Endress+Hauser DipFit W CPA 111 User manual

BA 112C/07/en/03.00
No. 51502878 DipFit W CPA 111
Immersion Assembly for
pH/Redox Measurement
Operating Instructions

DipFit W CPA 111
Endress+Hauser 1
Table of contents
1Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1 Safety symbols . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2 Intended application . . . . . . . . . . . . . . . . . . . . 2
1.3 Installation, start-up, maintenance . . . . . . . . . 2
1.4 Operational security . . . . . . . . . . . . . . . . . . . . . 3
1.5 Sending back . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Identification . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Product designation . . . . . . . . . . . . . . . . . . . . . 4
2.2 Scope of supply . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1 Measuring system . . . . . . . . . . . . . . . . . . . . . . 5
3.2 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.3 Overview of mounting parts . . . . . . . . . . . . . . . 7
3.4 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4 Maintenance . . . . . . . . . . . . . . . . . . . . . . 15
4.1 Cleaning of electrodes . . . . . . . . . . . . . . . . . . 15
4.2 Maintenance work . . . . . . . . . . . . . . . . . . . . . . 16
5 Accessories . . . . . . . . . . . . . . . . . . . . . . . 17
6 Technical data . . . . . . . . . . . . . . . . . . . . 20

1 Safety DipFit W CPA 111
2Endress+Hauser
1Safety
1.1 Safety symbols
#Warning!
This symbol alerts to hazards. Disregard may cause serious injuries to persons or
damage to equipment.
"Caution!
This symbol alerts to possible malfunction due to operator error. Disregard may cause
damage to equipment.
!Note!
This symbol indicates important items of information.
1.2 Intended application
The immersion and process assembly DipFit W CPA 111 is suitable for universal use
in waste water / water treatment as well as process applications. It can be used in
pressures of up to 4 bar.
The bayonet mounting technique of the electrode holder permits the electrodes to be
removed and installed quickly and conveniently.
The chemical electrode cleaning system Chemoclean can be integrated without
modifying the assembly if one of the three electrode mounting positions is free.
All required accessories are available:
•Wet bucket
•KCl reservoir
•Calibration cap
•Mounting frame
•Pendulum frame
•Adapter for adjustable flange
•Spray cleaning.
1.3 Installation, start-up, maintenance
#Warning!
•The assembly may only be installed, commissioned and serviced by properly trained
personnel authorised by the system operator.
•The personnel must be familiar with these operating instructions and must adhere to
the instructions contained therein.
•Damaged assemblies that may be dangerous must not be operated and should be
clearly identified as being defective.
•Any troubleshooting of the assembly and complete measuring system is to be
performed exclusively by authorised, trained personnel.
•If faults cannot be remedied, the assembly must be removed from service and
secured to prevent accidental start-up.
•Maintenance work not described in these operating instructions may only be
performed at the manufacturer’s works or by the Endress+Hauser service
organisation.

DipFit W CPA 111 1 Safety
Endress+Hauser 3
1.4 Operational security
The assembly has been designed for safe operation according to the state-of-the-art
in engineering and according to current regulations and European standards (see
“Technical data”). It has left the manufacturer’s works in perfect condition.
However, if used improperly or for purposes other than the intended purpose, it may be
dangerous, e.g. due to incorrect installation or incorrect operating conditions.
#Warning!
•Operation in any way other than as described in these instructions may compromise
the safety and function of the measuring system and is therefore impermissible.
•The notes and warnings in these operating instructions must be strictly adhered to.
Notes for installation in pressurized systems
#Warning!
•The maximum operating pressure of the assembly must not be exceeded.
•The system must be depressurized before installation or removal of the assembly.
•Couplings and lines must be checked for leakage and damage at regular intervals.
1.5 Sending back
In case of repair, please send the cleaned assembly back to the Endress+Hauser sales
agency in your area. Use the original packaging material if possible.
If you send back assemblies from toxic or strongly aggressive processes, please fill in
and enclose the “Safety regulation form for repairs of E+H instruments”(see last page
but one of these operating instructions).

2 Identification DipFit W CPA 111
4Endress+Hauser
2 Identification
2.1 Product designation
2.1.1 Nameplate
Fig. 2.1: Nameplate of DipFit W CPA 111-00A
2.1.2 Product structure
2.2 Scope of supply
"Caution!
•Verify that the packaging is undamaged! Inform the post office or freight carrier of any
damage. Keep the original packaging material until the matter has been settled.
•Verify that the contents are undamaged! Inform the post office or freight carrier of any
damage and consult your supplier. Keep damaged merchandise until the matter has
been settled.
•Check that the delivery is complete and agrees with the shipping documents and your
order (refer to nameplate for type and version).
The delivery includes:
•Assembly DipFit W CPA 111
•Operating instructions BA 112C/07/en.
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).
Length of the assembly
0 1000 mm
1 2000 mm
2500…3000 mm (A, C, F only)
Material
0 Assembly of PP, sealing of EPDM
Process connection / material
A Flange DN 100 of PP-GF 20, unpressurized
B Adapter for adjustable flange DN 100 of PP-GF 20, variable adjustment of
immersion depth
C Pressurized flange DN 100, max. 4 bar
D Suspension bracket of SS 316Ti (1000 mm only)
F For pendulum frame mounting
CPA 111- complete order code

DipFit W CPA 111 3 Installation
Endress+Hauser 5
3Installation
3.1 Measuring system
A complete measuring system comprises
•the assembly DipFit W CPA 111
•a pH and/or redox electrode with a length of 120 mm
•a pH/redox measuring transmitter, e.g. Liquisys M CPM 223 or CPM 253
•a measuring cable, e.g. CPK 1, CPK 7 or CPK 9
and optionally
•a temperature sensor Pt 100
•a junction box VBA or VBM
•an extension cable, e.g. CYK 71.
Fig. 3.1: Example of a complete measuring system with DipFit W CPA 111
ENDRESS+HAUSER
LIQUISYS
CAL REL
REL1
REL1
ALARM
REL2
REL2
E
DipFit W CPA 111 Junction box
VBA
Measuring transmitter
Liquisys M CPM 253
A-CPA111x-14-xx-xx-en-001.ep
s
Skintop cable gland Pg 16
Cable gland Pg 13.5
Measuring cable CPK 1 / 7 / 9
Electrode holder
(3 mounting positions)
Extension cable
CYK 71

3 Installation DipFit W CPA 111
6Endress+Hauser
3.2 Dimensions
Fig. 3.2: Dimensions of CPA 111-A/C (left), CPA 111-B (right)
a Assembly head
b Dummy plug Pg 16
c Cable gland Pg 13.5
d Star handle screws
e Flange DN 100
f Electrode holder
g Adjustable flange
Fig. 3.3: Pressurized flange DN 100 for CPA 111-C, max. 4 bar (left), flange DN 100 for CPA 111-A/B (right)
a Through holes for captive star handle screws

DipFit W CPA 111 3 Installation
Endress+Hauser 7
3.3 Overview of mounting parts
3.3.1 Versions with flange DN 100
Fig. 3.4: Overview of CPA 111-A/C
a Recessed head screws (4 pieces)
b Assembly head
c Dummy plug Pg 16
d Cable gland Pg 13.5
e Star handle screws (not for pressurized version)
f Flange DN 100; version A: standard; version C: pressurized flange
g Assembly pipe
h Bore hole for wet bucket
i AMP plug for PM connection
j O-ring
k Electrode holder (3 mounting positions)
l PM (potential matching pin); material: SS 316Ti
m Punch hole for electrolyte reservoir CPY 7
n Option: accessories Chemoclean CPR 30
o Dummy plug
p O-ring for electrode installation

3 Installation DipFit W CPA 111
8Endress+Hauser
3.3.2 Version with adjustable flange DN 100
Fig. 3.5: Overview of CPA 111-B
a Adapter for adjustable flange (2 half-shells)
b O-ring for tolerance compensation
c Bayonet lock
d Electrode holder (3 mounting positions)
e Straining screws (2 pieces) for adjustable flange
f Flange DN 100