Description Of Displays And Operating Features; Display Functions; Limit Value Displays; Alarm Message - ABB AW101 Instruction Manual

Water Hardness Analyzer
AW101 Testomat
4 Description of Displays and
Operating Features
1
1 0.12
^ 1:0,30 ^ 2:0,40
2
1
0.12 °d H
^ 1:0,30
2
Status of Permanent Adjustable
limit value measurement limit values
display
Fig. 4.1 Display Functions
a
Status of Limit Value Displays
Displays the status of the limit values LV1 and LV2.
b
Text Display
Displays the current analysis, all important status results
and programming data in a 2-line LCD.
c
Alarm
Displays a function fault.
d
Power Switch
The On/Off switch is located on the right-hand side panel.
e
Unit Fuse (inside the unit)
Protects outputs against overload and short circuit.
f
Analysis Message
Displays current analysis.
6
2 3
4
5
°dH
6
7
ANALYSE
8
9
10
M I
12 11
^ 2:0,40
ANALYSE
Symbol: Indicators for
Reagent alarm and
alarm: ON maintenance

4 Description of Displays and Operating Features

g
Programming Keys (Cursor block with ENTER)
These keys are used to enter all values and programming
data.
h
'Manual' – manual start of an analysis.
i
'STANDBY' – manual analysis stop/standby.
j
'Alarm' – cancels alarm message.
k
I-Key
Access all unit information.
l
M-key
Access the programming menu.

4.1 Display Functions

Status of limit values 1 and 2
1: The red display lamp is lit if limit value 1 i(LV1) s
reached or exceeded. It turns green if the measured value
falls below the set limit value.
2: The red display lamp is lit if limit value 2 (LV2) is
reached or exceeded. It turns green if the measured value
falls below the set limit value.
Status and measured value display:

In continuous operation the current measured value is
shown in the upper line.

When the measured value falls below the measuring range
'<' is displayed: for example, <0.05 °dH

When the measured value exceeds the measuring range
'>' is displayed: for example, >10.0 °dH

When the analysis interval is stopped while in operation
(Analysis Stop), STANDBY and measured value are
displayed alternately.

The icon appears if the low-level reagent alarm is
active.

4.2 Limit Value Displays

The adjustable limit values are shown in the bottom display line.

4.3 Alarm Message

A fault condition is signalled by a red light.
Error messages are displayed alternately with the normal display
text and can only be deleted by cancellation and correction of
the fault.
IM/AW101 Rev. C