LT2000 User Guide

ATEN LT2000 – Line Tester Page 1 / 18

L T 2 0 0 0 Selective Level Meter

& Level Generator

Operating Manual

January 2005 Index Technical characteristics................................................................page 2 Accessories and options ................................................................page 4 Command and connections Lay-Out ............................................page 5 Command and connections description .......................................page 6 Batteries charging informations ....................................................page 9 Automatic measurements description ..........................................page 10 Example for Field Application - Noise / Level measurement on single frequency ............................page 11 - Noise / Level RMS measurement on wide band ...........................page 11 - Near Cross-talk measurement on single frequency .......................page 12 - Near Cross-talk measurement on wide band..................................page 12 - Return Loss measurement on single frequency..............................page 13 - Return Loss measurement on wide band........................................page 13 - Attenuation of the line on single frequency .....................................page 14 - Longitudinal Balance measurement on single frequency................page 14 - Longitudinal Balance measurement on wide band .........................page 15 LT2000 Field Applications table .....................................................page 16 Table of parameters and limits of measurements........................page 17


TECHNICAL CHARACTERISTICS GENERAL Case.................................. : ABS. Connections ...................... : • input "RX" : triple banana jack (a-b-Gnd). • input/output "TRX” : triple banana jack (a-b-Gnd). • polarized connector for supply & battery charger. • RJ45-4 connector for headset interface. Display .............................. : 4 lines x 16 characters alphanumeric LCD. Keypad.............................. : microswitches under polyester membrane film. Power supply .................... • NiMH internal rechargeable batteries (green type), approx. 4 hours of operating time; • external: 11 to 32 Vdc / 1,5 ÷ 0,6 A. Ambient temperature ........ : • operating: 0 ÷ 50° C; • storage: -10 ÷ 60° C. Freq. accuracy / stability ... : • factory accuracy: ± 2 ppm @ 23° C; • temperature deviation: ± 10 ppm 0 to 50° C; • long term stability: ± 5 ppm / year. Dimensions ....................... : 100 x 40 x 210 mm. Weight............................... : < 1 Kg. SIGNAL GENERATOR Output Impedance ............ : < 10, 150 Ω (120 or 135Ω on request), 600 Ω balanced (≈ 5µF series); Output frequency range .... : from 200 Hz up to 2000 kHz. Resolution ......................... : • 1 Hz from 200 Hz to 10 kHz; • 100 Hz from 10 kHz to 2000 kHz. Output Level...................... : • 0.0 dBm ± 0.2 dB @ 10 kHz. Output Level accuracy vs. frequency (referred to 10 kHz):

-2 ÷ -1 dB -1 ÷ -0.5 dB -0.5 ÷ -0.2 dB ± 0.1 dB ± 0.3 dB 600Ω 200 Hz 800 Hz 800 kHz 2000 kHz 120÷150Ω 200 Hz 300 Hz 600 Hz 2 kHz 800 kHz 2000 kHz Harmonic distortion........... : ≤ 0.5%.


SELECTIVE LEVEL METER Input impedance ............... : 150 Ω (120 or 135Ω on request) 600 Ω, ≥ 200 kΩ balanced (≈ 5µF series); Tunable frequencies ......... : tracking with TX Freq. (200 Hz ÷ 2000 kHz). Selectivity (fo ≥ 800 Hz) .... : ≤ -0.5 dB @ ±30 Hz fo; ≥ -50 dB @ ± 500 Hz fo. Level measurements ........ : absolute (dBm) and relative (dBr). Input range........................ : ≤ -100 ÷ +5 dBm; Resolution: 0.1 dB. Noise floor (TX off)............ : • ≤ -100 dBm @ 600 Ω; • ≤ -95 dBm @ 120÷150 Ω. Intrinsic cross-talk ............. : ≤ -90 dB @ 1000 kHz. Level meas. accuracy ....... : ± 0.2 dB @ 0.0 dBm - 10 kHz. Level meas. accuracy vs. input level (Referred to 10 kHz): ⎪← - - - - TX OFF - - - - →⎪

± 0.3 dB ± 0.2 dB ± 0.5 dB ± 1 dB ± 2 dB 600Ω +5 dBm 0 dBm -70 dBm -85 dBm -95 dBm -100 dBm 120÷150Ω +5 dBm 0 dBm -70 dBm -80 dBm -90 dBm -95 dBm Level meas. accuracy vs. frequency (Referred to 10 kHz / 0 dBm):

-2 ÷ -1 dB -1 ÷ -0.5 dB -0.5 ÷ -0.2 dB ± 0.1 dB ± 0.3 dB 600 Ω 200 Hz 800 Hz 800 kHz 2000 kHz 120÷150Ω 200 Hz 300 Hz 600 Hz 2 kHz 800 kHz 2000 kHz Hybrid circuit - return loss . : ≥ 40 dB with nominal load. Image / spurious rejection. : ≥ -60 dB (fo ≥ 800 Hz). AUTOMATIC MEASUREMENTS IN SCAN MODE • Noise (or Level): - frequency & level readout of min. and max. noise level; - frequency band and RMS noise level readout; • Return-loss: frequency & level readout of min. and max. echo level; • Near Cross-talk: frequency & level readout of min. and max. cross level; Programmable bands • “base band” from 200 Hz min. to 10 kHz max. (1 step/sec. speed) (100; 200; 400; 1000 Hz selectable step) • “high band” from 10 kHz min. to 2000 kHz max. (0.1; 0.2; 0.4; 1; 2; 4; 10 and 20 kHz select. step) SWEEP GENERATOR MODE Sweep generator • “base band” from 200 Hz min. to 10 kHz max. (10 step/sec. speed) (100; 200; 400; 1000 Hz selectable step); • “high band” from 10 kHz min. to 2000 kHz max. (0.1; 0.2; 0.4; 1; 2; 4; 10 and 20 kHz select. step).


SUPPLIED ACCESSORIES • Ac power supply and batteries recharger • Instruction manual OPTIONAL ACCESSORIES

LT01 -Softpack carrying case LT02 -Headset LT04 -Banana-Crocodile cable

LT05 -Fixed Balanced Attenuator: LT06 -Balance Meas.Adapter LT07 –150 (120 or 135) or 600 Ω 3 , 6 , 10 , 20 , 30 or 40 dB 150 Ω (120 or 135 Ω on Resistive Termination 150 Ω (120 or 135 Ω on request) or 600 Ω. request) and 600 Ω.

All information contained in this document are subject to change without notice


KEYS and CONNECTIONS LAY OUT

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KEYS and CONNECTIONS description (Refer to LAY-OUT represented on the previous page) 1) POWER – Key to switch ON and OFF the instrument: just a touch to SWITCH ON and press for 2 seconds to SWITCH OFF. 2) 2/4W - Key to select the operating mode: - 2W (2 wires) to measure the Return Loss (echo-signal attenuation) with

a single instrument using the internal active hybrid circuit or the line attenuation or “tele” Cross-Talk with two instruments, each one of them, at the opposite side of the cable.

- 4W (4 wires ) to measure the “near” Cross-Talk with a single instrument

(using the TX output and RX input) at the same side of the cable. (see “LT2000 - Field Application table” at page 16). 3) TX – Key to switch OFF and ON the generator press.

Used to reduce the power consumption of the batteries when the LT2000 is used only as receiver in 2 or 4 wire mode (pressing a second time the key the generator starts working again).

When the generator is OFF, the display shows OFF instead of 0 dBm. 4) REL – Pressing this key, the last measure is frozen and subsequently

subtracted from the next measures and the dBm indication changes to dBr. Pressing the key again, the absolute value in dBm is restored.

5) RUN – Key for starting, reading values and getting out from the automatic

measurement pre-selected by the FUN key (11). At the first pressure of the key the automatic measurement starts. At the end of the automatic measurement the display shows ……Done and the frequency and the level of the stronger measured signal is immediately shown; further pressures on the key call back on the display: - frequency and level of the poorer measured signal; - for Noise measurement only, pressing again, the evaluated RMS level

of Noise on pre-selected band-width is shown too;


6) - Arrows to increase and decrease the digit value indicated by the cursor; - Arrows to move the digit cursor left and right. 7) FREQ - Key allowing to program the generator and receiver frequency.

At the first pressing of the key, the display shows Freq Set and the frequency free setting is enabled by (6) keys. At the second pressing of the key, the display shows QuickSet and the quick setting of standard pre-set frequencies is enabled by (6) keys: 800, 850, 1.020 Hz e 20, 40, 80, 150, 300, 750, 1.024, 1.500, 2.000 kHz.

8) TALK - Key to enable and disable the intercom function, activating the

microphone, to allow communications between operators at opposite sites of the line. This function disables the generator automatically.

When this function is active on the display appears TALK. 9) HOLD - Key to switch OFF and ON the receiver. In this mode, the display keep showing the last measurements values. This function too, is useful to limit batteries consumption. When in pause the display shows Hold. 10) Zo - Key setting TX output and RX input impedance:

- in “2 Wires” mode, two selectable impedances: - 150Ω TX e RX; - 600Ω TX e RX.

- in “4 Wires” mode, six selectable impedances or combinations: - 600Ω TX e RX; - 600Ω TX / RxHiZ (>200 kΩ) RX (measure ref. to 600 Ω); - TxLo (10 Ω) TX / RxHiZ (>200 kΩ) RX (measure ref. to 600 Ω); - 150Ω TX e RX; - 150Ω TX / RxHiZ (>200 kΩ) RX (measure ref. to 150 Ω); - TxLo (10 Ω) TX / RxHiZ (>200 kΩ) RX (measure ref. to 150 Ω).


11) FUN – Key to select automatic measurement modes, as following:

In 2 Wire mode and if generator is “on” (Tx0dBm), the first press of the key selects the Return-Loss measurement in scan mode. If the generator is disabled (Tx OFF) this key selects the Noise measurement in scan mode. A second pressing of the key selects the Sweep generator function.

A third pressing of the key selects the normal operating mode.

In 4 Wire mode and if generator is “on” (Tx0dBm), the first pressing of the key selects the Cross-talk measurement in scan mode. If the generator is disabled (Tx OFF) this key selects the Noise measurement in scan mode. A second pressing of the key selects the Sweep generator function.

A third pressing of the key selects the normal operating mode.

In scan and sweep modes , it is possible to set the “Start” frequency by and (6) keys.

Pressing again the FREQ key, it is possible to set the “Stop” frequency; pressing again the FREQ key, it is possible to set the needed Step of frequency scanner.

12) TRX - Generator output connector and Receiver input connector using the

active hybrid circuit, to be used for the 2W (2wires-TX/RX) or 4W (4wire-TX) measurements.

13) RX - Receiver input connector, to be used only with the 4W (4 wires –RX)

measurements. 14) DC INPUT - Polarised connector for DC input and battery charger. 15) HEADSET - Communication connector for the intercom facilities.


BATTERIES CHARGING INFORMATION Charging of the batteries The internal batteries have to be charged using the supplied charger, or an equivalent one, granting 13.5 VDC and 1A. Connecting the battery charger to DC connector (14), the display will show: - CHARGING while charging (≤ 3 hours). - CHARGED when the charging is done. The instrument may be used while charging. Very important: High room temperature may deceive the temperature sensor of the batteries, therefore charging the batteries in a cool and airy environment is advised. SERVICE NOTE If you require technical advice or are having a problem as to the use, maintenance and/or repair, contact: A T E N srl Service Department Via dei Lavoratori, 6 04010 LATINA B.go S. Michele - ITALY Tel. + 39 0773 - 240.696 Fax + 39 0773 - 240.676 E-MAIL: [email protected] WEB: http://www.aten.it


AUTOMATIC MEASUREMENTS DESCRIPTION Below, functions for automatic measurements are described. AUTOMATIC MEASUREMENTS IN SCAN MODE With these functions, the selective meter and frequency generator tune changes automatically within a pre-selected band. The purpose is to find automatically the frequency of the signal with a minimum or maximum level, and, as far as Noise measurement is concerned, the RMS weighed value on pre-selected band *. The band limits are fixed by the “Start” and the “Stop” frequency setting; also the “Step-frequency” is selectable. For these functions the instrument automatically combines an IN/OUT impedance of 600 Ω for “Base Band” (200 ÷ 10,000 Hz) measurements, and an IN/OUT impedance of 150 Ω for “High Band” (10 ÷ 2,000 kHz) measurements. In “Scan” mode it is possible to carry out the following measurements: - CROSSTALK (near) in 4 Wires mode; - RETURN LOSS in 2 Wires mode; - NOISE or LEVEL in 2 or 4 Wires mode; - LONGITUDINAL BALANCE in 4 Wires mode. SWEEP GENERATOR By this function the instrument generator sweeps automatically from "Start" frequency to "Stop" frequency, by frequency "Steps". Each value is programmable. Note*: Independently from selected Steps, the measurement is carried out on a band-pass of 100 Hz. The displayed value is normalised to a frequency band equivalent the selected step.


EXAMPLE FOR FIELD APPLICATIONS Noise / Level measurement on single frequency (f.e. 40 kHz for ISDN lines) - connect the line to be checked to the instrument RX balanced connector; - turn the instrument on and set it in 4 Wire mode by pressing 2/4 W key; - set up TX and RX impedance at 150 Ω by pressing Zo key repeatedly; - set up frequency at 40.0 kHz by pressing FREQ and keys; - read on RX Lev line the noise signal level present on the line; Noise / Level (min. - max. & RMS level) measurement on wide band (f.e. 20 – 1100 kHz for ADSL lines) - connect the line to be checked to the instrument RX balanced connector; - turn the instrument on and set it in 4 Wire mode by pressing 2/4 W key; - set up TX and RX impedance at 150 Ω by pressing Zo key repeatedly; - turn the generator off (TX OFF) by pressing TX key; - select Noise Set function by pressing FUN key; - "Start" (20kHz), “Stop” (1100kHz) and “Step” frequencies are already set up,

if needed, it is possible to modify such values by using FREQ key and keys;

- press RUN key to start scanning and wait for its conclusion (*); - when the scanning is finished “NoiseDone”; read on MaxLev line the noise

maximum level joined to its frequency; - press RUN key again, to read on MinLev line the noise minimum level

joined to its frequency (**); - press again RUN key to read on RmsLev line the equivalent RMS noise

level weighed on pre-selected band; - press again RUN key to stop and get out of this measuring mode. note *) Should RUN key be pressed before the scanning is finished, the measurement will stop on that point (frequency) and results will be good up to that point. note**) At this point, if the scanning was carried out to find and measure the maximum or minimum signal level within the programmed band limits then, the next step (RMS level reading as an equivalent of noise) need not to be taken into consideration.


Near Cross-talk measurement on single frequency (f.e. 40 kHz for ISDN lines) - connect the disturbing line to the instrument TRX balanced connector; - connect the line to be checked to the instrument RX balanced connector; - put a resistive load of 150 Ohm (it is also possible to use 40 dB / 150 Ohm

attenuators) at the opposite side of both lines. - turn the instrument on and set it in 4 Wire mode by pressing 2/4 W key; - set up TX and RX impedance at 150 Ω by pressing Zo key repeatedly; - set up frequency at 40.0 kHz by pressing FREQ and keys; - read on RX Lev line the attenuation given by the isolation between the two

lines, (read without minus (-) sign and in dB as the disturbing level signal is 0 dBm).

Near Cross-talk measurement (min. and max. level) on wide band (f.e. 20 - 1100 kHz for ADSL lines) - connect the disturbing line to the instrument TRX balanced connector; - connect the line to be checked to the instrument RX balanced connector; - put a resistive load of 150 Ohm (it is also possible to use 40 dB / 150 Ohm

attenuators) at the opposite side of both lines. - turn the instrument on and set it in 4 Wire mode by pressing 2/4 W key; - set up TX and RX impedance at 150 Ω by pressing Zo key repeatedly; - select Cross Set function by pressing FUN key; - “Start” (20kHz), “Stop” (1100kHz) and “Step” frequencies are already set up,


- press RUN key to start scanning and wait for its conclusion; - when the scanning is finished “Cross Done”, read on MaxLev line the worst

attenuation given by the isolation between the two lines, (read without minus (-) sign and in dB as the disturbing level signal is 0 dBm);

- press RUN key again, to read on MinLev line the best attenuation given by the isolation between the two lines, (read without minus sign and in dB as the disturbing level signal is 0 dBm);

- press again RUN key to stop and get out of this measuring mode.


Return Loss measurement on single frequency (f.e. 40 kHz for ISDN lines) - connect the line to be checked to the instrument TRX balanced connector; - put a resistive load of 150 Ohm (it is also possible to use 40 dB / 150 Ohm

attenuators) at the opposite side of the line; - turn the instrument on and set it in 2 Wire mode by pressing 2/4 W key - set up TX and RX impedance at 150 Ω by pressing Zo key repeatedly; - set up frequency at 40.0 kHz by pressing FREQ and keys; - read on RX Lev the return loss attenuation given by the line impedance

matching (read without minus (-) sign and in dB, as the TX signal level is 0 dBm).

Return Loss measurement (min. and max. level) on wide band (f.e. 20 - 1100 kHz for ADSL lines) - connect the line to be checked to the instrument TRX balanced connector; - put a resistive load of 150 Ohm (it is also possible to use 40 dB / 150 Ohm

attenuators) at the opposite side of the line; - turn the instrument on and set it in 2 Wire mode by pressing 2/4 W key; - set up TX and RX impedance at 150 Ω by pressing Zo key repeatedly; - select Rloss Set function by pressing FUN key; - “Start” (20kHz), “Stop” (1100kHz) and “Step” frequencies are already set up,


- press RUN key to start scanning and wait for its conclusion; - when the scanning is finished "RlossDone", read on MaxLev line the worst

return loss attenuation given by the line impedance matching (read without minus (-) sign and in dB, as the TX signal level is 0 dBm).

- press RUN key again, to read on MinLev line the best return loss attenuation given by the line impedance matching (read without minus sign and in dB, as

- TX signal level is 0 dBm). - press again RUN key to stop and get out of this measuring mode.


Attenuation of the line on single frequency - two instruments (f.e. 40 kHz for ISDN lines) - connect the line to be checked to both instruments TRX balanced

connectors; - if the technicians on opposite sides of the line wish talking to each other,

connect the headsets to both instruments (*); - turn the instruments on and set them in 2Wire mode by pressing 2/4 W key; - set up TX and RX impedance at 150 Ω by pressing Zo key repeatedly; - set frequency at 40.0 kHz by pressing FREQ and keys; - switch off the generator (TX OFF) of the instrument intended only for

measurements by pressing TX key; - on RXLev line of last mentioned instrument, read the line attenuation (read

without minus (-) sign and in dB, as the signal level on the opposite side is 0dBm).

Note (*) On switching the intercommunicating system on by pressing TALK key, the generator gets switched off; to get on measuring, it is necessary to switch the intercom off pressing TALK key once again. Longitudinal Balance measurement on single frequency This measurement allows to evaluate the balancing of the line under test in order to consider its degree of immunity to interfering signals as well its possible low insulation towards ground or possible copper pairs mismatching. A greater attenuation of the differential signal measured at both ends of the line, points out a better symmetry of the same towards the ground or any other reference point. Due to the kind of measurement, it is necessary its being carried out using a ground reference or a free copper pair on the same cable where no ground is available.


Procedure (f.e. measurement at 40 kHz for ISDN lines) - connect to the instrument the four conductors of its special adapter

"BALANCED MEASURE ADAPTER" (option LT-06) following the instructions pointed out on its label;

- connect the line to be checked and the "ground" conductor to the adapter DUT connector following the instructions pointed out on the label;

- set up the upper selector of the adapter on the correct reference impedance (150 Ω);

- set up the lower selector of the adapter on REL position; - put a resistive load of 150 Ohm (it is also possible to use 40 dB / 150 Ohm

attenuators) at the opposite side of the line; - turn the instrument on and set it in 4 Wire mode by pressing 2/4 W key; - set up TxLo/RxHiZ impedance (ref. 150 Ω) by pressing Zo key repeatedly; - set up frequency at 40.0 kHz by pressing FREQ and keys; - select, on the instrument, the "relative" measurement by pressing REL key; - set up the lower selector of the adapter on MEAS position; - read on RX Lev line, in dBr and without minus (-) sign, the symmetry

attenuation given by the balance of the line; Longitudinal Balance measurement (min. & max. lev) on wide band (f.e. 20 - 1100 kHz for ADSL lines) Connect the special adapter to the line and "ground" and to the instrument as described above, then get on as follows: - turn the instrument on and set it in 4 Wire mode by pressing 2/4 W key; - set up TxLo/RxHiZ impedance (6th combination - ref. 150 Ω) by pressing Zo

key repeatedly; - set up frequency at 300.0 kHz by pressing FREQ and keys; - select, on the instrument, the "relative" measurement by pressing REL key; - Select Cross Set function by pressing FUN key; - “Start” (20kHz), “Stop” (1100kHz) and “Step” frequencies are already set up,


- press RUN key to start scanning and wait for its conclusion; - when the scanning is finished "CrossDone", read (in dBr and without minus

(-) sign) on MaxLev line the worst symmetry attenuation given by the line balance;

- press RUN key again, to read (in dBr and without minus (-) sign) on on MinLev line the best symmetry attenuation given by the line balance;

- press again RUN key to stop and get out of this measuring mode.


LT2000 - Field applications table

TRX

TRX

Return LossReturn Lossmeasurementmeasurement

TX

RX

AttenuationAttenuationmeasurementmeasurement TRX

Near Cross-talkNear Cross-talkmeasurementmeasurement

TX

line under test?RX

line under test

NoiseNoise or or LevelLevelmeasurementmeasurement

RX TX

Zo = nominal termination 150 (120 or 135) or 600 Ohm

Zo = nominal termnation 150 (120 or 135) or 600 Ohm

Longitudinal BalanceLongitudinal Balancemeasurementmeasurement

TX

RX

line under testZo

BalanceMeasureAdapter

Zo = nominal termnation 150 (120 or 135) or 600 Ohm

TRXTRXTRX

TRX

interfering line

RXline under testZo

Zo

line under testZo


TABLE OF PARAMETERS AND LIMITS OF MEASUREMENTS TABLE OF MEASURING PARAMETER AND LIMITS OF ACCETTABILITY OF COPPER PAIRS FOR MOST COMMON COMMUNICATION (see note).

Technology / Frequency Zo Attenuation Return Loss Cross Talkattenuation

Simmetry attenuation

Base Band / 850 o 1,000 Hz 600 Ohm < 9,6 dB > 15 dB > 65 dB > 55 dB ISDN – 2B1Q / 40 kHz 150 Ohm < 32 dB > 10 dB > 65 dB > 40 dB ISDN – 4B3T / 80 kHz 150 Ohm < 34 dB > 14 dB > 65 dB > 40 dB HDSL – 2B1Q / 150 kHz * 150 Ohm < 27 dB > 15 dB > 65 dB > 40 dB E1 - 2 Mbps / 1,024 kHz 150 Ohm < 25 dB > 15 dB > 60 dB > 40 dB ADSL / 20 ÷ 1,100 kHz 150 Ohm see note 1 > 10 ÷ 15 dB >65÷60 dB > 40 dB Note(*): 150 kHz 2 pairs systems; 300 kHz 1 pair systems. Note 1): refer to following table:

Transport Class Atten. @ 40 kHz Atten. @ 150 kHz Atten. @ 300 kHz Att. @ 1,100 kHz 2M3 (2,048 kbit/s) < 27 dB < 33 dB < 36 dB < 42 dB 2M1 (6,144 kbit/s) < 17 dB < 23 dB < 26 dB < 32 dB

TABLE OF BAND PARAMETERS AND “RMS” NOISE LIMITS OF ACCETTABILITY

Technology / frequency Zo Max. noise level Base band (from 300 to 3,400 Hz) 600 Ohm -60 dBm ISDN (from 10 to 100 kHz) 150 Ohm -45 dBm HDSL 2 pairs (from 10 to 300 kHz) 150 Ohm -40 dBm HDSL 1 pair (from 10 to 500 kHz) 150 Ohm -40 dBm E1 – 2 Mbps (from 10 to 1,500 kHz) 150 Ohm -45 dBm ADSL (from 20 to 1,100 kHz) 150 Ohm -45 dBm Note: This table relates most commons parameters and limits of acceptability coming from international publications.


Direttiva Comunitaria 2002/96/EC per l’immissione nel mercato e smaltimento di apparecchiature elettriche ed elettroniche “RAEE” contenenti materiali dannosi “RoHS” all’ambiente e alla salute umana. Questa apparecchiatura elettronica può essere liberamente immessa sul mercato anche dopo il 1° luglio 2006, in quanto rientrante nella categoria 9 “strumenti di monitoraggio e controllo”, così come previsto dal D.L. 25 luglio 2005 N. 151. Tuttavia lo smaltimento della stessa apparecchiatura, non può avvenire come normale “rifiuto urbano” ma riconsegnato al produttore o alla sua catena di distribuzione ufficiale che provvederà ad effettuare per essa una raccolta separata. Ad integrazione di quanto suddetto si precisa che: - anche se l’apparecchiatura contiene solo una piccolissima parte di uno o più elementi pericolosi elencati nella direttiva RoHS, l’uso improprio potrebbe essere dannoso alla salute umana e all’ambiente; - il significato del simbolo sottoriportato ed apposto sulla apparecchiatura ricorda che la stessa non può essere smaltita come normale “rifiuto urbano”; - sono previste sanzioni in caso di smaltimento abusivo dell’apparecchiatura.

Community directive 2002/96/EC for introduction in the market and to dispose of “WEEE” (waste electrical and electronic equipments) containing “RoSH” materials damaging to the environment and detrimental to human health. This electronic equipment may be freely introduced on the market even after the1st. of July 2006 being considered "Monitoring and control instruments" (Category 9) as defined in Annex 1A of Directive 2002/96/EC. Nevertheless, the disposition of this equipment cannot be disposed as waste but it has to be returned to producer or to its official distributing network which will see to carry out a separate gathering. In order to integrate what mentioned above is stated that: - even if the equipment contains just a very little quantity of one, or more, dangerous elements listed on RoHS directives, improper use could be detrimental to human health and damaging to the environment ; - the meaning of the symbol shown above and affixed on the equipment is to remind that the same cannot be disposed as “waste”; - penalties are to be expected in case of an abusive disposing of the equipment.

Documents

LT2000 User Guide