MSA Senscient ELDS 1000 series, Руководство по эксплуатации

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Specifications
Senscient ELDS™
Rev 15 133
GB
Gas Open Path Ranges Available Path Lengths
Cross Duct XD
Methane (CH
4
) 0-10% / 0-10% LFL
0-25% / 0-25% LFL
0-100% / 0-100% LFL
0.5 – 5m
Cross Duct XC
Methane (CH
4
) 0-25% / 0-25% LFL
0-100% / 0-100% LFL
0.5 – 5m
Ventilation Zone
Methane (CH
4
) 0-10% / 0-10% LFL
0-25% / 0-25% LFL
0-100% / 0-100% LFL 0.5 – 5m
Typical Performance - Open Path
Parameter Value
Response Time T90 ≤ 3 seconds (Typically)
T90 ≤ 5 seconds (H
2
S)
Repeatability ≤ ±5%FSD
Linearity ≤ ±5%FSD
Typical Performance – Cross Duct XD Units & Ventilation Zone VZ Units
Parameter Value
Response Time T
90
≤ 1 second
Repeatability ≤ ±5% FSD
Linearity ≤ ±5% FSD
Parameter Value
Typical Performance – Cross Duct XC Units
Parameter Value
Response Time T
90
≤ 0.25 seconds
Repeatability ≤ ±5% FSD
Linearity ≤ ±5% FSD
Service Availability
The percentage of time that a unit will be available and operating (ignoring forced interruptions
such as blocked beam or power supply outages etc.), should be 99% or greater. In order to
achieve high service availability, ELDS™ OPGDs should be installed, operated and maintained in
accordance with the recommendations of this Technical Manual.