ABB AWT210 - Page 22

22
AWT210 | 2-WIRE CONDUCTIVITY, PH/ORP, PION TRANSMITTER | OI/AWT210-EN REV. C
…8 Diagnostic alarms
Diagnostic message ALARM MESSAGE Recovery action pH

conductivity

conductivity
Toroidal
conductivity
HART FF PA
Process

SENSOR IS DIRTY
Clean sensor
   
Electronics

DIAGNOSTIC
INPUT READ ERROR
Check terminals
Check sensor wiring
Check electrode
   
Electronics

LOW ELECTRODE
IMPEDANCE
Check terminals
Check sensor wiring
Check electrode
   
Process

PRIMARY VARIABLE
OUTSIDE PHYS. LIMITS
Check sensor wiring
Check configuration
      
Process

PRIMARY VARIABLE
OUTSIDERANGE LIMITS
Adjust engineering
range
      
Electronics

TEMPERATURE
INPUT READ ERROR
Check sensor
If problem persists
change sensor module
      
Process

SENSOR TEMPERATURE
OUTSIDE LIMITS
Check sensor wiring
Check temperature
configuration
      
Sensor

HIGH SENSOR
EFFICIEN C Y (slo p e)
Check calibration
Clean sensor
Check sensor wiring
   
Sensor

LOW SENSOR
EFFICIEN C Y (slo p e)
Check calibration
Clean sensor
Check sensor wiring
   
Sensor

HIGH SENSOR
OFFSET
Check calibration
Clean sensor
Check sensor wiring
   
Sensor

LOW SENSOR
OFFSET
Check calibration
Clean sensor
Check sensor wiring
   
Electronics

DIAGNOSTIC
INPUT READ ERROR
Check sensor wiring
If problem persists
change sensor module
   
Electronics

REFERENCE IMPEDANCE
INPUT READ ERROR
Check sensor
If problem persists
change sensor module
   
Sensor

HIGH REFERENCE
IMPEDANCE
Check sensor
Check sensor wiring
   
Operation

POWER SUPPLY
VOLTAGE
OUTSIDE LIMITS
Trim output
Ensure power supply
voltage is within
limits
    
Electronics

SENSOR MODULE
VOLTAGE WARNING
Check sensor wiring
If problem persists
change sensor module
      
Conguration

MANUAL TEMPERATURE
COMPENSATION MODE
Check temperature
sensor and perform
TC recognition
      
…Table 2 Diagnostic alarms