Welch Allyn RETeval-DR, Directions For Use Manual

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Equipment serial number
Each RETeval-DR device has a unique equipment serial number. The equipment serial
number may appear in one of two formats.
The serial number takes the form R # # # # # #.
R
Product code is R
# # # # # # Production sequence number (5 or 6 digits)
Locate the serial number on the device
1. Remove the battery cover.
2. Pivot the battery away from the device to locate the serial number.
The serial number begins with the letter "R."
Locate the serial number in Systems
1. Scroll to Settings and then press the joystick.
2. Scroll to System and then press the joystick.
The System Information screen appears showing the following information.
•
The firmware version
• The serial number
• The number of tests completed
5