USER'S MANUAL
Contents
1. Obstacles No object should protrude into the ultrasonic beam of the device e g ladder thermometer etc Foam Foam on the surface of the liquid can make ultrasonic measurement difficult or eventually make it fail Mount the device in a location where foam building is minimal or use a Stilling pipe Temperature The transmitter should be protected against overheating e g by direct sunshine to avoid inaccurate measurement f 5 Net Intense movement of the air may effect the ultrasonic measurement and cause inaccuracy or eventually make it fail Vapors fumes Vapors and fumes of gases may radically reduce the measuring range of the device e g chemicals outdoor tanks under sunshine The structure of the stand off pipe should be rigid the inner rim where the ultrasonic beam leaves the pipe should be rounded 150 260 200 265 250 275 Brown Green Yellow Pink Grey White z Shielded Green LED Red LED ECHO TOP VIEW OF THE NECK SECTION JUNCTION BOX Denotation of the color wires Brown Power supply In case of DC power supply the unit is polarity independent Green Power supply The relay is NO type 7 a a ia Three wire installation is possible in case of DC power supply by connecting the GND and Grey Current output the pole of the power supply In this ca2. be ordered up to 30 m Electrical protection Class Ill Ingress protection IP 68 NEMA 6P Weight 1 2 kg 26 lb 2 2 ACCESSORIES User s manual Programming manual CD ROM for versions with HART only 1 x Magnetic screwdriver 1x 2 nut sealing for LTU with 2 BSP process connection material EPDM 1x1 nut 2 2 1 Optional Accessories SAA 110 Transparent pipe connector for LED status observation SFA 300 flange 2 3 ORDER CODE BOX1 BOX2 BOX3 2 4 20mA Relay Transparent pipe connection for LED status observation 2 4 DIMENSIONS 3 INSTALLATION LTU01 B ATTENTION Before mounting the unit in its final position make sure that the programming points of the unit are accessible with the supplied magnet the LEDs are clearly visible and the level of the liquid can be changed between its minimum and maximum during the programming session If any of the above conditions are not met the programming should be carried out before mounting the unit in its final position See 5 Programming When mounted on a pipe we recommend the use of the SAA 110 transparent pipe connector that enables on site programming Positioning The optimal position of the i sonic is between r 0 2 to 0 4 d of the tank This will prevent unwanted interference caused by dome top tanks The sensor face has to be parallel with the surface of the liquid within 2
3. magnetic field Minimum level 0 empty tank assignment to 4 mA Place the i sonic at a distance from the target corresponding to the required minimum level LED indication 1 Check for valid echo O Valid echo received transmitter programmable 2 Place magnet to the symbol A j sonic in programming mode 3 Hold magnet in place O0 Distance assigned to 4mA 4 Remove magnet when all LEDs are off OO Programming completed Use level in tank or a fix target e g the wall Maximum level 100 full tank assignment to 20mA Place the i sonic at a distance from the target corresponding to the required minimum distance maximum level Do not forget to check for valid Echo 1 Place magnet to the symbol B j sonic in programming mode 2 Hold magnet in place O Distance assigned to 20mA 3 Remove magnet when all LEDs are off OO Programming completed Use level in tank or a fix target e g the wall Programming relay switch on point the level where the relay becomes energized Place the i sonic at a distance from the target corresponding to the required switch on point Do not forget to check for valid Echo 2 Place magnet to the symbol B 3 Hold magnet to symbol B 4 Place magnet to the symbol A bade et das of the switch on 5 Remove magnet when all LEDs are off OO Programming completed Use level in tank or a fix target e g the wall Programming relay swi
4. Thank you for choosing an INTEMPCO instrument We are sure that you will be satisfied throughout its use A 2 intempc g 1 APPLICATION The i sonic is a liquid level transmitter measuring by the non contacting ultrasonic ace principle S The transmitter comes with scaleable 4 20 mA output programmable relay and Ultrasonic level transmitter HART communication USER S MAN UAL This intelligent microprocessor based smart level transmitter is suited to measure most liquids under various process conditions The device can be programmed using the supplied magnet or via HART if equipped 2 TECHNICAL DATA 2 1 GENERAL DATA 0 35 10m 1 ft 33 f 0 25 6 m 1 ft 20 ft Materia o o P 30 C 60 C 30 C 60 C 22 F 140 F 30 PC 00 PC 22 F HO 0 3 3 bar 4 43 psi 10 5 40 V DC 3 6 W or 10 5 28 V AC 4 VA 4 20 mA 600 Q galvanically isolated max 250V Outputs Current secondary lightning protection Error indication by the current output programmable programmable 3 6mA 22mA hold last value Rel SPST NO 48 V AC 5 A AC12 etay For indication of echo loss default or for differential level control a Manufacturer Intempco Controls Ltd 2511 Guenette Montreal Quebec H4R 2E9 Phone 514 337 7471 Fax 514 337 7475 E mail info intempco com http www intempco com Electrical connection 6x0 5 mm shielded cable 27 5 mm length 3 m can
5. ance F factory default Xn min measuring distance Error indication by the current output factory default hold last value Relay switching differential if not programmed the relay is for echo loss indication factory default echo loss indication relay NO Damping factory default 60 sec Note Current output can also be assigned in inverted mode 4 mA 100 20 mA 0 Touch Magnet Programming is only possible if the i sonic receives valid echo i e ECHO LED is lit Is the ECHO LED blinking the search for echo is in process In case of i sonic with HART communication LTU01 4 Touch Magnet Programming is only possible if the transmitter is in the LEV measuring mode factory default Thus the relay switching difference between ON and OFF must be greater than 20 mm Interpretation of LED statuses LEDis on LED is blinking LED is off LEDs are blinking alternatively The left side LED symbol in the programming table below corresponds to the GREEN LED while the right side LED corresponds to the RED LED of the device Green LED Programming Open up the supplied screwdriver to access the magnet When programming put the magnetic part to one of the symbols f A or f B according to the programming sequence described below and check the LEDs for their status magnet screwanver Es Make sure that after programming the unit will not be exposed to a strong
6. ed or sterilized by the User Repairs during or beyond guarantee period are carried out solely by the manufacturer 7 STORAGE CONDITIONS Environmental temperature range 35 60 C Relative humidity max 98 8 WARRANTY All Intempco products are warranted free of defects in materials or workmanship for a period of one year from the date of purchase Repairs under guarantee are carried out at the Manufacturer s premises The Purchaser is liable for costs of dismantling and re installation as well as transport costs Intempco shall not be liable for misapplication labor claims direct or consequential damage or expense arising from the installation or use of equipment Technical specification may be changed without notice
7. in programming mode 2 Place magnet to the symbol A O 10 sec repeatedly to select the required damping OO 30 sec 60 sec 3 Place magnet to symbol B OO Programming completed Note If your process allows it leave the Damping at factory default 60 sec Change it only if your process is fast and the output can not track the level RESET to factory default Place the i sonic against a target to obtain valid Echo required for programming po Action teDindication 4 Remove magnet when all LEDs are off Indication of programming error by the LEDs Attempted programming blinking twice No Echo Find valid echo Attempted programming blinking three times access denied access code Access code can be activated through active HART only Attempted programming blinking four times i sonic not in LEV meas RESET the i sonic mode Programming of the relay blinking alternately switch differential too small Set switch differential greater than 20mm 6 MAINTANCE REPAIR The unit may require occasional maintenance of the sensor face by cleaning its surface especially where sticky adhering liquid may splash on it A thin layer of dirt may not cause any trouble however heavily fuming chemicals may reduce the efficiency of the sensor Cleaning of the sensor face must be carried out in a way that does not harm polypropylene Equipment sent back for repair should be clean
8. se galvanic isolation is not provided White GND Shielding To be grounded TENN Brown Power Supply Extending the cable MPRI enna Green 10 5V 28V AC v When extending the cable use a junction box 10 5V 40V DC Shielding of the unit cable and that of the extension cable should be connected and Current lout A grounded at the end of the extension cable Output GND Extend only wires required for the purpose of the application Relay Yellow Output AmMaAaa oOSPra Shielding 5 PROGRAMMING 0 4 10 20 mA Se After performing electrical installation according to 4 the unit is ready for operation For ultimate temperature compensation accuracy switch on the device 1 hour before programming Programming can be performed in two ways e On site using the liquid level as reflecting surface only if the programming points are accessible on the unit the LEDs are visible and the level of the liquid can be changed between the its minimum and maximum during the programming session e Off site using a flat object as reflecting surface e g table or wall The following features can be programmed using Touch Magnet Programming with the supplied magnetic screwdriver Assignment of the 4mA analogue output to a required min level max distance E factory default X max measuring distance Assignment of the 20mA analogue output to a required max level min dist
9. tch off point the level where the relay becomes de energized Place the i sonic at a distance from the target corresponding to the required switch off point Do not forget to check for valid Echo LED indication 1 Place magnet to the symbol A j sonic in programming mode 2 Place magnet to the symbol B O Programming in progress 3 Hold magnet to symbol B Programming in progress 4 Keep holding magnet to B O a of the switch off 5 Remove magnet when all LEDs are off OO Programming completed Use level in tank or a fix target e g the wall Note To re configure the relay for indication of ECHO LOSS perform a RESET see later that will reset all parameters to default Programming Error indication by the current output Place the i sonic against a target to obtain valid Echo required for programming 1 Place magnet to the symbol A j sonic in programming mode 2 Place magnet to the symbol B OO Hold last value repeatedly to select the required error O 3 6 mA indication mode 22mA 3 Place magnet to the symbol A OO Programming completed Note The current output will be according to the selected error indication 3 6 mA 22 mA or the last measured value as long as the error continue to exist Damping Place the i sonic against a target to obtain valid Echo required for programming 1 Place magnet to symbol B i sonic
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