ABB AX466/10001 Single and dual input analyzers for pH/Redox
1.1 System Description
The AX460 single input and AX466 dual input pH/Redox (ORP) analyzers and associated electrode systems have been designed for continuous monitoring and control of pH and Redox (ORP). The electrode system can be standardized to the analyzer using the built-in calibration facility and a single point buffering facility provides easy re-calibration after initial standardization.
The analyzer is available in wall-/pipe-mount or panel-mount versions with either one or two programmable, pH or Redox (ORP) input channels, each with its own associated temperature input channel. When making temperature compensated measurements, the sample temperature is sensed by a resistance thermometer (Pt100, Pt1000 or Balco 3K) mounted in the electrode system.
ABB AX466/10001 Single and dual input analyzers for pH/Redox
The analyzer can be configured for, and connected to, either a standard pH input (single, high impedance input >1013 W) or differential pH input (dual, high impedance inputs, both >1013 W).Differential pH input is designed for use with pH electrode systems that incorporate a solution earth (ground) rod. The measuring electrode and reference electrode signals are measured separately using two, high impedance amplifiers and
compared with the solution earth (ground) potential. The difference between the results is the value used for the pH measurement.
ABB AX466/10001 Single and dual input analyzers for pH/Redox
All models incorporate a wash facility for system cleaning; the Alarm 3 relay can be configured to control the wash system either automatically or manually. The relay can be programmed to deliver either a continuous or pulsed signal to control an external power supply to a solenoid or pump and the frequency,duration and recovery time for the wash cycle are also programmable. During a wash cycle, the analog output value is
held in its pre-cycle condition.Analyzer operation and programming are performed using five tactile membrane keys on the front panel. Programmed
functions are protected from unauthorized alteration by a four-digit security code.
ABB AX466/10001 Single and dual input analyzers for pH/Redox
1.2 PID Control
The AX460 single input pH analyzer incorporates Proportional Integral Derivative (PID) control as standard. Refer to the PID Control Supplementary User Guide, IM/AX4PID for a full description and instructions on how to configure and operate PID control.
1.3 AX400 Series Analyzer Options
Table 1.1 shows the range of configurations that are possible for the AX400 Series analyzers. The analyzer detects the type of input board fitted for each input automatically and displays only operating and programming frames applicable to that input board type. If no input board is fitted for a second input (Sensor B), Sensor B frames are not displayed.
ABB AX466/10001 Single and dual input analyzers for pH/Redox
ABB AX466/10001 Single and dual input analyzers for pH/Redox
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