Thermo Fisher Scientific Alpha pH 100 - Manual (Page 23)

22
JP1 Selects the input voltage between 110
VAC or 220 VAC
JP3 & JP4 Selects for pH or ORP mode. Please
refer to Appendix 2A and 2B for the
diagrams
JP2 OPEN
(DEFAULT)
SHORT
Terminals 5 & 6,
8 & 9
6 & 7,
9 & 10
5 & 6,
8 & 9
6 & 7,
9 & 10
Power On OPEN CLOSE CLOSE OPEN
pH within
setting OPEN CLOSE CLOSE OPEN
pH
exceeding
setting CLOSE OPEN OPEN CLOSE
Fuse Note that there is a fuse internal to the
controller. Before opening the unit,
ENSURE that the power cable is
physically separated from the mains
supply. Replace the fuse with the one
recommended by the manufacturer.