Maschinenfabrik Reinhausen MESSKO Operating Instructions Manual
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Maschinenfabrik Reinhausen MESSKO Operating Instructions Manual

Retrofit kit. pointer thermometer
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THE POWER BEHIND POWER.
Operating instructions
®
MESSKO
Retrofit Kit. Pointer thermometer
10584949/01 EN

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  • Page 1 THE POWER BEHIND POWER. Operating instructions ® MESSKO Retrofit Kit. Pointer thermometer 10584949/01 EN...
  • Page 2 © All rights reserved by Maschinenfabrik Reinhausen Dissemination and reproduction of this document and use and disclosure of its content are strictly prohibited unless expressly permitted. Infringements will result in liability for compensation. All rights reserved in the event of the granting of patents, utility models or designs.

  • Page 3: Table Of Contents

    Table of contents Introduction .............. 6 Manufacturer .................. 6 Completeness.................. 6 Safekeeping.....................  6 Notation conventions ................ 7 1.4.1 Hazard communication system ............ 7 1.4.2 Information system ................ 8 1.4.3 Instruction system..................  8 1.4.4 Typographic conventions .............. 9 Security ................  10 Appropriate use ..................
  • Page 4 Installation and commissioning ........ 27 Transporting in the installed state ............ 28 Checking measured temperature values ........... 28 Mounting the pointer thermometer ...........  29 5.3.1 Attaching the pointer thermometer to the transformer .... 29 5.3.2 Securing the capillary line .............. 31 5.3.3 Inserting the temperature sensor into the thermometer pocket .. 32 5.3.4 Changing the cover plate..............
  • Page 5 Drawings.............. 74 11.1 Cable gland dimensions............... 74 11.2 Dimensional drawing ................ 74 11.3 SED_10484069_000_00_4.PDF............ 75 Glossary ...............  76 10584949/01 EN Table of contents  5...

  • Page 6: Introduction

    This technical file contains detailed descriptions on the safe and proper in- stallation, connection, commissioning and monitoring of the product. This technical document is intended solely for specially trained and autho- rized personnel. 1.1 Manufacturer Maschinenfabrik Reinhausen GmbH Falkensteinstraße 8 93059 Regensburg Deutschland +49 941 4090-0 sales@reinhausen.com...

  • Page 7: Notation Conventions

    1.4 Notation conventions This section contains an overview of the symbols and textual emphasis used. 1.4.1 Hazard communication system Warnings in this technical file are displayed as follows. 1.4.1.1 Warning relating to section Warnings relating to sections refer to entire chapters or sections, sub-sec- tions or several paragraphs within this technical document.

  • Page 8: Information System

    1.4.1.3 Signal words Depending on the product, the following signal words are used: Signal word Meaning DANGER Indicates a hazardous situation which, if not avoided, will result in death or serious injury. WARNING Indicates a hazardous situation which, if not avoided, could result in death or serious injury.

  • Page 9: Typographic Conventions

    Multi-step instructions Instructions which consist of several process steps are structured as follows: Aim of action Requirements (optional). 1. Step 1. Result of step (optional). 2. Step 2. Result of step (optional). Result of action (optional). 1.4.4 Typographic conventions Typographic convention Purpose Example UPPERCASE...

  • Page 10: Security

    2 Security Read this technical file through carefully to familiarize yourself with the prod- uct. This technical file is a part of the product. – Read and observe the safety instructions provided in this chapter in partic- ular. – Observe the warnings in this technical file to avoid function-related dan- gers.

  • Page 11: Fundamental Safety Instructions

    – Only operate the product in industrial areas. – Observe the notices in this technical document regarding electromagnetic compatibility and the technical data. 2.2 Fundamental Safety Instructions To prevent accidents, disruptions and damage as well as unacceptable ad- verse effects on the environment, those responsible for transport, installa- tion, operation, maintenance and disposal of the product or parts of the product must ensure the following: Personal protective equipment...
  • Page 12 Only modify the product after consultation with Maschinenfabrik Rein- hausen GmbH. Spare parts Spare parts not approved by Maschinenfabrik Reinhausen GmbH may lead to physical injury, damage to the product and malfunctions. – Only use spare parts that have been approved by Maschinenfabrik Rein- hausen GmbH.

  • Page 13: Personnel Qualification

    Technical Service department. This ensures that all work is performed cor- rectly. If a repair is not carried out by our Technical Service department, please ensure that the personnel who carry out the maintenance are trained and authorized by Maschinenfabrik Reinhausen GmbH to carry out the work. 10584949/01 EN Security  13...
  • Page 14 Maschinenfabrik Reinhausen GmbH Technical Service Postfach 12 03 60 93025 Regensburg Germany +49 941 4090-0 service@reinhausen.com reinhausen.com 14  Security 10584949/01 EN...

  • Page 15: Personal Protective Equipment

    2.4 Personal protective equipment Personal protective equipment must be worn during work to minimize risks to health. – Always wear the personal protective equipment required for the job at hand. – Never wear damaged personal protective equipment. – Observe information about personal protective equipment provided in the work area.

  • Page 16: Product Description

    3 Product description 3.1 Scope of delivery The product is packaged with protection against moisture and is delivered as follows: – Pointer thermometer with temperature sensor – Multifunctional mounting plate – Installation kit for mounting plate – Set of various adapter sleeves –...

  • Page 17: Design

    The sensor of the pointer thermometer is located in the thermometer pocket mounted in the transformer tank. The measured value is displayed directly on the pointer thermometer or, as an option, on an analog or digital display using a signal converter. The Retrofit Kit is for replacing older pointer thermometers.

  • Page 18: Pointer Thermometer With 3/4" 14Npt Adapters

    5 Label with serial number 6 Capillary line 7 NPT adapter 8 ANSI plug 9 Cover plate 10 Mounting plate 11 Adjustment screw 12 Drag hand reset button 13 Pointer 14 Bayonet seal ring 15 Micro-switches 16 Drag hands 1) optional, only type TT 2) The pointer thermometer is calibrated at the factory.

  • Page 19: Ventilation

    3.3.3 Ventilation The pointer thermometer features ventilation to prevent the formation of condensate. Figure 3: Ventilation 3.4 Device versions The pointer thermometer is available in 2 device versions. Both versions are available with plug connection or with four 3/4” 14NPT adapters. MT-ST160R This pointer thermometer is equipped with four adjustable micro-switches as standard.
  • Page 20 Device versions overview Figure 4: Device versions overview MT-ST160R Version without analog output with screw terminals MT-ST160R/TT Version with analog output with push-in terminals Use for oil temperature – Use the cover plate for displaying the oil temperature. – The temperature displayed is that of the oil temperature at the tempera- ture sensor of the pointer thermometer.

  • Page 21: Safety Markings

    3.5 Safety markings Figure 5: MT-ST retrofit safety markings 1 Observe the documentation 2 Protective conductor connection Additional safety marking for the version with plug connection Figure 6: Additional safety marking for plug connection 1 Protective conductor connection 10584949/01 EN Product description  21...

  • Page 22: Nameplate

    3.6 Nameplate Figure 7: Nameplate 22  Product description 10584949/01 EN...

  • Page 23: Packaging, Transport And Storage

    4 Packaging, transport and storage 4.1 Purpose The packaging is designed to protect the packaged product during transport, loading, unloading and during periods of storage in such a way that no detri- mental changes occur. The packaging must protect the goods against per- mitted transport stresses such as vibration, knocks and moisture (rain, snow, condensation).

  • Page 24: Markings

    4.3 Markings The packaging bears a signature with instructions for safe transport and cor- rect storage. The following symbols apply to the shipment of non-hazardous goods. Adherence to these symbols is mandatory. Protect against Fragile Attach lifting Center of mass moisture gear here Table 4: Shipping pictograms...
  • Page 25 Visible damage If external transport damage is found upon receipt of the shipment, proceed as follows: – Immediately record the transport damage found in the shipping docu- ments and have this countersigned by the carrier. – In the event of severe damage, total loss or high damage costs, immedi- ately notify the manufacturer's sales department and the relevant insur- ance company.

  • Page 26: Storage Of Shipments

    4.5 Storage of shipments When selecting and setting up the storage location, ensure the following: – Store the product and accessories in the original packaging until installa- tion. – Protect stored goods against moisture (rain, flooding, water from melting snow and ice), dirt, pests such as rats, mice, termites etc. and against unauthorized access.

  • Page 27: Installation And Commissioning

    5 Installation and commissioning This chapter describes how to mount and connect the device correctly. Ob- serve the following hazard notices prior to opening the device: DANGER Electric shock! Risk of fatal injury due to electrical voltage. Always observe the following safety regulations when working in or on electrical equipment.

  • Page 28: Transporting In The Installed State

    The pointer thermometer is cali- brated at the factory. Only perform a reference measurement in moving liquid baths. We recom- mend using the Messko® MZT1650S calibration bath. The temperature of the liquid bath must remain constant for 15 minutes. 28  Installation and commissioning 10584949/01 EN...

  • Page 29: Mounting The Pointer Thermometer

    If the measured temperature values deviate from each other significantly (maximum permitted deviation ±3 °C), contact the service department of Maschinenfabrik Reinhausen GmbH [►Section 2.3, Page 13]. 5.3 Mounting the pointer thermometer 5.3.1 Attaching the pointer thermometer to the transformer...
  • Page 30 – Ensure that the pointer thermometer is not subjected to any vibrations at the installation location. – Comply with EMC standards [►Section 5.4.1.1, Page 40]. – Observe the dimensions in the chapter "Drawings" [►Section 11, Page 74]. You can use the following screws to attach the pointer thermometer: –...

  • Page 31: Securing The Capillary Line

    2. Attach the pointer thermometer with mounting plate on the bracket. Figure 10: Attaching the pointer thermometer 5.3.2 Securing the capillary line When securing the capillary line, note the following information: NOTICE Damage to the device! A capillary line bending radius that is too narrow or damage to the capillary line can lead to a loss of device function.

  • Page 32: Inserting The Temperature Sensor Into The Thermometer Pocket

    Proceed as follows: 1. Route the capillary line to the transformer and secure it with cable ties. 2. Wind up any excess capillary line with a minimum winding diameter of 80 mm (3.15″). 5.3.3 Inserting the temperature sensor into the thermometer pocket By using the included adapter sleeves, the sensor diameter can be adjusted to the inner diameter of the thermometer pocket.
  • Page 33 2. Insert the temperature sensor into the adapter sleeve up to the stop. Figure 12: Inserting the temperature sensor into the adapter sleeve 10584949/01 EN Installation and commissioning  33...
  • Page 34 3. Insert the temperature sensor with adapter sleeve into the thermometer pocket up to the stop and secure via the fixing screw. Figure 13: Inserting the temperature sensor with adapter sleeve 34  Installation and commissioning 10584949/01 EN...
  • Page 35 4. Tighten the temperature sensor via the pressure screw so that it cannot slip back out of the thermometer pocket. NOTICE!  If the temperature sensor is angled after installation, it can be damaged. The bend radius must not be less than 50 mm. Figure 14: Attaching the temperature sensor 10584949/01 EN Installation and commissioning  35...

  • Page 36: Changing The Cover Plate

    5.3.4 Changing the cover plate You can change the cover plate so that the print on the cover corresponds to the displayed temperature – the oil temperature or winding temperature. 1. Loosen the screws. Figure 15: Loosening the screws 36  Installation and commissioning 10584949/01 EN...
  • Page 37 2. Change the cover plate. Figure 16: Changing the cover plate 10584949/01 EN Installation and commissioning  37...

  • Page 38: Electrical Connection

    3. Secure the screws. Figure 17: Securing the screws 5.4 Electrical connection DANGER Electric shock! Danger of death due to electrical voltage when assembling/dis- assembling the device. Switch off transformer on high-voltage side and low-voltage side. Lock transformer to prevent unintentional restart. Make sure that everything is de-energized.

  • Page 39: Preparation

    DANGER Electric shock Risk of fatal injury due to lack of protective conductor connec- tion. Always connect the protective conductor connection before connecting any potentially dangerous circuits. WARNING Electric shock! Too small bending radii could damage the insulation of cables or cores.
  • Page 40 5.4.1.1 Electromagnetic compatibility The device has been developed in accordance with the applicable EMC stan- dards. The following points must be noted in order to maintain the EMC stan- dards. 5.4.1.1.1 Wiring requirement of installation site Note the following when selecting the installation site: –...
  • Page 41 Miniature circuit breaker You must protect the mains circuits for the main switching contacts with a 6 A miniature circuit breaker with triggering characteristic C. Conductor cross-section For all mains circuits, you must use a conductor cross-section that is appro- priate for the miniature circuit breaker you have selected. 5.4.1.3 Cable recommendation Please note the following recommendation from the manufacturer when wiring the device:...

  • Page 42: Removing The Bayonet Seal Ring

    Cable Terminals Cross section PE protective conductor ≥ all other conductors connection Micro-switches 12, 11, 14; 1.5...2.5 mm /16...12 AWG 22, 21, 24; 32, 31, 34; 42, 41, 44 Analog output (+), (-) 1.5...2.5 mm /16...12 AWG Table 5: Recommendation for connection cable (standard connections) 5.4.2 Removing the bayonet seal ring Before connecting, setting or testing the pointer thermometer, the bayonet seal ring must be removed.

  • Page 43: Removing The Cover Plate

    Lift off the bayonet seal ring along with the viewing glass and rubber gas- ket and place them safely on a clean, even storage surface. 5.4.3 Removing the cover plate 1. Loosen the screws. Figure 19: Loosening the screws 10584949/01 EN Installation and commissioning  43...
  • Page 44 2. Remove the cover plate. Figure 20: Removing the cover plate 44  Installation and commissioning 10584949/01 EN...

  • Page 45: Connections - Ms-St160R(/Tt) With Ansi Plug

    5.4.4 Connections – MS-ST160R(/TT) with ANSI plug 1. Note cable recommendation. 2. Route the connection cables without tension and attach them so that nei- ther the device nor the cable gland is subjected to mechanical stress. Connecting the protective conductor DANGER Electric shock Risk of fatal injury due to lack of protective conductor connec-...
  • Page 46 Connecting the micro-switches using the ANSI plug Devices with a plug connection may be connected via the de- vice plug to either only extra-low-voltage circuits or only low- voltage circuits. To connect the micro-switches, proceed as follows: NOTICE!  Damage to cables and conductors! When installing the ANSI plug connector on the ANSI plug, the cable can twist.
  • Page 47 3. Connect the wires at the free end of the connection cable in the control cabinet in accordance with the supplied connection diagram. 1 Black 2 Red 3 Blue 4 Orange 5 Yellow 6 Brown 7 Red/black 8 Blue/black 9 Orange/black Connecting the passive 4…20 mA analog output (type TT) 1.
  • Page 48 6. Route the cable into the device through the 1/2” 14NPT adapter and attach to the terminal “4…20 mA (+/–)”. Figure 23: Analog output connection, plug version 7. Screw a cable conduit or cable tube with an external thread of 1/2″ 14NPT into the adapter correctly and tightly.

  • Page 49: Connections - Ms-St160R With 3/4" 14Npt Adapters

    5.4.5 Connections – MS-ST160R with 3/4” 14NPT adapters 1. Note cable recommendation. 2. Route the connection cables without tension and attach them so that nei- ther the device nor the cable gland is subjected to mechanical stress. 3. Remove the locking caps on the 3/4” 14NPT adapters. 4.
  • Page 50 1. Equip the protective conductor (PE) with a forked cable shoe or ferrule and secure it to the protective conductor screw of the pointer thermometer. Figure 25: Protective conductor connection Preparing the micro-switch cables 1. Strip the cable to a suitable length. 2.
  • Page 51 Connecting the micro-switches 1. Connect the wires to the terminal strip in accordance with the connection diagram. Figure 26: Screw terminals and connection diagram 1 Connection diagram 2 Terminal strip Closing off open NPT adapters NOTICE Damage to the device! The supplied locking screws are intended to protect the device from mois- ture and the like during transport.
  • Page 52 Metal locking screws are available as accessories: – Brass locking screw: material no. MS960750 – Stainless steel locking screw: material no. 781711. 52  Installation and commissioning 10584949/01 EN...

  • Page 53: Connections - Mt-St160R/Tt With 3/4" 14Npt Adapters

    5.4.6 Connections – MT-ST160R/TT with 3/4” 14NPT adapters 1. Note cable recommendation. 2. Route the connection cables without tension and attach them so that nei- ther the device nor the cable gland is subjected to mechanical stress. 3. Remove the locking caps on the 3/4” 14NPT adapters. 4.
  • Page 54 1. Equip the protective conductor (PE) with a forked cable shoe and secure it to the protective conductor screw of the pointer thermometer. Figure 28: Protective conductor connection for type TT Preparing the micro-switch cables 1. Strip the cable to a suitable length. 2.
  • Page 55 3. Remove the actuator tool. Figure 29: Push-in terminals and connection diagram 1 Connection diagram 2 Terminal strip Preparing the cable for the passive 4…20 mA analog output 1. Strip the cable to a suitable length. 2. Strip a length of 8 mm (0.32”) of insulation from the wires. 3.
  • Page 56 3. Remove the actuator tool. Figure 30: Analog output connection 4. On the other cable end, connect an evaluation unit with driving output (18...30 VDC) or, if necessary, an additional power supply (24 VDC). Closing off open NPT adapters NOTICE Damage to the device! The supplied locking screws are intended to protect the device from mois- ture and the like during transport.

  • Page 57: Checking Micro-Switches

    Metal locking screws are available as accessories: – Brass locking screw: material no. MS960750 – Stainless steel locking screw: material no. 781711. 5.5 Checking micro-switches NOTICE Damage to the device! If you move the micro-switches on the colored indicator points, they can bend or break.

  • Page 58: Micro-Switch To The Right Of The Pointer

    5.5.1 Micro-switch to the right of the pointer If the micro-switch is to the right of the pointer, proceed as follows: NOTICE!  Damage to the device! If the pointer jumps back to the starting position, the micro-switches can be damaged. Turn the pointer clockwise past the micro-switches by hand and do not let go.
  • Page 59 2. Slowly return the pointer to its starting position. Figure 32: Returning the micro-switches A return spring pulls the pointer back to its exact starting position. 10584949/01 EN Installation and commissioning  59...

  • Page 60: Micro-Switch To The Left Of The Pointer

    5.5.2 Micro-switch to the left of the pointer If the micro-switch is to the left of the pointer, proceed as follows: 1. Move the micro-switches clockwise past the pointer individually and in suc- cession and check the function. If necessary, connect a continuity tester to the terminal strip to do so.

  • Page 61: Closing The Cover Plate

    5.6 Closing the cover plate 1. Close the cover plate. Figure 34: Closing the cover plate 10584949/01 EN Installation and commissioning  61...

  • Page 62: Positioning The Bayonet Seal Ring

    5.7 Positioning the bayonet seal ring Ensure that the drag hand is positioned to the right of the pointer. Figure 35: Position of the drag hand 1. Reposition the bayonet seal ring with viewing glass on the pointer ther- mometer, press down firmly and turn 30...40° clockwise so that the view- ing glass is pressed firmly into the rubber gasket all the way around.

  • Page 63: Operation

    6 Operation 6.1 Resetting drag hands The drag hand slides along with the pointer when measured temperature val- ues increase and marks its maximum value. You can reset the drag hand as follows: 1. Return the drag hand to the position of the thermometer pointer manually using the drag hand reset.

  • Page 64: Maintenance, Inspection And Care

    2. Ensure that the ventilation is free of dirt and deposits. 3. Check the device for external damage and contamination. In the event of questions or irregularities, contact the Technical Service de- partment: Maschinenfabrik Reinhausen GmbH MR Service & Complaint Falkensteinstrasse 8 93059 Regensburg...

  • Page 65: Fault Elimination

    Questionnaire for preparation 1. Has there previously been a problem with this device? 2. Have you previously contacted Maschinenfabrik Reinhausen GmbH about this issue? If yes, then who was the contact? 3. When did the error first occur? Is there a correlation with events such as...

  • Page 66: General Malfunctions (Type Tt)

    Checking the plausibility of the measured values If the device is working but not reporting plausible values, check, document and compare the following: – Measured value via 4...20 mA analog output – Measured value via pointer on the scale – Actual physical measured value (measured or estimated). Calculating the target current of the 4…20 mA analog output = 4 mA + 16 mA * [(current measured value scale - scale ) / (scale...

  • Page 67: Ma Analog Signal Malfunctions (Type Tt)

    8.2 4…20 mA analog signal malfunctions (type TT) Characteristics/de- Cause Remedy tails Loop current is ap- – Device signals detected error – At 3 mA: The self-diagnosis prox. 3 mA has detected an error that does not allow a reliable indi- cation of the measurement. The receiver does –...

  • Page 68: Disposal

    9 Disposal Observe the national disposal regulations in the country of use. 9.1 SVHC information in accordance with the REACH regulation This product complies with the provisions of European Regulation 1907/2006/EC dated December 18, 2006 on the Registration, Evaluation, Au- thorization and Restriction of Chemicals (REACH). The following components of the product contain >...

  • Page 69: Technical Data

    10 Technical data 10.1 Ambient conditions Permissible ambient conditions Location of use Indoors and outdoors, tropic-proof Operating temperature -40…+80 °C Storage temperature -50…+80 °C Ambient air temperature -50…+80 °C Relative humidity Fog-free up to 80% Installation altitude 2,000 m above mean sea level Degree of protection IP55 in accordance with IEC 60529 Protection class Overvoltage category...

  • Page 70: Micro-Switches

    Basic materials Front ring and housing Sheet steel, galvanized, coated in RAL 7038 (similar to ANSI 70 light gray); corrosion protection class C4H in accordance with DIN EN ISO 12944-9 Inspection window Laminated safety glass with UV filter Temperature sensor Stainless steel 316L Mounting plate Aluminum, coated RAL 7038 (similar to ANSI 70 light gray) Capillary line...
  • Page 71 Micro-switch technical data Rated insulation voltage in accordance 2,500 VAC/1 min; terminals to ground with IEC 60076-22-1 1,000 VAC/1 min; between open terminals Lightning impulse withstand voltage in ac- 4,000 V; terminals to ground cordance with IEC 60076-22-1 3,000 V; between open contacts Contact material Standard: silver alloy Optional: gold-plated contacts Contact type Change-over contact, normally open con-...
  • Page 72 Switching capacity in accordance IEC 60076-22-1 Micro-switch version Switching capacity in accordance IEC 60076-22-1 Standard switch 230 V AC Making capacity: 250 VA, cos φ > 0.5 Breaking capacity: 60 VA, cos φ > 0.5 24…220 VDC Making capacity: 130 W, L/R < 40 ms Breaking capacity: 25 W, L/R < 40 ms Switch with gold-plated con- 230 V AC Max. 6.9 VA, cos φ = 0.9 tacts 24…220 VDC Max. 6.6 W, L/R < 25 ms...
  • Page 73 Green Yello Blue min. 6%* min. 6%* <1 K * from the measuring range Figure 39: Switch arrangement 3+4 tight <1 K Blue Green Yello <1 K min. 12%* <1 K * from the measuring range Figure 40: Switch arrangement 1+2 and 3+4 tight <1 K 10584949/01 EN Technical data  73...
  • Page 74 11 Drawings The product may have been altered since this document was published. 11.1 Cable gland dimensions NPT adapters (optional) Figure 41: NPT adapters 1/2" NPT 3/4" NPT 11.2 Dimensional drawing 74  Drawings 10584949/01 EN...
  • Page 76 Glossary Ambient air temperature Operating temperature Permissible temperature of the air in Permissible temperature in the im- the surroundings of the equipment mediate surroundings of the device in operation on which the device is during operation taking ambient in- installed. fluences, for example due to the equipment and installation location, into consideration.
  • Page 78 The data in our publications may differ from the data of the devices delivered. We reserve the right to make changes without notice. ® 10584949/01 EN - MESSKO Retrofit Kit Operating instructions - F0419801 - 02/24 THE POWER BEHIND POWER.

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