Calculated Industries 9430 - Manual (Page 30)

User’s Guide — 29
Production Spacing
Exercise 1
A radio advertiser wants to air 15 evenly
spaced spots between the hours of 6-10
AM. Find the number of minutes
between spots and the times the first
four spots air.
STEPS/KEYSTROKES DISPLAY
1. Clear calculators:
o o 0.
2. Enter end time and subtract start time:
1 0 A
– 6 A = 4:00:00 HR MIN SEC
3. Divide by number of spots:
÷ 1 5 = 0:16:00 HR MIN SEC
4. Enter value into Memory:
s 1
M-1 0:16:00 HR MIN SEC
5. Enter 1st spot at 6 AM:
6 A 6:00:00 AM
6. Add stored value and solve for an air
time:
+ r 1 = 6:16:00 AM
7. Repeat addition twice for the 3rd and
4th spot:
= 6:32:00 AM
= 6:48:00 AM