Endress+Hauser Stamolys CA71CODcr User manual

BA458C/07/EN/06.10
71115573
Valid of:
Software version 01.00.04
Operating Instructions
Stamolys CA71CODcr
Photometric analytical system for determining the chemical
oxygen demand following the DIN dichromate method

Brief overview Stamolys CA71CODcr
2Endress+Hauser
Brief overview
Inlet to the sample pump:
•ValveV1
– Front hose: sample inlet
– Rear hose: inlet from valve V2 (0 mg/l O2standard or standard)
•ValveV2
– Front hose: inlet from canister with standard
– Rear hose: inlet from canister with 0 mg/l O2standard
a0012419
Fig. 1: Analyzer (cabinet version without hoses)
1
2
3
4
5
6
Reagent pump (P2), inlet from canister
Display and temperature indicator
Serial interface RS 232
Reactor unit
Valve V4
Cover (broken open in the graphic)
7
8
9
10
11
12
Rinse outputs (wastewater, chromate waste,
overflow)
Reagents, standard
Valve V3
Valve V2
Valve V1
Sample and sulfuric acid pump P1

Stamolys CA71CODcr
Endress+Hauser 3
Table of contents
1 Safety instructions . . . . . . . . . . . . . . . . 4
1.1 Designated use . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Installation, commissioning and operation . . . . . . . . 4
1.3 Operational safety . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.4 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.5 Safety messages and their meaning . . . . . . . . . . . . . 5
2 Identification . . . . . . . . . . . . . . . . . . . . 6
2.1 Device designation . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Certificates and approvals . . . . . . . . . . . . . . . . . . . . 7
3 Installation . . . . . . . . . . . . . . . . . . . . . . 8
3.1 Incoming acceptance, transport, storage . . . . . . . . . . 8
3.2 Installation conditions . . . . . . . . . . . . . . . . . . . . . . . 8
3.3 Installation instructions . . . . . . . . . . . . . . . . . . . . . 10
3.4 Installation examples . . . . . . . . . . . . . . . . . . . . . . . 11
3.5 Post-installation check . . . . . . . . . . . . . . . . . . . . . . 12
4 Wiring . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . 13
4.2 Signal connection . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.3 Switching contacts . . . . . . . . . . . . . . . . . . . . . . . . 16
4.4 Serial interface . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.5 Post-connection check . . . . . . . . . . . . . . . . . . . . . . 17
5 Operation . . . . . . . . . . . . . . . . . . . . . . 19
5.1 Display and operating elements . . . . . . . . . . . . . . . 19
5.2 Local operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.3 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6 Commissioning. . . . . . . . . . . . . . . . . . 27
6.1 Function check . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
6.2 Switch-on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7 Maintenance. . . . . . . . . . . . . . . . . . . . 29
7.1 Maintenance schedule . . . . . . . . . . . . . . . . . . . . . . 29
7.2 Replacing reagents . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.3 Replacing pump hoses . . . . . . . . . . . . . . . . . . . . . . 30
7.4 Replacing valve hoses . . . . . . . . . . . . . . . . . . . . . . 32
7.5 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
7.6 Placing out of service . . . . . . . . . . . . . . . . . . . . . . . 33
8 Accessories. . . . . . . . . . . . . . . . . . . . . 34
8.1 Collecting vessel . . . . . . . . . . . . . . . . . . . . . . . . . . 34
8.2 Reagents, cleaner, standard solutions . . . . . . . . . . . 34
8.3 Maintenance kit . . . . . . . . . . . . . . . . . . . . . . . . . . 34
8.4 Additional accessories . . . . . . . . . . . . . . . . . . . . . . 34
9 Trouble-shooting . . . . . . . . . . . . . . . . . 35
9.1 Trouble-shooting instructions . . . . . . . . . . . . . . . . . 35
9.2 System error messages . . . . . . . . . . . . . . . . . . . . . . 35
9.3 Process errors without messages . . . . . . . . . . . . . . 36
9.4 Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.5 Software history . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
9.6 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
9.7 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
10 Technical data . . . . . . . . . . . . . . . . . . . 39
10.1 Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
10.2 Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
10.3 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
10.4 Performance characteristics . . . . . . . . . . . . . . . . . . 40
10.5 Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
10.6 Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
10.7 Mechanical construction . . . . . . . . . . . . . . . . . . . . 41
11 Appendix. . . . . . . . . . . . . . . . . . . . . . . 42
11.1 Operating matrix . . . . . . . . . . . . . . . . . . . . . . . . . . 42
11.2 Maintenance schedule . . . . . . . . . . . . . . . . . . . . . . 44
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Safety instructions Stamolys CA71CODcr
4Endress+Hauser
1 Safety instructions
1.1 Designated use
The analyzer is a compact photometric analysis system.
In particular, CA71 is designated for:
• Monitoring sewage treatment plant outlets
• Monitoring the sewage treatment plant inlet
• Estimating the oxygen demand in the aeration basin
• Monitoring of industrial wastewater
• Monitoring the discharge of industrial wastewater
Any other use than the one described here compromises the safety of persons and the entire
measuring system and is not permitted.
The manufacturer is not liable for damage caused by improper or non-designated use.
1.2 Installation, commissioning and operation
Please note the following items:
• Installation, commissioning, operation and maintenance of the measuring system must only be
carried out by trained technical personnel.
Trained personnel must be authorized for the specified activities by the system operator.
• Electrical connection must only be carried out by a certified electrician.
• Technical personnel must have read and understood these Operating Instructions and must
adhere to them.
• Before commissioning the entire measuring point, check all the connections. Ensure that
electrical cables and hose connections are not damaged.
• Do not operate damaged products and secure them against unintentional commissioning.
Mark the damaged product as being defective.
• Measuring point faults may only be rectified by authorized and specially trained personnel.
• If faults can not be rectified, the products must be taken out of service and secured against
unintentional commissioning.
• Repairs not described in these Operating Instructions may only be carried out at the
manufacturer’s or by the service organization.
1.3 Operational safety
The analyzer has been designed and tested to the highest standards and left the factory in perfect
functioning order.
Relevant regulations and European standards have been met.
As the user, you are responsible for complying with the following safety conditions:
• Installation instructions
• Local prevailing standards and regulations.
1.4 Return
If the analyzer has to be repaired, please return it cleaned to the responsible sales center.
Please use the original packaging, if possible.
Please enclose the completed "Declaration of contamination" (copy the second last page of these
Operating Instructions) with the packaging and the transportation documents.
No repair without completed "Declaration of contamination"!

Stamolys CA71CODcr Safety instructions
Endress+Hauser 5
1.5 Safety messages and their meaning
1.5.1 Generals
The structure, signal words and safety colors of the signs comply with the specifications of
ANSI Z535.6 ("Product safety information in product manuals, instructions and other collateral
materials").
1.5.2 Special messages
Safety message structure Meaning
DANGER
!
Cause (/consequences)
Consequences if safety message
is not heeded
►Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid the situation will result in a fatal or serious
injury.
WARNING
!
Cause (/consequences)
Consequences if safety message
is not heeded
►Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid the situation can result in a fatal or serious
injury.
CAUTION
!
Cause (/consequences)
Consequences if safety message
is not heeded
►Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid this situation can result in minor or medium
injury.
NOTICE
Cause/situation
Consequences if safety message
is not heeded
►Action/note
This symbol alerts you to situations that can result in damage to
property and equipment.
Wear protective clothing
Wear a laboratory coat, protective gloves and protective goggles when working on the analyzer and
when handling chemicals.
Please observe the information on the safety data sheets with regard to the dangers posed by the
chemicals used.

Identification Stamolys CA71CODcr
6Endress+Hauser
2 Identification
2.1 Device designation
2.1.1 Nameplate
Compare the (extended) order code on the nameplate (on the analyzer) to the product structure and
your order.
You can read the following information from the nameplate:
•Ordercode
• Extended order code (=order code from the product structure)
• Serial number
•Measuringrange
• Outputs and communication
• Power supply
• Ingress protection
• Environment conditions
2.1.2 Order code and device version
To find out the version of your device, enter the order code indicated on the nameplate in the
search screen at the following address: www.products.endress.com/order-ident
2.2 Scope of delivery
The scope of delivery comprises:
• an analyzer with mains plug
• a cleaning injector
• 4 fastening clips
• a tube of silicone grease
• a Norprene hose, length 2.5 m (8.2 ft), ID 1.6 mm (1/16 inch)
• a C-flex hose, length 2.5 m (8.2 ft), ID 3.2 mm (1/8 inch)
• a C-flex hose, length 2.5 m (8.2 ft), ID 6.4 mm (1/4 inch)
• two hose fittings of each size:
– 1.6 mm x 1.6 mm (1/16 inch x 1/16 inch)
– 3.2 mm x 1.6 mm (1/8 inch x 1/16 inch)
• two T-hose fittings of each size:
– 1.6 mm x 1.6 mm x 1.6 mm (1/16 inch x 1/16 inch x 1/16 inch)
– 3.2 mm x 3.2 mm x 3.2 mm (1/8 inch x 1/8 inch x 1/8 inch)
• a hose fitting 3.2 mm x 1.6 mm (1/8 inch x 1/16 inch) for Tygon hose
• an interference suppressor for the current output
• 4 edge covers
• protective cloves
• protective glasses
•alabcoat
• a hose 4/6 mm (0.16/0.24 inch), PTFE, length 4.5 m (14.7 ft)
• a 5 l (1,32 US gal.) container for chromate containing waste
• a cover for the container, with hose connector
• a quality certificate
• Operating Instructions (English).

Stamolys CA71CODcr Identification
Endress+Hauser 7
2.3 Certificates and approvals
2.3.1 4approval
Declaration of conformity
The product meets the requirements of the harmonized European standards. It thus complies with
the legal requirements of the EC directives.
The manufacturer confirms successful testing of the product by affixing the 4symbol.
2.3.2 Manufacturer certificate
Quality certificate
With the certificate the manufacturer confirms compliance with all technical regulations and the
successful testing individually for your product.

Installation Stamolys CA71CODcr
8Endress+Hauser
3 Installation
3.1 Incoming acceptance, transport, storage
• Make sure the packaging is undamaged!
Inform the supplier about any damage to the packaging.
Keep the damaged packaging until the matter has been settled.
• Make sure the contents are undamaged!
Inform the supplier about damage to the contents. Keep the damaged products until the matter
has been settled.
• Check that the order is complete and agrees with your shipping documents.
• The packaging material used to store or to transport the product must provide shock protection
and humidity protection. The original packaging offers the best protection. Also, keep to the
approved ambient conditions (see "Technical data").
• If you have any questions, please contact your supplier or your local sales center.
3.2 Installation conditions
3.2.1 Design, dimensions
a0001355
Fig. 2: GFR version
NOTICE
Sufficient space and backwater in the outflow hose
►Allow at least 400 mm (16") under the housing as space for the waste collecting tank.
►On the left-hand side of the device, observe a lateral distance of at least 120 mm (4.7") for
mounting the collecting vessel.
►The outflow hose should not form a siphon.
60 (2.36)
100(3.94)
140 (5.51)
160 (6.30)
250 (9.84)
125(4.92)
165 (6.50)
Ø21(0.83)
Ø26/1.02
Ø21
(0.83)
119(4.69)
78(3.07)
47(1.85)
648 (25.5)
360 (14.2)
436 (17.2)
243 (9.57)
200 (7.87)
120
(4.72)
326 (12.8)
330 (13.0)
110
(4.33)
Ø27(1.06)
Ø 16 (0.63)
Ø 27 (1.06)
120(4.72)
555 (21.8)
465 (18.3)
500 (19.7)
7-11/
0.28 - 0.43
(M 6)
Ø 26(1.02)
mm (inch)
38 (1.5)

Stamolys CA71CODcr Installation
Endress+Hauser 9
3.2.2 Connecting the sample line
Adjusting the level measurement
Adjust the conductive level measurement due to the number of connected analysers.
1. In dependence of the application, mount the right adjusting pin or no adjusting pin (→å5
and →å6, position 2).
2. To receive an optimum sample volume, pull the marked pipe (position 3) downwards due to
your application (1, 2 or 3 analysers).
a0001363
Abb. 3: Collecting vessel at analyzer (optional)
1 Ventilation
2 Sample inlet from sampling
3 Collecting vessel
4 Electrical connections
5 Analyzer sample inlet
a0001346
Abb. 4: Collecting vessel dimensions
* variable, freely adjustable dimensions
6 Sampling for analyzer
7 Sample overflow
8 Analyzer outlet
Collecting vessel (at analyzer, with or without level measurement)
Connection hose ID 3.2 mm (1/8 inch)
Customer collecting vessel
Connection hose ID 1.6 mm (1/16 inch)
Max. distance from collecting vessel to analyzer 1 m (3.3 ft)
Max. height difference from collecting vessel to analyzer 0.5 m (1.6 ft)
*
*
*
130 (5.12)
17 (0.67)
10 (0.39)
145 (5.71)
79 (3.11)
120 (4.72)
140 (5.51)
115 (4.53) Ø 34/25 (1.34/0.98)
3 x Ø 28/20 (1.1/0.79)
4 x Ø 6.6 (0.26)
27 (1.06) 60 (2.36)
4 x Ø 5.5/10.4 (0.22/0.41)
Ø56(2.2)
Ø 50H7 (1.97H0.28)
M20x1.5
Ø 24 (0.94)
70 (2.76)
100 (3.9)
80(3.15)
mm (inch)
48(1.89)
42(1.65)
70(2.76)
60(2.36)

Installation Stamolys CA71CODcr
10 Endress+Hauser
3.3 Installation instructions
To install the analyzer at the intended location, proceed as follows:
1. Mount the analyzer and secure it to a vibration-free wall using screws (Ø6 mm / 0.24"). The
fastening clips on the housing make sure that the necessary distance to the wall is observed for
ventilation purposes.
For the installation dimensions, please see the previous chapter.
2. Using a spirit level, check that the cabinet is hanging straight. Only in this way can any air
bubbles present escape from the cell.
3. Fit the edge covers (with GFR housing only).
4. Lay the drain pipe for the reaction products. Where possible, use solid pipes (PE, internal
diameter 1" with 3% incline).
5. Route the drain hoses through the device floor to the outside.
6. Connect the drain hoses to the connections marked for chromate waste, rinse waste and
emergency overflow.
7. Route the drain hose for dichromate waste into the cover of the canister and make sure the
drain hose for the rinse water and that for emergency overflow end in the drain pipe previously
laid. The drain hose for emergency overflow must be open to air. Avoid siphon formation at all
times!
8. Insert the valve hoses accordingly. These were partly removed from the valves for
transportation. This prevents the hoses from sticking or pressure being applied to a point in the
hose over an extended period.
a0001367
Fig. 5: One analyser
1 M 3x12 (0.47")
2 M 3x35 (1.38")
3Mark1
a0001366
Fig. 6: Two analysers
1 M 3x12 (0.47")
2 M 3x20 (0.79")
3Mark2
a0001365
Fig. 7: Three analysers
1 M 3x12 (0.47")
3Mark3
a0012421
Fig. 8: Valves and valve hoses
1
2
3
4
5
6
7
8
9
10
11
Sample
Standard (100 or 2500 mg/l O2)
0 mg/l O2standard
Sulfuric acid R1
Dichromate solution R2
From sample/acid pump P1
Inlet to sample/acid pump P1
From reagent pump P2
Inlet, reagent pump P2
Inlet, reagent to reactor
Inlet, sample/acid to reactor
1
2
3
1
2
3
1
3

Stamolys CA71CODcr Installation
Endress+Hauser 11
9. Secure the hose boxes in the appropriate pump holders:
Sample/acid pump, left (rear position), reagent pump, right (center position). The direction of
flow of the sample and reagent must be counterclockwise.
10. Connect the sample supply.
11. Connect the tubes from canisters containing reagents andstandards to the following nozzles:
3.4 Installation examples
3.4.1 CAT430 or customer-specific ultra filtration and two CA71
analyzers
a0012351
Fig. 9: Pump 1, top view
R1 Reagent 1
a0012676
Fig. 10: Pump 2, top view
R2 Reagent 2
Canister Tube designation (mark)
Sample
Reagent 1
Reagent 2
Standard solution
Standard solution 0 mg/l O2
P
none (PTFE hose)
R2
S
0
• Permeate can contain air bubbles (CAT430)
or is free of bubbles (customer-supplied
ultrafiltration)
• Distance between the analysers as short as
possible: sampling line between T-piece and
the second analyser (→å11, item 2)
shorter than 1.5 m
• Cross-section of sampling line ID 3.2 - 4 mm
• Only one sample receiver required
NOTICE
Measuring errors due to missing sample
►Ensure that there is always sufficient sample
available for both analysers.
►Observe this when selecting maintenance
intervals for CAT430 and when setting the
buffer volume on the collecting vessel.
a0001728
Fig. 11: Installation example
1 Sample from CAT430
2 Sampling line
3 Sample receiver overflow
4T-piece
5 Collecting vessel
14
5
CA 71 CA 71
23

Installation Stamolys CA71CODcr
12 Endress+Hauser
3.4.2 Stamoclean CAT221
A complete measuring system comprises:
• a CAT221 filter system
• a collecting vessel
• a CA71xx analyser
• a sample pump or sample pressure line
• a compressor resp. compressed air supply
Optional: nitrate or SAC sensor (CNS70/CSS70) with flow assembly
3.5 Post-installation check
• After installation, check that all connections are fitted tightly and are leakage resistant.
• Ensure that the hoses cannot be removed without effort.
• Check all hoses for damage.
C07-CAT221xx-14-14-00-xx-001.EPS
Fig. 12: Complete measuring system
1
2
3
4
Backwash filter
Compressor or compressed air
Sampling pump or sample pressure line
Sample outlet
5
6
7
8
Collecting vessel (optional)
Overflow
Analyser
Sample line to the analyser
6
753
2
1
4
8

Stamolys CA71CODcr Wiring
Endress+Hauser 13
4 Wiring
WARNING
!
Device is energized
Inappropriate connection can cause serious injuries or death
►The electrical connection must only be carried out by a certified electrician.
►Technical personnel must have read and understood the instructions in this manual and must
adhere to them.
►Prior to beginning any wiring work, make sure voltage is not applied to any of the cables.
4.1 Electrical connection
4.1.1 Quick wiring guide
NOTICE
Reaching the terminal block and avoiding damage
►You have to fold out the frame of the analyzer to reach the terminal block.
►After folding the frame into position, check that all the tubes are properly secured and fit
properly into the bottles, as otherwise there is a risk of flooding or incorrect measurement.
Fold out the frame as follows:
1. Release the two bottom Allen screws (AF 6) by 3-4 rotations (→å13, item 1).
2. Unscrew the two upper Allen screws completely so that the frame folds out. In this way, you
reach the terminal block (item 2).
a0012673
Fig. 13: Folding out the frame
1 Allen screws AF 6
2Terminalstrip
NOTICE
The device does not have a mains switch
►Therefore, it is advantageous to have a fused socket near to the device.

Wiring Stamolys CA71CODcr
14 Endress+Hauser
4.1.2 Terminal assignment
CAUTION
!
Shown diagram (→å14) is an example
The terminal assignment and cable colors can deviate from the actual assignment and colors!
►Only use the terminal assignment of the sticker in the device (→å15) to connect your
analyzer!
a0012456
Fig. 14: Example of the connection sticker
a0001372
Fig. 15: Analyzer from top (open version resp. folded out)
1 Connection department sticker
2 Printed circuit board with terminal strip
3 Backside of the analyzer
7
6
5
4
L2
L2
N
L1
L1
PE
PE
ACMOTOR
ACMOTOR
F2
F2
F1
F1
ACMotor
T0.1A
ACMotor
T0.1A
Elektronik
Electronics
T0.5A
Elektronik
Electronics
T0.5A
3
2
1
L
N
PE
PE
NETZ
MAINS
NETZ
MAINS
Klemmenführen auch bei ausgeschaltetem Gerät Spannung !!!
Klemmenführen auch bei ausgeschaltetem Gerät Spannung !!!
Terminalsvoltage to ground even when the unit is switched off !!!
Terminalsvoltage to ground even when the unit is switched off !!!
BU
BU
YE
YE
RD
RD
GN/YE
GN/YE
80
80
75
75
70
70
63
63
57
57
39
39
27
27
21
21
15
15
64
64
58
58
40
40
28
28
22
22
16
16
65
65
79
79
74
74
69
69
62
62
56
56
38
38
26
26
20
20
14
14
78
78
73
73
68
68
61
61
55
55
37
37
25
25
19
19
13
13
77
77
72
72
67
67
60
60
54
54
36
36
24
24
18
18
12
12
76
76
71
71
66
66
59
59
53
53
35
35
23
23
17
17
11
11
RELAIS/ Relay:
max.Last / load: 2A bei / at 115/230VAC, 1A bei / at 30V DC
RELAIS/Relay:
max.Last/load: 2A bei / at 115/230V AC, 1A bei/at 30V DC
OR
OR
BK
BK
RD
RD
YE
YE
V3
V3
V2
V2
V1
V1
0V
0V
keineProbe
Nosample
keineProbe
Nosample
0V
0V
0V
0V
fx
fx
fx
fx
n.b.
n.c.
n.b.
n.c.
-17V
-17V
+17V
+17V
Schirm
Screen
Schirm
Screen
MP5
MP5
MP6
MP6
Schirm
Shield
Schirm
Shield
Reserve
Reserve
Mess2
Meas2
Mess2
Meas2
+24V
+24V
I2+
I2+
I1+
I1+
I2-
I2-
I1-
I1-
Photometer
Photometer
SCHRITTMOTOR
SCHRITTMOTOR
LECKF.
LECKF.
ALARM2
ALARM2
OPTION
OPTION
STÖRUNG
STÖRUNG
ALARM1
ALARM1
F5
F5
F4
F4
M0.2A
M0.2 A
M0.2A
M0.2 A
COM
NC
NO
COM
NC
NO
Kanal1 Kanal 2
Channel2
ALARM2
ALARM2
ALARM1
ALARM1
Photometer+17V
Photometer+17V
Photometer-17V
Photometer-17V
n.b.
n.c.
n.b.
n.c.
BN
BN
WH
WH
YE
YE
GY
GY
BK
BK
GN
GN
BK
BK
YE
YE
GN
GN
BU
BU
BN
BN
AnalogOut
0/4-20mA
STEPMOTOR
STEPMOTOR
LEAKS.
LEAKS.
0V
0V
WH
Channel1
ERROR
ERROR
V4
V4
31
31
30
30
29
29
0V
0V
n.b.
n.c.
n.b.
n.c.
Status
Status
Schirm
Shield
Schirm
Shield
Schirm
Shield
Schirm
Shield
Schirm
Shield
Schirm
Shield
Schirm
Shield
Schirm
Shield
1
23

Stamolys CA71CODcr Wiring
Endress+Hauser 15
NOTICE
Terms for special terminals
►Alarm values 1 and 2 do not need to be connected if the PLC sets its own alarm values at the
analog output.
►When using a sample conditioning system: Connect terminals 57 and 53 on the analyzer to the
corresponding terminals on the sample conditioning system. For the allocation of these terminals
see the sample conditioning system operating instructions.
►If there is a 24 V voltage at terminal 57, the analyzer will not begin measurement (sample not
ready). To start measurement, the voltage must stay at 0 V for at least 5 seconds.
►All external relay contacts have to be connected to 230 V.
4.2 Signal connection
4.2.1 Screening of the analog outputs
The interference suppressor attenuates electromagnetic effects on control, power and signal lines.
After the connection of the data transfer cables clip the interference suppressor (in scope of delivery)
on the cable cores (not on the outer insulation of the cable!). Place the cable screen out of the
interference suppressor and connect it to PE (brass screw with bolt, top right in the connection
compartment) (→å16).
Function Designation Terminal one channel
Mains
L3
N2
PE 1
Alarm value 1, channel 1
COM 25
NC 24
NO 23
Alarm value 2, channel 1
COM 28
NC 27
NO 26
Fault
COM 19
NC 18
NO 17
Reserve (unassigned terminals)
COM 22
NC 21
NO 20
Analog output 1
0/4 ... 20 mA
+36
–35
Screen PE1
Sample conditioning
remote control
Input 57
0 V 53

Wiring Stamolys CA71CODcr
16 Endress+Hauser
4.2.2 One-channel version
4.3 Switching contacts
Condition fulfilled means:
• AV 1: concentration > Alarm value 1
• AV 2: concentration > Alarm value 2
• Fault: error occurred
Contacts AV 1, AV 2 and fault are only affected during automatic operation.
a0001746
Fig. 16: Interference protection of the signal cable
1 Cable screen (to PE )
2 Signal cable
3 Interference suppressor
4 Cable cores of the signal cable
Connection Designation Function
Signal inputs
Leak Liquid has collected in the drip pan
No sample No sample available, measurement is not started, display
flashes
Signal outputs
AV 1 Alarm value 1 exceeded or undershot
AV 2 Alarm value 2 exceeded or undershot
Fault Retrieves error message using operation menu
Measurement end Displays "Measurement finished" (5 s)
Analog output l-1 channel 1 0 or 4 mA = measuring range start
20 mA = measuring range end
Connection Terminal connection for
condition fulfilled
Terminal connection for
condition not fulfilled
Terminal connection for
power off
AV 1 A:
R:
25
25
-
-
23
24
A:
R:
25
25
-
-
24
23
25 - 24
AV 2 A:
R:
28
28
-
-
26
27
A:
R:
28
28
-
-
27
26
28 - 27
Fault A:
R:
19
19
-
-
17
18
A:
R:
19
19
-
-
18
17
19 - 18
Unassigned 22
16
13
-
-
-
20
14
11
22
16
13
-
-
-
21
15
12
22
16
13
-
-
-
21
15
12
A = NO current configured
R = NC current configured
3
4

Stamolys CA71CODcr Wiring
Endress+Hauser 17
4.4 Serial interface
The results (measured value+unit of measure+CR) are output in the "Data memory Measured
values" menu.
The calibration results (measured value+unit of measure+CR) are output in the "Data memory-
Calibration factors" menu.
A null modem cable is required (not a crossed one).
The analyzer does not have to be configured for the interface.
The following commands can be sent from the PC, in order to read out data:
• "D" = Data memory-Measured values
• "C" = Data memory-Calibration factors
• "S" = Setup (parameter entry, configuration...)
• "F" = Frequency (current)
4.5 Post-connection check
Carry out the following checks after electrical connection:
RS 232 of CA71 COM 1/2 at PC
SUB-D, nine-pin Function Function SUB-D, nine-pin
3TxD RxD2
2RxD TxD3
8 CTS RTS 7
CTS 8
5GND GND5
Software protocol:
Output format:
9600 baud, 8 data bits, 1 stop bit, no parity (9600, N, 8, 1)
ASCII
Device status and specifications Note
Is the analyser or cable externally undamaged? Visual inspection
Electrical connection Note
Does the supply voltage correspond to the data on the nameplate? 230 V AC / 50 Hz
Are current outputs screened and connected?
Are the mounted cables relieved of tension?
Cable type properly disconnected? Guide power supply and signal lines
separately over the entire travel distance.
Separate cable channels are ideal.
Cable routing without scuffing or cross-overs?
Are power supply and signal lines connected correctly according to wiring
diagram?
Are all screw terminals tightened?
Are all cable entries mounted, tightened and leak-resistant?
Interference suppressor at the analogue output?
Current output simulation See procedure below

Wiring Stamolys CA71CODcr
18 Endress+Hauser
Current output simulation:
1. Hold both arrow keys down (see "Display and operating elements" chapter) and connect the
analyser to the mains or switch the mains switch on (if available). Wait until the display "0 mA"
appears.
2. Check on your PLC, PCS or you data logger whether the current value is the same.
3. Press the Fkey. Browse to the next current values (4, 12, 20 mA, depending on the setting).
4. Check that the respective current values are also on your PLC, PCS or your data logger.
5. If the values are not there:
a. Check the terminal assignment for analogue output 1 or 2.
b. Disconnect the analogue outputs from your PLC, PLS or your data logger and repeat steps
14 with the restriction that you measure the current values at the terminals of the analyser
and not at the PLC, SPL or data logger.
If these current values are correct, please check your PLC, SPL, the data logger or the
electrical cables.

Stamolys CA71CODcr Operation
Endress+Hauser 19
5Operation
5.1 Display and operating elements
a0012457
Fig. 17: Display and operating elements
1 LED (measured value)
2 LC display (status)
3 Serial interface RS 232
4 Operating keys and control LEDs
5 Display of the heating element
5.2 Local operation
The operating keys and the integrated indicator LEDs have the following functions:
RS 232
M
CE
EK
1
53
4
2
Key Key function Indicator LED function
H– “Auto measuring” option
– back to the main menu from all sub-menus
Alarm value 1 exceeded
K– backwards in the sub-menu
(horizontal, see Appendix)
Alarm value 2 exceeded
V– backwards in the main menu (vertical)
–increasevalue
Measuring range exceeded
W– forwards in the main menu (vertical)
–reducevalue
Measuring range undershot
F– select option
– adopt value, forwards in the sub-menu (horizontal)1)
1) By pressing the Vor Wand the Fkey simultaneously, you can set the digit after the decimal point.
Retrieve error message
J– selection in the sub-menu Unassigned

Operation Stamolys CA71CODcr
20 Endress+Hauser
5.2.1 Main menu
Access the main menu by holding down the Hkey until “AUTO MEASURING” is displayed.
For the main menu options and information about them, please see the following table.
5.2.2 AUTO MEASURING
The actions "calibration" and "measuring" are triggered by time-control.
The respective action is displayed in the LC display. The most recently registered concentration
value is displayed until the end of the next measurement.
Otherwise, "wait" is displayed when
• the time of the first measurement has not yet been reached or
• the measuring interval has not yet expired.
"Measuring" flashes when the analyzer is ready for the next measurement but has not yet
received the enable signal from the sample collector or the sample conditioning unit.
Selection Display Info
AUTO MEASURING Calibration, measurement time-controlled actions
PARAMETER ENTRY Default settings for measuring ranges, alarm values,
calibration
CONFIGURATION
Basic settings such as parameters, measuring units,
arrangement of analog outputs and alarm values, date,
time, offset values
LANGUAGE Selecting menu language
ERROR DISPLAY Displaying error messages
MAINTENANCE For manually emptying the reactor and waste container
and level of the waste container
SERVICE Manually switching valves and pumps
DATA MEMORY Last 1024 measured values
MAINTENANCE
DATA MEMORY