NTi Audio Acoustilyzer AL1 User Manual

Page 25

Test Applications: “Timer Status” Setting

TIMER OFF

(applicable for standard measurements)

All values are recorded and monitored

continuously. The measurement timer

shows the actual testing period length.

Pressing the RESET icon sets the clock

and the test results back to zero.

TIMER SINGLE

Sound pressure level measurement with

user-defined time setting.
• Set the required test cycle period.
• The clock counts back to zero. After the

defined test time is completed, the clock

flashes ”00.00.00”.

• The test results Leq,

LCpeak and

MAX/

MIN SPL are frozen.

• Changing the test cycle period setting

or pressing the RESET icon restarts the

measurement.

TIMER REPEAT

Automatically repeat measurements with

user-defined test time interval.
• Set the required test cycle period.
• The measurement timer counts back to

zero. When the test time has elapsed ,

the clock and the test results are reset

and a new measurement is started.

• The previously measured Leq is

displayed as

PreLeq

(useful for Leq

monitoring at live concerts)

• Changing the test cycle period or

pressing the RESET icon restarts the

measurement.