Instruction Manual

Sound Level Meter Types 2245 – Instruction Manual Page 87 of 110
Table A.11 Directional response for the sound level meter, measured in a plane
perpendicular 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 0.00 0.00 -0.01 -0.01 -0.01 0.00 -0.01 0.00 -0.01 -0.01 -0.01 -0.01
5° 0.01 -0.01 0.00 0.00 0.00 0.02 0.01 0.00 -0.01 0.02 -0.04 0.00 0.00
10° 0.02 -0.04 -0.01 0.01 -0.02 0.01 -0.02 0.00 -0.06 -0.02 -0.15 -0.03 -0.04
15° 0.03 -0.10 -0.02 0.03 -0.05 -0.03 -0.10 -0.04 -0.10 -0.09 -0.25 -0.05 -0.09
20° 0.03 -0.18 -0.02 0.01 -0.13 -0.15 -0.26 -0.14 -0.16 -0.27 -0.32 -0.16 -0.26
25° 0.01 -0.26 0.01 -0.03 -0.25 -0.33 -0.48 -0.31 -0.24 -0.47 -0.31 -0.40 -0.47
30° -0.06 -0.33 0.01 -0.17 -0.41 -0.56 -0.67 -0.58 -0.47 -0.65 -0.47 -0.77 -0.66
35° -0.15 -0.33 -0.02 -0.34 -0.47 -0.61 -0.58 -0.65 -0.70 -0.74 -0.81 -0.84 -0.83
40° -0.29 -0.32 -0.17 -0.51 -0.47 -0.60 -0.51 -0.67 -0.84 -0.95 -1.06 -0.93 -1.30
45° -0.37 -0.30 -0.35 -0.51 -0.43 -0.65 -0.80 -0.96 -0.98 -1.22 -1.23 -1.50 -1.46
50° -0.40 -0.39 -0.46 -0.47 -0.67 -0.98 -1.28 -1.34 -1.35 -1.41 -1.56 -1.67 -1.67
55° -0.37 -0.53 -0.40 -0.56 -0.92 -1.10 -1.30 -1.21 -1.49 -1.62 -1.69 -1.94 -2.29
60° -0.37 -0.71 -0.42 -0.97 -1.09 -0.96 -1.14 -1.48 -1.92 -2.18 -2.15 -2.35 -2.48
65° -0.56 -0.75 -0.53 -0.98 -0.85 -1.40 -1.77 -1.99 -1.82 -2.18 -2.32 -2.50 -2.78
70° -0.84 -0.65 -0.83 -0.92 -1.28 -1.58 -1.37 -2.24 -2.06 -2.31 -2.52 -2.72 -3.02
75° -0.93 -0.79 -0.93 -0.95 -1.36 -1.44 -2.13 -1.86 -3.29 -2.82 -2.87 -3.23 -3.41
80° -0.73 -1.10 -0.80 -1.40 -1.30 -1.86 -2.10 -1.99 -2.63 -3.77 -3.44 -3.45 -3.97
85° -0.57 -1.16 -0.95 -1.42 -1.46 -1.82 -1.86 -3.17 -2.58 -3.28 -4.13 -4.05 -3.94
90° -0.70 -0.87 -1.32 -1.29 -2.00 -1.88 -2.83 -2.93 -2.65 -3.50 -3.99 -4.31 -4.49
95° -1.06 -0.87 -1.09 -1.65 -1.68 -2.35 -2.22 -2.40 -3.63 -3.29 -4.42 -4.42 -4.32
100° -1.38 -1.23 -0.85 -1.73 -1.92 -2.33 -2.57 -2.90 -3.64 -3.73 -4.61 -4.58 -4.68
105° -1.09 -1.66 -1.27 -1.28 -2.25 -2.37 -3.18 -3.30 -4.38 -3.71 -4.59 -4.92 -4.96
110° -0.70 -1.37 -1.80 -1.71 -1.55 -2.64 -2.73 -4.08 -3.88 -3.91 -4.94 -4.67 -5.43
115° -0.88 -0.90 -1.45 -2.35 -2.20 -2.07 -3.15 -3.02 -4.68 -4.67 -4.64 -4.90 -5.91
120° -1.14 -1.12 -0.85 -1.70 -2.75 -2.81 -2.44 -3.73 -3.67 -4.44 -5.42 -5.60 -5.81
125° -1.09 -1.39 -1.24 -1.23 -1.73 -3.15 -3.69 -3.16 -4.22 -4.82 -4.68 -5.08 -6.00
130° -0.65 -1.19 -1.49 -1.79 -1.64 -1.95 -3.28 -4.71 -3.92 -4.20 -4.86 -5.71 -5.66
135° -0.26 -0.60 -1.00 -1.90 -2.39 -2.33 -2.21 -2.72 -5.34 -5.35 -5.30 -5.40 -5.59
140° -0.37 -0.37 -0.34 -0.93 -1.77 -2.77 -3.09 -3.09 -2.85 -3.71 -4.90 -6.12 -6.40
145° -0.83 -0.78 -0.50 -0.61 -0.76 -1.32 -2.59 -4.00 -3.95 -4.17 -4.07 -4.05 -4.67
150° -1.29 -1.34 -1.12 -1.22 -1.18 -1.24 -1.17 -1.52 -3.89 -4.47 -4.94 -5.30 -5.46
155° -1.63 -1.82 -1.80 -1.98 -2.08 -2.19 -2.22 -1.98 -1.64 -2.24 -2.67 -3.43 -4.04
160° -1.61 -1.94 -2.19 -2.68 -3.06 -3.12 -3.17 -3.47 -3.68 -3.60 -3.66 -3.69 -4.25
165° -1.26 -1.58 -1.87 -2.59 -3.20 -3.79 -4.61 -5.19 -5.02 -5.36 -5.46 -5.63 -5.75
170° -0.83 -1.05 -1.19 -1.78 -2.19 -2.90 -3.87 -4.82 -5.77 -6.21 -6.60 -7.42 -7.63
175° -0.53 -0.69 -0.70 -1.15 -1.35 -1.89 -2.51 -3.05 -4.13 -4.45 -4.77 -5.32 -5.64
180° -0.42 -0.55 -0.52 -0.92 -1.05 -1.53 -2.05 -2.44 -3.25 -3.56 -3.82 -4.22 -4.54
185° -0.50 -0.67 -0.69 -1.13 -1.32 -1.89 -2.56 -3.01 -3.83 -4.25 -4.59 -5.19 -5.70
190° -0.77 -1.02 -1.17 -1.75 -2.17 -2.93 -3.94 -4.64 -5.61 -6.30 -6.86 -8.06 -8.67
195° -1.18 -1.56 -1.88 -2.57 -3.23 -3.92 -4.68 -5.26 -5.67 -6.14 -6.40 -6.53 -6.43
200° -1.61 -2.04 -2.37 -2.87 -3.31 -3.42 -3.36 -3.67 -4.24 -4.23 -4.07 -4.05 -4.33
205° -1.72 -1.99 -2.01 -2.20 -2.25 -2.33 -2.40 -2.43 -2.04 -2.29 -2.56 -3.05 -3.75
210° -1.44 -1.49 -1.27 -1.36 -1.30 -1.31 -1.28 -1.59 -3.28 -4.15 -4.85 -5.65 -5.90
215° -0.97 -0.87 -0.55 -0.64 -0.72 -1.33 -2.65 -4.02 -4.21 -4.45 -4.46 -4.23 -4.58
220° -0.43 -0.35 -0.24 -0.88 -1.69 -2.88 -3.14 -3.17 -2.82 -3.38 -4.36 -5.68 -6.39
225° -0.19 -0.52 -0.94 -1.92 -2.55 -2.42 -2.34 -2.59 -4.91 -5.42 -5.34 -5.40 -5.46
230° -0.58 -1.22 -1.60 -1.87 -1.73 -1.85 -3.02 -4.45 -4.28 -4.13 -4.56 -5.88 -6.05
235° -1.14 -1.48 -1.31 -1.22 -1.66 -3.14 -3.60 -3.21 -4.38 -5.11 -4.90 -5.11 -5.67
240° -1.22 -1.16 -0.77 -1.59 -2.70 -2.79 -2.57 -3.93 -3.97 -4.17 -4.92 -5.54 -5.68
245° -0.95 -0.79 -1.28 -2.37 -2.28 -2.11 -3.31 -3.18 -4.20 -4.65 -4.76 -5.01 -5.84
250° -0.64 -1.23 -1.88 -1.79 -1.66 -2.89 -2.73 -3.54 -4.05 -4.01 -4.94 -4.65 -5.49
255° -0.96 -1.71 -1.36 -1.37 -2.40 -2.28 -2.99 -3.34 -4.19 -3.90 -4.55 -4.67 -4.98
260° -1.40 -1.31 -0.95 -1.86 -1.82 -2.22 -2.73 -2.90 -3.56 -3.76 -4.59 -4.38 -4.68
265° -1.17 -0.98 -1.17 -1.68 -1.59 -2.53 -2.32 -2.64 -3.40 -3.58 -4.35 -4.12 -4.37
270° -0.81 -0.97 -1.41 -1.16 -2.12 -1.92 -2.78 -2.93 -2.77 -3.66 -3.99 -4.11 -4.09
275° -0.68 -1.23 -0.85 -1.42 -1.61 -1.88 -1.88 -3.04 -2.77 -3.50 -3.84 -3.72 -3.93
280° -0.79 -1.12 -0.71 -1.58 -1.26 -1.93 -2.16 -1.94 -2.93 -3.49 -3.28 -3.38 -3.61
285° -0.95 -0.70 -1.02 -1.08 -1.42 -1.40 -2.17 -2.08 -3.00 -2.79 -2.78 -3.02 -3.28
290° -0.82 -0.61 -1.00 -0.88 -1.38 -1.66 -1.38 -2.24 -2.12 -2.31 -2.47 -2.77 -3.01
295° -0.50 -0.80 -0.58 -0.96 -0.86 -1.45 -1.78 -1.70 -1.96 -2.26 -2.52 -2.64 -2.66
300° -0.32 -0.84 -0.35 -1.02 -1.08 -0.99 -1.16 -1.67 -1.92 -2.23 -2.19 -2.25 -2.54
305° -0.40 -0.63 -0.37 -0.59 -0.98 -1.08 -1.25 -1.30 -1.55 -1.67 -1.67 -1.96 -2.11
310° -0.51 -0.40 -0.52 -0.44 -0.72 -1.05 -1.22 -1.21 -1.43 -1.50 -1.49 -1.69 -1.65
315° -0.49 -0.26 -0.43 -0.48 -0.40 -0.65 -0.93 -0.88 -1.00 -1.17 -1.29 -1.38 -1.43
320° -0.37 -0.26 -0.20 -0.52 -0.39 -0.48 -0.60 -0.74 -0.86 -0.96 -1.06 -1.02 -1.21
325° -0.21 -0.32 -0.02 -0.42 -0.46 -0.48 -0.52 -0.68 -0.69 -0.79 -0.81 -0.81 -0.88
330° -0.07 -0.33 0.05 -0.23 -0.42 -0.48 -0.48 -0.53 -0.49 -0.59 -0.56 -0.67 -0.65
335° 0.00 -0.29 0.03 -0.08 -0.30 -0.39 -0.37 -0.33 -0.36 -0.41 -0.38 -0.47 -0.41
340° 0.04 -0.19 0.02 0.02 -0.14 -0.22 -0.20 -0.13 -0.22 -0.22 -0.22 -0.25 -0.16
345° 0.03 -0.12 -0.01 0.03 -0.06 -0.11 -0.10 -0.04 -0.14 -0.14 -0.14 -0.14 -0.09
350° 0.01 -0.05 0.00 0.02 -0.02 -0.04 -0.04 -0.01 -0.06 -0.06 -0.06 -0.05 -0.04
355° 0.00 0.00 0.01 0.02 0.00 -0.01 -0.01 0.01 0.00 -0.01 0.01 0.01 0.01
Nominal Frequency
Angel