885 Barsbüttel ● Germany Phone +49-40-670 73-0 ● Fax -288 www.ghm-messtechnik.de ● info@martens-elektronik.de 12. Certificate of Conformity...
  • Page 23 GHM Messtechnik GmbH – Standort Martens Kiebitzhörn 18 ● 22885 Barsbüttel ● Germany Phone +49-40-670 73-0 ● Fax -288 www.ghm-messtechnik.de ● info@martens-elektronik.de...
  • Page 24 GHM Messtechnik GmbH – Standort Martens Kiebitzhörn 18 ● 22885 Barsbüttel ● Germany Phone +49-40-670 73-0 ● Fax -288 www.ghm-messtechnik.de ● info@martens-elektronik.de V 01.00.03...

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