1.Safety Information
Rear Panel Overview
Figure 2-2 Rear panel overview
（
Take the -U model for instance
）
Ite
m
Name
Description
1
Communication
interface
-R models can be connected to a computer through a serial p
ort;
-U model can be connected to the computer via USB Device.
2
Line Fuse
The fuse rating is
250 V, F1AL
. To replace the fuse, see
page 41, Appendix C: Line Fuse Replacement.
3
AC Mains Input
AC mains input connector.
User Interface
Trigger Mode
Reading
Range
Function
Operation Menus
Unit
Status Icon
Trigger Mode
Status Icon
9
