ABB AWT420 - Table of Contents

2 AWT420 | UNIVERSAL 4-WIRE, DUAL-INPUT TRANSMITTER | CI/AWT420-EN REV. B
Contents
1 Health & Safety ............................. 4
 ................................ 4
Safety precautions ................................ 4
Potential safety hazards ........................... 4
 ...............4
Safety standards .................................. 4
Product symbols .................................. 4
Product recycling and disposal
(Europe only) .......................................5
End-of-life battery disposal ...................5

2011/65/EU (RoHS II) ...............................5
Cleaning ...........................................5
2 Cyber security...............................5
Communication protocol specific..............5
3 Overview....................................6
4 Mechanical installation.......................6
Transmitter installation ............................ 6
Optional accessories..........................6
Location .....................................6
Sensor installation ................................ 6
Transmitter dimensions.......................7
Optional weathershield dimensions............7
Sensor modules ..............................7
Communication module.......................7
Wall-mounting................................7
Panel-mounting (optional) ....................8
Pipe-mounting (optional) .....................9
5 Electrical installation ...................... 10
Earth bonding .....................................10
Cable entries ......................................10
Terminal connections ..............................11
 ...12
Conductivity sensor module connections ...........12
2-electrode sensors..........................12
4-electrode sensors .........................12
pH and conductivity connections ..................13
pH/ORP/pIon sensor module connections.....13
Power supply connection ..........................14
Fitting the EZLink modules ........................16
Connecting EZLink sensors ........................18
Long cables .................................18
6 Easy Setup .................................18
7 Operation ..................................19
Front panel keys ...................................19
Modes of operation .............................. 20
Operator menus .................................. 20
Operating modes .................................21
View mode ....................................... 23
 ............................23
Signals View.................................23
Chart View ..................................23
Alarms View .................................23
Outputs View................................23
Log mode ........................................ 24
Log entries ...................................... 24
8 Data logging .............................. 25
Removable SD card ..............................25
Removable media ................................ 25
 .................... 25
9 Password security and Access Level ......... 26
Setting passwords ............................... 26
Access Level ..................................... 26
10 Sensor setup ...............................27
2-electrode conductivity ...........................27

dual input calculated values setup ................. 28
4-electrode conductivity ......................... 29
pH/Redox/ORP .................................. 30
 ..............................................31
Turbidity/Suspended solids .......................31
11 Specification ...............................32
Operation ........................................ 32
Mechanical data .................................. 32
Security ......................................... 32
Electrical ........................................ 32
Analog outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Relay outputs .................................... 32
 .............................. 32
Connectivity/Communications (optional) .......... 33
 ..................................... 33
Environmental data .............................. 33
2-electrode conductivity .......................... 33
4-electrode conductivity ......................... 34
pH/ORP (Redox) ................................. 34
EZLink ........................................... 35
EMC ............................................. 35
Approvals, certification and safety ................ 35