Table of Contents
Advertisement
RMS Frequency Weighting:
GA213
A and C weightings according to IEC 61672-1 Class 2,
IEC60651
Type 2
GA215
A and C weightings according to IEC 61672-1 Class 2,
IEC60651
Type 2
GA256
A weighting according to IEC 61672-1 Class 2
Time Weightings:
GA213
S and F according to IEC 61672-1Class 2,
IEC 60651 Type 2
GA215
S and F according to IEC 61672-1Class 2,
IEC 60651 Type 2
Level Ranges (dB)
Linear Operating
Range (IEC 61672-1
:2002 1kHz)
GA213/GA215
35 – 100
55 – 120
75 – 140
GA256
70 – 137
Peak Hold
Display Range
GA213/GA215
63 - 103
83 - 123
103 -143
GA256
100 - 140
(Primary Indicator Range allows for a crest factor of 10dB)
Primary Indicator
Range (IEC 60651
: 2001 1kHz)
35 - 93
55 - 113
75 - 133
70 - 130
Display
Range
34 – 101
54 – 121
74 – 141
69 – 141
14
BATTERY INSTALLATION
To prepare the equipment for use a heavy duty alkaline battery type 6LR61
should be fitted, such as a Procell/Duracell MN1604, Ever Ready 6LF22 Gold
Seal, or equivalent.
The battery door is located on the bottom left hand side of the instrument.
Open the battery door cover by sliding the cover downward towards the bottom
of the instrument. The cover will now swing open exposing the battery
compartment. Insert the battery observing the correct polarity as marked on
the case wall.
Close the battery compartment door by reversing the procedure above. The
instrument is now ready for calibration and use.
THE MICROPHONE
The microphone capsule fitted to your instrument is a class 2 instrumentation
grade 1/2 inch capsule.
The microphone assembly is not removable. The GA256 is fitted with a DOSE
meter microphone assembly in order that it can be attached to the collar of a
noise exposed worker.
WARNING: DO NOT TWIST THE
MICROPHONE ASSEMBLY
All
All
3
Advertisement
Table of Contents
