접촉기,회로 차단기,태양광 인버터,전기 계량기,태양 전지
This is Honeywell SmartLine STD720 smart differential pressure transmitter with 100kPa measuring range. 316SS 프로세스 헤드를 채택합니다. + 316L 다이어프램, 실리콘 오일 충전, 1/4″ NPTF 프로세스 연결, HART 프로토콜, 그리고 로컬 디스플레이. 일반 산업 차압 측정 응용 분야에 적합.
- Model Segment Definition (Full Breakdown)
| 분절 | 암호 | 설명 |
| 시리즈 ID | ST700-STD720 | STD720: SmartLine differential pressure transmitter, range 100kPa, turndown ratio 100:1 |
| Process Wetted Material | E1 | E = Process head: 316 스테인레스 스틸; 1 = Diaphragm: 316L stainless steel |
| 연결 & Bolt | AC4 | A = Process connection: Standard 1/4″ NPTF internal thread; C = Bolt/Nut material: Carbon steel (galvanized); 4 = Vent/Drain: Dual-ended, standard vent at end position |
| Fill Fluid | 1 | 1 = DC庐200 Silicone Oil (standard fill fluid, temperature range -40~121掳C) |
| Mounting Option | 에이 | A = No mounting option (standard mounting) |
| Static Pressure Grade & 옵션 | AHB | AH = Static pressure rating: 10MPa (1450psi); B = Option: With local display |
| 산출 & 규약 | 11에스 | 11 = Output: 4-20엄마 + HART 프로토콜; S = Safety certification: General safety approval |
| 표시하다 & 재료 | 에이 | A = Display type: Standard digital display; 재료: 표준 구성 |
| Additional Option | 00A0 | 00 = No additional options; A0 = Standard configuration without special functions |
- Core Specification Table
| 매개변수 카테고리 | Detailed Specification | 비고 |
| 기본 매개변수 | ||
| Measurement Type | Differential Pressure (DP) | STD720 specially designed for DP measurement |
| 범위 | 0–100kPa (configurable down to 0–1kPa) | Turndown 100:1, 정확성 0.05% Span |
| Static Pressure Rating | 10MPa (1450psi) | AH static pressure grade |
| Overpressure Capability | 1.5 × Max static pressure | Safety overpressure protection |
| 정확성 & 안정 | ||
| 정확도 등급 | 0.05% Span | Includes linearity, hysteresis and repeatability |
| Temperature Effect | ±0.01% URL/°C | Full range temperature compensation |
| Long-term Stability | ±0.1% URL / 5 연령 | High stability design |
| Process & Ambient | ||
| Process Temperature | -40~121°C | Depends on fill fluid type |
| 주변 온도 | -40~85°C | Standard operating range |
| 유입 방지 | IP67 / NEMA 4X | 방진 및 방수, 열악한 환경에 적합 |
| Explosion-proof Certification | Optional ATEX / IECEx | Confirm by exact model |
| 전기적 특성 | ||
| 공급 전압 | 12.2~35VDC | HART protocol requirement |
| 출력 신호 | 4-20엄마 + HART 5.0/7.0 | Digital communication superimposed on analog signal |
| Load Resistance | 0~1000Ω | 표준 구성 |
| 응답 시간 | 0.1~60초 | Configurable via HART |
| Mechanical Structure | ||
| Process Connection | 1/4″ NPTF internal thread (dual side) | 표준 구성 |
| Diaphragm Material | 316L Stainless Steel | Corrosion resistant for most industrial media |
| Process Head Material | 316 Stainless Steel | Matched with diaphragm material |
| Bolt Material | Carbon Steel (Galvanized) | 기준; 316SS optional |
| 하우징 재질 | Low-copper aluminum alloy with polyester powder coating | Lightweight and corrosion resistant |
- 액세서리 목록 (기준 + 선택 과목)
표준 구성
- Transmitter Main Unit: Including sensor module, electronic module and housing
- Process Connection Gasket: Glass-filled PTFE (기준)
- Mounting Bracket: Standard bracket for pipe or wall mounting
- 터미널 블록: Built-in terminal, supports 2-wire connection
- Operation Manual: 설치, commissioning and maintenance guidelines
- Calibration Certificate: Factory calibration record with traceable accuracy
Common Optional Accessories
| Accessory Type | 모델 / 설명 | 애플리케이션 |
| 통신 모듈 | HART / DE Protocol Module | Digital communication expansion |
| Display Module | Remote Display Unit | 고온 / hazardous area installation |
| Mounting Fittings | Flange adapter, pipe bracket | Special mounting requirements |
| Process Fittings | Reducer adapter, sealing parts | Different interface conversion |
| 보호 장치 | Rain cover, Explosion-proof junction box | Harsh environment protection |
| Calibration Tool | HART Handheld Communicator, Calibration Software | On-site calibration and configuration |
- Competitor Replacement / Cross-brand Comparison
| 상표 | 모델 | Core Parameter Comparison | Replaceability |
| Honeywell | STD720-E1AC4AS-1-A-AHB-11S-A-00A0 | 100kPa, 0.05% 정확성, 10MPa static pressure, HART, 316L 다이어프램 | Original same-series replacement |
| Rosemount(Emerson) | 3051CD0A02A1AB1H2L4M5 | 100kPa, 0.075% 정확성, 10.3MPa static pressure, HART, 316L 다이어프램 | 높은 (confirm mounting dimension) |
| Yokogawa | EJA110A-DLS4A-92DA | 100kPa, 0.075% 정확성, 10MPa static pressure, HART, 316L 다이어프램 | 높은 (protocol compatible) |
| 지멘스 | SITRANS P DS III | 100kPa, 0.075% 정확성, 10MPa static pressure, HART, 316L 다이어프램 | 중간 (confirm turndown ratio) |
| 씨줄 | 266DSH | 100kPa, 0.065% 정확성, 10MPa static pressure, HART, 316L 다이어프램 | 중간 (mounting structure difference) |
Replacement Key Points:
- Match measuring range, accuracy grade and static pressure resistance
- Keep identical process connection type (NPTF / 플랜지)
- Ensure compatibility of communication protocol (HART version)
- Mounting dimension and weight shall meet site requirements
- 선택 지침 & 대체 솔루션
Core Selection Factors
- 측정 범위: Confirm actual differential pressure; STD720 turndown 100:1 covers 0–1kPa ~ 0–100kPa
- Static Pressure Condition: System static pressure ≤10MPa (AH grade); higher pressure requires BH grade (20MPa)
- Media Property: Corrosive media requires Hastelloy C-276 or Monel diaphragm
- 온도 범위: Above 121°C select high-temperature silicone oil (DC®704) or fluorinated fill fluid
- 안전인증: Explosion hazardous area select matched ATEX/IECEx certified model
- Communication Requirement: Choose HART/DE for remote configuration and diagnosis
Recommended Alternative Models
| 응용 시나리오 | 추천 모델 | 이점 |
| Standard Industrial DP Measurement | STD720-E1AC4AS-1-A-AHB-11S-A-00A0 | 비용 효율적, fits most working conditions |
| Corrosive Media | STD720-E2HC4AS-1-A-AHB-11S-A-00A0 | Hastelloy C-276 diaphragm, resistant to strong acid & alkali |
| High Temperature (>121掳C) | STD720-E1AC4AS-3-A-AHB-11S-A-00A0 | DC庐704 high-temp silicone oil, range -40~204C |
| High Static Pressure (>10MPa) | STD720-E1AC4AS-1-B-BHB-11S-A-00A0 | BH grade, withstand 20MPa system pressure |
| Wireless Communication | STD720-E1AC4AS-1-A-AHB-16S-A-00A0 | WirelessHART protocol, reduce wiring cost |
설치 & 유지 관리 권장 사항
- 장착 위치: Avoid severe vibration and sharp temperature change; horizontal installation recommended
- Process Connection: Ensure good sealing to avoid leakage affecting measurement accuracy
- Wiring Requirement: Use shielded cable with single-end grounding to reduce EMI interference
- 교정주기: Annual calibration recommended; 단축하다 6 months under harsh conditions
- Fault Diagnosis: 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. 선택 중, focus on measuring range, static pressure, media characteristics and safety certification to match site operating conditions.
적용산업 & 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
- 석유화학 / Coal Chemical
Tank liquid level, distillation column differential pressure, orifice/Venturi DP flow, process pipeline differential pressure, filter blockage monitoring.
- 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.
- 수처리 & 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.
- 야금 & 강철 / Non-ferrous Metal
Blast furnace duct negative pressure, dust removal pipeline DP, circulating cooling water flow, silo/tank level DP measurement.
- 제약 / Bioengineering
Purified water flow, fermenter liquid level, precision filter inlet-outlet DP; 316L material fits sanitary process conditions.
- 공조 & 빌딩 자동화
Industrial plant & commercial complex; air conditioning supply/return water differential pressure, duct wind pressure, unit filter blockage DP alarm.
- Cement Building Materials / Glass & Ceramics
Kiln wind pressure DP, dust bag differential pressure, silo DP level measurement, cooling water system monitoring.
- 음식 & 음료 / 펄프 & 종이
Brewing, 음료, paper industry; slurry level, process water circulation DP, pipeline DP flow measurement.
- City Gas / Energy Regulating Station
Gas pipeline DP flow, regulator inlet-outlet differential pressure, pipe network pressure monitoring.
- 채광 & 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.
