Turbo Eco-Net 128 Operation instructions

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Eco-Net 128 Control Unit
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Control Unit
ECO-NET 128
Use and Maintenance Instructions
Version: 1.02
Issue: March 2021

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Description ____________________________________________________________________ 3
General features _______________________________________________________________ 4
Dimensions and measurements _________________________________________________ 5
Mechanical fixing ______________________________________________________________ 5
Warning Symbols Used in the Manual __________________________________________ 6
Installation regulations and warnings __________________________________________ 6
General connection diagram ___________________________________________________ 8
Layout of connection to the valve actuators Bus _______________________________ 9
Connection layout to the ERCP pilot enclosure boxes _________________________ 10
Display and keyboard __________________________________________________________ 11
Main Menu ____________________________________________________________________ 12
Basic Configuration _________________________________________________________________________12
Advanced Set Up ___________________________________________________________________________13
Alarms ______________________________________________________________________________________14
Calibration / Test ___________________________________________________________________________14
Counters ____________________________________________________________________________________15
Secondary Menu ______________________________________________________________ 15
Operating mode _______________________________________________________________17
Manual mode _______________________________________________________________________________ 17
Automatic mode ____________________________________________________________________________ 17
Proportional mode __________________________________________________________________________18
Special manual mode _______________________________________________________________________ 18
Functionality __________________________________________________________________ 19
Cleaning with fan off (Post -Cleaning) _______________________________________________________ 19
Precoating __________________________________________________________________________________19
Setting number of outputs __________________________________________________________________19
Enabling cleaning from remote control _____________________________________________________19
Output 4-20mA ____________________________________________________________________________ 20
Input 4-20mA ______________________________________________________________________________ 20
Alarms ________________________________________________________________________ 20
Setting the pressure thresholds dP ____________________________________________ 21
Setting the pressure unit of measurement _____________________________________ 21
Maintenance __________________________________________________________________ 23
Disposal ______________________________________________________________________ 23
Warranty ______________________________________________________________________ 23
Exclusions From Warranty _____________________________________________________ 23
Troubleshooting FAQ _________________________________________________________ 24

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Eco-Net 128 Control Unit
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Description
The ECO-NET 128 control unit (Master Economiser) is an electronic device for controlling
pneumatic cleaning of the Industrial Dust Collector Systems. Thanks to the digital control of the
pressure differential, carried out by the internal transducer, the Eco-Net 128 accurately analyses the
status of clogging of the filters and automatically manages cleaning only when necessary; thus
optimising the entire dust removal process.
The construction technology of the Eco-net 128 allows up to 127 valve actuators to be connected in
cascade mode, via 3-wire Bus communication.
The control unit has a powerful micro-controller which, through innovative software, makes the
instrument easy to use even by inexperienced users.
The Eco-net 128 has a graphic LCD with menu in 5 languages, through which the user can control
the entire cleaning process and make settings by accessing the various menus via a series of
buttons positioned on the front panel of the control unit.
The following are available on the control unit connection terminal board:
-2 digital inputs for remote control (Remote control, fan status);
-2 alarm relays (actuators anomaly, Δp pressure exceeded);
-1 current-Loop 4÷20mA output for pressure Δp re-transmission;
-1 output for valve actuators Bus connection;
-1 current-Loop 4÷20mA input (optional);
Other control unit features are:
-Backlit display with menu in five languages;
-Operating mode can be selected from “manual”, “automatic”, “proportional” and “special”;
-Pressure unit of measurement can be selected from KPa, mBar, mmH2O, Inch WC;
-Extended power supply voltage range (100÷240Vac 50-60Hz) (optional: 24Vac/24Vdc);
-Fan off washing function (Post pul.) using the fan ∆p threshold in setting automatic/proportional mode and by means of
external contact in manual/special mode with programmable number of cycles;
-Hour Meter and Pulse Counter for maintenance;
-Minimum ∆p alarm (broken hose) with on/off selection.
-Maximum ∆p alarm (clogged filter);
-Valve actuator not working alarm;
-Filtering elements maintenance alarm, with on/off selection.
-Cleaning cycle start from external contact.
-Compressed air presence consent input.
-Precoating Function;
-Manual activation of individual valve actuator for system test function:

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General features
Power supply voltage
100÷240Vac 50-60 Hz
Optional: 24Vac/Vdc ± 10 %
Electric consumption (with Ton max=10sec)
25W at max load
(35W per 24Vac/Vdc IN)
Protection fuse
1A (100÷240Vac IN)
3A (24Vac/Vdc IN)
Operating temperature
-10 °C - 55 °C
Storage Temperature
-20 °C - 60 °C
Environmental humidity
0 ÷ 95% Rel. (Non Condensing)
Pressure Transducer
0 ÷ 10Kpa (max 40Kpa) (*)
Maximum pressure applicable
50KPa –0.5 bar
High pressures
damage the device
Pulse Time (valve opening)
50msec ÷ 5sec
Pause time (interval between valves opening)
1sec ÷ 7200sec
Proportional output 4 ÷ 20 mA
1x 4÷20mA current Loop
(self-powered)
Alarm Relays
2 N.C. (voltage-free contact)
24Vac/dc 5Amp (**)
Display
Monochrome graphic LCD
B/N 128 x 64 Pixel.
Casing
ABS base
Polycarbonate Lid
Protection rating from water and dust
IP65 (DIN EN 60529)
Shock resistance
IK08/07 (8 Joule) (En62262)
Flammability
(UL746C 5): UL 746C 5V
Resistance to UV rays
UL508
Seals
EPDM and polyurethane
Colour
RAL 7035
Overall weight
1.1 Kg
Note(*):
Higher pressures may damage the transducer Do not connect clogging measuring tubes to
the compressed air circuit.
Note(**):
For 230Vac 5Amp relay contacts, request the optional “Piggy-back 2 RELAY” board

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Eco-Net 128 Control Unit
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Dimensions and measurements
Mechanical fixing

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Warning Symbols Used in the Manual
The indications regarding safety are highlighted using the following symbols:
Attention - Danger
Warning - Generic
Risk –Hazard
Electric Current
Dispose of according to the WEEE Waste Electrical
and Electronic Equipment Directive
Installation regulations and warnings
▪
Protect the equipment from direct exposure to sunlight.
▪
Position the equipment away from sources of heat or electromagnetic fields generates by
equipment being used.
▪
Fix the equipment to the wall at a height of at least 60 cm from the ground; it must be clearly
visible and easy to reach.
▪
Connect the equipment to supply lines different to those used for motor drives or other large
power devices that could generate network disturbances or instability.
▪
The appliance electric power supply must be protected by a 230Vac~ 30 mA differential circuit
breaker and a 230Vac~ 10 A bi-polar magnet circuit breaker, positioned in a place that is easy to
reach.
▪
Before intervening on the appliance to perform any operation, deactivate the magnet circuit
breaker.
▪
For electrical operations, always remove the voltage and wait 30 seconds for the internal capacitors
to discharge before opening the container.
When finished, close the device before turning on power.
▪
Make sure you are in a safe atmosphere before using the equipment for any type of operation.
▪
Use flame-proof cables with minimum section of 0.75mm² certified and compliant with regulations
to connect the power supply voltage.
IEC60227
IEC60245
▪
Use flame retardant cables with a minimum section of 0.5 mm² for all input control signals and
valve actuators.
▪
Use flame retardant cables with a minimum section of 0.75 mm² for signal relay contacts.
▪
The protective earth cable must be yellow/green.
▪
The protective earth cable must be connected first.
▪
The yellow/green cable must only be used for earthing.
Continues....

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Eco-Net 128 Control Unit
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▪
The cable glands are selected in relation to the diameter of the cable use.
▪
Sealing of the cable gland is guaranteed by the compression of the rubber gasket, which tightens
on the external diameter of the cable.
▪
The dimensions of the cable and the cable gland must guarantee that pull on the power supply
cable does not affect the terminals.
▪
The terminal board must not be a mechanical anchorage point of the wires.
▪
The PG9 cable gland supplied on request, has a minimum cable diameter of 4mm and maximum of
8mm, with locking nut of 19mm.
▪
Any use not foreseen in this user manual and improper use of the device may cause damage to the
same and possibly to the connected equipment.
▪
Misuse or tampering with equipment could cause damage to people.
▪
The container is waterproof when the door is closed.
▪
If rigid or flexible ducts are used for wiring, make sure they cannot be filled with water or other
liquids.
▪
Do not make holes on the container that are unprotected or protected by accessories with a
degree of protection lower than that of the control unit.
▪
If water is found in the container, immediately stop supplying voltage.
▪
Whenever the control unit is used in ways not specified by the manufacturer, the protection
envisioned by the appliance may be compromised.
▪
The control unit does not release potentially toxic or hazardous substances for health and the
environment.
▪
No part with dangerous voltage is normally accessible.
IMPORTANT
Do not use the control unit before reading
and understanding this manual.

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Eco-Net 128 Control Unit
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General connection diagram
Connections key
Pos.
Description
Notes
P1 (1-2-3)
Main power supply connector
P15 (4-5)
“Cleaning Fan Off” input contact (Post pul.)
Potential-free contact (*)
P16 (6-7)
"Remote enabling" input contact
Potential-free contact (*)
P17 (8-9)
Filter fan hour counter contact
Potential-free contact (*)
P18 (10-11)
Digital input contact (reserved for future expansions)
Potential-free contact (*)
P13 (12-13)
Current-Loop 4÷20mA analogue input
Optional
P14 (14-15)
Current-Loop 4÷20mA analogue output
max. load = 300 Ohm
P5 (16-17-18-19)
Alarm relay contacts (16-17, 18-19)
Normal. Closed (**)
P8
Input/Output connector (reserved for future expansions)
P12
Communication connector (reserved for future expansions)
P11 (27-28-29)
Connector for solenoids actuators Bus
3 dedicated wires
U13
Pressure Transducer
dP+ =dirty side
dP- =clean side
(*)
voltage-free contact
(**)
IMPORTANT: to be used only for SELV voltages (max 24Vac/dc) guaranteed by a safety isolation transformer.

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Eco-Net 128 Control Unit
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Layout of connection to the valve actuators Bus
Connect the valves actuators Bus to connector P11, respecting the following positions:
Pos.
P11
Description
Notes
27
Green wire
0 V
28
White wire
Bus digital signal
29
Brown wire
+24Vdc
The cable used for wiring must be of the following type: H05VV-F 0.75mm2–19AWG.
The cable connected to the P11 connector of the Eco-Net 128 control unit, must be introduced into the
“IN” port of the first valve actuator present on the chain, using a PG7 type connector, complete with
seals supplied, to guarantee the IP sealing of the circuit.
Successively, jumpered wiring must be realised from the “OUT” port of the first actuator, for connection
to the “IN” port of the next valve actuator, using the same measures illustrated above.
Repeat the same operation up to the last valve actuator of the bus. A PG7 closing connector must be
mounted on the “OUT” port of the last actuator, without cables but with the rubber cap supplied.
Below find a typical actuators Bus connection layout:
To realise the connection cable for the "IN" and "OUT" ports of
the valve actuators, the indications must be followed:
Pos.
Description
Notes
1
Brown wire
+24 V
2
White wire
Digital signal
3(GND)
Green wire
0 V

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Connection layout to the ERCP pilot enclosure boxes
Connect the 3-wire cable coming from the IN connector of the first pilot enclosure box for pneumatic
drive (ERCP) present in the system, to the P11 connector of the Econet control unit, as shown in the
following layout:
Key:
1
Remote pneumatic valve
2
Connection pipe between remote pilot and the valve
3
Enclosure with built-in pilots for driving valves
4
Connection cabling between the ERCP pilot enclosure boxes
5
Connection cabling between the control unit and the pilots
enclosure box
Several pilots enclosure boxes are present in the system; connect them in
sequence in a way that the OUT connector of an ERCP pilots enclosure
box is connected to the IN connector of the next ERCP pilots enclosure
box.
Use a connection cable made with a DIN 43650 connector, to fix onto a
cylindrical base, making sure that the relative IP sealing gaskets are
mounted.
Complete installation by hermetically closing the OUT connector of the
last ERCP pilots enclosure box present in the system.

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Eco-Net 128 Control Unit
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Display and keyboard
There are 5 round keys on the front panel, used to access the
equipment functions.
When turned on, the display shows the name of the control unit
and the firmware/hardware version on the first page.
The next page shows the current operating conditions. The first
line shows the ΔP value measured by the internal transducer.
The second displays the current operating mode which, in the
case of an anomaly, alternates with the contextual signal.
The third line displays the progression of the cycle in progress
and the decrease of the pause time.
The last line indicates the function associated to each button.
By pressing the buttons, the brightness of the display on the main screen can be adjusted. In
the other screens, these are used to modify a value set or to consult the alarms.
By pressing the "L" button, access is given to the display language selection screen; select from the five
available: Italian, English, French, German and Spanish.
By pressing the "S" button, the cycle in progress stops. It can be resumed by pressing the button again.
It is active only in "manual" and manual-special" operating mode.
By pressing the “MENU” button, access is given to the selection screen, from where it is possible to use
the “” and “” buttons to scroll the items available.
Once the item desired is highlighted, press "OK" to access the corresponding parameters.
In the event of an alarm, the "MENU" button can be used to RESET (rearm) the event.

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Main Menu
The main menu can be accessed by pressing the "MENU" button on the main screen.
Using the “” and “” buttons, it is possible to select the category
desired and, by confirming with “OK”, the individual configuration
parameters are accessed.
Once the individual categories have been entered, use the “”
and “” buttons to select the parameter, and the “+” and “-“
buttons to modify the value.
The categories and parameters are organised as follows:
Basic Configuration
Description
Unit
of
measurement
Factory settings
Range
1.1
Operating Mode
Set the desired operating mode from
Automatic, Manual, Proportional and Special
Autom.
Manual
Special
1.2
Pulse time (ms)
The duration of opening (shot) of the valve
is set
msec
200
50
5000
1.3
Cycle time (sec)
The time interval between the opening of
one valve and the next is set
sec
20
1
7200
1.4
No. valves
The number of the valves connected to the
plant to control is set
3
0
127
1.5
Unit Measure dP
The unit of measurement of the pressure ΔP
reading is set from KPa, mBar, mm H2O
and Inch WC
KPa
KPa
Inch WC
1.6
dP start cleaning
The pressure value is set for the start of the
washing cycle (only if in Automatic or
Proportional Mode)
KPa/1000
800
0
10000
1.7
dP stop cleaning
The pressure value is set for the end of the
washing cycle (only if in Automatic Mode)
KPa/1000
400
0
10000

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Advanced Set Up
Description
Unit
of
measurement
Factory
settings
Range
2.1
dP Fan On/Off
The threshold value for fan on or off
recognition is set (used for Post-cleaning
function)
KPa/1000
100
0
10000
2.2
Cleaning fan off
The number of complete washes with fan off
is set
2
0
100
2.3
Pulse time (ms)
The duration of opening (shot) of the valve,
with fan off, is set
msec
200
50
5000
2.4
Cycle time (sec)
The time interval between the opening of
one valve and the next, with the fan off, is
set
sec
10
1
7200
2.5
Precoating
Enables the Precoating function.
Disable
Disable
Enable
2.6
dP Precoating
the pressure value to maintain the
Precoating function enabled is set. When the
value is exceeded, the control unit returns
to the original operating mode.
KPa/1000
1500
0
10000
2.7
Cycles Man. Spec.
The number of complete cycles to be carried
out in Special mode is set
2
0
50000
2.8
Pause Man. Spec.
The pause time between the cycles in
Special mode is set
Sec
20
0
43200

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Alarms
Description
Unit
of
measurement
Factory
settings
Range
3.1
dP Dirty filter
Set the pressure ΔP value to generate
the clogged filter alarm
KPa/1000
3000
0
10000
3.2
Enabling Min. dP
The broken hose alarm function is
enabled
Disable
Enable
Disable
3.3
Low Alarm Thres dP
Set the pressure ΔP value to generate
the minimum pressure alarm
KPa/1000
200
0
10000
3.4
Hourmeter Fan
The extraction functioning hour count
function is set through the input on
connector P17
Disable
Enable
Disable
3.5
Replace Filters (h)
The number of hours desired to signal the
filtering elements replacement
intervention is set. Signalling is subject
to the activation of the Hourmeter Fan
function.
Hours
1000
0
10000
Calibration / Test
Description
Unit
of
measurement
Factory
settings
Range
4.1
No. valves (+/- =ON)
The Bus valves are activated manually for
system test
1
1
127
4.2
Zero dP
The Zero ΔP pressure calibration is
performed, simultaneously pressing the
“+” and “-“ buttons.
KPa
0
0
100
4.3
4 mA Output
The 4mA output value, which corresponds
to Zero ΔP pressure, is set
650
0
3600
4.4
20 mA Output
The 20mA output value, which
corresponds to full scale ΔP pressure, is
set
3290
0
3600

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Counters
Description
Unit
of
measurement
Factory settings
Range
5.1
Hours Power
The control unit switch-on hour meter is
displayed.
HH
0
0
9999999
5.2
Pulse count
The Counter of the valve activation
connected to the Bus is displayed
0
0
9999999
5.3
Fan Hours
The filter fan switch-on hour meter is
displayed. The counter is subject to the
activation of the Hourmeter Fan function.
HH
0
0
9999999
Secondary Menu
The secondary menu is used to configure the status of the relays, the buzzer and the back-lighting of
the display, and is accessible as follows:
1) Press the “MENU” button from the main screen;
2) Holding down the second button from the left, press the "OK" button
The parameters are organised as follows:
Description
Parameter
Unit
of
measurement
Factory settings
Range
6.1
Display back-lighting time
The duration of the LCD back-lighting
is set in seconds. If set at “0” it is
always on.
Back-light T
Sec.
0
0
50000
6.2
Status of Relay 1 contact
The rest status of Relay 1 alarm
contact is set
RL1:No/Nc:
Close
Open
Close
6.3
Method of activation of Relay 1
The activation mode of Relay 1 during
the associated alarm is set
RL1: Mode:
Time
Pulse
Latch
6.4
Duration of activation of Relay 1
The duration of activation of Relay 1
during the associated alarm is set, if
the previous parameter is configured
"Time"
RL1: Time:
Sec.
00010
0
50000
6.5
Status of Relay 2 contact
The rest status of Relay 2 alarm
contact is set
RL2:No/Nc:
Close
Open
Close

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Continues....
Description
Parameter
Unit
of
measurement
Factory settings
Range
6.6
Method of activation of Relay 2
The activation mode of Relay 2 during
the associated alarm is set
RL2: Mode:
Time
Pulse
Latch
6.7
Duration of activation of Relay 2
The duration of activation of Relay 2
during the associated alarm is set, if
the previous parameter is configured
"Time"
RL2: Time:
Sec.
00010
0
50000
6.8
Status of Relay 3 contact
The rest status of Relay 3 alarm
contact is set
RL3:No/Nc:
Close
Open
Close
6.9
Method of activation of Relay 3
The activation mode of Relay 3 during
the associated alarm is set
RL3: Mode:
Time
Pulse
Latch
6.10
Duration of activation of Relay 3
The duration of activation of Relay 3
during the associated alarm is set, if
the previous parameter is configured
"Time"
RL3: Time:
Sec.
00010
0
50000
6.11
Enabling alarm buzzer
Buzzer enabling is set
Buzzer
Enabl
Enabl
Disab

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Operating mode
The operating modes of the Eco-Net 128 control unit are shown below. They can be activated by setting
the relative parameter of the "Main Set Up" menu.
Manual mode
In this mode, the Eco-Net 128 control unit operates as a programmable cyclic sequencer. The Bus valves
will be activated sequentially, at programmed intervals of time.
The activation times of the valves can be
programmed using the same menu; modifying the
"Pulse time" (Ts), "Cycle time" (Tc) and setting the
overall number of valves (Vx) that make up the
system.
Automatic mode
In this mode, the Eco-Net 128 control unit operates autonomously, performing the cleaning cycle only
when necessary. The cycle starts when the pressure threshold set in the "dP Start Cleaning" parameter is
exceeded.
The valves are activated in sequential mode, following the times indicated in manual mode.
If the pressure differential drops below the "dP Stop
Cleaning" value set, the cleaning cycle will be
suspended and will start again when the "dP Start
Cleaning" value is exceeded.

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Proportional mode
In this mode, the Eco-Net 128 control unit functions autonomously, starting the cleaning cycle when the
pressure threshold set in the "dP Start Cleaning" parameter has been exceeded and sequentially
activating the valves with programmed pulse time and cycle time.
If, at the end of valve activation, the pressure
differential drops by over 15% with respect to the
"dP Start Cleaning" value, the cycle is suspended
to resume when this value is exceeded again.
If the pressure differential does not drop by over
15% at the end of activation, the control unit will
proportionally reduce the "Cycle time" (Tc), until a
minimum time equal to 10 sec is reached. This limit
has been set to prevent criticality in the
compressed air supply system, connected to the
cleaning filter.
Special manual mode
In this mode, the Eco-Net 128 control unit activates the valves with the times indicated in manual mode
(Ts, Tc), for the number of cycles programmed in the "Cycles Spec. Man." (nS) parameter, introducing a
pause between one cycle and another with a value corresponding to the "Pause. Man. Spec.”(pS)
parameter. These parameters are found in the “Advanced Set Up" menu.
When the programmed special manual cycles
have ended, the control unit goes into stand-by
until the operator re-starts the cleaning cycle by
pressing the "S" (Start/Stop) button on the front
panel
This mode is especially suited for small filters or filters where the pressure differential has low values or
the inverter keeps pressure constant and it is hard to work with automatic and proportional modes.

U s e r I n s t r u c t i o n s
Eco-Net 128 Control Unit
InMn 26 UCESTD
it Rev.1.02
TURBO s.r.l. Dust Filter Components
Via Po 33/35 20811 Cesano Maderno (MB) Italy Tel ++39 0362 574024 Fax ++39 0362 574092
19
Functionality
Cleaning with fan off (Post-Cleaning)
This function allows a cleaning cycle to be run with the fan off. Its activation is automatic in "Auto matic"
and "Proportional" modes, when the pressure differential drops over the value set in the Fan On/Off dP"
parameter of the Advanced Set Up menu. It is possible to repeat the function by configuring the "Fan
Off Cleaning" parameter.
Dedicated parameters are available to carry out the Post-Cleaning function; "Pulse time" and "Cycle
time" in the Advanced Set Up menu.
The function can also be carried out in “Manual”
and “Special Manual” operating modes,
connecting the contact of the fan status to
terminals 4-5 of connector P15.
Precoating
The function allows precoating to be performed. This is a specific treatment of the filtering elements,
which is carried out with a powder suitable for the purpose, known as "precoating powder". During this
phase, the cleaning cycle is suspended until the “dP precoating” threshold has been reached. This can
be set by the user in the Advanced Set Up menu, as also the activation parameter.
Once the precoating dP threshold has been
exceeded, the control unit will begin the cleaning
cycle, automatically disabling the precoating
function.
Setting number of outputs
It is possible to select the number of outputs (solenoid valves) with which the control unit will carry out
the cleaning cycle, respecting the sequential order, from the first to the last solenoid valve, set in the
basic configuration parameter.
Enabling cleaning from remote control
The control unit has an input contact for remote enabling which, when open, cuts off all control unit
functions. A pressure switch can be connected to the remote enabling input of a PLC or an intelligent
control system.

U s e r I n s t r u c t i o n s
Eco-Net 128 Control Unit
20
TURBO s.r.l. Dust Filter Components
Via Po 33/35 20811 Cesano Maderno (MB) Italy Tel ++39 0362 574024 Fax ++39 0362 574092
InMn 26 UCESTD
Rev.1.02 it
The remote enabling input is found on terminals 6-7 (terminal P16) of the control unit. A voltage-free
contact (switch, relay contact,...) must be connected to this input which, when closed, enables the
control unit to function. Instead, with the contact open, the control unit will remain powered in stand -by
to receive consent, without performing any operation.
Output 4-20mA
Current-Loop re-transmission of the pressure dP value, read by the control unit internal transducer, is
available at terminals 14-15 (terminal P14). This function is useful for sending information of the pressure
reading to a remote device (e.g. in a control room).
By accessing the parameters of the
Calibration/Test menu, the start and full scale
value of the 4-20mA output can be calibrated.
Input 4-20mA
An input in current-Loop is available (only in versions equipped) at terminals 12-13(terminal P12), for
connection to a triboelectric probe, which allows to measure the concentration of dust particles in the
environment.
Alarms
Two relays with voltage-free contact are available on the control unit, which will be activated on the
occurrence of an alarm, switching-over their contact from the rest condition to the opposite condition.
Using the secondary menu, the user can configure the status of the relay contact, the alarm mode and
any activation time.
Relay
Terminals
Terminal
Function
RELAY 1
18-19
P5
dP minimum (if activated from the menu)
dP dirty filter
Replace Filters (if activated from the menu)
RELAY 2
16-17
P5
Solenoid valve anomaly
The alarm settings are accessible from the corresponding menu. The alarm event will be signalled in a
flashing manner also on the LCD. Using the “+” and “-” buttons, it will be possible to scroll the alarm
events occurring and they can be silenced by pressing the “RESET” button.
The internal piezoelectric buzzer will signal the event in conjunction with an alarm. However, the buzzer
can be disabled using the secondary menu.