Advertisement
Quick Links
5 ELECTRICAL CONNECTIONS
Warning. Before making any connections, ensure that the power supply, any
high voltage-operated control circuits and high common mode voltages are
switched off.
Note. For details of connecting the cable to the analyzer, refer to Section 5.2 or
the User Guide for the analyzer.
Terminal Head Connections
Blue (Temperature Compensator) and
Red (Temperature Compensator Third Lead)
Green (Cell Electrode)
Strip leads
15mm
Wrap lead around
terminal screw
Screen
Black (Earth [Ground]
Yellow (Temperature Compensator)
Electrode) – see Note
Note. The screen is cut back and left
unconnected on earthed (grounded) cells.
AC211 and AC221 Insertion Cell, Terminal Head Connections
Black (Earth [Ground]
Green
Electrode) – See Note
(Cell Electrode)
Blue
Yellow (Temperature
(Temperature
Compensator)
Compensator)
Screen/Shield
Red
(Temperature
Compensator
Third Lead)
AC212 Flow-through Cell Connections
Connections to AX41x, TB82 and 4620 Conductivity Transmitters
A
A
A
A
A
X
X
X
X
X
4
4
4
4
4
x 1
x 1
x 1
x 1
x 1
T
T
T
T
T
B
B
B
B
B
8
8
8
8
8
2
2
2
2
2
T
T
T
T
T
E
E
E
E
E
4
4
4
4
4
6
6
6
6
6
2
2
2
2
2
0
0
0
0
0
S
e
s n
r o
B
S
e
s n
r o
A
B
u l
e
B
1
B
9
T
B
- 2
* 5
7
R
e
d
B
2
B
1
0
T
B
- 2
* 5
6
Y
e
o l l
w
B
3
B
1
1
T
B
2
6 -
5
S
r c
e e
n
B
4
B
1
2
T
B
2
7 -
1
G
r
e e
n
B
5
B
1
3
T
B
2
1 -
3
B
a l
k c
B
6
* *
B
1
4
* *
T
B
2
4 -
4
*
Wires are connected to the same terminal.
**
When connecting non-metal conductivity cells that are isolated from earth
(ground), e.g. mounted in plastic, link the following terminals to the earth
(ground) stud on the analyser case:
• AX41x Terminal B14
• AX411 Terminal B6
• 4620 Terminal 4
• 4620 Terminal 9
Note. When connecting earthed (grounded) metal conductivity cells, ensure that the
cell earth (ground) and the analyzer earth (ground) are at the same potential.
6 CLEANING
Caution. While cleaning, do not wet the electrical connection terminals.
6.1 Cleaning the Measuring Cell
Conductivity cells require periodic cleaning, the frequency of which depends on the
particular application in which they are employed. Although measuring cells are free
of contamination when supplied, they should be cleaned prior to installation.
Caution. Do not touch the cell bore by hand or use sharp implements when
cleaning the cell.
6.1.1 A210 Series 2-Electrode Carbon Cells
Thoroughly clean the electrode with a 1:1 solution of water and non ionic detergent
using the bottle brush provided. For more tenacious deposits, a 2% hydrochloric
acid solution may be used. After cleaning, rinse the cell several times in distilled water
and then examine it. Looking through the bore towards a source of illumination, the
surface should have an evenly wetted appearance. If the surface has dry patches
where the water has 'peeled' away this is an indication of the presence of grease and
repeated cleaning and rinsing is required until the cell bore is wetted evenly.
6.1.2 A220 Series 2-Electrode Stainless Steel Cells
Unscrew the outer electrode. Thoroughly clean the electrode with a 1:1 solution of
water and detergent using the bottle brush provided. For more tenacious deposits,
a 2% hydrochloric acid solution may be used.
After cleaning, rinse the cell thoroughly in distilled water and examine it. With a
source of illumination shining into the electrode system, the interior surface of the
outer electrode and the whole of the central electrode should have an evenly wetted
appearance. If the surfaces have dry patches where the water has 'peeled' away this
is an indication of the presence of grease and repeated cleaning and rinsing is
required until the electrodes are evenly wetted. Refit the outer electrode.
4
4
4
4
4
6
6
6
6
6
2
2
2
2
2
5
5
5
5
5
6
7
8
1
2
1
0
9
ABB has Sales & Customer Support expertise in
The Company's policy is one of continuous product
over 100 countries worldwide
improvement and the right is reserved to modify the
www.abb.com
information contained herein without notice.
Printed in UK (11.04)
ABB Limited
ABB Inc.
Oldends Lane, Stonehouse
Analytical Instruments
Gloucestershire
9716 S. Virginia St., Ste. E
GL10 3TA
Reno, Nevada 89521
UK
USA
Tel: +44 (0)1453 826661
Tel: +1 (0) 775 850 4800
Fax: +44 (0)1453 829671
Fax: +1 (0) 775 850 4808
Installation Guide
IM/AC2CO_4
© ABB 2004
AC200 Series
Conductivity Cells
Advertisement
Related Manuals for ABB AC211
Summary of Contents for ABB AC211
- Page 1 Printed in UK (11.04) appearance. If the surfaces have dry patches where the water has ‘peeled’ away this AC211 and AC221 Insertion Cell, Terminal Head Connections © ABB 2004 is an indication of the presence of grease and repeated cleaning and rinsing is required until the electrodes are evenly wetted.
- Page 2 , p i ) t f h t i t i f l l e AC211 and AC221 Insertion Cells l l e Sample Cell Always NPT versions: Fully Immersed Apply PTFE tape to the pipe then...