Microlectra Dinel ULM-70 Instruction Manual

Ultrasonic level meters

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Instruction manual (32 pages)

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Microlectra bv.

www.microlectra.nl

INSTRUCTION MANUAL

průmyslová elektronika

Ulm – 70

ltrasonic level meters

Firmware: v.2.0

Microlectra bv.

Augustapolder 12. 2992 SR Barendrecht. The Netherlands.

www.microlectra.nl

info@microlectra.nl

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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Page 1 Microlectra bv. www.microlectra.nl INSTRUCTION MANUAL průmyslová elektronika Ulm – 70 ltrasonic level meters Firmware: v.2.0 Microlectra bv. Augustapolder 12. 2992 SR Barendrecht. The Netherlands. www.microlectra.nl info@microlectra.nl Read carefully the instructions published in this manual before the first use of the level meter. Keep the manual...
Page 3: Table Of Contents
able of conTenTs 1 . Measuring principle .........................3 2 . Range of applications ......................3 3 . Variants of sensors ........................3 4 . Dimensional drawings ......................4 5 . I nstallation and putting into operation ..................4 6. I nstallation instructions ......................5 7. Electrical connection .......................9 8. Examples of ULM-70 connection ....................10 8.1 ...
Page 4: Measuring Principle
afeTy All operations described in this instruction manual have to be carried out only by trained personnel or an accredited person. Warranty and post warranty service must be exclusively carried out by the manufacturer. Improper use, installation or set-up of the level meter can result in crashes in the application (overfilling of the tank or damage of system components).
Page 5: Dimensional Drawings
4 . D iMensional Drawings ULM–70_–10 ULM–70_–06 ULM–70_–02 Pg11 cable gland Ground terminal ULM–70_–20 variant ULM-70 with protective conductor 5 . i nsTallaTion anD puTTing inTo operaTion This procedure includes the following three steps. • nsTallaTion • lecTric connecTion • eTTing © Dinel ULM–70...
Page 6: I Nstallation Instructions
6 . I nstallatIon InstructIons • Install the level meter in the vertical position into the upper lid of the tank or reservoir using a weld- ing flange, a fastening nut or a flange so that the level meter axis can be perpendicular to the surface level of the measured liquid (Fig. 1). • T he min. dimensional parameters to install the level meter into a lid or a ceiling of a tank are given in Fig. 3. • When installing in an open channel (reservoir, drain etc.), install the level meter onto a bracket as close as possible to the expected max. level. • In connection with the measurement principle, no sig- nals reflected in the area immediately under the level meter can be evaluated. The zone (Fig. 2) determines Fig. 1: Recommended installation in the min. distance possible between the level meter the tank and the highest surface level.
Page 7 • 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. 5: False echo from obstacles in the tank Fig. 6: False echo from the mixer paddle • Do not install the level meter in or above the filling point (Fig. 7). Fig. 7: Level meter installation outside the influence of filling • In case the level of bulk solids is measured, the horn measurement range is reduced Due to absorp- adapter tion of acoustic waves by a bulk medium, short- ening of the measuring range occurs by up to 50% depending on the grain size.
Page 8 • During filling, mixing and other processes, foam can arise on the surface level of the measured liq- uid. The foam considerably absorbs the ultrasonic sig- nal which might cause malfunction of the level meter (Fig. 9). For such cases, it is necessary to set up "SENSI- TIVITY" mode to "high" or contact the manufacturer if need.
Page 9 • The level meter must not be installed in places with direct so- lar radiation and must be protected against weather effects. • If the installation in places with direct solar radiation is inevi- table, 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. •...
Page 10: Electrical Connection
7 . e lecTrical connecTion The level meter is connected to consequential (evaluating) device with a suitable cable with the outer diameter of 6 to 8 mm using screw terminals located under the display module. The recom- mended cross section of cores for the current version 2 x 0,5 ÷ 0,75 mm and for the version with Modbus communication 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 cables) to the terminal ( ). Commu- nication wires A and B of the line RS-485 (for version "M" - Modbus) are connected to the terminals A and B. Procedure to connect the cable to the level meter: Fig. 16: Wiring diagram of the level meter with current output ULM-70 _-_-_- I Unscrew the nut of the upper transparent lid. Take the upper edge of the display module and metal clip display unit connector...
Page 11: Examples Of Ulm-70 Connection
User manual - METER SRP-N118 +24V Power supply optional ACTIVE current output (depending on version) It is also necessary to design and take measures to reduce the effects of static electricity to a safe level in the wiring. 6 mm 5 mm Installation in explosive atmospheres needs to be carried out in compliance with CSN EN 10 11 12 13 14 15...
Page 12: In Versions For Explosive Areas
Figure 4.3. Method of connecting cables to the clamping connectors 8 .2 . W iring diagram level meter With current output All connections must be made while power supply is disconnected ! pdu ...
Page 13 RS - 485 Power (optional) max = 100mA supply DATA DATA- (depending on version) 5 6 7 8 9 0/1 - 5V 0/2 - 10V 10 11 12 13 14 15 (option) (option) n.c. RS - 485 n.c. (optional) (optional) (optional) 0/4-20mA User manual - METER SRP-94...
Page 14: Wiring Diagram Of The Level Meter With Current Output And Mgu Unit
8 .3 . W mgu iring diagram level meter With current output unit ULM-70N-_ _-_-I (+U) + MGU-800 (0 V) - (with module IUI4) 8 .4 . W m / rs485 mgu ...
Page 15: Set-Up Elements
9 . s up eleMenTs Cable gland Upper lid nut Control buttons OLED display Label Ultrasonic transmitter Fig. 20: Full view of the level meter Button Display of measured values • Set-up mode access Ultrasonic Level Meter ULM-70 • Confirmation of selected item in the menu 1745 • Move the cursor in the line •...
Page 16: Operation And Setting
11 . o peraTion anD seTTing Set the level meter using 3 buttons placed on the display module U N I T S (see Chapter Set-up elements). After 5 min. of inactivity, the level L E V E L : meter automatically returns back to the measurement mode. If the D I S P L A Y : password is active, the level meter will be also locked. The val- T E M P E R A T U R E °C ues that have not been confirmed using the button will not be...
Page 17 To enter to the menu press the same button to select "BASIC SETTINGS". Then, using select "MIN LEVEL" or "MAX LEVEL". set the output cur- Now it is shown the item "MIN LEVEL" ("MAX LEVEL"). By pressing rent "OUTPUT", the distance for the defined current "LEVEL" the value o n the display "DISPLAY". By pressing button save the data. By next presses of the button leave the menu. The level meter returns to measurement mode. UNITS Level meter can process and convert a large number of different physical values.
Page 18 SENSITIVITY The setting is defined in three steps of the level meter sensitivity. "LOW" – Low sensitivity in case of surrounding interferences affecting the measurement. "MEDIUM" – Medium sensitivity (suitable for most applications). "HIGH" – Enhanced sensitivity for measured mediums partly absorbing the ultrasonic signal (bulk solids, foams) S E N S I T I V I T Y M I N L E V E L You can set the sensitivity in three degrees: M A X L E V E L...
Page 19: Service Settings
In case of installed mixers, it is necessary to posi- Obstacles tion the mixers under the level meter (direct the mixer blade to the ultrasonic signal beam). Note: If there are significant obstacles in the upper 1/2 of Tank half of the tank, multiple false reflections can occur especially in closed tanks. In such cases it is necessary to reduce the level in the tank as Tolerance zone for "LEVEL DISTANCE"...
Page 20 HART HART mode (point to point, multidrop) and multidrop mode address setting. Up to 15 units can be ® connected to one two-wired cable in the multidrop mode. H A R T M E D I U M T E M P E R A T U R E In case of the address "00", the point to point F A I L U R E M O D E P O L L I N G A D D R E S S H A R T mode is enabled.
Page 21: Additional Functions
11 .3 . a dditional functions Additional functions include modes to display temperature in the tank or to find out the actual flowing current in the loop. Besides, to lock modifications using a password and information about the level meter version. All of the functions are accessible from the main menu. DIAGNOSTICS It contains information about the actual temperature inside the tank B A S I C S E T T I N G S S E R V I C E (or about the compensated temperature) "TEMPERATURE" and D I A G N O S T I C C L O N E S E T T I N G S current flowing through the loop "CURRENT". If the temperature P A S S W O R D...
Page 22 C L O N E S E T T I N G S Incompatible type of level meter. Transfer of the settings can be realized only W A R N I N G – C L O N I N G I S N O T with the same type of level meter (e.g.
Page 23: Hart
LANGUAGE Setting the language of display menu. L A N G U A G E You can set three kinds of language: B A S I C S E T T I N G S S E R V I C E D I A G N O S T I C ČESKY –...
Page 24: Modbus ® Communication Protocol
13 . p ® roTokol oDbus Data communication takes place along a series line of a standard RS-485 with protocol Modbus RTU. A list of relevant variables is provided in a separate annex. To set up the level meter and collect measured data, you can use the software application "Basic SCADA level", which is freely available at the Website www.dinel.cz. Connecting the level meter to a peripheral device can be performed using a converter URC-485, see image 23. ULM–70_-_ _-_-M Power supply unit convertor URC-485 RS485 / USB Obr. 23: Typical hardware configuration with Modbus ® 14 . o rDer coDe ULM – 70 – Set-up elements: D – basic version with display –...
Page 25: Safety, Protection, Compatibility And Explosion Proof
16 . s afeTy proTecTion coMpaTibiliTy anD explosion proof The level meter ULM–70 is equipped with protection against reverse polarity and output current overload. Protection against dangerous contact is secured by low safety voltage that complies with EN 33 2000-4-41. Electromagnetic compatibility according to EN 55022/B, EN 61326/Z1 and EN 61000-4-2 to 6. Explosion proof of ULM–70Xi type complies with the following standards: EN 60079-0 : 2007; EN 60079-11 : 2007 ; EN 60079-26 : 2007 and examined by FTZÚ-AO 210 Ostrava - Radvanice certificate No.: FTZÚ 09 ATEX 0277X. Special conditions for safe use ULM–70Xi: The device is designed for connection to the isolating repeater IRU-420. When the other approved supply unit is used, whose output parameters satisfy above mentioned output parameters, it is nec- essary 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.
Page 26: Marking Of Labels
18 . M arking of labels Labels for type of ULM-70N-_ _-_-I-_-_: Temperature range Dinel according to type: ULM-70N-02-G-I-B-D Ser. No.: ______ ta = -30 ... +70°C www.dinel.cz U = 18 36 V Made in Czech Republic ta = -30 ... +70°C I = 4 20 mA IP67 t = -30 ...
Page 27 Dinel www.dinel.cz U = 18 36 V Made in Czech Republic RS-485 (Modbus RTU) IP67 t = -30 ... +70 °C Labels for type of ULM-70N-_ _-_-M-_-_: Temperature range Dinel ULM-70N-10-G-M-B-D according to type: Ser. No.: ______ ta = -30 ... +70°C www.dinel.cz U = 18 36 V Made in Czech Republic ta = -30 ...
Page 29: Specifications
20 . s pecificaTions – l ecHnical specificaTions eVel MeTer ULM–70_–02 0.15 ... 2 m ULM–70_–06 0.25 ... 6 m Measuring range ULM–70_–10 0.4 ... 10 m ULM–70_–20 0.5 ... 20 m Adjustable measuring range (SPAN) Min. 200 mm ULM–70N–_ _ 18 ... 36 V DC Supply voltage ULM–70Xi–_ _ 18 ... 30 V DC ULM–70_–_ _-_-I 4 ... 20 mA (Limit values 3.9 ... 20.5 mA), HART ®...
Page 30 – l ecHnical specificaTions eVel MeTer Protection class IP67 ULM–70_–02 0.3 kg ULM–70_–06 0.4 kg Weight ULM–70_–10 0.6 kg ULM–70_–20 3.1 kg – D ecHnical specificaTions isplay MoDule Display type Matrix OLED Resolution 128 x 64 pixel Character height / Number of digits measured value 9 mm / 5 Digits Display colour Yellow Buttons Membrane switch panel Ambient temperature range -30 ... +70 °C Weight 46 g rea classificaTion (according to EN 60079-10 and EN 60079-14) ULM–70N–_ _ Performance for non-explosive areas...
Page 31: Packing, Shipping And Storage
21 . p ackaging 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. Remove the device from the packaging only just before using, thereby protecting it from potential damage. A forwarding company will be used to ship goods to the customer. Upon prior agreement, ordered goods can be picked up in person at company headquarters. When receiving, please check to see that the consignment is complete and matches the order, or to see if any damage has occurred to the packaging and device during transport. Do not use a device clearly damaged during transport, but rather contact the manufacturer in order to resolve the situation. If the device is to be further shipped, it must be wrapped in its original packaging and protected against impact and weather conditions. Store the device in its original packaging in dry areas covered from weather conditions, with humid- ity of up to 85 % without effects of chemically active substances. The storage temperature range is -20°C to +60°C. Level meters of variants ULM–53_– 02, 06, 10 are fitted with protective caps to prevent damage to the ultrasonic transducer.
Page 32 This project was realised under financial support from the funds of the state budget through the "Department of Trade and Industry". Microlectra bv. Augustapolder 12. 2992 SR Barendrecht. The Netherlands. www.microlectra.nl info@microlectra.nl...