6
Site Preparation Requirements
The Attendant Bluetooth Digital Chair Scale is a precision weight indicating instrument. It requires an acceptable
environment to operate at peak performance and reliability. This section is provided to assist you in obtaining such
an environment.
Environmental
• For indoor use only.
• Suitable for dry environments only RH < 90% and non-condensing environments.
• NEVER allow scale to get wet.
• The scale meets or exceeds all certification requirements within a temperature range of 14° to 104°F
(-10° to +40°C).
The scale should be placed out of direct sunlight and to provide adequate air circulation, keep the area
around the indicator clear.
Do not place the scale directly in front of a heating or cooling vent. Such a location will subject the indicator
to sudden temperature changes, which may result in unstable weight readings.
When using the AC power adapter, ensure that the scale has good, clean AC power and is properly
grounded. In areas subject to lightning strikes, additional protection to minimize lightning damage, such as
surge suppressors, should be installed.
Electrical Power
The Attendant Bluetooth Digital Chair Scale has been designed to operate from a 100 to 240 VAC 50/60Hz
12 VDC 1A wall plug-in UL/CSA listed AC power adapter. Note that a special order is not required for
operation at 230 VAC.
• The socket outlet shall be installed near the equipment and shall be easily accessible.
• On installations requiring 230 VAC power,
it is the responsibility of the customer
to have a qualified
electrician install the proper power adapter plug that conforms to national electrical codes and local
codes and ordinances.
Electrical Noise Interference
To prevent electrical noise interference, make certain all air conditioning and heating equipment, lighting
or other equipment with heavily inductive loads, such as welders, motors and solenoids, are on circuits
separate from the system. These sources of disturbances can affect the operation of the scale. Steps must
be taken to prevent possible adverse effects on the scale. For example, using simple line filters, isolation
transformers, power regulators or un-interruptible power supplies.
