Protection Class 1 Device
    t   The device must be plugged into a properly installed wall outlet which has 
a protective grounding conductor (PE). 
    Safety Precautions
3
  If you use an electrical outlet that does not have a protective grounding conductor, 
ensure that an equivalent protective conductor is installed by a certified electrician 
(as specified in the applicable regulations for installation in your country). The pro-
tective effect must not be negated by using an extension cord without a protective 
grounding conductor.
Before using for the fi rst time, any superstructure parts must be completely installed. 
Avoid connecting the equipment to lines that have a heavy electrical load, e. g. 
compressors, large machinery, etc.
  Warm-up Time
    To deliver exact results, the device must warm up for at least 30 minutes after 
connection to AC power. Only after this time will the device have reached the 
required operating temperature.
    Using a Verified Device in Legal Metrology:
    Ensure that there is a warm-up time of at least 24 hours after connection to the 
power supply.
    Connecting a Barcode Scanner (Accessory; Order No. YBR03PS2)
    t  Disconnect the indicator from AC power (unplug the AC adapter)
For CAW2P models:
t   Connect the barcode scanner via PS/2.
For CAW2S models:
t   Please see “Pin Assignment Charts,” page 15 (implemented via the YCC02-BR02 
connecting cable or as option M8)
  Getting Started