STD720-E1HS4AS-1-A-AH0-11S-B-10A0-F1-0000 STD700 Pressure Transmitter

Honeywell STD720-E1HS4AS-1-A-AH0-11S-B-10A0-F1-0000 Differential Pressure Transmitter Overview

The Honeywell STD720-E1HS4AS-1-A-AH0-11S-B-10A0-F1-0000 provides precision differential pressure measurement for complex industrial control loops. As part of the advanced Honeywell STD700 transmitter family, this unit utilizes micro-piezoresistive sensor technology to deliver superior span stability and static pressure performance up to 4500 psig. Built with 316 stainless steel wetted components and silicone oil fill fluid, it ensures robust compatibility with aggressive liquid and gas media. Global PLC Spare HUB's Insight highlights this model for its exceptional measurement accuracy, FM hazardous location certifications, and reliable HART digital communication integration.

Model STD720-E1HS4AS-1-A-AH0-11S-B-10A0-F1-0000 Configuration Breakdown

• Manufacturer: Honeywell
• Product Series: Honeywell STD700 Series
• Complete Model Number: STD720-E1HS4AS-1-A-AH0-11S-B-10A0-F1-0000
• Measurement Range (Span): URL/LRL ±400 H2O (1000 mbar), Min Span 4.0 H2O (10 mbar)
• Wetted Materials (E): 316 Stainless Steel process heads and diaphragms
• Fill Fluid (1): Silicone Oil 200
• Process Connection (H): 1/2" NPT female matching head configuration
• Bolts & Nuts (S): 316 Stainless Steel fastener construction
• Vent / Drain (4): Dual-ended standard vent located at the end
• Gasket (A): Glass-filled Teflon/PTFE material
• Static Pressure (S): Standard static rating up to 4500 psig (315 bar)
• Orientation & Approval (1-A): Standard head orientation with FM explosion-proof and intrinsically safe ratings
• Housing & Output (A-H): Polyester powder-coated aluminum housing with 1/2 NPT conduit and 4-20mA/HART output
• Options & Calibration (0-1-1-S-B-10A0-F1-0000): Standard diagnostics, high failsafe mode, carbon steel angle bracket, certificate of conformance, and 3.8 Kg weight

Technical Specifications & Performance Parameters

Diagnostic Capabilities & Maintenance Efficiency

• Embedded standard diagnostics monitor loop integrity, electronic health, and sensor operational status.
• HART communication protocol allows remote transmitter configuration and status interrogation without loop disruption.
• Configurable failsafe modes ensure safe system response during unexpected power or signal anomalies.
• Dual-ended vent and drain design simplifies purging of trapped gases or condensation during commissioning.

Compatible Equipment & Application Environments

• Differential pressure monitoring across industrial filters, heat exchangers, and distillation columns.
• Level measurement in pressurized or vented closed industrial process tanks.
• Upstream oil and gas extraction manifolds and transmission pipelines.
• Chemical processing loops handling corrosive liquids and gases requiring 316 stainless steel wetted parts.

Packaging, Warranty & Logistics

• Industrial-grade protective packaging designed to secure the 3.8 Kg transmitter during transit.
• Standard 12-month manufacturing warranty covering component and assembly defects.
• Express 24-48 hour order dispatch windows for streamlined project deployment.
• Global delivery services handled via reliable logistics carriers including FedEx, UPS, and DHL.

Frequently Asked Questions

What is the maximum static pressure rating for this particular model?

It features a standard static pressure rating of up to 4500 psig (315 bar).

What wetted materials are utilized to resist corrosive process fluids?

Both the process heads and isolating diaphragms are constructed from high-grade 316 Stainless Steel.

How is communication established with the control system?

It utilizes a standard 4-20 mA analog output overlaid with digital HART protocol communication.

What engineering factors should be considered regarding the mounting hardware?

The unit includes a carbon steel angle bracket, so ensure your installation environment accounts for carbon steel corrosion protection if exposed to external moisture.

Why is selecting the correct fill fluid important for differential pressure transmitters?

Silicone Oil 200 transfers pressure from the diaphragm to the sensor element while maintaining thermal stability across varied operational temperatures.

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