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HD2024

Series: HD2024C – Class 1 Sound Level Calibrator Brand: Delta OHM S.R.L.

Acoustic calibrator

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Supplied with: 9 V alkaline battery and instruction manual.

Specifications

Brand

Coupling Cavity

  • For standard 1/2" (12.7 ± 0.03 mm) microphones according to IEC 61094-1 and IEC 61094-4

Optional Adapter

  • HD2020AD4 for 1/4" microphones

Frequency

  • 1000 Hz

Frequency Tolerance

  • 1 % in the range -10 ÷ +50° C and 10 ÷ 90 % RH

Sound Pressure Level

  • 94.0 dB ± 0.3 dB at 1 kHz (referred to 101.3 kPa, 23° C ± 3° C and 65 % RH)

Reference Conditions

  • 23° C, 50 % RH, 101.3 kPa, microphone capsule with 10 mm³ equivalent volume

Stabilization Time

  • 10 s

Total Distortion

  • < 1 %

Temperature and Humidity Influence

  • < 0.3 dB in the range 0 to 40° C and 10 to 90 % RH

Static Pressure Influence

  • < 0.1 dB in the range 65…108 kPa

Short-Term Stability

  • ± 0.05 dB

Stability After 1 Year with Normal Use

  • ± 0.15 dB

Operating Conditions

  • -10 ÷ +50° C / ≤ 90 % RH

Storage Temperature

  • -25 ÷ +70° C

Microphone Equivalent Volume

  • From 5 to 250 mm³

Power Supply

  • 9 V alkaline battery IEC type 6LR61
  • 9 V rechargeable batteries can also be used

Battery Autonomy

  • 48 hours of continuous use with good quality alkaline batteries

Case Material

  • ABS

Dimensions

  • 53 x 43 x 83 mm

Weight

  • 160 g

Protection Degree

  • IP 64

Effects of Electromagnetic Fields

  • < 0.3 dB

Documentation

Manual

View Product Series

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