N93-582-01 Issue 1 NH Page 35 of 42 © Protec Fire Detection plc 2015
14.0 Digilite® DL500 Technical Specification
Functional Specification
Number of Loop Devices Up to 500
Number of Test Groups Up to 28
Connectivity
TCP/IP Interface available to permit connection to a Protec graphics system, or
to allow remote interrogation and monitoring using the DigiView Web-server.
Group Test Time of Day Programmable on a Group Basis
Group Test Day of the Month Programmable on a Group Basis
Functional and Duration Test Times Programmable on a Group Basis
Duration Test Month Programmable on a Group Basis
Mounting 3 points surface mount or flush ( no bezel required when flush mounting )
Power Requirements
Rated Voltage 100 to 240V ac rms
Rated Frequency 45 to 60 Hz
Rated Current 600mA rms
Maximum Inrush Current 20A at 240V from cold
Current Consumption from Batteries
( low battery cut-off condition)
Less than 150µA ( Digilite® DL500 turns off )
Mains Input Fuse 1,6A time delay ( not user or engineer replaceable )
Battery Type
2 x 12V 3.3Ah Sealed Lead Acid ( connected in series )
Only use batteries recommended by Protec ( see appendix 1 )
Battery Protection Internal self resetting thermal 'fuse' protects against battery over current
Output Voltage 24 – 29V dc with mains present , 17 – 29V dc on batteries
Output Ripple Voltage 400mV maximum ( peak to peak ) at full output load
Battery Charge Voltage
27.3V at 20 degrees C. Temperature compensated at
– 40mV / deg C. Protected by 1.6A self resetting thermal fuse
Battery Charge Current 250mA ( ± 25mA )
Battery Over Voltage Fault Level 28,5V dc
Battery Under Voltage Fault Level 22V dc
Battery Low Voltage Cut-off Level 18,5V dc Battery Voltage ( Digilite® DL500 turns off )
Battery Monitoring Charger dip, battery load and internal impedance
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