Volts/Div Switches; Ac-Gnd-Dc Input Coupling Switches; Table 5-1: Probe Coding - Tektronix 2212 User Manual

Vertical
@
VOLTS/DIV Switches
*
With the VOLTS/DIV switches you select the vertical chan-
nel deflection factors. The selection is from 2 m V to 5 V per
division in a 1-2-5 sequence.
The VOL TS/DIV crt readout depends on the VOL TS/DIV
switch setting and the probe connected (with proper probe
coding, see Table 5-1).
Table 5-1: Probe Coding
Probe Coding Coding Resistance (usable)
1X Infinite
10X 10 kn ±5%
100X 5.6 kn ±5%
IDENTIFY*
on
The IDENTIFY coding will result in ID ENT being displayed on the
crt in stead of the corresponding VOL TS/DIV readout.
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AC-GND-DC Input Coupling Switches
With the AC-GND-DC Input Coupling switches you select the
coupling of the input signal from the CH
1
and CH
2
vertical
input connectors to the vertical amplifiers.
AC - In the AC position the input signal is capacitively
coupled to the vertical deflection and signal acquisition
systems. The de component of the input signal is blocked.
Selection of AC input coupling is indicated in the crt
readout by a tilde symbol("~") in the associated channel's
VOL TS/DIV readout.
GND - In the GND position the input of the vertical de-
flection channel is grounded and provides a zero (ground)
reference voltage display (and does not ground the input
signal!).
2212 User Manual
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