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SLF3S-1300F Liquid Flow Sensor
Made to Measure – The Next Level in Liquid Flow Sensing
▪ Low flow sensing up to ±40 ml/min
▪ Calibrated for H2O and IPA
▪ Temperature compensated
▪ Turn down ratio 200:1 or better
▪ Very compact and light-weight form factor
▪ Response time below 20 ms
Product Summary
The SLF3S-1300F is Sensirion’s compact liquid flow sensor designed for high-volume applications. It enables
precise and reliable measurements of dynamic liquid flow rates up to 40 ml/min bi-directionally.
The SLF3S-1300F sensor features a digital interface (I2C) via a 6-pin standard electrical connector.
The SLF3S-1300F builds on the latest generation CMOSens® sensor chip that is at the heart of Sensirion’s flow
sensing platform and allows achieving an outstanding performance. The patented CMOSens® technology
combines the sensor element, signal processing and digital calibration on a small CMOS chip. The well-proven
CMOS technology is perfectly suited for high-quality mass production and is the ideal choice for demanding and
cost-sensitive OEM applications.
Benefits of Sensirion’s CMOSens® Technology
▪ High reliability and long-term stability
▪ Best signal–to-noise ratio
▪ Industry-proven technology with a track record of more than 20 years
▪ Designed for mass production and high process capability
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Contents
1 Sensor Performance 3
2 Specifications 5
3 Sensor Output Signal Description 6
4 Digital Interface Description 10
5 Fluidic Specifications and Connections 15
6 Mechanical Specifications 15
7 Mechanical Mounting of the SLF3S-1300F Sensor 16
8 Ordering Information 18
9 Packaging Information 18
10 Important Notices 19
11 Headquarters and Subsidiaries 20
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1 Sensor Performance
The following Table 1 and Table 2 list the specifications of the SLF3S-1300F liquid flow sensor for. The product comes
fully calibrated for water (H2O) and Isopropyl alcohol (IPA).
Parameter
SLF3S-1300F
Unit
H2O Full scale flow rate
±40
ml/min
H2O Sensor output limit1
±65
ml/min
Accuracy2
(whichever error is larger)
±5
% of measured value
0.05
ml/min
Repeatability2
(whichever error is larger)
±0.5
% of measured value
0.01
ml/min
Temperature coefficient3
(additional error / °C; whichever is larger)
0.2
% measured value / °C
0.002
ml/min / °C
Mounting orientation sensitivity4
<0.02
ml/min
Table 1: Specifications for liquid flow sensor SLF3S-1300F (all data for medium H2O, at 23 °C, and for VDD 3.5 V)
Parameter
SLF3S-1300F
Unit
IPA Full scale flow rate
±40
ml/min
IPA Sensor output limit1
±65
ml/min
Accuracy
(whichever error is larger)
±10
% of measured value
0.2
ml/min
Repeatability
(whichever error is larger)
±0.5
% of measured value
0.01
ml/min
Temperature coefficient3
(additional error / °C; whichever is larger)
0.2
% measured value / °C
0.004
ml/min / °C
Mounting orientation sensitivity4
<0.05
ml/min
Table 2: Specifications for liquid flow sensor SLF3S-1300F (all data for medium IPA, at 23 °C, and for VDD 3.5 V)
1
Flow rate at which the sensor output saturates. See section 1.1 for performance between full scale and saturation point.
2
Accuracy respectively repeatability specifications valid for flow rates below ±20 ml/min. See the charts in section 2 for the accuracy and
repeatability specifications, respectively, between ±20 ml/min and full scale.
3
Additional accuracy error in case liquid and ambient temperatures are similar but both deviating from 23 °C.
4
Maximum additional error when flow channel is vertical.
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1.1 Specification Charts
The SLF3S-1300F liquid flow sensor shows bi-directional, linear transfer characteristics. The product comes fully
calibrated for water (H2O) and Isopropyl alcohol (IPA).
Figure 1: Left: Liquid flow sensor accuracy and repeatability across the flow range of the SLF3S-1300F. Relative error in ±% of measured value
for H2O. Right: Liquid flow sensor accuracy and repeatability across the positive flow range of the SLF3S-1300F. Absolute error in ml/min for
H2O.
Figure 2: Left: Liquid flow sensor accuracy and repeatability across the flow range of the SLF3S-1300F. Relative error in ±% of measured value
for IPA. Right: Liquid flow sensor accuracy and repeatability across the positive flow range of the SLF3S-1300F. Absolute error in ml/min for IPA.
0.001
0.01
0.1
1
10
0.1 1 10
Absolute accuracy (ml/min)
Flow rate (ml/min H2O, for positive flow direction)
SLF3S-1300F Absolute Accuracy with H2O
At 23°C
At 6°C/40°C
Repeatability
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2 Specifications
2.1 Electrical Specifications
Parameter
Symbol
Conditions
Min.
Typical
Max.
Units
Comments
Supply voltage DC
VDD
3.2
3.5
3.8
V
Power-up/down level
VPOR
2.3
2.5
2.7
V
Supply current
IDD
Measurement
4.5
6
mA
Idle mode
0.05
0.6
mA
Table 3: Electrical characteristics
2.2 Timing Specifications
Parameter
Symbol
Min.
Typical
Max.
Units
Comments
Power-up time
tPU
25
ms
Time to sensor ready
Soft reset time
tSR
25
ms
Time between soft reset command and sensor ready
Warm-up time
tw
50
ms
Time needed until sensor output is within specification
according to section 1.1 at 50% full scale flow rate.
I2C SCL frequency
fI2C
400
1000
kHz
Update rate liquid flow
value and High Flow flag
fflow
1800
2000
2200
Hz
Update rate temperature
value and Air-in-Line flag
ftemp
73
83
111
Hz
Recommended sensor
read out frequency
fro
10
50-200
2000
Hz
Recommendations are based on explanations in section 3.1
Table 4: Timing specifications
2.3 Absolute Minimum and Maximum Ratings
Stress levels beyond those listed in Table 5 may cause permanent damage to the sensor or affect its reliability. These
are stress ratings only and functional operation of the sensor at these conditions is not guaranteed. Ratings are only
tested each at a time.
Parameter
Rating
Unit
Operating temperature
+5 … +50
°C
Maximum relative humidity for long-term exposure
40°C dew point or 95 %RH, whichever is lower; non-
condensing
n/a
Short term storage temperature5
-20 … +60
°C
Short term storage humidity5
0…95 %RH; non-condensing
% RH
ESD HBM (human body model)
< 2 (class 1C)
kV
Supply voltage VDD
-0.3 to 5.5
V
Burst pressure
25
bar
Table 5: Absolute minimum and maximum ratings
ESD Warning: The sensor is susceptible to ESD damages, especially when touching the connector pins. During
handling and testing, suitable ESD precautions must be taken.
Please note, that the sensor chip is not electrically isolated from the flow channel and the medium passing through it.
Therefore, a voltage difference between sensor and medium should be avoided at all times through proper system
grounding and design.
5
Flow path empty. Short term storage refers to temporary conditions during e.g. transport.
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2.4 Pin Assignment
The liquid flow sensor is equipped with a 6-pin connector (Molex part number: 53261-0671; 1.25 mm pitch PicoBlade
header, 6 circuits) for electrical connection, see Table 6 below for the pin assignment.
Pad
Description
Comments
1
n.c.
Nonfunctional, connect to GND or leave floating
2
SDA (data)
Serial data, bidirectional
3
VDD
Supply voltage
4
GND
Ground
5
SCL (clock)
Serial clock, bidirectional
6
n.c.
Nonfunctional, connect to GND or leave floating
Table 6: Pin assignment
The sensor is compatible with the mating standard connector (Molex part number 51021-0600) and the PicoBlade
Standard Cable Assembly series 15134-06xx (PicoBlade-to-PicoBlade cable assembly, available in different lengths).
These parts can be ordered from the usual electronics on-line distributors.
3 Sensor Output Signal Description
3.1 Flow Rate Measurement
After the sensor receives the “start continuous measurement” command it enters the continuous measurement mode
and continuously performs measurements of ~0.5 ms duration. Therefore, the flow rate value is updated every
0.5 ms (see Table 4).
The output flow rate value corresponds to the average of all individual 0.5 ms measurements since the last read
out. This has the benefit that the user can read out the sensor at his own desired speed, without losing information and
thus prevents aliasing. During the first 100 ms of averaging, the averaged value is obtained as the arithmetic mean.
  
When the reading speed is slower than 100 ms, the sensor will continue to average, but with a different algorithm. In this
algorithm exponential smoothing is used, with a smoothing factor = 0.0125.
 󰇛󰇜  
Where is the arithmetic mean value after the first 100 ms and the output flow rate value corresponds to the last
available .
With an exponential smoothing factor of = 0.0125, the user receives approximately an average value of the last
100 ms. In order not to lose information, the sensor should be read out at least once every 100 ms. When the sensor
has entered exponential smoothing, this is indicated by bit 5 in the signaling flag output of the sensor being set to high
(=1) (see section 3.3).
Please refer to relevant literature for more information about exponential smoothing.
3.2 Temperature Measurement
The temperature is measured every ~12 ms (see Table 4) with the help of an additional onboard temperature sensor. It
provides the sensor’s temperature, which is influenced by the ambient and fluid temperatures as well as the operating
conditions of the sensor. The temperature values are not averaged as described above. The read out temperature value
corresponds always to the latest temperature measurement available.
1 … 6
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3.3 Extended Features for Failure Mode Detection
The SLF3S-1300F sensor uses Sensirion’s latest flow chip generation. This enables detecting failures like air-in-line or
flow rates exceeding the output limit of the sensor. Such conditions are indicated as signaling flags to the user.
In addition to the flow rate and temperature values, the user can therefore read out several signaling flags (see section
4.3.1), including two flags for failure mode detection as well as a flag indicating whether exponential smoothing is used
as averaging algorithm of the flow rate data (see section 3.1).
The two signaling flags for failure mode detection, the Air-in-Line and the High Flow flag, report if an air-in-line or high
flow event occurred at least once since the last readout took place. For example, if the sensor is read out after 50 ms
have passed since the last readout took place, the corresponding signaling flag will be output as “high”, if an air-in-line
or high flow condition was detected at least once at any time during these last 50 ms.
When using Sensirion’s Viewer Software, the user has to select Signaling Flags under the Type of Measurement
dropdown menu to display the signaling flags while taking measurements. While the sampling time is faster than
100 ms, an air-in-line condition is displayed as a “1” and a high flow condition is displayed as a “2”. If both conditions
occur simultaneously this is hence displayed as “3”. When the sensor has entered exponential smoothing and bit 5 of
the signal flag output is set to high, the signaling flag output as displayed in the Viewer Software hence changes to 33,
34, 35 respectively.
The following sections provide further details about the two available failure mode detection signaling flags.
3.3.1 Detection of High Flow Rates
During priming or flushing of fluidic systems, much higher flow rates than the sensor’s output limit might be needed. The
sensor is not damaged in these situations as long as the maximum recommended operating pressure is not exceeded.
However, high flow rates (that exceed the output limit of the sensor) cause the sensor to saturate or output incorrect flow
rate measurements. By checking the High Flow flag this potential error can be monitored and detected reliably.
In cases where the output limit is exceeded, bit 1 of the signaling flag output is set to high (= 1). The bit 1 in the signaling
flag output stays high until it is read out.
3.3.2 Detection of Air-in-Line
Owing to the thermal measurement principle of Sensirion’s liquid flow sensors, the sensors can differentiate between air
and liquid media filling the flow channel.
When air is passing through the sensor, the bit 0 of the signaling flag output is set to high (= 1). The bit 0 in the signaling
flag output stays high until it is read out. See below.
Since the air bubble has an impact on the flow velocity profile inside the sensor’s flow channel, the High Flow flag (see
below) might also be set at the beginning and at the end of the air bubble.
The output of the signaling flags as well as the typical flow rate signal are visualized in the following graphs 1 to 5, while
an air bubble travels through the sensor’s flow channel from left to right.
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Figure 3: Detection of air-in-line events with the SLF3S-1300F. The graphs illustrate the air-in-line and high-flow flags while a bubble is passing
though the sensor from left to right.
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3.4 Sensor Start-Up and Warm-Up Behavior
The maximum time for system power-up is 25 ms until the sensor responds to communication requests.
After reset or start-up of the sensor, the sensor’s internal heater is turned off and must be started by performing a Start
Continuous Measurement command (see section 4.3.1). The very first measurement is delayed by approximately
12 ms for the SLF3S-1300F liquid flow sensor.
Due to the thermal measurement principle, a total warm-up time of typically 50 ms is necessary for a reliable
measurement. This includes the 12 ms needed for measurement initialization.
Time
0 ms
25 ms
X: Start continuous
measurement
X + 12 ms
X + 50 ms
Max. power-
up time
Warm-up time (50 ms)
Reliable flow
measurement
Continuous measurements of
~0.5 ms length
Measurement
initialization
//
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4 Digital Interface Description
The sensor’s digital interface is compatible with the I2C protocol. This chapter describes the available command set. For
detailed information about the I2C protocol, please consult the document "NXP I2C-bus specification and user manual"
(http://www.nxp.com/documents/user_manual/UM10204.pdf).
The physical interface consists of two bus lines, a data line (SDA) and a clock line (SCL) which need to be connected
via pull-up resistors to the bus voltage of the system.
4.1 I2C Address
The sensor’s I2C address is 8. The I2C header is formed by the I2C address followed by a read or write bit.
4.2 I2C Sequences
The commands are 16-bit. Data is read from the sensor in multiples of 16-bit words, each followed by an 8-bit checksum
to ensure communication reliability.
I2C master sends the write header and writes a 16 bit command
I2C master sends the read header and receives multiple 16bit words with CRC byte.
Dark areas with white text indicate that the sensor controls the SDA (Data) line.
I2C sequences can be aborted with a NACK and STOP condition.
4.3 I2C Commands
The command set consists of the following commands:
Start continuous measurement command
Stop measurement command
Soft reset
Read product identifier and serial number
Start
W
ACK
I2CAdr[6:0]
Cmd[15:8]
ACK
Cmd[7:0]
ACK
Start
R
ACK
I2CAdr[6:0]
Data1[15:8]
ACK
Data1[7:0]
ACK
CRC1[7:0]
(N)ACK
Stop
Data2[15:8]
ACK
Data2[7:0]
ACK
CRC2[7:0]
(N)ACK
Stop
or
DataX[15:8]
ACK
DataX[7:0]
ACK
CRCX[7:0]
NACK
Stop
or
≈
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4.3.1 Start Continuous Measurement
The sensor measures both the flow rate and the temperature. Both measurement results can be read out through one
single I2C read header while a continuous measurement is running.
There are two calibrations for H2O and IPA stored on the sensor. The applicable calibration needs to be chosen by the
respective I2C command listed below.
Command
Medium
Command code (Hex)
Description
Start continuous
measurement
Water
0x3608
This command starts the continuous measurement
mode for H2O. Outputs are the liquid flow rate, the
sensor’s temperature and the signaling flags.
Isopropyl alcohol
0x3615
This command starts the continuous measurement
mode for IPA. Outputs are the liquid flow rate, the
sensor’s temperature and the signaling flags.
Table 7: I²C command to start continuous measurement
After the command has been sent, the chip continuously measures and updates the measurement results as described
in section 3. New results (flow, temperature, and signaling flags) can be read continuously with a single I2C read header
for each set of measurements.
After the start measurement command is sent:
- the first measurement result is available after 12 ms;
- small accuracy deviations (% m.v.) can occur while the sensor warms-up (see section 3.4).
While no measurement data is available yet, the sensor will respond with a NACK to the I2C read header (I2C address +
read bit).
Preceding command
Consecutive read
Description
Continuous
measurement
Byte1: Flow 8msb
Byte2: Flow 8lsb
Byte3: CRC
Byte4: Temp 8msb
Byte5: Temp 8lsb
Byte6: CRC
Byte7: Signaling flags 8msb
Byte8: Signaling flags 8lsb
Byte9: CRC
After a start continuous measurement command, the
measurement results can be read out.
The temperature and the consecutive bytes don’t need
to be read out (every time). The read sequence can be
aborted by a NACK and a STOP condition.
Bit 0 and bit 1 of the signaling flags are used to detect
air-in-line and high flow events. Bit 5 of the signaling
flags indicates whether the sensor uses exponential
smoothing for flow data averaging. Bit 2 … 4 and 6 …
15 are reserved for future use.
Table 8: Consecutive reads after I²C command to start continuous measurement
Bit
Signaling flag (set to high = 1, set to low = 0)
0
Air-in-Line flag
1
High Flow flag
2-4
Unused, reserved for future use.
5
Exponential smoothing active
6-15
Unused, reserved for future use.
Table 9: Bit assignment of 16 bit signaling flags
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4.3.2 Stop Continuous Measurement
Command
Command code (Hex)
Description
Stop continuous
measurement
0x3FF9
This command stops the continuous measurement and
puts the sensor in idle mode. After it receives the stop
command, the sensor needs up to 0.5 ms to power
down the heater, enter idle mode and be receptive for a
new command.
Table 10: I²C command to stop continuous measurement
When the sensor is in continuous measurement mode, the measurement must be stopped before it can accept another
command. The only exception is the soft reset command.
In idle mode the sensor will consume less power.
4.3.3 Soft Reset
Table 11: Reset command
After the reset command, the sensor will take maximum 25 ms to reset. During this time the sensor will not acknowledge
its address nor accept commands.
Command
I2C address + W bit +
command code (Hex)
Consecutive read
Description
General call reset
0x0006
NA
This sequence resets the sensor with a separate reset
block, which is as much as possible detached from the
rest of the system on chip.
Note that the I2C address is 0x00, which is the general call
address, and that the command is 8 bit, i.e., the soft reset
command must not be preceded by an I2C write header.
The reset is implemented according to the I2C
specification.
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4.3.4 Read Product Identifier and Serial Number
The product identifier and serial number can be read out after sending a sequence of two commands.
First the I2C master sends two consecutive write headers and writes 16 bits for each command. Then the I2C master
sends the read header and receives 6 words of 16 bit with a CRC byte after each word.
Dark areas with white text indicate that the sensor controls the SDA (Data) line.
Table 12: Read product identifier
Product
Product number
SLF3S-1300F
0x07030201
Table 13: Product number for SLF3S-1300F
Command
Command code (Hex)
Consecutive read
Description
Read
product
identifier
0x367C
0xE102
Byte1: Product number [31:24]
Byte2: Product number [23:16]
Byte3: CRC
Byte4: Product number [15:8]
Byte5: Product number [7:0]
Byte6: CRC
Byte7: Serial number [63:56]
Byte8: Serial number [55:48]
Byte9: CRC
Byte10: Serial number [47:40]
Byte11: Serial number [39:32]
Byte12: CRC
Byte13: Serial number [31:24]
Byte14: Serial number [23:16]
Byte15: CRC
Byte16: Serial number [15:8]
Byte17: Serial number [7:0]
Byte18: CRC
Note that both commands need to be preceded with an I2C
write header (I2C address + W).
The second command returns:
- 32 bit product and revision number. The number
is listed in the table below.
Note that the last 8 bits are the sensor’s revision
number and are subject to change in case of an
update of the specifications.
- 64 bit unique serial number
Start
W
ACK
I2CAdr[6:0]
Cmd1[15:8]
ACK
Cmd1[7:0]
ACK
Start
W
ACK
I2CAdr[6:0]
Cmd2[15:8]
ACK
Cmd2[7:0]
ACK
Byte4
ACK
Byte5
ACK
Start
R
ACK
I2CAdr[6:0]
Byte1
ACK
Byte2
ACK
CRC1[7:0]
ACK
CRC2[7:0]
ACK
Byte16
ACK
Byte17
ACK
CRC6[7:0]
ACK
Stop
≈
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4.4 Checksum Calculation
The 8-bit CRC checksum transmitted after each data word is generated by a CRC algorithm. Its properties are displayed
in Table 14. The CRC covers the contents of the two previously transmitted data bytes. To calculate the checksum only
these two previously transmitted data bytes are used.
Property
Value
Name
CRC-8
Protected data
read data
Width
8 bit
Polynomial
0x31 (x8 + x5 + x4 +1)
Initialization
0xFF
Reflect input
False
Reflect output
False
Final XOR
0x00
Example
CRC (0xBEEF) = 0x92
Table 14: Checksum definition
4.5 Conversion to Physical Values
Conversion of the liquid flow rate and temperature sensor signals to a physical value is done with the scale factor.
4.5.1 Scale Factors
Parameter
SLF3S-1300F
Liquid Flow Rate
500 (ml/min)-1
Temperature
200 °C-1
Table 15: Scale factors
4.5.2 Liquid Flow Rate
The digital calibrated liquid flow rate signal read from the sensor is a 16 bit signed integer number (two's complement
number ranging from -32768 … 32767. Note that with the sensor’s output limit being ±65 ml/min, it will only output values
in the range -32500 … 32500). The integer value can be converted to the physical value by dividing it by the scale factor
(liquid flow rate in ml/min = sensor output scale factor).
4.5.3 Temperature
The digital calibrated temperature signal read from the sensor is a 16 bit signed integer number (two's complement
number ranging from -32768 … 32767). The integer value can be converted to the physical value by dividing it by the
scale factor (temperature in °C = sensor output scale factor).
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5 Fluidic Specifications and Connections
Parameter
SLF3S-1300F
Wetted materials
Polyphenylene sulfide
(PPS),
stainless steel 316L,
epoxy-based adhesive
Fluidic connector ports (fittings)
UNF ¼″-28 flat bottom
Recommended torque for fitting connection
0.5 Nm ± 10 %
Recommended tubing ID
2 mm
Pressure drop (at 40 ml/min, H2O, 23 °C)
< 4 mbar
Table 16: Fluidic specifications and connections
6 Mechanical Specifications
Parameter
SLF3S-1300F
Largest dimensions
~ (48 x 15.5 x 8.9) mm3
Weight
~ 3.0 g
Inner diameter
~ 1.4 mm
Inner volume
~ 58 µl
Maximum recommended operating pressure6
12 bar
Rated burst pressure6
25 bar
Table 17: Mechanical specifications
Figure 4: Dimensions of SLF3S-1300F (all dimensions in mm)
6
Pressure ratings at 23°C, apply to sensor only; pressure rating of the fitting interface has to be assessed separately.
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7 Mechanical Mounting of the SLF3S-1300F Sensor
For mechanical mounting of the SLF3S-1300F sensors, Sensirion provides a mounting clamp. The SLF3x mounting
clamp is made from POM (Polyoxymethylene).
See Figure 5 below for the two possible mounting orientations of the clamp and how to correctly insert the
SLF3S-1300F sensor into the clamp.
Figure 5: Mounting guidelines for the SLF3S-1300F sensor into the SLF3x mounting clamp
The arrow visible on the clamp’s clip holding down the sensor indicates the positive flow direction of the
SLF3S-1300F sensor. The 6-pin connector is facing the front of the clamp to allow for an easily accessible cable
connection. Standard M2.5 sized screws can be used for the fixation of the clamp.
Figure 6: Pictures of the SLF3x mounting clamp with and without sensor installed
See Figure 7 for detailed dimensions of the SLF3x mounting clamp.
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Figure 7: Dimensions of the SLF3x mounting clamp (all dimensions in mm)
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8 Ordering Information
Use the product names and article numbers shown in the following table when ordering SLF3S-1300F liquid flow sensors,
the SLF3S-1300F evaluation kit, or the SLF3x mounting clamp. All products and accessories are available via Sensirion’s
worldwide distribution network. Please find an overview for your region under: www.sensirion.com/distributor-search.
Product
Description
Article Number
SLF3S-1300F liquid flow sensor
40 ml/min, with ¼″-28 flat bottom ports
3.000.091
Evaluation kit SLF3S-1300F,
ready to use
Sensor, USB interface, mounting support
(for detailed contents see below)
3.000.120
Accessories
Description
Article Number
SLF3x mounting clamp
POM, green
(mounting support for mechanical fixation)
1.000.062
For fast and easy technology evaluation, Sensirion offers a comprehensive SLF3S-1300F evaluation kit.
Each SLF3S-1300F evaluation kit contains:
1 pc SLF3S-1300F liquid flow sensor
1 pc SLF3x mounting clamp to enable mechanical fixation of the sensor
1 pc SCC1-USB Sensor Cable with USB connector for plug-and-play connection to a PC
1 pc adapter cable from 6-pin connector to 4-pin M8 which serves as link between sensor and SCC1-USB
Sensor Cable, 15 cm length
1 pc ribbon cable from 6-pin connector to pigtail, 30 cm length
A set of fluidic fittings
PC Software (Viewer & Data Export Tool)
9 Packaging Information
Standard shipment includes only the sensor, neither cables, SLF3x mounting clamp, nor fluidic connection material.
The SLF3x liquid flow sensors are shipped in trays of 50 pcs each.
The tray dimension is (350 x 260 x 19.5) mm3. By piling them up, the height per tray can be considered as 15 mm.
The SLF3x mounting clamp is packaged in bags of 250 pieces (+/- 2%). The weight of one bag is ~0.5 kg.
Note: The clamp is delivered separately from the SLF3S-1300F sensors as bulk good.
www.sensirion.com Version 1.0 – D1 – June 2019 19/20
10 Important Notices
10.1 Warning, Personal Injury
Do not use this product as safety or emergency stop devices or in any other application where failure of the product could result in
personal injury. Do not use this product for applications other than its intended and authorized use. Before installing, handling, using or
servicing this product, please consult the data sheet and application notes. Failure to comply with these instructions could result in
death or serious injury.
If the Buyer shall purchase or use SENSIRION products for any unintended or unauthorized application, Buyer shall defend, indemnify and hold
harmless SENSIRION and its officers, employees, subsidiaries, affiliates and distributors against all claims, costs, damages and expenses, and
reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized
use, even if SENSIRION shall be allegedly negligent with respect to the design or the manufacture of the product.
10.2 ESD Precautions
The inherent design of this component causes it to be sensitive to electrostatic discharge (ESD). To prevent ESD-induced damage and/or
degradation, take customary and statutory ESD precautions when handling this product.
See application note “ESD, Latchup and EMC” for more information.
10.3 Warranty
SENSIRION warrants solely to the original purchaser of this product for a period of 12 months (one year) from the date of delivery that this product
shall be of the quality, material and workmanship defined in SENSIRION’s published specifications of the product. Within such period, if proven to
be defective, SENSIRION shall repair and/or replace this product, in SENSIRION’s discretion, free of charge to the Buyer, provided that:
▪ notice in writing describing the defects shall be given to SENSIRION within fourteen (14) days after their appearance;
▪ such defects shall be found, to SENSIRION’s reasonable satisfaction, to have arisen from SENSIRION’s faulty design, material, or workmanship;
▪ the defective product shall be returned to SENSIRION’s factory at the Buyer’s expense; and
▪ the warranty period for any repaired or replaced product shall be limited to the unexpired portion of the original period.
This warranty does not apply to any equipment which has not been installed and used within the specifications recommended by SENSIRION for
the intended and proper use of the equipment. EXCEPT FOR THE WARRANTIES EXPRESSLY SET FORTH HEREIN, SENSIRION MAKES NO
WARRANTIES, EITHER EXPRESS OR IMPLIED, WITH RESPECT TO THE PRODUCT. ANY AND ALL WARRANTIES, INCLUDING WITHOUT
LIMITATION, WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE EXPRESSLY EXCLUDED AND
DECLINED.
SENSIRION is only liable for defects of this product arising under the conditions of operation provided for in the data sheet and proper use of the
goods. SENSIRION explicitly disclaims all warranties, express or implied, for any period during which the goods are operated or stored not in
accordance with the technical specifications.
SENSIRION does not assume any liability arising out of any application or use of any product or circuit and specifically disclaims any and all liability,
including without limitation consequential or incidental damages. All operating parameters, including without limitation recommended parameters,
must be validated for each customer’s applications by customer’s technical experts. Recommended parameters can and do vary in different
applications.
SENSIRION reserves the right, without further notice, (i) to change the product specifications and/or the information in this document and (ii) to
improve reliability, functions and design of this product.
Copyright© 2019, by SENSIRION.
CMOSens® is a trademark of Sensirion
All rights reserved
www.sensirion.com Version 1.0 – D1 – June 2019 20/20
11 Headquarters and Subsidiaries
Sensirion AG
Laubisruetistr. 50
CH-8712 Staefa ZH
Switzerland
phone: +41 44 306 40 00
fax: +41 44 306 40 30
info@sensirion.com
www.sensirion.com
Sensirion Inc., USA
phone: +1 312 690 5858
info-us@sensirion.com
www.sensirion.com
Sensirion Korea Co. Ltd.
phone: +82 31 337 7700~3
info-kr@sensirion.com
www.sensirion.co.kr
Sensirion Japan Co. Ltd.
phone: +81 3 3444 4940
info-jp@sensirion.com
www.sensirion.co.jp
Sensirion China Co. Ltd.
phone: +86 755 8252 1501
info-cn@sensirion.com
www.sensirion.com.cn
Sensirion Taiwan Co. Ltd
phone: +886 3 5506701
info@sensirion.com
www.sensirion.com
To find your local representative, please visit www.sensirion.com/distributors