FEATURES
• Fast response time (1 ms) allows the customer’s application
to respond quickly to a change in airflow, important in
critical medical (e.g., anesthesia) and industrial (e.g., fume
hood) applications.
• High stability reduces errors due to thermal effects and
null shift, providing 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 onset or cessation of flow.
• High 12-bit resolution increases the ability to sense small
airflow changes, allowing customers to more precisely
control their application.
• Wide airflow range: The industry’s broadest airflow range
measures mass flow with standard flow ranges of 0 to10,
0 to 15, 0 to 20, 0 to 50, 0 to 100, 0 to 200 and 0 SLPM to
300 SLPM, or custom flow ranges, increasing the options to
integrate the sensor into the application.
• Choice of port styles: Manifold mount, 22 mm OD tapered
male fitting, and G 3/8 female threaded fitting 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 (3 Vdc to 10 Vdc) provides a
flexible regulated power circuit which allows 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.
• RoHS-compliant materials Meet Directive 2002/95/EC.
POTENTIAL APPLICATIONS
• Medical: Anesthesia delivery machines, ventilators,
ventricular assist devices (heart pumps), spirometers,
laparoscopy
• Industrial: Analytic instrumentation (spectrometry,
chromatrography), air-to-fuel ratio, fuel cells, fume hoods,
gas leak detection, process control gas monitoring, vacuum
pump monitoring
PORTFOLIO
The Honeywell Zephyr Digital Airflow Sensors join an
extensive line of airflow sensors for potential use in medical,
industrial, and consumer applications.
Sensing and Internet of Things
DESCRIPTION
Honeywell Zephyr™ HAF Series sensors provide a digital
interface for reading airflow over specified full-scale flow and
compensated temperature ranges. The thermally isolated
heater and temperature sensing elements help these sensors
provide a fast response to air or gas flow. Zephyr sensors are
designed to measure mass flow of air and other non-corrosive
gases. Standard flow ranges are 10 SLPM, 15 SLPM, 20
SLPM, 50 SLPM, 100 SLPM, 200 SLPM and 300 SLPM,
with custom flow ranges available. The sensors are fully
calibrated and temperature compensated with an onboard
Application Specific Integrated Circuit (ASIC). The HAF Series
>10 SLPM is compensated over the calibrated temperature
range of 0°C to 50°C [32°F to 122°F]. The state-of-the-art
ASIC-based compensation provides digital (I2C) outputs with
a response time of 1 ms. These sensors operate on the heat
transfer principle to measure mass airflow. They consist of
a microbridge Microelectronic and Microelectromechanical
System (MEMS) with temperature-sensitive resistors
deposited with thin films of platinum and silicon nitride.
The MEMS sensing die is located in a precise and carefully
designed airflow channel to provide repeatable response to
flow. Zephyr sensors provide the customer with enhanced
reliability, high accuracy, repeatable measurements and the
ability to customize sensor options to meet many specific
application needs. The combination of rugged housings with
a stable substrate makes these products extremely robust.
They are designed and manufactured according to ISO 9001
standards.
VALUE TO CUSTOMERS
• Precise measurement: The industry’s smallest Total Error
Band, fast response time, and high accuracy provide precise
measurement and high performance in the customer’s
application.
• Saves time: Configurable and customizable with a choice of
port styles simplifies design and reduces production time.
• Cost-effective: Reduces printed circuit board (PCB) size and
overall design and production costs.
Datasheet
Honeywell ZephyrTM Digital Airflow Sensors
HAF Series—High Accuracy: 10 SLPM, 15 SLPM, 20 SLPM,
50 SLPM, 100 SLPM, 200 SLPM, 300 SLPM
008268
Issue 5
2Sensing and Internet of Things
Honeywell ZephyrTM Digital Airflow Sensors
HAF Series—High Accuracy: 10, 15, 20, 50, 100, 200, 300 SLPM
TOTAL ERROR BAND (TEB)*
Honeywell specifies TEB, the most comprehensive, clear,
and meaningful measurement that provides the sensor’s
true accuracy (see Figure 1). TEB allows for precise airflow
measurement, often ideal for demanding applications with high
accuracy requirements for precise airflow measurement.
• 10, 15, 20, 50, 100, 200 SLPM:
– 0%FS to 12.5%FS = 0.5%FS
– 12.5%FS to 100%FS = 4.0%reading
• 300 SLPM only:
– 0%FS to 12.5%FS = 0.5%FS
– 12.5%FS to 66.7%FS = 4.0%reading
– 66.7%FS to 100%FS = 7.0%reading
Figure 1. Total Error Band vs. Accuracy
Other airflow sensor manufacturers only report on accuracy, while Honeywell reports Total Error Band.
Table 1. Absolute Maximum Ratings1
Characteristic Parameter
Supply voltage -0.3 Vdc to 11.0 Vdc
Voltage on digital I/O output pins -0.3 Vdc to 3.0 Vdc2
Storage temperature range -40°C to 100°C [-40°F to 212°F]
Maximum flow change 10,000 SLPM/s
Maximum common mode pressure 4 bar | 60 psi at 25°C [77°F]
Maximum flow 350 SLPM
1Absolute maximum ratings are the extreme limits that the device will withstand without damage to the device. However, the electrical and
mechanical characteristics are not guaranteed as the maximum limits (above recommended operating conditions) are approached, nor will
the device necessarily operate at absolute maximum ratings.
2Digital I/O pins are diode protected at this voltage up to 2 mA. Digital bus voltage may exceed this value if the maximum digital bus current is
limited to 2 mA or less. The maximum bus current is generally determined by the bus pull-up resistors
HIGH ACCURACY
Ideal for use in demanding applications that require high
accuracy.
– 0%FS to 14.3%FS = 0.5%FS
– 14.3%FS to 100%FS = 3.5%reading
Total
Error
Band
Accuracy
BFSL
Sources of Error
Thermal Hysteresis
Thermal Effect on Offset
Thermal Effect on Span
Pressure Non-Linearity
Pressure Hysteresis
Full Scale Span
Offset
Pressure Non-Repeatability
CAUTION
IMPROPER USE
Do not use these products to sense liquid flow.
Failure to comply with these instructions may result in
product damage.
CAUTION
PRODUCT DAMAGE
Do not dissamble these products.
Failure to comply with these instructions may result in
product damage.
3
Sensing and Internet of Things
Honeywell ZephyrTM Digital Airflow Sensors
HAF Series—High Accuracy: 10, 15, 20, 50, 100, 200, 300 SLPM
Table 2. Operating Specifications
Characteristic Parameter
Supply voltage 3 Vdc to 10 Vdc
Supply current 20 mA max.
Power:
3 Vdc
10 Vdc
60 mW max.
200 mW max.
Calibrated temperature range10°C to 50°C [32°F to 122°F]
Operating temperature range -20°C to 70°C [-4°F to 158°F]
Full scale (FS) flow210, 15, 20, 50, 100, 200, 300 SLPM
Calilbrated flow range 0 to 10, 0 to 15, 0 to 20, 0 to 50, 0 to 100, 0 to 200, 0 SLPM to 300 SLPM
Calibration gas clean, dry air
Accuracy3
0%FS to 14.3%FS
14.3%FS to 100%FS
0.5%FS
3.5%reading
Total Error Band:4
10, 15, 20, 50, 100, 200 SLPM:
0%FS to 12.5%FS
12.5%FS to 100%FS
300 SLPM only:
0%FS to 12.5%FS
12.5%FS to 66.7%FS
66.7%FS to 100%FS
0.5%FS
4.0%reading
0.5%FS
4.0%reading
7.0%reading
Null accuracy5±0.5%FS
Flow response time61 ms
Warm up time735 ms
Resolution:
10 SLPM
15 SLPM
20 SLPM
50 SLPM
100 SLPM
200 SLPM
300 SLPM
0.002 SLPM
0.003 SLPM
0.003 SLPM
0.008 SLPM
0.015 SLPM
0.029 SLPM
0.043 SLPM
Proof pressure 10.3 bar | 150 psig
Burst pressure 13.7 bar | 200 psig
Bus standards8I2C fast mode (up to 400 kHz)
Reverse polarity protection no
1 Custom and extended temperature compensated ranges are possible. Contact Honeywell for details.
2 Honeywell standard for mass flow rate units is SLPM, which has reference conditions of 0°C and 1 atm. Custom units are given as LPM with listed
reference conditions at the first mention.
3 Accuracy is the maximum deviation in output from nominal over the entire calibrated flow range at 25ºC. Errors include Offset, Full Scale Span,
Linearity, Flow Hysteresis, and Repeatability.
4 Total Error Band (TEB) is the maximum deviation in output from nominal over the entire calibrated flow range and temperature range. Total Error
Band includes all Accuracy errors, as well as all temperature effects over the compensated temperature range, including Temperature Offset,
Temperature Span and Thermal Hysteresis.
5 Null Accuracy is the maximum deviation in output from nominal at null flow over the entire calibrated temperature range.
6 Response time: time to electrically respond to any mass flow change at the microbridge airflow transducer (response time of the transducer may be
affected by the pneumatic interface).
7 Warm-up time: time to the first valid flow measurement after power is applied.
8 Refer to the Technical Note “I2C Communications with Honeywell Digital Airflow Sensors” for I2C protocol information.
4Sensing and Internet of Things
Honeywell ZephyrTM Digital Airflow Sensors
HAF Series—High Accuracy: 10, 15, 20, 50, 100, 200, 300 SLPM
Table 3. Environmental Specifications
Characteristic Parameter
Humidity 0% to 95% RH, non-condensing
Shock 30 g, 6 ms
Vibration 1,33 g at 10 Hz to 500 Hz
ESD ESD IEC6100-4-2 air discharge up to 8 kV, or direct contact discharge up to 4 kV
Radiated immunity:
20 , 50, 100 , 200, 300 SLPM
10, 15 SLPM
Level 3 from 80 MHz to 1000 MHz per IEC61000-4-3
1 m shielded cable with 3 cm exposed leads at connector
1 m shielded cable with 3 cm exposed leads at connector and 280 Ohm at MHz ferrite bead
Table 4. Materials Specifications
Characteristic Parameter
Wetted materials glass reinforced (GR) thermoplastic polymer, gold, silicon, silicon dioxide, silicon nitride, epoxy,
PCB epoxy composite
Housing GR thermoplastic polymer
Substrate PCB
Adhesives epoxy
Electronic components silicon, gold
Compliance RoHS, WEEE
Table 5. Recommended Mounting and Implementation
Characteristic Parameter
Mounting screw size 10-32
Mounting screw torque 1,13 N m [20 in-lb]
Electrical connection 6 pin SIP connector
Pneumatic connection manifold mount, 22 mm OD tapered male fitting, G 3/8 female threaded fitting
5
Sensing and Internet of Things
Honeywell ZephyrTM Digital Airflow Sensors
HAF Series—High Accuracy: 10, 15, 20, 50, 100, 200, 300 SLPM
Figure 2. Nomenclature and Order Guide1
Figure 3. All Available Standard Configurations
Manifold mount 22 mm OD tapered male fitting G 3/8 female threaded fitting
HAF
Product Series
0020
Flow Range
U
Unidirectional
Flow Direction
U
For example, HAFUHM0020L4AXT defines a Honeywell Zephyr
TM
Airflow Sensor, unidirectional flow, long port, manifold mount, 20 SLPM, I
2
C output with
custom 0x49 address, 10% to 90% transfer function, 3 Vdc to 10 Vdc supply voltage.
HAF Series—
High Accuracy
Airflow Sensor
HH
HM
Manifold
mount
22 mm OD
tapered male
fitting per
ISO 5356
HM
Port Style
L
L
Unit
SLPM
X
X
Reserved for
Future Use
XXXXX
A
A
Transfer
Function
10% to 90% of input
T
T
Supply Voltage
3 Vdc to 10 Vdc
0010
0015
10
15
4
Output Format
2
Digital I2C address:
0x29
HT
G 3/8 female
threaded
fitting per
ISO 1179
3
Digital I2C address:
0x39
4
Digital I2C address:
0x49
5
Digital I2C address:
0x59
6
Digital I2C address:
0x69
7
Digital I2C address:
0x79
0020
20
0050
50
0100
100
0200
200
0300
300
1Apart from the general configuration required, other customer-specific requirements are also possible. Please contact Honeywell.
6Sensing and Internet of Things
Honeywell ZephyrTM Digital Airflow Sensors
HAF Series—High Accuracy: 10, 15, 20, 50, 100, 200, 300 SLPM
Figure 5. Accuracy and Total Error Band
10, 15, 20, 50, 100, 200 SLPM 300 SLPM only
Figure 4. Nominal Digital Output: 10, 15, 20, 50, 100, 200, 300 SLPM
Error (%FS)
0
%FS
10 100
Ideal
Accuracy:
0%FS to 14.3%FS = 0.5%
14.3%FS to 100%FS = 3.5%
20 50 90700
4.00%
3.00%
2.00%
1.00%
30 40 60 80
Total Error Band:
0%FS to 12.5%FS = 0.5%
12.5%FS to 100%FS = 4.0%
-1.00%
-2.00%
-3.00%
-4.00% 0
%FS
10 10020 50 90700
4.00%
3.00%
2.00%
1.00%
-1.00%
-2.00%
-3.00%
30 40 60 80
Ideal
Accuracy:
0%FS to 14.3%FS (0 SLPM to 43 SLPM) = 0.5%
14.3%FS to 100%FS (43 SLPM to 300 SLPM) = 3.5%
Total Error Band:
0%FS to 14.3%FS (0 SLPM to 43 SLPM) = 0.5%
14.6%FS to 66.7%FS (44 SLPM to 200 SLPM) = 4.0%
66.7%FS to 100%FS (200 SLPM to 300 SLPM) = 7.0%
-4.00%
-5.00%
-6.00%
-7.00%
-8.00%
8.00%
7.00%
6.00%
5.00%
Error (%FS)
TEB = 2.65%
at 200 SLPM
TEB = 7.00%
at 300 SLPM
TEB = 4.67%
at 200 SLPM
TEB = 0.5%
at 43 SLPM
Digital Output (Counts)
Full Scale Flow (%)
0
0 100
3276
4914
6552
8190
9828
11466
13104
14742
16380
18018
1638
7
Sensing and Internet of Things
Honeywell ZephyrTM Digital Airflow Sensors
HAF Series—High Accuracy: 10, 15, 20, 50, 100, 200, 300 SLPM
Digital Interface
For additional details on the use of Zephyr with digital output see the Technical Note “I2C Communications with Honeywell
Digital Airflow Sensors”.
The sensor uses the I2C standard for digital communication with a slave address specified in the Nomenclature and Order Guide
in Figure 2. Following sensor power-up, each of the first two read sequences shown in Figure 7 will respond with 2 bytes of the
unique 4-byte Serial Number. The first read after power-up will respond with the two most significant bytes of the Serial Number,
while the second read will respond with the two least significant bytes of the Serial Number. For reliable performance, allow
sensor to be powered for the sensor startup time before performing the first read, then allow a 10 ms command response time
before performing the second read.
Figure 6. Flow vs Pressure Drop: 10, 15, 20, 50, 100, 200, 300 SLPM
Flow
(SLPM)
Typical Pressure Drop
mbar inH2OkPa
00.000 0.000 0.000
10.103 0.042 0.010
20.206 0.082 0.021
40.396 0.159 0.040
80.803 0.322 0.080
10 1.027 0.412 0.103
12 1.279 0.513 0.128
14 1.549 0.621 0.155
15 1.686 0.676 0.169
16 1.820 0.730 0.182
18 2.126 0.853 0.213
20 2.444 0.980 0.244
25 3.320 1.332 0.332
50 9.314 3.736 0.931
75 17.553 3.736 1.755
100 27. 979 3.736 2.798
125 40.533 3.736 4.053
150 54.881 22.017 5.488
175 71.158 28.546 7.116
200 89.506 35.907 8.951
225 109.363 43.873 10.936
250 131.037 52.568 13.104
275 154.389 61.936 15.439
300 179.235 71.904 17.9 24
Table 6. Ideal Transfer Function
Item Equation
Digital Output Code 16384 * [0.1 + 0.8 * (Flow Applied/Full Scale Flow)]
Flow Applied Full Scale Flow * [(Digital Output Code/16384) - 0.1]/0.8
0.000
3.447
6.895
10.342
13.790
17.237
20.684
050 100150 200250 300350
Pressure Drop (kPa)
Flow (SLPM)
8Sensing and Internet of Things
Honeywell ZephyrTM Digital Airflow Sensors
HAF Series—High Accuracy: 10, 15, 20, 50, 100, 200, 300 SLPM
Table 9. Sensor Response Descriptions
Sensor Response
(Hexadecimal) Response Name Response Description
0xCCA5 POSACK non-response command was executed successfully
0xCC99 BadCommand command byte was not recognized
0xCC9A BadParam command sent with incorrect parameter bytes
0xCC9B Failure command failed during execution
0xCC90 BadChecksum checksum did not match stored value
0xCCBB Busy sensor is busy calculating the checksum value
Table 8. User Command Descriptions
Command Byte
(Hexadecimal) Command Name Command Description Command Response Time
(Max.)
0x01 GetSerialNumber Next two read requests will each return two bytes of
the sensor’s unique 4-byte Serial Number. 10 ms
0x02 PowerOnReset Force Power-On reset of sensor microcontroller. 20 ms
0x03 Checksum
Calculates EEPROM Checksum and compares to
production Checksum value. If the values match,
the next read request will respond with 0xCCA5.
Otherwise, the next read will respond with 0xCC90.
1 s
1
Figure 7. Sensor I2C Read and Write Sequences
Start condition
SA6 A5 A4 A3 A0A2 A1 1SA D7 D6 D5 D3 D2 D1 D0 MA D6 D4 D3 D2 D1 D0
MN
SD4 D5D7
SDA
SCL
SA6 A5 A4 A3 A0A2 A1 1SA D7 D6 D5 D3 D2 D1 D0 SA SD4
SDA
SCL
Stop condition
Address bit
Read/write bit
Data bit
Slave ACK
Master ACK
Master NACK
S
S
D7
A6
1
SA
MA
MN
Master pulls SDA from high to low while SCL remains high
Master allows SDA to float from low to high while SCL remains high
I2C Slave Address is the 7 Most Significant Bits for the first transmitted byte
Read = 1, Write = 0
Slave pulls SDA low
Master pulls SDA low
Master allows SDA to float high
I2C Read: Slave responds to Master with data
Data Byte 0 (Most Significant) Data Byte 1 (Least Significant)
Command Byte
I2C Read: Master sends data to Slave
Bit Name Description
Read = 1, Write = 0
The maximum sink current on SCL or SDA is 2 mA. Therefore, if the pull-up resistors are biased by VDD, and if VDD reaches
the maximum supply voltage of 6 V, then the pull-up resistors for SCL and SDA must be greater than 3.0 kOhm to limit the sink
current to 2 mA. The typical value for SCL and SDA pull-up resistors is 4.7 kOhm (this value depends on the bus capacitance and
the bus speed).
After the power-up read sequence described above, the sensor will respond to each I2C read request with a 16-bit (2 byte)
digital flow reading. Read requests taken faster than the Response Time (1 ms) are not guaranteed to return fresh data. The first
two bits of each flow reading will be ‘00’, while non-flow responses (such as error and status codes) will begin with ‘11’. There
are several user commands available as shown in Table 8. Following an I2C write sequence of a user command, the sensor will
respond to the next I2C read request with a 16-bit response. Possible responses to user commands can be seen in Table 9.
9
Sensing and Internet of Things
Honeywell ZephyrTM Digital Airflow Sensors
HAF Series—High Accuracy: 10, 15, 20, 50, 100, 200, 300 SLPM
Port Style: 22 mm OD Tapered Male Fitting per ISO 5356
Figure 8. Mounting Dimensions (For reference only: mm [in].)
Port Style: Manifold Mount
68
[2.7]
30
[1.2]
110
[4.3]
39,5
[1.56]
18,3
[0.72]
14
[0.6]
21,0
[0.83]
2X 5,70
[0.22]
14,8
[0.58]
2X 21,0
[0.83]
35
[1.4]
42,4
[1.67]
54
[2.1]
51,5
[2.03]
18,0
[0.71]
2X 4,50
[0.177]
68
[2.7]
2X 18,3
[0.72]
14,5
[0.57]
14,8
[0.58]
14
[0.6]
39.5
[1.56]
2X 5,20
[0.205]
14,5
[0.57] 44,0
[1.73]
54,4
[2.14]
35,1
[1.38]
44,0
[1.73]
54,4
[2.14]
B
C
AA
51,5
[2.03]
54
[2.1]
4X 4,50
[0.177]
33
[1.3]
42,4
[1.67]
8
[0.3]
4,0
[0.16]
63,2
[2.49]
87
[3.4]
4X 15,0
[0.59]
34,5
[1.36]
4,0
[0.16]
63,2
[2.49]
87
[3.4]
71,2
[2.80]
4X 5,20
[0.205]
8
[0.3]
16,0
[0.63]
55,2
[2.17]
44,0
[1.73]
54,4
[2.14]
14,5
[0.57]
30,0
[1.2]
14,6
[0.58]
4X 5,60
[0.220]
33,0
[1.30]
44,0
[1.73]
54,4
[2.14]
22,0
[0.87]
30,6
[1.20]
55,2
[2.17]
71,2
[2.80]
D
C
B
A
2X 13,0 DIA.
[0.51]
A
22,0
[0.87]
16,0
[0.63]
Mounting Footprint
Mounting Footprint
Pin 1.
2X 10-32 pan head screws 1,13 N m [20 in-lb] torque.
15 mm ID/22 mm OD tapered fitting per ISO 5356.
A
B
C
Pin 1.
4X 10-32 pan head screws 1,13 N m [20 in-lb] torque.
2X Gland for O-Ring AS568-113, 13,94 mm ID x 2,62 mm
[0.549 in ID x 0.103 in W. Two O-rings, AS568A-113 Durometer
A65 to A80 Silicon or Viton, are required to seal sensor to
manifold. O-rings are not included.
Flow channel.
A
B
C
D
10 Sensing and Internet of Things
Honeywell ZephyrTM Digital Airflow Sensors
HAF Series—High Accuracy: 10, 15, 20, 50, 100, 200, 300 SLPM
Figure 8. Mounting Dimensions (For reference only: mm [in], continued.)
Port Style: G 3/8 Female Threaded Fitting per ISO 1179
54
[2.1]
51,5
[2.03]
18,0
[0.71]
35
[1.4]
42,4
[1.67]
71
[2.8]
14,5
[0.57]
16
[0.63]
39,5
[1.56]
14,8
[0.58]
35,1
[1.38]
44,0
[1.73]
54,4
[2.14]
2X 1.5
[0.06]
30,0
[1.18]
71,4
[2.81]
34,5
[1.36]
54,4
[2.14]
44,0
[1.73]
14,5
[0.57]
39,5
[1.56]
14,8
[0.58]
2X 18,3
[0.72]
2X 4,50
[0.177]
2X 18,3
[0.72]
2X 5,70
[0.22]
2X 1,5
[0.06]
2X 5,20
[0.205]
16
[0.63]
BC
A
A
Table 7. Pinout (Digital Function)
Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6
NC SCL VVDD ground SDA NC
Mounting Footprint
Pin 1.
2X 10-32 pan head screws 1,13 N m [20 in-lb] torque.
ISO 1179 G3/8, recommended torque is 1,7 ±0,6 N m
[15 ±5 in lb]. Electrical connector part number is JST
(Japan Solderless Terminals) B6B-PH-K-S. Mating
connector part numbers are JST PHR-6 (socket) and
JST SPH-002T-P0.5L (crimp terminal).
A
B
C
Honeywell Sensing and Internet of Things
9680 Old Bailes Road
Fort Mill, SC 29707
www.honeywell.com
For more information
Honeywell Sensing and Internet of
Things services its customers through a
worldwide network of sales offices and
distributors. For application assistance,
current specifications, pricing or the
nearest Authorized Distributor, visit
sensing.honeywell.com or call:
Asia Pacific +65 6355-2828
Europe +44 (0) 1698 481481
USA/Canada +1-800-537-6945
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.
WARNING
MISUSE OF DOCUMENTATION
• The information presented in this datasheet 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.
ADDITIONAL INFORMATION
The following associated literature is available on the
Honeywell web site at sensing.honeywell.com:
• Product line guide
• Product range guide
• Technical Information
– I2C Communications with Honeywell Digital Airflow
Sensors
– Gas Media Compatibility and Correction Factors
• Application Specific Information
008268-5-EN | 5 | 02/18
© 2018 Honeywell International Inc.
Warranty/Remedy
Honeywell warrants goods of its manufacture as being free
of defective materials and faulty workmanship during the
applicable warranty period. Honeywell’s standard product
warranty applies unless agreed to otherwise by Honeywell in
writing; please refer to your order acknowledgment 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 that Honeywell, in its sole discretion, 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. In no
event shall Honeywell be liable for consequential, special, or
indirect damages.
While Honeywell may provide application assistance personally,
through our literature and the Honeywell web site, it is buyer’s
sole responsibility 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 writing.
However, Honeywell assumes no responsibility for its use.
