User's Manual
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Sound Level Alert
Model SL130
Meets ANSI and IEC Type 2 Sound Level Meter Standards
Settable High Limit with large bright High/Low indication and Alarm Output
Wall or Desk mountable
Extra large LCD display with bargraph
Maximum level display with time stamp
Optional alarm kit drives remote over limit indicators.
99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Introduction
Congratulations on your purchase of the Extech SL130 Sound Level Alert. Designed for
wall mount, desk, tripod mount or hand held operation, this meter meets ANSI and 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 in conjunction with the optional Alarm
Module Kit to power 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 or it can be placed at a remote location using
the optional Remote Microphone Cable. A programmable ON/OFF time extends battery life
to 30 days when programmed 8 hours per day. 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
Display 11.7 x 7.94cm (4.6” x 3.125”) multifunction LCD
Frequency bandwidth 31.5 Hz to 8 KHz
Microphone 0.5” Electret Condensor Microphone (remoteable)
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 “- - -“
Over range indication “OL”
Power AC adaptor (9V@500ma) or 8 AA batteries
Battery life 240hrs continuous (approx); 30 days @ 8hrs/day
Operating temperature 0 to 50oC (32 to 122oF)
Operating humidity Less than 80% RH
Dimensions / Weight 22x18x3.2cm / 285g (8.75x7.1x1.25" / 0.63 lbs).
SLM standards
(LED’s are not functional when battery powered)
2
Version 3.2 8/07
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
FAX 781.665.0780 - TestEquipmentDepot.com
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
Side Panel
1. Alert switch – Green position
2. Alert switch – Red-Green position
3. Alert switch – Red position
4. High-Low Alarm switch
5. Remote Alarm output connector
6. AC adaptor connector
30-80
1
60-110
80-130
LIMIT
5
4
6
3
2
Rear Panel
1. Tilt stand
2. Battery compartment
3. AC Adaptor connector
4. Remote Alarm output connector
5. Windscreen
3
Version 3.2 8/07
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