
Instruction Manual alpha-pH 1000
34
12 APPENDICES
12.1 Appendix 1
Before opening the unit, ENSURE that the power cable is physically separated from the power supply.
Jumper Positions - Internal to the controller
JP 1 Selects the input voltage 220 VAC.
JP 2 Selects the input voltage 110 VAC.
JP 3 Selects between Pt100 and Pt1000.
Fuse Note that there is a fuse (slow-blow 100mA) internal to the controller.
Replace fuse with the recommended type only.
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