SIAM SUDOS-mini 2 User manual

Tomsk Scientific Industrial Introduction Company “SIAM” LLC
SUDOS –mini 2
Level gauge
OPERATING MANUAL
TOMSK

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CONTENTS
1. GENERAL PRODUCT INFORMATION...................................................................7
2. BASIC SPECIFICATIONS...........................................................................................7
3. DELIVERY SET............................................................................................................9
4. SAFE OPERATION INSTRUCTIONS.....................................................................10
4.1. GENERAL PROVISIONS (NORMATIVE CODES)............................................................10
4.2. REQUIREMENTS TO THE PERSONNEL.........................................................................10
4.3. TEST OBJECT............................................................................................................10
4.3.1. Requirements to the test object ........................................................................11
4.4. REQUIREMENTS TO THE TEST OBJECT.......................................................................11
4.4.1. Surface equipment preparation........................................................................11
4.4.2. The level gauge assembly sequence.................................................................12
4.4.3. Level gauge disassembly..................................................................................13
5. ARRANGEMENT AND OPERATION OF THE TOOL.........................................13
5.1. GENERAL INFORMATION...........................................................................................13
5.2. ARRANGEMENT,APPLICATION AND OPERATION OF COMPONENTS ............................13
5.2.1. SUDOS-mini 2 level gauge..............................................................................13
5.2.2. Ball-type Nozzle ......................................................................................16
5.2.6. Handle..............................................................................................................17
5.2.7. Additional accessories .....................................................................................17
5.3. LEVEL GAUGE OPERATION........................................................................................19
5.3.1. Function...........................................................................................................19
5.3.2. Control and display units.................................................................................20
5.3.3. Basic functions of the keys ...............................................................................20
5.3.4. Operation modes of the tool.............................................................................21
5.3.5. Turning the tool on and turning it off ..............................................................28
5.3.6 Explosion-proofness of the device.....................................................................29
5.3.7 Measures to ensure and keep the device explosion-proofness during the
assembly, disassembly and repair of the device.........................................................30
5.3.8 Safety and environmental instructions..............................................................32
6. PREPARING FOR WELL TEST...............................................................................32
7. MEASURING...............................................................................................................34
7.1. FLUID LEVEL MONITORING .......................................................................................34
7.1.1. Echogram recording and level determination .................................................34
7.1.2. Recording a wideband echogram (for a wideband level gauge) .....................35
7.2. AUTOMATIC RECORDING OF GAS PRESSURE IN THE WELLHEAD ANNULUS ................36

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8. MAINTENANCE.........................................................................................................37
8.1. SCHEDULE OF MAINTENANCE...................................................................................37
8.2. MAINTENANCE PROCEDURE.....................................................................................38
8.2.1. Cleaning the tapered connection thread, flushing the inside of the level gauge.
Cleaning the face panel and housing.........................................................................38
8.2.2. Maintenance of the manual valve ....................................................................39
8.2.3. Flushing and lubricating the interface connector............................................40
8.2.4. Operation monitoring ......................................................................................40
8.2.5. Pressure testing................................................................................................41
8.2.6. Replacement of the manual valve sealing ring ................................................41
9. STORING AND TRANSPORTATION OF THE TOOL.....................................42
SUPPLEMENTS..............................................................................................................42
SUPPLEMENT 1.LEVEL MONITORING UNDER COMPLICATED CONDITIONS.........................42
SUPPLEMENT 1.1. RECOMMENDATIONS ON MEASUREMENTS UNDER COMPLICATED
CONDITIONS ....................................................................................................................42
SUPPLEMENT 2. SETTING OF A USER SOUND SPEED CORRECTION TABLE .........................44
SUPPLEMENT 3. DEPENDENCE OF SOUND SPEED ON ANNULAR PRESSURE (TABLES FOR
GENERAL USE).................................................................................................................46
SUPPLEMENT 4. CHARGING THE BATTERY.......................................................................47
SUPPLEMENT 5. TRANSFERRING DATA TO A COMPUTER..................................................48
SUPPLEMENT 7. THE ECHOGRAM VISUALIZATION IN THE GRAPHIC DISPLAY....................55
SUPPLEMENT 8. SETTING THE TIME AND DATE.INITIALING THE STORAGE .......................56
SUPPLEMENT 9. SETTING THE OPERATOR AND WORKSHOP NUMBER AND RESETTING THE
SECONDS.........................................................................................................................58
SUPPLEMENT 10. SETTING THE PRESSURE SENSOR AT ZERO............................................59
SUPPLEMENT 11. TESTING THE LEVEL GAUGE.................................................................59
SUPPLEMENT 11.1. RESTARTING THE LEVEL GAUGE .......................................................60
SUPPLEMENT 11.2. RECORDED ECHOGRAM TEST............................................................60
SUPPLEMENT 12. MALFUNCTIONS DETECTED BY TESTING THE LEVEL GAUGE.................60
SUPPLEMENT 13. LIST OF POSSIBLE MALFUNCTIONS AND METHODS OF RECTIFICATION..62

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SIAM COMPANY IS GRATEFUL TO YOU FOR ACQUIRING
SIAM-MASTER –MINI GSM AND ASKS YOU TO ADHERE TO
THE FOLLOWING MAJOR REQUIREMENTS WHEN
OPERATING THE DEVICE:
The level gauge is an electronic microcontroller device with internal
battery, keyboard, storage, etc.. When operating the device, do not hit it or
expose it to severe vibrations, acids, alkalis and strong solvents. Do not
submerge the device into liquid!
Before switching on the device for the first time or after prolonged
storage, charge the accumulators and only after it switch on the device.
Always charge the battery until it is fully charged. The charging process
must not be interrupted. Do not charge the accumulators at negative
temperatures since it results into their premature failing!
Do not carry out initialization when the battery is discharged (the
LED flashes) and do not switch off the instrument after the initialization
process has started until it is complete.
When clearing the storage it is possible to reset the date and time in
the device, but this erases all accumulated information from the level
gauge's memory without the possibility of restoring it. It is therefore
recommended to save the measurement results in the "SIAM database"
before carrying out the storage clearance.
 This type of level gauge сап transfer information to аpersonal
computer (РС). In order to avoid errors and information losses, when
transferring the data to these tools, read attentively and strictly follow
the operational requirements of corresponding software products and
tools. Pay attention to the version of the installed software. This
tool operates in combination with "DB SIAM" of аV2.5-version and
above.
While tightening up the well sounder on the measuring connection of
the wellhead tree, use the standard clamps on the case. No impact drivers
or level gauge body are allowed.
Do not rotate the valve of the well sounder at excessive pressure in
the working volume of the sensor! After mounting the sensor gage, turn the
valve to the desired position, and only then open the valve on the

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measuring connection. Failure to observe this requirement drastically
reduces the life of the moving seals.
When operating level gauge, follow the requirements of the
Maintenance section of this document. Avoid severe contamination of
components, especially the acoustic sensor, the valve and the tapered
connecting thread of the gage as it leads to its malfunction and reduction in
the service life.
Maintenance of the device is to be performed only by SIAM Service
Company or by certified specialists. Unauthorized opening of the device, as
well as violation of operation rules, entails loss of warranty!

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1. GENERAL PRODUCT INFORMATION
The document presents two versions of the level gauge:
1) SUDOS - mini 2 (standard version),
2) SUDOS - mini 2 wideband.
The “SUDOS – mini 2” level gauge (hereinafter the level gauge) is
intended for prompt monitoring of the fluid level in oil producing wells.
The level gauge provides the monitoring of a static and dynamic
level, recording of curves of the fluid level fall and recovery, automatic
recording of gas pressure in the annulus at the wellhead.
The level gauge can be used to observe a fluid level while operating
the wells, as well as while putting them into operation after their repair or
outage.
The wideband Level gauge SUDOS-mini 2 (hereinafter the
wideband level gauge) can be used for recording wideband echograms
which are used to determine the sound speed in oil wells in a computer.
The device is explosion-proof designed (intrinsically safe circuit
type of protection) and have 1ExibIIBT3 -40°C≤ta<+50°C explosion proof
mark. The device is designed for indoor and outdoor installation in 1 and
2 hazardous areas classes, where atmospheric explosives of IIA, IIB
categories and T1, T2, T3 groups can form according to GOST R IEC
60079-20-1-2011 in the operating temperature range from -40 ºC to +50
ºC. The device design is comply with the assigned explosion proof mark,
with the requirements of GOST IEC 60079-10-1-2011, GOST 30852.0-
2002 (IEC 60079-0:1998), GOST 30852.10-2002 (IEC 6—79-11:1999)
and other regulatory documents governing the use of electrical equipment
in hazardous areas.
2. BASIC SPECIFICATIONS
Table 1.
Parameter name
Norm on specifications
1 Explosion proof mark according to
GOST 31610.0-2014 (IEC 60079-0:2011)
1Ex ib IIB T3 X
2 Range of monitored levels, m
(20 6000)
- monitoring resolution, m
1

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Parameter name
Norm on specifications
3 Range of monitored pressures, kilogauss/
cm2
(0 100)
- monitoring resolution, kilogauss/ cm2
0.1
4 Non-volatile storage capacity
- for symbol reports
12064
-for graphs
2605
5 Non-volatile storage capacity *
- for symbol reports
8512
-_for graphs
400
-_for wideband echograms
261
6 Time of continuous operation under
normal climatic conditions and after the
battery cell has been fully charged, not less
than, hours
14
Time of charging of a discharged battery,
hours
4
Non-volatile memory-backup time, years,
not less
5
Operating temperature ranges, С
(-40 +50)
Service life, years
5
Weight, max., kg
2,9
Notice: * - for the wideband level gauge only.
Warning:
Please do not forget to update the software
on your personal computer.
Information can be obtained at
www.siamoil.ru

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3. DELIVERY SET
The device is supplied according to the set shown in Table 2
Table 2.
Title
Q-ty
Notice
1. Level gauge (echometer) SUDOS-mini 2
1
2. Interface cable USB
1
3. Power unit with USB
1
4. Automobile power unit with USB
1
*
5. Ball-type nozzle / rubber sphere
1
6. Device bag
1
7. Personal computer software:
Flash drive with DB “SIAM” version 2.5 (and above).
1
8. Operation documentation:
SUDOS-mini 2. Certificate
1
SUDOS-mini 2. Operating manual
1
DB “SIAM” v 2.5 User’s Guide
1
9. Spare parts and accessories
Handle to install the tool on a well
1
For the valve unit:
- Ring 020-024-25-2-3
- Cone IZM 8.323.011
1
1
Notice 1:
* - Optional
Acoustic pulse generator GAI-01, Multiple-function Valve, GBO-
02 conversion kit are supplied on request.
Notice 2:
The manufacturer reserves the right to make changes in the design
and completeness of the product not worsening characteristics (in
connection with modifications of both the device itself and its software)
without prior notice and without making changes to the product certificate
and other operating documentation.

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4. SAFE OPERATION INSTRUCTIONS
4.1. General Provisions (normative codes)
The construction of the wellhead equipment should correspond to the
scheme approved by the Federal Mining and Industrial Supervision of
Russia.
Preparation of a well for tests and carrying out of the tests should be
performed in accordance with the requirements of the Instruction and
internal well servicing and tests instructions approved by the head of
your company.
Test equipment should be operated according to the operating manual
delivered with the equipment by the manufacturing company.
Safety measures are regulated by instructions of labor protection for
appropriate types of work, approved by the labor protection department
of the enterprise and by "Safety regulations for the oil and gas industry"
approved by the Federal Mining and Industrial Supervision of Russia.
4.2. Requirements to the personnel
Only people who are 18 years and older, who have a secondary or
higher education and are in health conditions allowing them to work in this
area are permitted to carry out well test.
The personnel should be professionally trained, examined and have a
special permission to conduct the works in accordance with qualification
requirements: not below category 5 for oil and gas production operators;
not below category 4 for well test operators.
The personnel should be trained to operate on the test-equipment.
The training is performed by personnel of the manufacturing company
directly or by authorized representative of SIAM Company directly on the
working place.
4.3. Test object
Such tests as pressure measuring and fluid level monitoring are carried
out on oil and gas producing wells of different operation types (flowing,
gas-lift, artificial lift and other), as well as on injection, water-intake,
monitor and otherwells.

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4.3.1. Requirements to the test object
Construction and operation of a well should be performed in
accordance with "Safety rules in the oil and gas industry".
All Tested well, irrespective of its application and operation mode,
should have a technological tap equipped with a valve and a wave metering
tool seating nipple. A fluid level determination is possible only in that
space of the well (tubular, tubular annulus, hole annulus, string annulus)
which connects with the operating technological tap. While carrying out
the measurements, there should not be any neckings (connections,
dosimeters and similar tools) in the tap. The nipple of the technological tap
should be placed at the height of 0.2 - 1.8 m above the ground. Taper
joining thread should be 60 according to GOST 633-80. When the nipple is
at the height of more than 1.8 ft above the ground, it is necessary to use
stationary or portable platforms if they are appropriate to the "Safety
regulations for the oil and gas industry”. The nipple which is not being
used at the moment should be blanked off.
In the way of an acoustic pulse, not more than two bends of the
tubing at the angle of 90° and at the distance of 65.6 ft away from the
nipple are admissible.
4.4. Requirements to the test object
4.4.1. Surface equipment preparation
Make sure that the valve of the technological tap and a pressure
gauge are in running order.
Check that the pressure in the well tested annulus is in the range of
maximum permissible pressure of the tool. When using the exhaust
receiver supplied with the level gauge, ensure that its operating
pressure does not exceed the maximum response pressure of the
solenoid (electromagnetic) valve.
Remove the end cap from the technological nipple. Clean the taper
thread from sludge, oil, sand and etc. Check the compliance of the tread
with the requirements mentioned above. In cases when a thread type does
not comply with the requirements, as well as if there is an undue wear,

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massive corrosion or damages of the nipple's thread, carrying out tests is
prohibited.
Clean the inner space of the nipple from paraffin, hydrates, ice and
other.
4.4.2. The level gauge assembly sequence
Clean the thread part of a coupling of the level gauge from sludge
and check it. If there is an undue wear, massive corrosion or damages of
the thread, the assembly of the level gauge is not permitted.
Open the valve in the technological tap for a while (for 1-2 sec.) in
order to blow it through (to clean it from condensate, ice, sludge and other
plugs).
Install the level gauge screwing it on as far as it will go on the nipple
and turn it tight in order to avoid a displacement of the level gauge when it
is under pressure. A tightening torque should be not less than 200±30 psi.
To tighten the thread, use the clips on the thread coupling of the level
gauge and a wrench for adapting pipe from atool set. It is possible to use
any convenient lever instead of the handle.
ATTENTION! When tightening, it is prohibited to use impact
tools and the rotating body of the level gauge as a lever.
Turn the outlet valve of the gauge in such a way that gas escape hole
is not towards you.
Check whether the nut of the level gauge's outlet valve is tightened
well, if not, turn it tight.
Turn the tool's body with the display and keyboard in a position
comfortable for access and observation.
ATTENTION! It is allowed to rotate the rotating body and valve
only if there is no pressure in the working body of the level gauge.
Lift off the front panel cover and set up the tool in a pressure
monitoring mode.
Gradually, not causing a pneumatic or hydraulic impact, open a gate
valve until gas starts entering the level gauge. Stop the gate valve opening
for a while in order to smooth the pressure in the well and in the tool's
working body, and, then, open the gate valve completely. A pressure
smoothing process should be controlled with the tool's display in pressure
monitoring mode.

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In order to avoid a thread joint gas leakage, use thread sealing
lubrication R-402 (TU 38.101.330-73) or a sealing tape FUM 0,1х20 (TU
6-05-1388-86).
4.4.3. Level gauge disassembly
Turn off the tool.
Close the gate valve of the technological tap.
Open an outlet valve of the tool and let the excessive pressure
out of the working body.
Screw out the level gauge and take it off the nipple. Drain the
working body off the condensate, clean a thread part and house the tool in
its bag.
Place the end cap on the nipple.
5. ARRANGEMENT AND OPERATION OF THE TOOL
5.1. General information
The “SUDOS-mini 2” level gauge is a compact electronic mono-unit
tool. It is a completely self-contained tool and provides all functional
abilities of a well level gauge. The tool is capable to display all basic
monitoring parameters and results immediately.
The level gauge provides level control for wells with low annular
pressure with the acoustic pulse generator GAI-01.
The tool supports export of information to a computer. An applied
software DB "SIAM" included in the delivery set, makes it possible to
create and add computer data bases, to process and analyze measurement
results in more detail.
5.2. Arrangement, application and operation of components
5.2.1. SUDOS-mini 2 level gauge
The level gauge is intended to generate acoustic pulses in the
annulus, to receive and convert an acoustic response (an acoustic signal), as
well as to determine the fluid level and to monitor pressure at the well
head. The tool operates according to its internal program controlled with a
built-in microprocessor controller which synchronizes the operation of all
the components, processes the data transferred from primary transducers,

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performs a level calculation, displays the operation modes and monitoring
results on a digital display, as well as it registers measurement parameters
and results in its fixed storage, and ensures a communication with the
computer.
The level gauge is powered by a built-in battery with a minimum of
1000 charge-discharge cycles. To charge the battery, there is a built-in
programm controlled battery charger allowing to service the battery cell
correctly.
2
1
4
5
6
3
8

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The level gauge consists of:
1 –outlet valve (rotating, removable);
2 –rotating tool body;
3 –two install clips;
4 –a thread jointing coupling;
5 –a symbol display;
6 –keyboard;
7 –an auxiliary slot to connect external devices such as a mains-operated
adapter, a cable for charging from car power, a micro printer, a
computer, and a visual monitoring unit;
8 –charge indicator.
When monitoring the fluid level, the level gauge is installed directly on
a measuring nipple of the well Christmas tree, and measuring cables are not
required. The control and display units are placed on the rotating body and
have a protective cover. The body with the valve and control and display
units can be positioned conveniently by rotating it about its longitudinal
axis in any direction and at any angle (up to 225o). The outlet valve can
also be rotated freely about its longitudinal axis in order to fix an outlet
hole in a position not towards an operator.
ATTENTION! Do not rotate the body and the outlet valve if
there is excessive pressure in the working body of the level gauge.

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5.2.2. Ball-type Nozzle
The ball-type nozzle (the rubber sphere) is
designed for generating an acoustic impulse when
there is no excessive gas pressure in the annular
space of the well. The ball-type nozzle is made up
of the rubber sphere and the coupling. The ball-
type nozzle is actuated by a violent blow of the
hand on the sphere. An acoustic impulse, sufficient
for positive control of the fluid level in wells up to 600…800 m, is formed.
After the acoustic impulse is generated, the rubber sphere should be kept in
the position which it took immediately after the blow until the value of the
measured level pops up on the screen. The ball-type nozzle is screwed on
the well sounder instead of the retrievable manual valve by using the
reduction sleeve supplied with the device.
5.2.3 Power supply with USB connector
The power supply with USB connector is designed to power the
charger integrated in the device. The power supply unit is connected to the
220 V/50 Hz mains, the device is connected to the USB slot of the power
supply unit via a USB interface cable.
The power supply unit ensures the normal parameters of the charging
process at mains voltages of 190 to 240V, with a DC voltage of 5V at a
load current of at least 500 mA at its output.
5.2.4 Аcar power supply unit with USB slot
Аcar power supply unit is untendedforchargingthelevelgauge
with аfixed voltage of 12V from the car power supply in the field
environment.
The car power supply unit is connected to the on-board power
supply of the vehicle, the appliance is connected to the USB slot of the
power supply via the USB interface cable.
ATTENTION! The battery cell's temperature should bеin the
range of +5 С up to +30 С .
Note - A car power supply with USB connector is available as an
option.
5.2.5 Interface USB cable USB
The interface USB cable is intended to connect the level gauge to a
computer and to transfer data from the tool to a computer database, and

17
also to connect the appliance to a power supply with USB connector or to a
car power supply unit with USB connector to charge the appliance
battery.
5.2.6. Handle
The handle ensures convenient
assembly and disassembly of the level
gauge on a well; and the handle is of a
great length and strength that makes it
possible to tighten (with an adequate
moment) (see Section 4.4.2) the level
gauge on a measuring nipple with the
help of install clips on a rubber
jointing coupling of the level gauge without the use of any other tools.
5.2.7. Additional accessories
GAI-01 Acoustic Pulse
Generator
GAI-01 acoustic impulse
generator is supplied separately and is
designed for generating an acoustic
impulse when there is no excessive gas
pressure in the annular space of the
well. GAI-01 can be used at low annular
pressure for controlling fluid level up to 1800… 2500 m.
GAI-01 is a unit which combines a container for accumulating
excessive air pressure, a manual pump, a shipping lock pin and a valve for
quick bleeding off. The handle has spare rubber gaskets for GAI-01.
GAI-01 is to be installed on the well sounder instead of the
removable manual valve using the reduction sleeve in the gage package.
Multiple-function Valve
The Multiple-function valve is designed for use in level gauges of
the SUDOS series, for generating an acoustic pulse by launching gas into a
well or releasing gas from a well. The valve is installed in place of the
conventional manual valve. If there is a significant excess annular pressure,
the valve is used as a conventional manual valve to generate an acoustic

18
pulse by releasing a portion of gas into the annular space. At low
overpressures and under vacuum, the valve can be used to generate an
acoustic signal by letting a portion of high-pressure gas into the annulus. In
this case, a set of gas-balloon equipment GBO-02 filled with nitrogen is
used as a source of excess pressure. When gas is released from the annulus
with a universal valve, the receiver, from the GBO-02 set, can be used to
change the shape of the acoustic package. In this case, gas equipment is not
connected.
GBO-02 Conversion Kit
A set of gas-balloon equipment (gas -
nitrogen) "GBO-02" is used when refitting
level gauges of the "SUDOS" series to ensure
level control in the absence and low excess
pressures (2 - 4 atm.) in the annulus of the well.
GBO-02 consists of a cylinder, a reducer, a
receiver and a connecting hose. The hose is
equipped with a connector that allows you to
connect (disconnect) gas-cylinder equipment to
the level gauge receiver. A cylindrical receiver
from the GBO-02 set is screwed (threaded
connection) onto a specialized manual valve of
the level gauge. Gas from a BC-type cylinder is
supplied through the VK94 valve, BK-50-4
reducer (reduces pressure to 15 atm) and
through a hose into the storage receiver. When
the level gauge valve is opened, a portion of the gas accumulated in the
receiver enters the annulus of the well and thereby an acoustic signal is
formed to control the liquid level in the well in the absence of excess
pressure in the well (or low pressure, up to 4 atm). One filling of the
cylinder is sufficient for up to 250 level measurements, provided that the
pressure in the cylinder is 150 atm.

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5.3. Level gauge operation
5.3.1. Function
When monitoring the fluid level, аwave metering method is used.
The operation process is rendered automatically. The participation of the
operator (after mounting the device) is required only to generate an
acoustic pulse using the level gauge outlet valve, or additional devices for
generating acoustic pulses (ball-type nozzle, GAI-01).
After an acoustic pulse is generated by a solenoid or manual valve,
the acoustic signal travels down the wellbore, is reflected off the liquid
level and returns to the wellhead, the signal is amplified and stored. The
tool monitors an acoustic signal during 20 seconds, amplifies it and
records it in its storage. Simultaneously the gas pressure in the annulus is
also determined and recorded in the storage. While analyzing and
processing the recorded data, the fluid level in the well is determined, then
shown on the display, and automatically stored in an nonvolatile memory
of the tool as a symbol report. Recorded results including a complete
echogram of the acoustic signal can be transferred to a computer database.
When calculating the fluid level, the tool automatically selects an
acoustic pulse velocity according to one of the sound velocity tables
recorded in it. The number of the correction table is selected by the
operator. In addition to it, it is possible not to use the tables, but to set a
sound speed (irrespective of pressure and level) manually using the
keyboard.
According to our experience, the sound speed in wells саn greatly
vary even within one and the same field. Therefore, it is highly
recommended to use the correction table applied for your region for
an individual field or аgroup of wells within the field. In any case, the
tool will display аlevel based only оn the sound speed that has beenset
init! The tool automatically analyses the level of all signals including
noise signals, as well as it evaluates a degree of an interference effect, and,
when it is necessary, automatically activates (or deactivates) a program
interference filter.

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РЕЖИМ
ВВОД
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УРОВЕНЬ
ВОЗВРАТ
5.3.2. Control and display units
The control and display units are the following:
a symbol display of operation modes, parameters and measurement
results and a four-key keyboard.
The display is used to show the tool's operation modes, to control the
input of initial parameters (reference data) of a test, to monitor the test in
progress and to display basic numerical results of the test. The indicator
provides the minimum required functionality that fully supports the
autonomous operation of the appliance.
The four-key keyboard provides an input (a change) of necessary
parameters, input of operator's commands, control of all the operation
modes including both a mode of the independent operation of the tool and
a mode of its communication with peripherals. A general view, layout and
notation of the keyboard's keys are shown in the picture.
The functional duties of the keys are described in more detail in the
next section.
5.3.3. Basic functions of the keys
Turn on the tool.
Consecutively look through (in a closed cycle) the
operation modes.
Consecutively look through a number of flashing
(changeable) digit place position on the digital display
when entering (orchanging) parameters
Turn on the tool.
Change a value of a set parameter step-by-step (cycling)
looking through the provided alternatives. The set
ВВОД
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