TYPES OF OPERATION FLS300

TIMING RANGE
ADJUSTABLE
Range 1: 0.1 to 2.5 seconds Rx = 356 * (T - to)
Range 2: 0.4 to 10 seconds Rx = 91.20 * (T - to)
Range 3: 3.2 to 80 seconds Rx = 11.38 * (T - to)
Range 4: 25 to 625 seconds Rx = 1.42 * (T - to)
where Rx in kohms T: desired time in seconds,
                 to: time measured with Rx = 0.

Example to determine Rx value for a T time of 10 seconds: Choose range 3; measure time with Rx = 0 (for example : to = 3.1 s); substract to from 10 seconds (10s - 3.1s = 6.9s); calculate Rx = 11.38 kohms/s (range 3) x 6.9s Theoretical resistance: Rx = 78.5 kohms
Date of issue: 6/01 - 72 - Page 3 of 4