ABB AX400 Series User Manual

Single and dual input analyzers for pH/Redox (ORP)
AX416, AX436, AX460, AX466 & AX468 5 Programming
IM/AX4PH Rev. P 39
Zero Value
pH (or mV or Deg.C or Deg.F or A-B) and Adjust are shown alternately on the center
display line. Use the and keys to adjust the displayed reading to the required
zero value:
Note. The zero value setting plus the minimum differential determines the minimum
and maximum values for the span setting, e.g. to set a span value of –1100 mV, first
set the zero value to –1200 mV.
pH
ORP/Redox
Temperature
A-B
–
–
–
–
–2.00 to 14.00 pH (minimum differential, 2.00 pH)
–1200 to 1100 mV (minimum differential, 100 mV)
Deg. C –10.0 to 140.0 (minimum differential, 10 ºC)
Deg. F 14.0 to 284.0 (minimum differential, 18 ºF)
–2.00 to 12.00 pH (minimum differential, 2.00 pH)
Note.
A-B is applicable only to dual input analyzers.
Default Output
Select the system reaction to failure:
Hold
On
Off
–
–
–
Hold the analog output at the value prior to the failure.
Stop on failure. This drives the analog output to the level set in
the Default Val frame below.
Ignore failure and continue operation.
Default Value
The level to which the analog output is driven if a failure occurs.
Set the value between 0.00 and 22.00 mA
Output 2 configuration (and Outputs 3 and 4 if option board fitted and analog features
enabled – see Section 7.3, page 57) is identical to Output 1 configuration.
Option board fitted and analog features enabled (see Section 7.3, page 57) – see
Section 5.7, page 40.
Option board fitted and Serial Communications feature enabled (see Section 7.3,
page 57) – see Supplementary Manual Profibus® Datalink Description (IM/AX4/PBS).
Single input analyzer and option board not fitted – see PID Control Supplement
(IM/AX4PID).
Dual input analyzer and option board not fitted – see Section 5.8, page 41.
AO1: Zero Value
7.00
pH
0.0
pH
AO1: Default
-----
mA
Hold
On
Off
AO1: Default Val
12.00
mA
Config. Output 2
Config. Output 1
Config. Output 1
On
Off
or
Hold
CONFIG. SERIAL
CONFIG. CLOCK
CONFIG. SECURITY
CONFIG. CONTROL

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