Dinel ULM–53L, ULM–53L–02, ULM–53L–06, ULM–53L–10, ULM–53L–20 Instruction Manual

INSTRUCTION MANUAL

Ultrasonic level meters Ulm–53l

Read carefully the instructions published in this manual before the rst use of the level meter. Keep

the manual at a safe place. The manufacturer reserves the right to implement changes without prior notice.

CONTENT

1 .  Safety .........................................................................................................................................4

2 .  Packing, transportation and storage ..........................................................................................4

3 .  Measuring principle ....................................................................................................................5

4 .  Range of application ..................................................................................................................5

5 .  Features of variants ...................................................................................................................5

6 .  Dimensional drawings ................................................................................................................6

7 .  Installation instructions ...............................................................................................................7

8 .  Electrical connection ..................................................................................................................10

9 .  Level meter setting .....................................................................................................................11

10 .  Status signalization ..................................................................................................................11

11 .  Order code ...............................................................................................................................11

12 .  Accessories ..............................................................................................................................11

13 .  Safety, protection and compatibility .........................................................................................12

14 .  Use, manipulation and maintenance ........................................................................................12

15 .  General conditions and warranty .............................................................................................12

16 .  Specications ...........................................................................................................................13

ULM–53L © Dinel, s.r.o.

4

All operations described in this instruction manual have to be carried out by trained personnel
or by an accredited person only. Installation, commissioning, operation and maintenance
of the capacitive level sensors has to be carried out in accordance with this instruction
manual; the provisions of regulations in force regarding the installation of electrical equip­ment have to be adhered to.

Improper use, installation or set-up of the sensor can lead to crashes in the application,

(overlling of the tank or damage of system components).

The manufacturer is not responsible for improper use, loss of work caused by either direct

or indirect damage, and for expenses incurred at the time of installation or during the period
of use of the level sensors.

1 . 

SafETy

2 . 

Packing, transPortation and storage

Equipment ULM– 53 L is packed in a cardboard wrap and the whole consignment is placed in a card­board box. The cardboard box is suitably lled to prevent mechanical damage during transport. Let 
the device packed up till the use to prevent possible damage.

Transport to the customer is realized by forwarding company. Upon receipt, please check whether 
the shipment is complete and corresponds to the extent of the order, or whether during the transport 
did not occurred the damage of the packaging or the equipment. The device apparently damaged 
during transport do not use and contact the manufacturer to resolve the situation.

If  the  device  is  transported  further,  then  only  wrapped  in  the  original  packaging  and  protected 
against shocks and weather. Store the device in its original packaging in a dry place, sheltered from 
the weather, with humidity up to 85% without the effects of chemically active substances. Storage 
temperature range is from -20°C to +60°C.

Level meters variants ULM–53_–02, 06, 10 are tted with protective caps at the ultrasonic

transducer to prevent damage. Before commissioning, remove the caps!

Used symbols

To ensure maximum safety of control processes, we have dened the following safety instructions 
and information. Each instruction is labeled with the appropriate pictogram.

Alert, warning, danger

This symbol informs you about particularly important instructions for installation and op­eration of equipment or dangerous situations that may occur during the installation and 
operation. Not observing these instructions may cause disturbance, damage or destruc­tion of equipment or may cause injury

Information

This symbol indicates particularly important characteristics of the device.

5

© Dinel, s.r.o. ULM–53L

3 . 

measUring PrinciPle

The ULM® ultrasonic  level meters  are  compact  measurement  devices  containing  an  ultrasonic 
transmitter  and  an  electronic  module.  Using  an transmitter, level  meters  transmit the series  of 
ultrasonic  pulses  that  spread  towards  the  level  surface.  The  transmitter  recuperates  reected 
acoustic waves that are subsequently processed  in  the electronic module. Based on the period 
during which the individual pulses spread towards the level and back, this period is averaged by 
the  electronics  that  performs  temperature  compensation  and  subsequently  a  conversion  to  an 
output current (voltage) or Modbus communication.

4 . 

range of aPPlication

The level meters are suited to continuous non-contact level measurement of liquids (water solu­tions,  sewerage water, etc.), mash and paste materials (sediments, sticks, resins etc.) in closed 
or open vessels, sumps, reservoirs and open channels. In case the level of bulk-solid materials is 
measured, the measurement range is reduced.

ULM–53L–_ _–I  and  ULM–53L–_ _–U  level  meters  has  no  customer  accessible  adjusting  ele­ments. Customer choice of the maximum measurement range (factory settings), The outputs can 
be current (4 ... 20 mA) or voltage (0  ...  10  V).  ULM–53L–__–M level meters has no customer 
accessible adjusting elements. Two-way communication (parameterization) by RS–485 Modbus 
RTU protocol.

ULM –53L –02 Measuring range from 0.25 m to 2 m (customer congurable), plastic 

PVDF (Polyvinylidene Fluoride) transmitter and plastic body, process 
connection with thread G 1”.

ULM –53L–06 Measuring range from 0.25 m to 2 m (customer congurable), plastic 

PVDF (Polyvinylidene Fluoride) transmitter and plastic body, process 
connection with thread G 1½".

ULM – 53L–10 Measuring range from 0.5 m to 10 m (customer congurable), plastic 

PVDF transmitter and plastic body, process connection with PP 
(Polypropylene) ange.

ULM–53L–20 Measuring range from 0.5 m to 20 m (customer congurable), plastic 

PVDF transmitter and plastic body, process connection with 
aluminium ange.

5 . 

featUres of variants