ABB AX400 Series User Manual

Single and dual input analyzers for pH/Redox (ORP)
AX416, AX436, AX460, AX466 & AX468 4Setup
20 IM/AX4PH Rev. P
Set Buffer 1
Set the pH value of the buffer 1 solution – see Appendix A for pH tables.
Set Buffer 2
Set the pH value of the buffer 2 solution.
Note. The solution selected for buffer 2 must be at least 2 ph greater than that
selected for buffer 1, e.g. if buffer 1 is set to 7 pH, buffer 2 must be set to at least 9 pH.
Set Buffer 1
-----
Set Buffer 2
9.18pH
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Set Auto Buffers
4.O1pH

ABB AX400 Series Specifications

General

Display	LCD with backlight
Output	4 to 20 mA, HART
Process connection	Flanged
Lining material	PTFE, PFA
Electrode material	Stainless steel, titanium
Communication	HART