OMEGA’s PX2088S Series smart
pressure transmitters maintain a
specification conformance of at least
3σ The reliable performance of these
rugged transmitters, when coupled
with the broad selection of options,
makes these transducers an
exceptional value for tough process
applications. The PX2088S is
designed to operate safely in the
event of damage or failure to the
sensor diaphragm. The electronics
compartment is isolated from the
process by 2 seals.
A third seal isolates the field
terminals and conduit entries.
This design ensures against
housing pressurization and
process contamination.
The electronics incorporates an
ASIC module that accepts the digital
signal from the sensor, along with the
correction coefficients, then corrects
and linearizes the signal. This is then
converted to an analog signal for
retransmission. The output section
also handles the HART®
communications.
SMART FUNCTIONALITY
The PX2088S smart transducer HART® protocol allows easy access to configuration, test, and setup capabilities. The PX2088S can be configured using a HART® communicator or another HART®-based communications device. Configuration consists of two steps. First, the transmitter operational parameters are set including:
– Zero and span
– Damping
– Engineering units
Second, data can be entered into the transmitter to allow identification and physical description of the transmitter. These data include: – Tag: 8 alphanumerics
– Descriptor: 16 characters
– Message: 32 characters – Date – Integral meter installation – Remote seal information
In addition to the configurable parameters, the PX2088 software contains information that is not userchangeable. Non-configurable information includes:
– Transmitter type
– Sensor limits
– Minimum span
– Fill fluid
– Isolator material
– Module serial number
– Transmitter software revision level
SPECIFICATIONS Excitation: 10.5 to 36 Vdc unregulated, reverse polarity protected Supply Effect: <0.01% span/V Zero Elevation and Suppression: Zero can be suppressed between atmosphere (or 0 psia for absolute ranges) and the upper range limit (URL), provided the span is ≥ the minimum span and the URL does not exceed the units URL. No vacuum calibrations are allowed on the gage pressure models. Overpressure Limits: 8 and 30 psi Ranges: 120 psi >30 psi Ranges: 2x URL Process Temperature Limits: Silicon Fill: -40 to 121°C (-40 to 250°F) Inert Fill: -30 to 121°C (-20 to 250°F) Ambient Temperature Limits: Standard: -40 to 85°C (-40 to 185°F) LCD Meter: -20 to 80°C (-4 to 175°F) Volumetric Displacement: <0.00042 cm3 Accuracy: Includes linearity, hysteresis and repeatability Smart: ±0.20% of calibrated span Analog: ±0.25% of calibrated span Ambient Temperature Effect: Smart: ±(0.003% URL + 0.003% span)/°F Analog (Ranges >8 psi): -40 to 0°F ±(0.007% URL + 0.008% span)/°F; -0 to 140°F ±(0.005% URL + 0.005% span)/°F; 140 to 185°F ±(0.007% URL + 0.008% span)/°F Stability: Smart: ±0.10% URL for 12 months Analog: ±0.25% URL for 12 months Vibration: ±1% URL 4 mm pk/pk 5 to 15 Hz and constant acceleration of 2 g (15 to 150 Hz) and 1 g (150 to 2000 Hz) Process Connection: ½ to 14 FNPT Wetted Parts: 316 SS (Hastelloy® optional) Electronic Housing: Sealed to NEMA 4X (IP66), low-copper aluminum with polyurethane paint; cover O-ring is Buna-N Electrical Connections: ½ to 14 NPT conduit Fill Fluid: Silicon oil, standard. Weight: Smart: 1.11 kg (2.44 lb) Analog: 0.86 kg (1.9 lb) Fitting Material/Fill Options: (add suffix) SS/Silicon Oil: Standard Hastelloy/Silicon Oil: "-33"
† Price are shown in RMB.
Note: See Specifications for Fitting Material and Fill Fluid options.Absolute Pressure ranges and options availible, consult Part Number Builder below for model numbers.
Part Number Builder
Option Descriptions
(1)
Range (min/max span psi)
Select -30 for 0-1.5/0-30 -150 for 0-7.5/0-150 -600 for 0-30/0-600 -4K for 0-200/0-4000
(2)
Pressure Range
Select G for Gage Pressure A for Absolute Pressure
(3)
LCD Meter
Select Nothing(leave field blank) for No LCD Meter M5 for LCD Meter scaled 0-100% (adds $250)
(4)
Fill Options
Select Nothing(leave field blank) for SS/Silicon Oil Standard -33 for Hastelloy/Silicon Oil
NOTE: All combinations may not be valid, check spec sheet for valid part numbers.
