10. Technical Specifications and Limits for E-A-RTONE®3A

Impedance:

10 Ohm, 50 Ohm or 300 Ohm

1 kHz Sensitivity:

102.5 dB SPL in DB-0138 (HA-2) coupler

 

@ 0.1 Volt rms. (10 V)

 

@ 0.2 Volt rms. (50 V)

 

103.5 dB SPL in DB-0138 (HA-2) coupler

 

@ 0.49 Volt rms. (300 V)

Limits:

± 3 dB

 

Distortion:

< 3% measured @ 500 Hz, 118.5 dB SPL

Maximum output:

Meets or exceeds 110 dBHL at standard

 

audiometric frequencies between

 

500 and 4000 Hz

Safe operating limits:

Max. continuous sine wave drive:

 

2.5 Volt rms.

(10 V)

 

5.0 Volt rms.

(50 V)

 

13.75 Volt rms. (300 V)

Max. Peak voltage for 1-% duty cycle:

10 Volts (10 Ohm)

20 Volts (50 Ohm)

55 Volts (300 Ohm)

Accessories supplied:

50 disposable E-A-RLINK®3A eartips, 50 disposable E-A-RLINK®3B eartips, 4 disposable E-A-RLINK®3C eartips and 213 cm cord (7 feet) with left and right 1/4” mono color-coded phono-plugs.

Data supplied: 2cc-coupler frequency response chart on individual units.

11.Reference Equivalent Threshold Sound Pressure Levels (RETSPLS) According to ANSI S3.6-1996 and ISO-389-2:1994

ANSI S3.6 and ISO 389-2 Reference Thresholds

 

Sound Pressure Levels in dB re. 20 µPa

 

Frequency in Hz

Coupler 2cc DB-0138

Coupler IEC 711

Coupler 2cc HA-1

125

26.0

28.0

26.5

250

14.0

17.5

14.5

500

5.5

9.5

6.0

750

2.0

6.0

2.0

1000

0.0

5.5

0.0

1500

2.0

9.5

0.0

2000

3.0

11.5

2.5

3000

3.5

13.0

2.5

4000

5.5

15.0

0.0

6000

2.0

16.0

-2.5

8000

0.0

15.5

-3.5

 

 

 

6

Page 7
Image 7
AOSafety E-A-RTONE 3A Technical Specifications and Limits for E-A-RTONE3A, Ansi S3.6 and ISO 389-2 Reference Thresholds

E-A-RTONE 3A specifications

The AOSafety E-A-RTONE 3A is an advanced respiratory protective device designed for individuals working in environments where airborne hazards are present. Renowned for its effectiveness and comfort, the E-A-RTONE 3A is a favored choice among professionals in various industries, including construction, manufacturing, and chemical handling.

One of the standout features of the AOSafety E-A-RTONE 3A is its high filtration efficiency, which is crucial for providing reliable protection against particulate matter, dust, and other harmful airborne substances. The respirator is equipped with P100 filters that capture at least 99.97% of airborne particles, making it suitable for use in environments with higher levels of hazardous dust and aerosols.

The design of the E-A-RTONE 3A emphasizes user comfort, allowing for prolonged wear without discomfort. The adjustable head straps ensure a secure fit, while the soft, foam-rubber face seal conforms to the contours of the wearer’s face, reducing leakage and providing a tight seal against contaminants. This ergonomic design minimizes fatigue, enabling users to maintain focus on their tasks without the distraction of an uncomfortable respirator.

The E-A-RTONE 3A is also designed for versatility. It can accommodate various filter and cartridge types, depending on the specific requirements of the work environment. This adaptability makes it a go-to choice for users who may encounter different types of hazards or who work across various settings.

In addition to its protective features, the AOSafety E-A-RTONE 3A boasts an easy-to-use exhalation valve. This mechanism minimizes heat and moisture buildup inside the respirator, enhancing overall comfort during extended use. The valve facilitates exhalation while preventing the ingress of contaminants, thereby maintaining a clear respiratory path.

Moreover, the lightweight construction of the E-A-RTONE 3A ensures that it does not add unnecessary strain on the wearer. It’s designed to facilitate ease of movement, which is essential in active work environments. Users can wear it alongside safety goggles and other personal protective equipment, making it a versatile asset in any safety attire.

Overall, the AOSafety E-A-RTONE 3A combines high-efficiency filtration, comfort, and versatility, making it an excellent choice for anyone seeking reliable respiratory protection in potentially hazardous environments. Whether for professional use or DIY projects, this respirator stands out for its commitment to safety and user satisfaction.