Keysight E4981A - Setting up Contact Check; Setup Procedure

66 Keysight E4981A 120 Hz/1 kHz/1 MHz Capacitance Meter
Setting up Measurement Conditions and Display
Setting up Contact Check
4-
Setting up Contact Check
The E4981A contact check function can be used to check for contact failure
between the E4981A connector and the DUT.
When contact failure is detected, N.C. will appear on the display and a fixed
value (9.9E37) is always read out via GPIB/LAN/USB as the measurement
value, and the /LOWC_OR_NC signal of the handler interface goes Low.
Setup procedure
Step 1. Press [Meas Setup].
Step 2. Press the CONT CHECK softkey.
Step 3. Use the cursor keys to select the CONT CHK1 field.
Step 4. Use the following softkeys:
Step 5. Use the cursor keys to select the CC1 TH1 field. TH1 is a parameter
proportional to the contact resistance of Hp or Hc.
Step 6. Use the recommended setting value 0.1 (default value) for CC1 TH1.
The contact check function is available only at 120 Hz and 1 kHz
measurement frequency. This function does not works when range is set as
AUTO.
Softkey Description
ON Turns ON the contact check function to detect loose connection
OFF Turns OFF the contact check function
Table 4-4 Recommended setting value for TH1 and TH2
Range
TH1 TH2
120 Hz 1 kHz
10 nF 100 pF - 1 nF
0.1
1
1. Default value.
0.08
22 nF - 100 nF 2.2 nF - 10 nF 0.08
220 nF - 1 µF 22 nF - 100 nF 0.08
2.2 µF - 10 µF 220 nF - 1 µF 0.1
22 µF - 100 µF 2.2 µF - 10 µF
0.15
1
220 µF - 1 mF 22 µF - 100 µF N/A