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OLCT IR Infrared Transmitter Detector

OLCT IR Infrared Transmitter Detector

Brand: Oldham

Features
  • Resistant to poisons and corrosion
  • SIL2 capability (according to EN 50402/EN61508)
  • MTBF of 28 years (according to INERIS CGR 7448)
  • Non-intrusive calibration
  • Fail-safe technology

Specifications

Brand

Accuracy

  • ± 2 % LEL HC or ± 3 % of the Value
  • ± 3 % LEL CH₄ or ± 5 % of the Value

Approvals & Certifications

  • SIL 2 INERIS 03-ATEX-0141X, 02, EN 50402, EN 61508
  • ATEX 94/9/EC INERIS 03-ATEX-0141X, Ex TD A21 IP66 T135° C, Tamb: -50° to 65° C, EN 61779-1, -4
  • CE
  • EMC EN 50270
  • Ex
  • IECEx INE 07.0005X, Ex TD A21 IP66 T135° C, Tamb: -50° to 65° C

Cable Entry

  • Typical of Cable Inlet: Cable Gland
  • Typical of Cable Inlet: M20

Consumption

  • Average: 2.5 W

Electrical Connectors

  • 3 Active Wires
  • Shielded Cable

Enclosure, Body Material

  • 316L Stainless Steel

Environmental Protection

  • IP66
  • IP67

Humidity

  • 0 to 99 % RH, Non-Condensing

Load Resistance

  • 300 ohms, Max.

Measuring Range

  • 0 to 100 % Lower Explosive Limit (LEL) CH₄, C₃H₈
  • 0 to 100 % of Volume CH₄
  • 0 to 3 % of Volume CO₂

Operating Temperature

  • -25° to 55° C (-13° to 131° F)
  • -50° to 55° C (-58° to 131° F) on CH₄ (P/N WIRCH4 LBT) & Propane (P/N WIRPROLBT)

Output

  • 4-20 mA

Power Supply

  • 15-30 Vdc at Detector Terminal

Resistance

  • Maximum

Response Time

  • T90 < 8 seconds

Sensitivity

  • 1 % LEL

Storage Temperature

  • -50° to 55° C (-58° to 131° F)

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