Technical data

Getting Started 1
U1401A User’s and Service Guide 9
The keypad at a glance
The operation of each key is shown below. A related
annunciator appears on the display and the instrument
beeps when a key is pressed. Turning the rotary switch to
another position resets the present operation of the key.
Figure 1-4 Keypad functions
5 Diode and continuity tests Constant current: ±25 mA
6 DC, AC, or AC+DC mA
measurements: 50 mA or 500 mA
• Constant voltage: ±1.5 V, ±15 V
• Constant current: ±25 mA
• Square wave output
Table 1 - 3 Rotary switch positions and their corresponding functions
No.
Description/Function
Input (white) Output (yellow)
1
2
7
3
4
5
6