Units are available to suit a wide range of applications including PLC and industrial PC control systems requiring buffering for just a few minutes as well as remote installations needing back-up for up to many hours all depending on the load and battery size used. The PULS UB10.242 for example delivers 240 W 24 V with storage of up to 130 Ah and can support load peaks as well. Another brand new unit is the UB20.241 that can support loads of up to 480 W.
The PULS DC-UPS range features the One Battery Concept which PULS claims ensures the longest possible service life for emergency stand-by batteries. The One Battery Concept also enables operators to spot defective batteries by managing the battery individually which other systems using two batteries connected in series cannot.
The system also incorporates a device to continually monitor battery condition and give early warning of failure. Battery life is further extended by limiting the extent to which the battery is discharged during buffering. The limitation can be selected using a rotary switch or activated using the 'inhibit input' feature. Again this is only possible by utilizing the one battery concept to have individual battery management.
Other diagnostic features include LED signalling for operation modes like charging, buffer mode or warning of possible faults.
Visit PULS at www.puls.co.uk