Preliminary Product Specifications
LPG10 Liquid Flow Sensor (Preliminary Datasheet)
Digital Planar Package Sensor
Ultra small size
Excellent repeatability
Bio-compatible & inert materials
Calibrated and temperature compensated digital output (I
2
C)
Product Summary
Unique CMOSens
®
planar packaging technology
allows low fabrication costs by enabling non-invasive
measurement of liquid flow inside a cost-effective
planar substrate (US Patent 7905140). The flow
channel passes through this planar substrate and will
be connected to fluidic channels in a manifold. The
fluid will only be in contact with the glass channel.
The digital microsensor chip provides the full signal
processing functionality for a fully calibrated,
temperature compensated digital output
Integrating the LPG10 sensor models
Due to the dramatically reduced size and downmount fluidic connections, the LPG10 sensor family allows an
outstanding mechanical, fluidic and electronic integration. An evaluation kit with sample-manifold is available for
initial testing.
1
Sensor Performance (subject to change)
Table 1: Performance of LPG10 models (all data for medium H
2
O, 20°C, 1 bar
abs
unless otherwise noted)
Parameter
LPG10-0150
LPG10-0500
LPG10-1000
Unit
Full Scale Flow Rate
Sensor Output Limit
a
Accuracy below full scale
(whichever error is larger)
Repeatability error from zero to full scale
(whichever error is larger)
Flow Detection Response Time
63
Response Time On Power-Up
Operating Temperature
Ambient Storage Temperature
b
Operating Pressure
Proof Pressure
c
a
Flow rate at which the sensor output
b
Non-condensing,
10
15
5
tbd
1
tbd
100
150
5
0.2
1
0.04
40
120
+10 … +50
-40 … +80
10
20
1000
1500
5
0.25
1
0.05
tbd
tbd
3
7
l/min
l/min
% of measured value
% of full scale
% of measured value
% of full scale
ms
ms
°C
°C
bar (psi)
bar (psi)
saturates, see Section 2 for performance specifications between full scale and saturation point
flow path empty
c
Pressures listed are mechanical limits of glass substrate; Proof pressure of manifold assembly depends on customer manifold seal design
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LPG10 Series Liquid Flow Sensor
2
Specifications Charts
Figure 1: Sensor accuracy and repeatability (% of
measured value) across the sensor’s flow range
Figure 2: Sensor accuracy and repeatability (µl/min)
across the sensor’s flow range
Figure 3: Sensor accuracy and repeatability (% of
measured value) across the sensor’s flow range
Figure 4: Sensor accuracy and repeatability (µl/min)
across the sensor’s flow range
3
Communication with the Sensor
3.2 Sample Circuitry
The OEM
flow sensor models LPG10
show bi-
directional, linear transfer characteristics. The
product comes fully calibrated for water.
Digital Sampling Time, 16 bit
Digital Sampling Time, 9 bit
74 ms
1 ms
3.1 Electrical Specifications
Table 2: DC Characteristics
Parameter
LPG10 Series
Operating
voltage
Current drain
3.3– 3.6 V
DC
(Recommended: 3.4-3.5 V)
< 6 mA typical in operation
For electrical connection to the LPG10 flow sensor
family please follow the schematic shown in 3.2.
The required electrical connection can be realized in
different ways, e.g. using spring contacts.
Pad assignment from left to right:
1
SDA, Data
2
SCL, Clock
3
VDDA, Analog Supply
Voltage
4
VDDD, Digital Supply
Voltage
5
GND, Ground
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LPG10 Series Liquid Flow Sensor
3.3 Digital Communication via I²C-Bus
Digital
communication between a master and the
LPG10
sensor runs via the standard I²C-interface.
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.
These lines can be used on a 3.3V level with a clock
frequency of 100 kHz. For the detailed specifications of
this I²C communication, please refer to specific I²C
Application Notes
from Sensirion.
4
Fluidic Connection
LPG10-0150
LPG10-0500
Borosilicate glass
Down mount
tbd
tbd
0.2 mbar
~3.2
l
0.1 mbar
~11.7
l
LPG10-1000
Table 3: Fluidic Specifications and Pressure Rating
Parameter
Wetted Materials:
Internal Substrate Flow Channel Material
Fluid Connector Ports (Fittings)
Pressure Drop (at full scale flow rate, H
2
O, 23°C)
Total Internal Volume
REACH, RoHS and WEEE compliant
5
Mechanical Specifications
LPG10-0150
tbd
tbd
tbd
LPG10-0500
10 x 10 x 1.65 mm
0.23 g
0.5 mm x 0.4 mm
LPG10-1000
10 x 10 x 2.2 mm
0.32 g
0.9 mm x 0.9 mm
Table 4: Mechanical Specifications
Parameter
Largest dimensions (approximately)
Total Mass
Cross Section Sensor Tube (approximately)
channel cross section
approx. 0.5mm by 0.4mm
Flow Chip
Inlet
Outlet
VDDD
VDDA
GND
SDA
SCL
Contact pads
All dimensions in mm
Note: Example of LPG10-0500. For other versions, layout will be exactly identical, but size of channel and fluidic
ports will be slightly different.
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LPG10 Series Liquid Flow Sensor
6
Ordering Information
Manifold body for selected type of sensor
Connector cap with 4-pin molex connector
Screws and O-rings required for assembly
SCC1-USB Sensor Cable with USB connector
for plug-and-play connection to a PC
Adapter cable for 4-pin molex to SCC1 Sensor
Cables
4-pin molex ribbon cable
For OEM applications, the LPG10 flow meters can be
purchased in larger quantities without any additional
parts (100 pcs. minimum order quantity).
For initial testing and technology evaluation, the
LPG10 evaluation kit can be ordered.
This evaluation package contains:
Liquid Flow Meter LPG10-xxxx
Product
LPG10-0500
LPG10-1000
Evaluation Kit LPG10-0500
Evaluation Kit LPG10-1000
Article No
1-101119-01
1-101126-01
1-101318-01
1-101319-01
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LPG10 Series Liquid Flow Sensor
Important Notices
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 (including death). 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 datasheet 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.
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.
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:
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 datasheet 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 © 2001-2015, SENSIRION.
CMOSens
®
is a trademark of Sensirion
All rights reserved
REACH, RoHS and WEEE Statement
The sensors of the LPG10 series comply with requirements of the
following directives:
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.
EU Directive 1907/2006/EC concerning Registration, Evaluation,
Authorization and Restriction of Chemicals (REACH)
EU Directive 2002/96/EC on waste electrical and electronic
equipment (WEEE), OJ13.02.2003; esp. its Article 6 (1) with Annex II.
EU Directive 2002/65/EC on the restriction of certain hazardous
substances in electric and electronic equipment (RoHS),
OJ01.01.2011
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 AG (Germany)
phone: +41 44 927 11 66
info@sensirion.com
www.sensirion.com
Sensirion Inc., USA
phone: +1 805 409 4900
info_us@sensirion.com
www.sensirion.com
Sensirion Japan Co. Ltd.
phone: +81 3 3444 4940
info@sensirion.co.jp
www.sensirion.co.jp
Sensirion Korea Co. Ltd.
phone: +82 31 345 0031 3
info@sensirion.co.kr
www.sensirion.co.kr
Sensirion China Co. Ltd.
phone: +86 755 8252 1501
info@sensirion.com.cn
www.sensirion.com.cn
To find your local representative, please visit
www.sensirion.com/contact
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