HP 3562A Operating Manual page 344

RANGE--displays the range menu, which is used te select autoranging or manual ranging fer
each input channel. Setting the input range is critical fer making distortion-free meas­
urements with optimum sensitivity and amplitude resolution. The range should be set
at such a level that the input signal stays in the top half ofthe range. Autoranging auto­
matically ensures the proper range setting. When using manual ranging, set the range
so that the HALF RANGE indicator is on, but OVER RANGE is not.
AUTO 1 RNG U P-selects autoranging for Channel l This continually monitors and
adjusts the input range to ensure that the signal level is at least half-scale but
not greater than full-scale. Autoranging does not interrupt averaged meas­
urements, time captures or time throughputs. AUTO 1 RNG UP allows auto­
ranging to increase the range only. This is useful for measuring transients,
performing impact testing, and when using random noise.
AUTO 1 U P&DWN-selects autoranging for Channel 1 (refer to AUTO 1 RNG UP for a
description). This differs from AUTO 1 RNG UP in that this allows autorang­
ing to adjust the range in either direction. Autoranging up/down is incom­
patible with sources and signals that are intentionally off for some part of the
time record (e.g., bursts and impacts).
AUTO 2 RNG U P-selects autoranging for Channel 2. This continually monitors and
adjusts the input range to ensure that the signal level is at least half-scale but
not greater than full-scale. Autoranging does not interrupt averaged meas­
urements, time captures ortimethroughputs. AUTO 2 RNG U P allows auto­
ranging to increase the range only. This is useful for measuring transients,
performing impact testing, and when using random noise.
AUTO 2 UP&DWN-selects autoranging for Channel 2 (referto AUTO 2 RNG U P for a
description). This differs from AUTO 2 RNG U P in that this allows autorang­
ing to adjust the range in either direction. Autoranging up/down is incom­
patible with sources and signals that are intentionally off for some part of the
time record (e.g., bursts and impacts).
CHAN 1 RANGE-used to manually set the input range for Channel l The range can
be set anywhere from
CHAN 2 RANGE-used to manually set the input range for Channel 2. The range can
be set anywhere from
51 dBV (3.972 mVpk) to + 27 dBV (3l547 Vpk).
-
51 dBV (3.972 mVpk) to + 27 dBV (31.547 Vpk).
Chanter 12-0perating Reference
RANGE
12-55