Process Pressure Measurement Solution – Honeywell STG740-E1GC4A-1-A-AHB-11S-10A0 | STG700 Series
Where This Product Is Used
The Honeywell STG740-E1GC4A-1-A-AHB-11S-10A0 is a smart gauge pressure transmitter engineered for demanding industrial process environments. Typical deployment scenarios include:
- Oil & Gas Upstream/Midstream: Wellhead pressure monitoring, pipeline pressure control, separator vessel management
- Chemical & Petrochemical Plants: Reactor pressure loops, distillation column pressure measurement, storage tank monitoring
- Power Generation: Boiler drum pressure, steam header monitoring, turbine inlet/outlet pressure control
- Pulp & Paper / Water Treatment: Filter differential pressure indication, pump discharge pressure, process vessel pressure
- Pharmaceutical Manufacturing: Clean-room process pressure, autoclave pressure monitoring, CIP/SIP system integration
This transmitter integrates directly into PLC and DCS architectures via 4–20 mA HART, enabling real-time pressure data acquisition with remote configuration capability.
Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Honeywell Process Solutions |
| Model / SKU | STG740-E1GC4A-1-A-AHB-11S-10A0 |
| Series | STG700 SmartLine Gauge Pressure Transmitter |
| Measurement Type | Gauge Pressure |
| Output Signal | 4–20 mA with HART (Highway Addressable Remote Transducer) |
| Process Connection | Per model code (refer to STG700 datasheet for flange/thread options) |
| Wetted Materials | 316L Stainless Steel (standard); Hastelloy C available |
| Enclosure Rating | IP66/IP67, NEMA 4X |
| Ambient Temperature Range | –40°C to +85°C (–40°F to +185°F) |
| Power Supply | 10.5–42.4 VDC (HART mode) |
| Accuracy | ±0.065% of span (reference accuracy) |
| Turndown Ratio | Up to 100:1 |
| Weight | Approx. 300 g (transmitter body) |
| Approvals | ATEX, IECEx, FM, CSA (see compliance section) |
Note: Full model code breakdown available upon request. Contact Konmask for datasheet and dimensional drawings.
Why Engineers Specify This Model
- SmartLine Platform: Honeywell’s STG700 series features an advanced sensor module with industry-leading stability and long-term drift performance, reducing recalibration frequency.
- HART 7 Communication: Enables remote diagnostics, loop testing, and configuration without breaking the 4–20 mA loop — critical for live process environments.
- High Overpressure Protection: Designed to withstand significant overpressure events without zero/span shift, protecting both the instrument and the process.
- Plug-and-Play DCS Integration: Pre-configured HART device descriptions (DD/DTM) are available for Honeywell Experion, Emerson DeltaV, Siemens PCS 7, and Yokogawa CENTUM.
- Compact, Rugged Housing: Dual-compartment housing with separate terminal and electronics sections minimizes moisture ingress risk in outdoor or wash-down environments.
- Low Total Cost of Ownership: Stable baseline accuracy and minimal maintenance requirements translate to reduced lifecycle costs versus legacy transmitters.
Complete System Bill of Materials
For a complete gauge pressure measurement loop using the STG740-E1GC4A-1-A-AHB-11S-10A0, engineers typically specify:
- STG740-E1GC4A-1-A-AHB-11S-10A0 — Gauge Pressure Transmitter (this unit)
- Impulse tubing & manifold valve (2-valve or 3-valve block, SS316)
- HART Field Communicator (e.g., Emerson 475 / Honeywell MC Toolkit)
- DCS/PLC AI card with HART multiplexer (for multi-drop configurations)
- Cable gland & conduit fittings (M20 or ½” NPT, IP-rated)
- Instrument mounting bracket (2″ pipe mount or panel mount)
- Surge protection barrier (for hazardous area installations)
Contact Konmask for bundled sourcing of complete measurement loop components.
Compliance & Industry Standards
- Hazardous Area: ATEX II 2G Ex ia/ib IIC T4–T6 Ga/Gb; IECEx certified
- North America: FM Approved (Intrinsically Safe, Explosion-Proof); CSA certified
- EMC: EN 61326-1 (Industrial environment)
- Functional Safety: IEC 61508 SIL 2 capable (with SIL documentation package)
- Pressure Equipment: PED 2014/68/EU compliant
- RoHS: Compliant
Quality Assurance & Sourcing
Konmask.com sources industrial automation components through verified supply channels with full traceability. Every unit dispatched undergoes:
- Visual and dimensional inspection against OEM specifications
- Authenticity verification (hologram, label, serial number cross-check)
- Functional continuity check prior to packaging
- Secure anti-static packaging with humidity indicator cards
We provide original manufacturer documentation, including calibration certificates and material traceability records, upon request. All products are covered by Konmask’s quality guarantee policy.
How to Source This Part
- Add to Cart — Place your order directly on Konmask.com for standard lead times.
- Request a Quote — For volume orders (>5 units), OEM project pricing, or urgent delivery, contact our team at support@konmask.com.
- Technical Pre-Sales — Need help confirming the correct model code or compatible accessories? Our engineers are available via email or phone.
- Export & Cross-Border Orders — We support international shipping with full export documentation (commercial invoice, packing list, CO, FORM E where applicable).
Application-Specific FAQ
Q: Is the STG740-E1GC4A-1-A-AHB-11S-10A0 suitable for steam service?
A: Yes, with appropriate condensate pot installation to protect the sensor from direct steam contact. Consult the STG700 installation guide for steam application best practices.
Q: Can this transmitter be used in SIL 2 safety loops?
A: The STG700 series is IEC 61508 SIL 2 capable. A separate SIL documentation package (FMEDA report) is required — contact Konmask to obtain this documentation.
Q: What HART version does this transmitter support?
A: The STG740 supports HART Protocol Revision 7, backward compatible with HART 5/6 hosts.
Q: Is remote mounting of the electronics head possible?
A: Yes, Honeywell offers a remote electronics option for the STG700 series. Please confirm the model code suffix for remote-mount configurations when ordering.
Q: What is the typical lead time for this part?
A: In-stock units ship within 1–3 business days. For out-of-stock items, standard lead time is 4–8 weeks from Honeywell. Contact Konmask for current stock status.
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