Introduction; Classification; Glossary; General Description - ABB AW400 Series Instruction Manual

2 INTRODUCTION

2.1 Classification

According to EN61010-1, AW400 is classified an:
• electrical equipment for measurement and test
• electrical equipment for process control
• electrical equipment designed to be safe at least in the following conditions:
altitude lower than 2000 m
–
– operation temperature limits -10 to + 50 °C
– storage temperature limits -40 to + 65 °C
maximum relative humidity: 80 % with temperature up to 31 °C, with linear decrease down to 50%
–
with temperature 40 °C
– supply voltage allowed variations: 115 or 230 V ac ± 10 %
– over voltage class (installation class): II
pollution degree: 2
–

2.2 Glossary

PARAMETER
pH
ORP (oxidation reduction potential)
Dissolved Oxygen*
Residual Chlorine
Chlorine Dioxide
Ozone
Temperature
These symbols are also used in displayed indications.
* Not supported at this time.

2.3 General Description

AW400 Monitor/Controller Family includes 2 Types of instrument:
• Transmitter (Instrument Type 1)
A group of transmitters, both single channel and dual channels and three channels.
• Controller (Instrument Type 2)
PID controller for the installed Sensor, with specific algorithms for each type of measured parameter. It can
accept an optional 4–20 mA signal from a flow-meter on channel 2. This second input can be used as Feed
Forward input in the PID algorithm.
4
SYMBOL
pH
mV
O2
Cl
CD
O3
T