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1 Introduction

7

BA5831400-00 EN

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.

► Action

► Action

1.4.1.2 Embedded warning information

Embedded warnings refer to a particular part within a section. These warn-
ings apply to smaller units of information than the warnings relating to sec-
tions. Embedded warnings use the following format:

DANGER!

Instruction for avoiding a dangerous situation.

1.4.1.3 Signal words and pictograms

The following signal words are used:

Signal word

Definition

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.

CAUTION

Indicates a hazardous situation which, if not avoided, could result
in minor or moderate injury.

NOTICE

Indicates measures to be taken to prevent damage to property.

Table 1: Signal words in warning notices

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Содержание MESSKO MT-ST Compact

Страница 1: ...Pointer Thermometer MESSKO MT ST Compact MESSKO MT ST Compact RM Operating Instructions BA5831400 00 EN ...

Страница 2: ...mpensation 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 We reserve the right to change the technical data design and scope of supply Generally the information provided and agreements made when processing the individual quotations and orders are binding The original operating instructions we...

Страница 3: ... 10 2 2 Fundamental Safety Instructions 11 2 3 Personnel qualification 13 2 4 Personal protective equipment 14 3 Product description 16 3 1 Scope of delivery 16 3 2 Function description 16 3 3 Design 18 3 3 1 MESSKO Compact Standard pointer thermometer 18 3 3 2 MESSKO Compact RM pointer thermometer 19 3 3 3 Cable glands adapters 20 3 3 4 Ventilation 21 3 3 5 Temperature sensor 22 3 4 Versions 22 3...

Страница 4: ... 3 4 Inserting the No 7 RM temperature sensor 38 5 3 5 Attaching the step protection optional 39 5 4 Electrical connection 40 5 4 1 Preparation 40 5 4 2 Removing the bayonet seal ring 44 5 4 3 Opening the cover plate 45 5 4 4 Preparing the cables 45 5 4 5 Protective conductor connection 53 5 4 6 Connecting the micro switches 55 5 4 7 Connecting the analog sensor optional TT version 59 5 4 8 Connec...

Страница 5: ...6 1 Resetting drag hands 76 7 Maintenance inspection and care 77 8 Disposal 78 9 Technical data 79 9 1 Ambient conditions 79 9 2 Technical data 79 10 Appendix 83 10 1 Compact pointer thermometer dimensions 83 10 2 Compact RM pointer thermometer dimensions 84 10 3 Temperature sensor 85 10 4 Step protection 86 10 5 Vibration damping plate Mounting plate 87 10 6 Cable gland dimensions 88 ...

Страница 6: ...1 6398 0 E mail messko info reinhausen com Internet www reinhausen com messko Further information on the product and copies of this technical document are available from this address if required 1 2 Completeness This technical file is incomplete without the supporting documents Order confirmation 1 3 Safekeeping Keep this technical file and all supporting documents ready at hand and ac cessible fo...

Страница 7: ...ller units of information than the warnings relating to sec tions Embedded warnings use the following format DANGER Instruction for avoiding a dangerous situation 1 4 1 3 Signal words and pictograms The following signal words are used Signal word Definition DANGER Indicates a hazardous situation which if not avoided will result in death or serious injury WARNING Indicates a hazardous situation whi...

Страница 8: ...nces 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 In this technical file it is laid out as follows Important information 1 4 3 Instruction system This technical file contains single step and multi step instructions ...

Страница 9: ...ments optional 1 Step 1 ð Result of step optional 2 Step 2 ð Result of step optional ð Result of action optional 1 4 4 Typographic conventions The following typographic conventions are used in this technical file Typographic convention Purpose Example UPPERCASE Operating controls switches ON OFF Brackets PC keyboard Ctrl Alt Bold Software operating con trols Press Continue button Menu paths Parame...

Страница 10: ... power engineering If used as intended and in compliance with the requirements and conditions speci fied in this technical document as well as the warning notices contained in this technical document and attached to the product the product does not pose risk of personal injury or damage to property or the environment This applies throughout the entire service life of the product from delivery inst...

Страница 11: ...ment required for the specific task such as a hard hat safety footwear etc must be worn Ob serve the Personal protective equipment Section 2 4 Page 14 sec tion Never wear damaged personal protective equipment Never wear rings necklaces or other jewelry If you have long hair wear a hairnet Work area Untidy and poorly lit work areas can lead to accidents Keep the work area clean and tidy Make sure t...

Страница 12: ...ngs on the product remain intact and legible Replace safety markings that are damaged or missing Ambient conditions To ensure reliable and safe operation the product must only be operated under the ambient conditions specified in the technical data Observe the specified operating conditions and requirements for the in stallation location Modifications and conversions Unauthorized or inappropriate ...

Страница 13: ...e following Can identify potential dangers independently and is able to avoid them Is able to perform work on electrical systems Is specially trained for the working environment in which s he works Must satisfy the requirements of the applicable statutory regulations for accident prevention Electrically trained persons An electrically trained person receives instruction and guidance from an electr...

Страница 14: ...vice reinhausen com Internet www reinhausen com 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 Personal protective equipment...

Страница 15: ... 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 Hearing protection To protect from hearing damage Protective gloves To protect from mechanical thermal and electri cal hazards ...

Страница 16: ...NPT adapters 3 4 14NPT adapters ANSI or M plug connector Step protection only in combination with sensor No 6 VA and sensor No 7 Please note the following Check the shipment against the shipping documents for completeness Store the parts in a dry place until installation The product must remain in the packaging and may only be removed im mediately before installation 3 2 Function description The p...

Страница 17: ...ermometer 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 3 Digital signal converter 4 Transformer fan 5 SCADA 6 Digital display analog display 7 Analog signal converter 8 Pointer thermometer for oil temper ature ...

Страница 18: ...inter thermometer 1 Temperature sensor 2 Capillary line 3 Adapters 4 Vibration damping plate 5 Bayonet seal ring glass pane and gasket 6 Cover plate 7 Calibration screw 8 Drag hand reset 9 Pointer 10 Drag hands 11 Adjustable micro switches 12 Label with serial number The pointer thermometer is calibrated at the factory Do not adjust the calibration screw or else the device s warranty will be voide...

Страница 19: ... 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 9 Pointer 10 Bayonet seal ring 11 Micro switches 12 Drag hands 13 Label with serial number The pointer thermometer is calibrated at the factory Do not adjust the calibration screw or else the device s warranty will be voided ...

Страница 20: ...3 Product description 20 BA5831400 00 EN 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 ...

Страница 21: ...3 Product description 21 BA5831400 00 EN 3 3 4 Ventilation The pointer thermometer features ventilation to prevent the formation of con densate Figure 5 Ventilation ...

Страница 22: ... No 7 sensors Section 10 3 Page 85 3 4 Versions The MESSKO Compact pointer thermometer is available in the following ver sions MESSKO Compact Standard MT ST160SK and MESSKO Compact RM MT ST160RM 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 The mech...

Страница 23: ...erence 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 TT version The pointer thermometer is equipped with a signal converter that depicts the temperature value as an electrical signal 4 2...

Страница 24: ...ety 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 ...

Страница 25: ...3 Product description 25 BA5831400 00 EN 3 6 Nameplate Figure 9 Nameplate ...

Страница 26: ...at none of its parts touch the loading surface of the means of transport or touch the ground after unloading Inlays inside the box or crate stabilize the goods preventing impermissible changes of position and protecting them from vibration 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 hazard...

Страница 27: ...ecision has been made by the transport company or the insurance company Record the details of the damage on site immediately with the transport company involved This is essential for any claim for damages If possible photograph damage to packaging and packaged goods This also applies to signs of corrosion on the packaged goods due to moisture rain snow condensation infiltrating the packaging Make ...

Страница 28: ...gular intervals Also take appropriate action after storms heavy rain or snow etc 4 6 Further transport Use the original product packaging for further transport If you transport the product to the final installation site in a mounted state observe the following information in order to protect the product against me chanical damage due to external influences Transport packaging requirements Select p...

Страница 29: ...Lock the system to prevent an unintentional restart Ensure all poles are de energized Ground and short circuit Cover or cordon off adjacent energized parts CAUTION Risk of injury and damage to the device The measurement system is hermetically sealed If you cut the capillary line harmful liquid can escape and the measurement system will be destroyed Never cut the capillary line NOTICE Damage to the...

Страница 30: ...e information on further transport Section 4 6 Page 28 NOTICE Damage to the device The device can become damaged during transport due to unsuitable pack aging Use suitable packaging for transporting the device in the installed state Protect the device against mechanical damage Prevent the ingress of rain water Ensure sufficient air ventilation without the formation of condensation 5 2 Checking mea...

Страница 31: ...ed 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 When attaching the thermometer to the transformer note the following infor mation Ensure that the pointer thermometer is mounted vertically Figure 10 Mounting position Ensure that the pointer thermomet...

Страница 32: ...rews 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 Drill two holes with a distance of 140 mm 5 51 and a diameter of 9 mm 0 35 into a suitable bracket on the outside of the transformer on the control cabinet mounting plate or on another suitable structure Figure 11 Holes ...

Страница 33: ...gure 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 M12 hexagon screws or cylinder screws as an alternative also 7 16 14 UNC Use a screw length that is appropriate based on the installation situation ...

Страница 34: ...s 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 Figure 13 Holes 2 Attach the pointer thermometer with mounting plate to the transformer Figure 14 Attaching the pointer thermometer with mounting plate ...

Страница 35: ... 1 97 Attach the capillary line to the transformer so that it cannot be damaged during transport or operation due to factors such as impact scuffing pressure vibrations or crushing 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 1 F...

Страница 36: ...mperature 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 Figure 17 Securing the large screw connection ...

Страница 37: ...d 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 dard variant ...

Страница 38: ... 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 ...

Страница 39: ... 3 Page 85 with step protection Figure 20 Step protection 1 Step protection 2 Fixing screw 3 Large screw connection 4 Capillary line 1 Place the step protection on the large screw connection of the tem perature sensor 2 Route the capillary line inside the step protection 3 Tighten the fixing screw of the step protection to the wrench flat of the large screw connection ...

Страница 40: ...em Lock the system to prevent an unintentional restart Ensure all poles are de energized Ground and short circuit Cover or cordon off adjacent energized parts 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 5 4 1 Preparation Observe the following informat...

Страница 41: ...ing the operating site Do not route lines which cause interference e g supply lines and lines susceptible to interference e g signal lines in the same cable duct Maintain a distance of more than 100 mm 3 94 between lines which cause interference and those which are susceptible to interference Figure 21 Recommended wiring 1 Cable duct for lines causing inter ference 3 Cable duct for lines susceptib...

Страница 42: ...rcuit breaker You must protect the mains circuits supply voltage main switching contacts with a miniature circuit breaker The miniature circuit breaker must have the following properties Rated current 6 A Triggering characteristic C Conductor cross section For all mains circuits use a conductor cross section suitable for the minia ture circuit breaker that you have selected but at least 1 5 mm2 AW...

Страница 43: ...he device plug to either only extra low voltage circuits or only low voltage circuits Cable 1 Terminals Cross section 2A current transformer 3 6 1 5 2 5 mm2 16 12 AWG Voltmeter 4 5 1 5 2 5 mm2 16 12 AWG Micro switches 12 11 14 22 21 24 32 31 34 42 41 44 1 5 2 5 mm2 16 12 AWG Analog output 1 5 2 5 mm2 16 12 AWG PE protective conductor connection all other lines Table 5 Recommendation for connection...

Страница 44: ...etting 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 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 ...

Страница 45: ...23 Opening the cover plate 5 4 4 Preparing the cables To prepare the cables correctly proceed as follows 1 Note the cable recommendation 2 Route the connection cable without tension and attach it so that neither the device nor the cable gland is subjected to mechanical stress 3 Remove approx 160 mm 6 3 of the jacket from the cable of the respec tive connection lines strip approx 6 mm 0 24 of the i...

Страница 46: ...a ferrule Figure 24 Stripping the cable jacket and wire insulation example 5 4 4 1 Standard cable gland 1 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 2 Remove the locking screw on the adapter Figure 25 Removing the locking screw ...

Страница 47: ...ove 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 Figure 27 Cable gland Also refer to 2 Cable gland dimensions 88 ...

Страница 48: ...s 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 2 Remove the locking screw on the adapter Figure 28 Removing the locking screw 3 Unscrew the provided cable gland and remove the dust protection disk Figure 29 Removing the dust protection disk ...

Страница 49: ...d tighten the cable gland Figure 30 Cable gland 5 4 4 3 Offshore cable gland stainless steel 1 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 2 Remove the locking screw on the adapter Figure 31 Removing the locking screw ...

Страница 50: ...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 14NPT adapter 1 NOTICE If the adapter is not used equip it with a sealing plug in order to ensure the IP degree of protection ...

Страница 51: ...onduit 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 14NPT adapter 1 NOTICE If the adapter is not used equip it with a sealing plug in order to ensure the IP degree of protection 2 Remove the locking cap Figure 35 Removing the locking cap ...

Страница 52: ...BA5831400 00 EN 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 ...

Страница 53: ...5 4 5 1 Protective conductor connection for devices without plug To connect the pointer thermometer with the protective conductor proceed as follows Equip the protective conductor PE with a forked cable shoe or ferrule and secure it to the protective conductor screw of the pointer thermome ter Figure 37 Connecting the protective conductor to the pointer thermometer 5 4 5 2 Protective conductor con...

Страница 54: ...ust 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 Check the electrical contact of the protective con ductor connection Figure 38 Connecting the protective conductor to the pointer thermometer ...

Страница 55: ...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 Connect the wires to the terminal strip in accordance with the connec tion diagram Figure 39 Connecting the micro switches 1 Connection diagram 2 Terminal strip ...

Страница 56: ...n 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 The cable may not rotate while this is happening Figure 40 Connecting the M plug 2 NOTICE Interruption of the plug connection If the connection cable is not routed and secured sufficiently the...

Страница 57: ...nection assignment view of installed M plug 1 Coding contour A Black B Red C Blue D Orange E Yellow F Brown G Red black H Blue black I Orange black J Yellow black K Brown black L Black red M N 5 4 6 3 Connecting the micro switches using the ANSI 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 plu...

Страница 58: ...h the plug connector onto the device plug hold the ca ble and turn the threaded cap clockwise to the stop The cable may not ro tate while this is happening Figure 42 Connecting the ANSI plug 2 NOTICE Interruption of the plug connection If the connection cable is not routed and secured sufficiently the plug connector can be ripped out of the housing plug Secure the connection cable sufficiently and...

Страница 59: ... diagram Figure 43 Connection assignment view of installed ANSI connector 1 Black 2 Red 3 Blue 4 Orange 5 Yellow 6 Brown 7 Red black 8 Blue black 9 Orange black 5 4 7 Connecting the analog sensor optional TT version The pointer thermometer is equipped with a passive sensor that converts the temperature value into a 4 20 mA electrical signal The sensor has a 2 conductor design ...

Страница 60: ...th driving input 12 30 V DC or if neces sary an additional power supply 24 V DC 5 4 8 Connecting cable glands NPT adapters NOTICE Damage to the device If you do not use any locking screws or if you use the wrong ones the IP55 degree of protection cannot be guaranteed Dirt or moisture can pene trate and cause damage to the device Seal unneeded cable glands NPT adaptors with suitable locking screws ...

Страница 61: ...clockwise can damage the device Only turn the pointer clockwise 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 1 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 Check the function here and...

Страница 62: ...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 Move the micro switches clockwise past the pointer individually and in succession and check the function If necessary connect a continuity tester to the terminal strip to do so Figure 47 Moving the micro switches past the pointer ...

Страница 63: ...5 Installation and commissioning 63 BA5831400 00 EN 2 Set the micro switches back to their original value ...

Страница 64: ...e connecting the current transformer Section 5 7 Page 73 The pointer thermometer is set at the factory as follows Parameters Setting Nominal secondary transformer current 2 A Temperature gradient 17 K Nominal heating current for MT ST160W 1 A Nominal heating resistance for MT ST160WR 6 Ω Table 6 Factory settings If the temperature gradient of the transformer deviates from this factory set ting you...

Страница 65: ...onship 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 I I W H P R1Ω V 6 5 4 3 Figure 48 Circuit IW Secondary transformer current IH Heating current P Potentiometer V Voltage measurement ...

Страница 66: ... 1 3 1 4 1 5 1 6 30 K 40 I gr H 35 A Figure 49 Setting curve gr Temperature gradient IH Heating current Example Temperature read 30 C Required temperature gradient 20 K Required display temperature 30 C 20 K 50 C Nominal secondary transformer current 2 0 A Heating current from setting curve 1 1 A Setting temperature gradients ü Make sure that the temperature on the temperature sensor remains con s...

Страница 67: ... g 2 A on the current source Determining the heating current ü The value of the temperature gradient is specified by the transformer manufacturer e g gr 20 K 1 Read the associated value for the heating current from the setting curve desired value 1 1 A in this example 2 Determine the voltage at terminals and using a high impedance voltmeter ð The numerical value of the measured voltage in V corres...

Страница 68: ...ired temperature increase In this example the tempera ture of the temperature sensor 30 C should be increased by the temper ature gradient of 20 K thus resulting in 50 C being displayed Take the heating and cooling time of approx 15 minutes into account ð If the desired temperature value is not reached after approx 30 min utes adjust the temperature gradient on the potentiometer again 5 After sett...

Страница 69: ...an ohmmeter This resistance can be adjusted by setting the poten tiometer P I I W H P 6 3 5 4 Figure 52 Circuit IW Secondary transformer current IH 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 ...

Страница 70: ...nd results from the following setting curves gr R 0 10 20 30 K 50 4 2 5 0 6 0 7 0 8 0 9 0 10 0 2 2 A 2 1 A 2 0 A 1 9 A 1 8 A 1 7 A 1 6 A 1 5 A IW K Ω Figure 53 Resistance setting curve gr Temperature gradient R Resistance of the heating circuit IW Nominal secondary transformer current Example Nominal secondary transformer current 1 9 A Required gradient 26 K Resistance value from setting curve 8 6...

Страница 71: ... example 2 Remove the bridge at terminals and Figure 54 Bridge 3 Connect an ohmmeter to terminals and 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 55 Potentiometer adjusting screw ...

Страница 72: ...he 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 3 Connect a current source to terminals and of the thermometer Set the nominal secondary transformer current specified by the transformer manufacturer e g 1 9 A on the current source 4 Wait until the temperature display stops chang...

Страница 73: ...ent transformer to prevent this Ground the current transformer on one side Observe the information in the current transformer operating instruc tions 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 MULTI BALLAST Follow the corresponding operating instructions when doing so Conn...

Страница 74: ...oning 74 BA5831400 00 EN Connect the current transformer CT to terminals and 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 ...

Страница 75: ...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 clockwise so that the view ing glass is pressed firmly into the rubber gasket all the way around Figure 59 Positioning the bayonet seal ring ð The pointer thermometer is ready for operation ...

Страница 76: ...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 ð The drag hand and pointer are positioned one above the other Figure 60 Resetting drag hands ...

Страница 77: ...ance or the inspection intervals specified by the transformer manufacturer During occasional visual inspections of the transformer you can inspect and clean the device as follows 1 Clean the housing of the device with a dry cloth 2 Make sure 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...

Страница 78: ...8 Disposal 78 BA5831400 00 EN Observe the national disposal regulations in the country of use ...

Страница 79: ...er thermometer for oil temperature Pointer thermometer for winding temperature Compact measuring range 20 140 C 0 160 C Compact RM measuring range 0 120 C 0 160 C 0 160 C 0 180 C Tolerance 3 C in accordance with DIN EN 13190 Class 1 and DIN 16196 Basic materials Front ring and housing Steel plate galvanized coated RAL 7033 Viewing glass Laminated safety glass Temperature sensor Brass bare Mounting...

Страница 80: ...rement cell Supply voltage DC 12 30 V unregulated max 10 residual rip ple protected against polarity reversal Output signal 4 20 mA 2 conductor wiring Max load resistance e g 750 Ω at Ub 24V DC Repetition accuracy 0 1 from the end value Maximum load resistance 750 150 50 10 25 15 20 30 5 12 24 R Ω L B U V Operating range R Ω L UB 9 V 20 mA Figure 61 Maximum load resistance Connection terminals Con...

Страница 81: ...micro switches Utilization cate gory in accor dance with IEC 60947 5 1 Typical application Rating nominal operation UN IN AC 12 Regulation of resistive and semi con ductor load with disconnection by opto coupler 230 V 5 A AC 15 Regulation of electromagnetic load with AC voltage 230 V 0 26 A 120 V 0 5 A 24 V 2 A DC 12 Regulation of resistive and semi con ductor load with disconnection by opto coupl...

Страница 82: ...range Figure 62 Switch arrangement 1 2 tight 1 K For standard version 1 K min 6 min 6 Red 1 Blue 2 Green 3 Yello w 4 of measuring range Figure 63 Switch arrangement 3 4 tight 1 K 1 K min 12 Red 1 Blue 2 Green 3 Yello w 4 1 K of measuring range Figure 64 Switch arrangement 1 2 and 3 4 and tight 1 K ...

Страница 83: ...10 Appendix 83 BA5831400 00 EN 10 1 Compact pointer thermometer dimensions Figure 65 MESSKO Compact ...

Страница 84: ...10 Appendix 84 BA5831400 00 EN 10 2 Compact RM pointer thermometer dimensions Figure 66 MESSKO Compact RM ...

Страница 85: ...10 Appendix 85 BA5831400 00 EN 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 ...

Страница 86: ...10 Appendix 86 BA5831400 00 EN 10 4 Step protection Figure 68 Step protection only in combination with sensor No 6 VA and sensor No 7 ...

Страница 87: ...x 87 BA5831400 00 EN 10 5 Vibration damping plate Mounting plate Figure 69 Dimensional drawing for vibration damping plate and mounting plate 1 Vibration damping plate Compact standard 2 Mounting plate Compact RM ...

Страница 88: ...cable screw connection M25x1 5 nickel plated brass Clamping range 9 20 mm Figure 70 Standard cable screw connection 1 Screw connection base wrench size 30 2 Pressure ring 3 Universal sealing ring NBR 4 Pressure ring 5 Dust protection disk 6 Pressure screw wrench size 28 ...

Страница 89: ...ection 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 ...

Страница 90: ...10 Appendix 90 BA5831400 00 EN NPT adapters optional Figure 73 NPT adapters 1 2 NPT 3 4 NPT ...

Страница 91: ......

Страница 92: ...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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