User manual ELECTRO-VOICE DEM 317

[. . . ] If the mains power supply is interrupted, the second source of energy must guarantee constant non-stop operation automatically and without interruption. If the energy source belonging to the alarm device consists of a battery, the user must ensure that the batteries used are suitable for stationary and floating operation. The power supply for alarm devices must not be used to supply other apparatus or parts. However, electrical equipment which serves to pass on messages may also be powered by the said source. [. . . ] number of power amplifiers* DEM 287 DEM 288 17 25 9 13 DEM 289 5 7 Table II Maximum currents and number of power amplifiers * The number of power amplifiers which can be directly connected to the battery drawers can be lower than the values specified in Table II (see number of outputs, section 8, specifications). The values specified in the Table only refer to the connection of one amplifier type to one battery type. As long as the maximum current drawn is observed, however, various types of amplifier can be supplied by one type of battery. Circuit diagram of the battery connection to the charging device. 2. 4. BATTERY CONTROL connection The battery drawers are equipped with a exhaustive discharge protection which is controlled by the monitoring module in the charging device DEM 313. The monitoring circuit checks whether the battery's discharge voltage has been reached when the batteries are discharged. If the battery voltage is less than 19. 5 V, measured at the battery poles, the consumers are disconnected from the battery and the battery is thus reliably protected from exhaustive discharge. If the 15-pole plug connector BATTERY CONTROL has not been correctly connected with the charging device, or if the battery voltage is lower than the discharge voltage, the battery outputs are not live The connection of the temperature sensor for the temperature tracking of the battery voltage takes place via contact 5 (+temp) and contact 6 (-temp) of the 15-pole plug connector BATTERY CONTROL to the charging device DEM 313. If the connection is faulty, the temperature tracking does not work and the battery will not charged. (Also see the operating instructions for the charging device). In the case of the battery module DEM 317, the temperature sensor is located in the module DEM 317A. 2. 5 Connection for battery charging Connection of the charging device to the battery takes place via the flat pin connector CHARGE CURRENT. The plus pole of the charging device is to be connected to the plus pole of the battery, and the minus pole of the charging device is to be connected to the minus pole of the battery. (Please also see the operating instructions of the charging devices). 3. Notes for the user 3. 1 Use of the battery is to be avoided in the following locations. -- areas exposed to direct sunlight -- areas with excessive radioactivity, infrared radiation or ultra-violet radiation -- areas with organic solvent vapours, dust, salt or corrosive gases -- areas with abnormal vibration. 3. 2 Regulations for battery use -- Do not throw batteries into the fire. Do not place batteries in the proximity of fires. -- Do not tamper with or open batteries. -- If the battery has been damaged and diluted sulphuric acid comes into contact with skin or clothing, rinse immediately with plenty of water. If diluted sulphuric acid gets into the eyes, consult a doctor immediately. [. . . ] Garantieleistungen werden nur dann anerkannt, wenn gültige, d. h. vollständig ausgefüllte Garantieunterlagen vorliegen. Von der Garantie ausgenommen sind alle Schäden, die durch falsche oder unsachgemäße Bedienung verursacht werden. Bei Fremdeingriffen oder eigenmächtigen Änderungen erlischt jeder Garantieanspruch. WARRANTY The factory grants warranty covering all verifiable material and manufacturing faults for a period of 36 months after purchase. [. . . ]