Heavy Duty Pressure Transducers
32313757
PX3 Series, 1 bar to 50 bar | 15 psi to 700 psi
Issue F
Datasheet
Figure 2. PX3 Series External Freeze/Thaw Resistance
(Shown with mating connector, see Figure 5.)
• Reduced current consumption: Helps to reduce energy costs,
and enhances product life if used in battery driven systems.
• Media compatibility: Common HFC (hydrofluorocarbon)
refrigerants (R410A and R134A), next generation low
global warming potential (GWP) refrigerants (R448A/
Solstice® N40, R32 and R1234ZE), engine oil, petroleum-
based hydraulic fluids, brake fluids (DOT3), and dry air. For
ammonia and other corrosive media, see Honeywell’s SPT Series.
DIFFERENTIATION
• Optional diagnostics mode: Beneficial in applications where
the sensor functionality and the need to know internal or
external failure modes is critical.
DESCRIPTION
Honeywell’s PX3 Series Heavy Duty Pressure Transducers
use piezoresistive sensing technology with ASIC (Application
Specific Integrated Circuit) signal conditioning in a brass
housing and Metri-Pack 150, DIN, or cable harness electrical
connections. The PX3 Series is calibrated and temperature
compensated from -40°C to 125°C ꢁ-40°F to 257°F].
• Great customer value: Multiple configuration possibilities
provide flexibility of use in the application with no upfront
NRE or tooling charges.
• Durable: Provides the tough environmental specifications
needed, including insulation resistance and dielectric
strength, external freeze-thaw resistance (see Figure 2),
and EMC performance.
VALUE TO CUSTOMERS
• 4 mA to 20 mA output is temperature compensated up to 125°C.
• Total Error Band (TEB) 1.0 ꢀFSS from -20°C to 85°C:
Provides indication of the sensor’s true measurement
performance over a specified temperature range; small
error promotes system uptime and efficiency. (See Figure 1.)
FEATURES
• Pressure range: 1 bar to 50 bar | 15 psi to 700 psi (absolute
and sealed gage)
• Ratiometric output: 0.5 Vdc to 4.5 Vdc or 0.33 Vdc to 2.97 Vdc
• 4 mA to 20 mA output supports transmission of output
signals over longer distances
Figure 1. TEB Definition and Temperature Performance
• Calibrated and temperature compensated
• Total Error Band: 1.0 ꢀFSS from -20°C to 85°C ꢁ-4°F to 185°F]
• External freeze/thaw resistance: 6 cycles from -30°C to
50°C ꢁ-22°F to 122°F]
Sources of Error
Offset
Full Scale Span
Pressure Non-Linearity
Total
Error
Band
Accuracy
BFSL
• Insulation resistance: >100 MOhm, 1500 Vdc (in dry, non-
ionized air)
Pressure Hysteresis
Pressure Non-Repeatability
Thermal Effect on Offset
Thermal Effect on Span
Thermal Hysteresis
• Dielectric strength: AC1500V, 1 min. or AC1800V, 1 s (in dry, non-
ionized air)
• Current consumption: 3.5 mA max.
• EMC (radiated immunity): 200 V/m (ratiometric voltage
output), 140 V/m (current output) per ISO 11452-2
• Ingress protection IP67 (Metri-Pack connector), IP69K
(cable harness), IP65 (DIN connector)
3
2
1
Total Error Band
• RoHS, REACH, and CE compliant
0
-1
-2
-3
• Six industry-standard pressure port types, including a tube port
which provides for hermetically-sealed process connection
POTENTIAL APPLICATIONS
• Industrial: Refrigerant pressure monitoring in HVAC/R
systems; dry air system pressure, process controls and
automation
-40°C
[-40°F]
0°C
85°C
[185°F]
-20°C
[-4°F]
125°C
[257°F]
[32°F]
Temperature (°C [°F])
• Transportation: Dry air system monitoring; hydraulic, brake,
and engine oil fluid pressure monitoring; air brake pressure
monitoring
• Higher insulation resistance and dielectric strength:
Protects the user and sensor in high over-voltage
situations, and ensures that the device is compliant with
industry standards.
• Higher EMC performance: Operates more reliably in the
presence of electro-magnetic fields, such as near wireless
signals, RF communication, and electrical devices.
• Higher external freeze/thaw resistance: Survives exposure to
frost, commonly found in refrigeration systems. (See Figure 2.)
The PX3 Series is not recommended for use with media
involving water, saturated air such as steam and vapor, and
ammonia.
PORTFOLIO
Honeywell’s PX3 Series joins the PX2 Series, MLH Series, and
SPT Series heavy duty pressure transducers.
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