Instruction Manual

Sound Level Meter Types 2245 – Instruction Manual Page 84 of 110
Table A.8 Directional response for the sound level meter, measured in a plane
parallel to the display and along the microphone’s axis, 3.15 KHz - 10 KHz
3.15 KHz 3.55 KHz 4 KHz 4.5 KHz 5 KHz 5.6 KHz 6.3 KHz 7.1 KHz 8 KHz 8.5 KHz 9 KHz 9.5 KHz 10 KHz
0° -0.01 -0.01 -0.01 -0.01 -0.01 -0.02 -0.01 -0.02 -0.02 -0.02 -0.02 -0.02 -0.02
5° 0.00 -0.02 -0.01 -0.01 -0.02 -0.01 -0.02 -0.01 -0.02 -0.03 -0.05 -0.03 -0.03
10° 0.01 -0.06 -0.02 0.01 -0.03 -0.03 -0.05 -0.04 -0.09 -0.09 -0.15 -0.09 -0.09
15° 0.01 -0.14 -0.02 0.01 -0.08 -0.08 -0.13 -0.09 -0.15 -0.16 -0.25 -0.14 -0.16
20° 0.02 -0.22 -0.01 -0.01 -0.16 -0.18 -0.25 -0.18 -0.25 -0.29 -0.35 -0.24 -0.31
25° -0.01 -0.30 0.00 -0.07 -0.27 -0.30 -0.40 -0.29 -0.39 -0.44 -0.43 -0.45 -0.54
30° -0.08 -0.36 -0.01 -0.21 -0.41 -0.48 -0.57 -0.47 -0.58 -0.62 -0.58 -0.78 -0.73
35° -0.19 -0.35 -0.06 -0.36 -0.48 -0.62 -0.67 -0.64 -0.69 -0.83 -0.77 -1.00 -0.93
40° -0.34 -0.32 -0.21 -0.51 -0.52 -0.76 -0.75 -0.89 -0.87 -1.12 -1.00 -1.17 -1.31
45° -0.47 -0.31 -0.41 -0.59 -0.57 -0.84 -0.85 -1.08 -1.11 -1.28 -1.31 -1.44 -1.67
50° -0.51 -0.40 -0.51 -0.61 -0.70 -0.95 -0.98 -1.23 -1.34 -1.53 -1.67 -1.69 -1.85
55° -0.47 -0.56 -0.48 -0.70 -0.82 -1.04 -1.40 -1.45 -1.58 -1.72 -1.80 -2.10 -2.22
60° -0.42 -0.75 -0.51 -0.94 -1.10 -1.16 -1.44 -1.64 -2.11 -2.17 -2.23 -2.46 -2.67
65° -0.57 -0.83 -0.58 -0.93 -1.07 -1.37 -1.72 -1.57 -1.91 -2.43 -2.43 -2.65 -2.91
70° -0.81 -0.74 -0.80 -1.07 -1.37 -1.49 -1.48 -2.64 -2.25 -2.34 -2.64 -2.84 -3.09
75° -0.95 -0.84 -0.91 -1.10 -1.29 -1.68 -2.18 -1.95 -2.94 -2.98 -2.88 -3.29 -3.55
80° -0.87 -1.09 -0.90 -1.31 -1.56 -1.97 -1.99 -2.09 -3.19 -3.53 -3.45 -3.53 -3.94
85° -0.78 -1.20 -1.03 -1.37 -1.55 -1.78 -2.20 -2.95 -2.61 -3.81 -3.92 -3.91 -4.05
90° -0.83 -1.08 -1.30 -1.48 -1.74 -2.18 -2.59 -3.15 -2.87 -3.53 -4.25 -4.26 -4.36
95° -1.02 -1.09 -1.24 -1.72 -1.84 -2.14 -2.58 -2.67 -3.25 -3.67 -4.42 -4.38 -4.55
100° -1.26 -1.21 -1.18 -1.77 -2.04 -2.31 -2.48 -2.78 -3.97 -3.78 -4.65 -4.57 -4.75
105° -1.10 -1.46 -1.29 -1.65 -2.22 -2.62 -2.91 -3.36 -3.99 -3.80 -4.92 -4.71 -5.28
110° -0.85 -1.34 -1.49 -1.77 -2.01 -2.59 -3.19 -3.62 -4.38 -4.13 -4.70 -4.84 -5.76
115° -0.91 -1.02 -1.34 -1.89 -2.14 -2.54 -3.00 -3.71 -4.26 -4.23 -4.99 -5.05 -5.76
120° -1.02 -1.14 -1.05 -1.68 -2.21 -2.68 -3.11 -3.49 -4.46 -4.98 -5.09 -5.16 -5.86
125° -0.99 -1.21 -1.23 -1.50 -1.92 -2.60 -3.11 -3.96 -4.17 -4.75 -5.14 -5.87 -6.10
130° -0.74 -1.12 -1.26 -1.63 -1.86 -2.27 -2.91 -3.47 -4.45 -5.11 -5.24 -5.62 -5.84
135° -0.48 -0.77 -1.00 -1.63 -1.96 -2.19 -2.65 -3.00 -4.02 -4.25 -4.81 -5.84 -6.11
140° -0.59 -0.65 -0.64 -1.14 -1.71 -2.39 -2.57 -3.07 -3.59 -4.00 -4.55 -5.05 -5.23
145° -0.93 -0.97 -0.80 -1.04 -1.23 -1.72 -2.55 -3.16 -3.21 -3.87 -4.29 -4.74 -5.23
150° -1.29 -1.37 -1.23 -1.48 -1.59 -1.88 -1.94 -2.30 -3.83 -4.05 -4.13 -4.31 -4.74
155° -1.56 -1.76 -1.74 -1.94 -2.08 -2.30 -2.58 -2.91 -2.80 -3.41 -3.73 -4.38 -4.76
160° -1.54 -1.87 -2.08 -2.52 -2.84 -2.90 -2.97 -3.31 -4.02 -4.16 -4.43 -4.71 -5.33
165° -1.20 -1.54 -1.79 -2.46 -3.00 -3.57 -4.28 -4.71 -4.56 -4.98 -5.12 -5.47 -5.56
170° -0.81 -1.06 -1.18 -1.76 -2.14 -2.83 -3.73 -4.59 -5.52 -5.91 -6.29 -7.02 -7.34
175° -0.53 -0.70 -0.71 -1.15 -1.34 -1.88 -2.46 -2.98 -4.09 -4.39 -4.72 -5.27 -5.67
180° -0.44 -0.59 -0.57 -0.98 -1.11 -1.60 -2.10 -2.49 -3.36 -3.69 -3.98 -4.43 -4.83
185° -0.53 -0.72 -0.74 -1.20 -1.41 -1.97 -2.62 -3.06 -3.97 -4.39 -4.75 -5.36 -5.96
190° -0.82 -1.09 -1.24 -1.84 -2.26 -3.01 -3.92 -4.50 -5.44 -6.00 -6.42 -7.36 -7.84
195° -1.25 -1.62 -1.93 -2.58 -3.18 -3.75 -4.27 -4.58 -4.81 -5.22 -5.45 -5.70 -5.73
200° -1.61 -1.96 -2.21 -2.59 -2.90 -2.94 -2.88 -3.19 -3.98 -4.26 -4.50 -4.91 -5.48
205° -1.61 -1.80 -1.76 -1.91 -2.01 -2.24 -2.57 -2.96 -3.05 -3.54 -3.86 -4.33 -4.69
210° -1.30 -1.35 -1.19 -1.40 -1.55 -1.79 -1.94 -2.41 -3.73 -4.00 -3.97 -4.26 -4.60
215° -0.94 -0.93 -0.76 -1.00 -1.25 -1.78 -2.63 -3.08 -3.10 -3.75 -4.35 -4.81 -5.27
220° -0.55 -0.59 -0.58 -1.18 -1.76 -2.39 -2.44 -3.03 -3.48 -4.02 -4.49 -4.78 -5.17
225° -0.40 -0.74 -1.02 -1.63 -1.94 -2.16 -2.75 -3.02 -3.90 -4.13 -4.73 -5.94 -6.24
230° -0.70 -1.13 -1.25 -1.58 -1.81 -2.26 -2.84 -3.32 -4.61 -4.99 -5.01 -5.49 -5.83
235° -1.00 -1.21 -1.21 -1.52 -1.99 -2.68 -3.09 -3.89 -4.19 -4.52 -4.97 -5.93 -5.98
240° -0.97 -1.12 -1.03 -1.71 -2.16 -2.61 -3.12 -3.48 -4.27 -4.85 -4.78 -5.07 -5.67
245° -0.89 -1.00 -1.38 -1.86 -2.12 -2.52 -2.88 -3.55 -3.85 -4.15 -4.73 -4.85 -5.46
250° -0.81 -1.33 -1.46 -1.69 -1.94 -2.53 -3.04 -3.18 -4.02 -4.04 -4.43 -4.74 -5.45
255° -1.09 -1.43 -1.23 -1.61 -2.18 -2.51 -2.77 -3.23 -3.78 -3.78 -4.67 -4.58 -4.95
260° -1.24 -1.11 -1.15 -1.74 -1.94 -2.20 -2.45 -2.72 -3.87 -3.64 -4.37 -4.39 -4.48
265° -0.92 -1.04 -1.18 -1.60 -1.75 -2.02 -2.35 -2.56 -3.19 -3.48 -4.12 -4.21 -4.34
270° -0.76 -1.04 -1.26 -1.40 -1.63 -2.07 -2.43 -2.78 -2.82 -3.28 -4.02 -4.12 -4.12
275° -0.76 -1.15 -0.93 -1.32 -1.51 -1.71 -2.17 -2.79 -2.47 -3.57 -3.70 -3.72 -3.82
280° -0.83 -1.03 -0.84 -1.19 -1.42 -1.81 -1.79 -2.02 -2.94 -3.27 -3.24 -3.30 -3.69
285° -0.91 -0.75 -0.86 -1.03 -1.23 -1.61 -2.01 -1.80 -2.71 -2.80 -2.69 -3.09 -3.26
290° -0.75 -0.69 -0.71 -0.97 -1.24 -1.34 -1.40 -2.40 -2.14 -2.20 -2.48 -2.65 -2.83
295° -0.48 -0.77 -0.50 -0.87 -0.99 -1.28 -1.57 -1.44 -1.75 -2.27 -2.25 -2.44 -2.68
300° -0.36 -0.70 -0.45 -0.86 -1.02 -1.06 -1.36 -1.50 -2.01 -2.05 -2.11 -2.35 -2.46
305° -0.41 -0.48 -0.43 -0.60 -0.71 -0.95 -1.23 -1.30 -1.43 -1.58 -1.65 -1.91 -1.98
310° -0.45 -0.32 -0.45 -0.53 -0.61 -0.85 -0.83 -1.09 -1.24 -1.40 -1.55 -1.56 -1.66
315° -0.42 -0.25 -0.33 -0.55 -0.49 -0.76 -0.74 -0.95 -1.01 -1.20 -1.19 -1.29 -1.49
320° -0.29 -0.26 -0.12 -0.45 -0.45 -0.68 -0.66 -0.77 -0.78 -1.02 -0.89 -1.04 -1.10
325° -0.14 -0.30 0.01 -0.29 -0.41 -0.52 -0.57 -0.50 -0.61 -0.72 -0.64 -0.88 -0.75
330° -0.02 -0.30 0.05 -0.12 -0.33 -0.37 -0.47 -0.38 -0.50 -0.54 -0.46 -0.64 -0.59
335° 0.03 -0.25 0.03 -0.01 -0.21 -0.21 -0.31 -0.24 -0.32 -0.38 -0.36 -0.34 -0.40
340° 0.05 -0.17 0.01 0.05 -0.11 -0.09 -0.16 -0.11 -0.17 -0.21 -0.29 -0.15 -0.20
345° 0.05 -0.09 0.00 0.05 -0.03 -0.01 -0.04 -0.02 -0.07 -0.08 -0.18 -0.06 -0.08
350° 0.02 -0.04 -0.01 0.02 -0.02 0.00 -0.01 0.00 -0.03 -0.02 -0.08 -0.02 -0.03
355° 0.00 0.00 0.00 0.01 0.01 0.02 0.01 0.01 0.00 0.00 -0.01 0.00 0.00
Nominal Frequency
Angel