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 33
5.4 Configure Diagnostics
Note. The Configure Diagnostics function is applicable only if Diff. Input for Sensor A and/or Sensor B is set to Yes – see Section
5.3, page 30.
Configure Sensor A
Sensor B configuration (dual input analyzers only) is identical to Sensor A
configuration.
pH Glass Check
Set to On to enable the impedance of the glass electrode circuit to be monitored in
order to provide low glass impedance and out-of-sample/broken cable warnings.
Note. This frame is displayed only if A: Probe Type is set to pH and A: Electrode is set
to Glass – see Section 5.3, page 30.
Reference Electrode Check
Set to
On to enable the condition of the reference electrode to be monitored in order to
provide:
– an indication of when sensor cleaning or replacement is required
– out-of-sample/broken cable warnings
Sensor B (dual input analyzers only) configuration is identical to Sensor A
configuration.
See section 5.5, page 34.
Reference Alarm
Set the impedance value above which the reference alarm is activated.
Sensor B (dual input analyzers only) configuration is identical to Sensor A
configuration.
See section 5.5, page 34.
Config. Sensor A
-----
A: pH Glass
-----
A: Ref. Checking
-----
CONFIG. DIAGS
-----
Off
On
Off
On
A: Ref. Alarm
50
kOhm
CONFIG. ALARMS
Config. Sensor A
CONFIG. ALARMS
Config. Sensor B
Config. Sensor B
Config. Sensor B
Config. Sensor A
On
Off

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