Endress+Hauser Memosens COL37E User manual

Products Solutions Services
Operating Instructions
Memosens COL37E
Agile, optical oxygen sensor for laboratory
measurements and random sampling in the field
Digital with Memosens 2.0 technology
BA02236C/07/EN/01.21-00
71558605
2021-12-10

Memosens COL37E Table of contents
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Table of contents
1 About this document ........... 4
1.1 Warnings ........................... 4
1.2 Symbols used ........................ 4
1.3 Documentation ...................... 5
2 Basic safety instructions ....... 5
2.1 Requirements for the personnel ........ 5
2.2 Intended use ........................ 5
2.3 Workplace safety .................... 6
2.4 Operational safety ................... 6
2.5 Product safety ....................... 6
3 Incoming acceptance and
product identification .......... 7
3.1 Incoming acceptance ................. 7
3.2 Product identification ................. 7
3.3 Scope of delivery ..................... 8
4 Electrical connection ........... 8
4.1 Connection to handheld device ......... 8
4.2 Connection to handheld device via M12
cable ............................... 9
5 Commissioning ................. 9
5.1 Calibration and adjustment ............ 9
6 Maintenance .................. 11
6.1 Maintenance tasks .................. 11
7 Repair .......................... 12
7.1 General information ................. 12
7.2 Return ............................ 12
7.3 Spare parts and consumables ......... 12
7.4 Disposal ........................... 12
8 Accessories .................... 13
8.1 Device-specific accessories ............ 13
9 Technical data ................. 14
9.1 Input .............................. 14
9.2 Performance characteristics .......... 14
9.3 Environment ....................... 15
9.4 Process ............................ 15
9.5 Mechanical construction ............. 15

About this document Memosens COL37E
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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 used
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

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1.2.1 Symbols on the device
Symbol Meaning
Reference to device documentation
Do not dispose of products bearing this marking as unsorted municipal waste.
Instead, return them to the manufacturer for disposal under the applicable
conditions.
1.3 Documentation
The following manuals, which complement these Operating Instructions, can be found on the
product pages on the Internet:
Technical Information Memosens COL37E, TI01678C
Operating Instructions Liquiline Mobile CML18, BA02002C
Operating Instructions Memobase Plus CYZ71D, BA00502C
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 Intended use
The COL37E oxygen sensor is designed for short-term measurement in laboratory or field
environments.
The oxygen sensor is not intended for continuous measurements and for fixed installation in
the process or in assemblies.

Basic safety instructions Memosens COL37E
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NOTICE
Halogen-containing solvents, ketones and toluene
Halogen-containing solvents (dichloromethane, chloroform), ketones (e.g. acetone,
pentanone) and toluene have a cross-sensitive effect and result in decreased measured values
or, at worst, in the complete failure of the sensor!
‣Use the sensor only in media that are free from halogens, ketones and toluene.
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.
2.3 Workplace safety
As the user, you are responsible for complying with the following safety conditions:
• Installation specifications
• Local standards and regulations
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.
2.5 Product safety
2.5.1 State-of-the-art technology
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
international standards have been observed.

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3 Incoming acceptance and product identification
3.1 Incoming acceptance
1. Verify that the packaging is undamaged.
 Notify the supplier of any damage to the packaging.
Keep the damaged packaging until the issue has been resolved.
2. Verify that the contents are undamaged.
 Notify the supplier of any damage to the delivery contents.
Keep the damaged goods until the issue has been resolved.
3. Check that the delivery is complete and nothing is missing.
 Compare the shipping documents with your order.
4. Pack the product for storage and transportation in such a way that it is protected
against impact and moisture.
 The original packaging offers the best protection.
Make sure to comply with the permitted ambient conditions.
If you have any questions, please contact your supplier or your local Sales Center.
3.2 Product identification
3.2.1 Nameplate
The following information about the device appears on the nameplate:
• Manufacturer identification
• Order ID
• Extended order code
• Serial number
‣Compare the information on the nameplate with the order.
3.2.2 Product identification
Product page
www.endress.com/col37e
Interpreting the order code
The order code and serial number of your product can be found in the following locations:
• On the nameplate
• In the delivery papers
Obtaining information on the product
1. Open www.endress.com.
2. Call up the site search (magnifying glass).
3. Enter a valid serial number.

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4. Search.
 The product structure is displayed in a popup window.
5. Click on the product image in the popup window.
 A new window (Device Viewer) opens. All of the information relating to your
device is displayed in this window as well as the product documentation.
3.2.3 Manufacturer address
Endress+Hauser Conducta GmbH+Co. KG
Dieselstraße 24
D-70839 Gerlingen
3.3 Scope of delivery
The scope of delivery comprises:
• 1 sensor, version as ordered
• 1 x Operating Instructions
4 Electrical connection
4.1 Connection to handheld device
A0041682
 1 Sensor connection
1. Insert the sensor into the Memosens connection.
2. Turn the plug-in head of the sensor until it locks into place.

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4.2 Connection to handheld device via M12 cable
1.
A0041681
Connect the M12 cable to the handheld device.
2.
A0041680
Insert the sensor into the Memosens connection of the M12 cable and lock into place.
5 Commissioning
5.1 Calibration and adjustment
The sensor is calibrated and adjusted in the factory prior to delivery and is therefore ready for
immediate use.

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Refer to Operating Instructions BA02002C on the product page (www.endress.com/cml18)
for the measurement, calibration and adjustment of the sensor on the Liquiline Mobile
CML18.
Recommended procedure after replacing a spot cap
First calibrate and adjust the sensor at the zero point and then in the presence of oxygen.
5.1.1 Zero point calibration
The zero point is not so important when working with relatively high concentrations of
oxygen. In these types of application, a zero point calibration is required only after the spot
cap has been replaced.
However, once oxygen sensors are used at low concentrations and in the trace range, they
must also be calibrated at the zero point.
Zero point calibrations are demanding as the ambient medium - usually air - already has a
high oxygen content. This oxygen must be excluded for zero point calibration of the sensor.
A calibration with the COY8 zero-point gel can be used for this purpose:
The COY8 oxygen-depleting gel creates an oxygen-free medium for zero point calibration.
Prior to sensor zero point calibration, check the following:
• Is the sensor signal stable?
• Has the adjustment time of 30 min - 40 min for the COY8 zero-point gel elapsed?
• Is the value displayed plausible?
1. If the sensor signal is stable:
Calibrate the zero point.
2. If necessary:
Adjust the sensor by accepting the calibration data.
If the oxygen sensor is calibrated too early, this can result in an incorrect zero point.
Rule of thumb: operate the sensor for at least 30 min in the zero-point gel.
Follow the instructions in the kit documentation enclosed with the COY8 zero-point gel.
5.1.2 Calibration in air with 100% rH
1. Remove the sensor from the medium.
2. Clean the outside of the sensor carefully with a damp cloth.
3. Suspend the sensor just above the surface of the water. Use the calibration bottle
provided for this purpose.
Do not immerse the sensor.
4. Allow a temperature compensation time of approx. 20 minutes for the sensor in the
ambient air. Make sure that the sensor is not exposed to any direct ambient effects
(direct sunlight, drafts) during this time.