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Summary of Contents for Omega HHSL402SD
- Page 1 ® User’ s Guide Shop online at omega.com ® e-mail: info@omega.com For latest product manuals: omegamanual.info MADE IN TAIWAN HHSL402SD Sound Level Meter With Data Logging SD Card...
- Page 2 Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification. The information contained in this document is believed to be correct, but OMEGA accepts no liability for any errors it contains, and reserves the right to alter specifications without notice.
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Page 3: Table Of Contents
TABLE OF CONTENTS Introduction ....... . . 3 Key Features ....... . 3 Operating Instructions . -
Page 4: Introduction
(using the “A” and “C” standards) and time weighting (fast or slow). The HHSL402SD can be calibrated by an optional laboratory instrument. -
Page 5: Operating Instructions
OPERATING INSTRUCTIONS WHAT’S IN THE CASE The HHSL402SD comes fully assembled in a hard carrying case along with a sound wind shield ball, a 2 GB SD memory card and this user’s manual. Figure 1 shows all of the controls and indicators on the front, right side, back and bottom of the HHSL402SD. -
Page 6: Setup
Now power on the instrument by pressing the POWER/ESC button (callout 1-2) to generate a short beep. (To power off the HHSL402SD, press the POWER button and hold it until the instrument responds with a long beep.) When the meter powers on, a series of transient startup screens will briefly appear. -
Page 7: Calibrating The Meter
(“yES” for enable; “no” for disable) is displayed. Press the REC/ENTER button to store the selection. If enabled, the power off function shuts off the HHSL402SD after a period of inactivity of ten minutes. -
Page 8: Normal Operation
NORMAL OPERATION To prepare to make sound level measurements, power on the HHSL402SD and make sure an SD card is firmly seated in the socket on the bottom of the meter. The meter’s default settings are auto ranging on (enabling measurements from 30 to 130 dB), “A” frequency weighting and fast time weighting. -
Page 9: Holding And Storing Measurements
AUTOMATIC VS. MANUAL DATALOGGING The HHSL402SD can automatically log data at a user-selected sampling period from 1 second 3,600 seconds (one hour). To view the sampling time that the instrument has been set up to use, press the button (which has the words “Sampling check”... -
Page 10: Transferring Data From The Sd Card To A Computer
3. To end automatic datalogging, press the REC/ENTER button and hold it for at least two seconds. This action causes the “REC” message to disappear. 4. To log data manually, set the sampling time to zero using Step 7 of the setup procedure. -
Page 11: Specifications
SPECIFICATIONS Embedded microcontroller Custom one-chip LSI device Display type Liquid-crystal with green backlight Display size 2.05 x 1.5 in. (52 x 38mm) Parameter measured Frequency range 31.5 Hz to 8 kHz Measurement range 30 to 130 dB in autoranging mode; user can also select fixed range of 30 to 80 dB, 50 to 100 dB, or 80 to 130 dB Measurement weighting By frequency and time;... -
Page 12: Maintenance Tips
MAINTENANCE TIPS When the icon appears in the left corner of the display, it’s time to replace the six “AA” batteries that power the instrument (although measurements will remain valid for several hours after the low-battery indicator first appears). Replacing the batteries requires removing the two screws that hold the battery compartment cover in place, as explained in step 1 of the setup procedure . - Page 13 CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical applications or used on humans.
- Page 14 Where Do I Find Everything I Need for Process Measurement and Control? OMEGA…Of Course! Shop online at omega.com TEMPERATURE Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies Wire: Thermocouple, RTD & Thermistor Calibrators & Ice Point References Recorders, Controllers & Process Monitors...
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