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HT155 - HT157
EN - 15
Line 9
This line contains:
The “ ” icon, which indicates the battery charge level
The “
” icon, which indicates the measuring mode. In the same
position, the following messages can be displayed: “OVER” and
“UNDER”, to indicate that the measured values are respectively higher
and lower than the maximum and minimum range set. Operate on
Line 1 to change the measuring range value
The “
” icon allows selecting the current numerical display or the
graphic display of data
The messages “Ready” (instrument ready for recording) “Run”
(instrument recording), “Pause” (instrument paused), “Save”
(instrument saving) or “End” (end of measuring campaign
2. Press the “
” key to start recording the values of the statistic analysis with a duration
equal to the total measuring time (Tm) defined in the programming menu (see § 4.6).
The instrument displays the following screen:
Fig. 12: Statistic analysis activation
3. The “Run” message appears in the lower part of the instrument, to indicate that a
recording is currently in progress. In this condition, the indication of the measuring
range disappears and the measuring time appears, and cannot be changed while
recording
4. By pressing the “
” key while recording, the instrument is paused. The indication
“Pause” appears in the lower part of the instrument. Press the key a second time to
start recording again
5. When pressing the “
” key with paused instrument, measurement is stopped and the
result is saved in the internal memory
6. When pressing the “
” key with paused instrument, the measurement being carried
out is cancelled and the instrument waits for a new recording
7. With the flashing cursor on the “
” icon, press the “
” or “
” keys to access the
graphic display of the measure. The instrument displays the following screen:
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 ...