40m
20m
L2
A1
A2
A1+
A2-
+
+
R
Reed Switch
Reed Switch
2K2 - 2W
D = 20 ~ 40m
22R 5W
R
220R 5W
{
Manual
C.01/Nov2018
Flow Switches
Models for G 3/4” Port
FC Series
IMPORTANT !
YOU MUST CHECK BEFORE INSTALLATION
Questions? Call us BEFORE you install:
AC Current:
Use
K8
*
Filter
in parallel with the coil (A1 A2) of a contactor or relay.
DC Current:
Use
KD
*
Filter
in parallel with the coil (A1 A2) of a contactor or relay.
*
For sale on
Direct connection
to the
sensor
Use
22R 5W
*
resistor
in series
Use
24Vdc Voltage
•
AUXILIARY CONTACTOR (mini contactor) mind the distance:
•
SOLENOID VALVE or POWER CONTACTOR:
Use
mini contactor
or
auxiliary relay
.
• ELECTRONIC EQUIPMENT:
› Interface relay/relay coupler:
Use
4K7 10W resistor.
› Timing relay and frequency inverter:
Use
220R 5W
*
resistor.
Follow the instructions below to protect and extend the shelf life of the sensor:
20m
40m
Operation
! Never connect the
sensor directly to a motor,
pump, lamp or any other
load over 20W.
Always use a contactor
or relay.
•
Liquids with solid particles and/or fouling
require prior testing. Use
filter before the Sensor to prevent the internal piston from locking. Not
recommended for industrial water waste.
•
Liquids with ferrous and/or magnetic particles
require technical
analysis: the Sensor contains magnetic components inside. Use a
magnetic filter before the Sensor to avoid deposition/settling that will
prejudice its operation.
The sensors work in all voltage and current ranges displayed in the table bellow:
Operating Voltage
Max. Switching Power Max. Switching Current
Peak Current
110Vac
20VA
0,2A
0,5A @20ms
220Vac
20VA
0,1A
0,5A @20ms
5Vdc
2,5W
0,5A
1A @20ms
12Vdc
5W
0,5A
1A @20ms
24Vdc
10W
0,5A
1A @20ms
24Vac:
NOT recommended
Term of Warranty
On
available technical specifications
For installations according to this guide:
02 (two) years warranty.
Incorrect installation cancels the warranty.
All Sensors have been tested and approved during the manufacture process.
Typical Connection to Contactor
electrical installation (AC)
(included)
Installing the snubber filter extends the
lifespan of the sensor’s electrical contact.
*
On
check models and prices of Filters
Electrical Contact of Sensors
- Attention to Install
Note:
Reed Switches have reached over one million operations in tests with
Reed Switch 20W/VA: Protect the Electrical Contact of your Sensor
Reed Switches are hermetically sealed contacts
actuated by a magnetic field.
The life expectancy of a reed switch refers to a
kind of load to be used. Reed Switches of the highest reliability are applied in
our sensors, and their life expectancy can reach above two million operations.
However, when they are switching lamps, inductive or capacitive loads, this
number may decrease.
Switching Power
It is important to consider that the power specified by an electrical load is
often referred to the permanent working state.
For higher power, use an auxiliary relay or contactor as recommended below,
or similar.
This resistor dampens the peak voltage caused by the
capacitance of cables and electronic equipment input.
? Risk of failure (welding of the Reed Switch Contact)
due to CAPACITANCE, which
can occur depending on the distance and cable used in the connection to the contactor.
K8
*
Filter mounted in
parallel with the coil of an
AC contactor, increases the
contact life.
• Switching inductive loads
0.1µF 400V
PROTECTION PROCEDURES BELOW DESCRIBED CAN IMPROVE
THE REED SWITCH PERFORMANCE
• Connecting the sensor to a contactor in long distances, use resistor:
• Connecting the sensor to an electronic equipment:
Important
: For installation with
relay coupler
, use 4K7 10W resistor.
•Timing relay
•Frequency inverter
•Etc.
Flow Switches and Level Switches for liquids
KD
*
Filter mounted in
parallel with the coil of a
DC relay, increases the
contact life
.
BY448
or
1N4007
Important
: For distances
greater than 40m
, use 24Vdc voltage.
K8
*
K8
*
KD
*
+55 (15)
3032.9190
+55 (15)
3032.9190
Siemens 3RT1015 Contactor
Initial: 31.7VA
Rated: 5.1VA
Contactor
Contactor
K8
for AC
KD
for DC
