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The rules should oblige the seller to give the purchaser an operating instrucion of Bosch DS240, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.
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The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Bosch DS240 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.
Unfortunately, only a few customers devote their time to read an instruction of Bosch DS240. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.
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First and foremost, an user manual of Bosch DS240 should contain:
- informations concerning technical data of Bosch DS240
- name of the manufacturer and a year of construction of the Bosch DS240 item
- rules of operation, control and maintenance of the Bosch DS240 item
- safety signs and mark certificates which confirm compatibility with appropriate standards
Why don't we read the manuals?
Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Bosch DS240 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 Bosch DS240, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Bosch 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 Bosch DS240.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Bosch DS240 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
Installation Instructions DS240 and DS241 Long Range Beam Smoke Detectors 1.0 Description The DS240 and DS241 are long range projected beam type smoke detectors which consist of a separate transmitter and receiver . Internal pointability provides coverage flexibility without the need for brackets. Automatic Signal Synchronization and Range Adjustme[...]
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Page 2
Page 2 P/N: 22066P © 2004 Bosch DS240/DS241 Installation Instructions 4. 0 Installation Considerations The proper location and spacing of detectors is critical in a properly installed and operating fire alarm system. For best results, it is recommended that the detectors be located and spaced in accordance with the National Fire Protection Associa[...]
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Page 3
DS240/DS241 Installation Instructions © 2004 Bosch P/N: 22066P Page 3 4. 4 Provide a stable mounting surface Beam smoke detectors depend on the measurement of the projected beam to sense smoke. Therefore, shifts in the alignment of the beam due to movement of the transmitter/receiver can cause trouble or alarm conditions. • Always select a stabl[...]
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Page 4
Page 4 P/N: 22066P © 2004 Bosch DS240/DS241 Installation Instructions 6.0 WIRING Only apply power after all connections have been made and inspected. • Wire the transmitter and receiver terminals as follows (see Figure 6 ). NOTE: Do not install on verified fire circuits. Figure 6 - Wiring a Single Unit NOTE: Do not coil excess wiring inside the [...]
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DS240/DS241 Installation Instructions © 2004 Bosch P/N: 22066P Page 5 - If the LED is off, check for the presence of power and proper polarity on T erminals 1 (–) & 2 (+). - A steady green LED indicates a faulty transmitter , and the unit should be returned to the factory . • Check the three receiver LEDs (see Figure 9 ). Red/Alarm Troub l[...]
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Page 6 P/N: 22066P © 2004 Bosch DS240/DS241 Installation Instructions 7.3 Fine T une Alignment • Connect the supplied TC2000 T est Cable to Pins 1, 2 and 3 of P6, the group of pins located just to the right of the receiver’s terminal strip (see Figure 14 ). Figure 14 - TC2000 Connection - T emporarily disconnect the Remote Indicator Plate conn[...]
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DS240/DS241 Installation Instructions © 2004 Bosch P/N: 22066P Page 7 T o check the reference voltage, remove the receiver's access door and measure the reference voltage, using the supplied test cable, or measure the voltage at the DIS240 Remote Indicator Plate (if used). If the voltage is less than 3.8 VDC, remove the cover and perform a fi[...]
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Page 8
Page 8 P/N: 22066P © 2004 Bosch DS240/DS241 Installation Instructions The Sensitivity T est Kit (supplied) may be used to check the sensitivity of the detectors during installation only . For field testing, the TK240 must be used. Each filter decreases the detector’s signal by a defined amount. When each filter is placed in front of the receiver[...]
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DS240/DS241 Installation Instructions © 2004 Bosch P/N: 22066P Page 9 9.0 T roubleshooting[...]
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Page 10 P/N: 22066P © 2004 Bosch DS240/DS241 Installation Instructions 10.0 Installing Multiple Units[...]
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DS240/DS241 Installation Instructions © 2004 Bosch P/N: 22066P Page 11 11.0 Quick Start Installation Flow Chart[...]
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© 2004 Bosch 22066P 7/04 130 P er inton P ar kwa y , F air por t, NY 14450-9199 USA Installation Instructions D S240/DS241 Long Range Beam Smoke Detectors Customer Ser vice: (800) 289-0096; T echnical Suppor t (888) 886-6189 Page 12 of 12[...]