SPM-32A ... SPM-36A 4.2 Operation and features
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Fig. 4-19 Typical level difference display (ABS-REF); selective
measurement mode has been selected. The reference
level is shown in row D of the display. The reference
level can be entered after pressing the key sequence [*]
[ABS]. The instrument is precisely tuned to the input sig-
nal by using the up / down keys.
Reference level (REF)
When making level difference measurements the instrument
refers the measured absolute level to a reference level
(ABS-REF).
The reference level can be set in the following ways:
– By entering a numerical value using the number keys, or
by incrementing / decrementing the level by means of the
up / down keys.
– By storing a result and using it as the reference level.
Only one reference level can be defined at any one time.
However, up to 100 setups (and hence up to 100 reference
levels) can be stored using the "STO MEM" facility.
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