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Dinel ULM-70 Instruction Manual

Ultrasonic level meters
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INSTRUCTION MANUAL
ulm – 70
ultrasonic level meters
Firmware: v.2.0
Read carefully the instructions published in this manual before the first use of the level meter. Keep the manual
at a safe place. The manufacturer reserves the right to implement changes without prior notice.

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Summary of Contents for Dinel ULM-70

  • Page 1 INSTRUCTION MANUAL ulm – 70 ultrasonic level meters Firmware: v.2.0 Read carefully the instructions published in this manual before the first use of the level meter. Keep the manual at a safe place. The manufacturer reserves the right to implement changes without prior notice.

  • Page 2: Table Of Contents

    4  .  Dimensional drawings ....................... 4 5.     Installation and putting into operation ................5 6.   M echanical mounting ....................... 5 7. Electrical connection ........................9 8. Examples of ULM-70 connection ....................11 8.1  .  Wiring diagram of the level meter with current output and PDU unit ......11 8.2  .  Wiring diagram of the level meter with current output and PDU unit in versions for explosive areas ................... 12 8 .3 ...

  • Page 3: Used Symbols

    (the body with measuring electronics) and display module. Using the electroacoustic converter, the level meters transmit the sequence of ultrasonic pulses that spread towards the surface level. The converter recuperates reflected acoustic waves that are subsequently pro- cessed in the electronic module. The intelligent evaluation block filters out interfering signals, compares the cleaned received signal with the false reflection map (e.g. from mixers, ladders, reinforcement etc.) and selects a suitable reflection (echo). Based on the period during which the individual pulses spread towards the surface level and back and based on the measured temperature in the tank, the instant distance to the surface level is calculated. According to the level height, the level meter output is set and the measured value is displayed on the display. 2. Range of applications Thanks to their non-contact sensing principle, level meter are suitable for continuous level measurement of liquids, wastewater, sludge, bulk materials, suspensions, adhesives, resins in various open and closed containers, sumps, channels or troughs. The applicability for measur- ing the level of bulk materials is limited and the measuring range is shortened. © Dinel, s.r.o. ULM–70...

  • Page 4: Variants Of Sensors

    Measuring range from 0.5m to 20m, plastic PVDF transmitter, mechanical connection with aluminium alloy flange. 4. Dimensional drawings ULM–70_–10 ULM–70_–02 ULM–70_–06 Pg11 cable gland M16 x 1,5 Ground terminal ULM–70_–20 variant ULM-70 with protective conductor po 45° po 45° Flange (for type 20) according to standard: DIN 2527, PN10, DN100 ULM–70 © Dinel, s.r.o.

  • Page 5: Installation And Putting Into Operation

    It is necessary to install the level meter so that the bin level cannot interfere with the dead zone when filled up to the maximum. If the measured level interferes with the dead zone, the level meter will not work properly. d – Distance from the tank wall m – Dead zone reference plane for (blind zone, blocking the measurement c – Maximum reach distance) of the level meter Fig. 2: Level meter dead zone Fig. 3: Installation distance from the tank wall © Dinel, s.r.o. ULM–70...
  • Page 6 Fig. 4: Possible installation of the installation neck • If the emitted acoustic signal of the level meter is affected by near objects (roughness on walls of the tank, various partitions, mixers etc.), it is necessary to map false reflections by activating the mode "TEACHING". In case of installed mixers, it is necessary to put the mixers to position under the level meter (direct the mixer paddle to the ultrasonic signal beam) (Fig. 5 and 6). Fig. 6: False echo from the mixer paddle Fig. 5: False echo from obstacles in the tank • Do not install the level meter in or above the filling point (Fig. 7). Fig. 7: Level meter installation outside the influence of filling ULM–70 © Dinel, s.r.o.
  • Page 7 (Fig. 10). • Rotating mixer blades can cause that the surface is stirred, which results in false reflections of the ultrasonic signal from the surface level and unreliable operation of the level meter (Fig. 13).(obr. 11). For a rippled or swirling level, you can use the directional Fig. 10: Moderately stirred Fig. 11: Intensely stirred surface horn to eliminate scattering of surface the ultrasonic signal. © Dinel, s.r.o. ULM–70...
  • Page 8 ≥ 150 mm ULM–70– 20 h ≥ 200 mm • The level meter must not be installed in places with direct solar radiation and must be protected against weather effects. If the installation in places with direct solar radiation is inevitable, it is necessary to mount a shielding cover above the level meter(Fig. 13). • It is suitable to run the cable under a cable bushing (obliquely down in slack) according to Fig. 14 to prevent penetration of humidity. Then the rain and condensing water can flow off freely. The cable bushing and connector have to be sufficiently tightened to prevent penetra- • tion of humidity. Fig. 13: Solar radiation Fig. 14: Prevention to avoid shielding cover intrusion of humidity ULM–70 © Dinel, s.r.o.

  • Page 9: Electrical Connection

    2 x 2 x 0,25 mm (twisted pair, shielded). Plus pole (+U) is connected to the terminal ( + ), minus pole (0 V) to the terminal (-) and the shielding (only for shielded Fig. 16: Wiring diagram of the level meter cables) to the terminal ( ). Communication wires A with current output ULM-70 _-_-_- I and B of the line RS-485 (for version "M" - Modbus) are connected to the terminals A and B. metal display unit connector clip Procedure to connect the cable to the level meter: Unscrew the nut of the upper transparent lid. Take the upper edge of the display module and take it out carefully by mild swinging up.
  • Page 10 In the event that the sensor is installed in an outdoor environment at a distance greater than 20 m from the outdoor switchboard, or from an enclosed building, it is necessary to supplement the electrical cable leading to the sensor with suitable overvoltage protection. ULM–70 © Dinel, s.r.o.

  • Page 11: Examples Of Ulm-70 Connection

    +24V Power (optional) supply (depending on version) 8. Examples of ULM-70 connection 10 11 12 13 14 15 8  . 1  .  WIRING DIAGRAM OF THE LEVEL METER WITH CURRENT OUTPUT AND PDU UNIT Figure 4.3. Method of connecting cables to the clamping connectors (optional) (optional) (optional) OC1 ÷...

  • Page 12: Wiring Diagram Of The Level Meter With Current Output And Pdu Unit In Versions For Explosive Areas

    0/4 - 20mA Imax = 100 mA 0/4 - 20mA Figure 4.4. Terminals description (relay outputs) Figure 4.4. Terminals description (relay outputs) ULM-70Xi-_ _-_-I (+U) + – (0 V) IRU-420-I explosive non-explosive 230 V AC area area Connection of PDU-420-W is valid for firmware version 6.00 or higher. The older ver- sions (up to version 5.99), the terminal 9 of the IRU unit is connected to the terminal 10 of the PDU unit and the terminal 10 of the IRU unit is connected to the terminal 11 of the PDU unit. ULM–70 © Dinel, s.r.o.
  • Page 13 = 30V DC, (+U) + max = 30mA, max = 100mW Figure 4.7. Terminals description (OC-type outputs) 0/1 - 5V, 0/2 - 10V Figure 4.7. Terminals description (OC-type outputs) – (0 V) IRU-420-I 230 V AC explosive non-explosive area area © Dinel, s.r.o. ULM–70...

  • Page 14: Wiring Diagram Of The Level Meter With Current Output And Mgu Unit

    8  . 4  .  WIRING DIAGRAM OF THE LEVEL METER WITH MODBUS / RS485 AND MGU UNIT MGU-800 (without additional modules) ULM-70N-_ _-_-M (0V) WH (+U) BN Cab.Sh. (B) GN (A) YE 8  . 5  .  WIRING DIAGRAM OF THE LEVEL METER WITH MODBUS / RS485 AND PDU UNIT +24V DC RS 485 - Master Imax=120 mA 12 13 14 18 19 ULM-70N-_ _-_-M ULM–70 © Dinel, s.r.o.

  • Page 15: Setting Elements

    (or it can be configured via HART or MODBUS). When the settings are completed, the display module may be disconnected and the level meter then measures without it. © Dinel, s.r.o. ULM–70...

  • Page 16: Operation And Settings

    Modbus RTU protocol. The list of the respective registers is provided in a separate annex. The application "Uni SCADA level" can be used to setup the level meter and to collect measured data, and is freely available at the website www.dinel.cz. 10  . 1  . BASIC CONFIGURATION After the first start of the level meter it is necessary to perform the basic configuration (setting of the measuring range, choice of units and possibly damping).
  • Page 17 (in the tolerance field as shown in fig. 21). After entering the "SET LEVEL DISTANCE" by pressing button the system starts "teaching" (false reflection mapping). During the mapping, the display shows flashing sign "RUNNING". The mapping of false echoes can be completed when you see the inscription "Press OK to stop" and you press The procedure is completely finished when you can see the inscription "DONE". It is then possible to exit the menu by repeated pressing the button © Dinel, s.r.o. ULM–70...
  • Page 18 "BASIC SETTINGS". Then, using select "OUTPUT". 2. Then by pressing enter the limit values of current. 3. By pressing button save the data. By next presses of the button leave the menu. The level meter returns to measurement mode. ULM–70 © Dinel, s.r.o.
  • Page 19 MODBUS This item is part of a menu with Modbus output level meter ULM-70 _-_-_- M. Modbus mode is intended for the settings of the level Modbus addresses, baud rate and parity settings M O D B U S L E V E L...

  • Page 20: Service Settings

    D I A G N O S T I C C L O N E S E T T I N G S the initial state or reset it as well. The settings are accessible in P A S S W O R D L A N G U A G E the basic menu under the item "SERVICE". I N F O ULM–70 © Dinel, s.r.o.

  • Page 21: Medium Temperature

    The range "01" to "15" is H A R T F A C T O R Y D E F A U L T reserved for addresses in the multidrop mode R E S E T (current is fixed at 4 mA). © Dinel, s.r.o. ULM–70...

  • Page 22: Factory Default

    Then the displayed temperature is an average value from the temperature set in the "MEDIUM TEMPERATURE" and the actual tempera- ture measured by the sensor. CURRENT: display the actual output current; only for level meter with a ULM-70_-_-_-I current output ULM–70 © Dinel, s.r.o.

  • Page 23: Clone Settings

    2. The selected mode starts by pressing button . During transmission the display shows "NOW CLONING". 3. After completing the process in the middle of the screen displays "DONE". It is then possible to leave the menu and the mode by pressing the button © Dinel, s.r.o. ULM–70...
  • Page 24 (clockwise direction), button serves to change the values (0 ... 9). 3. After the operation is completed, confirm the edited data by pressing the button Ultrasonic Level Meter ULM-70 If the password is lost, contact the manufacturer. 1745 The level meter with activated password will be automatically locked after 5 minutes of inactivity or after 5 min.

  • Page 25: Protocol Hart

    Data transmission runs through the same line as the 4 ÷ 20mA current loop without impact on analog communication. For setting the level meter and collection of measured data, it is necessary to have available a HART communicator, by which it is possible to communicate directly with the level meter, or using it, to mediate communication with a peripheral device, see image 22. ULM–70_-_ _-_-I ≈ 250 R power supply unit HART ® convertor UHC-01 RS232 / USB Obr. 22: Typical hardware configuration with HART © Dinel, s.r.o. ULM–70...

  • Page 26: Protocol Modbus

    - I) ® • status messages in HART® communication (valid for current version with HART communication - I) ® • Status registers: STATUS 1 and STATUS 2 in MODBUS communication (valid for version with MODBUS communication - M) ULM–70 © Dinel, s.r.o.

  • Page 27: Order Code

    M20 for 2 cables plastic cable gland for protective hose SET - UP ELEMENTS basic version with display basic version with LCD display without display, metal lid ULM-70 N 06 - - B1 - D EXAMPLE OF CODING © Dinel, s.r.o. ULM–70...

  • Page 28: Accessories

    The device is designed for connection to the isolating repeater IRU-420. When the other ap- proved supply unit is used, whose output parameters satisfy above mentioned output param- eters, it is necessary to have a galvanic separation or, if supply unit without galvanic separation is used (Zener barriers), it is necessary provide potential equalization between sensor and point of barrier earthing. For application in zone 0 the present explosive atmospheres - mixture of air with flammable gases, vapour or mists must comply: 0,8 bar < p < 1,1 bar. The device must be installed in such a way, to prevent mechanical damage of sensor face. It is necessary carried out earthing by screw which is placed on head of level meter. The device must be installed in such a way, to prevent mechanical damage of sensor face. ULM–70 © Dinel, s.r.o.

  • Page 29: Use, Manipulation And Maintenance

    Štítek pro varianty ULM-70N-06-G-I-B-D Ambient temperature range: t  = -30 ... +_ _ °C (see. Temperature range according to type) Protection class: IP67 Dinel ULM-70N-10-G-I-B-D Ser. No.: ______ Compliance mark: Electro-waste take-back system mark: www.dinel.cz U = 18 36 V Made in Czech Republic I = 4 20 mA IP67 © Dinel, s.r.o. ULM–70 t = -30 ... +60 °C Štítek pro varianty ULM-70N-10-G-I-B-D...
  • Page 30 U = 18 36 V Made in Czech Republic Symbol of producer: logo Dinel ® RS-485 (Modbus RTU) IP67 t = -30 ... +60 °C Internet address: www.dinel.cz Level meter type: ULM–70N–_ _–_–I–_–_ Štítek pro varianty ULM-70N-20-F-M-B-D Serial number: Ser. No.: xxxxx – (from the left: production year, serial prodution number) Supply voltage: U= 18 ... 36 V = Data output: RS-485 (Modbus RTU) Ambient temperature range: t  = -30 ... +_ _ °C (see. Temperature range according to type) Varianty značení: Protection class: IP67 Compliance mark: ULM-70N-__-_-M-_-_ ULM-70N-__-_-M-_-_ Electro-waste take-back system mark: Real label size is 70x20mm. ULM–70 © Dinel, s.r.o.

  • Page 31: Technical Specifications

    0.1 MPa Sensitivity 3 steps (low – medium – high) Damping 0 ... 99 s Measuring period 1 ... 4 s Rise time ca. 30 s Additional technical data for Ex proof – Max. internal values =30 V DC; I =132 mA; P =0.99 W; C =370 nF; L =0.9 mH Failure indication Adjustable in modes: (echo loss, level in dead zone , internal failure) 3.75 mA ; 22 mA ; Last measured value Maximal resistance of current output load (U = 24 V DC)  = 270 Ω ULM–70_–02 Screwing with thread G 1'' ULM–70_–06 Screwing with thread G 1½'' Mechanical connection ULM–70_–10 Screwing with thread G 2¼'' ULM–70_–20 Aluminium alloy flange In case the level of bulk-solid materials is measured, the measurement range is reduced. Allowed pressure range in the zone 0: 80 ... 110 kPa. Dead zone = Blind zone = Blocking distance Including 250Ω resistor in case of HART connection. ® © Dinel, s.r.o. ULM–70...
  • Page 32 Body All types aluminium alloy with powder coating Housing with thread All types plastic PP Electroacoustic converter All types plastic PVDF Display module ULM-70_...-D (with display) plastic POM Cable gland All types plastic PA Flange ULM-70-20-F aluminium alloy with powder coating acTory defaULT ULM–70_–02 ULM–70_–06 ULM–70_–10 ULM–70_–20 MIN LEVEL 2 000 6 000 10 000 20 000 MAX LEVEL UNITS mm; %; °C mm; %; °C mm; %; °C mm; %; °C...

  • Page 33: Packaging, Shipping And Storage

    Explosive proof – suitable for explosive areas (combustible gases or vapours) ULM–70Xi–20 II 2G Ex ia IIA T5 Gb with Isolating repeater (IRU–420), the whole level meter – zone 1 1) Intrinsically safe isolation converter (e.g. Dinel IRU-420). 20. Packaging, shipping and storage The device DLM–35 is packaged in a polyethylene bag, and the entire consignment is placed into a cardboard box. A suitable filler material is used in the cardboard box to prevent mechanical damage during transport.

  • Page 34: Menu Structure

    ULM–70 © Dinel, s.r.o.
  • Page 35 Notes...
  • Page 36 Czech Republic phone: +420 577 002 002 e-mail: sale@dinel.cz www.dinel.cz This project was realised under financial support from the funds of the state budget through the "Department of Trade and Industry". Find the updated version at www.dinel.cz 01/2025 version: 08/2017...

This manual is also suitable for:

Ulm-70-02Ulm-70-10Ulm-70-06Ulm-70-20

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