MRC SL-4012 Operation Manual
Text of the manual
Model : SL-4012
Your
purchase
of
this
SOUND
LEVEL
METER
marks a step forward for
you
into
the
field
of
precision measurement.
Although this METER is a
complex
and
delicate
instrument,
its
durable
structure will allow many
years of use if proper
operating techniques are
developed.
Please
read
the following instructions
carefully and always k
TABLE OF CONTENTS
1. FEATURES................................................................1
2. SPECIFICATIONS......................................................1
3. FRONT PANEL DESCRIPTION.....................................4
3-1 Microphone....................................................... 4
3-2 Display........................................
* Large LCD display, easy to read.
* Main functions are designed to meet IEC 61672 class 2.
* A & C weighting networks comply with standards.
* 0.5" standard microphone head.
* Time weighting (Fast & Slow) dynamic characteristic
modes.
* AC output for system expansion.
* RS232/USB computer interface.
* Auto range & Manual range selection.
* Av
30 - 130 dB.
Range
Resolution
0.1 dB.
Accuracy
* Meet IEC 61672 class 2, tested under
( 23± 5
℃ )
Input signal level on 94 dB &
frequency range from 31.5 Hz to
8 k Hz, refer to page 11.
Range selector
Auto range :
30 to 130 dB.
Manual range :
3 range, 30 to 80 dB, 50 to 100 dB,
80 to 130 dB, 50 dB on each step,
with over & under range in
Terminal 1 :
RS 232/USB PC serial interface.
* Connect the optional RS232 cable
UPCB-02 will get the RS232 plug.
* Connect the optional USB cable
USB-01 will get the USB plug.
Terminal 2 :
AC output terminal.
Terminal socket size :
3.5 mm dia. phone socket.
Calibration VR
Build in external calibration VR, easy to
calibrate on 94 dB level by s
