6
LI0196 – 19 July 2017
Description
G.R.A.S. 42AG
dB
Hz
Met
dB
Hz
Met
On/Off
Display of ambient conditions
– temperature
– ambient pressure
– relative humidity
Status indicator - red/green
Display
Level selection
94 dB or 114 dB
Frequency selection
1 kHz or 250 Hz
Calibration coupler
Fig. 2.
42AG’s user interface.
Switches 42AG on and off. Automatic power off after 20 seconds.
Met
Displays temperature (˚C or ˚F), ambient pressure and relative humidity. The temperature may
be displayed in either degree Celsius (˚C) or degree Fahrenheit (˚F). To change the unit, keep the
button
Met
depressed during power on.
Hz
Toggles between 1 kHz and 250 Hz. Default is 1 kHz.
dB
Toggles between 94 dB and 114 dB. Default is 94 dB.
Status Indicator
. Lights green when the pressure in the coupler has stabilized.
Display.
Displays the actual values for calibration and ambient conditions.
.
o
N
l
a
i
r
e
S
888888888
G.R.A.S. 42
AG
Multifunction
Sound Calibrator
ANSI/
AS
A S
1.40 - 2
006 (R2
01
1) Class1
IEC 60942 Ba
tteries: 2xAAA (LR03)
1.5V
.
o
N
l
a
i
r
e
S
888888888
G.R.A.S. 42
AG
Multifunction
Sound Calibrator
ANSI/
AS
A S
1.40 - 2
006 (R2
01
1) Class1
IEC 60942 Ba
tteries: 2xAAA (LR03)
1.5V
Battery
compartment
Calibration button
(sealed)
Fig. 3.
Battery compartment and Calibration button.
Battery Compartment.
Holds two LR03/AAA batteries.
The Calibration Button.
This button is used when 42AG must be calibrated.
