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HT155 - HT157
EN - 19
5. Press the “
” key to start measuring. After this operation, the instrument:
Starts measuring from the minute indicated in the system date/time and shows this
reference in column “hh:mm” with the relevant values of the quantities read in real
time
Shows the message “Run” on the display
In line 1, it shows the measuring time “Tm” instead of the indication of the set range
Disables the possibility of accessing the programming menu by pressing the “ ” key.
Stops measuring to enter the programming menu again
6. Once the measuring time has elapsed, the instrument:
Shows the indication “Wait” on the display, to indicate that it is waiting to start
(instant “00”) in the new measuring interval at the hour following the initial one (see
) (e.g.: if measurement is started at 8:49, the second measurement will be started at
9:49:00)
Shows the measuring range again instead of the measuring time “Tm”
This operation is repeated for each of the remaining 24 intervals
Fig. 16: Screen of instrument waiting to start a new recording (Wait)
CAUTION
When a measurement is in progress (Run) or waiting (Wait), the
“
”,“
”,“ ”,“
”,“
” keys are not active and it is necessary to stop or
cancel measurement to activate them again
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:
Initial line
Central lines
Final line
Fig. 17: Screen of graphic display in 24Hours mode
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 ...