background image

 

Figure 4.26 

 

If your IT-08 functions properly, USB-port cable is connected correctly, and the 

software to be downloaded is compatible with the Meter hardware, the process of program 
download onto your Meter will automatically start, and its progress will be indicated on the 
screen. After the download is over, the pop-up window will announce that the task has 
been successfully completed. The IT-081 will reboot and start operating similar to when it 
has been powered up. 

CAUTION

 Do not interrupt the loading process. This can lead to malfunction of the Meter. 

But, if this does occur, repeat the process of program update. 

4.7.3. Updating Software from Removable Module 

The device features the possibility of saving the firmware into the memory of the 

Removable Module. The firmware is saved to the Removable Module automatically in the 
process of the Base Unit firmware updating from PC. Further on, when another 
Removable Module is plugged into the Base Unit, the device will automatically load the 
firmware from this Module in case the device has been operating with the Module of 
another type or if the versions of the Removable Module applications are different. The 
device will indicate the firmware loading process from the Removable Module by 
messages on the screen. After the firmware loading is finished, the device switches to the 
normal operating mode. 

4.8. Battery Operation 

The IT-081 is powered by a built-in power source with 6 NiMH AA batteries of 

14.5x49.5 mm dimensions and no less than 2100 mAh capacity. 

To determine the residual capacity of the batteries, use the Self-test program of the 

Meter (see Section 4.5.1).  When the effective charge level of the battery drops to a critical 
point, you will hear the warning beep. This signifies that the time of operation until total 
battery discharge is approximately 5 minutes. 

To charge the batteries in an appropriate charger, remove IT-081 from its Carrying 

Case. Make sure the Meter is switched off. Open the cover of the battery compartment. 
Carefully remove the batteries. The batteries must be charged in a charger, which is 
appropriate to the type of the batteries you are using.  

When installing the batteries into the battery compartment, make sure that the 

polarity of batteries is correct. Close the battery compartment. 

29 

Содержание IT-081

Страница 1: ...I 081 TV LEVEL METER OPERATING MANUAL...

Страница 2: ...Revision 1 1 of April 4 2016 2...

Страница 3: ...can Measurement Mode 15 4 4 Data Logger Function 16 4 4 1 General Information 16 4 4 2 Channel Plans 17 4 4 3 Limit Plans 19 4 4 4 Channel Data Logger 20 4 4 5 Spectrum Data Logger 22 4 4 6 Memory Man...

Страница 4: ...Resolution 0 11 m IT 086 Optical Power Meter MC 086 module plugged in measuring at 50 dBm to 20 dBm range and wavelengths 1310 and 1550 nm IT 087 DVB C Signal Analyzer MC 087 module plugged in 45 to...

Страница 5: ...you start to operate the Meter WARNING Only trained service personnel aware of the hazards involved should perform repair on the Meter CAUTION Tuning the Meter and replacement of the components that...

Страница 6: ...tegory CAT II Rated operating conditions a ambient temperature from 10 to 40 b relative air humidity not greater than 90 at 25 temperature c atmospheric pressure 84 106 kPa 630 795 mm Hg 2 5 Package C...

Страница 7: ...0 1 dB Accuracy within 30 126 dB V level range 1 5 dB Accuracy at operating temperature 2 2 dB Measurement channel passband for 3 dB level 230 60 kHz Frequency indication 6 characters on LCD Channel...

Страница 8: ...level V A and C N ratios 2 7 2 Block Diagram The block diagram of IT 081 is shown in figure 2 3 Figure 2 3 After the Low Pass Filter LPF the input signal if necessary is reduced by the two Attenuators...

Страница 9: ...has a USB port and an external power source connector The Removable Module connector is located on the back panel The Removable Module has a 75 Ohm input F connector and the connector for connection...

Страница 10: ...able Module software version is other than the software installed the IT 081 will start the program installation process automatically once the Meter is switched on The loading process is indicated by...

Страница 11: ...nit dBuV Press MENU ENTER Then enter Ch plan mode Select the first row All channels using keys and press F4 Select Press MENU ENTER key again In the main menu select the tab with the icons of measurem...

Страница 12: ...channel plan name current time and the battery remaining indicator If the channel plan is not selected the line will show All channels title and in this case the channel modulation type is determined...

Страница 13: ...owing of the signal level value after averaging Off Averaging off x4 Averaging over last 4 measurement reports x8 Averaging over last 8 measurement reports 4 3 2 Level Measurement Mode In this mode th...

Страница 14: ...third one is the point 1 125 MHz shifted down from the first one The measured V A and C N ratio will be indicated on the screen While operating by channel plan the IT 081 offers the capability of sel...

Страница 15: ...t this sweep press AUX key to open the menu with additional set of functions and then press F2 Run key If additional trace showing option is turned on Min or Max values are selected for Hold level par...

Страница 16: ...ger The data logger memory is common for all the directories and is of a dynamic type The memory capacity allows to save up to 32 channel plans up to 8 limit plans up to 130 channel data logger pages...

Страница 17: ...t the channel plan Figure 4 10 Press F1 to open the pop up menu with the list of available commands 1 Edit Viewing and editing of the selected channel plan 2 Rename Editing of the channel plan name 3...

Страница 18: ...annel name 5 Bandwidth channel frequency bandwidth The available range is from 5 00 up to 8 00 MHz with 250 kHz step 6 Noise frequency frequency shift for C N ratio measurement The available range is...

Страница 19: ...it plan Also you can add a new limit plan by pressing F2 Add 4 4 3 2 Editing Limit Plan The screen view of the limit plan is shown in the figure 4 14 Figure 4 14 The table contains the TV channel para...

Страница 20: ...eof Channel Data Logger allows viewing the measurement results and errors in different parameters and uploading the data onto your PC for further processing and report preparation List of Channel Data...

Страница 21: ...ify the errors after the limit test open the table of the detailed channel data F1 key The test parameter table will appear on the screen figure 4 17 Figure 4 17 In this table you can see the paramete...

Страница 22: ...igure 4 19 The screens show the list of spectrum data logger pages For each page the following information is presented status page name date and time of updating and frequency scanning range Press F1...

Страница 23: ...ory can contain different types of files For IT 081 Meter these are channel plan list limit plan list channel data log and spectrum data log Different configurations of IT 08 may have other file types...

Страница 24: ...you to estimate the time remaining for the Meter to operate You should consider that with decrease of air temperature the battery capacity also decreases This should be taken into account when estima...

Страница 25: ...the status field If an error has been detected the indicator will be red and in this case the Meter should be sent to repair service to have the defects corrected 4 5 2 Setting Regional Parameters Re...

Страница 26: ...moment of the last pressing of any key Auto backlight off parameter is for setting of automatic decreasing of the LCD backlight brightness after the selected time interval from the moment of the last...

Страница 27: ...a CD for installation place the CD into the disk drive Press Install ViewIt08C when the disk menu appears If you received the software in some different way just run the Install ViewIt08C exe file c a...

Страница 28: ...mware build for IT 081 Analyzer dated February 28 2012 will have the following name it081_build_120228 bsk2 Also the file name may contain the reference of the firmware application to a certain device...

Страница 29: ...as been operating with the Module of another type or if the versions of the Removable Module applications are different The device will indicate the firmware loading process from the Removable Module...

Страница 30: ...ect the mains adapter If the Meter switches on then the battery voltage has to be tested by means of the self test function Section 4 5 1 2 Low voltage 6 V is evidence that a battery or a number of ba...

Страница 31: ...ordance with the regulations of operation detailed in this Manual The manufacturer will repair or replace without charge at its option any IT 081 TV Level Meter found defective in manufacture within t...

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