Endress+Hauser Liquitrend QMW43 User manual

Products Solutions Services
Operating Instructions
Liquitrend QMW43
Conductive and capacitive measurement of conductivity
and thickness of buildup
BA01925F/00/EN/01.18
71461869
2019-12-18

Liquitrend QMW43
2 Endress+Hauser
Order code:
Ext. ord. cd.:
Ser. no.:
www.endress.com/deviceviewer Endress+Hauser
Operations App
XXXXXXXXXXXX
XXXXX-XXXXXX
XXX.XXXX.XX
Serial number
1.
3.
2.
A0023555

Liquitrend QMW43 Table of contents
Endress+Hauser 3
Table of contents
1 About this document ................ 4
1.1 Symbols .............................. 4
1.2 Terms and abbreviations ................. 5
1.3 Documentation ........................ 6
1.4 Registered trademarks ................... 6
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
2.6 IT security ............................ 7
3 Product description ................. 7
3.1 Product design ......................... 8
4 Incoming acceptance and product
identification ....................... 8
4.1 Incoming acceptance .................... 8
4.2 Product identification .................... 8
4.3 Manufacturer address ................... 9
4.4 Nameplate ........................... 9
4.5 Storage, transport ..................... 10
5 Installation ....................... 10
5.1 Installation conditions .................. 10
5.2 Mounting the measuring device ........... 11
5.3 Post-installation check .................. 12
6 Electrical connection .............. 12
6.1 Connecting the device .................. 12
6.2 Post-connection check .................. 13
7 Operation options ................. 13
7.1 IO-Link information .................... 13
7.2 IO-Link download ..................... 13
7.3 Structure of the operating menu ........... 14
8 System integration ................ 14
8.1 Process data ......................... 14
8.2 Reading out and writing device data (ISDU –
Indexed Service Data Unit) ............... 14
9 Commissioning .................... 16
9.1 Function check ....................... 16
9.2 Light signals (LEDs) .................... 16
9.3 Changing device parameters via IO-Link ..... 17
10 Operation ......................... 17
10.1 Measurement of buildup in pipes or tanks ... 17
11 Diagnostics and troubleshooting ... 19
11.1 Error indication ....................... 19
11.2 General troubleshooting ................. 19
11.3 Diagnostic information via light emitting
diodes .............................. 19
11.4 Diagnostic events ...................... 21
11.5 Behavior of the device in the event of a fault .. 23
11.6 Resetting the measuring device ........... 23
12 Maintenance ...................... 24
12.1 Cleaning ............................ 24
13 Repair ............................ 24
13.1 Return .............................. 24
13.2 Disposal ............................ 25
14 Accessories ....................... 25
14.1 Hexagon tubular socket wrench 32 mm ..... 25
14.2 Plug-in jack, elbowed 90° ................ 25
14.3 Plug-in jack, straight ................... 26
14.4 Process adapter M24 thread .............. 26
14.5 Weld-in adapter ...................... 27
14.6 Grooved union nut DIN11851 ............ 27
15 Overview of the operating menu .... 28
16 Description of Device Parameters ... 29
16.1 Identification ......................... 29
16.2 Diagnosis ........................... 29
16.3 Parameters .......................... 31
17 Technical data .................... 36
17.1 Input ............................... 36
17.2 Output ............................. 36
17.3 Performance characteristics .............. 37
17.4 Environment ......................... 39
17.5 Process ............................. 40
Index .................................. 41

About this document Liquitrend QMW43
4 Endress+Hauser
1 About this document
1.1 Symbols
1.1.1 Document function
These Operating Instructions provide all of the information that is required in various
phases of the life cycle of the device including:
• Product identification
• Incoming acceptance
• Storage
• Installation
• Connection
• Operation
• Commissioning
• Troubleshooting
• Maintenance
• Disposal
1.1.2 Safety symbols
CAUTION
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minor or medium injury.
DANGER
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
serious or fatal injury.
NOTICE
This symbol contains information on procedures and other facts which do not result in
personal injury.
WARNING
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
serious or fatal injury.
1.1.3 Tool symbols
Open-ended wrench
1.1.4 Symbols for certain types of information and graphics
Permitted
Procedures, processes or actions that are permitted.
Preferred
Procedures, processes or actions that are preferred
Forbidden
Procedures, processes or actions that are forbidden.
Tip
Indicates additional information

Liquitrend QMW43 About this document
Endress+Hauser 5
Notice or individual step to be observed
Result of a step
1, 2, 3, ...
Item numbers
A, B, C, ...
Views
Safety instructions
Observe the safety instructions contained in the associated Operating Instructions
Connecting cable immunity to temperature change
Specifies the minimum value of the temperature resistance of the connection cables
1.2 Terms and abbreviations
0 mS/cm
0
LRV URV
1
2
100 mS/cm
A0041153
 1 Measuring range, span (conductivity)
1 Maximum conductivity measuring range
2 Adjusted span
Maximum conductivity measuring range
Span between 0 to 100 for editable range.
Adjusted span
Span between LRV (Lower Range Value) and URV (Upper Range Value)
The difference between the LRV and URV must be at least 1 mS/cm.
Factory setting: 0 to 100 mS/cm
Other configured spans can be ordered as customized spans.
Other abbreviations
UHT: Ultra-High Temperature
CIP: Cleaning in Place

Basic safety instructions Liquitrend QMW43
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1.3 Documentation
For an overview of the scope of the associated Technical Documentation, refer to the
following:
•W@M Device Viewer (www.endress.com/deviceviewer): Enter the serial number
from nameplate
•Endress+Hauser Operations App: Enter the serial number from the nameplate or
scan the 2D matrix code (QR code) on the nameplate
1.4 Registered trademarks
is a registered trademark of the IO-Link company group.
2 Basic safety instructions
2.1 Requirements for the personnel
The personnel must fulfill the following requirements to carry out the necessary tasks,
e. g., commissioning and maintenance:
‣Trained, qualified specialists must have a relevant qualification for the specific function
and task
‣Are authorized by the plant owner/operator
‣Are familiar with federal/national regulations
‣Must have read and understood the instructions in the manual and supplementary
documentation
‣Follow instructions and comply with conditions
2.2 Designated use
Improper use can pose hazards
‣Ensure that the measuring device is free of defects while it is in operation
‣Use the measuring device only for media to which the process-wetted materials have
an adequate level of resistance
‣Do not exceed or undershoot the relevant limit values of the measuring device → see
the "Technical data" section
2.2.1 Incorrect use
The manufacturer is not liable for damage caused by improper or non-designated use.
Clarification of borderline cases:
‣For special materials and media used for cleaning, the manufacturer is happy to
provide assistance in verifying the corrosion resistance of medium-wetted materials,
but disclaims any warranty or liability.
Residual risks
Due to heat transfer from the process, the temperature of the electronics housing and the
assemblies contained therein may rise to 80 °C (176 °F) during operation.
Danger of burns from contact with surfaces!
‣If necessary, ensure protection against contact to prevent burns.

Liquitrend QMW43 Product description
Endress+Hauser 7
2.3 Workplace safety
When working on and with the device:
‣Wear the required personal protective equipment according to federal/national
regulations.
For welding work on the piping:
‣Do not ground the welding unit via the device.
If working on and with the device with wet hands:
‣Due to the increased risk of electric shock, gloves must be worn.
2.4 Operational safety
Risk of injury!
‣Operate the device only if it is in proper technical condition, free from errors and faults.
‣The operator is responsible for ensuring the interference-free operation of the device.
Modifications to the device
Unauthorized modifications to the device are not permitted and can lead to unforeseeable
dangers.
‣If, despite this, modifications are required, consult with Endress+Hauser.
Repair
Repairs are not envisaged for this device →  "Repair" section.
2.5 Product safety
This measuring device is designed in accordance with good engineering practice 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.
It meets general safety standards and legal requirements. It also complies with the EC
directives listed in the device-specific EC Declaration of Conformity. Endress+Hauser
confirms this by affixing the CE mark to the device.
2.6 IT security
We only provide a warranty if the device is installed and used as described in the
Operating Instructions. The device has safety mechanisms integrated to prevent users
from inadvertently changing settings.
Provide additional protection for the device and data transfer to/from the device
‣IT security measures defined in the plant owner/operator's own security policy must be
implemented by plant owners/operators themselves.
3 Product description
• Compact measuring device
• Continuous measurement of conductive and capacitive components of media for the
measurement of buildup thickness and conductivity
Flush-mounting of the device in pipes or in storage, mixing and process vessels enables the
optimization of CIP cleaning, UHT applications as well as process cycle times.

Incoming acceptance and product identification Liquitrend QMW43
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3.1 Product design
1
3
2
4
5
6
A0036957
 2 Product design
1 M12 plug
2 Plastic housing cover IP65/67
3 Metal housing cover IP66/68/69
4 Housing
5 Process connection
6 Sensor
4 Incoming acceptance and product
identification
4.1 Incoming acceptance
Check the following during incoming acceptance:
 Are the order codes on the delivery note and the product sticker identical?
 Are the goods undamaged?
 Do the nameplate data match the ordering information on the delivery note?
 If required (see nameplate): Are the safety instructions (XA) provided?
If one of these conditions is not met, please contact the manufacturer's sales office.
4.2 Product identification
The following options are available for the identification of the measuring device:
• Nameplate specifications
• Serial number
• 2-D matrix code (QR code)
• Extended order code with breakdown of the device features on the delivery note
‣Enter the serial number from the nameplates in the W@M Device Viewer
(www.endress.com/deviceviewer)
 All the information about the measuring device and all associated Technical
Documentation are displayed.

Liquitrend QMW43 Incoming acceptance and product identification
Endress+Hauser 9
‣Enter the serial number on the nameplate into the Endress+Hauser Operations App or
use the Endress+Hauser Operations App to scan the 2-D matrix code (QR Code) on the
nameplate
 All the information about the measuring device and all associated Technical
Documentation are displayed.
4.3 Manufacturer address
Endress+Hauser SE+Co. KG
Hauptstraße 1
79689 Maulburg, Germany
Address of the manufacturing plant: See nameplate.
4.4 Nameplate
Ser. no.:
Order code:
Ext. ord. cd.:
2
3
4
5
18 19
15
11
1
910
6
7
8
12
16
17
13
14
A0041309
1 Manufacturer name/logo
2 Device name
3 Manufacturer's address
4 Order code
5 Serial number
6 Extended order code
7 Supply voltage
8 Signal output
9 Process temperature
10 Ambient temperature range
11 Process pressure
12 Firmware
13 Certificate symbols, communication mode (optional)
14 Degree of protection, e. g. IP, NEMA
15 Approval-specific information
16 Measuring point identification (optional)
17 Document number of Operating Instructions
18 Manufacturing date: year-month
19 2-D matrix code (QR code)

Installation Liquitrend QMW43
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4.5 Storage, transport
4.5.1 Storage conditions
• Permitted storage temperature: –40 to +85 °C (–40 to +185 °F)
• Use original packaging.
4.5.2 Transporting the product to the measuring point
Transport the device to the measuring point in the original packaging.
5 Installation
5.1 Installation conditions
5.1.1 Mounting location
Installation in vessel, pipe or tank.
5.1.2 Vessel or tank
A0040922
 3 Installation examples
5.1.3 Pipes
A0021052
 4 Horizontal orientation → preferred orientation