MAC3 Sensopress LCD User manual

Sensopress LCD
User Guide
Made in Italy
Cod. /620020102 Dis.7208 Rev.00 06-2015 Eng

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1!WARNINGS .................................................................................................................................... 3!
2!GENERAL REMARKS ................................................................................................................... 4!
2.1!Product description ................................................................................................................... 4!
2.2!Advantages and Benefits .......................................................................................................... 4!
2.3!Operating Conditions ................................................................................................................ 4!
2.4!Technical features ..................................................................................................................... 5!
3!INSTALLATION ............................................................................................................................. 6!
3.1!Electrical Connection ................................................................................................................ 6!
4!OPERATION AND USE ................................................................................................................. 9!
4.1!Front Panel Sensopress LCD .................................................................................................. 9!
4.2!Visualization Menu .................................................................................................................. 10!
4.2.1!Auto Mode .................................................................................................................. 10!
4.3!Setting menu ........................................................................................................................... 11!
4.3.1!CHANNEL Mode ........................................................................................................ 12!
4.3.2!LOW Mode ................................................................................................................. 13!
4.3.3!HIGH Mode ................................................................................................................. 13!
4.3.4!MANUAL Mode ........................................................................................................... 14!
4.3.5!DISPLAY Mode .......................................................................................................... 15!
4.3.6!PROTECT Mode ........................................................................................................ 15!
5!CALIBRATION OF WATER’S LEVEL SCALE ............................................................................ 16!
5.1!CALIB Mode ............................................................................................................................ 17!
5.1.1!Zero Calibration .......................................................................................................... 17!
5.1.2!High Level Calibration ................................................................................................ 18!
6!Electrical Noise ........................................................................................................................... 19!

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1 WARNINGS
DANGER
Risk of persons and things injury if you do not comply with requirements
ELECTRIC SHOCK
Risk of electrical shocks if you do not comply with requirements
WARNING
Risk of damages to property or to the environment if you do not comply with
requirements.
WARNING
Before installing and using the product read this book in all its parts. Installation and
maintenance must be performed by qualified personnel in accordance with current
regulations.
MAC3 will not be held responsible for any damage caused by improper or prohibited
use and is not responsible for any damages caused by a not correct installation or
maintenance. The use of non-original spare parts, tempering or improper use, make
the product warranty null.
WARNINGS
Sensopress LCD must be installed following the description on the “Installation”
paragraph.
Sensopress LCD is an electric device, possible water seepage in contact with the
electrical components can be damaging.
DANGER
Sensopress LCD is CE labelled but in the case of wrong installation can cause
electromagnetic interference.
Verify the correct operation of other electronic devices with Sensopress LCD on and
running.
Malfunction of equipment can be harmful to people and property.
In the case of electromagnetic interference stop the plant and contact technical
support.
Before any intervention make sure Sensopress LCD is disconnected from the
electricity supply.
Do not attempt operations with Sensopress LCD open.
The connection of Sensopress LCD to the electric panel must be carried out by
qualified personnel in accordance with current norms .
Sensopress LCD must be connected to an efficient ground system.

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2 GENERAL REMARKS
This manual intends to provide essential information for the installation, use and maintenance of the
product Sensopress LCD.
It's important that the user and / or installer reads this manual in all its parts before installing
and using the product.
An improper use may lead to failures and loss of guarantee.
Please always specify the exact model number parts to our sales and assistance service when asking
for technical information or spare parts to our trade and assistance service.
there are to be requested technical information or spare parts
For instructions, situations and events not covered by this manual, please contact the customer
service.
2.1 Product description
Sensopress LCD is a measuring and high-tech electronic level controller that can be used in sandy
drinkable waters, in liquid food products or if availing oneself with an adequate plant design, it can
also be used in filthy waters or corrosive liquids.
The measurement is committed by a very perceptible pressure sensor. Its signal once transformed
and elaborated by a microcontroller is converted in “height of water column” measured in water cm.
Note: all the visualized values are in mBar. The correct value in water cm is obtained by augmenting
the pressure in mBar of 2 % (1.973 % a 4°C).
Sensopress LCD can be produced in two versions: with a single output or with 4 outputs in the
multichannel version.
Sensopress LCD is a device which allows to start a relay ( 4 relays in the multichannel version) in
function of differential threshold levels set-up in the data storage by the user.
2.2 Advantages and Benefits
Thanks to its LCD display in which they are visualised all the information concerning the device
and to the three function keys with which it is possible to interact so that to change the parameters,
Sensopress LCD can be easily used.
Sensopress LCD in the multichannel version, by using just a sensor, allows to supervise the start of
4 relays in function of 4 different differential threshold set-up by the user.
2.3 Operating Conditions
• Room-temperature: between +5°C and +40°C
• Maximum relative Humidity: 50% to +40°C (no condensation)
• Sensopress LCD must be installed in locations protected from bad weather and frost.
• The Sensopress LCD sensor can be used in waters free of chemically aggressive substances
(ph 5÷9)
• Sensopress LCD sensor cannot be used with abrasive liquids, solid fibrous substances,
flammable explosive or aggressive liquids.

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2.4 Technical features
Power Supply
TSL00Y0100
230V~ 50 ÷ 60 Hz
TSL00Y0400
230V~ 50 ÷ 60 Hz
TSL00X0100
117 V~ 50 ÷ 60 Hz
TSL00X0400
117 V~ 50 ÷ 60 Hz
Consumption
5,5 VA
Visualisation
LCD 2x16
Operating temperature
0 ÷ +50 °C
Storage Temperature
-10 ÷ +60 °C
Measuring range
-0.020 ÷ 9 m H2O
Maximum overpressure
20 m H2O
Accuracy of measurement
± 1% FS
Resolution
1 cm H2O
Minimum differential obtainable
2 cm H2O
Output Relays
TSL00Y0100
n° 1
(10A 250V~)
TSL00Y0400
n° 4
n° 1 (10A 250V~) + n° 3 (2A 250V~)
TSL00X0100
n° 1
(10A 250V~)
TSL00X0400
n° 4
n° 1 (10A 250V~) + n° 3 (2A 250V~)
Housing
NORYL UL94V0
Dimensions
105x90x73 mm
Weight
450 g
Protection degree
IP20
Approval
CE
Sensors for Sensopress LCD
Code
PRS00B1A1M20000
Housing
BRASS
Principle operation
Ceramic Capsule piezoresistive, calibratedand temperature
compensated
Dimension
32x76 mm
Weight
840 g
Cable
PVC (2 fili + compensation tube) [o PU + SCREEN at instance]
Cable length
20 m
Installation
In or outside the water tank
Measuring range
0 ÷ 9 m H2O
Maximum overpressure
20 m H2O
Temperature
0 ÷ 50 °C
Storage
15÷30 V 20mA max (as from equipment)
Output
4÷20mA Rt=250 Ohm max (as on the device)
Long term stability
± 0,3%f.s./year at 25°C
Thermal Shift of zero
± 0,02%f.s: /°C
Thermal Shift of span
± 0,01%f.s./°C
Note
It can be used in every kind of water with ph between 5 ÷ 9. For the use
with different liquids, please contact the factory.

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3 INSTALLATION
3.1 Electrical Connection
Below the diagrams of the electric connection for the two versions, the one with 1 output and other
with 4 outputs.
• Avoid places where it can be possible the formation of condensation.
• Avoid places where the temperature can decrease under (0°C).
The device is provided with a terminal to which is possible to connect the Sensopress LCD supply
wires and also the connecting sensor’s wires and those of the relay’s output.
ATTENTION:
All the inner parts of the device are on electricity grid. In case of a contact can bring to death.
All installation and maintenance work must be performed by qualified personnel with proper
tools!
The staff must use appropriate safety devices. In case of failure, disconnect or turn off the power
supply.
Safety devices :
− Ground protection
− Use an automatic residual-current device

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Function
Terminal
Description
Supply
1
Neutral
N
2
Ground GND
3
Fase
L
4
--
5
--
6
--
7
--
8
--
9
--
10
--
11
--
12
--
13
--
14
--
15
--
Sensore
16
Sensor
Mass *
17
Riturn
Sensor
RETURN
18
Supply
Sensor
+15V
19
--
20
--
Relay
Output
10A 250Vac
10A 30Vdc
21
Contact
Normally
Closed NC
22
Contact
Common C
23
Contact
Normally
Open NO
24
--
Figure 1. Connections for the version with a single output (TSL00Y0100 e
TSL00X0100)
* For the sensor with the PVC cable, the sensor’s ground is the brown wire, for the sensor with the
polyurethane cable PU + screen is the braided shield one.

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Function
Terminal
Description
Power Supply
1
Neutral
N
2
Ground GND
3
Fase
L
Relay
Output 2
2A 250Vac
2A 30Vdc
4
Normally
OpenNO
5
Common C
6
Normally
Closed NC
Relay
Output 3
2A 250Vac
2A 30Vdc
7
Normally
Open NO
8
Common C
9
Normally
Closed NC
Relay
Output 4
2A 250Vac
2A 30Vdc
10
Normally
Open NO
11
Common C
12
Normally
Closed NC
13
--
14
--
15
--
Sensor
16
Sensor
Mass *
17
Riturn
Sensor
RETURN
18
Power Supply
Sensor
+15V
19
--
20
--
Relay
Output 1
10A 250Vac
10A 30Vdc
21
Normally
Closed NC
22
Common C
23
Normally
Closed NO
24
--
Figure 2. Connections for the version with 4 Outputs (TSL00Y0400 e
TSL00X0400)
* For the sensor with the PVC cable, the sensor’s ground is the brown wire, for the sensor with the
polyurethane cable PU + screen is the braided shield one.

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4 OPERATION AND USE
With Sensopress LCD, is possible the managing of a differential threshold for the liquid control (4
differential threshold with the multi-channel version).
After having accomplished accurately the electric installation is possible to proceed with the starting of
the device.
Sensopress LCD has a liquid crystal display in which is possible to visualize all the informations
concerning the device. It has also three buttons with which is possible to interact and change the
parameters. With these is possible to determine the intervention points in which to start or to turn off a
control relay (4 in the multi-channel version), of any other power device (pump, engine), or warning
device (lights, alarm, etc) which have compatible features with those of the device’s relay (relays in the
multi-channel version) of the device (look at next table).
Output Relay
Single Output Version
Multi-channel versione
Channel 1
10A 250Vac / 10A 30Vdc
10A 250Vac / 10A 30Vdc
Channel 2
Not present
2A 250Vac / 2A 30Vdc
Channel 3
Not present
2A 250Vac / 2A 30Vdc
Channel 4
Not present
2A 250Vac / 2A 30Vdc
In the single output version the relay turns on in function of the set differential threshold levels. The
relay turns on when the liquid reaches the high threshold and it turns off when the liquid while
decreasing reaches the low threshold.
In the multichannel version we have 4 relays available which can manage 4 different and indipendent
differential thresholds. The relays turn on when the liquid reaches the threshold level set up for that
channel and they turn off when the liquid decreases to the set up low threshold level, always related to
that channel.
There is the possibility to disable the relays of the channel one does not want to use. The relay of the
disabled channel does not commute, regardless of the threshold levels.
4.1 Front Panel Sensopress LCD
When it turns on the device’s display shows the name of the manufacturer MAC3, the software version
V20 and the product name SENSOPRESS
Figure 3
No/- button
Menu Button
Display LCD alphanumeric
Yes/+ button

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4.2 Visualization Menu
4.2.1 Auto Mode
Just after the initial frame the device shows the frame corresponding to the AUTO Mode.
The auto mode shows, how it is indicated in Figure 4, the following parameters:
• The chosen channel (in the single output version is only CH:1)
• The relay’s state corresponding to the chosen channel is specified on the display (on: |; off:
o). In Figure 4 the relay is on.
• The measure in centimetres of the liquid’s level. (274 cm in Figure 4).
• The low intervention’s threshold referred to the chosen channel and specified on the display.
In Figure 4, the low threshold for channel 1 is 99 cm .
• The high intervention threshold referred to the chosen channel and indicated on the display.
In Figure 4 the high threshold for channel 1 is 301 cm.
Figure 4
In the AUTO mode the function buttons Yes/+, No/- are not turned on
By pushing the Menu button it is possible to watch the current mode and the request of transfer to
other modes, how is specified in the example of Figure 5.
Chosen channel
Measured level
L low threshold
set-up on the
chosen channel
The relay’s state
corresponds to the
chosen channel:
| = on
o = off
Active Mode
H High
threshold set-
up on the
chosen channel

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Figure 5
The auto mode is the default one, and if the device is in a different mode, after some minutes of
inactivity it goes on the AUTO mode.
After the choise of the wanted mode with the Menu button, push button Yes/+ to enter it.
4.3 Setting menu
By pushing the Menu button it is possible to choose between the different modes of visualising and to
set-up the device.
in particular there are the following modes:
Mode
Accomplished Operation
AUTO
Indicates :
• The water’s level in the tank
• The chosen channel
• The low and the high threshold set-up for the chosen channel
• The relay’s state of the chosen channel
CHANNEL
Only with the multi-channel version
• Channel selection both for visualization in AUTO and for the set-up of the
intervention’s threshold in LOW and HIGH.
• Enabling and disabling of the channels
LOW
Set-up of the low threshold for the chosen channel
HIGH
Set-up of the high threshold for the chosen channel
MANUAL
Manual set-up of the outputs
DISPLAY
Display’s backlight adjustment
PROTECT
Insertion of the device’s protection
CALIB
Fine-tune the water’s level scale
Current mode
Changing mode
request

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4.3.1 CHANNEL Mode
This mode is possible only with the multi-channel version and it is used for :
• To enable or not the wanted channel.
o !Attention: if the channel is disabled, the corresponding relay, even if the liquid’s
level oversteps the set-up thresholds for that channel, does not get active.
• Choose the channel to modify the intervention thresholds.
• Choose the channel to visualise when in the AUTO mode.
It is possible to enter the CHANNEL mode from any other mode, by choosing the sign GO to
CHANNEL with the Menu button and by pushing Yes/+.
To enable/disable the channel:
• Choose the channel by pushing the button Yes/+, the chosen channel is indicated on the
low left side of the display as shown in Figure 6.
• Push the button No/- to enable/disable the indicated channel. The indication of the channel’s
state is visualized on the low right side of the display as shown in Figure 6.
• In particular:
o ACTIVE = enabled channel
o INACTIVE = disabled channel
The channel that stays chosen on the display, no matter if active or not, is the one visualised in the
AUTO mode and it is the one on which it is possible to change the thresholds in LOW and HIGH
mode.
Figure 6
Current mode
Channel’s state:
ACTIVE: the relay commutes in function of the set-up
thresholds.
INACTIVE: the relay does not commute even if the threshold
overstep.
To enable/disable the channel push button No/-
Chosen channel.
Push the button Yes/+
to change channel

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4.3.2 LOW Mode
This mode is necessay for choosing the low threshold of intervention for the chosen channel.
It is possible to enter the LOW mode from whatever other mode by choosing the sign GO to LOW
with the button Menu and by pushing yes/+.
The LOW mode allows to set-up the minimum point of intervention. On the display it is shown the
chosen channel ready to be modified (in the single channel version it is shown LOW), the current
minimum threshold identified by the user (HIGH: 638 cm in Figure 7) and the minimum level to be set-
up (Low Level: 012 cm in Figure 7). By pushing the Yes/+, No/- buttons it is possible to increase or
decrease the wanted minimum threshold; the minimum threshold cannot exceed the maximum one; if
by mistake the minimum threshold overtakes the maximum one, the value of the minimum one will
start again from 000. With the Menu button it is possible to memorize the set-up value and to pass to
the changing state request; if no button is pushed, the device after a few minutes goes to the AUTO
state.
Figure 7
To set-up the low threshold of a channel which is not the selected one it is necessary to go to the
CHANNEL mode and choose the wanted channel by following the instructions described in paragraph
4.3.1 CHANNEL Mode.
4.3.3 HIGH Mode
This mode is necessary for setting-up the high threshold of intervention for the chosen channel.
It is possible to enter the HIGH Mode from whatever Mode by selecting the sign GO to HIGH with the
Menu button and by pushing Yes/+.
The HIGH Mode allows to set-up the maximum point of intervention. On the display it is shown the
selected channel ready to be modified ( in the version with a single output it is shown HIGH), the
current minimum threshold (LOW: 099 cm in Figure 8) and the maximum level to set-up (HIGH
Chosen channel
In the single
output version
it is shown
LOW
Current set-up high threshold for
the chosen channel.
Low threshold possible to set-up
with the Yes/+ e No/- button for the
chosen channel

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LEVEL: 301 cm in Figure 8). By pushing the Yes/+, No/- buttons it is possible to increase or to
decrease the wanted maximum threshold; the maximum threshold cannot be lower than the minimum
one; if this gets reached the device will start again from the point 899 cm; with the Menu button it is
possible to memorize the set-up value and it is possible to go to the changing state request; if no
button is pushed the device goes to the AUTO state.
Figure 8
To set-up the high threshold of a channel which is not the chosen one it is necessary to go to the
CHANNEL mode and choose the wanted channel by following the instructions described in paragraph
4.3.1 CHANNEL Mode
4.3.4 MANUAL Mode
The MANUAL Mode is necessary to activate or disactivate manually the relays of the different
channels.
It is possible to enter the MANUAL Mode from any other mode by selecting the sign GO to MANUAL
with the Menu button and by pushing Yes/+.
On the display it is shown the state name (Manual) and the relay position (Relay: OFF, Relay: ON)
and the number of the channel correspondent to the relay. (in the single output version there is no
channel indication)
In the MANUAL state , by pushing button Yes/+, it is possible to intervene on the relay, so that to pass
from ON to OFF
Button No/- is used to select the channel on which one wants to intervene manually.
The activating of the relay in the MANUAL mode is not linked to the channel state. It can be enabled
or disabled.
With the Menu button it passes to the state of chaning request.
NOTE
!Attention: in the MANUAL state the device does not go back automatically to the AUTO state!
If needed to leave the MANUAL state use the Menu button as usual.
Chosen channel
In the single
output version
it is shown
HIGH
High threshold possible to set-up,
for the chosen channel, with the
Yes/+ e No/- buttons
Low threshold currently set-up for
the chosen channel

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Figura 9
4.3.5 DISPLAY Mode
This mode is necessary for managing the backlight of the display.
It is possible to enter the DISPLAY mode from any other mode by selecting the sign GO to DISPLAY
with the Menu button and by pushing Yes/+.
The DISPLAY state allows the control of the liquid crystal display’s backlight.
At power-up the device’s backlght is on, and it will turn off automatically after 5 minutes of the keys not
pressed. By pushing the Yes/+ button it is possible to set-up the backlight mode.
With the set-up of Figure 10, the backlight is continuous, whereas with the one of Figure 11 becomes
timed (5 minutes after the last pushed button).
The timer that riactivate the timed backlight starts again by pushing any button.
With the Menu button we go to the request of state changing; if no button is pushed the device goes
to the AUTO state.
Figure 10 Figure 11
4.3.6 PROTECT Mode
In the PROTECT mode there is the possibility to activate or disactivate the device’s protection so that
to prevent the change of parameters from not authorised persons;
On the start the device’s protection is disactivated.
It is possible to enter the PROTECT mode from any other mode by selecting the sign GO to
PROTECT with the Menu button and by pushing Yes/+.
La password is a Yes/+ and No/- key combination and it is set-up in the factory. This is not modifiable.
The series to insert is: No/-; Yes/+; Yes/+; Yes/+; No/-
Current mode
Chosen channel.
To change channel
push button No/-
The relay’s state correspondent to the chosen
channel.
To change state push button Yes/+

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To enable the protection it is necessary to enter the PROTECT mode and by pushing the Yes/- button
and to select Enabled to enable it and Disabled to disable it.
Figure 12
NOTE:
If one decides to activate the device’s protection, to enter any state, on the display it will be visualised
ENTER PASSWORD, as in Figure 13 it will be requested a password composed of five characters
and introduced with the combination of Yes/+ e No/- buttons; if the combination is correct there will be
the possibility to enter the planning change; if the combination is wrong no change will be possible.
For an easier use, once written the password the device memorize it for about 10 minutes.
By this time it is not necessary to re-enter the password also if entering the modes where this is
requested.
At the end of this time, the password, to enter the mode where this is necessary, is asked again.
The password is not necessary to enter the AUTO and the CHANNEL mode.
Figure 13
5 CALIBRATION OF WATER’S LEVEL SCALE
The devices produced by MAC3 are calibrated, this means they can measure the water’s level in the
expected measure field and with the specifications indicated by MAC3.
In this respect no intervention is required by the user.
For various reasons, such as the aging of components, sensor replacement, a change in the sensor’s
setup, etc., it might be necessary a new calibration. If requested, this can be realized by the MAC3
specialists
An alternative can be the feature given for this purpose by the device, thanks to this one the user as
well can autonomously do the calibration
There should be the possibility to put the pressure sensor through two known levels with good
approximation as specified below.

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5.1 CALIB Mode
It is possible to enter the CALIB mode from any other mode by selecting the sign GO to CALIB with
the Menu button and by pushing Yes/+.
In the CALIB mode it is possible to save the reading realized by the sensor that has been put through
level zero and through the maximum level that can be fit by the user.
This makes the reading correct in all the expected measure field.
When entered this, there is the visualization of Figure 14.
By pushing the No/- button it is possible to enter the procedure of zero setting.
By pushing the Yes/+ button it is possible to enter on the procedure of the setting of the maximum
level.
Figure 14
5.1.1 Zero Calibration
It is possible to enter the zero calibration by pushing the No/- button after entered the CALIB.
On the display it is visualised the screen of Figure 15.
Figure 15
Make sure the sensor is at zero level.
Push the Menu button to enter the zero setting and it is visualized the screen of Figure 16.
Push button No/– to calibrate the zero.
Push button Yes/+ to calibrtae the high level.

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Figure 16
By pushing the Yes/+ button it is possible to make the zero setting and on the display it is shown the
writing SAVING…….for a few seconds, after which the device turns in the AUTO Mode.
By pushing the Menu button there is the possibility to go out from the calibration procedure without
saving the zero. It turns back to the AUTO mode.
5.1.2 High Level Calibration
It is possible to enter the calibration of high level by pushing the Yes/+ button after entered the CALIB.
Make sure the sensor is put through the water column which needs to be set-up.
On the display is visualized the screen of Figure 17.
Figure 17
With the Yes/+ and No/- buttons it is possible to set-up the water column value to which the high level
calibration needs to be done and to which is put through the sensor.
Push the Menu button to enter the saving of the high setting level and it is visualized the screen of
Figure 18.
Figure 18
By pushing the Yes/+ button it is possible to do the saving of the set-up high level and on the displays
it is given the writing SAVING….. for a few seconds, after this the device turns in the AUTO mode.

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By pushing the Menu button there is the possibility to leave the calibrating procedure without saving
the high level. It turns back to the AUTO mode.
6 Electrical Noise
If the device is arranged in a place with electromagnetic noise, or if the relay’s contacts supply some
specific loads, the device may show anomalous behaviors.
The software is able to take measures and restore the correct operation.
If there are inductive loads particularly irksome, with disturbances that cause very frequent anomalies,
it is adviced the use of a snubber cicuit, connected in parallel to the load.
Make the snubber circuit by connecting a resistor in series with a capacitor.
Figure 19 shows an example of connection.
Advised values : R1=47 Ohm ½ W, C1=0,1uF 250 Vac poliestere.
Figure 19

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50013!-!Campi!Bisenzio!(FI)!ITALY!
Tel.!+39.055.88.77.672!-!+39.055.88.77.372!
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