MR MESSKO MT-ST Compact Operating Instructions Manual
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MR MESSKO MT-ST Compact Operating Instructions Manual

Pointer thermometer
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Pointer Thermometer
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MESSKO
®
MESSKO
Operating Instructions
BA5831400-00 EN
MT-ST Compact /
MT-ST Compact RM

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Summary of Contents for MR MESSKO MT-ST Compact

  • Page 1 Pointer Thermometer ® MESSKO MT-ST Compact / ® MESSKO MT-ST Compact RM Operating Instructions BA5831400-00 EN...
  • Page 2 © All rights reserved by Messko GmbH 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................ 6 Manufacturer.................. 6 Completeness..................  6 Safekeeping.................. 6 Notation conventions ...............  6 1.4.1 Hazard communication system .............. 6 1.4.2 Information system.................. 8 1.4.3 Instruction system .................. 8 1.4.4 Typographic conventions ................ 9 Safety................... 10 Appropriate use ................ 10 Fundamental Safety Instructions ...........  11 Personnel qualification..............
  • Page 4 Table of contents Suitability, structure and production.......... 26 Markings .................. 26 Transportation, receipt and handling of shipments...... 26 Storage of shipments.............. 28 Further transport ................ 28 Installation and commissioning........ 29 Transporting in the installed state.......... 30 Checking measured temperature values ........ 30 Mounting the pointer thermometer..........
  • Page 5 Table of contents Connecting the current transformer (winding temperature) ...  73 Closing the cover plate .............. 74 Positioning the bayonet seal ring...........  75 Operation................ 76 Resetting drag hands.............. 76 Maintenance, inspection and care ........ 77 Disposal................ 78 Technical data.............. 79 Ambient conditions ................  79 Technical data ................

  • Page 6: Introduction

    1 Introduction This technical document contains detailed descriptions on the safe and proper installation, connection, commissioning and monitoring of the prod- uct. This technical document is intended solely for specially trained and autho- rized personnel. 1.1 Manufacturer The product is manufactured by: Messko GmbH Gewerbegebiet An den Drei Hasen Messko-Platz 1...
  • Page 7 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 8: Information System

    1 Introduction Pictograms warn of dangers: Pictogram Definition Warning of a danger point Warning of dangerous electrical voltage Warning of combustible substances Warning of a tipping hazard Warning of a hot surface Table 2: Pictograms used in warning notices 1.4.2 Information system Information is designed to simplify and improve understanding of particular procedures.

  • Page 9: Typographic Conventions

    1 Introduction 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 Result of step (optional). ð Result of action (optional). Multi-step instructions Instructions which consist of several process steps are structured as follows: Aim of action ü...

  • Page 10: Safety

    2 Safety This technical document contains detailed descriptions on the safe and proper installation, connection, commissioning and monitoring of the prod- uct. ▪ Read this technical file through carefully to familiarize yourself with the product. ▪ This technical file is a part of the product. ▪...

  • Page 11: Fundamental Safety Instructions

    2 Safety 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 12 2 Safety 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 13 2 Safety 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 14 2 Safety Technical Service We strongly recommend having repairs and retrofitting carried out by our Technical Service department. This ensures that all work is performed cor- rectly. If repair work is not carried out by our Technical Service department, please ensure that the personnel who carry out the repairs are trained and authorized to do so by Maschinenfabrik Reinhausen GmbH.
  • Page 15 2 Safety Special personal protective equipment for particular environments Safety glasses To protect the eyes from flying parts and splash- ing liquids. Visor To protect the face from flying parts and splash- ing liquids or other dangerous substances. Hard hat To protect from falling and flying parts and mate- rials.

  • Page 16: Product Description

    3 Product description This chapter contains an overview of the design and function of the product. 3.1 Scope of delivery The product is packaged with protection against moisture and is delivered as follows: ▪ Pointer thermometer with temperature sensor ▪ Technical documents Optional: ▪...
  • Page 17 3 Product description cated in the thermometer pocket mounted in the transformer tank. The mea- sured value is displayed directly on the pointer thermometer or, as an option, on an analog or digital display using a signal converter. Figure 1: Example of temperature measurement and temperature display 1 Transformer 2 Pointer thermometer for winding temperature...

  • Page 18: Design

    3 Product description 3.3 Design 3.3.1 MESSKO Compact Standard pointer thermometer Depending on your order, the pointer thermometer features cable glands or NPT adapters. Figure 2: Pointer thermometer 1 Temperature sensor 2 Capillary line 3 Adapters 4 Vibration-damping plate 5 Bayonet seal ring, glass pane and 6 Cover plate gasket 7 Calibration screw...

  • Page 19: Messko Compact Rm Pointer Thermometer

    3 Product description 3.3.2 MESSKO Compact RM pointer thermometer 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...

  • Page 20: Cable Glands/Adapters

    3 Product description 3.3.3 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 BA5831400-00 EN...

  • Page 21: Ventilation

    3 Product description 3.3.4 Ventilation The pointer thermometer features ventilation to prevent the formation of con- densate. Figure 5: Ventilation BA5831400-00 EN...

  • Page 22: Temperature Sensor

    3 Product description 3.3.5 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 * 5 Capillary line *) only for No. 6 VA and No. 7 sensors [►Section 10.3, Page 85] 3.4 Versions The MESSKO Compact pointer thermometer is available in the following ver- sions:...
  • Page 23 3 Product description MESSKO Compact Standard MT-ST160W and MT-ST160WR and MESSKO Compact RM MT-ST160W/RM and MT-ST160WR/RM ▪ Display of the winding temperature. ▪ Pointer thermometer with adjustable micro-switches. ▪ The displayed temperature corresponds to the winding temperature based on the oil temperature, secondary transformer current and the tempera- ture difference.

  • Page 24: Safety Markings

    3 Product description 3.5 Safety markings Figure 7: Safety markings 1 Observe the documentation 2 Protective conductor connection [►Section 5.4.5.1, Page 53] Figure 8: Additional safety marking for thermometer version with plug 1 Protective conductor connection [►Section 5.4.5.2, Page 53] BA5831400-00 EN...

  • Page 25: Nameplate

    3 Product description 3.6 Nameplate Figure 9: Nameplate BA5831400-00 EN...

  • Page 26: 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 27 4 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 kind. The checks must take place after unloading, when the box or transport con- tainer can be accessed from all sides.

  • Page 28: Storage Of Shipments

    4 Packaging, transport and storage 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.
  • Page 29 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 electri- cal equipment.

  • Page 30: Transporting In The Installed State

    5 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 31: Mounting The Pointer Thermometer

    5 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 32 5 Installation and commissioning 5.3.1.1 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 33 5 Installation and commissioning 2. Attach the pointer thermometer with vibration-damping plate to the trans- former. Figure 12: Attaching the pointer thermometer with vibration-damping plate 5.3.1.2 Attaching the Compact RM pointer thermometer You can use the following screws to attach the pointer thermometer: ▪...
  • Page 34 5 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 35: Securing The Capillary Line

    5 Installation and commissioning 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 can lead to a loss of de- vice function! ►...
  • Page 36 5 Installation and commissioning 2. Unscrew the large screw connection of the temperature sensor from the small screw connection. Figure 16: 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 37 5 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 18: 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 10.3, Page 85] from the stan-...

  • Page 38: Inserting The No. 7 Rm Temperature Sensor

    5 Installation and commissioning 5.3.4 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 19: Inserting and securing the temperature sensor BA5831400-00 EN...

  • Page 39: Attaching The Step Protection (Optional)

    5 Installation and commissioning 5.3.5 Attaching the step protection (optional) You can equip the capillary line for No. 6 VA and No. 7 sensors [►Section 10.3, Page 85] with step protection. Figure 20: Step protection 1 Step protection 2 Fixing screw 3 Large screw connection 4 Capillary line 1.

  • Page 40: Electrical Connection

    5 Installation and commissioning 5.4 Electrical connection This chapter describes how to connect the device correctly. Note the con- nection diagrams provided. Observe 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 41 5 Installation and commissioning 5.4.1.1.1 Wiring requirement of installation site Note the following when selecting the installation site: ▪ The system's overvoltage protection must be effective. ▪ The system's ground connection must comply with all technical regula- tions. ▪ Separate system parts must be joined by a potential equalization. 5.4.1.1.2 Wiring requirement of operating site Note the following when wiring the operating site: ▪...
  • Page 42 5 Installation and commissioning 5.4.1.2 Safeguarding the power circuits You may only connect the device to circuits with an external overcurrent pro- tective device and an all-pole isolating device so that the equipment can be fully de-energized if required. Suitable equipment includes isolating devices in accordance with IEC 60947-1 and IEC 60947-3 (e.g.
  • Page 43 5 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 44: Removing The Bayonet Seal Ring

    5 Installation and commissioning 5.4.2 Removing the bayonet seal ring Before connecting, setting or testing the pointer thermometer, the bayonet seal ring must be removed. ► Turn the bayonet seal ring counter-clockwise to the stop. Figure 22: Removing the bayonet seal ring ►...

  • Page 45: Opening The Cover Plate

    5 Installation and commissioning 5.4.3 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 5.4.4 Preparing the cables To prepare the cables correctly, proceed as follows: 1.
  • Page 46 5 Installation and commissioning 4. Ensure that the cable for the protective conductor is 50 mm longer and equip the conductor with a ferrule. Figure 24: Stripping the cable jacket and wire insulation (example) 5.4.4.1 Standard cable gland NOTICE!  If the cable gland is not used, equip it with a sealing plug or re- place the entire cable gland with a dummy plug in order to ensure the IP degree of protection.
  • Page 47 5 Installation and commissioning 3. Unscrew the provided cable gland and remove the dust protection disk. Figure 26: Removing the dust protection disk 4. Route a sufficient length of connection cable through the cable gland and adapter and tighten the cable gland (see Cable gland dimensions [►Section 10.6, Page 88]).
  • Page 48 5 Installation and commissioning 5.4.4.2 WADI cable gland (stainless steel or brass) NOTICE!  If the cable gland is not used, equip it with a sealing plug or re- place the entire cable gland with a dummy plug in order to ensure the IP degree of protection.
  • Page 49 5 Installation and commissioning 4. Route a sufficient length of connection cable through the cable gland and adapter and tighten the cable gland. Figure 30: Cable gland 5.4.4.3 Offshore cable gland (stainless steel) NOTICE!  If the cable gland is not used, equip it with a sealing plug or re- place the entire cable gland with a dummy plug in order to ensure the IP degree of protection.
  • Page 50 5 Installation and commissioning 3. Unscrew the provided cable gland and remove the dust protection disk. Figure 32: Removing the dust protection disk 4. Route a sufficient length of connection cable through the cable gland and adapter and tighten the cable gland. Figure 33: Cable gland 5.4.4.4 1/2"...
  • Page 51 5 Installation and commissioning 2. Remove the locking cap. Figure 34: Removing the locking cap 3. Screw a cable conduit or cable tube with 1/2" 14NPT external thread into the adapter correctly and tightly. Feed through a sufficient length of cable. 5.4.4.5 3/4"...
  • Page 52 5 Installation and commissioning 3. Hold the adapter with an open-end wrench. Figure 36: Holding the adapter 4. Screw a cable conduit or cable tube with 3/4" 14NPT external thread into the adapter correctly and tightly. Feed through a sufficient length of cable. BA5831400-00 EN...

  • Page 53: Protective Conductor Connection

    5 Installation and commissioning 5.4.5 Protective conductor connection 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. 5.4.5.1 Protective conductor connection for devices without plug To connect the pointer thermometer with the protective conductor, proceed as follows: ►...
  • Page 54 5 Installation and commissioning In the version of the pointer thermometer with plug, the protective conductor must be connected as follows: ► Connect the pointer thermometer to the grounding point of the trans- former using a protective conductor cable via the PE connecting bolt at- tached to the housing.

  • Page 55: Connecting The Micro-Switches

    5 Installation and commissioning 5.4.6 Connecting the micro-switches 5.4.6.1 Connecting the micro-switches using the cable gland WARNING Electric shock! When a dangerous electrical voltage is applied to one of these main switching contacts, the neighboring relay contacts must not be operated with protective extra-low voltage. To connect the micro-switches, proceed as follows: ►...
  • Page 56 5 Installation and commissioning 5.4.6.2 Connecting the micro-switches using the 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. 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.
  • Page 57 5 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 41: Connection assignment, view of installed M plug 1 Coding contour A Black B Red C Blue D Orange...
  • Page 58 5 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 59: Connecting The Analog Sensor (Optional/Tt Version)

    5 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 43: Connection assignment, view of installed ANSI connector 1 Black 2 Red 3 Blue 4 Orange 5 Yellow 6 Brown...

  • Page 60: Connecting Cable Glands/Npt Adapters

    5 Installation and commissioning To connect the analog sensor, proceed as follows: 1. Connect the wires for the sensor to the terminal strip at the + and – termi- nals. Figure 44: Connecting the analog sensor 2. Connect an evaluation unit with driving input (12...30 V DC) or, if neces- sary, an additional power supply (24 V DC).

  • Page 61: Checking Micro-Switches

    5 Installation and commissioning 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. ► 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 62: Micro-Switch To The Left Of The Pointer

    5 Installation and commissioning 2. Slowly return the pointer to its starting position. Figure 46: Returning the micro-switches ð A return spring pulls the pointer back to its exact starting position. 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.
  • Page 63 5 Installation and commissioning 2. Set the micro-switches back to their original value. BA5831400-00 EN...

  • Page 64: Setting Temperature Gradients (Winding Temperature)

    5 Installation and commissioning 5.6 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 insulating fluid must be taken into account. The temperature difference at nominal load is called the temperature gradient.
  • Page 65 5 Installation and commissioning The heating current is measured indirectly using the voltage drop at the in- ternal 1Ω resistor. The relationship I = U/R produces the result that, at R = 1 Ohm, the numerical value of the measured voltage directly corre- sponds to the numerical value of the heating current. The heating current can be adjusted by setting the potentiometer P.
  • Page 66 5 Installation and commissioning Setting curve for the heating current The heating current to be set is given by the following setting curve based on the required temperature gradient gr: 0.4 0.5 0.6 0.7 0.8 0.9 1.1 1.2 1.3 1.4 1.5 1.6 Figure 49: Setting curve gr Temperature gradient Heating current...
  • Page 67 5 Installation and commissioning 1. Write down the temperature currently displayed (e.g. 30 °C). 2. Connect a constant current source to terminals Figure 50: Connecting the current source 3. Set the nominal secondary transformer current I (e.g. 2 A) on the current source. Determining the heating current ü...

  • Page 68: Gradient Setting By Resistance Value

    5 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 (1.1 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 69 5 Installation and commissioning 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. Figure 52: Circuit Secondary transformer current Heating current P Potentiometer The setting accuracy of the resistance value depends on the quality and measurement deviation of the measuring device used to measure the resistance value.
  • Page 70 5 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: 2.2 A 2.1 A 2.0 A 1.9 A 1.8 A 1.7 A 1.6 A 1.5 A 10.0...
  • Page 71 5 Installation and commissioning ü Open the cover plate. 1. Determine the necessary resistance value from the setting curve (8.6 Ω in this example). 2. Remove the bridge at terminals Figure 54: Bridge 3. Connect an ohmmeter to terminals 4. Set the required resistance value using the adjusting screw of the poten- tiometer.
  • Page 72 5 Installation and commissioning 5. Remove the measuring device. 6. Put the bridge back in terminals and tighten the lock screws. Since you are not working with the actual heating current dur- ing this setting process, we recommend a second calibration before commissioning.

  • Page 73: Connecting The Current Transformer (Winding Temperature)

    5 Installation and commissioning 5.7 Connecting the current transformer (winding temperature) WARNING Electric shock! Dangerous high voltages may occur when a current trans- former is operated with an open secondary circuit. This can lead to death, injuries and property damage. ►...

  • Page 74: Closing The Cover Plate

    5 Installation and commissioning ► Connect the current transformer (CT) to terminals on the ter- minal strip. Figure 56: Connecting the current transformer 5.8 Closing the cover plate ► Close the cover plate. Figure 57: Closing the cover plate BA5831400-00 EN...

  • Page 75: Positioning The Bayonet Seal Ring

    5 Installation and commissioning 5.9 Positioning the bayonet seal ring ü Ensure that the drag hand is positioned to the right of the pointer. Figure 58: 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 76: Operation

    6 Operation 6.1 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 77: Maintenance, Inspection And Care

    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 or complaint@reinhausen.com BA5831400-00 EN...

  • Page 78: Disposal

    8 Disposal Observe the national disposal regulations in the country of use. BA5831400-00 EN...

  • Page 79: Technical Data

    9 Technical data 9.1 Ambient conditions Permissible ambient conditions Ambient temperature -50…+80°C Storage temperature -50…+80°C Relative humidity Fog-free up to 80% Installation altitude 2,000 m above sea level Degree of protection IP55 in accordance with IEC 60529 Protection class Overvoltage category Contamination level 2 (within the device) 9.2 Technical data Pointer thermometer for...

  • Page 80: Technical Data

    9 Technical data Dimensions and weight Compact housing Ø 173 mm [Ø 6.81"]; depth 98 mm [3.86"] Compact RM housing Ø173 mm [Ø6.81"]; depth 71 mm [2.80"] Weight Approx. 2.5 kg (for 6 m capillary line) Analog sensor (TT version/ optional) Sensor Pressure measurement cell Supply voltage DC: 12...30 V unregulated, max.
  • Page 81 9 Technical data Micro-switches Quantity 1…6 adjustable micro-switches 1…4 change-over switch Minimum switching distance 6% of the measuring range for standard switch ar- rangement; <1 K for narrowing Contact material Silver nickel (AgNi10) Rated insulation voltage 2,500 V AC/1 min.; terminals to ground Switching hysteresis Approx.
  • Page 82 9 Technical data Blue Green Yello < 1 K min. 6%* min. 6%* * of measuring range Figure 62: Switch arrangement 1+2 tight < 1 K For standard version Green Yello Blue min. 6%* min. 6%* < 1 K * of measuring range Figure 63: Switch arrangement 3+4 tight < 1 K Blue Green Yello < 1 K min. 12%*...

  • Page 83: Appendix

    10 Appendix 10.1 Compact pointer thermometer dimensions Figure 65: MESSKO® Compact BA5831400-00 EN...

  • Page 84: Compact Rm Pointer Thermometer Dimensions

    10 Appendix 10.2 Compact RM pointer thermometer dimensions Figure 66: MESSKO® Compact RM BA5831400-00 EN...

  • Page 85: Temperature Sensor

    10 Appendix 10.3 Temperature sensor Figure 67: Temperature sensor 1 Standard variant (No. 7) 2 Offshore variant (No. 6 VA) 3 For Compact RM (No. 7 RM) BA5831400-00 EN...

  • Page 86: Step Protection

    10 Appendix 10.4 Step protection Figure 68: Step protection (only in combination with sensor No. 6 VA and sensor No. 7) BA5831400-00 EN...

  • Page 87: Vibration-Damping Plate/Mounting Plate

    10 Appendix 10.5 Vibration-damping plate/Mounting plate Figure 69: Dimensional drawing for vibration-damping plate and mounting plate 1 Vibration-damping plate (Compact 2 Mounting plate (Compact RM) standard) BA5831400-00 EN...

  • Page 88: Cable Gland Dimensions

    10 Appendix 10.6 Cable gland dimensions Standard cable screw connection M25x1.5 nickel-plated brass Clamping range 9...20 mm Figure 70: Standard cable screw connection 1 Screw connection base: wrench 2 Pressure ring size 30 3 Universal sealing ring, NBR 4 Pressure ring 5 Dust protection disk 6 Pressure screw;...
  • Page 89 10 Appendix WADI cable screw connection (water-tight; optional) Figure 71: WADI cable screw connection; material: nickel-plated brass; clamping range 13...20 mm Offshore cable screw connection (optional) Figure 72: Offshore cable screw connection; material: stainless steel (V4A); clamping range 9...17 mm BA5831400-00 EN...
  • Page 90 10 Appendix NPT adapters (optional) Figure 73: NPT adapters 1/2" NPT 3/4" NPT BA5831400-00 EN...
  • Page 92 Messko GmbH Gewerbegebiet An den Drei Hasen Messko-Platz 1 61440 Oberursel, Germany +49 (0)6171 6398 0 messko-info@reinhausen.com www.reinhausen.com/messko ® ® BA5831400-00 EN - MESSKO MT-ST Compact / MESSKO MT-ST Compact RM - F0389200 - 04/20 - Messko GmbH 2020 THE POWER BEHIND POWER.

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