Leutert Engine Indicator S1 Operating Instructions Manual

Engine Indicator S1 - Operating instructions

Engine Indicator S1

Operating instructions

Engine Indicator S1 - Operating instructions

General

This operating manual provides instructions on how to use this product
properly, effectively and safely to the intended purpose. Please, do
read all instructions, notes on danger and warning attentively. Please
follow all safety hints and precaution notes in order to avoid damages
to people or property during the work process. LEUTERT cannot be
responsible for damages or injuries resulting from unsafe product use,
incorrect product operation or lack of maintenance.

The operating manual is directed mainly to technically trained personnel.
In case of uncertainty regarding the safety hints or the operation,
please do not hesitate to contact LEUTERT for help. Should you notice a
faulty description or depiction or if you would like to point out hints for
improvement, we are looking forward to hearing from you.

Please keep the operating instructions near the product to have it
available if needed. Make sure that the instructions are protected from
dirt and moisture.

Explanation of the different symbols:

DANGER
Immediate danger is possible causing severe injuries or even death if
you do not follow the instructions given.

WARNING
If you do not follow the warning, dangerous situations may occur
leading to severe injuries or even death.

CAUTION
Follow the instructions carefully, otherwise dangerous situations may
occur leading to injuries or damages to property.

NOTICE
Please follow the recommendations and instructions for a correct and
flawless operation of the device or measuring system.

2 Friedrich Leutert GmbH & Co. KG

Engine Indicator S1 - Operating instructions

Contents

Safety Instruction ............................................................................... 4

Application and Product Description ................................................... 4

Technical specifications .......................................................................5

Spare Parts List ...................................................................................6

Design ............................................................................................... 7

Recording Mechanism ........................................................................ 8

Piston and Cylinder............................................................................. 8

Indicator Spring ..................................................................................9

Indicator Drum ................................................................................... 9

Drive of Recording Drum .................................................................. 10

Handling and Care of the Indicator ................................................... 10

Technical Advice for Taking Diagrams ............................................... 10

Leutert Indicators, Accessories and Testing Equipment ...................... 11

Friedrich Leutert GmbH & Co. KG 3

Engine Indicator S1 - Operating instructions

Safety Instruction

DANGER! Before using indicator, open indicator valve or cock,
blow out any dust, and close it again. Hot gas and particles may
be ejected. WEAR GLOVES AND SAFETY GLASSES!

Application and Product Description

The Leuter Indicator Type S1 can handle higher speeds and is, therefore,
the choice device where the helical spring indicators Type 50Z1 and
30/1 are no longer suitable.

It is a mechanical indicator that still records a clear diagram at speeds
above 800 min-1 and pressure change rates exceeding 24000 bar/sec.

Fig. 1 shows the schematic outlines of the Leutert bar spring indicator
drawing particular attention to its principal features. Contrary to the
indicators types 50Z1 and 30/1, the type S1 indicator has a bar spring
(2) instead of a double-coiled helical spring which - being a body of
almost equal resistant - is stressed by bending. The special design of its
indicator places its natural frequency far above that of indicators using a
helical spring. Consequently, type S1 indicator permits perfect diagrams
to be obtained at speeds up to about 2400 min
rates up to about 32000 bar/sec.

-1

and pressure change

The number of natural frequencies of the indicator is calculated about
(340/√f) + 40, f = scale of the bar spring to be used in mm/bar, referring
to the 1/1 piston.

Fig. 1 - Schematic drawing

4 Friedrich Leutert GmbH & Co. KG