Features
? HART™ digital communication
? Better than +/- 0.5% combined error
? 4 - 20 mA loop-powered output
? 0 - 25 to 0 -10,000 psi
? Explosion Proof, ATEX/Intrinsically Safe approved
? Meets PED and CE requirements
Benefits
? Configurable via handheld
? Precise repeatable pressure measurements
? Output supplied directly to DCS or PLC
? Customer defined pressure ranges
? Approved for hazardous environments
? Meets new EC requirements
Description
TEMPERATURE & MECHANICAL CHARACTERISTICS
Max Diaphragm Temperature: 600oF (315oC)
Zero Shift (due to temperature change):
1 psi/100oF Typical (from 75 to 450oF)
2 psi/100oF Typical (from 450 to 600oF)
Electronics Operating Temperature:
-20o to 185oF (-29o to 85oC)
Effects over Compensated Temperature Range of
0o to 150oF (-18o to 65oC) - Zero & Span (each):
0.01% FS/oF max (0.02% FS/oC max)
Mounting Bolt Torque: 125 inch/lbs. maximum
Standard Wetted Parts: Dymax® coated 15-5 PH SST
PERFORMANCE CHARACTERISTICS
Output: 4 - 20 mA, with optional HART™
Input Voltage: 16 - 36 Vdc (Standard)
16 - 30 Vdc (ATEX & Intrinsically Safe Applications)
Combined Error: +/- 0.5% FSO
(Including Linearity, Repeatability & Hysteresis)
Repeatability: +/- 0.1%FSO
Rangability: 3:1 Turndown
Over Pressure: 2 X FSO < 7,500 psi;
1.5 x FSO for 10,000 psi
Zero Balance Adjustment Range: -40% to +10%;
-80% to +20% for < 500 psi
Load Resistance: 500 Ω @ 26 Vdc, 1000 Ω @ 36 Vdc
The SPX2291 is a smart 4 - 20 mA button seal pressure transmitter designed for use in hazardous
locations. The SPX2291 is all welded construction that features a large diaphragm and mounting flange
for easy installation. Optional thermocouple or RTD configurations are available to provide melt
temperature. The SPX2291E has explosion proof approval for Class 1, Division I, Groups A, B, C & D.
The explosion proof model employs a conduit fitting with 42" leads. The SPX2291S is ATEX/Intrinsically
Safe approved for II 1 G 100a Eex ia IIC, Zones 0 and 1. The intrinsically safe and ATEX models can be supplied with either a conduit fitting or a hermetic 6 pin Bendix connector.
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