Honeywell PX2 Installation Instructions Manual
Installation Instructions for the
PX2 Series Heavy Duty Transducers
GENERAL INFORMATION
Honeywell’s PX2 Series Heavy Duty Pressure Transducer is
a portfolio of highly congurable pressure sensors that use
piezoresistive sensing technology with ASIC (Application Specic
Integrated Circuit) signal conditioning in a stainless steel housing.
The PX2 Series is fully calibrated and compensated for offset,
sensitivity, temperature effects and non-linearity using the onboard ASIC.
OVERPRESSURE
CAUTION
PRODUCT DAMAGE
• Do not exceed the overpressure.
Failure to comply with these instructions may result in
product damage.
If the overpressure rating is exceeded, the life of the PX2 Series
may be reduced and electrical failure may occur. Both static
and dynamic overpressure must be considered, particularly in
hydraulic system applications. Hydraulic pressure uctuations
can have very high and very fast peak pressures, as in a water
hammer effect.
An oscilloscope is recommended for determining if high-pressure
transients exist in a system. If system pressure pulses are
expected, choose a transducer with a pressure rating high enough
to allow continuous operation at the highest expected pressure
spikes.
A pressure ‘snubber’ may be used to reduce the peak pressure
applied to the transducer.
MEDIA COMPATIBILTY
CAUTION
PRODUCT DAMAGE
• Use non-abrasive, chemically compatible media to prevent
damage to diaphragm or port materials.
Failure to comply with these instructions may result in
product damage.
The PX2 Series uid path is an assembly of 304 stainless steel,
epoxy, alumina, glass, and silicon.
Table 1. Compatible Media
Refrigerants Other Media
•
mixture of R245Fa and transdichloroethylene
INSTALLATION
R410A
R134A
R123ZE
Sensing and Control
engine oil 10W30
brake uid DOT3
hydraulic uid
tap water
compressed air
Ratiometric voltage devices require either a regulated 3.3 Vdc (AA
and AB) or a regulated 5.0 Vdc supply (AC and AD), (see Table 2).
All other versions can use an unregulated supply within the ranges
noted under the excitation specications. Ensure the power supply
is off while wiring.
ELECTROMAGNETIC ENERGY/NOISE
CAUTION
PRODUCT DAMAGE/ERRATIC OPERATION
• Do not use in areas where electromagnetic energy may affect
transducer operation.
Failure to comply with these instructions may result in
product damage.
The PX2 Series has been rated for high immunity to electrical
noise; however, care should be taken when used around high
voltage sources that emit high levels of radiated electromagnetic
energy like variable frequency motor drives, solenoids, radio
transmitters and engine ignition systems. The use of shielded
cable and grounding of pressure port is also recommended.
FUNCTIONAL TEST
1. Connect the transducer to a dc voltage supply (off). The supply
voltage should be set within the range specied for the model.
2. Based on the transducer’s specied output, connect the output
lead(s) to a digital dc or mA meter.
3. With no pressure on the transducer, turn on the power supply
and read the output signal on the voltmeter. The reading
should correspond to the specication indicated for null offset.
If not, check the connections, wire color code and the setting
of the power supply.
Issue 8
50052336
CAUTION
PRODUCT DAMAGE
•
Ensure torque specications are determined for the specic
application. Values provided are for reference only. NPT ports
are not specied with torque values. Correct installation
is based on the number of Turns From Finger Tight (TFFT).
(Mating materials and thread sealants can result in
signicantly different torque values from one application to
the next.)
• When using NPT ports in stainless steel manifolds, use
a thread sealant with anti-seize properties to prevent thread
galling. Ensure the sealant is rated for the application.
• Use appropriate tools (such as an open ended wrench or
deep well socket) to install transducers.
• Always hand-start transducers into the hole to prevent cross
threading and damage.
• Do not subject the transducer to high temperatures from
soldering, brazing, or welding of the system plumbing
Failure to comply with these instructions may result in
product damage.
PX2 Series Heavy Duty Presssure Transducers
WIRING INSTRUCTIONS
The wiring code for electrical connection is shown in Figure 3.
Table 2. Electrical Specications
NOTICE
• To ensure proper environmental sealing and electrical
connections when using a connector, follow the connector
manufacturer’s installation guidelines.
• All terminal cavities must be sealed using the correct wire
gauge and seal combination.
• If only two leads are used, any additional terminal cavities
should be sealed per the connector manufacturer’s
installation guide.
• Honeywell recommends using a crimping tool for crimping
wires to the connector terminals.
• Contact the individual connector manufacturer for connector
wiring.
ISSUE 8
50052336
Current
Output
Regulated Output
1
Characteristic
Ratiometric Output
Output Transfer Function Order Code
AA AB AC AD CH BC BD BE BG
1
Output transfer function
null output value
full scale output value
full scale span (FSS)
operating supply voltage, min.(Vs)
operating supply voltage, typ. (Vs)
operating supply voltage, max. (Vs)
:
10% of Vs
90% of Vs
80% of Vs
2
2
2
4.75 V
5 V
5.25 V
5% of Vs
95% of Vs
90% of Vs
4.5 V
5 V
5.5 V
10% of Vs
90% of Vs
80% of Vs
3.135 V
3.3 V
3.465 V
5% of Vs
95% of Vs
90% of Vs
3.135 V
3.3 V
3.465 V
4 mA
4 mA
16 mA
8 V
—
30 V
1 V
6 V
5 V
9 V
4
—
30 V
0.25 V
10.25 V
10 V
13 V
3
—
30 V
0.5 V
4.5 V
4 V
8 V
3
—
30 V
1 V
5 V
4 V
8 V
3
—
30 V
3
Supply current (typ.) 5 mA 4 mA — 5.5 mA
Output load (pull up or down)
minimum
maximum
Absolute voltage ratings
minimum
maximum
6
6
maximum applied to output pin
(short circuit protection)
EMC rating
8
:
5
:
7
2 kOhm
—
-16 V
16 V
Vs
—
(Vs - 8) x
50 Ohm
-16 V
30 V
—
2 kOhm
4
—
-16 V
30 V
12 V
CE compliance:
electrostatic discharge
radiated immunity
fast transient burst
immunity to conducted disturbances
radiated emissions
40 dB 30 MHz to 230 MHz; 47 dB 230 MHz to 1000 MHz per CISPR 11
±4 kV contact, ±8 kV air per IEC 61000-4-2
10 V/m (80 MHz to 1000 MHz) per IEC 61000-4-3
±1 kV per IEC61000-4-4
3 V per IEC61000-4-6
ISO 11452-2:
radiated immunity 100 V/m 200 MHz to 2 GHz 20 V/m 200 MHz to 2 GHz
Notes:
1. The Output Transfer Function order code in the catalog listing appears as the last two digits before the nal “X”. For example, the “AA” in the
following catalog listing is the transfer function code: PX2BN1XX100PSAAX.
2. Transducer will not produce valid output when supply voltage is outside of operating range.
3. Applies at 25 °C. See Figure 2 for Regulated Output Supply Voltage.
4. Applies at 25 °C. See Figure 3 for Current Output Supply Voltage.
5. Absolute maximum ratings are the extreme limits the device can withstand without damage to the product. Voltages above these ratings may
cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability.
6. Absolute voltage applies to potential across power and ground terminals.
7. Short circuit protection between output pin and ground, and output pin and supply pin.
8. All EMC ratings veried with the Delphi Metri-Pack 150 electrical connector type.
2 Honeywell Sensing and Control
PX2 Series Heavy Duty Pressure Transducers
Figure 1. Regulated Output Supply Voltage Figure 2. Current Output Supply Voltage
ISSUE 8
50052336
Table 3. Performance Specications
1
Characteristic Parameter
Operating temperature range
Storage temperature range
Compensated temperature range
Overpressure minimum rating
Burst pressure minimum rating
2
3
4
5
6
Long term stability ±0.5 %FSS
Accuracy
Offset error
Total Error Band
Response time
Turn on time
Life
Notes:
1.
2. Operating Temperature Range: The temperature range over which the product will produce an output proportional to pressure but may not remain
within the specied performance limits.
3. Storage Temperature Range: The temperature range over which the product may safely be exposed without excitation or pressure applied. Under
these conditions the product will remain in specication after excursion to any temperatures within this range. Exposure to temperatures outside
this range may cause permanent damage to the product.
4. Compensated Temperature Range: The temperature range (or ranges) over which the product will produce an output proportional to pressure
within the specied performance limits.
5. Overpressure: The absolute maximum rating for pressure which may be safely applied to the product for it to remain in specication once pressure
is returned to the operating pressure range. Exposure to higher pressure may cause permanent damage to the product.
6. Burst Pressure: The maximum pressure that may be applied to the product without causing escape of the pressure media. The product should not
be expected to function after exposure to any pressure beyond the rated burst pressure. This rating is also the case burst rating of the product.
7. Accuracy: The maximum deviation in output from a Best Fit Straight Line (BFSL) tted to the output measured over the pressure range at 25 °C.
Includes all errors due to pressure non-linearity, pressure hysteresis, and non-repeatability.
8. Offset Error: the maximum deviation in the output signal obtained when the reference pressure is applied at 25 °C relative to the ideal transfer
function.
9. Full Scale Span (FSS): The algebraic difference between the output signal measured at the maximum (Pmax.) and minimum (Pmin.) limits of the
pressure range.
10. Total Error Band: The maximum deviation from the ideal transfer function over the entire compensated temperature and pressure range. Includes
all errors due to offset, full scale span, pressure non-linearity, pressure hysteresis, repeatability, thermal effect on offset, thermal effect on span,
and thermal hysteresis.
11. Response Time: The response time of the transducer is the maximum amount of time that the transducer will take for the transducer to output a
change from 10% to 90% of full scale in response to a 0% to 100% full scale step input pressure range.
7
8
10
11
12
13
All specications apply at 25 °C and under operating conditions unless otherwise noted.
-40 °C to 125 °C [-40 °F to 257 °F]
-40 °C to 125 °C [-40 °F to 257 °F]
-40 °C to 125 °C [-40 °F to 257 °F]
(See Table 4.)
(See Table 4.)
9
(1000 hr at 25 °C [77 °F])
±0.25 %FSS
±1 %FSS
9
9
±2 %FSS9 (-40 °C to 125 °C [-40°F to 257 °F])
<2 ms
<7 ms
min. of 10 million cycles to operating pressure
12. Turn On Time: Duration from power applied until rst valid output.
13. Life may vary depending on the application in which transducer is used. Contact Honeywell Sales and Service for Mean Time to Failure (MTTF)
data based on customer-specic usage prole.
Honeywell Sensing and Control 3
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