Stübbe MOT C2 Series Installation instructions

Filling level transmitter
MOT
Original operating manual Series
MOT C2
Version BA-2020.11.16 US
Print-No. 302 352
TR MA DE Rev001
STÜBBE GmbH & Co. KG
Hollwieser Straße 5
32602 Vlotho
Germany
Phone: [phone]
Fax: [phone]
E-mail: [email protected]
Internet: www.stuebbe.com
Subject to technical modifications.
Read carefully before use.
Save for future use.

Table of contents
Table of contents
1 About this document ............................... 3
1.1 Target groups ................................. 3
1.2 Other applicable documents ................ 3
1.3 Warnings and symbols ....................... 3
2 General safety instructions ....................... 4
2.1 Intended use .................................. 4
2.2 General safety instructions .................. 4
2.2.1 Obligations of the operating company ...... 4
2.2.2 Obligations of personnel ..................... 4
2.3 Specific hazards .............................. 4
2.3.1 Hazardous media ............................ 4
3 Layout and Function ............................... 5
3.1 Name plate ................................... 5
3.2 Description .................................... 5
3.3 Assembly ..................................... 5
4 Transport, Storage and Disposal ................. 6
4.1 Unpacking and inspection on delivery ..... . 6
4.2 Transportation ................................ 6
4.3 Storage ....................................... 6
4.4 Disposal ....................................... 6
5 Installation and connection ....................... 7
5.1 Check operating conditions ................. 7
5.2 Prepare tank .................................. 7
5.3 Install device .................................. 7
5.4 Electrical connection of device .............. 7
6Operation ............................................ 8
6.1 Configure device ............................. 8
6.2 Restore the pump to service ................ 8
7 Maintenance ......................................... 8
7.1 Servicing ...................................... 8
7.2 Maintenance .................................. 8
7.2.1 Removing the device ........................ 8
7.2.2 Replacement parts and return .............. 9
8 Troubleshooting .................................... 9
9 Appendix ............................................. 10
9.1 Technical specifications ...................... 10
9.2 Plug assignment ............................. 10
List of figures
Fig. 1 Name plate (example) ....................... 5
Fig. 2 Assembly ..................................... 5
Fig. 3 Connection diagram ......................... 10
List of tables
Tab. 1 Other application documents, purpose and
where found .................................. 3
Tab. 2 Warnings and symbols ....................... 3
Tab. 3 Servicing activities ........................... 8
Tab. 4 Troubleshooting .............................. 9
2 MOT C2 BA-2020.11.16 US 302 352

About this document
1 About this document
This manual:
• is part of the equipment
• applies to all series referred to
• describes safe and proper operation during all operating
phases
1.1 Target groups
Operating company
• Responsibilities:
– Always keep this manual accessible where the device
is used on the system.
– Ensure that employees read and observe this docu-
ment, particularly the safety instructions and warnings,
and the documents which also apply.
– Observe any additional country-specific rules and reg-
ulations that relate to the system.
Qualified personnel, fitter
• Mechanics qualification:
– Qualified employees with additional training for fitting
the respective pipework
• Electrical qualification:
– Qualified electrician
• Transport qualification:
– Qualified transport specialist
• Responsibility:
– Read, observe and follow this manual and the other
applicable documents, especially all safety instructions
and warnings.
1.2 Other applicable documents
To download:
Resistance lists
Resistance of materials used to
chemicals
www.stuebbe.com/pdf_resistance/300051.pdf
To download:
Data sheet
Technical data and conditions of operation
www.stuebbe.com/pdf_datasheets/302346.pdf
To download:
CE declaration of conformity
Conformity with standards
www.stuebbe.com/pdf_DOC/302358.pdf
Tab. 1 Other application documents, purpose
and where found
1.3 Warnings and symbols
Symbol Meaning
• Immediate acute risk
• Death, serious bodily harm
• Potentially acute risk
• Death, serious bodily harm
• Potentially hazardous situation
• Minor injury
• Potentially hazardous situation
• Material damage
Safety warning sign
Take note of all information
highlighted by the safety warning
sign and follow the instructions to
avoid injury or death.
Instruction
1., 2., ... Multiple-step instructions
Precondition
→Cross reference
Information, notes
Tab. 2 Warnings and symbols
302 352 BA-2020.11.16 US MOT C2 3

General safety instructions
2 General safety instructions
The manufacturer accepts no liability for damages caused
by disregarding any of the documentation.
2.1 Intended use
The device measures the filling level of a liquid medium.
• Device must only be used for measuring the filling level in
liquid media.
• Only use the device with suitable media
(→resistance lists).
• Adhere to the operating limits (→Data sheet).
2.2 General safety instructions
Observe the following regulations before carrying out any
work.
2.2.1 Obligations of the operating company
Safety-conscious operation
• Only operate the device if it is in perfect technical condition
and only use it as intended, staying aware of safety and
risks, and in adherence to the instructions in this manual.
• Ensure that the following safety aspects are observed and
monitored:
– Intended use
– Statutory or other safety and accident-prevention reg-
ulations
– Safety regulations governing the handling of haz-
ardous substances
– Applicable standards and guidelines in the country
where the pump is operated
• Make personal protective equipment available.
Qualified personnel
• Make sure all personnel tasked with work on the device
have read and understood this manual and all other appli-
cable documents, especially the safety, maintenance and
repair information, before they start any work.
• Organize responsibilities, areas of competence and the
supervision of personnel.
• The following work should be carried out by specialist tech-
nicians only:
– Installation, repair and maintenance work
– Work on the electrical system
• Make sure that trainee personnel only work on the device
under supervision of specialist technicians.
2.2.2 Obligations of personnel
Only complete work on the device if the following requirements
are met:
• System is empty
• System has been flushed
• System is depressurized
• System has cooled down
• System is secured against being switched back on again
• Do not make any modifications to the device.
2.3 Specific hazards
2.3.1 Hazardous media
• When handling hazardous media, observe the safety reg-
ulations for the handling of hazardous substances.
• Use personal protective equipment when carrying out any
work on the device.
• Collect leaking pumped liquid and residues in a safe man-
ner and dispose of in accordance with environmental reg-
ulations.
4 MOT C2 BA-2020.11.16 US 302 352

Layout and Function
3 Layout and Function
3.1 Name plate
MOT
FA20-74764
ID.No: 246208
4-20mA: 1,4
1
2
3
Fig. 1 Name plate (example)
1Devicetype
2 ID number
3 Output on pin 1 and 4
Device type
• MOT C2 – current output
3.2 Description
The device measures the filling level of a liquid medium with the
help of a magnetic float. The device transmits the measured
value via a standardized 4-20 mA current output.
3.3 Assembly
1
6
7
2
3
5
4
Fig. 2 Assembly
1 M8 connector
2 20 mA key (concealed) / plug
3 4 mA key (concealed) / plug
4 Tank gland union nut
5 Tank gland (¾" or 2")
6Float
7 End piece
302 352 BA-2020.11.16 US MOT C2 5

Transport, Storage and Disposal
4 Transport, Storage and
Disposal
4.1 Unpacking and inspection on delivery
1. Unpack the device when received and inspect it for trans-
port damage and completeness.
2. Check that the information on the type plate agrees with
the order/design data.
3. Report any transport damage to the manufacturer immedi-
ately.
4. If fitted immediately: Dispose of packaging material
according to local regulations.
– If fitted at a later point: leave device in its original pack-
aging.
4.2 Transportation
Device should preferably be transported in the original
packaging.
4.3 Storage
NOTE
Material damage due to inappropriate storage!
Store the device properly.
1. Make sure the storage room meets the following condi-
tions:
–Dry
– Frost-free
– Vibration-free
– Not in direct sunlight
– Storage temperature +10 °C to +60 °C
2. Device should preferably be stored in the original packag-
ing.
4.4 Disposal
Plastic parts can be contaminated by poisonous or radioac-
tive media to such an extent that cleaning will not be suffi-
cient.
WARNING
Risk of poisoning and environmental damage from
medium!
Use personal protective equipment when carrying out any
work on the device.
Prior to the disposal of the device: Neutralize residues of
medium in the device.
1. Remove electronic parts and dispose of in accordance with
local regulations.
2. Dispose of plastic parts in accordance with local regula-
tions.
6 MOT C2 BA-2020.11.16 US 302 352

Installation and connection
5 Installation and connection
5.1 Check operating conditions
1. Ensure the required operating conditions are met:
– Resistance of body and seal material to the medium
(→resistance lists)
– Media temperature (→Data sheet)
– Operating pressure (→Data sheet)
2. Consult with the manufacturer regarding any other use of
the device.
5.2 Prepare tank
The operating conditions must have been checked.
The device can be installed in closed and open contain-
ers. When the device is installed in open containers, it
is mounted on a suitable mounting device (e.g. mounting
bracket).
1. Make sure that the tank connection is suitable for the
installation of the device. Observe permissible connection
widths:
–¾"
–2“
2. Align the tank correctly and observe the following:
– Vertical mounting position of the device
– Sufficient space for installation, electrical connection
and maintenance
3. Avoid interferences:
– Secure the tank against unintentional changes of posi-
tion.
– Do not select an installation location near filling pipes.
– When installing in open tanks or basins, do not install
the unit over turbulence or the vortex caused by agita-
tors.
5.3 Install device
Tank has been properly prepared.
Avoidance of medium buildup.
Select installation location so that no build-up or crystalliza-
tion is possible.
WARNING
Risk of injury and poisoning due to medium spraying out!
Use personal protective equipment when carrying out any
work on the fitting.
1. Undo the union nut of the tank gland.
2. Check the union nut on the end piece for a tight fit and
tighten if necessary.
3. Guide the device into the tank connection on the top of the
tank and lower it to the base of the tank.
4. Fasten the device to the tank connection with the tank
gland.
5. Tighten the union nut of the tank gland.
5.4 Electrical connection of device
Device is installed in the tank.
Power supply switched off and secured against being
switched back on again.
Cable without shielding can be used to connect the device.
If electromagnetic interference is anticipated, then shielded
cablemustbeused.
1. Cut sensor cable to length.
2. Fit plug (→9.2 Plug assignment, Page 10).
3. Connect the device with the sensor cable.
302 352 BA-2020.11.16 US MOT C2 7

Maintenance
6Operation
6.1 Configure device
Device is installed in the tank.
Device is connected properly with the power supply and
ready for operation.
If necessary, the float position can be adjusted manually
with the keys.
On delivery, the device is set as follows:
– Top float position = 20 mA
– Bottom float position = 4 mA
1. Remove both plugs to operate the keys.
2. To set the bottom float position, proceed as follows:
– Empty the tank until the desired float position is
reached.
– Press the 4 mA key or the 20 mA key with a suitable
tool as required.
– Check the setting 4 mA or 20 mA in the control display.
The bottom float position is stored for the selected current
output.
3. To set the top float position, proceed as follows:
– Fill the tank to the maximum level until the desired float
position is reached.
– Press the 4 mA key or the 20 mA key with a suitable
tool as required.
– Check the setting 4 mA or 20 mA in the control display.
The top float position is stored for the selected current out-
put.
4. Mount both plugs on the keys.
6.2 Restore the pump to service
Device is installed in the tank.
Device is connected properly with the power supply and
ready for operation.
Device is set manually as required.
For this purpose, the current output for filling level must
be displayed in the higher-level controller as a measured
value.
After starting the superordinate control, the device trans-
mits a current signal (4-20 mA) linear to the filling level.
7 Maintenance
WARNING
Risk of injury and poisoning due to hazardous or hot
media!
Use personal protective equipment when carrying out any
work on the device.
Make sure that the tank is depressurized.
Block the media supply to the tank.
Switch off the power supply to the system.
Secure the power supply against being switched back on
again.
Provide warning of maintenance and repair work and set
up warning signs.
7.1 Servicing
Interval Action
As
necessary
• Cleandevicewithadampcloth.
Six-monthly Visual and function check:
• Normal operating conditions unchanged
•Noleaks
Tab. 3 Servicing activities
Perform maintenance tasks according to the table.
7.2 Maintenance
7.2.1 Removing the device
System is empty.
System has been flushed.
System is depressurized.
System has cooled down.
System must be secured against being switched back on
again.
1. Unplug connection cable.
2. Takethedeviceoutofthetank.
3. Decontaminate device if required.
8 MOT C2 BA-2020.11.16 US 302 352

Troubleshooting
7.2.2 Replacement parts and return
1. Have the following information ready to hand when order-
ing
spare parts (→3.1 Name plate, Page 5).
–Devicetype
– ID number
– Connection and gasket material
2. Please complete and enclose the document of compliance
for returns
(→www.stuebbe.com/en/service/download).
3. Use only spare parts from STÜBBE.
8 Troubleshooting
WARNING
Risk of injury and poisoning due to hazardous or hot
media!
Use personal protective equipment when carrying out any
work on the device.
Error Possible cause Corrective action
Float is stuck Clean sensor. No change to the
output signal Sensor defective Inform
STÜBBE
customer
service.
Current value
remains at the
bottom float
position, even with
higher filling levels
Float leaking Inform
STÜBBE
customer
service.
Current values
reach the end
positions of
4 mA and 20 mA
prematurely
End positions
stored incorrectly
Reset the
device (→6.1
Configure devi-
ce, Page 8).
Cable interrupted Resolve
interruption.
No current signal
Plug not plugged in Connect plug
correctly.
Tab. 4 Troubleshooting
302 352 BA-2020.11.16 US MOT C2 9

Appendix
9 Appendix
9.1 Technical specifications
Technical data, dimensions and accessories are described
in the data sheet (→1.2 Other applicable documents,
Page 3).
9.2 Plug assignment
2
13
4
Fig. 3 Connection diagram
14-20mAsignal
2 Not assigned
3 Not assigned
44-20mAsignal
10 MOT C2 BA-2020.11.16 US 302 352