29
SLOW MAX (5 MINUTE TIME HISTORY)
13:37 114 114 109 114 113dB +====+====+==== 114dB
14:02 106 104 110 105 109dB +====+==== 109dB
14:27 114 116 119 106 117dB +====+====+==== 114dB
14:52 106# # # # #dB +====+= 106dB#
FAST MAX (5 MINUTE TIME HISTORY)
13:37 118 114 117 114 113dB +====+====+====+=== 118dB
14:02 106 104 110 105 109dB +====+==== 109dB
14:27 114 116 119 106 117dB +====+====+==== 114dB
14:52 106# # # # #dB +====+= 106dB#
PEAK (5 MINUTE TIME HISTORY)
13:37 124 114 117 114 113dB +====+====+====+====+==== 124dB
14:02 106 104 110 105 109dB +====+====+==== 109dB
14:27 120 116 119 106 117dB +====+====+====+====+ 120dB
14:52 106# # # # #dB +====+= 106dB#
Page 2
(STATISTICS)
% TIME STATISTICAL DISTRIBUTION
Weighting A Time Constant Slow
Total Samples 156672
Total Run 1:21:36
0 20 40 60 80 100
dB Samples % Time +----+----+----+----+----+----+----+----+----+----+
99 212 0.13% *
100 2012 1.28% *
101 4025 2.57% **
102 25009 15.96% ********
103 27113 17.30% *********
104 24666 15.74% ********
105 8602 5.49% ***
106 2804 1.78% *
107 50811 32.43% *****************
108 6298 4.01% ***
109 3111 1.98% *
110 1087 0.69% *
111 460 0.29% *
112 201 0.12% *
113 166 0.10% *
114 37 0.02% *
dB Samples % Time +----+----+----+----+----+----+----+----+----+----+
0 20 40 60 80 100
When printing time history, the last row of data may be incomplete due to the study ending prior to the last interval
printed. This will be indicated by #. In the example printout, the data was logged at 1 minute intervals, but combined into five
minute intervals for the printout. Each row contains five five minute intervals and the average for the entire 25 minutes. The #
in the last row indicates that the first value was combined from less than five logging intervals, and the average for the row , for
25 minutes, was from less than 25 minutes of complete data.
30
Figure 8
. Serial Communications Interface.
4.3 RS-232 Serial Interface
The jack on the top of the Q-300 provides direct connection to a computer's COM port with the serial communications
cable (#056-707) provided. To connect to a serial printer or similar device, a 25-pin male to male gender changer is required.
Serial Communications Interface
The Serial Communications Interface is compatible with most Computer COM Ports and most Serial Printers. It converts data
from the Q-300 into RS-232 compatible information.
The communications parameters for the ASCII data byte are the following:
1 start bit
8 data bits
1 stop bit
No parity (disabled)