Description
The FIREYE Type 25SU3-5166/5168 control confirms the presence or absence of a flame to provide reliable ignition and flame failure protection in an industrial or utility combustion application.
The difference between the 25SU3-5166 and the 25SU3-5168 lies in the characteristics of the amplifier sensitivity. The 5166 offers high discrimination (low sensitivity), while the 5168 provides high sensitivity (low discrimination). This control should be used only in conjunction with a Fireye Type 45UV5, 45RM1, 45RM2, 45RM4, 45FS1, or 45UVFS1 flame scanner to provide repetitive self-checking of the flame safeguard system.
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