16
Calibration Procedure
In order to calibrate the R8070SD, an external calibrator that can provide
a 94.0dB signal is required (REED R8090). If the meter has been exposed
to extreme conditions or has not been used in a long period of time the
meter should be calibrated by following steps 1 through 7 below.
1. Remove the windshield ball.
2. Power on the meter.
3. Select "50 - 100dB" range.
4. Select "FAST" time weighting.
5. Select "A" weighting.
6. Insert Microphone into the sound calibrator's microphone adapter.
7. Power on the sound calibrator (R8090).
If the measured value is not within "94 ±0.2" dB, adjust the meter's
calibration potentiometer until the display matches the output of the
calibrator (94.0dB).
Data Stream Output
Using Terminal application, a data stream can be viewed from the RS-232
output, Connect the RS-232/USB cable between the product and
terminal/PC and use the following setting to view the data stream.
Terminal Settings:
• Bits per second: 9600
• Data bits: 8
• Parity: None
• Stop bits: 1
41170100000715 =
+71.5 dB
Reading
Decimal Place 0-3
Positive (+) = 0, Negative (-) = 1
dB = 17
1
4
continued...
REED Instruments
1-877-849-2127 | [email protected] | www.reedinstruments.com
