B&K Precision 879B - Manual - Manual (Page 74)

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*IDN?
Description: Queries the instrument ID.
Response: <instrument model>, <firmware
version>, <serial number>
*LLO
Local Lockout. This means that all front panel
buttons, including the "USB" key is not available.
*GTL
Go to local. Puts the meter into the local state,
clearing the remote state and front panel lockout.
FREQuency Subsystem
FREQuency <value>
Description: Set measurement frequency
Parameters: Parameters are 100, 120, 1000,
10000 (879B only) or
100hz,120hz,1khz,10khz (879B
only)
Example: FREQuency 100hz
Set 100Hz frequency
FREQuency?
Description: Query the measurement frequency
Response: 100hz, 120hz, 1khz, 10khz (879B
only)