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The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Nilfisk-ALTO CLE4.0 one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.
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First and foremost, an user manual of Nilfisk-ALTO CLE4.0 should contain:
- informations concerning technical data of Nilfisk-ALTO CLE4.0
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- rules of operation, control and maintenance of the Nilfisk-ALTO CLE4.0 item
- safety signs and mark certificates which confirm compatibility with appropriate standards
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Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Nilfisk-ALTO CLE4.0 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Nilfisk-ALTO CLE4.0, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Nilfisk-ALTO service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Nilfisk-ALTO CLE4.0.
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It is mostly in the manuals where we will find the details concerning construction and possibility of the Nilfisk-ALTO CLE4.0 item, and its use of respective accessory, as well as information concerning all the functions and facilities.
After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.
Table of contents for the manual
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Page 1
QUAD COMPRESSOR/LIMITER User's Manual LTO R www .altoproaudio.com V ersion 2.0 Dec. 2002 English CLE4.0[...]
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Page 2
1 SAFETY RELA TED SYMBOLS CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN This symbol, wherever used, alerts you to the pre- sence of un-insulated and dangerous voltages with- in the product enclosure. These are voltages that may be sufficient to constitute the risk of electric shock or death. Protective Ground T erminal AC mains (Alternating Current) H[...]
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Page 3
2 PREF ACE Dear Customer: For our L TO AUDIO TEAM, music and sound are more then a job...are first of all passion and let us say ... our obsession! We have been designing professional audio products for a long time in cooperation with some of the major brands in the world in the audio field. The L TO line presents unparalleled analogue and digital [...]
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Page 4
T ABLE OF CONTENTS 1. INTRODUCTION......................................................................................................................................4 2.1 Some technical stuff 2. THE CONCEPT BEHIND........................................................................................................................4 2.2 V oltage[...]
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Page 5
1. INTRODUCTION Y ou are now the Owner of an CLE 4.0 Quad Compressor/Limiter . The CLE 4.0 is a very powerful dynamic LT O processor . We have included in it several innovative circuit designs that make the CLE 4.0 a very versatile processor: smart and fast recognition of the program and very low distortion V oltage Control Amplifier (VCA) Feature [...]
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5 Chart. 1 The dynamic range capabilities of various devices Chart. 2 The interactive relationship between the operating level and the headroom So the operating level must be as high as possible but not high enough to generate distortion. T ricky uh? There is a very easy way to obtain this. With the volume knob in hand you increase the volume durin[...]
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6 3. CONTROL ELEMENTS Y our CLE 4.0 presents with four channels. Each channel is equipped with the same control elements: 3 push-button switches, 4 rotary controls and 17 LEDs. Y ou can operate in stereo mode via pressing the Couple switch. The details please refer to following content. 1. Threshold Control for Compressor Section With this control [...]
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7 9. Threshold Control for Limiter The threshold Level for the Limiter will be adjusted by this control 10. Limiter LED When the Limiter is active, this LED will flash up. 12. V oltage Selector and Fuse holder Please make sure about the voltage available in your Country before connecting the unit to the AC socket. Please consult with a qualified En[...]
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8 4.1.2 Ratio ontrol C This control sets the change of input level to output level but only for the signals that exceed the threshold. The scale of the ratio control on the front panel (calibrated in dB) indicates how much input level is required to increase the output level by 1dB. If you have a ratio equal to 1:1 you will get the same level of in[...]
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Page 10
4.2 The Peak Limiter Section How fast is the compressor to react to a signal which is above the threshold point? This is determined by the attack time. A longer attack time is advisable to process low frequencies while shorter attack time is preferable for high frequencies. IN this way you will avoid undesired dynamic distortion. But what about if [...]
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Page 11
10 b. In Line Connection Please see following drawing for details. 5.3 Rack ounting M The most secure mounting is on a universal rack shelf available from various rack manufactures or your music dealer . The CLE 4.0 Quad Compressor/Limiter fits into one standard 19" rack unit of space. Please allow at least an additional 4" depth for the [...]
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11 AUDIO INPUT Active balanced XLR and 1/4"JACK Balanced: 50K Ohm Unbalanced: 25K Ohm alanced and nbalanced: B U +21 dBu +21 dBu AUDIO OUTPUT XLR and 1/4" JACK Balanced: 60Ohm Unbalanced: 30Ohm 20Hz to 20KHz at +0,-0.5dB 0.01% typ.1KHz ,@+4dBu 0.04% typ,1KHz ,@+20dBu 0.01% typ >-90dBu <-100dB Interactive Compressor V ariable: from -[...]
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11 7. W ARRANTY 1. W ARRANTY REGISTRA TION CARD T o obtain Warranty Service, the buyer should first fill out and return the enclosed W arranty Registration Card within 10 days of the Purchase Date. All the information presented in this W arranty Registration Card gives the manufacturer a better understanding of the sales status, so as to purport a [...]
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SEKAKU ELECTRON IND. CO., L TD NO.1, LANE 17, SEC. 2, HAN SHI WEST ROAD, T AICHUNG, 401 T AIWAN http://www .altoproaudio.com T el:886-4-22313737 email: alto@altoproaudio.com Fax:886-4-22346757 All rights reserved to AL TO. All features and content might be changed without prior notice. Any photocopy , translation, or reproduction of part of this ma[...]