Rola-Chem RC554XXP Dual ORP/pH Digital Controller - Manual (Page 11)

Rola-Chem Digital Controller PN 554326 02/17/2014 Page: 11 of 20
4.3 Power access panel
9. ORP FUSE
DATA pH
FUSE FUSE
ORP1
10. TERMINAL STRIP
11. pH FUSE
12. DATA PORT
13. FLOW SWITCH TERMINAL
14. AUDIBLE ALERT TREMINAL
15. DIP SWITCH ARRAY
16. DATA PORT & FLOW SWITCH INPUT
17. pH OUTPUT
18. ORP1 OUTPUT
20. EXTERNAL POWER INPUT
O
N
R
S
1
2
3
4
FUSE
ORP2
FLOW
19. ORP2 OUTPUT
20 19 18 17 16
12 15 11 9 21 13
4.3.1 Dip switches
The controller has a series of dip switches to control functions that are not normally
accessible on the front panel. These dip switches are located inside the Power panel. To
access switches, remove power from the controller and remove power access panel. There
are four dip switches- #1 is the top switch. The switch is ‘off’ when in the left position and ‘on’
in the right position. See appendix for settings.
4.3.2 Fuses
The ORP and pH are independently fused to protect the controller from defective feeders.
These fuses are located inside the lower panel. The fuse holders are shipped with 3.15 Amp
fuses. (Replacement fuses are 5mm x 20mm Fast Acting IEC.)
4.3.3 Flow Switch
The controller has a flow switch terminal located inside the lower panel on the left side. It is
shipped with a ‘jumper’ in place. The terminal must either have the jumper or a flow switch
installed. The flow switch light on the face of the controller is also a power light that shows
that the controller is connected to a live power source. If the terminal does not have a closed
circuit, the controller will not turn on.