ABB AX416/10001 Single and Dual Input pH/Redox Analyzers

ABB AX416/10001 Single and Dual Input pH/Redox Analyzers

Calibration Fail Message or No Response to pH/Redox Changes

The majority of problems are associated with the electrodes andcabling. Replace the electrodes as an initial check – refer to the appropriate instruction manual. It is also important that all parameters have been entered correctly and have not been altered inadvertently – see Section 7, page 56.
If the above checks do not resolve the fault:
1. Check that the analyzer responds to a millivolt input.
Connect a pH simulator, such as Model 2410, to the transmitter input; +ve to glass and –ve to reference – see Section 6.4, page 50 or 6.5. Select the CONFIG. SENSORS page and set the Probe Type to Redox or ORP. Check that the analyzer displays the correct values as set on the simulator.

ABB AX416/10001 Single and Dual Input pH/Redox Analyzers

Failure to respond to the input indicates a fault with the analyzer which must be returned to the Company for repair. Correct response, but with incorrect readings,usually indicates a calibration problem. Recalibrate the analyzer as detailed in Section 7.
2. Use the pH simulator to carry out an impedance check on the analyzer, i.e. glass to reference, glass to earth and reference to earth – refer to simulator manual.If the analyzer fails this test, check for moisture within the transmitter and in particular the terminal compartment. It is vital that all evidence of moisture is removed with the use of a hot air drier.
3. Reconnect the electrode cable and connect the simulator to the electrode end of the cable. Repeat the procedures 1) and 2) above. If the analyzer fails test 2), check for moisture around the connections and check that the insulation on the inner co-axial conductor is clean and that
the graphite layer has been removed.

ABB AX416/10001 Single and Dual Input pH/Redox Analyzers

The AX400 series
AX400 analyzers incorporate the latest technology to provide highly reliable, flexible, feature-packed devices that satisfy a diverse range of process monitoring and control applications.The complete range encompasses solutions for pH/Redox (ORP), conductivity and dissolved oxygen.
AX46x analyzers enable continuous measurements of one or two pH or Redox (ORP) points with simultaneous local display and retransmission. AX46x is used with glass, enamel and antimony pH electrodes and metal Redox sensors, providing measurements with exceptional accuracy and performance.AX400 series analyzers are available for either wall-/pipe- or panel-mounting and are rated to IP65

ABB AX416/10001 Single and Dual Input pH/Redox Analyzers

ABB AX416/10001 Single and Dual Input pH/Redox Analyzers

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