Microstructure Pressure Sensors
Signal Conditioned
0 psi to 1 psi up to 0 psi to 150 psi ASCX Serie
s
FEATURES
• 5 Vdc Supply
• High Level Voltage Output
• Field Interchangeable
• Calibrated and
Temperature
Compensated
• Small Form Factor
• Low Power
• Offset Adjust
TYPICAL APPLICATIONS
• Medical Equipment
• Industrial Controls
• Pneumatic Controls
WARNING
PERSONAL INJURY
DO NOT USE these
products as safety or
emergency stop devices or
in any other application
where failure of the product
could result in personal
injury.
Failure to comply with
these instructions could
result in death or serious
injury.
This series is a signal-conditioned version of Honeywell’s proven performer
and industry leading SCX series sensor.
This amplified ASCX device is in a package the same as the SCX but it
offers a high level (4.5 V span) output on a very cost-effective basis. This
family is fully calibrated and temperature compensated over a range of 0 °C
to 70 °C [32 °F to 158 °F] but can be operated from -25 °C to 105 °C [-13 °F
to 221 °F]. These sensors are intended for use with non-corrosive, non-ionic
working fluids such as air and dry gases.
Devices are available to measure absolute, differential and gage pressures
from 1 psi (ASCX01) up to 150 psi (ASCX150). The absolute devices (A)
have an internal vacuum reference and an output voltage proportional to
absolute pressure. Differential devices (D) allow application of pressure to
either side of the sensing diaphragm and can be used for gage or differential
pressure measurements.
The ASCX series devices feature an integrated circuit (IC) sensor element
and laser trimmed thick film ceramic housed in a compact solvent resistant
case. It provides excellent corrosion resistance and isolation to external
packaging stresses. The package has convenient mounting holes and
pressure ports for ease of use with standard plastic tubing for pressure
connection.
All ASCX devices are calibrated for span to within ± 1 % (typically ± 0.2 %)
of FSO. The devices are characterized for operation from a single 5 volt
supply although sensitivity is ratiometric to the supply voltage and any
dc supply from 5 Vdc to 16 Vdc is acceptable.
The ACSX series requires very low quiescent current compared to other
signal conditioned pressure sensors, thus, this series is ideal for battery-
powered applications.
The 100 microseconds response time makes this series an excellent choice
for computer peripherals and pneumatic control applications.
Contact your local honeywell representative, or go to Honeywell’s website at
www.honeywell.com/sensing for additional details.
WARNING
MISUSE OF DOCUMENTATION
• The information presented in this product sheet is for reference only. Do not
use this document as a product installation guide.
• Complete installation, operation, and maintenance information is provided in
the instructions supplied with each product.
Failure to comply with these instructions could result in death or serious
injury.
Sensing and Control
Microstructure Pressure Sensors
Signal Conditioned
0 psi to 1 psi up to 0 psi to 150 psi ASCX Series
PRESSURE RANGE SPECIFICATIONS
Full-Scale Span (1)
Model * Operating
Pressure
Proof
Pressure (2) Sensitivity (3) Min. Typ. Max.
ASCX01DN 0 psid to 1 psid 20 psid 4.5V/psi
ASCX05DN 0 psid to 5 psid 20 psid 0.9V/psi 4.43 V 4.50 V 4.57 V
ASCX15AN 0 psia to 15 psia 30 psia 0.3V/psi
ASCX15DN 0 psid to 15 psid 30 psid 0.3V/psi
ASCX30AN 0 psia to 30 psia 60 psia 0.15V/psi
ASCX30DN 0 psid to 30 psid 60 psid 0.15V/psi
ASCX100AN 0 psia to 100 psia 150 psia 45mV/psi
ASCX100DN 0 psid to 100 psid 150 psid 45mV/psi
ASCX150AN 0 psia to 150 psia 150 psia 30mV/psi
ASCX150DN 0 psid to 150 psid 150 psid 30mV/psi
4.455 V
4.50 V
4.545 V
* Ordering information: Order model number.
MAXIMUM RATINGS
Characteristic Description
Supply Voltage (VS) 4.5 Vdc to 16 Vdc
Output Current
Source
Sink
5 mA
3 mA
Lead Soldering Temperature
(2 seconds to 4 seconds)
250 °C [482 °F]
Maximum Pressure On Any Port 150 psi
Quiescent Current 4 mA
PARAMETER REFERENCE CONDITIONS
Model Reference Conditions
Supply Voltage 5.01 ± 0.01 Vdc
Reference Temperature 25 °C [77 °F]
Load Condition 200 kOhm
Common Mode Pressure 0 psig
ENVIRONMENTAL SPECIFICATIONS
Characteristic Description (Maximum Ratings) All Devices
Compensated Operating Temperature 0 °C to 70 °C [32 °F to 158 °F]
Operating Temperature -25 °C to 105 °C [-13 °F to 221 °F]
Storage Temperature -55 °C to 125 °C [-67 °F to 257 °F]
2 Honeywell • Sensing and Control
Microstructure Pressure Sensors
Signal Conditioned
0 psi to 1 psi up to 0 psi to 150 psi ASCX Series
ASCX PERFORMANCE CHARACTERISTICS (4)
Characteristic Min. Typ. Max. Unit
Offset (5)
Models ASCX15/30/100/150xN
Models ASCX01/05DN
0.205
0.180
0.250
0.250
0.295
0.320
Volts
Volts
Output @ FS Pressure 4.750 Volts
Combined Pressure Linearity and Hysteresis (6) – ±0.1 ±0.5 % FSO
Temperature Effect on Span 0 °C to 70 °C [32 °F to 158 °F] (7)
Models ASCX15/30/100/150xN
Models ASCX01/05DN
–
–
±0.2
±0.2
±1.0
±1.5
% FSO
% FSO
Temperature Effect on Offset 0 °C to 70 °C [32 °F to 158 °F] (7)
Models ASCX15/30/100/150xN
Models ASCX01/05DN
–
±0.5
±0.5
±1.0
±1.5
% FSO
% FSO
Repeatability (8) – ±0.2 ±0.5 % FSO
Response Time (9) – 100 – Microsec.
SPECIFICATION NOTES
Note 1: Full-Scale Span is the algebraic difference between the output voltage at full-scale pressure and the output at zero pressure.
Note 2: Maximum pressure above which causes permanent sensor failure.
Note 3: Sensitivity is ratiometric to supply voltage.
Note 4: Performance specs are shown at reference conditions. Specifications apply for absolute pressure devices with pressure applied
to Port A. For gage devices, pressure is applied to Port B and Port A is left open for ambient. For differential pressures, Port B
is the high-pressure port. All differential devices feature dual pressure ports and can be used as gage or differential sensors.
For absolute devices, Port B is inactive.
Note 5: Offset calibration is at the lowest pressure for each given device.
Note 6: Linearity refers to the best straight line fit as measured for offset, full scale and ½ full-scale pressure.
Note 7: Temperature errors are the maximum shift over 0 °C to 70 °C [32 °F to 158 °F], relative to the 25 °C [77 °F] reading.
Note 8: Maximum difference in output at any pressure within the operating pressure range and the temperature within 0 °C to 70 °C
[32 °F to 158 °F] after:
a) 100 temperature cycles, 0 °C to 70 °C [32 °F to 158 °F]
b) 1.0 million pressure cycles, 0 psi to Full-Scale Span.
Note 9: Response time for a 0 psi to Full-Scale Span pressure step change, 10 % to 90 % rise time.
ELECTRICAL CONNECTION
Pinout ASCX Series
PIN 1) External Offset Adjustment
PIN 2) Vs
PIN 3) + Output
PIN 4) Ground
PIN 5) N/C
PIN 6) Do Not Use
Honeywell • Sensing and Control 3
Microstructure Pressure Sensors
Signal Conditioned
0 psi to 1 psi up to 0 psi to 150 psi
ASCX Series
PHYSICAL DIMENSIONS for Reference Only (mm/in)
WARRANTY/REMEDY
Honeywell warrants goods of its manufacture as being
free of defective materials and faulty workmanship.
Contact your local sales office for warranty information. If
warranted goods are returned to Honeywell during the
period of coverage, Honeywell will repair or replace
without charge those items it finds defective. The
foregoing is Buyer’s sole remedy and is in lieu of all
other warranties, expressed or implied, including
those of merchantability and fitness for a particular
purpose.
Specifications may change without notice. The
information we supply is believed to be accurate and
reliable as of this printing. However, we assume no
responsibility for its use.
While we provide application assistance personally,
through our literature and the Honeywell web site, it is up
to the customer to determine the suitability of the product
in the application.
For application assistance, current specifications, or
name of the nearest Authorized Distributor, contact a
nearby sales office. Or call:
1-800-537-6945 USA/Canada
1-815-235-6847 International
FAX
1-815-235-6545 USA
INTERNET
www.honeywell.com/sensing
info.sc@honeywell.com
Sensing and Control
www.honeywell.com/sensing
Honeywell
11 West Spring Street
Freeport, Illinois 61032
008104-1-EN IL50 GLO 1203 Printed in USA
Copyright 2003 Honeywell International Inc. All Rights Reserved
