Delta OHM DO 9847K Manual Download

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Dimensions

AP472 S1

AP472 S2

AP472 S4

Unscrew the handle (3) holding the probe body still in the point (1).

Summary of Contents for DO 9847K

Page 1: ...PORTATIF MULTIFONCTION COLLECTEUR DE DONN ES TRAGBARES MULTIFUNKTIONSGER T DATALOGGER INSTRUMENTO MULTIFUNCION PORTABLE DATALOGGER It measures Temperature Relative humidity Pressure Barometric Absolu...

Page 2: ...2 Ti A1 b1 c1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33...

Page 3: ...Key LEFT UP in the menu it shifts the cursor up or to the left in measurement it increases the display contrast 17 RS232C 9 pole connector 18 External auxiliary power supply connector 19 Key RIGHT DO...

Page 4: ...ord Logging difference between two channels relative measure ment hold Reserved functions with user password Standard RS232C serial port Immediate printing of the measured values or of their differenc...

Page 5: ...nditions with the indications of the first free channels available among A1 B1 C1 A2 B2 C2 A3 B3 C3 and Ti 3 sec If for example a module for measuring the combined humidity and temperature is connecte...

Page 6: ...firmware version the serial number and the last calibra tion date of the instrument and of the connected probes 1 Config for managing the reserved functions with password 2 Logging for setting the log...

Page 7: ...obes Key 1 MATH In the menu it writes the number 1 in measurement it manages mathematical operations and data handling Key 2 LOG In the menu it writes the number 2 in measurement it starts the Logging...

Page 8: ...OUT In the menu it writes the number 4 in measurement it enables the submenu for managing the opera tions connected with the RS232C serial output the data are printed in table form The functions that...

Page 9: ...ores the maximum mean and minimum values of the three channels The function F1 rcdGO starts logging at a rate of one sample per second the sym bols B and R or only R if an external power source is con...

Page 10: ...temperature probe connected to the instrument appears on the first Ti A1 b1 c1 line of the display when the function key F1 is pressed the measurement will be displayed in C in F and in K When the key...

Page 11: ...display contrast if the key is pressed when outside the menu it decreases the display contrast Function key F1 Function key F1 The function performed by this key varies according to the active operat...

Page 12: ...Use of the Hold key Ti A1 b1 c1 CURRENT MEASUREMENT press A1 b1 c1 MEASUREMENT FROZEN the message HOLD appears the values on the display are not updated press Ti A1 b1 c1 CURRENT MEASUREMENT 7 HOLD 7...

Page 13: ...The display shows the relative measurement equal to zero if the input signal has not varied in the mean time A1 b1 c1 The display shows the relative measurement Chan nels A and C have increased chann...

Page 14: ...this case the symbol will ap pear on the left side of the instrument In addition to the variables associated with each probe A1 A2 A3 B1 C3 you can also select the difference between two of the three...

Page 15: ...ch function 0 INFO Information The Info function provides information about firmware serial number and date of calibration of both the instrument and the connected probes Press Enter to jump from the...

Page 16: ...t time after changing the batteries or af ter reset the user password is automatically set at 12345678 1 2 ESC exit cancel 12345678 If user level is enabled current password is proposed 0 1 2 3 4 5 7...

Page 17: ...A uses the factory calibration and is con figured so as use the user calibration 1 1 ESC exit cancel Current type of calibration factory of the probe connected to input A To quit the function without...

Page 18: ...sub function With the key 1 MATH choose the desired type of operation always on stay on or on off shut off and then quit pressing the ESC CLR key 2 2 Start stop time Starting and stopping of logging...

Page 19: ...ry to cancel the operation After having viewed the settings to quit leaving the autostart operation active press ESC To cancel the operation press the key 1 MATH 2 1 3 ESC exit cancel Cancelling autom...

Page 20: ...log files 2 4 ESC exit cancel ESC exit cancel 0 1 2 3 4 5 7 9 6 8 The function 2 4 Log file manager is subdivided into 4 sub functions with which it is possi ble to see print or delete the log files...

Page 21: ...isplay not more that three variables at a time these files aren t displayed but they can be transferred to a PC with the function PRINT SELECTED LOG 2 4 2 Erase Selected Log 2 ESC exit cancel ERASE A...

Page 22: ...S232C serial connection 4 ESC exit cancel 0 1 2 3 4 5 7 9 6 8 4 0 Baud Rate It is possible to set the baud rate of the serial communication from 300 to 115200 baud The default value is 19200 On the se...

Page 23: ...e by pressing the number next to each probe takes you to the calibration menu 5 1 ESC exit cancel calibration of the probe connected to input A is started 0 1 2 3 4 5 7 9 6 8 Each type of probe has it...

Page 24: ...the pipe area or the area of the outlet vent vertically posi tioned with respect to the flow to set this parameter select item 1 Area calculations The unit of measurement to be used is cm2 for the me...

Page 25: ...cancel cm ft Enter the value of the circular surface diameter using the Up and Down arrows The value has to be expressed either in cm or in ft according to the selected unit of measurement metric or...

Page 26: ...Up and Down arrows to enter the temperature value directly and press ENTER to confirm To switch from Celsius to Fahrenheit and vice versa press 9 UNIT 8 2 Flow Averaging Time When measuring flows the...

Page 27: ...ce for atmospheric pressure An example the Pitot tube for air velocity measurements Press either 1 MATH 2 LOG or 3 TIME to select the atmospheric pressure detected by the modules connected to A B or C...

Page 28: ...has been a variation for example because a probe has been disconnected it notifies the opera tor with the message WARNING CHANGE OF PROBES DETECTED Press NOW any key to choose settings or wait to sel...

Page 29: ...is not necessary when some points are lacking the instrument will use for those points the value stored in the previous calibration or if no previous value is available it will use the factory calibr...

Page 30: ...ts that describe the curve T f R used by the programme for finding the temperature as a function of the resistance of the PRT sensor PRT see the appendix for details The following example shows how to...

Page 31: ...s of the module inside is the printed circuit to which the PRT probe must be connected The connections are shown in the enlargement in the figure DR DR SN SN DR DR SN SN Pt100 Pt25 Pt500 Before making...

Page 32: ...ent to use for viewing and printing from among those allowed with thermocouple probes C F or K see the instructions for selecting the unit of meas urement on p 10 Calibration of Thermocouple Probes Fo...

Page 33: ...merse the probe in it or the two probes of the double module Wait until the probes have reached the bath temperature and then press ENTER The follow ing screen appears Zero Point 0 0 c 0 55 c 0 30 c W...

Page 34: ...he temperatures read by the input channels A and B and an estimated value of the oven temperature in the figure above the instrument has found the temperatures 100 55 C and 100 30 C for channels A and...

Page 35: ...rams of vapour in a kilogram of dry air 3 g m3 grams of vapour in a cubic metre of dry air 4 J gr enthalpy 5 Td dew point C 6 Tw wet bulb temperature C 7 Td dew point F 8 Tw wet bulb temperature F 9 S...

Page 36: ...eading where there are no large differences in tempera ture is almost immediate instead in the presence or small differences you must wait until the probes and the probe body have reached thermal equi...

Page 37: ...To quit the function without making any changes press ESC CLR 2 Cal sensor temp for Pt100 or thermocouple sensor temperature probes requires a calibration oven and a reference thermometer Press the ke...

Page 38: ...e outside getting into the chamber 6 Wait at least 30 minutes 7 Press the key 0 to select the calibration version 0 Full calibration a message will ap pear reminding you that if you continue all the d...

Page 39: ...essed the instrument will propose the value measured and compensated in temperature this will be 11 3 RH if the probe and the saturated solution are at 20 C Press ENTER to conclude calibration 19 Remo...

Page 40: ...ainer Close the container with its cap 10 Unscrew the ring nut with the cap screw on the sensor protection This operation concludes calibration and alignment with a specific point of the RH Important...

Page 41: ...sy to quantify the relationship between the measurement of a single variable and its effects on human beings it is much more difficult to provide an indication of the combined effect deriving from all...

Page 42: ...T temperature in C H relative humidity in and v air velocity in m s NI provides the so called apparent temperature in fine climatic conditions the Net Index ap proaches the T temperature expressed in...

Page 43: ...ng unit The 9 UNIT key changes the measuring unit of the instantaneous and peak values The following units of measurement are available Pa hPa kPa mbar atm mmHg mmH2O kfg cm PSI inchHg Some units of m...

Page 44: ...robe open so that they can measure the same pressure and then press the 0 reset key The message null_A null_B or null_C appears in the controls bar according to which input the module is connected to...

Page 45: ...f DO9847 and switch on the instrument 2 Enter into the Menu with the proper key and select the heading 5 Calibrate with the 5 DATACALL key The list of the modules connected to the instrument is displa...

Page 46: ...measurement require a multiplicative factor 3 at the top means that the displayed value has to be multiplied by 1000 Zero Command Differential probes might cause a slight difference between the two i...

Page 47: ...re probes measure streams having an 80 C max temperature vanes reach 120 C while Pitot tube probes measure the velocity of air streams having temperature up to 600 C according to the model Measurement...

Page 48: ...e from a point to another and their performance over the time in the same position but in subsequent moments this is particularly true when the involved area is quite big and when some turbulences are...

Page 49: ...of this function see page 26 Flow averaging time paragraph Note grills and diffusers with reclining fins cause stream measurement errors because of turbu lences These turbulences develop because part...

Page 50: ...nd AP471S3 measure the environment temperature in the range of 30 C 110 C AP471 S4 AP471S5 and AP471 S6 probes in the range 0 C 80 C AP471 S1 AP471 S3 Zero Command The AP471S modules are fac tory cali...

Page 51: ...flow instantaneous values will be cleared Operation To reduce battery consumption upon the in strument power on air velocity and flow indi cations are in a stand by condition and the message Probe STD...

Page 52: ...easurements have to be carried out The probe is very delicate and has to be handled with care Even in case of light impact the probe can be damaged most of all for omnidirectional probes which sensor...

Page 53: ...53 Dimensions 85 87 200 min 880 max 13 8 AP471 S1 110 13 8 AP471 S2 85 87 102 200 min 880 max 13 8 AP471 S3 AP471 S6...

Page 54: ...54 MIN 350 MAX 1020 120 AP471 S4 AP471 S5...

Page 55: ...cy Velocity 0 05 m s 0 05 0 99 m s 0 02m s 0 05 0 99 m s 0 2 m s 1 00 9 99 m s 0 1m s 1 00 5 00 m s 0 6 m s 10 00 40 00 m s Temperature 0 4 C 30 110 C 0 4 C 0 4 C Min Velocity 0 05 m s Air Temperature...

Page 56: ...Thermocouple K 16 AP472 S4H 10 50 25 80 working tem perature 16 AP472 S4HT on request 10 50 30 120 Thermocouple K 16 Temperature limit refers to the probe where the vane and temperature sensor are lo...

Page 57: ...vided in the first paragraphs of this chap ter Probe Care and Maintenance Probe performances particularly at lowest speeds depend on the friction with which the vane turns around its own pivot Low fri...

Page 58: ...58 Dimensions AP472 S1 AP472 S2 AP472 S4 Unscrew the handle 3 holding the probe body still in the point 1...

Page 59: ...d 16 mm Unscrew the handle 3 holding the probe body still in the point 1 Screw the rod end AP471S1 23 6 5 on the screw 2 You can add more telescopic rods AP471S1 23 6 The last element can be the handl...

Page 60: ...Velocity 0 1 m s 1 5 f s 0 1m s 1 5 f s 0 2 m s 1 0 f s Temperature 0 1 C 0 1 C 0 1 C Min Velocity 0 6m s 0 3m s 0 8m s 10m s Unit of Measurement Velocity m s km h ft min mph knots Flow l s m3 s m3 m...

Page 61: ...ssure The pressure inside the duct is the result of three different pressures 1 atmospheric pressure barometric B 2 static pressure Ps 3 dynamic pressure Pv due to the non null velocity of the air ins...

Page 62: ...urements provided by the modules are air velocity and differential pressure Pv A1 B1 o C1 air temperature measured by a thermocouple A2 B2 or C2 flow A3 B3 or C3 Press 9 UNIT to select the units of me...

Page 63: ...rature is measured by a thermocouple connected to the module when available As alternative another source can be selected choosing 8 1 Comp Temp select in the menu see page 26 The same procedure appli...

Page 64: ...essure 0 25 f s of pressure Temperature 0 1 C 0 1 C Min Velocity 2 m s Compensation of Air Temperature 200 600 C if thermocouple type K is connected to the module Units of Measurement Velocity m s km...

Page 65: ...hen with the key 9 UNIT select the desired variable from the three available In the same way to view one of the variables corresponding to points 4 or 5 select the variable A2 or B2 or C2 then with th...

Page 66: ...arity of the signals the figures below show the connections for the solarimeter Delta Ohm LP PYRA 02 and the two albedometers LP PYRA 06 and LP PYRA 05 In the case of a single output solarimeter LP PY...

Page 67: ...67 LP PYRA 06 BLACK SHIELD BLACK SHIELD RED RED BLUE BLUE UPPER TERMINAL BOARD LOWER TERMINAL BOARD Electrical connection of the VP472 module to the albedometer LP PYRA 06...

Page 68: ...er the time of acquired measurements and can contemporaneously show on the display three lines in stant measurements integrated measurements and time in seconds A number of limits settable from menu c...

Page 69: ...as been detected wait for a few seconds The instrument will turn off and on immediately after displaying 3 measurements A1 light instant measurement A2 integration time and A3 Q integral If more probe...

Page 70: ...the arrows to move from a character to the other Press ENTER to confirm 1 To clear the value of a limit time previously set press 4 to activate the 4 reset T_lim to 0 command press 5 to activate the...

Page 71: ...t limit is reached the relevant indication will be displayed If this limit is represented by time then all integrations are stopped and scrolling through variables A3 B3 and C3 the values of integrals...

Page 72: ...lay Unit Error 0 5 f5 Fatigue 0 5 Operating Temperature 0 50 C LP 471 LUM 2 LUMINANCE Probe Equipped with SICRAM Module Specifications refer to the instrument combined to the module Measuring Range cd...

Page 73: ...1 999 19 99 199 9 1999 Resolution W m2 0 1 10 3 0 001 0 01 0 1 1 Spectral Response Range 400nm 1050nm Calibration Uncertainty 5 Cosine Response 6 Linearity 1 Display Unit Error 1digit Fatigue 0 5 Ope...

Page 74: ...g Range mol m2 s 0 01 19 99 199 9 1999 9 99 103 Risoluzione mol m2 s 0 01 0 1 1 0 01 103 Spectral Response Range 400nm 700nm Calibration Uncertainty 5 Cosine Response 6 Linearity 1 Display Unit Error...

Page 75: ...9 19 99 199 9 1999 Resolution W m2 0 1 10 3 0 001 0 01 0 1 1 Spectral Response Range 315nm 400nm Peak 360nm Calibration Uncertainty 5 Cosine Response 6 Linearity 1 Unit Display Error 1digit Fatigue 0...

Page 76: ...9 199 9 1999 Resolution W m2 0 1 10 3 0 001 0 01 0 1 1 Spectral Response Range 280nm 315nm Peak 305nm Calibration Uncertainty 5 Cosine Response 6 Linearity 1 Unit Display Error 1digit Fatigue 0 5 Oper...

Page 77: ...9 199 9 1999 Resolution W m2 0 1 10 3 0 001 0 01 0 1 1 Spectral Response Range 220nm 280nm Peak 260nm Calibration Uncertainty 5 Cosine Response 6 Linearity 1 Unit Display Error 1digit Fatigue 0 5 Oper...

Page 78: ...oltage output Vdc Vin Module connections VP473 to an active transmitter with voltage output The module SICRAM IP472 read the continuous current applied at its input in the range 0 24mA with a input sl...

Page 79: ...probe come in contact with sticky surfaces or with substances that can corrode or damage the probe If the sensor breaks or becomes faulty it must be replaced In this case the probe must be recalibrate...

Page 80: ...20 The automatic cut out after 8 minutes of inactivity had been dis abled The instrument will stay on and can be switched off only by the On Off key See the function AutoPowerOff on p 5 The Screen fu...

Page 81: ...To end the sub functions Screen or Rawdata press the key 4 SERIALOUT and then the function key F1 STOP printing See the Logging function on p 88 the Screen function on p 90 and the Rawdata function on...

Page 82: ...ata In this case a message indicating that logging has been interrupted due to low battery reasons will appear on display and on the printout of ac quired data Stop code low_batt on display and Log st...

Page 83: ...are flat they must be replaced immediately Take steps to avoid leakage of liquid from the batteries Use good quality leak proof batteries alkaline if possible STORAGE OF THE INSTRUMENT Instrument stor...

Page 84: ...e 19200 baud Parity None N bit 8 Stop bit 1 Protocol Xon Xoff The data transmission velocity may be changed by adjusting the Baudrate parameter on the menu item Serial see p 22 The possible baud rates...

Page 85: ...int the difference A1 C1 SL as above for the difference B1 C1 Print the difference B1 C1 SM as above for the internal temperature Ti Print the internal temperature Ti Note 1 This command works only fr...

Page 86: ...two log ging functions one at fixed time interval equal to one second and one with command The first function is activated with the command rcdGO key F1 and terminated with the command rcdSTOP key F2...

Page 87: ...inputs which in this case are three temperatures 5 conclude the recording and return to normal measurement 6 6 5 Ti A1 b1 c1 F1 F2 F2 F2 F3 Ti Ti Ti A1 A1 A1 A1 b1 b1 b1 b1 c1 c1 c1 c1 2 1 NORMALMEASU...

Page 88: ...nction key in this case the variables A1 B1 and C1 are stored The logging of all the inputs A1 A2 C3 and also the internal temperature is activated with the F3 ALL function key Press the F2 Stop Loggi...

Page 89: ...nstrument with the ON OFF key ends the current logging session Example 2 you want to log the trend of three quantities for example three temperatures with an interval of 100 seconds start and stop com...

Page 90: ...C2 or C3 the differences A1 B1 A1 C1 or B1 C1 when they refer to inputs of the same type the internal temperature of the instrument The date and time of acquisition are shown next to each line of the...

Page 91: ...Serial see p 22 for a detailed description THE RCD FUNCTION The 4 SerialOut F2 RCD function behaves similarly to the Screen function with these dif ferences when the STOP key is pressed it supplies t...

Page 92: ...100 00 C 19 76 C 22 88 C MAX 100 00 C 19 76 C 23 95 C AVG 100 00 C 19 76 C 23 38 C Absolute data printed THE ALL FUNCTION The 4 SerialOut F3 ALL function sends the values measured by the 9 inputs of t...

Page 93: ...C NOMEAS NOMEAS NOMEAS 26 9 C Note the Logging operation may be started at the same time as the Record function key 6 RCD or as the SerialOut function key 4 SERIALOUT and each operation does not influ...

Page 94: ...refer to the user s manual supplied with the software and not to the following instructions HARDWARE CONNECTION 1 The measuring instrument must be switched off 2 Connect the port RS232C of the measur...

Page 95: ...e to the communication that you want to activate and choose an icon in subsequent communications it will be possible to activate directly the icon chosen in place of HYPERTRM EXE automatically recover...

Page 96: ...ck select PROPERTIES from the pull down menu one click and the Properties window will appear on the telephone number card for the Connect property choose directly to COM1 or COM2 depending on the seri...

Page 97: ...9847 and computer to work the item TRANSMISSION VELOCITY on Terminal and Baud rate of the instrument must be set at the same value moreover to transfer data at maximum velocity it is recommended to us...

Page 98: ...he Properties window select SETTINGS to display the Settings card on the Settings card for the Emulation property select TTY set the property Buffer for back scroll at 500 OK to confirm the Properties...

Page 99: ...ect DISPLAY from the Hyper Terminal window one click select CHARACTER from the pull down menu one click and the window for selecting the character will appear set Terminal As Style select Normal Set D...

Page 100: ...trument select CALL from the Hyper Terminal window one click select CONNECT or CALL according to Windows operating systems from the pull down menu In this way it is possible to receive the characters...

Page 101: ...le one click At this point the Hyper Terminal software is able to receive data from the measuring instrument and store them in the set file G Switch on the measuring instrument When the instrument has...

Page 102: ...menu one click At this point data reception from the instrument is ended and the file stored in the computer can be used with any of the software packages used with WINDOWS I To quit running the Hype...

Page 103: ...umidity 0 90 R H without condensation Power Supply Batteries 4 batteries 1 5V type AA Autonomy with three Pt100 probes connected 80 hours with alkaline batteries 1800mAh Absorbed current with instrume...

Page 104: ...0 C Measuring range Pt500 200 C 500 C Accuracy with Pt25 Pt100 sensor 0 03 C up to 350 C 0 3 C up to 850 C Accuracy with Pt500 sensor 0 5 C up to 500 C Resolution 0 01 C from 200 C to 350 C 0 1 C from...

Page 105: ...ring relative humidity Sensor Capacitive Typical working temperature of the probe 40 C 150 C Measuring range 0 100 R H Accuracy 1 RH in the range 20 90 RH 2 RH in the range 10 99 RH Resolution 0 1 RH...

Page 106: ...ar 200 mbar TP705 100MBD 0 25 FSO 0 60 C Tube 5mm 200 mbar 400 mbar TP705 200MBD 0 25 FSO 0 60 C Tube 5mm TP704 200MBGI 0 25 FSO 0 80 C BSP 500 mbar 1000 mbar TP705 500MBD 0 25 FSO 0 60 C Tube 5mm TP7...

Page 107: ...air and gas Connection 5mm tube Hot wire Fan or Pitot tube air velocity Measurement AP471 AP472 and AP473 modules See technical specifications listed in the tables at the end of each chapter dedicated...

Page 108: ...RAM module If you know the Callendar Van Dusen parameters of the probe these can be inserted in the memory thus obtaining a calibrated probe TP471D0 SICRAM electronic module for thermocouple sensors 1...

Page 109: ...he range 350 C 500 C TP473P Penetration probe Pt100 sensor with wire 385 Probe stem 4 mm Length 150 mm 4 wire connecting cable length 2 metres complete with SICRAM module Field of use 100 C 400 C Accu...

Page 110: ...stainless steel protection Grip 80mm Connecting cable length 2 metres Field of use 40 C 180 C 5 98 RH Accuracy in RH 2 5 Accuracy in C 0 35 C HP477DC Combined RH and temperature probe Connecting cabl...

Page 111: ...in strument PP471 SICRAM electronic module for absolute relative and differential pressure measurement All the TP704 and TP705 series Delta Ohm pressure probes can be connected It measures the instan...

Page 112: ...ty from 0 05 to 5m s temperature compensated from 0 to 80 C temperature from 0 to 80 C Probe equipped with SICRAM module and 2m cable AP471 S6 Omnidirectional hot wire telescopic probe to measure velo...

Page 113: ...scopic shaft minimum lenght 210 mm maximum lenght 870 mm AP473 S1 Pitot tube probe equipped with SICRAM module to measure air velocity cal culated flow and temperature through a thermocouple sensor Di...

Page 114: ...onse following standard photopic vision dif fuser for cosine correction Operating Range 0 01 lux 200 103 lux LP 471 RAD Radiometric probe for measuring IRRADIANCE equipped with SICRAM module with spec...

Page 115: ...rrection Measuring range 0 1 10 3 W m2 2000 W m2 LP 471 LUM 2 Photometric probe for measuring LUMINANCE equipped with SICRAM module spectral response following standard photopic vision field of view 2...

Page 116: ...ficients are inserted in the regression formula 2 to determine the temperature with relation to the resistance value of the sensor 100 n t 2 n Ct n Bt A 1 0 R n R t 1 n t 0 n t C 2 n Bt A 1 0 R n R t...

Page 117: ...000 t 100 1 1 R R t n 0 1 n 0 C n t Note that unlike 2 which uses the coefficients A B and C equation 6 is calculated in such a way to point out the factor This means that when the value calculated as...

Page 118: ...ital Communication 22 4 0 Baud Rate 22 4 1 Print Interval 22 5 Calibrate 23 6 Reset 23 7 Utility Instruments 24 7 1 Area Calculations 24 8 Options 26 8 1 Comp Temp Select Selection of Compensating Tem...

Page 119: ...Technical Specifications 60 AP473 S1 AP473 S4 Pitot Tube Probes for the Measurement of air velocity equipped with SICRAM module 61 Measuring Principle 61 AP473 S1 AP473 S4 modules 62 Operation 62 Dim...

Page 120: ...TIONS FOR CONNECTING THE DO9847 TO A PC WITH WINDOWS OPERATING SYSTEM 94 Hardware connection 94 Software connection with WINDOWS 95 98 NT ME 2000 and Xp 94 TECHNICAL DATA OF THE DO9847 MULTIFUNCTION I...

Page 121: ...ai campioni internazionali e nazionali delle unit del SIT garantita da una catena di riferibilit ininterrotta che ha origine dalla taratura dei campioni di laboratorio presso l Istituto Primario Nazio...

Page 122: ...lectronic devices with the following symbol cannot be disposed in the public dumps According to the Directive UE 2002 96 EC the European users of electric and electronic devices are allowed to give ba...

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