접촉기,회로 차단기,감지기,인코더,PLC,변환기
하니웰 Searchpoint Optima Plus (2108N4000H) 잘못 & Warning Troubleshooting Table
Reading methods: 수사슴 475/375 Communicator, SHC1 Handheld Interrogator, EDD Device Description File; W=Warning, F=Fault. Under fault condition, output defaults to 0mA (this HART version can be set to 1mA). Some faults are latched and require manual clearing or power cycle reset.
| Error Code | 상태 | English Name | 오류 설명 | On-site Troubleshooting Steps | Latched |
| 0 | 여 / 에프 | Temperature Limit Exceeded | Operating temperature near or out of -40~+65℃ range | 1. Measure ambient temperature of the detector | 아니요 |
| 2. Check direct sunlight or overheating from heat tracing | |||||
| 3. 환기 개선 & shading; relocate if over-temperature | |||||
| 4 | 여 / 에프 | Bad 24V Supply | Supply voltage outside 18～32VDC operating range | 1. Measure terminal voltage under load (not no-load power supply) | 아니요 |
| 2. 케이블 전압 강하를 확인하십시오., short circuit and wire gauge | |||||
| 3. Verify power capacity and restart the loop | |||||
| 5 | 여 / 에프 | Bad 4-20mA Loop | Analogue output deviation >0.5엄마, cannot output correct signal | 1. Check polarity, shielding grounding and loop resistance | ✅ Latched |
| 2. Avoid hot-plugging multimeter probes | |||||
| 3. Power cycle; if fault remains, output circuit is damaged | |||||
| 6 | 여 / 에프 | Negative Gas Reading | Negative zero drift of gas reading | 1. Confirm clean atmosphere with no hydrocarbon gas | 아니요 |
| 2. Remove dust filter and clean optical window | |||||
| 3. Perform zero calibration; eliminate condensation and solvent interference | |||||
| 8 | 여 / 에프 | Obscured Optics (Optical Contamination) | 렌즈 & gas chamber blocked by oil, dust or water vapour, optical path attenuation | 1. Remove weather shield and dust barrier | 아니요 (frequent warning) |
| 2. Wipe optical window with lens paper and anhydrous ethanol | |||||
| 3. Dry and reset; check heating function if heavy condensation | |||||
| 11 | 여 / 에프 | Low Lamp Output | Infrared lamp power degraded, end-of-life aging | 1. Clean optics first to rule out contamination | 아니요 |
| 2. If alarm persists after reset: replace optical module due to lamp failure | |||||
| 13 | 에프 | Hardware Fault | Self-test failure of main board and drive circuit | 1. 다음 시간 동안 전원 끄기 5 minutes then re-power | ✅ Latched |
| 2. 전원 공급 안정화 | |||||
| 3. Recurring fault: return for repair or replace transmitter | |||||
| 16 | 에프 | Poor Signal Quality | Noisy, unstable infrared signal with low SNR | 1. Clean optical window and filter first | ✅ Latched |
| 2. Check water ingress or frost inside gas chamber | |||||
| 3. Replace optical assembly if lamp aging or optical offset occurs | |||||
| 22 | 여 / 에프 | Internal Firmware Failure | Firmware checksum error, memory exception | 1. Full power cycle restart | ✅ Latched |
| 2. Clear fault log via HART tool | |||||
| 3. Persistent error: re-flash firmware or replace main board |
📌 Common General Faults (No independent Error ID in HART)
- HART Communication Failure
확인하다: 250Ω HART resistor must be installed on the loop; correct polarity; single-end shield grounding; no excessive non-HART devices on the bus; matching baud rate.
- Slow reading drift with no error code
확인하다: overdue calibration; clogged dust filter; continuous low-level hydrocarbon interference; heavy oil adsorption inside gas cell.
- No current output & no communication after power-on
확인하다: 물 유입 & terminal corrosion in M25 junction box; burnt circuit due to reverse polarity; 끊어진 내부 퓨즈.
🛠️ Operation Guidelines (for 2108N4000H)
- Clear Latched Faults: HART menu →【Fault/Warning】→Clear; or power off ≥30 seconds then restart. Hardware faults will reoccur immediately after reset; do not mask them permanently.
- Calibration Precondition: Clear all optical path & lamp warnings before zero/span calibration; calibration will drift severely with active optics contamination warning.
- Spare Parts Division: 오류 8,11,16 = optical module (램프 + detector + lens); Error5,13,22 = main board failure. Board-level repair is not recommended; replace the whole transmitter directly.
- SIL2 Reminder: F-class faults trigger SIL safety loop action. Do not run the detector with fault masked for long; rectify promptly.
(Searchpoint Optima Plus)
제품 위치: Point-type NDIR hydrocarbon combustible gas detector, HART protocol version
Manufactured by Honeywell Analytics UK. NDIR infrared principle, immune to catalytic bead poisoning. Ideal for offshore platforms, refineries, LNG and other harsh environments; SIL2 안전 무결성 수준.
✅ Model Coding Definition
2108: Searchpoint Optima Plus series
N: Hydrocarbon HC version (메탄, propane, gasoline etc., 당신의 모델)
4: Standard diffusion type with weather shield
000: Without remote gas cell & sampling path
시간: 수사슴 7 protocol superimposed on 4-20mA signal (suffix N = pure 4-20mA without HART, 예를 들어. 2108N4100N)
실: M25 (distinguished from 41xx series with 3/4″NPT 스레드)
표준 구성: 316L electropolished stainless steel housing, dust filter, nylon weatherproof cover, sunshade against rain splash.
📌 Key Technical Specifications
| 목 | 매개변수 |
| 탐지 원리 | Non-Dispersive Infrared (NDIR) |
| 측정 범위 | 0～100%LEL; configurable for hundreds of hydrocarbons & solvents (메탄, propane, ethylene, gasoline, aromatics) |
| 전원공급장치 | DC18～32V, nominal 24VDC; max power consumption ＜4.5W |
| 신호 출력 | 4-20엄마 + 하트7; Modbus RS485 multi-drop bus available with optional DX100(중) 기준 치수 |
| Current Levels (Fault/Inhibit/Alarm) | 잘못: 0엄마 (HART version configurable to 1mA); Inhibit: default 2mA; 경고: default 3mA; Over-range: 20~21.5mA (default 21mA) |
| 응답 시간 (Methane) | T50＜3s, T90＜4s |
| 작동 온도 | -40℃ ~ +65℃ |
| 유입 방지 | IP66 / IP67 |
| 하우징 재질 | 316 스테인레스 스틸 (CF8M); 총 무게 약. 1.6kg |
| 안전 인증 | ATEX, IECEx, FM, CSA; SIL2 (IEC61508) |
| 정확성 | Baseline drift ＜±1%FSD (HC); ＜±2%FSD (ethylene) |
| Pressure Effect | 0.1% reading per mbar |
✨ Infrared vs Catalytic Bead Advantages
- Resistant to catalytic poisons (silicone, lead, H₂S), longer service life and extended maintenance interval
- Fail-safe optical self-test; no silent failure risk
- Works normally in inert atmosphere (catalytic sensors require oxygen)
- Built-in temperature control heating; anti-condensation optical window; pre-warning for lens contamination
- Onboard event log; support HART communicator for commissioning, calibration and diagnostics
🧾 Typical Application Scenarios
Offshore oil & gas platforms, FPSO, oil tankers, refineries, LNG/LPG filling stations, gas regulator stations, gas turbine power plants, solvent coating & printing workshops, tank farms.
📎 Cross-model Reference (for replacement & selection)
2108N4000H: M25 thread, 수사슴, diffusion type with weather shield (your unit)
2108N4100N: 3/4″NPT, pure 4-20mA, 하트 없음
2108N4100H: 3/4″NPT, HART version
2108N5100H: Flow-through sampling type with HART, for pipeline sampling systems
⚠️ 중요 사항
- Infrared detector only responds to hydrocarbons; cannot detect non-hydrocarbon flammable gases such as H₂, 콜로라도, NH₃.
- Calibration gas must match target gas; response factor varies for different hydrocarbons.
- Cannot directly replace catalytic bead sensors without rechecking host logic and alarm thresholds.
- 소모품 예비 부품: optical module, dust filter and weather shield are regular wear items.
Honeywell Searchpoint Optima Plus (2108 시리즈) 전체 모델 목록
- 모델 코딩 규칙
2108N: Standard Hydrocarbon (HC) 버전 (메탄, propane, gasoline etc.)
2108비: Ethylene & solvent dedicated version (ethylene, aromatics, esters)
4번째 자리: 4 = Diffusion type; 5 = Flow-through sampling type (with gas cell)
Thread code: 0 = M25; 1 = 3/4″NPT
접미사: N = 4-20mA only; H = 4-20mA + HART7 protocol
접미사 10 = with Remote Gas Cell (RGC); 00 = without remote gas cell
- 2108N Hydrocarbon Standard Models (Main Series, including 2108N4000H)
2.1 M25 thread (0) | Diffusion (4) | No RGC (00)
- 2108N4000N: 4-20엄마, M25, diffusion, weather shield
- 2108N4000H: 4-20mA+HART, M25, diffusion (당신의 모델)
- 2108N4001N: Ethylene calibrated, M25, diffusion, 4-20엄마
- 2108N4001H: Ethylene calibrated, M25, diffusion, 수사슴
- 2108N4010N: HC + RGC remote test cell, M25, diffusion
- 2108N4010H: HC + RGC, M25, diffusion, 수사슴
2.2 3/4″NPT 스레드 (1) | Diffusion (4) | No RGC (00)
- 2108N4100N: 4-20엄마, NPT, diffusion
- 2108N4100H: 4-20mA+HART, NPT, diffusion
- 2108N4110N: With RGC, NPT, diffusion
- 2108N4110H: With RGC, NPT, diffusion + 수사슴
2.3 Flow-through sampling type (5) for sampling pipeline & pre-treatment systems
M25 thread (0)
- 2108N5000N: Flow gas cell, M25, 4-20엄마
- 2108N5000H: Flow gas cell, M25, 수사슴
- 2108N5010N: Flow type + RGC, M25
- 2108N5010H: Flow type + RGC, M25 + 수사슴
3/4″NPT 스레드 (1)
- 2108N5100N: Flow gas cell, NPT, 4-20엄마
- 2108N5100H: Flow gas cell, NPT, 수사슴
- 2108N5110N: Flow type + RGC, NPT, high concentration range (0~100%vol CH₄)
- 2108N5110H: Flow type + RGC, NPT + 수사슴
2.4 Special XTC Marine & Multi-certified Models (44/46/48 시리즈)
- 2108N4400N / 시간: Diffusion, marine certification, M25
- 2108N4600N / 시간: Diffusion, UL/FM certified, M25
- 2108N4601N / 시간: Ethylene calibrated, 46-type diffusion
- 2108N4800N / 시간: Optima Plus XTC version, M25 diffusion
- 2108N5400/5600/5800 N/H: Corresponding flow-through versions (44/46/48 sampling models)
- 2108B Ethylene & Solvent Dedicated Models (for Optima X/Z sampling systems)
Diffusion type (4)
- 2108B4001N / 시간: Ethylene calibrated, M25 diffusion
- 2108B4101N / 시간: Ethylene calibrated, NPT diffusion
Flow-through sampling type (5, only for sampling systems)
- 2108B5001N / 시간: Ethylene flow cell, M25
- 2108B5101N / 시간: Ethylene flow cell, NPT
- 2108B2001N / 시간: Optima X fast-response sampling model (special gas cell)
- 2108B2051N: DNV marine certified version
- Full Series Spare Part Order Codes
- Optical Module: 2108D3001 (Methane), 2108D3034 (Ethylene)
- Remote Gas Cell (RGC): 2108B0240
- Flow-through Gas Cell Assembly: 2108B0282
- Dust Filter + Weather Shield: 2108B2337
- 단말기 & Junction Box: 2108B2360
- Quick Selection Table (for replacement)
| 장착 유형 | 실 | Without RGC (기준) | With RGC (Remote Test) |
| Wall-mounted Diffusion | M25 | 2108N4000N / 시간 | 2108N4010N / 시간 |
| Wall-mounted Diffusion | 3/4″NPT | 2108N4100N / 시간 | 2108N4110N / 시간 |
| Pipeline Sampling | M25 | 2108N5000N / 시간 | 2108N5010N / 시간 |
| Pipeline Sampling | 3/4″NPT | 2108N5100N / 시간 | 2108N5110N / 시간 |
- 보충 설명
- N = 4-20mA analogue only; H = HART enabled. Do not mix loop types; 250Ω resistor is mandatory for HART loops.
- 2108N only detects hydrocarbons; 2108B is dedicated for ethylene, esters and alcohols. Neither can detect H₂, CO or NH₃.
- All models meet SIL2, ATEX/IECEx/FM certification; IP67 ingress protection.
