Spectrex offers two versions of the new 40\/40 Series UV\/IR Flame Detectors:","Model 40\/40L (& LB) provides a combination of UV and IR sensors, where the IR sensor operates at a wavelength of 2.5-3.0 µm, and can detect hydrocarbon-based fuel and gas fires, hydroxyl and hydrogen fires, as well as metal and inorganic fires.","Model 40\/40L4 (& L4B) is identical to the 40\/40L except that the IR sensor works at a wavelength of 4.5 µm and is only suitable for hydrocarbon-based fires.","The UV\/IR flame detector senses radiant energy in the short wave section of both the ultraviolet and infrared portions of the electromagnetic spectrum. The signals from both sensors are analyzed for frequency, intensity and duration. Simultaneous detection of radiant energy in both the UV and IR sensors triggers an alarm signal.","The UV sensor incorporates a special logic circuit that helps prevent false alarms caused by solar radiation.","Features","Approvals

特性

• 紫外/红外双传感器
• 高速响应-对饱和信号的响应为150毫秒
• 太阳能盲
• 自动和手动机内测试（BIT）-确保持续可靠运行
• 加热窗。用于恶劣天气条件下的操作(雪、冰、冷凝)
• 多个输出选项提供最大的灵活性和兼容性
• 报警、故障和辅助继电器（3）
• 0-20mA（阶梯式）
• 高可靠性- mtbf -最低15万小时
• 5年保修
• 用户可编程通过hart或rs-485
• 用于维护和资产管理的hart协议
• RS-485，Modbus兼容
• 高速响应-对饱和信号的150 msec响应
• 加热型车窗-用于在恶劣天气条件下操作（雪、冰、冷凝水）
• 多个输出选项，最大的灵活性和兼容性
• 报警、故障和辅助继电器(3)
• 高可靠性-平均无故障时间-至少150000小时
• 用于维护和资产管理的HART协议
• rs-485，modbus兼容