Endress+Hauser Oxymax COS22D Especificaciones técnicas
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Brief Operating Instructions
Oxymax COS22D,
Oxymax COS22
Sensor for measuring dissolved oxygen
0
These instructions are Brief Operating Instructions; they are
not a substitute for the Operating Instructions pertaining to
the device.
Detailed information on the device can be found in the
Operating Instructions and in the other documentation
available at:
• www.endress.com/device-viewer
• Smart phone/tablet: Endress+Hauser Operations App
KA00446C/07/EN/07.19
71436872
2019-03-31
Oxymax COS22D, Oxymax COS22
2 Endress+Hauser
TAG No.: XXX000
Ser. No.: X000X000000
Order code 00X00-XXXX0XX0XXX
www.endress.com/deviceviewer Endress+Hauser Operations App
Serial number
A0023555
Oxymax COS22D, Oxymax COS22
Endress+Hauser 3
Table of contents Oxymax COS22D, Oxymax COS22
4 Endress+Hauser
Table of contents
1 About this document .............................................................. 5
1.1 Warnings ............................................................................ 5
1.2 Symbols ............................................................................. 5
2 Basic safety instructions .......................................................... 6
2.1 Requirements for the personnel ............................................................ 6
2.2 Designated use ........................................................................ 6
2.3 Workplace safety ...................................................................... 7
2.4 Operational safety ......................................................................7
2.5 Product safety ......................................................................... 7
3 Certificates and approvals ....................................................... 10
3.1 Declaration of Conformity ............................................................... 10
3.2 Ex approvals ......................................................................... 10
3.3 Certification body ..................................................................... 10
3.4 Material certificates ................................................................... 11
3.5 EHEDG ............................................................................. 11
4 Installation ...................................................................... 12
4.1 Installation conditions .................................................................. 12
4.2 Mounting the sensor ................................................................... 13
4.3 Post-installation check ................................................................. 13
5 Electrical connection ............................................................ 14
5.1 Quick wiring guide (COS22D-BA/NA only) ...................................................14
5.2 Connecting the sensor (COS22D) .......................................................... 15
5.3 Connecting the sensor (COS22) ........................................................... 15
5.4 Ensuring the degree of protection ......................................................... 16
5.5 Post-connection check ..................................................................16
6 Commissioning .................................................................. 17
6.1 Function check ....................................................................... 17
6.2 Sensor polarization .................................................................... 17
6.3 Sensor calibration ..................................................................... 19
Oxymax COS22D, Oxymax COS22 About this document
Endress+Hauser 5
1 About this document
1.1 Warnings
Structure of information Meaning
LDANGER
Causes (/consequences)
If necessary, Consequences of non-
compliance (if applicable)
‣Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid the dangerous situation will result in a fatal or serious injury.
LWARNING
Causes (/consequences)
If necessary, Consequences of non-
compliance (if applicable)
‣Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid the dangerous situation can result in a fatal or serious injury.
LCAUTION
Causes (/consequences)
If necessary, Consequences of non-
compliance (if applicable)
‣Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid this situation can result in minor or more serious injuries.
NOTICE
Cause/situation
If necessary, Consequences of non-
compliance (if applicable)
‣Action/note
This symbol alerts you to situations which may result in damage to property.
1.2 Symbols
Symbol Meaning
Additional information, tips
Permitted or recommended
Not permitted or not recommended
Reference to device documentation
Reference to page
Reference to graphic
Result of a step
Basic safety instructions Oxymax COS22D, Oxymax COS22
6 Endress+Hauser
2 Basic safety instructions
2.1 Requirements for the personnel
• Installation, commissioning, operation and maintenance of the measuring system may be
carried out only by specially trained technical personnel.
• The technical personnel must be authorized by the plant operator to carry out the specified
activities.
• The electrical connection may be performed only by an electrical technician.
• The technical personnel must have read and understood these Operating Instructions and
must follow the instructions contained therein.
• Faults at the measuring point may only be rectified by authorized and specially trained
personnel.
Repairs not described in the Operating Instructions provided must be carried out only
directly at the manufacturer's site or by the service organization.
2.2 Designated use
The sensor is designed for the continuous measurement of dissolved oxygen in water.
The specific suitability depends on the sensor version:
• COS22-**1***** (standard, measuring range 0.01 to 60 mg/l)
COS22D-**1***** (standard, measuring range 0.01 to 60 mg/l)
• Measuring, monitoring and regulating the oxygen content in fermenters
• Monitoring the oxygen content in biotechnology facilities
• COS22-**3***** (trace measurement, measuring range 0.001 to 10 mg/l, preferred
operational range 0.001 to 2 mg/l), also suitable for high CO2 partial pressure
COS22D-**3/4***** (trace measurement, measuring range 0.001 to 10 mg/l, preferred
operational range 0.001 to 2 mg/l), also suitable for high CO2 partial pressure
• Monitoring inertization equipment in the food industry
• Monitoring the residual oxygen content in carbonated fluids of the beverage industry
• Trace measurement in industrial applications such as inertizations
• Monitoring the residual oxygen content in boiler feedwater
• Monitoring, measuring and regulating the oxygen content in chemical processes
NOTICE
Molecular hydrogen
Hydrogen causes sensitivity in other substances and leads to false low readings or, at the
worst, total failure of the sensor.
‣Only use the COS22-**1/3***** or COS22D-**1/3***** sensor in media free of
hydrogen.
‣Use the COS22D-**4***** sensor in media containing hydrogen.
For non-contact digital data transmission, the COS22D sensor must be connected to the
digital input of the Liquiline transmitter using the CYK10 measuring cable.
Use of the device for any purpose other than that described, poses a threat to the safety of
people and of the entire measuring system and is therefore not permitted.
The manufacturer is not liable for damage caused by improper or non-designated use.
Oxymax COS22D, Oxymax COS22 Basic safety instructions
Endress+Hauser 7
2.3 Workplace safety
As the user, you are responsible for complying with the following safety conditions:
• Installation guidelines
• Local standards and regulations
• Regulations for explosion protection
Electromagnetic compatibility
• The product has been tested for electromagnetic compatibility in accordance with the
applicable European standards for industrial applications.
• The electromagnetic compatibility indicated applies only to a product that has been
connected in accordance with these Operating Instructions.
2.4 Operational safety
Before commissioning the entire measuring point:
1. Verify that all connections are correct.
2. Ensure that electrical cables and hose connections are undamaged.
3. Do not operate damaged products, and protect them against unintentional operation.
4. Label damaged products as defective.
During operation:
‣If faults cannot be rectified:
products must be taken out of service and protected against unintentional operation.
NOTICE
Non-designated use
Incorrect measurements, malfunctions and even measuring point failure could result
‣Only use the product in accordance with the product specifications.
‣Pay particular attention to the technical data on the nameplate.
2.5 Product safety
The product is designed to meet state-of-the-art safety requirements, has been tested, and
left the factory in a condition in which it is safe to operate. The relevant regulations and
European standards have been observed.
2.5.1 State of the art
The product is designed to meet state-of-the-art safety requirements, has been tested, and
left the factory in a condition in which it is safe to operate. The relevant regulations and
European standards have been observed.
Basic safety instructions Oxymax COS22D, Oxymax COS22
8 Endress+Hauser
2.5.2 Electrical equipment in hazardous areas
For all approvals
• To avoid incendive sparking, you must install the titanium hazardous area versions
COS22D-BA***D*3, COS22D-GC***D*3, COS22D-8A***D*3, COS22D-TA***D*3 and
COS22D-NA***D*3 in such a way that they are protected against impact and friction.
• When transporting, installing and performing maintenance in the hazardous area, you
must also avoid sparks resulting from impact and friction on the sensor shaft or membrane
body.
• The use of these versions in liquid media with solid particles must be avoided.
ATEX II 1G / IECEx Ex ia IIC T3/T4/T6 Ga
The Memosens inductive sensor cable connection system, consisting of:
• oxygen sensor Oxymax COS22D-BA*****3 and
• measuring cable CYK10-G***
is suitable for use in hazardous areas according to type examination certificate BVS 04 ATEX E
121 X. The corresponding EU Declaration of Conformity is part of this document.
• The certified Oxymax COS22D-BA*****3 oxygen sensor, in conjunction with the CYK10-
G*** measuring cable, may be connected only to certified, intrinsically safe, digital sensor
circuits of the Liquiline M CM42-OE/F/I********* transmitter. The electrical connection
must be made according to the wiring diagram.
• Oxygen sensors for use in the Ex area have a special conductive O-ring. The electrical
connection of the metallic sensor shaft to the conductive mounting location (such as a
metallic assembly) takes place via the O-ring.
• You must connect the assembly or the installation location to ground according to the Ex
guidelines.
• The sensors must not be operated under electrostatically critical process conditions. Avoid
strong steam or dust currents that act directly on the connection system.
• Hazardous area versions of digital sensors with Memosens technology are indicated by a
red-orange ring in the plug-in head.
• The maximum permitted cable length between the sensor and transmitter is 100 m (330
ft).
NEPSI Ex ia IIC T3/T4/T6 Ga
The Memosens inductive sensor cable connection system, consisting of:
• oxygen sensor Oxymax COS22D-NA*****3 and
• measuring cable CYK10-G***
is approved for use in explosive atmospheres in accordance with the National supervision and
inspection center for Explosion protection and Safety of Instrumentation (NEPSI) in China.
The certified oxygen sensor Oxymax COS22D-NA*****3 may only be connected to the
following certified, intrinsically safe, digital sensor circuits in conjunction with the measuring
Oxymax COS22D, Oxymax COS22 Basic safety instructions
Endress+Hauser 9
cable CYK10-G***, or a Memosens cable with an identical structure both in terms of
hardware and function:
• Liquiline CM42-OJ*********
• Alternatively to an approved, intrinsically safe Memosens sensor output that supplies the
following values at the very maximum:
Parameter set 1 Parameter set 2
U0 = 5.1 V
I0 = 130 mA
P0 = 166 mW (linear output characteristic)
Ci = 15 µF
Li = 95 µH
U0 = 5.04 V
I0 = 80 mA
P0 = 112 mW (trapezoidal output characteristic)
Ci = 14.1 µF
Li = 237.2 µH
• The electrical connection must be made according to the wiring diagram.
• Oxygen sensors for use in the Ex area have a special conductive O-ring. The electrical
connection of the metallic sensor shaft to the conductive mounting location (such as a
metallic assembly) takes place via the O-ring.
• You must connect the assembly or the installation location to ground according to the Ex
guidelines.
• If the CYK10-G*** cable is installed with its terminal head in Ex zone 0, the cable must be
protected against electrostatic charge.
• The user may not change the configuration. Only in this way will the explosion protection of
the unit remain intact. Every change puts safety at risk.
• The sensors must not be operated under electrostatically critical process conditions. Avoid
strong steam or dust currents that act directly on the connection system. The metal sensor
shaft must be installed at the mounting location in such a way that it is electrostatically
conductive (< 1 MΩ).
• To mount, use and maintain the product, you must follow the information in the Operating
Instructions and the following standards:
• GB50257 -1996 "Code for construction and acceptance of electric device for explosion
atmospheres and fire hazard electrical equipment installation engineering"
• GB3836.13-1997 "Electrical apparatus for explosive gas atmospheres Part 13: Repair and
overhaul for apparatus used in explosive gas atmospheres"
• GB3836.15-2000 "Electrical apparatus for explosive gas atmospheres- Part 15: Electrical
installations in hazardous area (other than mines)"
• GB3836.16-2006 "Electrical apparatus for explosive gas atmospheres- Part 16: Inspection
and maintenance of electrical installation (other than mines)"
• Hazardous area versions of digital sensors with Memosens technology are indicated by a
red-orange ring in the plug-in head.
• The maximum permitted cable length between the sensor and transmitter is 100 m (330
ft).
FM/CSA IS/NI Cl.1 Div.1 GP: A-D
Observe the documentation and the control drawings of the transmitter.
Certificates and approvals Oxymax COS22D, Oxymax COS22
10 Endress+Hauser
Temperature classes ATEX, IECEx, FM/CSA and NEPSI
Temperature class
T3 T4 T6
Ambient temperature Ta–5 to +135 °C –5 to +120 °C –5 to +70 °C
Reference temperature Tref +25 °C
TIIS Ex ib IIC T4
The certified oxygen sensor Oxymax COS22D-TA*****3 may only be connected to the
certified, intrinsically safe, digital sensor circuit of the transmitter Liquiline M CM42-
OT********* in conjunction with the measuring cable CYK10-U**1.
Temperature classes TIIS
T4
Ambient temperature Ta–5 to +60 °C
Reference temperature T ref +25 °C
3 Certificates and approvals
3.1 Declaration of Conformity
The product meets the requirements of the harmonized European standards. As such, it
complies with the legal specifications of the EU directives. The manufacturer confirms
successful testing of the product by affixing to it the mark.
3.2 Ex approvals
Version COS22D-BA
ATEX II 1G / IECEx Ex ia IIC T3/T4/T6 Ga
Version COS22D-8A
FM/CSA IS/NI Cl.1 Div.1 GP: A-D
Version COS22D-NA
NEPSI Ex ia IIC T3/T4/T6 Ga
Version COS22D-TA
TIIS Ex ib IIC T4
3.3 Certification body
DEKRA EXAM GmbH
Bochum
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2
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