MR MESSKO COMPACT User manual

Pointer thermometer
MESSKO® COMPACT
Operating instructions
5831400/02 EN

© All rights reserved by Maschinenfabrik Reinhausen
Dissemination and reproduction of this document and use and disclosure of its
content are strictly prohibited unless expressly permitted.
Infringements will result in liability for compensation. All rights reserved in the event
of the granting of patents, utility models or designs.
The product may have been altered since this document was published.
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 were written in German.

Table of contents
35831400/02 EN
1 Introduction...........................................................................7
1.1 Manufacturer.................................................................................... 7
1.2 Completeness.................................................................................. 7
1.3 Safekeeping..................................................................................... 7
1.4 Notation conventions ....................................................................... 7
1.4.1 Hazard communication system .................................................................... 7
1.4.2 Information system....................................................................................... 8
1.4.3 Instruction system ........................................................................................ 9
1.4.4 Typographic conventions ............................................................................. 9
2 Security ...............................................................................11
2.1 Appropriate use ............................................................................. 11
2.2 Fundamental Safety Instructions ................................................... 12
2.3 Personnel qualification................................................................... 14
2.4 Personal protective equipment ...................................................... 15
3 IT security............................................................................16
4 Product description............................................................17
4.1 Scope of delivery ........................................................................... 17
4.2 Function description....................................................................... 17
4.3 Design............................................................................................ 19
4.3.1 Compact Standard overview ...................................................................... 19
4.3.2 Overview Compact RM .............................................................................. 20
4.3.3 Cable glands/adapters ............................................................................... 21
4.3.4 Ventilation .................................................................................................. 22
4.3.5 Overview Compact temperature sensor..................................................... 22
4.4 Device versions ............................................................................. 23
4.5 Safety markings ............................................................................. 26
4.6 Nameplate ..................................................................................... 27

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5 Packaging, transport and storage ....................................28
5.1 Purpose ......................................................................................... 28
5.2 Suitability, structure and production............................................... 28
5.3 Markings ........................................................................................ 28
5.4 Transportation, receipt and handling of shipments........................ 28
5.5 Storage of shipments..................................................................... 30
5.6 Further transport ............................................................................ 30
6 Installation and commissioning........................................31
6.1 Transporting in the installed state.................................................. 32
6.2 Checking measured temperature values ....................................... 32
6.3 Mounting the pointer thermometer................................................. 33
6.3.1 Attaching the pointer thermometer to the transformer ............................... 33
6.3.2 Securing the capillary line .......................................................................... 37
6.3.3 Inserting the temperature sensor ............................................................... 37
6.3.4 Inserting the No.7 RM temperature sensor ............................................... 40
6.3.5 Attaching the step protection (optional)...................................................... 41
6.4 Electrical connection...................................................................... 42
6.4.1 Preparation................................................................................................. 43
6.4.2 Removing the bayonet seal ring................................................................. 46
6.4.3 Opening the cover plate ............................................................................. 47
6.4.4 Cable glands and adapters ........................................................................ 49
6.4.5 Connecting the protective conductor.......................................................... 59
6.4.6 Connecting the interfaces (optional) .......................................................... 62
6.4.7 Connecting the micro-switches .................................................................. 67
6.4.8 Connecting cable glands/NPT adapters..................................................... 74
6.5 Checking micro-switches ............................................................... 75
6.5.1 Micro-switch to the right of the pointer ....................................................... 75
6.5.2 Micro-switch to the left of the pointer ......................................................... 76

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6.6 Setting temperature gradients (winding temperature) ................... 78
6.6.1 Gradient setting by heating current (W) ..................................................... 79
6.6.2 Gradient setting by resistance value (WR)................................................. 83
6.7 Connecting the current transformer (winding temperature) ........... 87
6.8 Configuring Modbus (type TTM) .................................................... 89
6.9 Closing the cover plate .................................................................. 90
6.10 Positioning the bayonet seal ring................................................... 91
7 Operation.............................................................................92
7.1 Resetting drag hands..................................................................... 92
8 Maintenance, inspection and care ....................................93
9 Fault elimination .................................................................94
9.1 General malfunctions (type TT) ..................................................... 95
9.2 General malfunctions (type TTM) .................................................. 96
9.3 4…20mA analog signal malfunctions (type TT and type TTM)..... 96
9.4 Modbus communication malfunctions (type TTM) ......................... 97
9.5 Self-diagnostic / data point DEVICESTATUS (type TTM) ............ 98
10 Disposal.............................................................................100
10.1 SVHC information in accordance with the REACH regulation..... 100
11 Technical data...................................................................101
11.1 Ambient conditions ...................................................................... 101
11.2 Technical data ............................................................................. 101
11.3 Micro-switches ............................................................................. 103
11.4 Modbus RTU................................................................................ 106
12 Appendix ...........................................................................109
12.1 Compact pointer thermometer dimensions.................................. 109
12.2 Compact RM pointer thermometer dimensions ........................... 110

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12.3 Temperature sensor .................................................................... 111
12.4 Step protection............................................................................. 112
12.5 Vibration-damping plate/Mounting plate ...................................... 113
12.6 Cable gland dimensions .............................................................. 114
Glossary ............................................................................118

1 Introduction
75831400/02 EN
This technical file contains detailed descriptions on the safe and proper in-
stallation, connection, commissioning and monitoring of the product.
This technical document is intended solely for specially trained and autho-
rized personnel.
1.1 Manufacturer
Maschinenfabrik Reinhausen GmbH
Falkensteinstrasse 8
93059 Regensburg
Germany
Tel.: [phone]
E-mail: [email protected]
Internet: www.reinhausen.com
MR Reinhausen customer portal: https://portal.reinhausen.com
Further information on the product and copies of this technical file are avail-
able from this address if required.
1.2 Completeness
This technical file is incomplete without the supporting documents:
▪ Order confirmation
1.3 Safekeeping
Keep this technical file and all supporting documents ready at hand and ac-
cessible for future use at all times.
1.4 Notation conventions
This section contains an overview of the symbols and textual emphasis
used.
1.4.1 Hazard communication system
Warnings in this technical file are displayed as follows.

1 Introduction
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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
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.
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
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:

1 Introduction
95831400/02 EN
Important information.
1.4.3 Instruction system
This technical file contains single-step and multi-step instructions.
Single-step instructions
Instructions which consist of only a single process step are structured as fol-
lows:
Aim of action
üRequirements (optional).
► Step 1 of 1.
ðResult of step (optional).
ðResult of action (optional).
Multi-step instructions
Instructions which consist of several process steps are structured as follows:
Aim of action
üRequirements (optional).
1. Step 1.
ðResult of step (optional).
2. Step 2.
ðResult of step (optional).
ðResult of action (optional).
1.4.4 Typographic conventions
Typographic convention Purpose Example
UPPERCASE Operating controls,
switches
ON/OFF
[Brackets] PC keyboard [Ctrl] + [Alt]
Bold Software operating con-
trols
Press Continue button

1 Introduction
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Typographic convention Purpose Example
…>…>… Menu paths Parameter > Control pa-
rameter
Italics System messages, error
messages, signals
Function monitoring alarm
triggered
[► Number of pages] Cross reference [► Page41].
Dotted underscore
.............................................
Glossary entry, abbrevia-
tions, definitions, etc.
Glossary entry
........................
Table2: Typographic conventions used in this technical file

2 Security
115831400/02 EN
Read this technical file through carefully to familiarize yourself with the prod-
uct. This technical file is a part of the product.
▪ Read and observe the safety instructions provided in this chapter in partic-
ular.
▪ Observe the warnings in this technical file to avoid function-related dan-
gers.
The product is manufactured based on state-of-the-art technology. Never-
theless, danger to life and limb for the user or impairment of the product and
other material assets may arise in the event of improper use.
2.1 Appropriate use
The pointer thermometer measures the temperature in transformers, shunt
reactors and similar equipment.
The product is designed solely for use in stationary large-scale systems.
If used as intended and in compliance with the requirements and conditions
specified in this technical file as well as the warning notices in this technical
file and attached to the product, then the product does not present any dan-
ger to people, property or the environment. This applies throughout the ser-
vice life of the product, from delivery, installation and operation to removal
and disposal.
The following is considered intended use:
▪ Only use the product with the transformer specified in the order.
▪ Operate the product in accordance with this technical documentation, the
agreed-upon delivery conditions and the technical data.
▪ Ensure that all necessary work is performed by qualified personnel only.
▪ Use the equipment and special tools supplied solely for the intended pur-
pose and in accordance with the specifications of this technical file.
▪ Operate the product in electrical energy systems and facilities.
▪ Only operate the product in industrial areas.
▪ Observe the notices in this technical document regarding electromagnetic
compatibility and the technical data.

2 Security
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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
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. must be worn. Ob-
serve the "Personal protective equipment" [►Section 2.4, Page 15] 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 that the work area is well lit.
▪ Observe the applicable laws for accident prevention in the relevant coun-
try.
Contamination level
Moisture, dust, sweat and other conductive dirt may cause malfunctions in
the device. To ensure contamination levelII, observe the following informa-
tion:
▪ Wear assembly gloves.
▪ Ensure that no dirt or moisture enters the device when it is open.
▪ Close up the device after installation.

2 Security
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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. They are an important aspect of the safety concept. Safety mark-
ings are depicted and described in the chapter "Product description".
▪ Observe all safety markings on the product.
▪ Make sure all safety markings 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 changes to the product may lead to personal
injury, material damage and operational faults.
▪ Only modify the product after consultation with Maschinenfabrik Rein-
hausen GmbH.
Spare parts
Spare parts not approved by Maschinenfabrik Reinhausen GmbH may lead
to physical injury, damage to the product and malfunctions.
▪ Only use spare parts that have been approved by Maschinenfabrik Rein-
hausen GmbH.
▪ Contact Maschinenfabrik Reinhausen GmbH.

2 Security
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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.
2.3 Personnel qualification
The person responsible for assembly, commissioning, operation and inspec-
tion must have the following qualifications.
Electrically skilled person
The electrically skilled person has a technical qualification and therefore has
the required knowledge and experience, and is also conversant with the ap-
plicable standards and regulations. The electrically skilled person is also pro-
ficient in the 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.
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.
Maschinenfabrik Reinhausen GmbH
Technical Service
P.O. Box 12 03 60
93025 Regensburg
Germany
Phone: [phone]
E-mail: [email protected]
Internet: www.reinhausen.com

2 Security
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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.
Protective clothing Close-fitting work clothing with a low tearing strength,
with tight sleeves and with no protruding parts. It mainly
serves to protect the wearer against being caught by
moving machine parts.
Safety shoes To protect against falling heavy objects and slipping on
slippery surfaces.
Safety glasses To protect the eyes from flying parts and splashing liq-
uids.
Visor To protect the face from flying parts and splashing liq-
uids or other dangerous substances.
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
hazards.
Table3: Personal protective equipment

3 IT security
16 5831400/02 EN
Observe the following recommendations to operate the product safely:
▪ Ensure that only authorized personnel have access to the device.
▪ Ensure that the device is only operated by trained personnel who are fa-
miliar with IT security.
▪ If a network-based system (e.g. Ethernet) has access to the bus master,
observe the IT security rules of the system used.

4 Product description
175831400/02 EN
4.1 Scope of delivery
The product is packaged with protection against moisture and is delivered as
follows:
▪ Pointer thermometer with temperature sensor
▪ Technical documents
Optional:
▪ Passive 4...20mA analog output
▪ Active 4…20mA analog output and ModbusRTU interface
▪ Standard cable gland M25x1.5 (brass), WADI cable gland (brass or stain-
less steel) or offshore cable gland (stainless steel) or EMC double cable
gland
▪ 1/2″ 14NPT 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
4.2 Function description
Depending on the device version, the pointer thermometer measures the oil
temperature or determines the winding temperature in power transformers,
distribution transformers or reactors. The temperature sensor of the pointer
thermometer is located in the thermometer pocket mounted in the trans-
former tank. The measured value is displayed directly on the pointer ther-
mometer.

4 Product description
18 5831400/02 EN
Depending on the device version, you can use the following interfaces for
transmitting measured values:
▪ Type TT: Passive 4...20mA analog output
▪ Type TTM (24VDC power supply necessary):
– Active 4...20mA analog output
– RS485 interface for Modbus RTU
In addition, the contacts of the micro-switches switch when threshold values
are exceeded.
Figure1: Example temperature measurement and temperature display
1 Transformer 2 Pointer thermometer for winding
temperature (or oil temperature)
3 Digital display / analog display 4 Transformer cooling system con-
trol
5 SCADA

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

4 Product description
20 5831400/02 EN
4.3.2 Overview Compact RM
Depending on your order, the pointer thermometer features an ANSI or M
connector, cable glands or NPT adapters.
Figure3: Pointer thermometer
1 Temperature sensor 2 Capillary line
3 Adapter 4 Connector plug
5 Cover plate 6 Mounting plate
7 Calibration screw 8 Drag hand reset button
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!