User's Manual Sound Level Alert Model SL130 ¾ Meets IEC Type 2 Sound Level Meter Standards ¾ Settable Limit with large bright High/Low LED level exceed indicators ¾ Wall or Desk mountable ¾ Extra large LCD display with bargraph ¾ Maximum level display with time stamp
Introduction Congratulations on your purchase of the Extech SL130 Sound Level Alert. Designed for wall mount, desk, tripod mount operation, this meter meets IEC Type 2 Sound Level Meter standards. Included is a High/Low Limit Set Point with 4 two color high intensity LED limit exceed indicators and a large OVER indication when the set level is exceeded. An Alarm Output can be used to drive a larger or a remote indicating device such as a “QUIET” sign.
Meter Description 1. Microphone 2. Over Limit Display 3. Bargraph 4. dB display 5. OFF/ON/AUTO switch 6. Alert LEDs 7. Clock display 8. Max level display with time stamp 9. Set limit 10. MAX RESET button Rear Control Panel 1. Range select switch 2. Time set buttons 3. Limit set buttons 4. Calibration adjustment 5. A/C select button 6. F/S select button 1 30-80 2 4 5 6 3 80-130 LIMIT 60-110 Side Panel 1. LED color switch – Green position 2.
Sound Level Monitor Operation Measurement Considerations 1. Use a windscreen to cover the microphone in windy conditions. 2. Calibrate the meter often, especially if the meter has been idle for a long period of time. 3. Do not store/operate the meter in areas of high temperature or humidity. 4. Keep the meter and the microphone dry. 5. Avoid severe vibration when using the meter. 6. Remove the batteries when the meter will be stored for long periods of time. Initial Configuration 1.
Range Selection Slide the Range switch to the 30-80, 60-110 or the 80-130 position. The selected range will be indicated on the LCD bargraph. If the measured dB level exceeds the range selected “OL” will be displayed. If the measured dB level is below the selected range “- - -“ will be displayed. Normally, select the range in which the upper dB level is greater than any expected sound pressure level. The 60 to 110dB range is the most commonly used range.
MAX Hold The MAX display indicates and holds the highest dB level measured since the meter was turned on or since the Max Reset button was pressed. The time and date of the max reading is also displayed. To clear the display and start a new measurement session, press the front panel MAX RESET button. If the measured level exceeds the maximum for the range selected the MAX display will indicate “OL” (overload).
Battery Replacement AC power is the normal power source for this meter. If 8 AA batteries are used, they are located in the rear battery compartment. When the battery icon appears on the meter's LCD, it is time to replace the batteries. 1. Turn power off. 2. Open the rear battery cover 3. Insert the batteries into battery holder, observing the correct polarity. 4. Put the battery cover back in place.
