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RKI Instruments

IRF-4345

Fixed Gas Detection System · Gas Detection

Class-certified type (DNV register) · technical data sheet not yet verified​⁠​‌‌⁠⁠​‌‍‌‌‍‌​⁠​‌‍‍
Specifications

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Detection targetIsobutane
Sensor modelIRF-4345
Explosion-proof specificationsJapan Ex and ATEX/IECEx
Resolution0.5 %LEL/0.1 vol%
First alarm10.0 %LEL
Second alarm50.0 %LEL
Continuous use operating temperature range-20 °C to +50 °C
Temporary use operating temperature range-40 °C to +60 °C
Continuous use operating humidity range10 to 90 %RH
Temporary use operating humidity range95 %RH or less
Indication accuracyWithin ±5 %LEL
Response time (T90)Within 30 seconds
Manufacturer documentation

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“CAUTION  Allow the product to warm up for at least 10 minutes before performing fresh air adjustment or span adjustment.  Ensure identical temperatures, humidity, and pressure in the gas adjustment…”

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