MRA21
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Catalog excerpts

MRA21 - 1

MRA21 OEM Piezo-Resistive Pressure Sensor Features High Measuring Accuracy Pressure Measurement Range of -1 to 1000bar Compact and Rugged Model Wide Range of Media Compatibility Low Static and Thermal Errors Description MRA21 series with SS316L or Hastelloy diaphragm is a rugged Piezo-resistive silicon technology based pressure sensing element suitable for OEM applications in harsh environments. This compact pressure sensor offers great flexibility and reliability for a wide range of applications with highly competitive pricing. MRA21 is available in pressure ranges from -1 to 1000bar with an output of mV. It is suitable for pressure measurement of gases & liquids compatible with SS316L. While the standard Precision is 0.5% FS, you can optionally get a precision of 0.25% FS. The robust construction of MRA21 with its high performance makes it ideal for demanding long term applications. Applications Process control systems Production machinery Chemical industries Hydrology research Machine tool control Hydraulic pumps Air conditioning and compressed air lines Power plants Agricultural equipment Technical Specifications Pressure media: all fluids compatible with SS316L or hastelloy Compensated temp. range: 0 to 70°C Temp. coefficient of zero: 0.02% FS /°C Pressure references: Gauge, Sealed Gauge, Absolute Temp. coefficient of span: 0.02% FS /°C Overpressure rating: 150% FS Excitation: 1.5mA Operating temp. range: -20 to +80°C Input / output resistance: 2-6kΩ Insulation resistance: 100MΩ @ 50VDC Electrical connection: 4- wire or 6 Kovar-pin connection Precision: 0.5% FS (standard), 0.25% FS, combined LRH error Long term stability: <0.2% FS/year Diaphragm materials: SS316L, Hastelloy or others Sealing: fluoro-rubber sealing ring Life cycle: > 108 cycles Response time: ≤ 1ms (10%-90%) Filled oil: silicon oil or olive oil (for sanitary applications) Vibration: 20g (20 to 5000Hz) Net weight: 23g MeasureX Pty Ltd U14, 42 Garden Boulevard, Melbourne VIC, 3172, Australia Tel: +61 3 9558 2420 email: Sales@MeasureX.com.au Website: www.MeasureX.com.au

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MRA21 - 2

MRA21 OEM Piezo-Resistive Pressure Sensor Dimensions Connection Diagrams Ordering Code MRA21 Range [-1/0]; [-0.2/0]; [0/+0.2]; 1, 2.5, 4, 6, 10, 16, 25, 50, 100, 250, 400, 600, 1000bar or other ranges in bar or psi Pressure Reference VG (vented gauge) SG (sealed gauge) Abs (absolute) Precision ± 0.5% FS 0.25% FS Output Signal 70mV 40mV Pressure Port G1/4(¼" BSPP male) No pressure port G1/2(½" BSPP male) others Electrical Connection 4wire cable 6 pins connection Diaphragm Material SS (316L) Hastelloy (C-276) Filled Oil Silicone Olive SG Note: All specifications are subject to change without...

Open the catalog to page 2

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