Welch Allyn Spot Vital Signs 4400, Service Manual

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SpO2 specifications
Low Perfusion
All Sensors: ± 2 digits
Environmental specifications
Operating temperature 50°F to 104°F (10°C to 40°C)
Storage/Transport temperature -4°F to 122°F (-20°C to 50°C)
Operating altitude -1250 to 10,000 ft. (-381 m to 3,048 m)
Operating humidity 15% to 90% noncondensing
Storage/Transport humidity 15% to 95% noncondensing
USB flash drive requirements
The multiple vendor technologies used in the manufacture of USB flash drives make some of them
incompatible with this device. Common issues that cause flash drives not to function are NTFS
formatting, proprietary drive security, and the need for Windows drivers to run or access them.
The requirements for a USB flash drive to work with this device are the following:
•
Linux compatibility
• Up to 32 GB storage
• FAT 32 formatting
• USB 2.0 compliant
Dimensions: Assuming the USB flash drive will be inserted into the device, the length of the stick
does not matter. The size of the stick surrounding the USB metal head should be no larger than 9.5
mm x 18.5 mm to fit in the USB port.
Welch Allyn recommends the following USB flash drive for use with the device: Kingston
DataTraveler SE9 32 GB drive, part number DTSE9H/32GBZ.
Factory defaults
NOTE
Factory defaults are the settings in the device when it comes off the
manufacturing floor. Customized configuration files modify these defaults based
on preferences for specific sites. Restoring default settings on a device returns it to
its manufacturing floor defaults, not the custom configuration.
Device
Settings Default value
Date format MM/DD/YYYY
Service manual Appendix 91