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MR MESSKO MTRAB DB200D-T Operating Instructions Manual

Dehydrating breather
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THE POWER BEHIND POWER.
Operating instructions
®
®
MESSKO
MTRAB
. Dehydrating breather
6820378/05 EN . Version 2.5

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Summary of Contents for MR MESSKO MTRAB DB200D-T

  • Page 1 THE POWER BEHIND POWER. Operating instructions ® ® MESSKO MTRAB . Dehydrating breather 6820378/05 EN . Version 2.5...
  • Page 2 Generally the information provided and agreements made when processing the individual quotations and orders are binding. The product is delivered in accordance with MR's technical specifications, which are based on information provided by the customer. The customer has a duty of care to ensure the compatibility of the specified product with the customer's planned scope of application.

  • Page 3: Table Of Contents

    Table of contents Introduction .............. 7 Manufacturer ................... 7 Completeness .................. 7 Subject to change without notice ............ 7 Safekeeping ..................... 8 Notation conventions................ 8 1.5.1 Hazard communication system............. 8 1.5.2 Information system................. 9 1.5.3 Instruction system .................. 9 1.5.4 Typographic conventions.............. 10 Safety................ 11 General safety information .............. 11 Appropriate use..................
  • Page 4 Connecting the RS485 interface and configuring Modbus (optional) ..  68 6.9.1 4-conductor full duplex ...............  69 6.9.2 2-conductor half duplex...............  70 6.9.3 Notes on connecting to the MR sensor bus........ 71 6.9.4 MESSKO® MTRAB® 2.5................ 75 6.9.5 Modbus settings.................. 77 6.10 Closing the terminal box .............. 78...
  • Page 5 6.11 Additional device grounding ...............  80 6.12 Dielectric test.................. 81 6.13 Ground test...................  82 Commissioning ............ 84 Device self test during commissioning .......... 85 Adjusting Modbus settings .............. 86 Establishing a connection with the app (optional with NFC and Bluetooth®) ...................  86 Operation..............
  • Page 6 13.2 6356077 .................... 128 13.3 6367297.................... 129 13.4 6600056.................... 130 13.5 6600296.................... 131 13.6 6368543 .................... 132 13.7 6356099 .................... 133 Appendix.............. 134 14.1 Modbus RTU.................. 134 14.2 RS485 communication settings ............ 136 Glossary .............. 137 6  Table of contents 6820378/05 EN...

  • Page 7: Introduction

    Deutschland +49 941 4090-0 sales@reinhausen.com 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 document is incomplete without the following documentation: –...

  • Page 8: Safekeeping

    The document number and version number of this technical file are shown in the footer. 1.4 Safekeeping Keep this technical file and all supporting documents ready at hand and ac- cessible for future use at all times. 1.5 Notation conventions This section contains an overview of the symbols and textual emphasis used.

  • Page 9: Information System

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

  • Page 10: Typographic Conventions

    Multi-step instructions Instructions which consist of several process steps are structured as follows: Aim of action Requirements (optional). 1. Step 1. Result of step (optional). 2. Step 2. Result of step (optional). Result of action (optional). 1.5.4 Typographic conventions Typographic convention Purpose Example UPPERCASE...

  • Page 11: 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 document through carefully to familiarize yourself with the product. – This technical document is a part of the product. –...

  • Page 12: Inappropriate Use

    If used as intended, in compliance with the requirements and conditions specified in this technical document and observing the warning notices in this technical document and attached to the product, the product does not pose a risk of injury or damage to property or the environment. This applies throughout the service life of the product, from delivery, installation and op- eration to removal and disposal.
  • Page 13 Personal protective equipment Loosely worn or unsuitable clothing increases the danger of becoming trapped or caught up in rotating parts and the danger of getting caught on protruding parts. This results in danger to life and limb. – All necessary devices and personal protective equipment required for the specific task, such as a hard hat, safety footwear, etc.

  • Page 14: Personnel Qualification

    Modifications and conversions Unauthorized or inappropriate changes to the product may lead to personal injury, material damage and operational faults. – Only modify the product after consultation with the manufacturer. Spare parts Spare parts not approved by the manufacturer may lead to physical injury and damage to the product.

  • Page 15: Personal Protective Equipment

    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 a repair is not carried out by our Technical Service department, please ensure that the personnel who carry out the maintenance are trained and authorized by Maschinenfabrik Reinhausen GmbH to carry out the work.
  • Page 16 Hard hat To protect against falling and flying parts and materials. Hearing protection To protect against hearing damage. Protective gloves To protect against mechanical, thermal and electrical haz- ards. Table 3: Personal protective equipment 16  Safety 6820378/05 EN...

  • Page 17: Product Description

    3 Product description This chapter contains an overview of the design and function of the product. The dehydrating breather is mounted using a flange as standard with the op- tion of 2 side mounting rods on the pipe for venting and dehydrating the oil conservator.

  • Page 18: Design/Versions

    3.2 Design/versions Figure 1: Design 1 DB100 2 2-hole RM flange*) 3 4-hole circular flange*) 4 DIN flange*) 5 DB200G (not as an offshore version, 6 DB200D not with NFC and Bluetooth®) 18  Product description 6820378/05 EN...

  • Page 19: Function Description

    7 DB200 8 Protective grate (optional) 9 Additional fastening points on the side (optional) *) For details, see the technical data and dimensional drawings 3.3 Function description The dehydrating breather is used in oil-insulated transformers, reactors or tap changers for dehydrating the air sucked into oil conservators. Figure 2: Overview 1 Upper air spout 2 Lock nut...
  • Page 20 7 Sensor cable and cable protection 8 Terminal box (lacquer color config- (optional) urable) 9 Position of the NFC antenna (option- 10 Desiccant container ally with NFC and Bluetooth®) 11 Lower metal flange 12 Dust protection tube with insect protection grille (optional) or with fil- ter heating (optional HT version) For illustrations of the various designs, see Dimensional drawings.

  • Page 21: Terminal Box

    3.4 Terminal box Figure 3: Terminal box 1 LEDs for status display 2 RTC buffer battery (type CR2032) 3 USB service interface (B socket) 4 Test button 5 Modbus settings (optional) 6 Fuse 7 Supply voltage 8 Cable gland 100...127 V DC/AC 50/60 Hz M20x1.5 (brass/stainless steel) or 200...240 V DC/AC 50/60 Hz 1/2″...

  • Page 22: Controller For Silica Gel Heating

    9 Signaling relay 10 Analog output 1 (temperature) Analog output 2 (humidity) 0…20 mA or 4…20 mA 11 RS485 interface (optional) Figure 4: Cover of the terminal box with NFC and Bluetooth® extension circuit board 1 NFC and Bluetooth® extension cir- cuit board (optionally with NFC and Bluetooth®) 3.5 Controller for silica gel heating The dehydrating breather is delivered with an alpha controller, beta controller...

  • Page 23: Status Leds

    Refer to the chapter "Applications table" for the recommended application areas for the different versions of the dehydrating breather. 3.6 Status LEDs There are 3 LEDs on the front of the terminal box that indicate the status of the device. Figure 5: LEDs 1 Operating status –...

  • Page 24: Self-Monitoring Function

    3.7 Self-monitoring function The dehydrating breather has a self-monitoring function. If an error occurs in the device, this is indicated by the different lighting patterns of the LEDs on the front of the terminal box, and also output via the signaling relay. The following errors are detected: –...

  • Page 25: Filter Heater (Ht Version) (Optional)

    Information on the device status, e.g. a detailed status description and er- ror description with recommendations for action – Report generation and the ability to forward the report to MR Support – GPS position of the location where data is being read from the device You can use both the NFC interface and the Bluetooth®...

  • Page 26: Test Button

    NFC and Bluetooth® are not available for the DB200G version. 3.11 Test button The test button can be used to force a device test to be performed (see the chapter "Test button"). 3.12 Safety markings and nameplate Figure 6: Safety markings 26  Product description 6820378/05 EN...
  • Page 27 Risk of burns! See the chapter "Operation" Warning symbol on the nameplate: Danger! Observe notices in the operating instructions re- garding supply voltage; see nameplate in the chapter "Com- missioning" Sticker on the dust protection tube: Remove the protective cap! See the chapter "Removing the red protective cap"...

  • Page 28: 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 29: Markings

    4.3 Markings The packaging bears a signature with instructions for safe transport and cor- rect storage. The following symbols apply to the shipment of non-hazardous goods. Adherence to these symbols is mandatory. Protect against Fragile Attach lifting Center of mass moisture gear here Table 4: Shipping pictograms...
  • Page 30 Visible damage If external transport damage is found upon receipt of the shipment, proceed as follows: – Immediately record the transport damage found in the shipping docu- ments and have this countersigned by the carrier. – In the event of severe damage, total loss or high damage costs, immedi- ately notify the sales department at Maschinenfabrik Reinhausen GmbH and the relevant insurance company.

  • Page 31: Storage Of Shipments

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

  • Page 32: Unpacking

    4.7 Unpacking To remove the DB100 / DB200 dehydrating breather from the packaging, proceed as follows: 1. Remove the DB100 / DB200 from the packaging as shown in the image. 2. Place on an open, flat surface so that the glass cylinder of the desiccant container is exposed.
  • Page 33 To remove the DB200D / DB200G dehydrating breather from the packaging, proceed as follows: 1. Grasp the connection pipe and both air exhausts on the DB200D / DB200G as shown in the image. Figure 8: DB200D / DB200G removal 2. Work in pairs to remove the DB200D / DB200G from the shipping con- tainer.
  • Page 34 Figure 9: Setting down the DB100 / DB200 Figure 10: Setting down the DB200D / DB200G 34  Packaging, transport and storage 6820378/05 EN...

  • Page 35: Mounting

    5 Mounting This chapter describes how to correctly mount the device. CAUTION Risk of injury! Risk of injury due to shattered glass cylinder of the desiccant container as the result of mechanical tension or jolts! Wear safety gloves during assembly in addition to the protective equip- ment that must always be worn.
  • Page 36 – Ensure that the pipes are not horizontal. – Prevent the pipe from dipping between the dehydrating breather and the expansion tank. – Prevent any sources of interference in the pipe between the dehydrating breather and the expansion tank (conventional dehydrating breather, non- return valves, etc.).
  • Page 37 Figure 13: Parallel installation – Do not install the dehydrating breather close to a sprinkler system that sprays upwards from below. – Only place spray water nozzles to the side and above the condensate out- let. – Do not clean the dehydrating breather with spray water from below. 6820378/05 EN Mounting  37...
  • Page 38 Figure 14: Sprinkler system and spray water 38  Mounting 6820378/05 EN...

  • Page 39: Checking The Connecting Flange On The Transformer

    5.2 Checking the connecting flange on the transformer 1. Check counterflange. It must be flush and even. Permitted evenness devia- tion ≤ 0.2 mm. 2. Check the sealing surface of the counterflange. It must be clean and un- damaged, without any surface damage radiating out from the center. The surface quality of the sealing surface must be suitable for use of the gas- ket.
  • Page 40 Figure 16: Nut on the upper air spout To prepare the dehydrating breather for mounting, proceed as follows: 1. Remove the red protective cap from the upper air intake spout. 2. Check that there is a gasket in the air intake spout. Figure 17: Protective cap and gasket 3.
  • Page 41 NOTICE Danger of damage to property If a flange is used that is unsuitable for the weight of the device, the flange may fail. Only use the 2-hole RM flange for the DB100. Figure 18: Inserting the flange 6820378/05 EN Mounting  41...
  • Page 42 4. Screw the flange onto the dehydrating breather by hand (approx. 1 Nm). Figure 19: Screwing on the flange 5. For lifting the DB100 / DB200, replace the grounding screw with a lifting eye bolt. Figure 20: Lifting eye bolt 42  Mounting 6820378/05 EN...

  • Page 43: Mounting The Device On The Counterflange

    5.4 Mounting the device on the counterflange WARNING Danger of death and damage to property! Danger of death and damage to property due to falling load! Do not walk under the suspended load. Use a means of transport and lifting gear with sufficient carrying capacity. NOTICE Malfunction! The connection may not be correctly sealed if there is grease on the flange...
  • Page 44 To mount the dehydrating breather on the counter-flange, proceed as fol- lows: 1. Lift and upright the DB200D / DB200G with the help of a second person. Each person should have one hand on the air exhaust and one hand on the connection pipe.
  • Page 45 2. Lift and upright the DB100 / DB200 as shown in the image. Figure 22: Lifting and uprighting the DB100 / DB200 3. Attach the lifting gear to the lifting eye bolt or pipe connection. Figure 23: Lifting gear 6820378/05 EN Mounting  45...

  • Page 46: Inserting The Flange Gasket

    5.4.2 Inserting the flange gasket 1. Insert the flange gasket. Figure 24: Flange gasket 46  Mounting 6820378/05 EN...

  • Page 47: Screwing On The Flanges

    5.4.3 Screwing on the flanges DIN flange (optional) 1. Screw the dehydrating breather to the transformer counter-flange using the flange (mounting materials contained in the scope of delivery). Figure 25: Screw connection 2. Tighten each screw in turn with approximately 24 Nm. 3.
  • Page 48 6. Tighten each screw again with approximately 80 Nm. Figure 26: Screws of DIN flange 48  Mounting 6820378/05 EN...
  • Page 49 4-hole circular flange (optional) 1. Screw the dehydrating breather to the transformer counter-flange using the flange (mounting materials not contained in the scope of delivery). Figure 27: Screws of 4-hole round flange 2. Tighten the screws crosswise with approx. 30% of the torque. 3.
  • Page 50 2-hole RM flange (optional) 1. Screw the dehydrating breather to the transformer counter-flange using the flange (mounting materials not contained in the scope of delivery). Figure 28: Screws of 2-hole RM flange 2. Tighten each screw in turn with approx. 30% of the torque. 3.

  • Page 51: Aligning The Device

    5.4.4 Aligning the device Aligning the device: 1. Align the device as desired using the double screw connection after mounting. Figure 29: Alignment of dehydrating breather 5.4.5 Tightening the double screw connection Tightening the double screw connection on the DB100 / DB200: 1.
  • Page 52 Tightening the double screw connection on the DB200D / DB200G: 1. Hold the screw connection on the upper air spout and tighten the locknut on the flange with 250 Nm. 2. Make sure that the lower screw connection is not loosened from the de- vice during assembly.

  • Page 53: Removing The Lifting Gear Again

    5.4.6 Removing the lifting gear again 1. Remove the lifting gear again carefully. For DB100 / DB200, replace the lifting eye bolt with the grounding screw including washer. Figure 31: Grounding screw 5.5 Removing the red protective cap NOTICE Dehydrating breather malfunction! The red protective cap blocks air exchange during operation of the dehydrat- ing breather! Make sure that the red protective cap is removed from the dust protection...
  • Page 54 1. Remove the red protective cap from the dust protection tube on the bot- tom of the device. Figure 33: Red protective cap 54  Mounting 6820378/05 EN...

  • Page 55: Electrical Connection

    6 Electrical connection This chapter describes the correct electrical connection of the device. Ob- serve the following hazard notices prior to opening the device: DANGER Electric shock! Risk of fatal injury due to electrical voltage. Always observe the following safety regulations when working in or on electrical equipment.

  • Page 56: Wiring Requirement Of Installation Site

    6.1.1 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. 6.1.2 Wiring requirement of operating site Note the following when wiring the operating site: –...

  • Page 57: Cable Recommendation

    Miniature circuit breaker You must fuse the power supply circuit with a miniature circuit breaker. The miniature circuit breaker must have the following properties: – Rated current: 16 A or 20 A – Triggering characteristic: C, K, Z Conductor cross-section For the power supply circuit, use a conductor cross-section suitable for the miniature circuit breaker that you have selected, but at least 1.5 mm (AWG 15).

  • Page 58: Routing And Preparing The Cable

    Cable Terminal Cable type Cross-section Protective conductor Unshielded >= cross-section of (PE) connection the voltage supply terminal 2 (L+) and terminal 3 (N-) Voltage supply 2 (L/+), 3 (N/-) Unshielded 1.5…4 mm² / AWG 11…15 Regeneration signaling 4, 5, 6, 7, 8, 9 Unshielded 1.5…4 mm²...
  • Page 59 To prepare the cable correctly, proceed as follows: 1. Open the terminal box of the dehydrating breather. To do so, unscrew the 4 captive screws on the housing cover. The cover is held on the left-hand side by spring hinges and can be swung open to the left. The cover of the terminal box is grounded with a grounding cable.
  • Page 60 3. Remove the cable jacket from the relay and analog output cables and strip 7 mm (1/4″) of insulation from the wires 4. Unscrew the leftmost of the three cable glands. Figure 36: Unscrewing the cable gland 60  Electrical connection 6820378/05 EN...
  • Page 61 5. Insert a sufficient length of cable through the cable gland and rubber gas- ket and tighten the cable gland so that moisture from outside cannot pen- etrate the terminal box. Figure 37: Closing the cable gland NOTICE Malfunction Tightening the cable glands too tightly may result in line breaks and short cir- cuits.

  • Page 62: Connecting The Supply Voltage

    6.5 Connecting the supply voltage In order to connect the cable for the supply voltage, proceed as follows: 1. Insert the wire for the protective conductor into terminal 1 (PE) and tighten the screw terminal. 2. Insert the wire for the phase/plus into terminal 2 (L+) and tighten the screw terminal.
  • Page 63 The cable of the PE connection must be suitable for the cross-section of the power supply terminals 2 (L+) and 3 (N-). An installation specialist must check the connection for conductivity with a meter. 2-conductor technology If only power supply terminals 2 (L+) and 3 (N-) are to be connected, use a toothed washer between the housing and the lower O-ring.

  • Page 64: Connecting The Regeneration Signaling Relay

    6.6 Connecting the regeneration signaling relay WARNING Electric shock! The regeneration and device error signaling contacts may both be operated either with safety extra-low voltage (SELV) or with low voltage. For electrical safety reasons, mixed operation with both SELV and low voltage is not permitted. In order to connect the cable for transmitting the regeneration signal (changeover contact), proceed as follows: 1.

  • Page 65: Connecting The Device Error Signaling Relay

    6.7 Connecting the device error signaling relay WARNING Electric shock! The regeneration and device error signaling contacts may both be operated either with safety extra-low voltage (SELV) or with low voltage. For electrical safety reasons, mixed operation with both SELV and low voltage is not permitted. In order to connect the cable for transmitting the device error signal (NC con- tact, failsafe), proceed as follows: 1.

  • Page 66: Connecting Analog Outputs

    6.8 Connecting analog outputs Analog 1 (left) Analog 2 (right) Temperature Humidity The analog outputs are active outputs. Observe the load resis- tance of 0...600 Ω. To connect the cable for transmitting analog signal 1 for the temperature, proceed as follows: 1.
  • Page 67 The analog output signal is a 4…20 mA signal by default (0… 20 mA optional). 6820378/05 EN Electrical connection  67...

  • Page 68: Connecting The Rs485 Interface And Configuring Modbus (Optional)

    6.9 Connecting the RS485 interface and configuring Modbus (optional) The dehydrating breather can be connected to a SCADA system via the RS485 interface. This is designed as a 4-conductor system (full duplex), but can also be integrated into a 2-conductor system (half duplex). RS485 interface assignment for Modbus RTU PINs 4-conductor system...

  • Page 69: 4-Conductor Full Duplex

    6.9.1 4-conductor full duplex Figure 43: 4-conductor system To connect the cables for integration into a 4-conductor system, proceed as follows: 1. Insert the wire for Rx+ into screw terminal "1 Rx+" and tighten. 2. Insert the wire for Rx- into screw terminal "1 Rx-" and tighten. 3.

  • Page 70: 2-Conductor Half Duplex

    6. Twist the shielding, insert it into the "Shield" terminal and tighten. Figure 44: Connecting the full-duplex cable 6.9.2 2-conductor half duplex Figure 45: 2-conductor system 70  Electrical connection 6820378/05 EN...

  • Page 71: Notes On Connecting To The Mr Sensor Bus

    6.9.3 Notes on connecting to the MR sensor bus The optionally available MR sensor bus function lets you connect digital and analog sensors to the device over Modbus RTU. The MR sensor bus supports the connection of up to 31 sensors (Modbus slaves). The ISM® device oper- ates as the Modbus master.
  • Page 72 MR sen- sor bus. – The MR sensor bus uses Modbus in a 2-wire configuration (2W). The 4- wire configuration (4W) is not supported. – You must connect the sensors via a shielded line with 3 conductors (D0, D1, Common).
  • Page 73 D0 (A+) D0 (A+) D1 (B-) D1 (B-) Sensor 1 Com. (C) D0 (A+) D1 (B-) Sensor x Com. (C) D0 (A+) 120 Ω D1 (B-) Figure 47: Connection example MR sensor bus to CPU I/II-COM2 with optional transfer module. 6820378/05 EN Electrical connection  73...
  • Page 74 D0 (A+) D0 (A+) Com. (C) Com. (C) Sensor 1 Com. (C) D0 (A+) D1 (B-) Sensor x Com. (C) D0 (A+) 120 Ω D1 (B-) Figure 48: Connection example MR sensor bus to CPU-X4 with optional transfer module. 74  Electrical connection 6820378/05 EN...

  • Page 75: Messko® Mtrab® 2.5

    6.9.4 MESSKO® MTRAB® 2.5 If you would like to use a MESSKO® MTRAB® 2.5 sensor, you must connect the sensor to the RS485 plug terminals on the sensor bus. CPU-COM2 Com. (C) D0 (A+) D1 (B-) MESSKO® MTRAB® 2.5 D+ | Rx+ D- | Rx- Shield Comm...
  • Page 76 You must enable the half-duplex operating mode on the sensor by switching the "Duplex mode" switch to the "HALF" setting. If the MESSKO® MTRAB® 2.5 sensor is the only bus device or the last bus device, you must activate the sensor terminating resistor by switching the "BUS termination 120 ohms"...

  • Page 77: Modbus Settings

    6.9.5 Modbus settings Figure 51: RS485 settings Half-duplex or full-duplex operation To set the dehydrating breather for half-duplex operation, proceed as follows: Set the "Duplex mode" switch to the "HALF" position. To set the dehydrating breather for full-duplex operation, proceed as follows: Set the "Duplex mode"...

  • Page 78: Closing The Terminal Box

    Changing the Modbus address of the device The Modbus address of the device is set to 3 (ADR switch position 3) as stan- dard. In this setting, the transmission speed is 19,200 baud and the parity is "EVEN". The Modbus address of the device can be changed via the "ADR" switch (see the chapter "RS485 communication settings").
  • Page 79 1. Ensure that the grounding cable to the housing cover is not damaged when closing the terminal box. Figure 53: Visual inspection 6820378/05 EN Electrical connection  79...

  • Page 80: Additional Device Grounding

    2. Set the cover of the terminal box properly on the bottom of the housing. If necessary, grease the four housing screws (e.g. with Autol TOP 2000) and then tighten them. Figure 54: Closing the terminal box cover If necessary, also grease the four socket screws on the sensor unit (e.g.

  • Page 81: Dielectric Test

    Figure 55: Additional grounding point 6.12 Dielectric test NOTICE Damage to the device! Incorrect test voltage can cause damage to the device. Carry out dielectric testing with a maximum of 500 V DC. Prepare the test device. De-energize the dehydrating breather. 6820378/05 EN Electrical connection  81...

  • Page 82: Ground Test

    1. Conduct a test between the protective conductor (PE) at terminal 1 and neutral conductor (N-) at terminal 3. 2. Conduct a test between the protective conductor (PE) at terminal 1 and phase (L+) at terminal 2. Figure 56: Dielectric test If the device is not operated in the European Community, the national regulations for conducting the dielectric test in the re- spective country of use must be observed.
  • Page 83 To perform the ground test, proceed as follows: 1. Feed the test current in at the fixing screw of the grounding cable using a constant current source and measure the voltage between the measure- ment point and the protective conductor connection at terminal 1. The measured voltage must remain less than 10 V for a period of 1 minute.

  • Page 84: Commissioning

    7 Commissioning NOTICE Damage to the device! Damage to the electronics of the dehydrating breather due to incorrect sup- ply voltage! Make sure that the correct supply voltage in accordance with the name- plate is present on the energized miniature circuit breaker. Switch on supply voltage using an external isolating device.

  • Page 85: Device Self Test During Commissioning

    7.1 Device self test during commissioning The dehydrating breather LED signaling during commissioning is explained in the following. Observe the following legend for the respective LED state. Figure 59: LED legend 1 LED lights up 2 LED flashing 3 LED off The device performs a device self-test (approx.

  • Page 86: Adjusting Modbus Settings

    After concluding the self-test, the green power LED remains constantly lit. If an error was detected, this is displayed via the LEDs (see the chapter "Error messages and troubleshooting"). Figure 61: Error-free operation An extended test triggered by the user can be started using the test button (see the chapter "Test button").
  • Page 87 The QR code is affixed to the inside of the device, included in the operating instructions and depicted on the factory certification. In addition, by provid- ing the serial number of the device, MR Support can reissue the QR code. Verification is valid for 2 years. For verification, proceed as follows: 1.
  • Page 88 NOTICE!  The device also activates Bluetooth® during the short test. 1. Briefly press the test button on the device (≤3 seconds). The short test starts and the Bluetooth® interface will be activated 2. Establish a Bluetooth® connection within the app. Reading out data via NFC-enabled smartphone The position of the NFC antenna of the smartphone used is known.

  • Page 89: Operation

    8 Operation During error-free operation, the green power LED is constantly lit and the red error LED is off. Figure 62: Error-free operation If the LED and/or LED issues a lit and flashing signal and the device malfunction LED is off, observe the information in the chapter "Status messages".
  • Page 90 CAUTION Slipping hazard! Danger to health! In case of temperatures at or below freezing, any escaping condensation can lead to icy ground beneath the device. In this case, do not step under the device. NOTICE Malfunction due to contaminated silica gel Prevent the silica gel becoming contaminated due to direct contact with the insulating fluid.

  • Page 91: Gamma Controller (Db200G Only)

    If the fuse fails, it can be easily replaced (see the chapter "Fuse"). If it happens again, please consult MR Service & Complaint. A device version is available that eliminates the occurrence of overvoltages. Overvoltage protection can also be retrofitted by replacing a circuit board.
  • Page 92 Figure 64: Ball valve 1 Switch 2 Ball valve 3 Display 4 Ball valve control cable 92  Operation 6820378/05 EN...

  • Page 93: Error Messages And Troubleshooting

    9 Error messages and troubleshooting Before opening the terminal box or when checking the cables and sensors, always observe the following safety information: WARNING Electric shock Risk of fatal injury due to electrical voltage. De-energize the device and system peripherals and take measures to en- sure that they cannot be switched back on.
  • Page 94 If an error occurs that you cannot remedy yourself, please contact: Maschinenfabrik Reinhausen GmbH MR Service & Complaint Falkensteinstrasse 8 93059 Regensburg Germany E-mail: service@reinhausen.com E-mail: complaint@reinhausen.com Using the self-monitoring function, the device identifies internal errors and signals them by illuminating and flashing LEDs in different ways.
  • Page 95 Figure 65: LEDs 1 LED green 2 LED yellow Optionally with NFC and Bluetooth®: LED yellow/blue 3 LED red 6820378/05 EN Error messages and troubleshooting  95...

  • Page 96: Error Messages

    9.1 Error messages The individual errors and possible corrective actions are listed in the following table. If a suitable corrective action cannot be found in this table, please con- tact MR Service & Complaint. Error Action green yel- Dehydrating breather not...
  • Page 97 Error Action green yel- Internal error General device error. Contact MR Service & Complaint. Left-hand position ball Check whether the ball valve switch valve error (DB200G only) is in the "AUTO" position. Check both cables to the ball valve Right-hand position ball (see "Gamma controller"...
  • Page 98 Figure 66: Tests 1 Filter-heater supply cable (optional / 2 Test button HT version only) 3 Silica-gel heating supply cable 4 Sensor cable socket 5 Sensor cable gland 6 Sensor cable 98  Error messages and troubleshooting 6820378/05 EN...

  • Page 99: Status Messages

    = LED ON = LED FLASHING 9.3 Fuse If the fuse fails again, please consult MR Service & Complaint. A device version is available that eliminates the occurrence of overvoltages. Overvoltage protection can be retrofitted by re- placing a circuit board.
  • Page 100 A fine-wire fuse is installed on the circuit board in the terminal box to protect the control electronics. This can be replaced by a replacement fuse if needed. To replace the fuse, proceed as follows: 1. De-energize the dehydrating breather. 2.
  • Page 101 7. Refit the safety cover. Figure 68: Inserting the fine-wire fuse 8. Close the terminal box again. 6820378/05 EN Error messages and troubleshooting  101...

  • Page 102: Replacing The Battery (Cr2032)

    9.4 Replacing the battery (CR2032) If the following LED signaling arises, the CR2032 battery in the device needs to be replaced. Figure 69: Battery exhausted To replace the CR2032 battery in the device, proceed as follows: New battery is available. The device and system peripherals have been de-energized and measures have been taken to ensure that they cannot be switched back on.

  • Page 103: Contaminated Silica Gel

    3. Insert the new battery quickly and do not allow several minutes to pass, because otherwise the internal time will no longer match the current time. When doing so, ensure the polarity is correct. Figure 70: Replacing the CR2032 battery 4. Close the terminal box again (see [►Section 6.10, Page 78]). 5.
  • Page 104 MR Service & Complaint Falkensteinstraße 8 93059 Regensburg Germany E-mail: service@reinhausen.com E-mail: complaint@reinhausen.com 104  Error messages and troubleshooting 6820378/05 EN...

  • Page 105: Maintenance, Inspection And Care

    10 Maintenance, inspection and care CAUTION Risk of burns! Danger of bodily injuries due to heat! During regeneration (yellow LED lights up continuously), do not touch the glass cylinder of the desiccant container. 10.1 Maintenance The dehydrating breather does not require maintenance. 10.2 Inspection Depending on the conditions of use of the device and the national specifica- tions in the respective country of use, the transformer manufacturers can...
  • Page 106 Carry out the following inspections within the specified intervals: Interval Action Detail During each transformer in- Visual inspection Check the external condi- spection tion of the device for con- tamination, damage and corrosion. During each transformer in- Dust protection tube check Carefully clear contamina- spection tion from the dust protec-...
  • Page 107 Use the test button to spection check the signaling paths (see the next chapter). Table 8: Inspection plan In the event of questions or discrepancies, contact: Maschinenfabrik Reinhausen GmbH MR Service & Complaint Falkensteinstrasse 8 93059 Regensburg Germany E-mail: service@reinhausen.com complaint@reinhausen.com...

  • Page 108: Test Button

    10.3 Test button If there was an error on the dehydrating breather, this must be acknowledged prior to conducting a function test. If several er- rors were present, they must be acknowledged individually one after the other. If an error remains present, it is not possible to conduct a function test at this time.

  • Page 109: Quick Test

    Figure 71: Test button 10.3.1 Quick test Humidity level Action gree yel- ≤10% R.H. Humidity OK. ≤10% R.H. Humidity OK. Regeneration imminent. ≤10% R.H. Humidity OK. Regeneration performed within the last 7 days. >10% and <20% Humidity OK. R.H. >10% and <20% Humidity OK.
  • Page 110 Check the installation situation. Are all transition points of the piping still sealed tightly? Contact MR Service & Complaint if neces- sary. >40% R.H. WARNING! The humidity is too high. Regeneration imminent.
  • Page 111 = LED OFF = LED ON = LED FLASHING Starting a quick test in normal operation Device is not in the regeneration process (the silica gel is not being heat- dried; the yellow LED is off). 1. Briefly press the test button (hold down for ≤ 3 seconds). The start of the quick test is signaled by an LED sequence (see following figure).

  • Page 112: Long Test

    If the LEDs signal again or if an error is signaled over the device error signal- ing relay, observe the chapter Error messages and troubleshooting. 10.3.2 Long test NOTICE Incorrect messaging! When performing the long test, the failsafe relay will be activated for test purposes.
  • Page 113 Starting a long test in normal operation Device is not in the regeneration process (the silica gel is not being heat- dried; the yellow LED is off). 1. Press the test button for a longer period and then release (hold down for > 3 seconds).

  • Page 114: Mset Mtrab® Data Logger Software (Optional)

    7. On a DB200G device (gamma control), check whether the ball valve moves to the opposite position and back again. While doing so, monitor the dis- play on the front of the ball valve. Once the long test has been completed, the power LED is permanently lit in error-free operation.
  • Page 115 Figure 75: Spray water Only use a damp cloth and mild cleaning agent to clean the device when needed. 6820378/05 EN Maintenance, inspection and care  115...

  • Page 116: Disposal

    11 Disposal Observe the national disposal regulations in the country of use. 11.1 SVHC information in accordance with the REACH regulation This product complies with the provisions of European Regulation 1907/2006/EC dated December 18, 2006 on the Registration, Evaluation, Au- thorization and Restriction of Chemicals (REACH). The following components of the product contain >...

  • Page 117: Technical Data

    12 Technical data 12.1 Technical data The technical data applies to the standard design and may vary depending on the design delivered. Subject to change without prior notice. Operating conditions Location of use Indoors and outdoors Pollution degree (terminal box) Relative humidity (operation and Inside the terminal box: 5 to 95% (non-condens- storage)
  • Page 118 Design types Materials All external parts are resistant to weathering and UV radiation; version with resistance to saltwater (offshore) optional Color Flanges and metal parts: anodized (aluminum) Terminal box: Powder-coated (C4H or CX in accordance with DIN EN ISO 12944-9 as an option) RAL 7033 (cement gray) or RAL 7038 (agate gray) or RAL 7035 (light gray)
  • Page 119 Power supply Nominal voltage 200 ...240 V AC, 50/60 Hz, 200...240  V DC Pmax. 2500 W 100...127 V AC, 50/60 Hz, 100...127  V DC Pmax. 2,500 W Power consumption Max. 100 mA (in normal operation); Increased power consumption during regenera- tion; refer to the heating current values in the ap- plication table Heating current Current during heating process (approx.
  • Page 120 Terminal box Status display 3 LEDs (green – operation indicator, yellow/blue – regeneration heating/NFC connection, red – device malfunction) visible from the outside; re- fer to status messages for the status Test button For the device function test Fuse 5x20 mm; T2A; 250 V (e.g. Littelfuse 477 series 477002) Signaling contacts Contact type...
  • Page 121 Analog outputs (active) Output analog 1, left, in the upper air Temperature: -40...+80 °C spout 4...20 mA: 7.5 °C/mA or optionally 0...20 mA: 6.0 °C/mA Measuring error: 4...20 mA: +/-2.3 °C 0...20 mA: +/-1.8 °C Output analog 2, right, in the upper Humidity: 0...100% air spout 4...20 mA: 6.25% R.H./mA or optionally 0...20 mA: 5.0% R.H./mA Measuring error: 4...20 mA: +/- 1.9% R.H.
  • Page 122 Options Filter heater HT version: With heated stainless-steel filter; rec- ommended for cold regions with an ambient temperature that is continuously below 0 °C for more than 20 days in order to guarantee proper function Switching point < 5 °C (switch on) Lateral mounting See dimensional drawings in attachment 2 SED 6356077 and attachment 3 SED 6367297 Protective grate...
  • Page 123 Environmental durability tests IEC 60529 – Entire device: IPx6 with limitation, application of spray water only from above or from the sides – Terminal box only: IP66 and IP67 IEC 60068-2-1 Dry cold – -25 °C / 96 hours IEC 60068-2-2 Dry heat +70 °C / 96 hours Power transformer and reactor accessories IEC 60076-22-7 Accessories and fittings...

  • Page 124: Application Table

    12.2 Application table Application Device model Silica gel Tap changer DB100 1.1 kg Arc suppression coil (Petersen coil) DB100 1.1 kg Air-filled cable boxes DB100 1.1 kg Oil-filled cable boxes DB100 1.1 kg Traction transformers DB100 1.1 kg Network transformers ≤ 40 MVA DB100T 1.1 kg Network transformers and step-up DB200T 2.2 kg transformers > 40 MVA...
  • Page 125 Device model Heating current Silica gel Control = 230 V 120 V DB100 1.2 A 0.6 A 1.1 kg Alpha DB100T 1.2 A 0.6 A 1.1 kg Beta DB200T 2.3 A 1.2 A 2.2 kg Beta DB200D-T 4.7 A 2.4 A 4.4 kg Beta DB200G 2.3 A 1.2 A 4.4 kg Gamma 1) Heating current during the heating process (approx. 1–2 min. after heating activation).

  • Page 126: Drawings

    13 Drawings The product may have been altered since this document was published. 126  Drawings 6820378/05 EN...
  • Page 127 DIN-Flansch ähnlich / DIN FLANGE SIMILAR TO DIN 42562-3 .75" .08" 120° RM-Flansch nach / RM FLANGE IN ACCORDANCE WITH DIN 2558 .31" Rundflansch für 1/2"-Schrauben / FLANGE FOR 1/ 2" SCREWS .75" .16"     Maßangaben MTRAB® Standard-Flanschanschlüsse Serialnummer  ...

  • Page 134: Appendix

    14 Appendix 14.1 Modbus RTU Status information Function code "02" for reading the information Value Designation DB100/200/200D DB200G Error present Left SiO2 heating error Right SiO2 heating error DB200D only Voltage supply error Left sensor error Right sensor error DB200D only Right gamma error Left gamma error RTC battery low...
  • Page 135 Value Designation DB100/200/200D DB200G Info two cylinders DB200D Gamma controller info Left cylinder closed Right cylinder closed Left regeneration Right regeneration DB200D only Left sensor status Right sensor status DB200D only Analog values (input register) Function code "04" for reading the information MSW/ Value Designation...

  • Page 136: Rs485 Communication Settings

    Analog values (input register) Function code "04" for reading the information Value Designation DB100/200/200D DB200G sint16 / Left humidity sensor factor 10 sint16 / Left temperature sensor factor 10 sint16 / Right humidity sensor DB200D only factor 10 sint16 / Right temperature sensor DB200D only factor 10...

  • Page 137: Glossary

    Glossary Ambient air temperature Operating temperature Permissible temperature of the air in Permissible temperature in the im- the surroundings of the equipment mediate surroundings of the device in operation on which the device is during operation taking ambient in- installed. fluences, for example due to the equipment and installation location, into consideration.
  • Page 140 Maschinenfabrik Reinhausen GmbH Falkensteinstrasse 8 93059 Regensburg Germany +49 941 4090-0 info@reinhausen.com reinhausen.com Please note: The data in our publications may differ from the data of the devices delivered. We reserve the right to make changes without notice. ® ® 6820378/05 EN - MESSKO MTRAB Operating instructions -...

This manual is also suitable for:

Messko mtrab db200gMessko mtrab db100Messko mtrab db200Messko mtrab db100tMessko mtrab db200t

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