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HT155 - HT157
EN - 14
5.1.2. STATISTIC ANALYSIS OPERATIONS
1. Select the “Statistic” icon and confirm with “
”. The instrument shows the following
screen relevant to the numerical display of the measured quantities
Line 1
Lines 2,8
Line 9
Fig. 11: Numerical screen of statistic analysis
Line 1
The left part shows the current date/time set on the instrument, while the
right part shows the measuring range currently used by the instrument.
Both the parameters can be programmed by the user as follows:
Date/time setting
1. Use the “ ” and “
” keys to move the flashing cursor to fields YYYY
(year), MM (month), DD (day), HH (hours), MM (minutes) SS
(seconds)
2. Use the “
” and “
” keys to select the desired program:
Configuration of the measuring range
1. Use the “ ” and “
” keys to move the flashing cursor to symbol “R”
2. Use the “
” and “
” keys to select the measuring range among the
following options: 0
90dB, 10
100dB, 20
110dB, 30
120dB, 40
130dB, 50
140dB according to the reading carried out by the
instrument. After each range modification, the reading takes
approximately 3s to become stable
Lines 2
8
The central part of the display shows:
The measure name in the first 14 characters of the second line,
defined in the programming section (see § 4.6.3). Press the “ ” key to
change the measure name
The values of the measured quantities are updated in real time
every second. The following parameters, relevant to the sound
pressure level, are considered: LAFp, LAeq1s, LAeq,T, LAE, LAFeqT,
SD, LAFmax, LAF5, LAF10, LAF50, LAF90, LAF95, LAFmin
Summary of Contents for HT155
Page 1: ... Copyright HT ITALIA 2011 Release EN 1 02 28 12 2011 HT155 HT157 User manual ...
Page 2: ......
Page 62: ...HT155 HT157 EN 60 12 APPENDIXES 12 1 APPENDIX 1 FREQUENCY WEIGHTING CHARACTERISTICS ...
Page 63: ...HT155 HT157 EN 61 12 2 APPENDIX 2 CHARACTERISTICS OF 1 3 OCTAVE BAND FILTER ...
Page 64: ...HT155 HT157 EN 62 ...
Page 65: ...HT155 HT157 EN 63 ...
Page 67: ...HT155 HT157 EN 65 12 4 APPENDIX 4 CHARACTERISTICS OF 4HZ HIGH PASS DIGITAL FILTER ...