Table of Contents
Advertisement
✐
Please note:
•
All specifications are for a probe with a 12 mm
spacer unless otherwise stated
•
All values are typical at 23°C, unless measurement
uncertainty or tolerance field is specified. All
uncertainty values are specified at 2σ (that is,
expanded uncertainty using a coverage factor of 2)
POWER SUPPLY
2 × 1.5 V alkaline battery, type LR6 (QB-0013)
Lifetime: 8 hours continuous
External DC Power Supply Voltage: Regulated or smoothed
10 – 14 V, max. 100 mV ripple
Power: 3.5 W
Current: 300 mA
Inrush Current: 1000 mA
Socket: 5.5 mm diameter, 2 mm pin (positive)
SIGNAL LEVELS OBTAINED IN INTENSITY CALIBRATOR
Reference conditions according to IEC 60942
Ambient Static Pressure: 101.3 kPa
Ambient Temperature: 23 °C
Relative Humidity: 50%
INDIVIDUAL CALIBRATION ACCURACY
Sound pressure level for sine output 251.2 Hz ± 0.1% at
reference conditions: 94 ± 0.08 dB re 20 μPa
Nominal Sound Pressure Level: 94 ± 0.2 dB re 20 μPa
Stabilisation Time: 5 s
Chapter 6
Temperature Coefficient: < ± 0.002 dB/°C
Humidity Coefficient: Negligible
Total Harmonic Distortion: <2%
SOUND PRESSURE LEVELS MEASURED WITH SPACER
Pink Noise: all levels measured in 1/3-octaves:
251.2 Hz: 75 dB ±3.0 dB SPL
20 Hz to 3.15 kHz: ± 3.0 dB re level at 251.2 Hz
Linear: 94 dB ± 3.0 dB SPL
Fulfils IEC 60942, 1997 Class 1
SOUND PRESSURE LEVEL MEASURED WITHOUT SPACER
20 Hz to 6.3 kHz: ± 3.0 dB re level at 251.2 Hz
PRESSURE-RESIDUAL INTENSITY INDEX OF SOUND FIELD
Pink Noise: all levels measured in 1/3-octaves:
Fulfils IEC 61043, 1993 Class 1
Measured with 12 mm Spacer: >24 dB from 40 Hz to 3 kHz
Measured without Spacer: >24 dB from 40 Hz to 6.3 kHz
DIMENSIONS AND WEIGHT (CASE)
Height: 6 cm (2.4")
Width: 5.5 cm (2.17")
Depth: 17 cm (6.7")
Weight: 730 g (1 lb 10 oz)
ELECTRICAL SPECIFICATIONS
AC Input Sensitivity: 15.4 Pa/V with spacer
Max Input Voltage: 70 mV RMS
Input Impedance: >18 kΩ (f <10 kHz)
Specifications
27
Advertisement
Table of Contents
