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ELA-MODULE-SYSTEM OWNER’S MANUAL
DEM 316 Batterie-MODULE 24 V / 38 Ah
DEM 317 Batterie-MODULE 24 V / 65 Ah
Features of the battery modules
— 19 “ drawer-type chassis with 3 HU, 4 HU and 2x4 HU
— Rated voltage 24 V
— Energy storage
completely maintenance-free, universal-location lead batteries with grid plates and fixed electrolyte,
suitable for cycle operation, continuous battery power supply and trickle charge.
— Exhaustive discharge protection relay controlled by DEM 313 charge
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Table of Contents 1. Emergency power supply of alarm apparatus 2. Commissioning the battery module 2.1 Battery module DEM 316/DEM 317 2.2 Battery module DEM 317 A and DEM 317 B 2.3 Fusing the inputs and outputs 2.4 BATTERY CONTROL connection 2.5 Connection for battery charging 3. Notes for the user 3.1 Use of the battery is to be avoided in the following locations 3.2 Regulations for battery use 3.3 Storage and additional charging 3.4 Transport 3.5 Battery life 3.6 Battery recycling
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1. Emergency power supply of alarm devices Alarm devices require 2 independent energy sources, both of which must be able to power the alarm device alone. One of the energy sources must be the general mains supply or a similar network in non-stop operation. The other must be part of the apparatus (e.g. a battery) or an equivalent network fused separately. If the mains power supply is interrupted, the second source of energy must guarantee constant non-stop operation automatically and without in
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2.3 Fusing the inputs and outputs The batteries have individually fused outputs for the load connections. Thus all plus and minus lines are protected against excess currect and short. Different line cross-sections for consumers with low and high current can be connected to a battery at the same time, providing that the fuse values of their individual outputs are chosen accordingly. The maximum value of the fuses must not, however, exceed 20 A. The total amount of the currents of all the output
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Table II shows the maximum currents which can be drawn from the batteries. These must not be exceeded. This gives the maximum number of power amplifiers which can be powered by the batteries. I max max. number of power amplifiers* Battery in A DEM 287 DEM 288 DEM 289 type DEM 316 100 17 9 5 DEM 317 150 25 13 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 l
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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. No
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3.4 Transport If the battery is transported, it should never be exposed to excessive jolting or knocks. If a battery is connected to a device during transport, it must be secured well and the current circuit must be interuppted. 3.5 Battery service life Generally speaking, the battery service life in standy parallel operation amounts to 3 - 5 years and approximately 260 cycles at 100% discharge depth or more in cyclic operation. The actual service life is reduced if the appropriate operating co
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7. Explanation of terms: — Continuous battery power supply In this mode, the battery is constantly kept in full charge. It only gives off current if the DC source, supplied by the mains, fails. — Nominal capacity: The nominal capacity is the value in ampere-hours for a 20-hour even, uninterrupted discharge with I20 up to the discharge voltage of 1.75 V/cell at a temperature of 22°C. — Capacity: The capacity of a battery is the amount of electricity which can be extracted under the conditions
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8. Specifications battery modules Batterie-Module DEM 316 DEM 317 Nominal voltage 24 V 24 V Discharge voltage at 25°C (1) 19,5 V 19,5 V Nominal capacity for 20 hr 38 Ah 65 Ah Nominal discharge current I20 1.9 A 3.25 A Capacity for 5 hr (2) 33 Ah 55 Ah Capacity for 1 hr (3) 23 Ah 39 Ah Capacity for 1 C (4) 20 Ah 33 Ah Discharge current for 5 hr (2) 6.6 A 11 A Discharge current for 1 hr (3) 23 A 39 A Discharge current for 1 hr (4) 38 A 65 A Max. discharge current 100 A 150 A
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Block diagram
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DEM 316
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DEM 317A
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DEM 317B
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GARANTIE WARRANTY Das Werk leistet Garantie für alle nachweis- The factory grants warranty covering all ve- baren Material- und Fertigungsfehler für die rifiable material and manufacturing faults for Dauer von 36 Monaten ab Verkauf. Garan- a period of 36 months after purchase. War- tieleistungen werden nur dann anerkannt, ranty claims will only be upheld if valid, i.e. wenn gü
