MR MESSKO COMPACT Operating Instructions Manual
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MR MESSKO COMPACT Operating Instructions Manual

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Pointer thermometer
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MESSKO
COMPACT
Operating instructions
5831400/02 EN

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  • Page 1 Pointer thermometer ® MESSKO COMPACT Operating instructions 5831400/02 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. The product may have been altered since this document was published.

  • Page 3: Table Of Contents

    Table of contents Introduction................ 7 Manufacturer.................. 7 Completeness..................  7 Safekeeping.................. 7 Notation conventions ...............  7 1.4.1 Hazard communication system .............. 7 1.4.2 Information system.................. 8 1.4.3 Instruction system .................. 9 1.4.4 Typographic conventions ................ 9 Security ................ 11 Appropriate use ................ 11 Fundamental Safety Instructions ...........
  • Page 4 Table of contents Packaging, transport and storage ........ 28 Purpose .................. 28 Suitability, structure and production.......... 28 Markings .................. 28 Transportation, receipt and handling of shipments...... 28 Storage of shipments.............. 30 Further transport ................ 30 Installation and commissioning........ 31 Transporting in the installed state.......... 32 Checking measured temperature values ........
  • Page 5 Table of contents Setting temperature gradients (winding temperature) .... 78 6.6.1 Gradient setting by heating current (W) .............  79 6.6.2 Gradient setting by resistance value (WR).......... 83 Connecting the current transformer (winding temperature) ...  87 Configuring Modbus (type TTM) ............  89 Closing the cover plate ..............
  • Page 6 Table of contents 12.3 Temperature sensor .............. 111 12.4 Step protection................ 112 12.5 Vibration-damping plate/Mounting plate ........ 113 12.6 Cable gland dimensions ..............  114 Glossary ................ 118 5831400/02 EN...

  • Page 7: Introduction

    Germany Tel.: +49 941 4090-0 E-mail: sales@reinhausen.com Internet: www.reinhausen.com MR Reinhausen customer portal: https://portal.reinhausen.com Further information on the product and copies of this technical file are avail- able from this address if required. 1.2 Completeness This technical file is incomplete without the supporting documents: ▪...

  • Page 8: Information System

    1 Introduction 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. Warnings relat- ing to sections have the following format: WARNING Type of danger! Source of the danger and its consequences. ►...

  • Page 9: Instruction System

    1 Introduction Important information. 1.4.3 Instruction system This technical file contains single-step and multi-step instructions. Single-step instructions Instructions which consist of only a single process step are structured as fol- lows: Aim of action ü Requirements (optional). ► Step 1 of 1. ð...
  • Page 10 1 Introduction Typographic convention Purpose Example …>…>… Menu paths Parameter > Control pa- rameter Italics System messages, error Function monitoring alarm messages, signals triggered [► Number of pages] Cross reference [► Page 41]. Glossary entry, abbrevia- Dotted underscore Glossary entry ..............

  • Page 11: 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 12: Fundamental Safety Instructions

    2 Security 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 prod- uct must ensure the following: Personal protective equipment Loosely worn or unsuitable clothing increases the danger of becoming...
  • Page 13 2 Security Explosion protection Highly flammable or explosive gases, vapors and dusts can cause serious explosions and fire. ▪ Do not install or operate the product in areas where a risk of explosion is present. Safety markings Warning signs and safety information plates are safety markings on the product.
  • Page 14 2 Security Working during operation You must only operate the product when it is in a sound operational condi- tion. Otherwise it poses a danger to life and limb. ▪ Regularly check the operational reliability of safety equipment. ▪ Perform the inspection tasks described in this technical document regu- larly.
  • Page 15 2 Security 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: Security

    3 IT security Observe the following recommendations to operate the product safely: ▪ Ensure that only authorized personnel have access to the device. ▪ Ensure that the device is only operated by trained personnel who are fa- miliar with IT security. ▪...

  • Page 17: Product Description

    4 Product description 4.1 Scope of delivery The product is packaged with protection against moisture and is delivered as follows: ▪ Pointer thermometer with temperature sensor ▪ Technical documents Optional: ▪ Passive 4...20 mA analog output ▪ Active 4…20 mA analog output and Modbus RTU interface ▪...
  • Page 18 4 Product description Depending on the device version, you can use the following interfaces for transmitting measured values: ▪ Type TT: Passive 4...20 mA analog output ▪ Type TTM (24 VDC power supply necessary): – Active 4...20 mA analog output – RS485 interface for Modbus RTU In addition, the contacts of the micro-switches switch when threshold values are exceeded.

  • Page 19: Design

    4 Product description 4.3 Design 4.3.1 Compact Standard overview Depending on your order, the pointer thermometer features cable glands or NPT adapters. Figure 2: Pointer thermometer 1 Temperature sensor 2 Capillary line 3 Cable glands/adapters 4 Vibration-damping plate 5 Bayonet seal ring, glass pane and 6 Cover plate gasket 7 Calibration screw...

  • Page 20: Overview Compact Rm

    4 Product description 4.3.2 Overview Compact RM Depending on your order, the pointer thermometer features an ANSI or M connector, cable glands or NPT adapters. Figure 3: Pointer thermometer 1 Temperature sensor 2 Capillary line 3 Adapter 4 Connector plug 5 Cover plate 6 Mounting plate 7 Calibration screw 8 Drag hand reset button...

  • Page 21: Cable Glands/Adapters

    4 Product description 4.3.3 Cable glands/adapters Figure 4: Cable glands 1 Standard cable gland 2 WADI cable gland 3 1/2″ 14NPT adapter 4 3/4″ 14NPT adapter 5 EMC double cable gland, available as an accessory: material no. 10173481 5831400/02 EN...

  • Page 22: Ventilation

    4 Product description 4.3.4 Ventilation The pointer thermometer features ventilation to prevent the formation of con- densate. Figure 5: Ventilation 4.3.5 Overview Compact temperature sensor Figure 6: Temperature sensor 1 Step protection (optional) * 2 Small screw connection on tem- perature sensor 3 Large screw connection on tem- 4 Temperature sensor perature sensor *...

  • Page 23: Device Versions

    4 Product description 4.4 Device versions These operating instructions apply to the device versions of the MESSKO® Compact pointer thermometer illustrated in the following over- view. These device versions are available both for the MESSKO® Compact Standard version (with cable glands) and for the MESSKO® Compact RM version (with plug connection).
  • Page 24 4 Product description Figure 7: Device versions overview Oil temperature indicator ▪ Display of the oil temperature. ▪ Pointer thermometer with adjustable micro-switches. ▪ The displayed temperature corresponds to the oil temperature at the tem- perature sensor of the pointer thermometer. ▪...
  • Page 25 4 Product description ▪ The displayed temperature corresponds to the winding temperature based on the oil temperature, secondary transformer current and the tempera- ture difference. ▪ The secondary transformer current supplies a heating resistor in the me- chanical pointer thermometer with power, thus causing a temperature in- crease that corresponds to the loading of the transformer, as compared to the actual oil temperature that was measured.

  • Page 26: Safety Markings

    4 Product description 4.5 Safety markings Figure 8: Safety markings 1 Observe the documentation 2 Caution: Risk of burns (on the winding temperature indi- cator) 3 Protective conductor connection [►Section 6.4.5.1, Page 59] 5831400/02 EN...

  • Page 27: Nameplate

    4 Product description Additional safety marking for the Compact RM Figure 9: Additional safety marking for the Compact RM 1 Protective conductor connection [►Section 6.4.5.3, Page 60] 4.6 Nameplate Figure 10: Nameplate 5831400/02 EN...

  • Page 28: Packaging, Transport And Storage

    5 Packaging, transport and storage 5.1 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 29 5 Packaging, transport and storage Every delivered shipment must be checked for the following by the recipient before acceptance (acknowledgment of receipt): ▪ Completeness based on the delivery slip ▪ External damage of any type. The checks must take place after unloading when the cartons or transport container can be accessed from all sides.

  • Page 30: Storage Of Shipments

    5 Packaging, transport and storage 5.5 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.
  • Page 31 6 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 electri- cal equipment.

  • Page 32: Transporting In The Installed State

    6 Installation and commissioning NOTICE Damage to the device! If you kink the capillary line or carry the device by the capillary line, the de- vice can become damaged and display incorrect measured values as a re- sult. ► Carefully remove the device from the packaging. ►...

  • Page 33: Mounting The Pointer Thermometer

    6 Installation and commissioning 1. Immerse the temperature sensor of the pointer thermometer and a cali- brated glass thermometer in the liquid bath for approx. 15 minutes. 2. Compare the measured temperature values of the pointer thermometer and glass thermometer with each other. ð...
  • Page 34 6 Installation and commissioning 6.3.1.1 Attaching the Compact Standard pointer thermometer You can use the following screws to attach the pointer thermometer: ▪ M8 hexagon screws or cylinder screws. ▪ Use a screw length that is appropriate based on the installation situation. To attach the pointer thermometer to the transformer, proceed as follows: 1.
  • Page 35 6 Installation and commissioning 2. Attach the pointer thermometer with vibration-damping plate to the trans- former. Figure 13: Attaching the pointer thermometer with vibration-damping plate 6.3.1.2 Attaching the Compact RM pointer thermometer You can use the following screws to attach the pointer thermometer: ▪...
  • Page 36 6 Installation and commissioning To attach the pointer thermometer to the transformer, proceed as follows: 1. Drill two holes, with a distance of 184 mm (7.24") and a diameter of 12.5 mm (0.49"), in a suitable bracket on the outside of the transformer, on the control cabinet mounting plate or on another suitable structure.

  • Page 37: Securing The Capillary Line

    6 Installation and commissioning 6.3.2 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 can lead to a loss of de- vice function! ►...
  • Page 38 6 Installation and commissioning 2. Unscrew the large screw connection of the temperature sensor from the small screw connection. Figure 17: Unscrewing the large screw connection 3. Insert the large screw connection into the transformer thermometer pocket along with the gasket (gasket not included in the scope of delivery) and secure it.
  • Page 39 6 Installation and commissioning 4. Insert the temperature sensor into the large screw connection and turn it to the desired position together with the capillary line. Tighten the small screw connection of the thermometer sensor. Figure 19: Inserting and securing the temperature sensor When using the offshore variant of the temperature sensor (No. 6 VA), be aware of the wrench sizes and torque specifica- tions that deviate [►Section 12.3, Page 111] from the stan-...

  • Page 40: Inserting The No. 7 Rm Temperature Sensor

    6 Installation and commissioning 6.3.4 Inserting the No. 7 RM temperature sensor ► Ensure that the temperature sensor is dry or a small amount of conduc- tive paste is applied to it, and insert it into the thermometer sleeve, align it and secure it using the screw connection. Figure 20: Inserting and securing the temperature sensor 5831400/02 EN...

  • Page 41: Attaching The Step Protection (Optional)

    6 Installation and commissioning 6.3.5 Attaching the step protection (optional) You can equip the capillary line for No. 6 VA and No. 7 sensors [►Section 12.3, Page 111] with step protection. Figure 21: Step protection 1 Step protection 2 Fixing screw 3 Large screw connection 4 Capillary line 1.

  • Page 42: Electrical Connection

    6 Installation and commissioning 6.4 Electrical connection DANGER Electric shock! Danger of death due to electrical voltage when assembling/ disassembling 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 43: Preparation

    6 Installation and commissioning NOTICE Damage to the device! Electrostatic discharge can lead to damage to the device. ► Take precautionary measures to prevent the build-up of electrostatic charges on work surfaces and personnel. 6.4.1 Preparation Observe the following information for the electrical connection. 6.4.1.1 Electromagnetic compatibility The device has been developed in accordance with the applicable EMC standards.
  • Page 44 6 Installation and commissioning Suitable equipment includes isolating devices in accordance with IEC 60947-1 and IEC 60947-3 (e.g. circuit breakers). Observe the properties of the relevant circuits (voltage, maximum currents) when selecting the cir- cuit breaker type. In addition, observe the following: ▪...
  • Page 45 6 Installation and commissioning ▪ If both low voltage and extra-low voltage are connected in the device, it must be ensured that the circuits for extra-low voltage and for low voltage in the connection area and in the cable are separated from each other with double insulation.

  • Page 46: Removing The Bayonet Seal Ring

    6 Installation and commissioning Modbus RTU We recommend a shielded twisted pair cable. A shielded twisted pair cable is recommended. To optimize the number of cables and the cable glands, it may be advantageous to run Modbus and the 24 V supply in the same ca- ble.

  • Page 47: Opening The Cover Plate

    6 Installation and commissioning 6.4.3 Opening the cover plate The individual connection cables in the device are connected as shown in the diagram, which is printed on the inside of the cover plate. ► Open the cover plate. Figure 23: Opening the cover plate 5831400/02 EN...
  • Page 48 6 Installation and commissioning Figure 24: Cover plate open 1 Connections for micro-switches 2 Winding temperature indicator only: connections for current trans- former and voltmeter (type W) or ohmmeter (type WR) 3 Optional connections for supply, 4 PE 4...20 mA analog output and Mod- 5831400/02 EN...

  • Page 49: Cable Glands And Adapters

    6 Installation and commissioning 6.4.4 Cable glands and adapters ► NOTICE!  If cable glands or adapters are not used, these must be sealed with suitable seals and metal locking screws to ensure the IP55 de- gree of protection and flame protection of the device. Metal locking screws are available as accessories: ▪...
  • Page 50 6 Installation and commissioning 6.4.4.1 Standard cable gland 1. Remove the locking screw on the adapter. Figure 26: Removing the locking screw 2. Unscrew the provided cable gland and remove the dust protection disk. Figure 27: Removing the dust protection disk 5831400/02 EN...
  • Page 51 6 Installation and commissioning 3. Route a sufficient length of connection cable through the cable gland and adapter and tighten the cable gland (see Cable gland dimensions) Figure 28: Cable gland Also refer to 2 Connecting cable glands/NPT adapters [► 74] 6.4.4.2 WADI cable gland (stainless steel or brass) 1.
  • Page 52 6 Installation and commissioning 2. Unscrew the provided cable gland and remove the dust protection disk. Figure 30: Removing the dust protection disk 3. Route a sufficient length of connection cable through the cable gland and adapter and tighten the cable gland. Figure 31: Cable gland Also refer to 2 Connecting cable glands/NPT adapters [► 74]...
  • Page 53 6 Installation and commissioning 6.4.4.3 Offshore cable gland (stainless steel) 1. Remove the locking screw on the adapter. Figure 32: Removing the locking screw 2. Unscrew the provided cable gland and remove the dust protection disk. Figure 33: Removing the dust protection disk 5831400/02 EN...
  • Page 54 6 Installation and commissioning 3. Route a sufficient length of connection cable through the cable gland and adapter and tighten the cable gland. Figure 34: Cable gland Also refer to 2 Connecting cable glands/NPT adapters [► 74] 6.4.4.4 EMC double cable gland (accessory) Use shielded conductors for the Modbus wiring and connect the shield on both sides (same shielding potential for all devices).
  • Page 55 6 Installation and commissioning Prepare the cables before inserting into the cable gland: 1. Strip a length of at least 15 mm of insulation from the cables. 2. Insulate the braid at the lower end with insulating tape. Figure 35: Stripping and insulating the cables The cable gland can now be attached.
  • Page 56 6 Installation and commissioning 3. Mark this position above the gland on the cable sheath. Figure 37: Marking the cables 4. Pull the cables back out to a length of 10 mm from the marking. Figure 38: Pulling the cables out 5. Attach the cable gland to the device housing (wrench size 30). 6.
  • Page 57 6 Installation and commissioning Unitronic Robust C (TP) 3 x 2 x 0.5 from Lapp ▪ Shielded; 3x twisted pair (TP); 0.5 mm – 1 TP used for 24 VDC – 1 TP used for Modbus A and B – 1 TP used for Modbus_Common_GND ▪ External diameter 8.7 mm Also refer to 2 Connecting cable glands/NPT adapters [► 74] 6.4.4.5 1/2"...
  • Page 58 6 Installation and commissioning 6.4.4.6 3/4" 14NPT adapter 1. Remove the locking cap. Figure 40: Removing the locking cap 2. Hold the adapter with an open-end wrench. Figure 41: Holding the adapter 3. Screw a cable conduit or cable tube with 3/4″ 14NPT external thread into the adapter correctly and tightly.

  • Page 59: Connecting The Protective Conductor

    6 Installation and commissioning 6.4.5 Connecting the protective conductor 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. 6.4.5.1 Connecting the protective conductor for oil temperature indicator without plug and without interface This section only applies for the basic MT-ST160SK Standard version with- out the RM option and without interface (not for type TT or type TTM).
  • Page 60 6 Installation and commissioning 6.4.5.2 Connecting the protective conductor for other device versions without plug This section applies for all oil temperature indicators with interface (type TT and type TTM) and without plug connection (without RM option). This section also applies for all winding temperature indicators without plug connection (without RM option), regardless of whether they are with or with- out interface.
  • Page 61 6 Installation and commissioning For pointer thermometer versions with plug, the protective conductor con- nection must be established as follows: ► Connect the pointer thermometer to the grounding point of the trans- former using the protective conductor cable via the PE connecting bolt attached to the housing.

  • Page 62: Connecting The Interfaces (Optional)

    6 Installation and commissioning 6.4.6 Connecting the interfaces (optional) NOTICE Damage to the device! Applying an incorrect test voltage to the terminals for the 4…20 mA analog outputs (types TT, TTM) or to the terminals for Modbus and the supply volt- age (type TTM) can cause damage to the device.
  • Page 63 6 Installation and commissioning 3. Use ferrules for flexible lines (with a collar of max. 0.75 mm²). Figure 45: Cable preparation for interfaces You will need an actuating tool if wires have to be released from the Push-in terminals used. An actuating tool is not absolutely necessary for connecting the wires.
  • Page 64 6 Installation and commissioning 3. Release the white actuator. Figure 46: Connecting the analog output 4. Connect an evaluation unit with driving output (18...30 VDC) or, if neces- sary, an additional power supply (24 VDC). 6.4.6.2 Active 4…20 mA analog output (type TTM) connection The pointer thermometer is equipped with an active analog output that is- sues the temperature value as an electrical 4…20 mA signal.
  • Page 65 6 Installation and commissioning 3. Release the actuator. Figure 47: Connecting the supply voltage Connecting the 4...20 mA analog output in accordance with the connection diagram 1. Use the same method to attach the wires for the analog output to the ter- minals "4…20 mA (+/–)".
  • Page 66 6 Installation and commissioning 6.4.6.3 Modbus RTU (type TTM) connection The pointer thermometer is equipped with a Modbus RTU (RS-485) interface that digitally transmits the temperature value. The interface has a half-duplex design. Connecting the 24 VDC power supply in accordance with the connection diagram 1.

  • Page 67: Connecting The Micro-Switches

    6 Installation and commissioning Connecting the Modbus RTU in accordance with the connection diagram ► Use the same method to attach the wires for the Modbus RTU to the ter- minals "A", "COM" and "B". Do so by pushing the wires through the opening up to the stop.
  • Page 68 6 Installation and commissioning WARNING Electric shock If a wire comes loose from a terminal, it is important to prevent dangerous voltage and extra-low voltage from meeting. ► Secure wire bundles with a dangerous contact voltage with a cable tie. ►...
  • Page 69 6 Installation and commissioning This section also applies for all winding temperature indicators without plug connection (without RM option), regardless of whether they are with or with- out interface. Limited space in the device can make the connection more dif- ficult.
  • Page 70 6 Installation and commissioning 3. Remove the actuator tool. Figure 52: Micro-switch board connection 1 Connection diagram 2 Terminal strip 6.4.7.3 Connection for micro-switches via M plug (Compact RM) Devices with a plug connection may be set up with either only extra-low-voltage circuits or only low-voltage circuits using the device plug.
  • Page 71 6 Installation and commissioning In order to connect the M plug, proceed as follows: NOTICE!  Damage to cables and conductors! When installing the M plug connector on the M plug, the cable can twist. Twisting can cause cable breaks. Push the plug connector onto the device plug, hold the cable and turn the threaded cap clockwise to the stop.
  • Page 72 6 Installation and commissioning 3. Connect the wires at the free end of the connection cable in the control cabinet in accordance with the supplied connection diagram. Figure 54: Connection assignment, view of installed M plug 1 Coding contour A Black B Red C Blue D Orange...
  • Page 73 6 Installation and commissioning 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. Twisting can cause cable breaks. Push the plug connector onto the device plug, hold the ca- ble and turn the threaded cap clockwise to the stop.

  • Page 74: Connecting Cable Glands/Npt Adapters

    6 Installation and commissioning 3. Connect the wires at the free end of the connection cable in the control cabinet in accordance with the supplied connection diagram. Figure 56: Connection assignment, view of installed ANSI connector 1 Black 2 Red 3 Blue 4 Orange 5 Yellow 6 Brown...

  • Page 75: Checking Micro-Switches

    6 Installation and commissioning 6.5 Checking micro-switches NOTICE Damage to the device! If you move the micro-switches on the colored indicator points, they can bend or break. ► Only move micro-switches on the retaining bridges of the indicator points. NOTICE Damage to the device! Turning the pointer counter-clockwise can damage the device.

  • Page 76: Micro-Switch To The Left Of The Pointer

    6 Installation and commissioning 2. Slowly return the pointer to its starting position. Figure 58: Returning the micro-switches ð A return spring pulls the pointer back to its exact starting position. 6.5.2 Micro-switch to the left of the pointer If the micro-switch is to the left of the pointer, proceed as follows: 1.
  • Page 77 6 Installation and commissioning 2. Set the micro-switches back to their original value. 5831400/02 EN...

  • Page 78: Setting Temperature Gradients (Winding Temperature)

    6 Installation and commissioning 6.6 Setting temperature gradients (winding temperature) Since the temperature sensor is located in a thermometer pocket instead of directly in the winding, the temperature difference between the winding and the insulating fluid must be taken into account. The temperature difference at nominal load is called the temperature gradient.

  • Page 79: Gradient Setting By Heating Current (W)

    6 Installation and commissioning 6.6.1 Gradient setting by heating current (W) For the MT-ST160W and MT-ST160W/RM device versions, set the tempera- ture gradient by adjusting the heating current. You can measure the heating current indirectly via the voltage drop on the internal 0.1 Ω...
  • Page 80 6 Installation and commissioning Setting curve for the heating current The heating current to be set is determined depending on the required tem- perature gradient gr from the following setting curve: Figure 61: Setting curve gr Temperature gradient Heating current Example: Temperature read: 30 °C Required temperature gradient: 20 K Required display temperature: 30 °C + 20 K = 50 °C...
  • Page 81 6 Installation and commissioning Setting temperature gradients ü Make sure that the temperature on the temperature sensor remains con- stant during the setting process. ü Open the cover plate. 1. Write down the temperature currently displayed (e.g. 30 °C). 2. Connect a constant current source to terminals 3 and 6. Figure 62: Current source connection 3.
  • Page 82 6 Installation and commissioning 3. Use the adjusting screw of the potentiometer to make an adjustment until the numerical value of the measured voltage matches the desired value of the heating current (1.05 A in this example). Turning the adjusting screw to the right causes the heating current to increase, and turning it to the left causes it to decrease.

  • Page 83: Gradient Setting By Resistance Value (Wr)

    6 Installation and commissioning 6.6.2 Gradient setting by resistance value (WR) For the MT-ST160WR and MT-ST160WR/RM device versions, set the tem- perature gradient by adapting the resistance value. The resistance of the heating circuit is measured directly at terminals with an ohmmeter. This resistance can be adjusted by setting the poten- tiometer P.
  • Page 84 6 Installation and commissioning Setting curve The resistance value to be set depends on the nominal secondary trans- former current and the temperature gradient of the transformer and results from the following setting curves: Figure 65: Resistance setting curve gr Temperature gradient R Resistance of the heating circuit Nominal secondary transformer current...
  • Page 85 6 Installation and commissioning 2. Remove the bridge at terminals 4 and 5. Figure 66: Detaching bridge 3. Connect an ohmmeter to terminals 3 and 6. Figure 67: CT connection 5831400/02 EN...
  • Page 86 6 Installation and commissioning 4. Set the required resistance value using the adjusting screw of the poten- tiometer. Turning the adjusting screw to the right causes the resistance value to increase, and turning it to the left causes it to decrease. Figure 68: Potentiometer adjusting screw 5.

  • Page 87: Connecting The Current Transformer (Winding Temperature)

    6 Installation and commissioning 2. If a constant temperature cannot be ensured, we recommend taking the temperature sensor out of the thermometer pocket and placing it in a ther- mometer calibration bath. Set the calibration bath to a temperature of 40 °C for this example.
  • Page 88 6 Installation and commissioning NOTICE Damage to the device due to overload! At a nominal secondary transformer current that is not 2 A, you must also use a universal multi-ballast transformer (e.g. MESSKO® MultiBallast-TX). ► Connect the universal multi-ballast transformer in accordance with the associated operating instructions.

  • Page 89: Configuring Modbus (Type Ttm)

    6 Installation and commissioning 6.8 Configuring Modbus (type TTM) You can change the Modbus configuration settings if the factory settings are not suitable for your application. You need a configuration tool for this (e.g. the ASE2000 available on the market). 1.

  • Page 90: Closing The Cover Plate

    6 Installation and commissioning Issuing the same network address twice will lead to malfunc- tions. Parity For data transmission, the parity is determined as follows: Parity Delivery state (factory setting) Even Optional Odd / none Ensure that the same Modbus settings are made in your SCADA system. Also refer to: Modbus RTU [►Section 11.4, Page 106] 6.9 Closing the cover plate...

  • Page 91: Positioning The Bayonet Seal Ring

    6 Installation and commissioning 6.10 Positioning the bayonet seal ring ü Ensure that the drag hand is positioned to the right of the pointer. Figure 71: Position of the drag hand ► Reposition the bayonet seal ring with viewing glass on the pointer ther- mometer, press down firmly and turn 30...40°...

  • Page 92: Operation

    7 Operation 7.1 Resetting drag hands The drag hand slides along with the pointer when measured temperature values increase and marks its maximum value. You can reset the drag hand as follows: ► Return the drag hand to the position of the thermometer pointer manually using the drag hand reset.

  • Page 93: 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 Germany E-mail: service@reinhausen.com...

  • Page 94: Fault Elimination

    9 Fault elimination This chapter describes how to eliminate operating faults. If a solution for a fault cannot be found, contact the manufacturer: Maschinenfabrik Reinhausen GmbH MR Service & Complaint Falkensteinstrasse 8 93059 Regensburg Germany E-mail: service@reinhausen.com E-mail: complaint@reinhausen.com Please have the following data ready: ▪...

  • Page 95: General Malfunctions (Type Tt)

    9 Fault elimination 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 Modbus RTU interface ▪...

  • Page 96: General Malfunctions (Type Ttm)

    9 Fault elimination 9.2 General malfunctions (type TTM) You are using a device with Modbus and active 4…20 mA analog output. Characteristics/ Cause Remedy details No function Power supply not present ▪ Check cables (4...20 mA) ▪ Check power supply (18… 30 VDC) No function (Mod- bus) ▪...

  • Page 97: Modbus Communication Malfunctions (Type Ttm)

    9 Fault elimination Characteristics/ Cause Remedy details The receiver mea- ▪ A part of the current is run- ▪ Loop in multimeter and sures a 20 mA ning through a parallel path measure loop current that is ▪ Load resistance too high ▪...

  • Page 98: Self-Diagnostic / Data Point Device Status (Type Ttm)

    9 Fault elimination Characteristics/ Cause Remedy details No communication ▪ Modbus address assigned ▪ Check parameters (device possible (sporadic) multiple times and master) ▪ Change parameters if nec- essary; see chapter Config- uring Modbus RTU [►Section 11.4, Page 106] ▪ Device defective Table 12: Modbus communication malfunction 9.5 Self-diagnostic / data point DEVICE STATUS (type TTM) The device checks its own functionality cyclically (self-diagnostic).
  • Page 99 9 Fault elimination Status bit value/char- Cause Remedy acteristic/detail 4: Pointer out of mea- ▪ Device defective ▪ Contact Maschinenfabrik suring range: Pointer Reinhausen GmbH. ▪ Extremely low oil angle is 20 angular de- temperatures ▪ Are the oil temperatures/CT grees smaller than the currents/gradients actually ex- ▪...

  • Page 100: Disposal

    10 Disposal Observe the national disposal regulations in the country of use. 10.1 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, Authorization and Restriction of Chemicals (REACH). The following components of the product contain >...

  • Page 101: Technical Data

    11 Technical data 11.1 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 102: Technical Data

    11 Technical data Basic materials Capillary line Copper capillary with protective jacket Offshore optional As per the requirements in accordance with DIN EN ISO 12944-9 with corrosion-protection class CX Dimensions and weight Compact housing Ø 173 mm [Ø 6.81″]; depth 98 mm [3.86″] Compact RM housing Ø 173 mm [Ø6.81″]; depth 71 mm [2.80″] Weight Approx.

  • Page 103: Micro-Switches

    11 Technical data RS485 interface for Modbus RTU (type TTM) Wiring 2-wire; half-duplex Terminal designation Polarity: A = D+; B = D-; COM=common ground Expected voltage between A and B in the idle state: >+200 mV Rated insulation voltage 500 VDC/1 min; terminals to ground 11.3 Micro-switches Micro-switch technical data Quantity 1…6 adjustable micro-switches...
  • Page 104 11 Technical data Utilization category in accordance with IEC 60947‑5‑1 Utilization cate- Typical application Rating/nominal gory in accor- operation dance with IEC 60947‑5‑1 AC-12 Regulation of resistive load and semi-con- 230 V 5 A ductor load resistance with disconnection (50/60 Hz) via optocoupler AC-15 Regulation of electromagnetic load resis- 230 V 0.26 A tance with AC voltage...
  • Page 105 11 Technical data Blue Green Yello <1 K min. 6%* min. 6%* * from the measuring range Figure 74: Switch arrangement 1+2 tight <1 K with standard model Green Yello Blue min. 6%* min. 6%* <1 K * from the measuring range Figure 75: Switch arrangement 3+4 tight <1 K Blue Green Yello...

  • Page 106: Modbus Rtu

    11 Technical data 11.4 Modbus RTU Factory settings Device version Modbus address Baud rate Parity MESSKO® COMPACT (RM) 19200 EVEN Oil temperature indicator MT-ST160SK/… MT-ST160SK/…/RM MESSKO® COMPACT (RM) 19200 EVEN Winding temperature indicator MT-ST160W(R)/… MT-ST160W(R)/…/RM Table 14: Modbus RTU factory settings Input register Function code "04"...
  • Page 107 11 Technical data Address Data type Designation UINT16 Firmware version major UINT16 Firmware version minor UINT16 Firmware version patch Table 15: Input register With FLOAT parameters, the MSB (Most Significant Bit) is stored in the lower address and the LSB (Least Significant Bit) in the higher address. Configuration via holding register Each address must be unique in the BUS system.
  • Page 108 11 Technical data Address Data type Designation Setting option 5…72 Reserved 73…79 STRING Serial number 7-digit, 1 number per register in ASCII-format Table 16: Holding register Delivery condition/default settings We recommend deactivating the 4...20 mA analog output when it is not needed. This will prevent the pseudo-error "4...20 mA output defective". This will also reduce the power loss in the device and extend its service life.

  • Page 109: Appendix

    12 Appendix 12.1 Compact pointer thermometer dimensions Figure 77: MESSKO® Compact 5831400/02 EN...

  • Page 110: Compact Rm Pointer Thermometer Dimensions

    12 Appendix 12.2 Compact RM pointer thermometer dimensions Figure 78: MESSKO® Compact RM 5831400/02 EN...

  • Page 111: Temperature Sensor

    12 Appendix 12.3 Temperature sensor Figure 79: Temperature sensor 1 Standard variant (No. 7) 2 Offshore variant (No. 6 VA) 3 For Compact RM (No. 7 RM) 5831400/02 EN...

  • Page 112: Step Protection

    12 Appendix 12.4 Step protection Figure 80: Step protection (only in combination with sensor No. 6 VA and sensor No. 7) 5831400/02 EN...

  • Page 113: Vibration-Damping Plate/Mounting Plate

    12 Appendix 12.5 Vibration-damping plate/Mounting plate Figure 81: Dimensional drawing for vibration-damping plate and mounting plate 1 Vibration-damping plate (Compact 2 Mounting plate (Compact RM) standard) 5831400/02 EN...

  • Page 114: Cable Gland Dimensions

    12 Appendix 12.6 Cable gland dimensions Standard cable gland M25x1.5 nickel-plated brass Clamping range 9...20 mm Figure 82: Standard cable gland 1 Gland base 2 Pressure ring 3 Universal sealing ring, NBR 4 Pressure ring 5 Dust protection disk 6 Pressure screw 5831400/02 EN...
  • Page 115 12 Appendix WADI cable screw connection (water-tight; optional) Figure 83: WADI cable screw connection; material: nickel-plated brass; clamping range 13...20 mm Offshore cable screw connection (optional) Figure 84: Offshore cable screw connection; material: stainless steel (V4A); clamping range 9...17 mm 5831400/02 EN...
  • Page 116 12 Appendix NPT adapters (optional) Figure 85: NPT adapters 1/2" NPT 3/4" NPT 5831400/02 EN...
  • Page 117 12 Appendix EMC double cable gland (optional) Figure 86: EMC double cable gland 5831400/02 EN...

  • Page 118: Glossary

    Glossary Ambient air temperature Operating temperature Permissible temperature of the air in the Permissible temperature in the immedi- surroundings of the equipment in opera- ate surroundings of the device during tion on which the device is installed. operation taking ambient influences, for example due to the equipment and in- stallation location, into consideration.
  • Page 120 Maschinenfabrik Reinhausen GmbH Falkensteinstrasse 8 93059 Regensburg +49 (0)941 4090-0 sales@reinhausen.com www.reinhausen.com ® 5831400/02 EN - MESSKO COMPACT - F0389202 - 05/23 - Maschinenfabrik Reinhausen GmbH 2023 THE POWER BEHIND POWER.

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