10
D. JUMPER SELECTIONS
The ABC controller can be operated in either timed or continuous mode, the
ABC controller has jumpers for selection of the operating mode and the time
intervals (Fig. 10).
CONTINUOUS MODE
For Continuous Mode operation, a jumper should be installed in position JP7.
JP6 should be empty.
NOTE: The minimum blow down interval in Continuous Sample Mode is eight
seconds to allow for full movement of a ball valve.
TIMED SAMPLE MODE
For Timed Mode operation, a jumper should be installed in JP6. JP7 should be empty.
The sample intervals available are 24 hours, 8 hours, 2 hours, and 30 minutes.
A jumper in JP8 selects 24 hours, JP9 selects 8 hours, JP10 selects 2 hours, and
JP11 selects 30 minutes. Jumper only one of the positions JP8 through JP11.
In the Timed Mode, there is a choice of 30 sec., 1, 2, or 4 minute blow down
intervals. A jumper in JP15 selects 30 seconds, JP14 selects 1 minute, JP13
selects 2 minutes, and JP12 selects 4 minutes. Jumper only one of the positions
JP12 through JP15.
NOTE: In the timed mode, the blow down interval will be at least the time
selected. If conductivity is still above the selected trip point (after selected
interval time has expired), blow down will continue until conductivity drops
below the selected trip point.
Fig. 10,
Jumper connection
locations.
Jumper connection
JP6 through JP15
Jumper connection
JP1, 2, 3, 17, and 18
High Voltage connections
