Bird Technologies 3170A Series - Manual (Page 19)

2. Set the CAL I BRATE/OP ER ATE switch to the cal i brate po si tion (to
the left).
1. Cal i brate/Op er ate Switch
2. For ward Ref er ence Ad just ment Po ten ti om e ter
3. Re flected Ref er ence Ad just ment Po ten ti om e ter
4. For ward Set Point Po ten ti om e ter
5. Re flected Set Point Po ten ti om e ter
6. Con firm Set Point Po ten ti om e ter
7. For ward Mon i tor Ac tive De lay Dip Switch
Adjust Set-points 1. Using the for ward ref er ence po ten ti om e ter ad just the for ward me ter
to in di cate the power level at which the for ward alarm is to be trip -
ped.
2. Ad just the for ward set-point po ten ti om e ter un til the min ia ture LED
to the left of the po ten ti om e ter is just at the tran si tion from off to
on.
+
NOTE: Turn ing the po ten ti om e ter clock wise will raise the set-point and turn the light off.
3. Using the re flected ref er ence po ten ti om e ter and the re flected
set-point po ten ti om e ter, set the re flected trip point in a sim i lar man -
ner. The alarm will trip dur ing this op er a tion un less the RE SET but -
ton is held in.
4. The con firm set-point is ad justed us ing the for ward ref er ence po ten -
ti om e ter and the con firm set-point po ten ti om e ter. If the con firm out -
put is not used, it is not nec es sary to ad just the con firm set-point
po ten ti om e ter.
5. Once the set-points are ad justed, the CAL I BRATE/OP ER ATE
switch can be re turned to the op er ate po si tion (to the right). If us ing
ac tive for ward mon i tor ca pa bil ity then pro ceed to para graph 3-6. If
not, then re place the face plate.
-
3-3
Figure 3-2
Con trols and In di ca tors