The D•TEX 3F+ catalytic Explosive Gas detector is intended to monitor gas concentrations in boiler rooms. It is designed to work in conjunction with a compatible control unit (U•H1 or U•H6) to react before the concentration of explosive gas reaches the Lower Explosive Limit (LEL). The list of the most important detectable gases is hydrogen H₂, methane CH₄, propane C₃H₈ and butane C₄H₁₀.
The D•TEX 3F+ is a catalytic Explosive Gas detector designed to detect the presence of explosive gas in ambient air at concentrations of up to 100% of the Lower Explosive Limit.
In an explosive gas detection system, alarm thresholds should be set in relation to the LEL of each gas to be detected. Alarm thresholds are typically 20% of LEL for the first alarm level (A1) and 40% of LEL for the second level (A2). These thresholds are managed by the control unit.
The D•TEX3F+ consists of a flame-retardant plastic housing unit (UL 94 V-0) that is also dust and water proof (IP65), an Ex-certified cable gland, an explosion-proof encapsulated sensor head and a terminal block mounted on a printed circuit board. The sensor head is designed to facilitate the eventual replacement of the sensor.
The D•TEX3F+ is intended for commercial and light industrial buildings. The operating temperature ranges from 0°C to +50°C. The product is suitable for use in zone 2 (see specifications) where an explosive atmosphere is unlikely to occur during normal operation or only for a short time.
ATEX marking: II 3G Ex nA d IIC T2 G
