Instruction Manual for Libra Care Bed
Page 17
2.3.7 Materials used
For the most part, the bed is manufactured from steel profiles whose surfaces are finished
with a polyester powder coating or a metal coating of zinc or chrome.
The head and footboards and safety sides are made of wood or wood-based material with
sealed surfaces. All surfaces that can be touched during normal use have been tested for
bio-compatibility and are harmless to humans when in contact with the skin. Structural design
Mattress base
The mattress base is divided into a backrest, a fixed seat section, a thigh rest and a lower leg
rest. The rests are adjustable. The mattress base can be raised and lowered horizontally or
set to the reverse-Trendelenburg position with the foot end lowered (optional Trendelenburg
position also available).
Bed chassis
The chassis is constructed from welded steel tubing with an optimised scissor lift design and
is equipped with four castors (optionally with 8 castors for the Libra – floor access Plus
variant) which can all be locked in pairs on the foot and head end.
Safety sides
The bed has a full-length safety side to protect the resident from falling out of bed (2) or
optionally,
• a combined safety side (6),
• a split telescopic safety side (D).
The safety sides can be raised, one after the other, from the lowered position to provide
protection for the resident, and then lowered again when no longer required.
Electric drive system
The bed’s electrical drive system is first-error-secure, flame-resistant (UL94V-0) and consists
of:
• Electricity supply via:
o An "external" switch mode power supply. The switch mode power supply consists
of a voltage transformer and a low-voltage connection cable. The voltage
transformer generates a protective low voltage that is safe for residents and
users. The switching power supply provides the control unit of all drives (motors)
with protective low voltage via a connection cable and a cable harness.
o (Optional) 230 V mains cable. In this case, the 230 V mains supply is
transformed to 24 V by the control unit.
• the central control unit. All drive motors and the handset are connected to the central
control unit via plug connections which work with protective low voltage.
• Electric motors for the backrest and thigh rest.
• Two electric motors for adjusting the height of the mattress base.
• A handset with a hook.
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