Technical data

54 U1401A User’s and Service Guide
3 Making Measurements
Measuring Resistance and Testing Continuity
To measure resistance, follow these steps:
1 Turn the rotary switch to the Ω position.
2 Connect the red and black test leads to the positive and
negative input terminals respectively.
3 Probe the resistor (or shunt) leads and read the display.
To perform continuity test, press to toggle the audible
continuity function ON or OFF.
For the 500 Ω range, the instrument will beep if the
resistance value falls below 10 Ω. For other ranges, the
instrument will beep if the resistance falls below the typical
values indicated in the table below.
CAUTION
Disconnect circuit power and discharge all high-voltage capacitors before
measuring resistance to prevent possible damage to the instrument or the
device under test.
Table 3 - 1 Measurement ranges for audible continuity
Measurement range Resistance threshold
500.00 Ω 10 Ω
5.0000 kΩ 100 Ω
50.000 kΩ 1 kΩ
500.00 kΩ 10 kΩ
5.0000 MΩ 100 kΩ
50.000 MΩ 1 MΩ