Honeywell Searchpoint Optima Plus 2108B2043N – Legacy, Ethylene, CU-TR Ex, 4–20 mA
2108B2043N is a legacy Honeywell Searchpoint Optima Plus point IR detector (Ethylene), CU-TR Ex, 4–20 mA, 316SS. New projects should order a current 2108N SKU; keep this page for installed-base replacements.
Siblings: HART —, gas —, style —, approval —.
Part-number decode
| Segment | Meaning | This SKU |
|---|---|---|
| Family | Honeywell Searchpoint Optima Plus point IR | Optima Plus |
| P/N | Optima Plus Point IR Gas Detector,Ethylene,4-20mA,CU-TR Ex (legacy P/N),316SS | 2108B2043N |
| Class | Transmitter Legacy | Legacy |
Technical specifications
| Category | Transmitter Legacy / Legacy |
|---|---|
| Description | Optima Plus Point IR Gas Detector,Ethylene,4-20mA,CU-TR Ex (legacy P/N),316SS |
| Gas | Ethylene |
| Output | 4–20 mA |
| Approvals | CU-TR Ex |
| Entries | — |
| Enclosure | 316 不锈钢 |
| RGC | no |
| Principle | Point IR (dual source, dual beam) |
| Range | 0–100 %LEL (gas curve) |
| Ingress | IP66/IP67（探测器） |
Why this part number
Legacy 2108B2043N shares the Optima Plus optics with the 2108N range, but approval kits and accessory packs changed. Do not write 2108B2043N into a new PID; read the nameplate before swapping the whole head versus a window/lamp kit.
Spares and mates
2108B2043N is Searchpoint Optima Plus Legacy. The detector is 316SS point IR with the factory window or flow-housing kit. Matrix: product-2698. Do not substitute Sensepoint XCD cartridges or XNX personalities.
Typical applications
2108B2043N shows up on offshore, FPSO pump-room and refinery compressor spare lists. Hydrocarbon SKUs are not ethylene curves.
Selection contrast
| P/N | Type | Gas | Cert | Output |
|---|---|---|---|---|
| 2108B2003N | Legacy | Ethylene | ATEX | 4–20 mA |
| 2108B2003H | Legacy | Ethylene | ATEX | HART+4–20 mA |
| 2108B2103N | Legacy | Ethylene | UL | 4–20 mA |
| 2108B2103H | Legacy | Ethylene | UL | HART+4–20 mA |
| 2108B2043H | Legacy | Ethylene | CU-TR | HART+4–20 mA |
| 2108B2053N | Legacy | Ethylene | MED | 4–20 mA |
| 2108B2053H | Legacy | Ethylene | MED | HART+4–20 mA |
Installation and service
Mount 2108B2043N on a rigid 316 stand sized for the nameplate mass. Entries are — — do not retap. Land 4–20 mA on the fire-and-gas matrix; HART does not replace the trip pair. Keep the weather/deluge kit oriented so water cannot pond on the window. Gas with the Ethylene curve only.
FAQ
- Housing/approval?
- Match Ex and material requirements to the P/N.
- Does 2108B2043N include HART?
- 4–20 mA only; HART sibling is —. HART does not replace the trip pair.
- Typical output?
- Often 4–20 mA — confirm by ordered configuration.
- Documents?
- Spec/manual links on the SKU pages.
- Can I recertify 2108B2043N from hydrocarbon to ethylene in the field?
- No. This SKU is the Ethylene curve. Order sibling — instead of swapping filters.
Documents
Optima Plus datasheet 1 · Datasheet 2 · On-site part-number matrix
Availability and enquiry
Availability: Not in stock — orders accepted; lead time approx. 12 weeks. Quote full P/N 2108B2043N, gas/range and approval.