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Industrial Smart Pressure Transmitter, Long Term Reliability
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'
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'
CE Approved