Endress+Hauser probfit CPA 463S User manual

BA 151C/07/en/07.96
No.50079942
probfit
CPA 463S
Retractable assembly
for pH / redox
measurement
Operating Instructions
Nothing beats know-how
Endress
Hauser

Please refer to the following chapters for information on
the assembly:
Description of assembly
General information
You wish to install and connect the assembly.
The required steps are described in this chapter:
Installation
You wish to operate the assembly.
The required steps are described in these chapters:
Operation Calibration
Please refer to this chapter for maintenance instructions:
Maintenance

Table of contents
1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1 Symbolsused ......................................................... 2
1.2 Safetynotes........................................................... 2
2 Description of assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1 Design............................................................... 3
2.2 Areas of application. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.3 Measuring system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.4 Function.............................................................. 4
2.5 Ordering system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.6 Accessories........................................................... 6
2.7 Technicaldata......................................................... 6
3 Installation........................................................... 7
3.1 Unpacking............................................................ 7
3.2 Dimensions ........................................................... 7
3.3 Mounting............................................................. 8
3.4 Electrode installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.5 Pneumatic connections of CPA 463S-R / CPA 463S-A. . . . . . . . . . . . . . . . . . . . . . . . . 10
3.6 Rinse port adapter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4 Pneumatic operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5 Calibration.......................................................... 13
5.1 Calibration with electrode removed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.2 Calibration under process conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6 Maintenance ........................................................ 14
6.1 Cleaning............................................................. 14
6.2 Manual cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.3 Selection of cleaning agents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.4 Replacement of wearing parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7 Index............................................................... 15
probfit CPA 463S Table of contents
Endress+Hauser 1

1 General information
1.1 Symbols used
Warning!
This symbol alerts to hazards which
may cause irreparable damage.
Caution!
This symbol alerts to possible
malfunction due to operator error.
Note!
This symbol indicates important
items of information.
1.2 Safety notes
These installation and operating instructions
describe the intended use of the assembly.
Warning
Operating the assembly in any way
other than as described in these
instructions may compromise the
safety and function of the assembly
and systems connected and is
therefore impermissible.
Connection and maintenance work
performed on this device may only
be carried out by trained personnel.
Repairs may be performed at the
manufacturer’s works or by the
Endress+Hauser Service
Organization only.
Interventions in or changes to the
device are impermissible and will
void the warranty.
It is the operator’s responsibility to
assure that local safety regulations
are observed.
General information probfit CPA 463S
2 Endress+Hauser

2 Description of assembly
2.1 Design
2.2 Areas of application
The assemblies from the Probfit CPA 463S
family permit pH or redox electrodes to be
sealed off from the medium, cleaned,
calibrated or changed under process
conditions. Versions made of plastic and
metallic materials are available to meet a
variety of industrial requirements. These
assemblies are operated pneumatically.
The Probfit CPA 463S is particularly suitable
for the following areas of application:
• Chemical production
• Textile industry
• Waste water treatment
• Water processing
• Electrode-critical processes
• Tank filling systems
• Power plants
• Automated pH measurement
CPA 463S
Pneumatic cylinder
Rinse port G
1
/
4
“
Protective sleeve
Splash protection cap
for measuring cable
Flanged sleeve
Loose flange
Electrode guide
Sealing piston
Fig. 2.1 Design of Probfit
assembly CPA 463S
pa463sb2.cdr
Pneumatic
connections
probfit CPA 463S Description of assembly
Endress+Hauser 3

2.3 Measuring system
A measuring system comprises:
• the Probfit CPA 463S assembly
• a pH/redox electrode suitable for the
assembly and medium to be measured
• a pH/redox measuring instrument,
e.g. CPC 200/210
• Measuring cable CPK 7 (ready-made)
• Connecting hoses for calibration buffer
solutions and cleaning agent
2.4 Function
The retractable CPA 463S assemblies are
mounted using a loose flange. The electrode
guide with the built-in pH/redox electrode can
be moved into the process pneumatically for
measurement, or withdrawn into the assembly
for calibration, cleaning or electrode
replacement.
When withdrawn, the assembly is sealed off
from the process by means of a sealing
piston. This permits cleaning, calibration
and electrode changes to take place without
interrupting the process.
Assembly
Probfit
CPA 463S
Water
connection
4 ... 6 bar
Compressed
air
connection
4 ... 6 bar
Process space
with medium
pH
measuring
cable
Pneumatic unit
Multiple hose
connection
Control unit
pa463sb3.cdr
Cleaning agentBuffer 2Buffer 1
Fig. 2.2 Example of a complete
measuring system
probfit CPA 463S Description of assembly
4 Endress+Hauser

The retractable assemblies CPA 463S-R
and CPA 463S-A can be remote-controlled
pneumatically and are distinguished by the
following features:
• Two pneumatic signal outputs for the
“measurement” and “service” limit
positions are available for purposes of
control or visual indication.
This greatly simplifies controlling the
assembly. A pneumatic changeover switch is
basically all that is needed. Installation is very
simple since only 4 pneumatic control lines
are connected to the assembly.
The CPA 463S-A is equipped with a
rinse port adapter (water valve block) with
5 connections. This water valve block can be
retrofitted on the CPA 463S-R.
2.5 Ordering system
zpa463s.tif
Fig. 2.3 Nameplate of
Probfit CPA 463S-A
pH process assembly Probfit CPA 463S
Version
A With rinse/calibration connection for Airtrol
R With rinse connection
Y Special version
Immersion depth / material
01 165 mm / PVC
02 165 mm / PVDF/PEEK
12 265 mm / PVDF/PEEK
03 165 mm / 1.4571
13 265 mm / 1.4571
04 165 mm / Hastelloy C4
14 265 mm / Hastelloy C4
05 165 mm / PEEK
15 265 mm / PEEK
99 Special version
O-ring material
1 EPDM
2 Viton
4 Chemraz
9 Special material
Mounting types
1 Installation via DN50 flange
2 Installation via 2" ANSI flange
9 Special version
CPA 463S- ⇐complete order code
probfit CPA 463S Description of assembly
Endress+Hauser 5

2.6 Accessories
The range of special accessories for the
Probfit CPA 463S assemblies available from
Endress+Hauser includes:
• Water valve block,
order no. 50048118
• Retraction sacurity lock,
order no. 50051999
• Protective sleeve for
liquid-filled electrode CPS 41,
order no. 50048071
• pH/redox combination electrodes
according to the following tables
pH combination electrodes, length 360 mm
Electrode type Temperature pH
range
CPS 11-1AA5GSA 0 ... 80 °C 1 ... 12
CPS 11-2AA5TSA 0 ... 80 °C 1 ... 12
CPS 11-1BA5GSA 10 ... 130 °C 1 ... 14
CPS 11-2BA5TSA 10 ... 130 °C 1 ... 14
CPS 41-2BB5TSS 10 ...120 °C 1 ... 14
Redox comb. electrode, length 360 mm
Electrode type Temperature pH
range
CPS 12-0PA5GSA -15 ... 130 °C 1 ... 14
2.7 Technical data
Materials used
CPA 463S R/A/H types PVC PVDF 1.4571 PEEK HC4
Part
Pneumatic cylinder PVC PVC PVC-C PVC-C PVC-C
Housing PVC PVDF PVDF PEEK PEEK
Electrode guide PVC PEEK 1.4571 PEEK HC4
Flanged sleeve PVC PVDF 1.4571 PEEK HC4
Flange PVC UB-GF 1.4571 UB-GF 1.4571
Pressure and temperature
CPA 463S-R/-A
PVC ................................................ 6bar/20°C;0bar/60°C
PVDF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 bar / 20 °C; 1 bar / 100 °C
1.4571, PEEK, HC4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 bar/ 100 °C
Connections
Compressed air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . filtered (≤5µm), water- and oil-free
Compressed air pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 ... 6 bar
O-rings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EPDM, Viton, Chemraz
CPA 463S-A: rinse port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . inlet G ¼ “, outlet G ¼ ”
Water valve block flushing connections . . . . . . . . . . . . . . . . . . . . . . . . . 5 x for hose OD6 / ID4
CPA463S:controllines......................................4xforhoseOD6/ID4
Weight (for immersion depth 165 / 265 mm)
PVC version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5 kg / 5 kg
PVDF, PEEK versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5 kg / 5 kg
1.4571, HC4 versions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 kg / 8 kg
Electrodes (selection) . . . . pH combination electrode type Orbisint CPS 11, length 360 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . also with integrated Pt 100
Attachment . . . . . . . . . . . . . . . . . . . . . 4-hole flange DN 50/PN 10 acc. to DIN; ANSI 2" flange
Connecting dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (also see fig. 3.2)
probfit CPA 463S Description of assembly
6 Endress+Hauser

3 Installation
3.1 Unpacking
Inspect for any damaged packaging! The
post office or freight carrier must be informed
of any damage. Damaged packaging material
must be retained until the matter has been
settled!
Verify that the contents are undamaged!
Inform the post office or freight carrier as
well as the supplier of any damage.
Check that the delivery is complete and
agrees with the delivery papers and your
order:
• Quantity delivered
• Assembly type and version according to
nameplate (see fig. 2.3)
• Accessories
−Installation and operating instructions
−Socket wrench (size 17) for electrode
replacement
−Hose guidance clamp
−Electrode support sleeve
If you have any questions, consult your
supplier or the Endress+Hauser sales agency
in your area (see back cover of these
operating instructions for addresses).
3.2 Dimensions
∅42
165
➀580.5
∅90
∅90
97
554
➀791
196
97
97
24
442
∅42
265
CPA 463S
short version CPA 463S long version
➀Length in
extended
state
Fig. 3.1: Dimensions of
Probfit CPA 463S
pa463sb4.cdr
24
probfit CPA 463S Installation
Endress+Hauser 7

3.3 Mounting
ØD
Øk
Ød2
bflansch.cdr
Fig. 3.2 Loose flanges used on
Probfit assemblies
Bend
Min. 15°
Tank
Horizontal
pipes
Vertical pipes
Min. 15°
Fig. 3.3 Examples for installation
pa463st5.eps
Flow direction
Flow direction
Flange version Ø D Ø k Ø d2b
DIN flange
DN 50/PN 10, 1.4571 165 125 18 18
DIN flange
DN 50/PN 10, UP/GF 165 125 18 18
ANSI 2" flange,
150 lbs, 1.4571 152.4 120.6 19 19
ANSI 2" flange,
PN 10, UP/GF 165 121 19 18
Note
In the mounting position, the centre
axis of the assembly must have a
minimum inclination of 15° above the
horizontal (see fig. 3.3).
The hole in the mating flange must
have a diameter of at least 45 mm.
Immersion depth: 165 or 265 mm
Caution
The installation depth is to be
chosen such that the protection
guard is located in the medium.
Install the assembly according to the examples
for installation in fig. 3.3 using M 16 bolts,
nuts and washers. To facilitate bolt installation,
the assembly can be rotated somewhat in
the longitudinal axis until firmly tightened.
probfit CPA 463S Installation
8 Endress+Hauser