32 Agilent U1251A/U1252A User’s and Service Guide
1 Getting Started Tutorial
The Terminals at a Glance
Figure 1 U1252A Connector terminals
Tab l e  2 Terminal connections for different measuring functions
To avoid damaging this device, do not exceed the input limit. 
Rotary switch position Input terminal Overload protection
V . mV . Ω . 
.TEMP
COM  1000 V R.M.S., 
 for U1252A
 V for U1251A
1000 V R.M.S. for short circuit 
<0.3 A
Ω
μA . mA COM 440 mA / 1000 V 30 kA 
fast-acting fuse
A COM 11 A / 1000 V 30 kA 
fast-acting fuse
 for U1252A COM
COM 440 mA / 1000 V fast-acting 
fuse