Q-300 | Noise Dosimeters | Sound Level Meters

The Q-300 is a comprehensive datalogging personal noise dosimeter and integrating sound level meter in one package.

The Q-300 fulfills applications where detailed exposure profiles are needed and computer analysis, storage, retrieval, reporting and charting are important.

Operating instructions are so simple we’ve placed them on the inside of the instrument’s protective keypad cover plate.

Two security levels protect your work from accidental setup changes, turn-off or reset.

The Q-300 displays SPL, Min and Max levels, Peak Level, Averages (Leq or Lavg), TWA, SEL, Dose, Projected Dose and Exposure in Pascal Squared Hours.

A Q-300’s Event function makes surveying a variety of locations easy. Just keep track of where you went and the Q-300 will do the rest, keeping information separated in memory so you can analyze each location individually or combine events in QuestSuite Professional software.

Q-300 Technical Specifications

Standards:

ANSI S1.25 - 1991, ANSI S1.4 - 1983: Type 2 IEC 651 - 1979, IEC 804 - 1985: Type 2, IEC 1252 - 1993

Measuring Range:

40-110dB or 70-140dB. Maximum level is for sinusoidal signals. A signal with a 10dB crest factor will be measured accurately if its RMS level is 10dB below the maximum level for the range. Peak range is 70-114dB or 100-144dB.

Detector:

True RMS, 63dB Pulse Range

Data Output:

Requires Interface Modules connected to the microphone connector. Parallel operation or Selectable Baud: 300 600 1200 2400 4800 9600 19200.

Microphone:

8mm Shoulder-Mount, Type 2. One piece system: Cable, Connector, and Microphone

Battery:

Single 9-volt alkaline provides approximately 48 hours of operation

Memory and Clock/Calendar Battery Backup:

Lithium cell, 1 to 2 year life not including time that the 9 volt battery is installed.

Temperature:

-10° to +50°C operating; -20° to +60°C storage (battery removed)

Humidity:

0 to 95% non-condensing. Electromagnetic Negligible below 50 Oersteds at 50 to 60 Hz.

Field Effects:

Tested for RF susceptibility with < 1dB error at field strengths to 10 V/m over the frequency range of 10 MHz to 500 MHz.

Size:

5.5 x 2.8 x 1.4 inches (140 x 70 x 40 mm)

Weight:

15.5 oz. (440 grams)

Construction:

Cast aluminum housing with security cover.