S.T.A. BRANCA IDEALAIR
Contents
1. CONDITION EXPLANATIONS SUGGESTIONS AND ADVISES It shows the presence of a danger with accident risk like the us er death too It represents an advice of possible danger for the user It shows a notice a carrying function indication or suitable in formation for the operator Please pay much attention to those paragraphs where this symbol is shown FURTHER It shows that there are further indications These indications I NFORMATI ON have not a direct relation with a function description or an activi ty development but knowing them it could be interesting to deep in an argument they send you to read further documenta tion too S T A BRANCA IDEALAIR di Branca Barbara amp C Sass 21020 Via Torino 583 6 Mercallo VA I TALY Tel 0331 968 333 130 Fax 0331 968281 E mail info brancaidealair it Web www brancaidealair it Page 3 O perating manual 1 2 Safety general rules We advise the user to read carefully the operating manual and to understand the meaning of paragraphs explanations Before carrying out any maintenance service where instrument can be off unplug the cable of power supply Do not put any materials gas inflammable or explosive liquids closes to the instru ment Before cleaning the instrument disconnect the power supply cable Clean the instrument with a damp cloth Do not use liquid or spray products Do not work with the instrument closed to water source Do not place the instrument on2. NON LINEAR FACTOR NLF The second test method is the measure of the NLF Non Linear Factor When turbulence happens the measured airflow resistance is higher than in the linear range This might lead to an undesired change of the acoustic performance of the final component It is possible to measure this deviation by calculating the ratio between two measured values of specific air flow resistance respectively at laminar and turbulent airflow usually at 0 2 m s and 2 m s airspeed Examples of applications requiring NLF measures Acoustic devices performance across narrow slots Acoustic devices nonlinear performance at very high Sound Pressure Level Sound suppression panels working at high SPL AIR PERMEABILITY The air permeability measure is mainly aligned to common Standards for Textiles ISO 9237 It states to measure the airflow through the sample at assigned pressure drop usually 200 Pa or 0 5 WG 127 Pa This is not fully representative of the expected acoustic behavior but it is a very popular and widely used measure for Textiles S T A BRAN CA IDEA LAIR di Branca Barbara amp C S a s 21020 Via Torino 583 6 Mercallo VA I TALY Tel 0331 968 333 130 Fax 0331 968281 E mail info brancaidealair it Web www brancaidealair it Page 11 O perating manual 6 MAINTENANCE 6 1 Preventing maintenance Branca Rayls doesn t need any particular maintenance operations Carry out preventive main
3. Here below drawings No 1A and 1B show overall sizes on front view and side view of Branca Rayls The overall sizes measure unit are expressed in millimeter mm 60 IL Ls TTT i A A 450 lt 555 _ Drawing No 1A Side view Drawing No 1B Front view S T A BRANCA IDEALAIR diBranca Barbara amp C Sa s p 6 21020 Via Torino 583 6 Mercallo VA I TALY age Tel 0331 968 333 130 Fax 0331 968281 E mail info brancaidealair it Web www brancaidealair it O perating manual 3 GENERAL DESCRIPTION AND TECHNICAL DETAILS 3 1 General purpose The instrument BRANCA RAYLS was designed and built by S T A Branca I dealair according to directions from SAATI Spa in order to develop specific testing procedures on acoustic materials like SAATI FIL ACOUSTEX The original test area is 50 cm2 and together with the instrument they are supplied also the test area reduc tions of 20 10 5 2 1 cm the user can find five pairs of test area reductions for the upper and lower flanges inside an auxiliary tray supplied with instrument itself 2 4 The BRANCA RAYLS is equipped with a monochromatic liquid crystal 5 HMI display LCD 3 color touch screen 2 5 suitable for user interface which allows to set parameters configuration checking and moni toring test operations and evaluating test results at the end of each test procedure Drawing No 2 Front view Drawing No 3 Suction unit
4. LEGEND Test area 50 cm2 with magnetic clamping Control board panel USB port Adjustable feet Presence of voltage signaling lamp External USB slot ASCII printer ON OFF switch ASCII printer Magnetic clamping switch HMI panel operator 4 0 Air flow circuit Suction unit Suction unit cooling ventilator S T A BRAN CA IDEALAIR di Branca Barbara amp C Sa s p 7 21020 Via Torino 583 6 Mercallo VA ITALY age Tel 0331 968 333 130 Fax 0331 968281 E mail info brancaidealair it Web www brancaidealair it O perating manual Judi Technical specifications The Branca Rayls resumes the following technical specifications Measure unit MKS Rayls Acoustic impedance and NLF CGS Ohms 1cm2 Acoustic impedance and NLF NLF Non linear factor mim s Air permeability m s Air permeability I min Airflow for air permeability test Measuring range For Specific Airflow Resistance Acoustic impedance Air velocity range from 0 1 to 0 5 m s For NLF Air velocity range R1 from 0 1 to 0 5 m s Air velocity range R2 from 0 8 to 2 m s For Air permeability Test area 50 cm from 2 8 to 322 mm s test area Test area 38 cm from 3 7 a 424 mm s with reduction Test area 20 cm from 6 9 a 806 mm s with reduction Test area 10 cm from 13 9 a 1611 mm s with reduction Test area 5 cm from 27 8 a 3222 mm s with reduction Test area 2 cm from 69 4
5. sample Sample Upper reduction flange Lower reduction flange S T A BRAN CA IDEA LAIR di Branca Barbara amp C S a s 21020 Via Torino 583 6 Mercallo VA I TALY Tel 0331 968 333 130 Fax 0331 968281 E mail info brancaidealair it Web www brancaidealair it Page 13
6. unsteady surfaces It could fall and get seriously damaged Do not place the instrument on soft surfaces or in poorly ventilated environments To safe instrument connecting cables from any damages install it in a correct way Pay attention to the electrical supply marked on the instrument label and use the Same Contact the technical service in case you are not sure Do not obstruct right side filtering panel during the operations Do not put any kind of objects inside the instrument they could cause a short circuit or damage internal parts affecting its correct functioning Do not spill liquids on the instrument Do not carry out technical operations on the instrument without consulting scheduled maintenance operations indicated in the user manual Disconnect the instrument from the power supply and repair it by a specialized tech nician if any of the following conditions should occur the power supply connector has been damaged the liquid has penetrated inside the instrument the instrument has been exposed to rain or water the instrument is not working correctly despite user s manual instructions have been well followed the instrument has been dropped and its case damaged the instrument does not work S T A BRANCA IDEALAIR di Branca Barbara amp C Sa s 21020 Via Torino 583 6 Mercallo VA I TALY Tel 0331 968 333 130 Fax 0331 968281 E mail info brancaidealair it Web www brancaidealair it Page 4 O per
7. 0 Fax 0331 968281 E mail info brancaidealair it Web www brancaidealair it Page 9 O perating manual 5 START UP AND USE 5 1 Preliminary operations Place the instrument in a fixed position and put it in level acting by adjustable feet Block the nuts of adjustable feet to prevent it by any vibrations and or bumps Be sure that the main switch isn t on Connect the instrument plug to an electrical socket in accordance with the power supply marked on the in strument label Pressing the main switch the instrument shows the presence of voltage through the lamp AST Switch on the instrument just pressing the switching on interrupter L42ST and the HMI panel operator and lamp AVV switches on too Before performing the test choose the test area in according with the following instructions Permeability value between 2 8 to 322 mm s use 50 cm test area Permeability value between 13 9 to 1611 mm s with 20 cm reduction Permeability value between 27 8 to 3222 mm s with 5 cm reduction Permeability value between 69 4 to 8056 mm s with 2 cm reduction Permeability value between 139 1 to 16112 mm s with 1 cm2 reduction S ee Place one of chosen supplied reduction and the testing sample between the flanges fixing it by the knob 2 6 TEST PROCEDURES PRELI MI NARY OPERATI ONS BY THE OPERATOR 1 Place the sample between the two flanges checking its correct position on the test area 2 Close the upper flange in
8. S T A BRANCA IDEALAIR Mercallo VA ITALY BRANCA RAYLS 37X OPERATI NG MANUAL S T A BRANCA IDEALAIR 21020 Via Torino 583 6 Mercallo VA ITALY Tel 39 0 331 968333 Fax 39 0 331 968281 Email info brancaidelair it Web www brancaidealair it O perating manual 0 INTRODUCTION 1 GENERAL RULES AND NOTICES Symbols in the text Safety general rules Destination of the operating manual Suitable use and unsuitable use 1 4 1 Suitable use 1 4 2 Unsuitable use D Nameplate 6 Overall size AL nd h Roh o 2 DESCRIPTION TECHNICAL I NDI CATI ONS AND DETAILS 2 1 General purpose 2 2 Technical specifications 2 3 Noise information 2 4 Printer optional 3 INSTALLATION AND TRANSPORT 3 1 Adjustment and transport 2 Installation 4 START UP AND USE 4 1 Preliminary operation 4 2 Test procedure 5 MAI NTENANCE 5 1 Preventing maintenance 5 2 Corrective maintenance 53 Instrument 6 OUT OF ORDER DEMOLITION AND DISMANTLING 6 1 Out of order 6 2 Demolition 6 3 Dismantling 7 USI NG MATERIALS AND SPARE PARTS LIST 8 ENCLOSURES 8 1 Enclosure A Electrical scheme S T A BRAN CA IDEA LAIR di Branca Barbara amp C S a s 21020 Via Torino 583 6 Mercallo VA I TALY Tel 0331 968 333 130 Fax 0331 968281 E mail info brancaidealair it Web www brancaidealair it Page 2 O perating manual O INTRODUCTION The operating manual has to be considered as an integral part of the i
9. TLING 7 1 Out of order As soon as you want to put Branca Rayls out of order follow all operations mentioned at paragraph 4 2 but beginning by the last operation and always remember the safe and precaution indication These operations have to be done by qualified personal As soon as you want to work with the instrument once more follow chapters 4 and 5 7 2 Demolition AP is equipped with metallic assembled components above all set off the instrument and do further discon necting operation as per the material manufacture Divide plastic material parts by iron ones so that to send them to the differentiating collection 1 9 Dismantling Wooden case paper carton and plastic material compose the instrument package To respect the environ ment divide these materials by plastic and iron ones before dismantling them All materials have not to be getting away in domestic dustbin but in suitable dismantling centers S T A BRANCA IDEALAIR di Branca Barbara amp C Sas 21020 Via Torino 583 6 Mercallo VA I TALY Tel 0331 968 333 130 Fax 0331 968281 E mail info brancaidealair it Web www brancaidealair it Page 12 O perating manual 8 SPARE PARTS LI ST Here below we list all using materials and spare parts 9 ENCLOSURES 9 1 Enclosure A test surface reductions view Testing surface reductions to be used for samples with absence of air lateral passage Correct installation on testing surface area for reductions and
10. a 8056 mm s with reduction Test area 1 cm from 139 1 a 16112 mm s with reduction Pressure drop Range from 0 to 900 Pa from 0 to 90 mmWG Test area 50 cm std value for specific airflow resistance and NLF test Test area reductions 38 cm 20 cm 10 cm 5 cm 2 cm 1 cm Minimum volumetric counter air flow 50 liters per hour Maximum volumetric counter air flow 5800 liters per hour Volumetric counter air volume 10 liters or 100 liters Checking periods Air permeability test 5 MKS Rayls 05 CGS Acoustic Ohms 1cm2 Maximum permitted error MPE 3 0 0 Power supply 110V Single phase AC 60 Hz Dimensions Lx W xH 555 X 450 X 1060 mm Net weight 60 kg S T A BRANCA IDEALAIR diBranca Barbara amp C Sa s 21020 Via Torino 583 6 Mercallo VA I TALY Tel 0331 968 333 130 Fax 0331 968281 E mail info brancaidealair it Web www brancaidealair it Page 8 O perating manual 3 3 Noise information The A weighted sound pressure level made by the instrument during the operation is lower than 70 dB A 4 INSTALLATION AND TRANSPORT 4 1 Adjustment and transport Branca Rayls is usually well protected by special shockproof materials during packaging operation and if re quired on order it could be packed in a suitable wooden case The instrument can be transported at a temperature from 5 45 C verify such limits as soon as it is placed in a stock To move the Branc
11. a Rayls till its final place carry it by an elevator trolley or a trans pallet We advise you to do these moving operations by qualified personnel As soon as you receive goods check packaging is safe and verify that there are no damages caused by the transport Inform the shipping agent for each compared damage within and not later than 8 eight solar days from goods acknowledgement if you suspect an internal damage accept goods with a checking reser vation The responsibility for each damage caused by the transport Is only due to the shipping agent 4 2 Installation Branca Rayls has to be placed in a suitable room the floor has to be solid and in level in any case suitable to sustain the instrument WARNING it is absolutely prohibited to expose the instrument outside even if under a roof unless it has been produced for this purpose WARNING it is dangerous if in the room there are heating sources explosive atmosphere burning risk high dusts concentration or oil substances presence in the air WARNING Transport installation maintenance and starting on working have to be done by qualified personal and checked by responsible technical personal too Be sure to observe all technical and specification data mentioned in the present operating manual the instru ment mark and all enclosed documentation S T A BRANCA IDEALAIR di Branca Barbara amp C Sass 21020 Via Torino 583 6 Mercallo VA I TALY Tel 0331 968 333 13
12. ating manual 1 3 Destination of the operating manual This operating manual is referring to the following figures QUALI FI ED USER who knows very well all general safety rules shown in this manual and all neces Sary operations for the right use and the programmed maintenance plan QUALI FI ED TECHNICIAN who can execute preventing and correcting maintenance operations just in accordance with suitable training stage and having original spare parts The operating manual reports just necessary instructions for the qualified personnel and for a correct instrument operation Qualified user For more detailed information contact the supplier always mentioning details written on the identification nameplate The operating manual includes drawings defined with a reference number Components shown on the photos could be associated to a legend in this case each component has an identification number which is associated to the electrical drawings The components are in dicated in the text in square brackets and identified with a Ref number 1 4 Suitable use and unsuitable use 1 4 1 Suitable use Branca Rayls 37X allows to perform the following test procedures 1 2 3 Specific airflow resistance or Acoustic impedance expressed in MKS Rayls or CGS Ohms re ferred to 1 cm2 representing the result of pressure difference across the sample divided by the lin ear velocity of the airflow Non Linear factor which allows to
13. check the behavior of the sample at a very high air velocity turbulent air flow Air permeability which pass perpendicularly across a sample under examination under a deter mined pressure and time according to the norm Standard I SO 9237 97 For this reason the instrument has to be exclusively used with monofilament woven mesh for acoustic use SAATI materials with other textile materials having thickness up to 3 mm within temperature limits described on this manual with power supplies listed in the instrument nameplate with all lateral inspection panels closed far from heat sources with all safety devices on To guarantee a long life of the instrument please do the preventive maintenance opera tions regularly according to the servicing plan shown at paragraph 5 1 A wrong use of the instrument could cause irreversible damages causing dangerous conditions to the operator S T A BRANCA IDEALAIR di Branca Barbara amp C Sass 21020 Via Torino 583 6 Mercallo VA I TALY Tel 0331 968 333 130 Fax 0331 968281 E mail info brancaidealair it Web www brancaidealair it Page 5 O perating manual 1 4 2 Unsultable use The instrument is not used with the following conditions Different conditions from those mentioned at paragraph 2 4 1 Explosive atmosphere high dusts concentration or oil substances presence in the air Atmosphere with high burning risk Bad weather exposure 1 5 Overall size
14. nstrument and it has to be conserved together with it we suggest that the reading of the operating manual just to the qualified users who has to work with the instrument Remember that it is very important to read carefully this manual before using the instrument avoiding any mistakes and anomalous operations We suggest to consider GENERAL RULES AND NOTI CES listed in the manual strictly they describe ex ecutive modalities of particular operations and if they are not followed correctly they could give damages to people and instrument too Following all indications presented in this manual the user operates correctly and acquires the servicing management too Remember that using original spare parts you will grant a good instrument efficiency reliability and a long operating life to instrument itself 0 1 Guarantees Every furnished instrument is regularly tested and it is guaranteed for a period of 12 months from the date of the delivery except if otherwise established in the contract Such guarantee is exclusively applied if the Customer respects the contractual and administrative norms if the installation has been performed by the Customer the guarantee has validity only if all the instructions contained in the manual have been respected Such guarantee hocks the company STA BRANCA IDEALAIR to repair or to replace all the dam aged parts or those originally defectives 1 GENERAL RULES AND NOTI CES 1 1 Symbols in the text
15. order that the sample is tightly fixed closing any later passage of the air 3 Push the button 142MAGN to activate the magnetic closure and check if the sample is correctly fixed for different sample thickness it might be necessary to adjust the magnetic clamp leverage 4 Select the desired test procedure 5 Configure correctly test parameters 6 START TEST S T A BRANCA IDEALAIR di Branca Barbara amp C S a s 21020 Via Torino 583 6 Mercallo VA I TALY Tel 0331 968 333 130 Fax 0331 968281 E mail info brancaidealair it Web www brancaidealair it Page 10 O perating manual MKS RAYLS TEST SPECI FI C Al RFLOW RESI STANCE MKS Rayls also called Acoustic impedance MKS Rayls test procedure states to calculate the ratio between pressure drop Pascals and air velocity me ters per second crossing the sample material The airflow must be sufficiently low to obtain laminar non turbulent airflow through the sample in order to properly define the airflow resistance in a linear range The output of the measure is the value of MKS Rayls Pa s m Defined as ratio between pressure drop and air velocity The higher the MKS Rayls value the higher the sound dampening through the mesh ATTENTION When the 24 result is stored the machine shows a warning that the results buffer is full No more tests can be done until the results are saved on the PC via the software or printed or cleared NON LINEAR FACTOR
16. tenance accord ing to the servicing plan programmed maintenance here below mentioned A good maintenance plan guar antees a long time operation preventing it from eventual damages or bad operations FREQUENCY OPERATOR SERVI CI NG OPERATIONS Every Six Qualified The instrument is equipped with an air pre filter to avoid the presence of months dust inside the volumetric counter It is necessary to clean the filter with compressed air and the inner spaces too In order to do it please disconnect the power supply cable and remove the filter on the right side of the instru ment 6 2 Corrective maintenance In presence of failures or malfunctions please contact the technical assistance service S T A BRANCA IDEALAIR mentioned at paragraph O 6 3 Auto calibration At the start up and every 30 minutes period the system runs an automatic calibration check of the pressure transducer it might require to go on with the full automatic calibration procedure as shown in the following screens The entire calibration cycle will take less than 30 seconds 6 4 Periodical calibration check with reference template IMPORTANT Carry out the instrument check using the calibration template periodically Input the test area written on the template and regulate the correct pressure drop according The air permeability value has to be the same written on the supplied template with an uncertainty of 3 7 OUT OF ORDER DEMOLITI ON AND DISMAN
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