ABB AWT420 User Manual

2 AWT420 | UNIVERSAL 4-WIRE, DUAL-INPUT TRANSMITTER | OI/AWT420-EN REV. B
Contents
1 Health & Safety ..............................5
 .................................5
Safety precautions .................................5
Potential safety hazards ............................5
 ...............5
Safety standards ...................................5
Product symbols ...................................5
Product recycling and disposal
(Europe only) ...................................... 6
End-of-life battery disposal ...................6

2011/65/EU (RoHS II) .............................. 6
Cleaning .......................................... 6
2 Cyber security ...............................6
Communication protocol specific..............6
3 Overview....................................7
4 Mechanical installation.......................8
Sensor installation ................................ 8
Transmitter installation ............................ 8
Optional accessories..........................8
Location .....................................8
Transmitter dimensions.......................8
Optional weathershield dimensions............8
Sensor modules ..............................8
Communication module.......................8
Wall-mounting................................9
Panel-mounting (optional) ...................10
Pipe-mounting (optional) .................... 11
5 Electrical installation .......................12
Earth bonding .....................................12
Cable entries ......................................12
Terminal connections ..............................13
 ...14
pH and conductivity connections ..................14
pH/ORP/pIon sensor module connections.....14
Conductivity sensor module connections ...........15
2-electrode sensors..........................15
4-electrode sensors .........................15
Power supply connection ..........................16
Fitting the EZLink modules ........................18
Connecting EZLink sensors ....................... 20
Long cables .................................20
6 Easy Setup .................................21
7 Calibration and sensor setup ................21
8 Hot plug-in (EZLink sensors only) ............22
Sensor setup parameters ......................... 22
Transmitter configuration parameters ............ 22
Sensor addition .................................. 22
Sensor replacement .............................. 23
Replacing the sensor with a sensor
of the same type.............................23
Replacing a sensor with a sensor
of a different type ...........................23
Sensor removal ................................... 24
 ...........24
9 Operation ................................. 25
Front panel keys .................................. 25
Modes of operation .............................. 26
Operator menus .................................. 26
Operating modes .................................27
View mode ....................................... 29
 ............................29
Signals View.................................29
Chart View ..................................29
Alarms View .................................29
Outputs View................................29
Log mode ........................................ 30
Log entries ......................................30
10 Data logging ...............................31
Removable SD card ..............................31
Removable media .................................31
 .....................31
Archive file types ................................. 32
 ........................................ 32
Log files ......................................... 32
 ................................... 32
Start of daylight saving period ...............32
End of daylight saving period.................32
11 Password security and access level ..........33
Setting passwords ............................... 33
Access Level ..................................... 33
12 Display icons .............................. 34
 ................................. 34
NAMUR icons ................................34
Alarm, hold, and clean icons ..................34
Title bar icons .................................... 34
Status bar icons .................................. 35
Log icons ........................................ 35

ABB AWT420 Specifications

General

Brand	ABB
Model	AWT420
Category	Transmitter
Language	English