User`s Manual Sound Level Alert Model SL130
Contents
1. Green 3 LED s are green while dB level is above set point LED s are green while dB level is above set point Low ALARM Red Green 2 40 second flashing red indication when level transitions from High to Low 40 second flashing red indication when level Fed s transitions from High to Low 5 SL130 EU ENG 3 1 6 08 MAX Hold The MAX display indicates and holds the highest dB level measured MAX 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 92 TB To clear the display and start a new measurement session press the 4 f0 E iS front panel MAX RESET button If the measured level exceeds the zi maximum for the range selected the MAX display will indicate OL overload Programmable OFF ON AUTO time The meter is powered by 8 AA batteries or via an AC adaptor for permanent installations Continuous battery life is approximately 240 hours 10 days By programming the ON OFF time the battery life can be greatly extended 30 days assuming an 8 hour day The ION and times are programmed as described in the initial configuration paragraph The meter will operate continuously with the power switch in PFE itn MTD the ON position The ON OFF time will be controlled by the meter when ICJ the power switch is set to the AUTO position Calibration The sound level meter should be calibrated on a regular basis2. LED color switch Red position High Low Limit Alarm switch HIGH Remote Alarm output connector ALARM AC adaptor connector OUTPUT 6 DG av o Rear Panel Tilt stand Battery compartment AC Adaptor connector Remote Alarm output connector Windscreen 3 SL130 EU ENG 3 1 6 08 Sound Level Monitor Operation Measurement Considerations Use a windscreen to cover the microphone in windy conditions Calibrate the meter often especially if the meter has been idle for a long period of time Do not store operate the meter in areas of high temperature or humidity Keep the meter and the microphone dry OV PB NE 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 Connect the AC adaptor to the side or rear AC adaptor connector 2 Setting the TIME a Press and Hold the Time SET button until the hours display begins to flash 9 e b Press the Time up arrow button until the hour is set c Press the SET button The minutes display will flash Adjust as needed d Press the SET button to step through and the arrow button to adjust Time of day Hour Time of day Minutes Time of day AM PM 24 Hour Year Month Day Auto ON Hour Auto ON Minutes Auto OFF Hour Auto OFF Minute A C Frequency Weighting Change the Frequency Weighting by pressing the Q A C button The A or C icon will
3. to assure that the meter s performance and microphone sensitivity has not change Some operational directives require daily calibration checks Extech offers several acoustic calibrators to perform the calibration 1 Set the meter to the 60 to 110dB or 80 to 130dB range 2 Place the external calibrator over the Sound Level Monitor s microphone and turn the Calibrator on 3 The meter should read close to the calibrator s dB output level Typical Calibrator output levels are 94dB and 114dB 4 If the meter is within 0 2 dB of the calibrator s output no adjustment is necessary 5 Adjust the calibration pot on the rear of the meter to the proper level Meter Placement The meter can be used Handheld Wall mounted Desk mounted or Tripod mounted For wall mount operation orient the microphone perpendicular to the wall to minimize the affect of acoustic reflections For desk mounting extend the rear legs and lock in place with the hinged locks The tripod mounting nut is located on the bottom of the unit H N 6 SL130 EU ENG 3 1 6 08 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 Inser
4. User s Manual EXTECH INSTRUMENTS Sound Level Alert Model SL130 4 10 3 15 lg LIMIT A S 7508 Sound Level Alert sL130 gt Meets IEC Type 2 Sound Level Meter Standards gt Settable Limit with large bright High Low LED level exceed indicators gt Wall or Desk mountable gt Extra large LCD display with bargraph gt 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 Professional features include programmable A C Weighting and Fast Slow Response time Max Memory with time stamp and a Clock display The microphone can be rotated 180 degrees to accommodate any meter location The bright LED s are functional only when the AC power adaptor is used Careful use of this meter will provide years of reliable service Specifications Applicable standards Meets IEC 60651 1979 and ANSI S1 4 1983 Type 2 SLM standards Display 11 7 x 7 94cm 4 6 x 3 125 multifunction LCD F
5. appear on the display With A weighting selected the frequency response of the meter is similar to the response of the human ear A weighting is commonly used for environmental or hearing conservation programs such as OSHA regulatory testing and noise ordinance law enforcement C weighting is a much flatter response and is suitable for the sound level analysis of machines engines etc Most noise measurements are performed using A Weighting and SLOW Response Slow Fast Response Press the button to select Fast or Slow response as desired F or S will appear in the bottom of the LCD display Select FAST to capture noise peaks and noises that occur very quickly Select the SLOW response to monitor a sound source that has a consistent noise level or to average quickly changing levels Select Slow response for most applications 4 SL130 EU ENG 3 1 6 08 Range Selection Slide the Range switch to the 30 80 60 110 or the 80 130 position 39 80 80 130 B The selected range will be indicated on the LCD bargraph If the i 10 measured dB level exceeds the range selected OL will be 60 410 displayed If the measured dB level is below the selected range will be x 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 Use the 30 to 80dB range in quieter areas such as offices and class
6. requency bandwidth 31 5 Hz to 8 KHz Microphone 13 2mm 0 5 Electret Condensor Microphone Measurement ranges 30 to 80dB 60 to 110dB 80 to 130dB Frequency weighting A and C Response time Fast 125ms Slow 1s Resolution 0 1dB Max Hold Maximum reading is displayed with time stamp Alarm output 3 5mm Mono Phone Plug 3 4mA 5 Vdc typical Limit range 30 to 130dB Under range indication ee e6 Over range indication OL Power AC adaptor 9V 500ma 8 AA batteries without the LED feature Battery life 240hrs continuous approx 30 days 8hrs day LED s are not functional when battery powered Operating temperature 0 to 50 C 32 to 122 F Operating humidity Less than 80 RH Dimensions Weight 22x18x3 2cm 285g 8 75x7 1x1 25 0 63 Ibs 2 SL130 EU ENG 3 1 6 08 Meter Description A ON EO OT RS Ga IN 0 Microphone Over Limit Display Bargraph dB display OFF ON AUTO switch Alert LEDs Clock display Max level display with time stamp Set limit MAX RESET button Rear Control Panel OT po wy gt Range select switch 4 Time set buttons Limit set buttons 30 ons fi Oo lo Calibration adjustment sar 2 60 110 A C select button F S select button Side Panel 1 l LED color switch Green position 2 LED color switch Red Green position
7. rooms Note When the range is changed the Max display may indicate an overload OL Press the MAX RESET button to clear the MAX display High Limit Set Press the up or down LIMIT arrow buttons to set the High Low limit LI M IT set point as displayed on the LCD If the measured dB level 74 exceeds the set limit the IE indication will appear in the display rs 1S dB and the over limit signal will appear at the alarm output connector The display indication and output signal will remain active as long as the sound pressure level exceeds the set limit High Low LED Alert The four LEDs are used to alert users when a sound level either exceeds or goes below the Limit set point This feature is available only while the AC adaptor is used to power the meter It is disabled under battery power The LEDs will provide a steady or flashing colored indication depending on the setting of the side panel ALARM and LED Color switch settings The three LED Color Selection switch positions are 1 RED 2 RED GREEN 3 GREEN i Alarm Alert Switch LED response Switch Red 1 LED s flash red while dB level exceeds set point LED s flash red while dB level exceeds set point High ALARM Red Green 2 40 second green indication when level transitions from high to low 40 second green indication when level transitions Green 3 from high to low
8. t the batteries into battery holder observing the correct polarity 4 Put the battery cover back in place You as the end user are legally bound Battery ordinance to return all used batteries and accumulators disposal in the household garbage is prohibited You can hand over your used batteries accumulators gratuitously at the collection points for our branches in your community or wherever batteries accumulators are sold Disposal Follow the valid legal stipulations in respect of the disposal of the device at the end of its lifecycle CAUTIONS e This device is not a toy and must not reach children s hands It contains hazardous objects as well as small parts that the children could swallow In case a child swallows any of them please contact a physician immediately e Do not leave batteries and packing material lying around unattended they can be dangerous for children if they use them as toys e Incase the device is going to be unused for an extended period of time remove the batteries to prevent them from draining e Expired or damaged batteries can cause cauterization on contact with the skin Always therefore use suitable hand gloves in such cases e See that the batteries are not short circuited Do not throw batteries into the fire Copyright 2006 Extech Instruments Corporation All rights reserved including the right of reproduction in whole or in part in any form 7 SL130 EU ENG 3 1 6 08
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