Tektronix TDS2022C Technical Reference page 18

Specifications
Table 1-1: Signal acquisition system characteristics (cont.)
Characteristic
Sensitivity Range
Display Gain Variable
Probe Scale Factors
Acquisition Modes
Retained Front Panel
Settings
Math Modes
Voltage Measurement
Functions
√ DC Gain Accuracy,
Sample or Average
Acquisition
1–2
Description
2 mV/div to 5 V/div in 1-2-5 sequence with the probe attenuation set to 1X.
The Display Gain Variable function allows the user to vary the vertical display gain continuously over the
full range.
Resolution is that of the coarse gain from which these data are constructed. Fine gain values (for
instance 120 mV/div) are acquired at the next higher coarse gain setting (in this case 200 mV/div).
The Display Gain Variable is achieved by digital multiplication of the data to obtain the settings between
the 1-2-5 gain settings.
Hard copy outputs to printer will be exactly the same as seen on screen even when the Display Gain
Variable is used.
However, WAVEFORM DATA obtained through the I/O interface is limited to the 1-2-5 gain settings.
1X, 10X, 20X, 50X, 100X, 500X, 1000X voltage attenuation.
5, 1, 500 m, 200 m, 20 m, 10 m, 1 m V/A current scale factor.
This adjusts the display scale factor of the instrument to accommodate various probe types.
Accuracy of the probe used must be added to the accuracy specifications of instrument.
No automatic probe interface is provided, so you must verify that the settings match the probe
characteristics. The probe check function allows setting of the proper attenuation for voltage probes.
Sample, Peak Detect, Average
Envelope mode not provided
Front panel settings are retained when the instrument power is turned off and on with the power switch.
The settings are retained when the line power is turned off and on.
The instrument periodically saves front panel settings after settings are changed. There is a delay of
three seconds after the last change and before the storage of the settings in memory.
All Units:
Channel 1 - Channel 2
Channel 2 - Channel 1
Channel 1 + Channel 2
Channel 1 * Channel 2 FFT
4 channel units (TDS20X4C):
Channel 3 - Channel 4
Channel 4 - Channel 3
Channel 3 + Channel 4
Channel 3 * Channel 4
Mean, Cyc RMS, Peak-to-Peak, Max, Min, RMS, CursorRMS
This is the difference between the measured DC gain and the nominal DC gain, divided by the nominal
DC gain and expressed as a percent.
±3%, 5 V/div through 10 mV/div
±4%, 5 mV/div and 2 mV/div
TDS2000C Series Oscilloscope Service Manual