ABB AWT420 User Manual

AWT420 | UNIVERSAL 4-WIRE, DUAL-INPUT TRANSMITTER | OI/AWT420-EN REV. B
3
13 Configuration (Advanced access level) ...... 36
Calibrate ..........................................37
Buffer solutions .............................37
Sensor Setup ..................................... 38
 ..................................... 38
 .......................................... 39
Input/Output .....................................41
 .................42
Process Alarm .................................... 43
Process alarm examples......................43
Media Card ......................................44
Control .......................................... 45
Communication .................................. 47
 ....................................... 48
Analog sources and digital input/output sources ...49
Analog sources ..............................49
 .......................49
 .........................49
14 Sensor setup .............................. 50
2-electrode conductivity .......................... 50

dual input calculated values setup ..................51
4-electrode conductivity ......................... 52
pH/Redox/ORP .................................. 53
 ............................................. 54
Turbidity/Suspended solids ...................... 54
15 Calibration procedures..................... 55
2-electrode conductivity .......................... 55
2-electrode conductivity, resistivity or
concentration calibration ......................... 56
4-electrode conductivity ......................... 57
4-electrode conductivity calibration ............... 58
pH/Redox/ORP .................................. 59
pH/Redox/ORP calibration ........................60
1-Point calibration ...........................60
2-Point calibration ...........................62
1-Point automatic calibration .................64
2-Point automatic calibration.................65
In Process calibration (pH) ...................66
Sample collection............................67
Sample complete ............................68
Temperature calibration .......................... 69
Turbidity Total Suspended Solids (TSS) ............ 70
Turbidity TSS sensor verification ...................71
Preparing the verification tool and
locking the sensor in place ...................71
…15 Calibration procedures
Turbidity TSS calibration ...........................72
1-Point calibration ...........................72
2-Point calibration ...........................74
TSS calibration ................................... 76
1-Point calibration ...........................76
2-Point calibration ...........................77
TSS manual calibration ........................... 78
In Process calibration ............................. 79
Sample collection............................79
Collection complete..........................80
 ..............................................81
 .......................81
1-Point calibration ...........................81
2-Point calibration ...........................82
16 Troubleshooting ........................... 83
 ............................. 83
AWT420 transmitter diagnostics .............83
2-electrode conductivity diagnostics .........85
4-electrode conductivity diagnostics .........86
pH diagnostics ..............................87
.............................89
TSS diagnostics .............................90
17 Specification .............................. 92
Operation ........................................ 92
Mechanical data .................................. 92
Security ......................................... 92
Electrical ........................................ 92
Analog outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Relay outputs .................................... 92
 .............................. 92
Connectivity/Communications (optional) .......... 93
 ..................................... 93
Environmental data .............................. 93
2-electrode conductivity .......................... 93
4-electrode conductivity ......................... 94
pH/ORP (Redox) ................................. 94
EZLink specification .............................. 95
Approvals, certification and safety ................ 95
EMC .............................................96

ABB AWT420 Specifications

General

Brand	ABB
Model	AWT420
Category	Transmitter
Language	English