Marmitek SD833 - Manual (Page 8)

7 © MARMITEK
A maximum of 1,500 meters (5,000 feet) of 18 AWG (0.82mm) wire can be used,
(maximum resistance between detectors 50 Ohm). The units are interconnected by
wiring all the terminals marked 1 together, and all the terminals marked 2 together
(as in figure 2 before screwing to ceiling). Draught from wiring openings, conduit, or
mounting boxes/holes, may blow smoke away from the sending chamber, making it
insensitive. It is essential that all such openings be closed by silicone sealant or
similar.
After wiring together the interconnect smoke detectors, test the first unit by
pressing the test button. All the detectors should alarm and the test button on the
first unit will flash about once a second. Check all the other units similarly.
8. TECHNICAL DATA
Antenna:
Built-in Internal Whip
Frequency: 868.35MHz FM
Current Consumption: 30mA (transmission), 20µA (standby)
Power: 9V Alkaline Battery
RFI Immunity: 40V/m
Ambient temperature: 0° C to + 60° C (operation)
Dimensions: 138 x 118 x 44mm
Specifications may be modified without prior notice.
Environmental Information for Customers in the European Union
European Directive 2002/96/EC requires that the equipment bearing this symbol
on the product and/or its packaging must not be disposed of with unsorted
municipal waste. The symbol indicates that this product should be disposed of
separately from regular household waste streams. It is your responsibility to
dispose of this and other electric and electronic equipment via designated
collection facilities appointed by the government or local authorities. Correct disposal and
recycling will help prevent potential negative consequences to the environment and human
health. For more detailed information about the disposal of your old equipment, please contact
your local authorities, waste disposal service, or the shop where you purchased the product.