HBK 4231 - Page 13

Chapter 1 – Introduction and Controls
5Sound Calibrator Type 4231
User Manual
Table 1.1 Adapters and calibration level corrections for Sound Calibrator Type 4231
Brüel & Kjær Instrument Adapter
Cal. Level
Correction
Accuracy
1/2 Microphones UC 0210 see Table 2.1
±0.2 dB
1/4 Microphones DP 0775
0.0 dB
1/8 Microphones DP 0774
Noise Dose Meter Type 4444
DP 0952
Logging Noise Dose Meter
Type 4445, 4445-E
Noise Dose Meter Type 4436
DP 0781
a
Weatherproof Microphone Unit
Type 4184
(with Protection Tube UA 1072)
UC 0210
b
+1.7 dB
±0.5 dB
Sound Intensity Probe Sets
DP 0888
c
+3.0 dB
Ear Simulator Type 4195
(low-leak, open ear sensitivity)
DP 0939
bd
+4.2 dB
Ear Simulator Type 4195
(high-leak, open ear sensitivity)
DP 0939
bd
–9.3 dB
Ear Simulator Type 4185
(open ear sensitivity)
––0.2dB
Ear Simulator Type 4157
DB 2015
e
+4.7 dB
HATS Type 4128-C
UA 1546
f
+3.1 dB
a This adapter is delivered with the noise dose meter
b The 114 dB level cannot be used
c This only performs an SPL calibration. For intensity calibrations, use Sound Intensity
Calibrator Type 3541
d Adapter DP 0939 is delivered with Type 4195
e Adapter DB 2015 is delivered with Type 4157
f Adapter UA 1456 is delivered with Type 4128-C