Signal Input Commands - Stanford Research Systems SR844 User Manual

4-12 Signal Input

Signal Input Commands

WRSV(?){i}
AWRS
INPZ(?){i}
SR844 RF Lock-In Amplifier
The WRSV command sets or queries the Wide Reserve Mode of the instrument.
The parameter i selects High Reserve (i=0), Normal (i=1), or Low Noise
(minimum wide reserve) (i=2).
The AWRS command performs the Auto Wide Reserve function. This command is
the same as pressing Shift–WideReserveDown. AWRS automatically sets the
Wide Reserve Mode of the instrument to the minimum reserve without overload.
The INPZ command sets or queries the Signal Input impedance. The parameter i
Ω
selects 50 (i=0) or 1 M
Ω
(i=1).