BD Sensors BD SIMEX PAD-73S User manual

13.01.2009 V.2.01
USER MANUAL for
digital indicator with U/I input
type: PAD-73S
firmware version: 5.14 or higher
Read the user's manual carefully before starting to use the unit.
Producer reserves the right to implement changes without prior notice.

User manual for digital indicator with U/I input PAD-73S
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CONTENTS
1. BASIC REQUIREMENTS AND USER SAFETY....................................................................................... 3
2. GENERAL CHARACTERISTICS.............................................................................................................. 4
3. TECHNICAL DATA .................................................................................................................................. 4
4. DEVICE INSTALLATION ......................................................................................................................... 6
4.1. UNPACKING ................................................................................................................................. 6
4.2. ASSEMBLY ................................................................................................................................... 6
4.3. CONNECTION METHOD............................................................................................................... 8
4.4. MAINTENANCE........................................................................................................................... 11
5. DESCRIPTION OF IR REMOTE CONTROLLER AND
CONTROL SOFTWARE PUSH-BUTTONS.................................................................................................12
6. PRINCIPLE OF OPERATION..................................................................................................................12
6.1. MEASUREMENT MODE.............................................................................................................. 12
6.2. DETECTION OF THE PEAK VALUES ......................................................................................... 14
7. DEVICE PROGRAMMING...................................................................................................................... 14
7.1. PROGRAMMING MENU.............................................................................................................. 14
7.2. PARAMETERS EDITION............................................................................................................. 15
7.2.1. Numeric parameters (digit change mode) ........................................................................... 15
7.2.2. Numeric parameters (slide change mode)........................................................................... 15
7.2.3. Switch parameters (“LIST” type) ..........................................................................................16
7.3. MENU DESCRIPTION ..................................................................................................................17
7.3.1. “inPt” menu..........................................................................................................................17
7.3.2. “bri” parameter.................................................................................................................... 19
7.3.3. “HOLd” menu...................................................................................................................... 20
7.3.4. “Scod” parameter................................................................................................................ 20
7.3.5. “rS” menu ........................................................................................................................... 20
7.3.6. “Edit” parameter.................................................................................................................. 21
7.3.7. “dEFS” parameter ............................................................................................................... 21
7.3.8. “SErv” menu ....................................................................................................................... 21
7.4. MENU STRUCTURE ................................................................................................................... 22
8. OVER-CURRENT PROTECTION........................................................................................................... 23
9. DISPLAYED VALUES CALCULATION.................................................................................................. 23
9.1. ADDITIONAL CALCULATIONS (USED CONVERSION CHARACTERISTIC).............................. 23
9.1.1. Linear characteristic............................................................................................................ 23
9.1.2. Square characteristic .......................................................................................................... 24
9.1.3. Square root characteristic ................................................................................................... 24
9.1.4. User defined characteristic.................................................................................................. 25
9.2. EXAMPLES OF CALCULATIONS.................................................................................................26
10. THE MODBUS PROTOCOL HANDLING ............................................................................................. 29
10.1. LIST OF REGISTERS................................................................................................................ 29
10.2. TRANSMISSION ERRORS DESCRIPTION............................................................................... 31
10.3. EXAMPLES OF QUERY/ANSWER FRAMES ............................................................................ 31
11. DEFAULT AND USER'S SETTINGS LIST ........................................................................................... 34

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Explanation of symbols used in the manual:
- This symbol denotes especially important guidelines concerning the installation
and operation of the device. Not complying with the guidelines denoted by this
symbol may cause an accident, damage or equipment destruction.
IF THE DEVICE IS NOT USED ACCORDING TO THE MANUAL THE USER IS
RESPONSIBLE FOR POSSIBLE DAMAGES.
- This symbol denotes especially important characteristics of the unit. Read any
information regarding this symbol carefully
1. BASIC REQUIREMENTS AND USER SAFETY
-The manufacturer is not responsible for any damages caused by
inappropriate installation, not maintaining the proper technical condition and
using the unit against its destination.
- Installation should be conducted by qualified personnel. During installation all
available safety requirements should be considered. The fitter is responsible for
executing the installation according to this manual, local safety and EMC
regulations.
- The unit must be properly set-up, according to the application. Incorrect
configuration can cause defective operation, which can lead to unit damage or an
accident.
- If in the case of a defect of unit operation there is a risk of a serious threat
to the safety of people or property additional, independent systems and
solutions to prevent such a threat must be used.
- The unit uses dangerous voltage that can cause a lethal accident. The unit
must be switched off and disconnected from the power supply prior to
starting installation of troubleshooting (in the case of malfunction).
- Neighbouring and mating equipment must meet the requirements of appropriate
standards and regulations concerning safety and be equipped with adequate anti-
overvoltage and anti-interference filters.
-Do not attempt to disassemble, repair or modify the unit yourself. The unit
has no user serviceable parts. Units, in which a defect was stated must be
disconnected and submitted for repairs at an authorized service centre
- In order to minimize fire or electric shock hazard, the unit must be protected
against atmospheric precipitation and excessive humidity.
- Do not use the unit in areas threatened with excessive shocks, vibrations,
dust, humidity, corrosive gasses and oils.
- Do not use the unit in explosion hazard areas.

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-Do not use the unit in areas with significant temperature variations, exposed to
condensation or icing.
- Do not use the unit in areas exposed to direct sunlight.
- Make sure that the ambient temperature (e.g. inside the control box) does not
exceed the recommended values. In such cases forced cooling of the unit must be
considered (e.g. by using a ventilator).
The unit is designed for operation in an industrial environment and must not
be used in a household environment or similar.
2. GENERAL CHARACTERISTICS
The PAD-73S is a simple digital panel indicator, equipped with two measurement inputs. One
current input (0-20/4-20 mA) and one voltage input (0-5/1-5/0-10/2-10 V). Current input has
additionally overcurrent protection circuit, which protects standard resistor.
The selection of active input is realised by software, and selected input can be changed at any
time. Additionally the PAD-73S allows user to select a conversion characteristic of several
kinds: linear, square, square root, and user defined (max. 20 points length). Result is showed
on 4-digit LED display. Displayed values range can be selected by user, from -999 to 9999, plus
decimal point. Device PAD-73S is equipped with RS-485 / Modbus RTU communication
interface.
The measurement range, active input and other parameters can be selected while ordering.
The device can be configured via IR remote controller or, optionally by PC via RS-485 interface,
or using simple RS-232 to IR converter. Moreover communication interface RS-485 enables
data transmission in any monitoring system equipped witch Modbus RTU protocol.
Easy assembling, small dimensions, precision and reliability are the basic trumps of
PAD-73S indicators.
IR remote controller is not a part of the PAD-73S and must be ordered separately.
3. TECHNICAL DATA
Power supply voltage 230 V
AC
±10%; 50 ÷ 60 Hz
(depending on version) or 110 V
AC
± 10%, 50 ÷ 60 Hz
or 24 V
DC
(not separated)
External fuse (required) T - type, max. 2 A
Power consumption max.1.5 VA @ 230 V
AC
and @ 110 V
AC
1 W @ 24 V
DC
Current input 0 ÷ 20 mA, 4 ÷ 20 mA overload protected,
maximum input current about 50 mA
Current measurement accuracy ± 0.25% ± one digit (for 0 ÷ 20 mA range)
Current input resistance ~ 50 Ω
Voltage input 0 ÷ 5 V, 1 ÷ 5 V, 0 ÷ 10 V, 2 ÷ 10 V

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Voltage measurement accuracy ± 0.25 % ± one digit (for 0÷10 V range)
Voltage input resistance ~ 100 kΩ
Display range -999 ÷ 9999, plus decimal point
Accepted prolonged input overload: 20 %
Communication interface RS-485, 8N1 and 8N2, Modbus RTU, not separated
Baud rate 1200 bit/s ÷ 115200 bit/s
Display LED, 4 digit, 13 mm height, red
Data memory non-volatile memory, EEPROM type
Protection level IP 40 (from front)
IP 20 (housing and connection clips)
Housing type panel
Housing material NORYL UL94V-0
Housing dimensions for 24 V
DC
version: 72 x 36 x 77 mm
for 230 V
AC
version: 72 x 36 x 94 mm
Mounting hole 67 x 32.5 mm
Assembly depth for 24 V
DC
version: min. 78 mm
for 230 V
AC
version: min. 95 mm
Panel thickness max. 5 mm
Operating temperature 0 °C to +50 °C
(depending on version) or -20 °C to +50 °C
Storage temperature -10 °C to +70 °C
(depending on version) or -20 °C to +70 °C
Humidity 5 to 90 % no condensation
Altitude up to 2000 meters above sea level
Screws tightening max. torque 0.5 Nm
Max. connection leads diameter 2.5 mm
2
Safety requirements according to: PN-EN 61010-1
installation category: II
pollution degree: 2
voltage in relation to ground: 300 V
AC
insulation resistance: >20 MΩ
insulation strength between power supply and
input/output terminal: 1min. @ 2300 V
EMC according to: PN-EN 61326
This is a class A unit. In housing or a similar area it can cause radio
frequency interference. In such cases the user can be requested to use
appropriate preventive measures.

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4. DEVICE INSTALLATION
The unit has been designed and manufactured in a way assuring a high level of user safety and
resistance to interference occurring in a typical industrial environment. In order to take full
advantage of these characteristics installation of the unit must be conducted correctly and
according to the local regulations.
- Read the basic safety requirements on page 3 prior to starting the installation.
- Ensure that the power supply network voltage corresponds to the nominal voltage
stated on the unit’s identification label.
- The load must correspond to the requirements listed in the technical data.
- All installation works must be conducted with a disconnected power supply.
- Protecting the power supply clamps against unauthorized persons must be
taken into consideration.
4.1. UNPACKING
After removing the unit from the protective packaging, check for transportation damage. Any
transportation damage must be immediately reported to the carrier. Also, write down the unit
serial number on the housing and report the damage to the manufacturer.
Attached with the unit please find:
- user’s manual,
- warranty,
- assembly brackets - 2 pieces.
4.2. ASSEMBLY
- The unit is designed for mounting indoor inside housings (control panel,
switchboard) assuring appropriate protection against electric impulse waves. Metal
housing must be connected to the grounding in a way complying with the governing
regulations.
- Disconnect the power supply prior to starting assembly.
- Check the correctness of the performed connections prior to switching the unit on.
In order to assembly the unit, a 67 x 32.5 mm mounting hole (Figure 4.1) must be
prepared. The thickness of the material of which the panel is made must not
exceed 5 mm. Place the unit in the mounting hole inserting it from the front side of
the panel, and then fix it using the brackets (Figure 4.2). The minimum distances
between assembly holes’ axes - due to the thermal and mechanical conditions of
operation - are 91 mm x 57 mm (Figure 4.3).

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Figure 4.1. Mounting hole dimensions
Figure 4.2. Installing of brackets, and dimensions of connectors.
Figure 4.3. Minimum distances when assembly of a number of units

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4.3. CONNECTION METHOD
Caution
- Installation should be conducted by qualified personnel. During installation all
available safety requirements should be considered. The fitter is responsible for
executing the installation according to this manual, local safety and EMC
regulations.
- The unit is not equipped with an internal fuse or power supply circuit breaker.
Because of this an external time-delay cut-out fuse with minimal possible nominal
current value must be used (recommended bipolar, max. 2 A) and a power supply
circuit-breaker located near the unit. In the case of using a monopolar fuse it must
be mounted on the phase cable (L).
- The power supply network cable diameter must be selected in such a way that in
the case of a short circuit of the cable from the side of the unit the cable shall be
protected against destruction with an electrical installation fuse.
- Wiring must meet appropriate standards and local regulations and laws.
- In order to secure against accidental short circuit the connection cables must be
terminated with appropriate insulated cable tips.
- Tighten the clamping screws. The recommended tightening torque is 0.5 Nm.
Loose screws can cause fire or defective operation. Over tightening can lead to
damaging the connections inside the units and breaking the thread.
- In the case of the unit being fitted with separable clamps they should be inserted
into appropriate connectors in the unit, even if they are not used for any
connections.
- Unused clamps (marked as n.c.) must not be used for connecting any
connecting cables (e.g. as bridges), because this can cause damage to the
equipment or electric shock.
- If the unit is equipped with housing, covers and sealing packing, protecting
against water intrusion, pay special attention to their correct tightening or clamping.
In the case of any doubt consider using additional preventive measures (covers,
roofing, seals, etc.). Carelessly executed assembly can increase the risk of electric
shock.
- After the installation is completed do not touch the unit’s connections when it is
switched on, because it carries the risk of electrical shock.
Due to possible significant interference in industrial installations appropriate measures
assuring correct operation of the unit must be applied. To avoid the unit of improper
indications keep recommendations listed below.
- Avoid common (parallel) leading of signal cables and transmission cables together with
power supply cables and cables controlling induction loads (e.g. contactors). Such
cables should cross at a right angle.
- Contactor coils and induction loads should be equipped with anti-interference protection
systems, e.g. RC-type.

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- Use of screened signal cables is recommended. Signal cable screens should
be connected to the earthing only at one of the ends of the screened cable.
- In the case of magnetically induced interference the use of twisted couples of
signal cables (so-called “spirals”) is recommended. The spiral (best if shielded)
must be used with RS-485 serial transmission connections.
- In the case of interference from the power supply side the use of appropriate
antiinterference filters is recommended. Bear in mind that the connection
between the filter and the unit should be as short as possible and the metal
housing of the filter must be connected to the earthing with largest possible
surface. The cables connected to the filter output must not run in parallel with
cables with interference (e.g. circuits controlling relays or contactors).
Connections of power supply voltage and measurement signals are executed using the screw
connections on the back of the unit’s housing.
Figure 4.4. Method of cable insulation replacing and cable terminals
Figure 4.5. Terminals description
All connections must be made while power supply is disconnected!

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Figure 4.6. Connection of power supply
a) for 230 V
AC
version; b) for 24 V
DC
version
Figure 4.7. Connection of 2-wire current converters
Figure 4.8. Connection of 3-wire current converters

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Figure 4.9. Connection of voltage converters
4.4. MAINTENANCE
The unit does not have any internal replaceable or adjustable components available to the user.
Pay attention to the ambient temperature in the room where the unit is operating. Excessively
high temperatures cause faster ageing of the internal components and shorten the fault-free
time of unit operation.
In cases where the unit gets dirty do not clean with solvents. For cleaning use warm water with
small amount of detergent or in the case of more significant contamination ethyl or isopropyl
alcohol.
Using any other agents can cause permanent damage to the housing.
Product marked with this symbol should not be placed in municipal waste. Please
check local regulations for disposal and electronic products.

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5. DESCRIPTION OF IR REMOTE CONTROLLER AND CONTROL
SOFTWARE PUSH-BUTTONS
Symbols and functions of push buttons:
Symbol used in the manual: [ESC/MENU]
Functions:
•Enter to main menu (press and hold by at least 2 sec.)
•Exit the current level and Enter to previous menu (or measure mode)
•Cancel the changes made in parameter being edited
Symbol used in the manual: [ENTER]
Functions:
•Start to edit the parameter
•Enter to the sub-menu,
•Confirmation of changes made in parameter being edited
Symbol used in the manual: [^] [v]
Functions:
•Change of the present menu,
•Modification of the parameter value,
•Change of the display mode.
6. PRINCIPLE OF OPERATION
After turning the power supply on, device ID and software version are showed on the display,
next the controller goes to the measurement mode.
6.1. MEASUREMENT MODE
In the measure mode, the measurement results, converted over selected characteristic, are
displayed on the LED display. The measurement range equal to the nominal range is called:
nominal measurement range, and the measurement range equal to the extended nominal
range is called: permissible measurement range (Figure 6.1, 6.2).

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Figure 6.1. Definitions of measurement ranges in mode 4 ÷ 20 mA
If the result of measurement exceeds the permissible measurement range, warning “-Hi-” or
“-Lo-” is displayed rather than input signal, depends on exceeded value (see description of
“Lo r” i “Hi r” parameters, paragraph “inPt” menu).
Figure 6.2. Definitions of measurement ranges in mode 0 ÷ 20 mA
If the measurement value do not exceeds permissible measurement range but
displayed value exceeds range -999 ÷ 9999, the warning “-Ov-” is displayed rather
than the calculated result.
Input type, range of displaying values, characteristic of conversion, decimal point position and
measure filtering ratio, are user configurable parameters. All accessible parameters can be
changed by entering the menu (see: DEVICE PROGRAMMING). Use the local keyboard or the
remote controller to do it. (Note: all parameters can be remote changed via RS-485 interface).
Configuration of the device (via menu or RS-485 interface) do not stops measures.

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6.2. DETECTION OF THE PEAK VALUES
The PAD-73S controller is equipped with peaks detection function. It can detect a peaks of the
input signal and display their values. Presets connected with this function are placed in “HOLd”
menu (see description of “HOLd” menu). The detection of the peak can be done if the
measured signal raises and drops of value at least equal to parameter “PEA”. Detected peaks
are displayed during the time defined by parameter “timE”. If a new peak will be detected while
one is displayed, this new peak will be displayed and display time counter will be cleared
(Figure 6.3). If no peaks are detected while time “timE” elapses, device starts to show the
current value of input signal again.
Figure 6.3. Process of peaks detection
7. DEVICE PROGRAMMING
The device menu allow user to set all parameters connected to operation of measurement input,
control modes, critical situations behaviour, communication via RS-485 and access settings. The
meaning of the particular parameters is described in paragraph MENU DESCRIPTION.
7.1. PROGRAMMING MENU
To enter main menu (being in the measurement mode) operator must to press and hold at least
2 sec. [ESC/MENU] button.
If the user password is defined (see parameter “Scod”), operator have to enter correct one
before proceeding to menu options. Entering of the passwords is similar to the edition of
numeric parameters (see:
PARAMETERS EDITION ) , however presently editing digit is showed
only on the display, other digits are replaced by “-” sign.
After entering of last digit of the password first menu position will be displayed (if the password
is correct) or warning “Err” in other case.

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Functions of the buttons while sub-menu and parameters choice:
Selection of sub-menu or parameter for editing. Name of selected item
(sub-menu or parameter) is displayed.
Operation of [ENTER] button depend on present menu position:
•if the name of some sub-menu is displayed - enter this sub-menu; name
of the first parameter (or next level sub-menu) is displayed,
•if the name of some parameter is displayed - enter the edition of this
parameter; present value of the parameter is displayed,
[ESC/MENU] button allow user to exit present menu level and goes to upper
level menu (or measurement mode).
After about 1 min. since last use of the buttons, device exits the menu mode and
returns to the measurement mode (only if no parameters are in editing mode).
7.2. PARAMETERS EDITION
To start edition of any parameter user should select name of desired one using [^] [v] buttons
and then press [ENTER].
7.2.1. Numeric parameters (digit change mode)
Numerical parameters are displayed as decimal numbers. The mode of its new value entering
depends on chosen edit method (see parameter “Edit”).
In mode “by digit” (“Edit”=“dig”) pressing one of the keys [^] or [v] causes change of current
position (flashing digit) or the sign (+/-). Short pressing of the [ENTER] button causes change of
the position (digit).
Press [ENTER] at least 2 seconds to accept the changes, after that question “SEt?” is
displayed, and user must to confirm (or cancel) the changes. To conform changes (and story it
in EEPROM) press [ENTER] button shortly after “SEt?” is displayed. To cancel the changes
press [ESC] button shortly after “SEt?” is displayed. After that device returns to the menu.
7.2.2. Numeric parameters (slide change mode)
In “slide change” mode (“Edit”=“Slid”), buttons [^] and [v] has different functions.
To increase edited value press (or press and hold) [^] button only, the increasing became
quickest as long as button [^] is pressed. To slow down the increasing, button [v] can be used.
If [v] is pressed shortly (and button [^] is still pressed), increasing slow down for a moment
only, if [v] is pressed and held while button [^] is still pressed the increasing slow down and will
be kept on lower speed.
To decrease edited value press (or press and hold) [v] button only. The decreasing became
quickest as long as button [v] is pressed. To slow down the decreasing, button [^] can be used.
If [^] is pressed shortly (and button [v] is still pressed), decreasing slow down for a moment
only, if [^] is pressed and held while button [v] is still pressed the decreasing slow down and will
be kept on lower speed.

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Press [ENTER] at least 2 seconds to accept the changes, after that question “SEt?” is
displayed, and user must to confirm (or cancel) the changes. To conform changes (and story it
in EEPROM) press [ENTER] button shortly after “SEt?” is displayed. To cancel the changes
press [ESC] button shortly after “SEt?” is displayed. After that device returns to the menu.
7.2.3. Switch parameters (“LIST” type)
Switch parameters can be described as a sets of values (a lists) out of which only one of the
options available on the list can be selected for the given parameter. Options of switching
parameter are selected using [^], [v] keys.
Short pressing of [ENTER] causes in displaying of the acknowledge question ( “SEt?” ). If key
[ENTER] is pressed again, the changes are accepted, stored in EEPROM end the edition
process finished. Pressing the key [ESC] after “SEt?” causes in cancelling of made changes
and returning to menu.
Functions of buttons when editing numeric and switching parameters:
While editing numeric parameter:
•change of current (flashing) digit
•slide change of value (acceleration, deceleration, direction change)
While editing switch parameter - selection of switch parameter.
If numerical parameter is being edited, a short press of [ENTER] button
change edited position. A long press of [ENTER] button (at lest 2 sec.) causes
of display a “SEt?” ask, which allow user to make sure if change of the
parameter value is correct. If switch parameter is being edited, a short press
of [ENTER] button causes of display a “SEt?” ask. When [ENTER] button is
pressed again (while “SEt?” is displayed) the new value of the parameter is
stored in EEPROM memory.
Pressing this button operator can cancel the changes done up to now (if they
were not approved by [ENTER] button after the “SEt?” ask) and come back to
menu

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7.3. MENU DESCRIPTION
“- - - -” - password checking. If some password different from “0000” is set, then every
enter to main menu follows the entering of password. If entered password is
correct then first menu position will be displayed else warning “Err”, and unit
returns to measurement mode.
Due to problem with direct displaying of “m” letter, it is exchanged with special
sign “ “. Independently in user manual letter “m” is used to make it more
readable (example: “modE”).
7.3.1. “inPt” menu
This menu presets the measurement input:
“tYPE" - type of the input / sensor. This parameter can be set to
values: “0-20”, “4-20” ” - current inputs.
“0-10”, “2-10”, “0-5”, “1-5” ” - voltage inputs.
Displayed values are defined by parameters “Lo C”,“Hi C” (or by user defined
characteristic points) and parameter “Pnt”.
“CHAr” - this option presets type of the conversion characteristic, and can be set to:
“Lin” - linear
“Sqr” - square
“Sqrt” - square root
“USEr” - user defined characteristic. Maximal length 20 points. Every point is
defined by user. Adding, Editing and Deleting of points is done by options
“AddP”, “EdtP”, “dELP” (“InPt” menu) respectively.
If user defined characteristic is selected, and if number of defined points is lower
than 2 then warning “Errc” is displayed in measurement mode.
The process of displayed result calculation is described in details in DISPLAY VALUES
CALCULATION paragraph.
“FiLt” - this parameter sets filtration rate. It can be set to values from 0 (no filtration) to 5
(strongest filtration – time window about 2 sec).
“Pnt” - decimal point position. It can be set to one of:
“ 0” , “ 0.0” , “ 0.00” , “0.000”
Decimal point position is changed by [^], [v] buttons.
When one of those characteristics is chosen display
range is defined by “Lo C” and “Hi C” .

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“Lo C” These parameters describe the values displayed for minimum and maximum input
“Hi C” current. For example, if input type is set to 4-20 mA “Lo C” parameter defines the
value displayed when input current is equal 4 mA, and “Hi C” parameter defines
the value displayed for 20 mA of input current. Available range for these
parameters: -999 ÷ 9999. Negative values can be set by entering “-“ sign on the
first position (by use of [^], [v] buttons).
If user defined characteristic is selected (parameter “CHAr” = “USEr”) the
parameters “Lo C” and “Hi C” are not available for modification, due to their
values are calculated from defined characteristic.
“AddP” - this menu allow user to add single point to the user defined characteristic.
After selection of this option device waits for “X” and “Y” coordinates of new point.
Modification of the coordinates is done accordingly to numerical parameters
edition. Coordinate “X” defines the percentage ratio of input current to selected
current range. The “X” range: -99.9 ÷ 199.9. Coordinate “Y” defines displayed
value for particular “X” value. The “Y” value can be changed in range:
-999 ÷ 9999, decimal point position depend on “Pnt” parameter (menu “inPt”).
•User cannot enter two points with the same value of “X” coordinate. If user try
to do it, “Err” warning is displayed. To modify any defined point use “EdtP”
option.
•To distinguish “X” and “Y” coordinates, if “X” coordinate is displayed an
additional decimal point on utmost right position is displayed.
•If user defined characteristic is selected, and if number of defined points is
lower than 2 then warning “Errc” is displayed in measurement mode.
“dELP” - this option allows user to delete any of the points of the user defined
characteristic. After selection current number of points of the user defined
characteristic is displayed for about approx. 1.5 sec. After that device waits for
selection of point being deleted (by [^], [v] buttons). The short pressing of
[ENTER] button causes by switching between Xand Yvalue of the displayed
point. The long press (press and hold at least 2 sec) of [ENTER] button causes by
displaying “dEL?” ask. If [ENTER] button is pressed again, current point is
deleted and new updated number of points of the user defined characteristic is
displayed.
“EdtP” - this option allows user to modify of particular point of the user defined
characteristic. After selection current number of points of the user defined
characteristic is displayed for about approx. 1.5 sec. After that device waits for
selection of point being edited (by [^], [v] buttons). The short pressing of [ENTER]
button causes by switching between Xand Yvalue of the displayed point. The
long press (press and hold at least 2 sec) of [ENTER] button causes by entering
to edit the selected coordinate of the point. Modification of the coordinates is done
accordingly to numerical parameters edition.
“AddP”, “dELP” and “EdtP” options are available only if the user defined
characteristic is used (it means when parameter “CHAr” =“USEr”).

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“Lo r”, these parameters define the expansion of nominal range in percent. They
“Hi r” determine the permissible range of input signal (Figure 7.1).
The permissible range allow user to exceed the nominal range of input signal. If
input value is contained in the permissible range a proper result is displayed. If
input signal exceeds this range (defined by “Lo r” and “Hi r”), “-Lo-” or “- Hi-”
warning is displayed depend on input signal value.
Figure 7.1 Example of definition of permissible range of input signal -
“Lo r” and “Hi r” parameters (“4-20” mode)
The “Lo r” parameter is important if input is set to “4-20”, “1-5” or “2-10” mode
only, and determines lower border of the permissible range. If input is set to
“0-20”, “0-5” or “0-10” mode then lower border of the permissible range is
always 0.
For example if input is set to “4-20” mode, then lower border is calculated due to
expression: I
min
= 4 mA - 4 mA × “Lo r” %.
The “Lo r” value can be set from 0 to 99.9 %.
Parameter “Hi r” determines the upper border of the permissible range
accordingly to the expression (for all modes).
For example if input is set to “4-20” mode, then upper border is calculated due to
expression: I
max
= 20 mA + 20 mA × “Hi r” %.
The value of “Hi r” can be set from 0 to 19.9 %
In example no 1 of the DISPLAY VALUES CALCULATION paragraph the
procedure of the permissible input range determining is presented in details.
If the measurement value do not exceeds permissible measurement range but
displayed value exceeds range -999 ÷ 9999, the warning “-Ov-” is displayed
rather than the calculated result.
7.3.2. “bri” parameter
This parameter allows user to set bright of the LED display, bright can be set to conventional
values from 1 to 8.

User manual for digital indicator with U/I input PAD-73S
20
7.3.3. “HOLd” menu
This menu contains parameters connected with peak detection function. See also full
description of the peak detection function in paragraph: DETECTION OF THE PEAK VALUES
“modE” - the type of detected changes of the input signal, can be set to values:
“norm” - peaks, peak and next drop of the input signal of value equal at least “PEA”,
“inv” - drops, drop and next peak of the input signal of value equal at least “PEA”,
“PEA” - minimal detected signal change classified as peak or drop (see Figure 6.3)
“timE” - maximum time of displaying of the peak (drop) value, can be set from 0.1 to
19.9 sec, with 0.1 sec. resolution
“HdiS” - type of displayed values:
“rEAL” - current value is displayed,
“HOLd” - peak (drop) value is displayed,
7.3.4. “Scod” parameter
This parameter defines user password (4-digits number). If this parameter is set at value
“0000”, user password is turned off.
If the user do not remember his password, the access to the menu is
possible by the “one-use password”. To get this password please contact
with Marketing Division. “Single use password” can be used only one time,
after that it is destroyed. Entering this password causes in clearing of user
password, it means sets the user password to “0000”.
The “one-use password” can be used ONE TIME ONLY, it is impossible to use it
again! The “one-use password” can be restored by Service Division only.
7.3.5. “rS” menu
This menu is connected with RS-485 interface, and sets his properties:
“Addr” - this parameter defines the address of the device, accordingly to Modbus
protocol. It can be set in range from 0 to 199. If the value 0 is set then device,
responds to frames with address 255 (FFh).
“bAud” - this parameter determines RS-485 interface baud rate. It can be set to one of 8
possible values: “1.2”, “2.4”, “4.8”, “9.6”, “19.2”, “38.4”, “57.6”, “115.2”, which
respond to the baud rates of 1200, 2400, 4800, 9600, 19200, 38400, 57600 and
115200 bit/sec respectively.