Product Description

The Honeywell STR12D-21A-1A0AFAAA11A0-F1 is a high-precision remote seal pressure transmitter from the ST 3000 Series 100, designed for accurate measurement in challenging industrial environments. This model features a differential pressure range of 0–10 to 0–400 inH₂O (0–25 to 0–1000 mbar) and offers a turndown ratio of 100:1, ensuring versatility across varying pressure spans. It incorporates a piezoresistive sensor that compensates for temperature and static pressure, providing exceptional accuracy and stability. The transmitter supports multiple communication protocols, including 4–20 mA analog, Honeywell Digitally Enhanced (DE), HART®, and FOUNDATION™ Fieldbus, facilitating seamless integration into diverse control systems. Built with a rugged design, it is suitable for applications in chemical and hydrocarbon processing industries, offering reliability and performance in demanding conditions.

Technical Specifications

• Output Options: 4–20 mA analog, Honeywell DE, HART®, FOUNDATION™ Fieldbus
• Accuracy: ±0.0375% of calibrated span
• Stability: ±0.01% per year
• Turndown Ratio: 100:1
• Temperature Compensation: Automatic compensation for temperature and static pressure
• Ambient Temperature Range: –55°C to +90°C
• Supply Voltage: 10.8 to 42.4 Vdc
• Load Resistance: 0 to 1440 ohms
• Damping Time Constant: Adjustable from 0 to 32 seconds
• RFI Protection: Negligible (20 to 1000 MHz at 30 volts per meter)
• Compliance: CE Conformity, SIL 2/3 certified, NAMUR NE 43 compliance option
• Enclosure Rating: NEMA 4X (watertight) and NEMA 7 (explosion proof)
• Seal Materials: 316L Stainless Steel, Monel, Hastelloy C, Tantalum
• Mounting Options: Stainless Steel or Carbon Steel (Zinc-Chromate plated) brackets
• Fill Fluids: Silicone (DC 200), CTFE, Silicone (DC 704), NEOBEE M-20, Syltherm 800
• Capillary Tubing: Armored Stainless Steel or PVC-Coated Armored Stainless Steel, lengths from 5 to 35 feet (1.5 to 10.7 meters)
• Weight: Approximately 15.4 pounds (7 kg), varies with seal type and capillary length
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