Prosense P-3312PEK n-Butane (C₄H₁₀) Gas and Impact Detector
The Prosense PE-KAYO P-3312PEK is a fixed catalytic gas detector for n-Butane (C₄H₁₀) combined with a three-axis impact sensor. The manufacturer targets fuel filling stations and related installations.
Manufacturer: Prosense.
Manufacturer-marked II 2G Ex db IIC T5 Gb; Zone 1–2; ATEX IMQ 19 ATEX 045 X; IECEx IMQ 18.0009X. Approval applies to certificate-scoped variants only. Check marking on delivered instrument.
Technical Details
| Gas / Model | n-Butane (C₄H₁₀) · P-3312PEK |
|---|---|
| Gas measurement | 0–100% LEL, catalytic |
| Impact measurement | Three-axis accelerometer |
| Signal outputs | 4–20 mA analog; Modbus RS485 described in company datasheet |
| Environment | IP65 enclosure; −40 to +70°C per manufacturer |
Official Primary Source
Prosense PE-KAYO exact model list → · PE-KAYO manufacturer datasheet (English PDF) →
Image provenance: A representative Prosense detector image is now displayed from the manufacturer’s own PE-KAYO product-gallery page. The source filename is generically P-series, and no individual gas code is legible, so treat it as series representative, not exact SKU photograph.
Primary Ex documentation: EU-Type certificate IMQ 19 ATEX 045 X in Prosense manufacturer manual → · P/PE/PEK/PES manufacturer declaration →. Confirm exact approved variant and issue status.
Archived and current model-name crosswalk
Prosense’s 2020 PE-KAYO specification table explicitly identifies the n-butane model code P-3312PEK; the current English PE Kayo catalog lists PE KAYO-3312 for the same gas description. These are source-level naming records, not proof of unrestricted revision or accessory interchangeability. Resolve the delivered order code, gas calibration, label and certificate issue with Prosense before replacement or procurement.
n-Butane versus propane PE-KAYO selection
The historical P-3312PEK corresponds to Prosense’s n-butane catalytic gas/impact variant, not the separately listed propane P-3412PEK. Although both are combustible gases, their calibration conventions, sensor response and anticipated installation conditions must be checked on the exact manufacturer specification and installed calibration certificate. The impact sensor’s mechanical/collision notification is distinct from the combustible-gas LEL measurement; design alarm/fault response for each independently. Before labeling the supplied product suitable for a classified zone, match its actual Ex db nameplate, cable connection and current certificate schedule—not solely the family’s brochure.