Bias Voltage Control; Filter Control; Other Commands - Stanford Research Systems SR570 User Manual

IOSN n Sets the input offset current sign. 0 =
neg, 1 = pos.
IOUC n Sets the input offset cal mode. 0 =
cal, 1 = uncal.
IOUV n Sets the uncalibrated input offset
vernier. [-1000 ≤ n ≤ +1000]
(0 - ±100.0% of full scale).
Bias Voltage control commands
BSON n Turn the bias voltage on (n=1) or off
(n=0).
BSLV n Sets the bias voltage level in the
range. [-5000 ≤ n ≤ +5000] (-5.000
V to +5.000 V).
Filter control commands
FLTT n Sets the filter type according to the
following table:
n filter type
0 6 dB highpass
1 12 dB highpass
2 6 dB bandpass
3 6 dB lowpass
4 12 dB lowpass
5 none
LFRQ n Sets the value of the lowpass filter
3dB point. n ranges from 0 (0.03Hz)
to 15 (1 MHz). See table below
HFRQ.
HFRQ n Sets the value of the highpass filter 3dB
point. n ranges from 0 (0.03Hz) to 11
(10 kHz). See table below.
n
0
1, 2
3, 4
5, 6
7, 8
9, 10
11, 12
13, 14
15
ROLD Resets the filter capacitors to clear an
overload condition.

Other commands

GNMD n Sets the gain mode of the amplifier.
n
0
1
2
INVT n Sets the signal invert sense. 0=non-
inverted, 1=inverted.
BLNK n Blanks the front-end output of the
amplifier. 0=no blank, 1=blank.
*RST Resets the amplifier to the default settings.
11
filter frequency
0.03 Hz
0.1, 0.3 Hz
1, 3 Hz
10, 30 Hz
100, 300 Hz
1, 3 kHz
10, 30 kHz
100, 300 kHz
1 Mz
gain mode
Low Noise
High Bandwidth
Low Drift