Honeywell ST700-STD720-E1AC4AS-1-A-AHB-11S-A-00A0 Smart Differential Pressure Transmitter

This is Honeywell SmartLine STD720 smart differential pressure transmitter with 100kPa measuring range. It adopts 316SS process head + 316L diaphragm, silicone oil filling, 1/4″ NPTF process connection, HART protocol, and with local display. Suitable for general industrial differential pressure measurement applications.

1. Model Segment Definition (Full Breakdown)

2. Core Specification Table

3. Accessory List (Standard + Optional)

Standardkonfiguration

1. Transmitter Main Unit: Including sensor module, electronic module and housing
2. Process Connection Gasket: Glass-filled PTFE (Standard)
3. Montagehalterung: Standard bracket for pipe or wall mounting
4. Klemmenblock: Built-in terminal, supports 2-wire connection
5. Operation Manual: Installation, commissioning and maintenance guidelines
6. Calibration Certificate: Factory calibration record with traceable accuracy

Common Optional Accessories

4. Competitor Replacement / Cross-brand Comparison

Replacement Key Points:

1. Match measuring range, accuracy grade and static pressure resistance
2. Keep identical process connection type (NPTF / Flansch)
3. Ensure compatibility of communication protocol (HART version)
4. Mounting dimension and weight shall meet site requirements
5. Auswahlrichtlinien & Alternative Lösungen

Core Selection Factors

1. Messbereich: Confirm actual differential pressure; STD720 turndown 100:1 covers 0–1kPa ~ 0–100kPa
2. Static Pressure Condition: System static pressure ≤10MPa (AH grade); higher pressure requires BH grade (20MPa)
3. Media Property: Corrosive media requires Hastelloy C-276 or Monel diaphragm
4. Temperature Range: Above 121°C select high-temperature silicone oil (DC®704) or fluorinated fill fluid
5. Sicherheitszertifizierung: Explosion hazardous area select matched ATEX/IECEx certified model
6. Communication Requirement: Choose HART/DE for remote configuration and diagnosis

Empfohlene Alternativmodelle

Installation & Wartungsempfehlungen

1. Mounting Position: Avoid severe vibration and sharp temperature change; horizontal installation recommended
2. Process Connection: Ensure good sealing to avoid leakage affecting measurement accuracy
3. Wiring Requirement: Use shielded cable with single-end grounding to reduce EMI interference
4. Calibration Cycle: Annual calibration recommended; shorten to 6 months under harsh conditions
5. Fehlerdiagnose: Read diagnostic data via HART communicator for fast troubleshooting

Honeywell STD720-E1AC4AS-1-A-AHB-11S-A-00A0 is a high-performance smart differential pressure transmitter. Featuring 0.05% high accuracy and 100:1 wide turndown ratio, it is widely applied in flow, liquid level and pressure measurement for chemical, petroleum, power and other industries. Modular design and rich optional configurations meet customized demands of various working conditions. Während der Auswahl, focus on measuring range, static pressure, media characteristics and safety certification to match site operating conditions.

Anwendbare Branchen & Applications for Honeywell ST700-STD720-E1AC4AS-1-A-AHB-11S-A-00A0

This model is a general industrial differential pressure transmitter with standard 316L diaphragm, regular silicone oil filling, HART protocol and general explosion-proof design. It is suitable for neutral, weakly corrosive, normal temperature and pressure working conditions.

Main Applicable Industries

1. Petrochemie / Coal Chemical

Tank liquid level, distillation column differential pressure, orifice/Venturi DP flow, process pipeline differential pressure, filter blockage monitoring.

2. Thermal Power / Cogeneration / Self-owned Power Plant

Boiler drum liquid level, duct/flue wind differential pressure, circulating water/desalted water flow, flue gas filter DP interlock.

3. Wasseraufbereitung & Environmental Engineering

Municipal water supply & Drainage, industrial wastewater, pure water/ultra-pure water system; tank level, membrane system inlet-outlet DP, sewage pipeline flow, grid filter differential pressure.

4. Metallurgie & Steel / Non-ferrous Metal

Blast furnace duct negative pressure, dust removal pipeline DP, circulating cooling water flow, silo/tank level DP measurement.

5. Pharmazeutisch / Bioengineering

Purified water flow, fermenter liquid level, precision filter inlet-outlet DP; 316L material fits sanitary process conditions.

6. HVAC & Gebäudeautomation

Industrial plant & commercial complex; air conditioning supply/return water differential pressure, duct wind pressure, unit filter blockage DP alarm.

7. Cement Building Materials / Glass & Ceramics

Kiln wind pressure DP, dust bag differential pressure, silo DP level measurement, cooling water system monitoring.

8. Essen & Getränk / Zellstoff & Paper

Brewing, Getränk, paper industry; slurry level, process water circulation DP, pipeline DP flow measurement.

9. City Gas / Energy Regulating Station

Gas pipeline DP flow, regulator inlet-outlet differential pressure, pipe network pressure monitoring.

10. Bergbau & Coal Preparation / Industrial Mines

Coal washing tank level, slurry pipeline DP, dust removal negative pressure monitoring, process water flow measurement.

General Measurement Scenarios (All Industries)

Liquid level measurement for closed / open tanks

Differential pressure flow measurement via orifice, nozzle and Venturi tube

Micro differential pressure / pressure monitoring for pipelines, air ducts and flues

Blockage DP alarm and interlock for filters, dust bags and filter cartridges

Inapplicable Working Conditions

Not suitable for strongly corrosive media (concentrated acid, strong alkali, chlorine), medium temperature＞121°C, system static pressure＞10MPa. Special diaphragm, high-temperature fill fluid or high static pressure version is required instead.