www.sensirion.com v5 February 2013 7/10
3.3 Connecting Hose
Sensirion recommends a hose with an inner diameter
of 1/8 to 3/20 inch (3.18 to 3.8mm). Due to the
dynamic measurement principle, a small air flow is
required (Figure 6) which
leads to a dependence on the length of the hose
(Figure 7). Tubes up to 1 m show less than 1 % error
of the measured value (Figure 7).
Figure 6: Typical air flow through the SDP1000 / SDP2000.
Please note: 1 sccm = 1 cm
3
/min at 0°C and
1013 mbar pressure (1 sccm = 0.001 norm liter).
Figure 7: Influence of the length of the connecting hose on
the accuracy (using 3/16 inch inner diameter).
Example: a 50 Pa difference pressure is shown as
49.8 Pa when using 0.5 m tube with 3/16 inch
diameter.
4 Application Example: A High End Differential Pressure Sensor
Example:
Output V
out
: 0…10 Vdc
Range: 0…500 Pa, linear characteristics
Power supply V
supply
: 14.5… 27 Vdc
Component Value
IC
1
LM78L12
IC
2
LP2980
SDP SDP1000
OP
1
, OP
2
, OP
3
LMC6044
C
1
200 nF
C
2
2.2 uF
R
1
10 k (5%, 10 ppm)
R
2
18 k (5%, 10 ppm)
R
3
1 k (5%, 10 ppm)
R
4
100
R
5
6 k
(3x18 k
5%, 10 ppm in
parallel)
R
6
10 k (5%, 10 ppm)
Figure 8: Schematic of a high-end differential pressure transmitter using the SDP1000 / SDP2000. With only a few external
components and no additional calibration the transmitter features an accurate and temperature compensated 0…10 Vdc
output signal. (Component values not valid for SDP1000-L025.)
0
20
40
60
80
100
120
0 20 40 60 80 100
gas flow [sccm]
differential pressure [% full scale]
IC
1
IC
2
V
supply
5V
+
-
+
-
+
-
5V
12V
V
out
SDP1000 / SDP2000
C
1
C
2
C
1
R
1
R
1
R
2
R
3
R
1
R
1
R
4
R
6
R
5
OP
1
OP
2
OP
3
V
out
= (V
SDP
– 5V
*
(R
3
/(R
2
+R
3
)))
*
(R
5
+R
6
)/R
5
1
2
3
Length of the
connecting hose
Deviation of
Measured Value
0.5 m (20 inch) - 0.4 %
1.0 m (40 inch) - 0.8 %
2.0 m (80 inch) - 1.6 %
4.0 m (160 inch) - 3.2 %
1
2
3
12V
12V
12V
www.sensirion.com v5 February 2013 8/10
5 Ordering Information
When ordering SDP1000 / SDP2000 differential pressure sensors please refer to the following part names and article
numbers. For the latest product information and local distributor check out Sensirion’s website on
http://www.sensirion.com
Table 6: Overview ordering information
Part Name Output Range (Full Scale) Article Number
SDP1000-L025 Voltage 0.2 – 4.0 V, linear ± 62 Pa
± 0.62 mbar
± 0.25 "H
2
0
± 0.009 PSI 1-100313-03
SDP1000-L05 Voltage 0.25 - 4.0 V, linear 125 Pa 1.25 mbar 0.5 "H
2
0 0.018 PSI 1-100235-03
SDP1000-L Voltage 0.25 - 4.0 V, linear 500 Pa 5 mbar 2 "H
2
0 0.07 PSI 1-100110-03
SDP2000-L Voltage 0.25 - 4.0 V, linear 3500 Pa 35 mbar 14 "H
2
0 0.50 PSI 1-100113-03
SDP1000-R Voltage 0.25 - 4.0 V, square root 500 Pa 5 mbar 2 "H
2
0 0.07 PSI 1-100111-03
SDPx000-OEM For high quantity OEM versions (e.g. with digital output), please contact Sensirion.
-
6 Revision history
Table 7: Revision history
Date Version Page(s) Changes
November 2002
Preliminary v0.9
all
First preliminary release
January 2003
First release
all
Specifications, typos, various small modifications
December 2004
V2.6
all
Introduction type L05
Juni 2005
V2.7
all
Change of address, adjusted
specifications for type L05
March 2006
V2.8
all
Introduction of Sensirion USA address, updated disclaimer
March 2006
V2.9
2,6
New Calibration temperature: 23°C. Change of barbs/ports diameter
specification
October 2006
V3.0
1,8,9
RoHS
statement, Introduction of revision history in this document
May
2008
V3.1
All
RoHS statement on page 3
,
New disclaimer on page 10
, Contact
addresses updated, Various small modifications, Inconsistency in Zero
Pressure / Full Scale Output corrected
September 2008
V4.0
2
-
5,8
SDP2000
-
R discontinued, new SDP1000
-
L025 implemented, power
consumption, power supply dependence and temperature dependence
changed due to new SF04 sensor chip version, article number index
counted up due to new sensor chip version. Small linguistic adaptations.
October 2011
V4.1
1
Block diagram changed
February 2013
V5
all
Updated product number. Minor updates.
Notes:
www.sensirion.com v5 February 2013 9/10
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 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.
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.
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
©
2001-2008, SENSIRION.
CMOSens
®
is a trademark of Sensirion
All rights reserved
RoHS and WEEE Statement
The SDP1000 family complies with requirements of the
following directives:
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 2002/95/EC on the restriction of
the use of certain hazardous substances in
electricaland electronic equipment (RoHS), OJ
13.02.2003; esp. its Article 4.

SDP1000-R

Mfr. #:
Manufacturer:
Sensirion
Description:
Board Mount Pressure Sensors Differ Pressure Sensor
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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