Go with the ow of engineering leadership. All airflow sensors
operate on heat transfer — flow and differential pressure.
But Honeywell Sensing and Control (S&C) offers advanced
chip design, manufacturing techniques and microstructure
technology, allowing our microbridge to be notably faster, smaller
and more sensitive. Our silicon chip design is created from a thin-
film, thermally isolated bridge structure, containing both heater
FEATURES
HONEYWELL ZEPHYR™ AIRFLOW
SENSORS
HAF Series-High Accuracy.
±50 SCCM to ±750 SCCM
Features: Total Error Band (TEB) as low as
±0.25 %FSS • Fast response time
• Wide range of airows • Customizable
flow ranges and configurable package
styles • Full calibration and temperature
compensation • High sensitivity at very
low ows • Linear output • High stability
• Low pressure drop • High 12-bit
resolution (digital), 0.039 %FS resolution
(analog) • Low 3.3 Vdc operating voltage
• ASIC-based I2C output compatibility
(digital) • Insensitivity to mounting
orientation • Insensitivity to altitude
• Small size • RoHS-compliant materials
Benets: Total Error Band (TEB) as low
as ±0.25 %FSS allows for precise airflow
measurement, often ideal for demanding
applications with high accuracy
requirements. Fast response time allows
a customer’s application to respond
quickly to airflow change, important in
critical medical (e.g., anesthesia) and
industrial (e.g., fume hood) applications.
Measures mass flow at standard flow
ranges of ±50, ±100, ±200, ±400 or
±750 SCCM, or custom flow ranges,
Airow Sensors
Line Guide
continued on page 5
increasing the options for integrating the
sensor into the application. Customizable
flow ranges and configurable package
styles meet specific end-user needs. Full
calibration and temperature compensation
typically allow customer to remove
additional components associated
with signal conditioning from the PCB,
reducing PCB size as well as costs often
associated with those components (e.g.,
acquisition, inventory, assembly). High
sensitivity at very low flows provides
for faster response time at the onset or
cessation of ow. Linear output provides
a more intuitive sensor signal than the
raw output of basic airflow sensors,
which can help reduce production costs,
design, and implementation time. High
stability reduces errors due to thermal
effects and null shift to provide accurate
readings over time, often eliminating
need for system calibration after PCB
mount and periodically over time. Low
pressure drop typically improves patient
comfort in medical applications, and
reduces noise and system wear on
other components such as motors and
pumps. High 12-bit resolution (digital)
increases ability to sense small airflow
changes, allowing customers to more
precisely control their application; 0.039
%FS resolution (analog) increases
ability to sense small airflow changes,
allowing customers to more precisely
control their application. Low 3.3 Vdc
operating voltage option and low power
consumption allow for use in battery-
driven and other portable applications.
ASIC-based I2C digital output compatibility
eases integration to microprocessors or
microcontrollers, reducing PCB complexity
and component count. Insensitivity to
mounting orientation allows customer
to position the sensor in most optimal
point in the system, eliminating concern
for positional effects. Insensitivity to
altitude eliminates customer-implemented
altitude adjustments in the system,
easing integration and reducing
production costs by not having to
purchase additional sensors for altitude
adjustments. Small size occupies less
space on PCB, allowing easier fit and
potentially reducing production costs;
PCB size may also be reduced for easier
fit into space-constrained applications.
Designed for use in medical equipment
such as anesthesia delivery machines,
ventricular assist devices (heart pumps),
hospital diagnostics (spectrometry, gas
chromatography), nebulizers, oxygen
concentrators, sleep apnea machines,
and temperature sensing elements. This provides rapid response
to the air or gas flow and amount and direction, delivering
a proportional output voltage. Amplified versions provide
an enhanced output signal and less external circuitry, while
unamplified versions allow additional external circuit options.
What’s more, a variety of port styles provides greater application
flexibility.
HAF Series-High Accuracy
±50 SCCM to ±750 SCCM
HAF Series-High Accuracy
10 SLPM to 300 SLPM
Signal conditioning amplified, compensated amplified, compensated
Technology silicon die with thermally isolated heater silicon die with thermally isolated heater
Flow/pressure range
0 SCCM to ±50 SCCM
0 SCCM to ±100 SCCM
0 SCCM to ±200 SCCM
0 SCCM to ±400 SCCM
0 SCCM to ±750 SCCM
0 SLPM to 10 SLPM
0 to SLPM to 15 SLPM
0 to SLPM to 20 SLPM
0 to SLPM to 50 SLPM
0 to SLPM to 100 SLPM
0 to SLPM to 200 SLPM
0 to SLPM to 300 SLPM
Total error band as low as ±0.25 %FSS 10 SLPM to 200 SLPM: 4.0% reading
300 SLPM: 7.0% reading
Output analog (Vdc), digital (I2C) digital (I2C)
Power consumption
3.3 Vdc: 40 mW typ. (no load) (analog)
23 mW typ. (no load) (digital)
5.0 Vdc: 55 mW typ. (no load) (analog)
38 mW typ. (no load) (digital)
3 Vdc: 60 mW max.
10 Vdc: 200 mW max.
Port style long port fastener mount, short port
fastener mount, short port snap mount
manifold mount, 22 mm OD tapered male
fitting, G 3/8 female threaded fitting
Media capability non-corrosive dry gases non-corrosive dry gases
Compensated temperature
range
0 °C to 50 °C
[32 °F to 122 °F]
0 °C to 50 °C
[32 °F to 122 °F]
Operating temperature
range
-20 °C to 70 °C
[-4 °F to 158 °F]
-20 °C to 70 °C
[-4 °F to 158 °F]
Our technology is most
sensitive to your needs.
Honeywell S&C offers
specially crafted airflow sensor
housings to precisely direct
and control the airflow across
the element. The mechanical
package design allows easy
mounting to circuit boards,
plus other advantages:
amplified or un-amplified
microbridge airflow; state-of-
the-art silicon micromachining;
sensitivity to low flows (30
SCCM to 300 SLPM); accurate
low pressure sensing
0.003 mbar to 10 mbar
(0.0001 in H20 to 4.0 in H20);
analog or digital output.
Honeywell S&C airflow sensors
offer enhanced performance in
multiple potential applications,
including HVAC system
damper control, gas analysis,
leak detection equipment, gas
metering and chromatography,
process control, and vent
hoods. In the medical industry,
potential applications range
from respiratory equipment
such as respirators,
spirometers, anesthesia and
oxygen delivery to sleep
apnea equipment.
2 sensing.honeywell.com
Airow Sensors Line Guide
Honeywell Zephyr™
Airow Sensors
AWM1000 Series AWM2000 Series AWM3000 Series AWM5000 Series
Signal conditioning unamplified, compensated unamplified, compensated amplified amplified
Technology silicon die silicon die silicon die silicon die
Flow/pressure range
±200 SCCM
1000 SCCM to -600 SCCM
±5.0 mbar [2.0 in H20]
±10.0 mbar [4.0 in H20]
±30 SCCM
±1000 SCCM
±10.0 mbar [4.0 in H20]
30 SCCM, 200 SCCM, 1000 SCCM
0 mbar to 1.25 mbar [0 in H20 to
0.5 in H20]
0 mbar to 5.0 mbar [0 in H20 to
2 in H20]
5.0 mbar [2.0 in H20]
0 SLPM to 5,0 SLPM
0 SLPM to 10.0 SLPM
0 SLPM to 15.0 SLPM
0 SLPM to 20.0 SLPM
Output analog analog analog analog
Power consumption 30 mW typ. 30 mW typ. 50 mW or 100 mW typ. 100 mW max.
Port style straight straight straight 1/4 in-18 NPT
Media capability non-corrosive dry gases non-corrosive dry gases non-corrosive dry gases non-corrosive dry gases
Compensated temperature
range
-25 °C to 85 °C
[-13 °F to 185 °F]
-25 °C to 85 °C
[-13 °F to 185 °F]
-25 °C to 85 °C
[-13 °F to 185 °F]
0 °C to 50 °C
[32 °F to 122 °F]
Operating temperature
range
-25 °C to 85 °C
[-13 °F to 185 °F]
-25 °C to 85 °C
[-13 °F to 185 °F]
-25 °C to 85 °C
[-13 °F to 185 °F]
-20 °C to 70 °C
[-4 °F to 158 °F
sensing.honeywell.com 3
Airow Sensors
4 sensing.honeywell.com
Airow Sensors Line Guide
AWM700 Series AWM40000 Series AWM90000 Series
Signal conditioning amplified unamplified (compensated) or amplified uncompensated
Technology silicon die silicon die silicon die
Flow/pressure range 300 SLPM ±25.0 SCCM
1.0 SLPM, 6.0 SLPM
±200 SCCM
±5.0 mbar [2.0 in H20]
Output analog analog analog
Power consumption 60 mW max. 60 mW max., 75 mW max. 50 mW typ.
Port style 22 mm tapered manifold parallel
Media capability non-corrosive dry gases non-corrosive dry gases non-corrosive dry gases
Compensated temperature
range
10 °C to 40 °C
[50 °F to 104 °F]
-25 °C to 85 °C
[-13 °F to 185 °F] N/A
Operating temperature
range
-25 °C to 85 °C
[-13 °F to 185 °F]
-40 °C to 125 °C
[-40 °F to 251 °F]
(inclusive)
-25 °C to 85 °C
[-13 °F to 185 °F]
Airow Sensors
spirometers, ventilators, and laparoscopy,
as well as industrial air-to-fuel ratio,
analytical instrumentation (spectrometry,
chromatography), fuel cells, gas leak
detection, VAV system on HVAC systems,
gas meters, and HVAC lters.
HONEYWELL ZEPHYR™ AIRFLOW
SENSORS
HAF Series-High Accuracy.
10 SLPM to 300 SLPM
Features: Industry’s smallest Total Error
Band • High accuracy • Fast response
time • High stability • High sensitivity at
very low ows • High 12 bit resolution
• Industry’s widest airow range • Choice
or port styles • Linear output • Wide
supply voltage range • ASIC-based
I2C digital output • Factory or custom
calibration for mulitple gas types • RoHS-
compliant materials
Benets: Industry’s smallest Total Error
Band (TEB) allows for precise airflow
measurement. High accuracy ideal for
use in demanding applications. Fast
response time allows the customer’s
application to respond quickly to airflow
change, important in critical medical
and industrial applications. High stability
reduces errors due to thermal effects and
null shift to provide accurate readings over
time and often eliminating the need for
system calibration after PCB mount and
periodically over time. High sensitivity at
very low flows provides a fast response
time at the onet of cessation of flow. High
12-bit resolution increases the ability to
sense small airflow changes, allowing
customers to more precisely control their
application. Wide airow range measures
mass flow with standard flow ranges
of 10 SLPM to 300 SLPM, or custom
flow ranges, increasing the options for
integrating the sensor into the application
Choice of port styles provide flexibility to
choose the pneumatic connection that is
best for the customer’s application. Linear
output provides a more intuitive sensor
signal than the raw output of basic airflow
sensors, which can help reduce
production costs, design, and
implementation time. Wide supply voltage
range gives the designer the flexibility to
choose the supply voltage that works best
in the system. ASIC-based I2C digital
output simplifies integration to
microprocessors or microcontrollers,
reducing PCB complexity and
component count. Factory or custom
calibration for multiple gas types
eliminates need to implement gas
correction factors. RoHS-compliant
materials meet Directive 2002/95/
EC. Designed for use in medical
equipment such as anesthesia delivery
machines, ventilators, ventricular assist
devices (heart pumps), spirometers,
laparoscopy, as well as industrial
analytical instrumentation (spectrometry,
chromatography) air-to-fuel ratio, fuel
cells, fume hoods, gas leak detection,
process control gas monitoring, and
vacuum pump monitoring.
AWM1000 Series.
Features: Precision silicon
micromachining • Sensitivity to low ows
(200 SCCM to 1000 SCCM) • Enhanced
response time • Low power consumption
• Analog output • Cost-effective • Bi-
directional sensing capability • Sensor to
sensor interchangeability • Unamplied
• Laser trimmed • Mass ow and low
differential pressure sensing
Benets: Cost-effective microbridge
technology for potential applications
including HVAC damper control, process
control, respirators, oxygen concentrators,
gas metering, and chromatography.
Differential amplifier circuitry provides
output gain and/or introduces voltage
offsets to sensor output.
AWM2000 Series.
Features: Precision silicon
micromachining • Sensitivity to low ows
(30 SCCM to 1000 SCCM) • Enhanced
response time • Low power consumption
• Analog output • Cost-effective
• Bi-directional sensing capability
• Unamplied • Laser trimmed • Sensor to
sensor interchangeability • Mass ow and
low differential pressure sensing
Benets: Cost-effective microbridge
technology for potential applications
including process control, respirators,
ventilators, oxygen concentrators, and
leak detection equipment. Differential
amplifier circuitry provides output gain
and/or introduces voltage offsets to sensor
output.
AWM3000 Series.
Features: Precision silicon
micromachining • Sensitivity to low ows
(30 SCCM to 1000 SCCM) • Enhanced
response time • Low power consumption
• Analog output • Cost effective • Laser
trimmed • Amplied • Mass ow and low
differential pressure sensing • Sensor to
sensor interchangeability
Benets: Amplified signal conditioning
increases gain and introduces voltage
offsets to sensor output. On-board heater
control circuit. Laser trimmed for improved
sensor interchangeability. Potential
applications include HVAC damper
control, process control, respirators, leak
detection equipment, gas metering, and
chromatography.
AWM5000 Series.
Features: Precision silicon
micromachining • Sensitivity to low
ows (5 SLPM to 20 SLPM) • Enhanced
response time • Low power consumption
• Analog output • Cost-effective • On-
board signal conditioning • Venturi
type ow housing • Remote mounting
capability • Laser trimmed • AMP-
compatible connector • Rugged plastic
package • Amplied • Mass ow pressure
sensing • Sensor to sensor
interchangeability
Benets: Performs amplification,
linearization, temperature compensation,
and gas calibration. Separate gas
calibration types (nitrogen, carbon
dioxide, nitrous oxide or argon).
Microbridge chip in direct contact with
flow stream reduces error due to orifice
or bypass channel clogging. In-line ow
measurement potential applications
including HVAC damper control, oxygen
concentrators, leak detection equipment,
gas metering, and chromatography. 1 Vdc
to 5 Vdc linear output possible regardless
of flow range or calibration gas. Active
laser trimming improves interchangeability.
AMP-compatible connector often provides
reliable connection in demanding
applications.
sensing.honeywell.com 5
Sensing and Control
Automation and Control Solutions
Honeywell
1985 Douglas Drive North
Golden Valley, MN 55422 USA
+1-815-235-6847
honeywell.com
008150-7-EN
January 2014
Copyright © 2014 Honeywell International Inc. All rights reserved.
Warranty. Honeywell warrants goods of
its manufacture as being free of defective
materials and faulty workmanship.
Honeywell’s standard product warranty
applies unless agreed to otherwise by
Honeywell in writing; please refer to your
order acknowledgement or consult your
local sales office for specific warranty
details. If warranted goods are returned to
Honeywell during the period of coverage,
Honeywell will repair or replace, at its
option, without charge those items it finds
defective. The foregoing is buyer’s sole
remedy and is in lieu of all warranties,
expressed or implied, including those
of merchantability and tness for a
particular purpose. In no event shall
Honeywell be liable for consequential,
special, or indirect damages.
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.
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.
For more information about Sensing and
Control products, visit sensing.honeywell.
com or call +1-815-235-6847.
Email inquiries to info.sc@honeywell.com
AWM700 Series.
Features: Precision silicon
micromachining • Sensitivity to low ows
(200 SLPM to 300 SLPM) • Enhanced
response time • Low power consumption
• Analog output • Cost-effective • High
flow range capability in a small package
• Highly stable null and full-scale
• Compact package design • Extremely
low hysteresis and repeatability errors
• AMP-compatible connector
• Amplied • Mass ow and differential
pressure sensing • Sensor to sensor
interchangeability
Benets: Performs amplification and
temperature compensation. Specially
designed bypass flow housing provides
in-line flow measurement. Provides
enhanced reliability, accuracy, and
precision operating characteristics
for use in potential medical ventilation
equipment and medical and analytical
instrumentation applications. Low power
consumption for portable devices and
battery-powered applications. Enhanced
accuracy over life reduces need for
recalibration. Snap-in AMP-compatible
connector provides reliable connection.
AWM40000 Series.
Features: Precision silicon
micromachining • Sensitivity to low
ows (25 SCCM to 6 SLPM) • Enhanced
response time • Low power consumption
• Analog output • Cost-effective
• Repeatable response • Laser trimmed
• Standard mounting centers
• Amplied and unamplied • Mass ow
pressure sensing • Sensor to sensor
interchangeability
Benets: Sensitive to low flows,
adaptable for use with higher flows for
potential applications including process
control, respirators, ventilators, oxygen
concentrators, gas metering, and
chromatography. Low power consumption
for portable devices and battery-powered
applications. Laser-trimmed thick-lm and
thin-film resistors designed to provide
consistent interchangeability from one
device to the next.
AWM90000 Series.
Features: Precision silicon
micromachining • Sensitivity to low ows
(200 SCCM) • Low power consumption
• Analog output • Cost-effective • Bi-
directional sensing capability • Enhanced
response time • Uncompensated • Mass
flow and differential pressure sensing
Benets: Proven thermal bridge
technology. Two versions available, mass
flow and differential pressure. Potential
applications includie HVAC damper
control, process control, respirators,
ventilators, oxygen concentrators, leak
detection equipment, gas metering, and
chromatography. Low power consumption
for portable devices and battery-powered
applications.