Honeywell STD924-E1A Differential Pressure Transmitter

Feature & Principle

It is Honeywell ST3000 900 series smart differential pressure transmitter. It adopts ion implantation silicon sensing chip, integrates temperature and static pressure compensation sensors, automatically compensates measurement error caused by process temperature and overpressure. It converts differential pressure change signal into standard 4-20mA analog signal with HART digital protocol. It supports remote zero / span adjustment, square root output for flow calculation, stable long-term drift ±0.01% per year, suitable for closed tank liquid level and throttling flow measurement.

Specifications

Model: STD924-E1A Brand: Honeywell Series: ST3000 900 Signal: 4-20mA + HART Basic accuracy: ±0.075% FS Stability: ±0.01% FS per year Power supply: 10.8 ~ 42 VDC Sensing element: Ion implanted silicon Wetted material: Optional 316L stainless steel Protection: NEMA4 / IP65 Lifecycle: Discontinued legacy spare Application: Petrochemical, refining, boiler, water treatment flow and liquid level control loop Certification: ATEX, IECEx optional

Components & Diagnostics

Silicon sensor assembly, electronic transmitter board, local indicator, process flange, sealing gasket. Common faults: signal drift, no current output, HART communication failure, diaphragm corrosion damage, zero point drifting.

Product Brief

STD924-E1A differential pressure transmitter, Honeywell ST3000 series process instrument spare widely used for orifice flow and tank level overhaul and replacement.