How To Set The „Leq" Time; How To Set The Alarm Value; How To Set The Time Of Auto-Power-Off; Calibration - sauter SU Instruction Manual

6 How to set the „Leq" time
Leq is used to access the rms average noise level over a preset period of time, often
the starting point of a noise assessment. To take the Leq measurement, the period
of time which has to be tested, must be selected. The longer the period of
measurement time, the more accurate the Leq reading will be. To set the period of
measurement time, the
"Leq" appears on the display. Then the key has to be released and the time has to be
selected among 10s, 1 min, 5 min, 10 min, 15 min, 30 min, 1 hour, 8 hours or 24
hours by pressing the Up (3-16) or Down (3-17) key.
To quit, any key except

7 How to set the alarm value

The alarm LED is on when the instant measurement value is bigger than or equal to
the alarm value set. The default setting value at the factory is 85dB. It can be
changed to any value between 30 and 130dB by the following steps:
The key 3-21 has to be pressed for about 5 seconds. It has to be released after
"AL" is shown on the display.
Then key or
To quit, any key except

8 How to set the time of Auto-Power-off

The default setting for auto power off at the factory is 5 minutes, which means that
the device will auto power off 5 minutes from the time of the last key operation. This
can be changed by the user to any value between 1 to 9 minutes by the following
steps:
The key 3-21 has to be pressed for about 10 seconds and it can be released after
"AUTO" is shown on the display. Then the
the time as desired. To stop the function of auto power off, time just has to be preset
to "0". So the device will not be powered off automatically, it can only be shut down
manually in that case.

9 Calibration

The standard method to calibrate the instrument requires an external calibrator
(ASU-01) in addition to a small screw-driver.

9.1 Calibration of the device with ASU-01

a) The device has to be turned on.
b) It has to be preset in the "A" weighting mode
c) It also has to be preset the "SLOW" response mode
SU-BA-e-1713
key 3-21 just has to be pressed for about 8 seconds until
or key can be pressed.
key have to be pressed to preset the alarm value as desired.
or key can be pressed.
or key has to be pressed to preset
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