The Danfoss Photocell Type LD Black are used to detect the flame in yellow flame oil burners. They are designed for use with Danfoss units of the OBC 80 and BHO 70 series.
LD/LDS sensors meet the requirements of the EN 298:2012 standard, as well as those of the RoHS and WEEE Directives.
FUNCTION OF DANFOSS LDS PHOTOCELL
The LD/LDS sensors are based on the photo transistor principle in connection with an amplifier and convert light from the flame into a current. The flame’s characteristics and the location of the sensor influence the size of the photo current created in LD/LDS. For this reason, LD/LDS is available in two sensitivity levels.
If a strong enough signal is not produced with the selected sensor, select a sensor with a higher sensitivity level. If the flame cannot be detected at the highest level of sensitivity, use the Danfoss UV sensor.
To determine the signal’s quality, use the gauge set-up below:
For no flame/darkness, the value must be ≤ 5 μA
For flame/light the value must be ≥65 μA
INSTALLATION OF DANFOSS LDS PHOTOCELL
The LD/LDS sensors can be installed using a flange and clamping ring; alternatively, use a rubber sleeve (delivered mounted on LD/LDS).
The sensors are available in two standard lengths, with a longer piece featuring built-in extension tubes.