REED ST-8850 Instruction Manual Download Page 3

reedinstruments

www

com

Maintenance & Cleaning

•.

Repairs or servicing that are not covered in this manual should be 
performed by qualified personnel only. For service on this or any other 
REED product, contact REED Instruments at [email protected].

•  Periodically wipe the case with a dry cloth. Do not use solvents or 

eradicator on this instrument. 

Safety symbols

.

Meter is protected throughout by double insulation 

.

 

or reinforced insulation.

When servicing, use only specified replacement parts.

   Complies with EMC

Features

This Sound Level Meter has been designed to meet the measurement 

.

requirements of safety engineers, health, industrial safety offices and 
sound quality control in various environments.
•  This unit conforms to the IEC651 type 2, ANSI S1.4 type 2 

.

for Sound Level Meters.

•  Ranges from 30dB to 130dB at frequencies 

.

between 31.5Hz and 8 kHz.

•  Display with 0.1dB steps on a 4-digits LCD.
•  With two equivalent weighted sound pressure levels, A and C.
•  Both AC and DC signal output is available from both standard 

.

3.5mm coaxial socket suitable for a frequency analyzer, 

.

level recorder, FFT analyzer, graphic recorder, etc.

Summary of Contents for ST-8850

Page 1: ...reedinstruments www com Model ST 8850 Sound Level Meter Instruction Manual...

Page 2: ...this or any other REED product or information on other REED products contact REED Instruments at info reedinstruments com Safety Read the following safety information carefully before attempting to o...

Page 3: ...only specified replacement parts Complies with EMC Features This Sound Level Meter has been designed to meet the measurement requirements of safety engineers health industrial safety offices and soun...

Page 4: ...range 65dB Alarm function OVER is show when input is out of range Maximum hold Hold readings the Maximum Value with decay 1dB 3minutes AC output 0 65 Vrms at FS full scale Output impedance Approx 600...

Page 5: ...wind speed over 10m sec please put protective accessories the windscreen provided in front of the microphone 2 Display SYMBOL FUNCTION LCD 4 digits MAX Maximum Value hold OVER Over range F Fast respon...

Page 6: ...ing the low frequency content of noise If the C Weighted level is much higher than the A Weighted level then there is a large amount of low frequency noise CAL 94dB Calibration using the internal osci...

Page 7: ...OUTPUTS Two outputs can be accessed through a 3 5mm stereo phone plug refer DC output Logarithmic signal 10mV dB Impedance 100 AC output Approx 0 65Vrms corresponding to each range step Impedance 100...

Page 8: ...old Mode function disable 2 Insert the microphone housing carefully into the insertion hole of the calibrator 3 Turn on the switch of calibrator 94dB 1kHz and adjust the CAL potentiometer of the unit...

Page 9: ...back of the meter and install a 9 volt battery in the battery compartment 2 Turn the power on and select the desired response time and weight ing If the sound source consists of short bursts or if it...

Page 10: ..._____ ________________________________________________ ________________________________________________ ________________________________________________ _______________________________________________...

Reviews: