MR MESSKO MMK User manual

Oil Level Indicator
MESSKO® MMK
Operating Instructions
5793437-01 EN

© All rights reserved by Messko GmbH
Dissemination and reproduction of this document and use and disclosure of its
content are strictly prohibited unless expressly permitted.
Infringements will result in liability for compensation. All rights reserved in the event
of the granting of patents, utility models or designs.
The product may have been altered since this document was published.
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
35793437-01 EN
1 Introduction...........................................................................5
1.1 Manufacturer.................................................................................... 5
1.2 Safekeeping..................................................................................... 5
1.3 Notation conventions ....................................................................... 5
1.3.1 Hazard communication system .................................................................... 5
1.3.2 Information system....................................................................................... 7
1.3.3 Instruction system ........................................................................................ 7
1.3.4 Typographic conventions ............................................................................. 8
2 Safety.....................................................................................9
2.1 Appropriate use ............................................................................... 9
2.2 Fundamental safety instructions ...................................................... 9
2.3 Personnel qualification................................................................... 11
2.4 Personal protective equipment ...................................................... 13
3 Product description............................................................15
3.1 Scope of delivery ........................................................................... 15
3.2 Function description....................................................................... 15
3.3 Design/versions ............................................................................. 17
3.4 Nameplate ..................................................................................... 18
4 Packaging, transport and storage ....................................19
4.1 Purpose ......................................................................................... 19
4.2 Suitability, structure and production............................................... 19
4.3 Markings ........................................................................................ 19
4.4 Transportation, receipt and handling of shipments........................ 19
4.5 Storage of shipments..................................................................... 21
5 Mounting .............................................................................22
5.1 Removing the oil level indicator ..................................................... 22
5.2 Checking the flanges on the oil conservator.................................. 22

Table of contents
4 5793437-01 EN
5.3 Attaching the oil level indicator to the oil conservator.................... 23
5.4 Tests .............................................................................................. 27
5.5 Attaching limit switches to the measuring tube.............................. 28
5.6 Attaching the remote transmitter to the measuring tube................ 31
6 Maintenance and care ........................................................34
7 Disposal...............................................................................35
8 Technical data.....................................................................36
8.1 Oil level indicator ........................................................................... 36
8.2 Limit switch .................................................................................... 36
8.3 Remote transmitter ........................................................................ 37
8.4 Dimensional drawing ..................................................................... 38

1 Introduction
55793437-01 EN
This technical document contains detailed descriptions on the safe and
proper installation, connection, commissioning and monitoring of the prod-
uct.
This technical document is intended solely for specially trained and autho-
rized personnel.
1.1 Manufacturer
The product is manufactured by:
Messko GmbH
Gewerbegebiet An den Drei Hasen
Messko-Platz 1
61440 Oberursel
Germany
Phone: [phone]
E-mail: [email protected]
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 Safekeeping
Keep this technical file and all supporting documents ready at hand and ac-
cessible for future use at all times.
1.3 Notation conventions
This section contains an overview of the symbols and textual emphasis
used.
1.3.1 Hazard communication system
Warnings in this technical file are displayed as follows.
1.3.1.1 Warning relating to section
Warnings relating to sections refer to entire chapters or sections, sub-sec-
tions or several paragraphs within this technical file. Warnings relating to
sections use the following format:

1 Introduction
6 5793437-01 EN
WARNING
Type and source of danger
Consequences
► Action
► Action
1.3.1.2 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.
1.3.1.3 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

1 Introduction
75793437-01 EN
Pictograms warn of dangers:
Pictogram Definition
Warning of a danger point
Warning of dangerous electrical voltage
Warning of combustible substances
Warning of a tipping hazard
Warning of a hot surface
Table2: Pictograms used in warning notices
1.3.2 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.
1.3.3 Instruction system
This technical file contains single-step and multi-step instructions.

1 Introduction
8 5793437-01 EN
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).
1.3.4 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 Parameter > Control pa-
rameter
Italics System messages, error
messages, signals
Function monitoring alarm
triggered
[► Number of pages]. Cross reference [► 41].
Table3: Typographic conventions

2 Safety
95793437-01 EN
This technical document contains detailed descriptions on the safe and
proper installation, connection, commissioning and monitoring of the prod-
uct.
▪ Read this technical file through carefully to familiarize yourself with the
product.
▪ This technical file is a part of the product.
▪ Read and observe the safety instructions provided in this chapter in partic-
ular.
▪ Observe the warnings in this technical file in order to avoid function-re-
lated dangers.
▪ The product is manufactured on the basis of state-of-the-art technology.
Nevertheless, risks to life and limb for the user or impairment of the prod-
uct and other material assets may arise in the event of improper use.
2.1 Appropriate use
The oil level indicator displays the oil level of the transformer's oil conserva-
tor using a float gauge and magnetic flaps.
The product is designed solely for use in electrical energy systems and facili-
ties. If used as intended, in compliance with the requirements and conditions
specified in this technical document and the warning notices in this technical
document and attached to the product, the product does not pose risk of in-
jury or damage to property or the environment. This applies across the entire
service life of the product, from delivery to installation and operation through
to disassembly and disposal.
The following is considered appropriate use:
▪ Use the product only with the transformer specified in the order.
▪ Operate the product in accordance with this technical document, 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.
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:

2 Safety
10 5793437-01 EN
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 13] 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.
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.