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The Edge^TM

Functional Requirements Include

Microphone : 1/4 inch prepolarized condenser (electret) field
 replaceable threaded microphone
Measuring range : 70dB -140dB
Windscreen : Rugged foam permanently attached to a threaded
 mount for maximum protection

Dosimeter

Independent Thresholds selectable from 70dB to 90dB or none
Independent Exchange Rates 3dB, 4dB or 5dB for each dosimeter
Independent Criterion Levels from 70dB to 90dB in 1dB increments

Measurement settings

RMS Range : 70 to 140dB
RMS Weighting : A or C
RMS Time response : Fast or Slow

Peak detector

Peak Range : 110 to 143dB
Peak Weighting : Selectable C or Z for models eg3 and eg4; Selectable A, C, or Z for the eg5 model (Peak is independent of the RMS dosimeter settings)

Displayed data/Values

•SPL               • Max Level     • exposure      • Projected Dose(eg5)
• Lavg or Leq   • Min Level      • Run Time
• TWA              • Peak Level    • LC-A(eg5)

Displayed status indicators

Battery
Memory
Run/Pause
Overload lndication
Dose Exposure indicator(Multicolored LED, user selectable)

Additional features

Calibration times displayed
Lock out security function (multilevel)
Device setup : Easy quick setup via QSP-II software in English, German, French, Spanish, Italian, and Portuguese
Data Logging – Lavg or Leq (1&2), Max, Peak and Overload Indication at one minute intervals (eg4 and eg5 models)

 * eg4 and eg5 have second independent dosimeters

Power / Electrical characteristics

Battery : LIthium Polymer (Flat cell)
Battery Life : eg and eg4 models 60+ hours, eg5 intrinsically safe  40 hours nominal without LED activated
Battery Charge : Quick charge in EdgeDock in 2 to 4 hours.  Recommended daily download data with simultaneous battery  charging for maximum efficiency
Memory capacity : 180 hours
Communications : Short haul serial Infrared (SIR) via the  EdgeDock

Standards

ANSI S1.25 Personal Noise Dosimeters
IEC61252 Personal Sound Exposure Meters
             * RoHS compliant
Intrinsic safety : (eg5)
    • IEC 60079-0:2004 and IEC 60079-11:2006
    • IECEx certification number: SIM 08.0012
    • MSHA, ATEX, North American Approvals (Pending)

Physical characteristics

Weight : 3 ounces (85 grams)
Size : 3.5” long x 2.1” wide x .75” thick (88mm x 53mm x 19mm)
          * eg5 is .82 (21mm) thick
Case material : Engineered Polymer
IP rated 65
Lockable windscreen
Keypad : 4 keys - Up Arrow, Down Arrow, Run/Stop, On/Off, Enter
Display : 128x64 LCD
Alligator Clothing Clip / Suspender Clasp
Variety of other mounting methods for hard hats, etc.

Docking station: single and five bay versions

Communications via the EdgeDock and USB to PC
Typical recharge in 2 to 4 hours
Complete instrument fits neatly into EdgeDock without removing mounting devices

Environmental characteristics

Operating Temperature Range : -10° C to 50° C (14° F to 122° F)
Storage Temperature Range : -25° C to 60° C (-13° F to 140° F)
Humidity Range : 0 to 95% Non-Condensing