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Summary of Contents for Planar IT-081
- Page 1 IТ-081 TV LEVEL METER OPERATING MANUAL...
- Page 2 Revision 1.1 of April 4, 2016...
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Page 3: Table Of Contents
TABLE OF CONTENTS 1. PRODUCT FAMILY GENERAL INFORMATION .............. 4 2. GENERAL DESCRIPTION AND PRINCIPLE OF OPERATION........5 2.1. Introduction....................................5 2.2. Safety Precautions..................................5 2.3. Function ......................................5 2.4. Environmental Conditions................................6 2.5. Package Contents ..................................6 2.6. Specifications ....................................7 2.7. Design and Operation Overview ..............................8 2.7.1. -
Page 4: Product Family General Information
Base Unit and perform the needed measurements. So, replacing the modules you can obtain options featuring the following different applications: IT-081 TV Level Meter (MC-081 module plugged-in), 5 to 900 MHz range. Measurement of level, video-audio and carrier-noise ratios;... -
Page 5: General Description And Principle Of Operation
Meter are purpose-made and their replacement will result in inaccurate operation of the Meter. To exclude the possibility of mechanical damage to the IT-081, the instructions regarding the storage and transportation (see Sections 7 and 8) of the Meter must be observed. -
Page 6: Environmental Conditions
Figure 2.1 Figure 2.2 This Operating Manual is made in accordance with the hardware version 02.80.01 for MB-08 Base Unit and software version 1.2.x.x/1.2.x.x for IT-081. 2.4. Environmental Conditions Normal operating conditions: a) ambient temperature (23±5) С; b) relative air humidity (55±25)%;... -
Page 7: Specifications
Signal level indication ................4 characters on LCD Warm-up time ......................10 min. IT-081 can be powered by - AC circuit with 110-240 V voltage, 50 ± 0.5 Hz frequency with no more than 5% harmonic content, via PS12/0.8 Mains Adapter;... -
Page 8: Design And Operation Overview
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 (A1) and (A2). -
Page 9: Component Arrangement
Low Frequency Amplifier (LFA) and goes to the built-in speaker. 2.7.3. Component Arrangement The IT-081 is made up of two components. Both modules are contained within plastic shockproof Sectional housings. MC-081 Removable Module is plugged in the Base Unit and connected to it via specific connector. -
Page 10: Preparation For Measurements
If the Removable Module software version is the same as the installed software, the IT-081 will start to check the Removable Module after the power has been switched on. After successful check, the following message (see figure 4.1) will appear on the screen: Figure 4.1... - Page 11 Figure 4.2 There are two sets (tabs) of icons: measurement icons and configuration icons. You can switch between the tabs using ◄ and ► keys. To select the required mode, set the corresponding icon at the bottom of the screen. The names of the modes will appear above each functional key.
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Page 12: Measurement Procedure
4.3. Measurement Procedure 4.3.1. General Information The IT-081 offers five following measurement modes: a) measurement of signal level in the frequency point and of TV signal parameters, as well as measuring alternating and direct voltage at the input of the Meter in Level measurement mode;... -
Page 13: Level Measurement Mode
1. Attenuator. Selecting the input attenuation value. 0 dB : Input attenuator off; 20 dB : Input attenuator 20 dB; 40 dB : Input attenuator 40 dB; Auto : Automatic selection of the input attenuation value. 2. Tuning. Setting the frequency tuning mode. Chan.: Frequency tuning by channels;... -
Page 14: Spectrum Measurement Mode
1 µV, 1 mV or 1 mW (Section 4.5.2). To define V/A and C/N ratios for analog channels the IT-081 performs measurements in three frequency points. The first one is the video carrier frequency (or the frequency your Meter is set to). The second frequency point is the audio carrier frequency (for Secam D/K template this point is 6.5 MHz shifted up... -
Page 15: Scan Measurement Mode
To enter the channel number or frequency directly, use the alphanumeric keypad. After you have set the frequency in MHz, press MENU/ENTER. After you pressed this key, the selected channel will be placed in the middle of the screen. You can set the position of spectrum scan screen by ◄... -
Page 16: Data Logger Function
130 spectrum data logger pages. The Meter allows viewing the saved data off-line or by means of a computer. To check the data logger memory, the IT-081 offers memory manager mode. This mode allows testing, free resources determination, and formatting of the memory. -
Page 17: Channel Plans
4.4.2. Channel Plans 4.4.2.1. Channel Plan List This mode allows performing all the operations with channel plans: viewing, editing, deleting, and creation of new pages. See the view of the screen in figure 4.10. The table contains the plan name and the date of its creation or editing. The channel plan installed in the Meter is marked by sign. - Page 18 The screen view of the channel parameter editing mode is shown in the figure 4.12: Figure 4.12 The sets of channel parameters depend on the modulation type. For channels with analog modulation the following parameters are available for editing: 1. Type: analog. 2.
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Page 19: Limit Plans
4.4.3. Limit Plans 4.4.3.1. Limit Plan List Limit plans contain the criteria for checking the channel parameters and are employed during measurements in Channel data logger mode. This mode allows performing all the operations with limit plans: viewing, editing, deleting, and creation of new pages. See the view of the screen in figure 4.13. The table contains the limit plan name and the date of its creation or editing. -
Page 20: Channel Data Logger
9. Min Digital Level. The minimum possible value of signal level for digital channels. 10. Max Digital Level. The maximum possible value of signal level for digital channels. 11. Min Digital C/N (dB). The minimum possible value of C/N ratio for digital channels. - Page 21 4.4.4.3. Viewing and Checking Channel Data Logger Page When viewing the contents of a channel data logger page, the data table has the same view as in the figure 4.16. The table contains the channel number, name and frequency, and also the measured parameters. If any errors are found in the channel parameter values, this channel number will be shown against the red background.
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Page 22: Spectrum Data Logger
Figure 4.18 To create a page, it is necessary to enter its name, select the channel and limit plans, and select the input attenuator mode. 4.4.5. Spectrum Data Logger 4.4.5.1. General Information Spectrum data logger is intended for measuring the signal spectrum in the defined frequency band and recording the measurement results to the Meter memory with date and time thereof. -
Page 23: Memory Manager
The IT-081 is equipped with nonvolatile NVRAM device for the storage of various data of the Data Logger. The memory 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. -
Page 24: Self-Test And Configuration Modes
The battery is intended for power supply of the system clock and of the memory (for saving the current Meter settings). If red indicator appears, the IT-081 should be sent to repair service to have its battery replaced. -
Page 25: Setting Regional Parameters
4.5.1.6. Checking Removable Module This program checks the condition of the Removable Module components. If the test does not detect any error, the green indicator will be displayed in 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. -
Page 26: Identification Data Readout
Figure 4.24 The following parameters in the table are available for editing: 1. Theme. Selecting of the colors for the user interface elements. 2. Key sound. Setting of the key pressing sound or turning the sound off. 3. Volume. Adjusting of the audio indication volume. 4. -
Page 27: Operation Controlled By Pc
You can control operation of your IT-081 TV Level Meter via PC. For connection to PC use USB connector on the right panel of your Meter. The IT-081 package contains the cable for connection to PC and a CD with the software, which allows performing the following operations: 1. -
Page 28: Updating Software
YYYYYY is the identification number of the build. For example, the file with the firmware 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 hardware version, and other data. -
Page 29: Updating Software From Removable Module
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). -
Page 30: Maintenance
Method of correction: Replace the input adapter by the proper one. Possible reason: Incorrect setting of channel plan or channel allocation standard (template), which makes the IT-081 to tune to offset video carrier point. This can be tested in spectrum analyzer mode. -
Page 31: Storage
С, relative humidity up to 90 % (at 30 С). 8. TRANSPORTATION The IT-081 must be shipped in any closed vehicle at temperature from -20 to +40 С, relative humidity 90% (at 30 С) and atmospheric pressure of 84 to 106.7 kPa (630 to 800 mm Hg).
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