Keysight E4981A 120 Hz/1 kHz/1 MHz Capacitance Meter 165
Using Scanner Interface
Control/Check the Scanner Interface for Maintenance
When the source voltage is between 5 V - 9 V, switch S1 is ON (closed) and
current flows through the input signal resistance of 1 kΩ.
When the source voltage is between 9 V - 15 V, switch S2 is ON (closed) and
current flows through the input signal resistance of 2.27 kΩ.
Power source
You can use only the external power source (EXT_DCV). Set its power output
within the following voltage range.
Control/Check the Scanner Interface for Maintenance
To control/check the Scanner interface, the Keysight E4981A provides several
test commands related to various operations of scanner interface. This section
explains the various test commands available in E4981A to check/trouble the
scanner interface.
Starting Scanner interface test
Scanner interface can be set into test mode by using the
:TEST:SCANner:MODE command. When this command value is set to ON, the
scanner interface pin signal value can be controlled/read by :TEST:SCAN:xxxx
commands.
Using Scanner interface test commands
After setting the :TEST:SCANner:MODE command value to ON, the following
commands can be used to control/read the scanner interface pin signal value:
• :TEST:SCANner:CH sets the Scanner Channel No.
• :TEST:SCANner:EOM sets the Scanner End of Measurement (EOM) status to
HIGH/LOW.
• :TEST:SCANner:INDex sets the Scanner Index value to HIGH/LOW.
• :TEST:SCANner:VALid? gets the Scanner/CH_VALID signal status as
HIGH/LOW.
If the parameter set is out of range, an error is generated.
Voltage range [V]
EXT_DCV +5 to +15