Extech 381295-220 - Manuals

381295 V1.4V 10/06 5 Quick-Start Primary Menu Map Default Menu Division Menu Trigger Menu Function Menu Positioning the Waveform on the Screen 1. Pressing moves the waveform up. 2. Pressing moves the waveform down. 3. Pressing moves the waveform left. 4. Pressing moves the waveform right. ¸

381295 V1.4V 10/06 8 Quick-Start Trigger key map 1 Press TRIG to display the TRIGGER default menu. 2 Press F2 for Single shot mode. 3 Press F3 for TRIGGER SETUP. 4 Press F4 to exit. Trigger level control 1 Pressing increases the Trigger level. 2 Pressing decreases the Trigger level.

381295 V1.4V 10/06 9 Quick-Start Function key map 1 Press FUNC to display the FUNCtion default menu. 2 Press F1 for SCOPE SETUP. 3 Press F2 for General SETUP. Press F4 to exit.

381295 V1.4V 10/06 10 Specifications General Specifications Operational Temperature: +32°F to +122°F (0°C to +50°C) Operational Relative Humidity: < 75% Storage conditions: -4°F to 140°F (-20°C to +60°C); < 75%RH Temperature Coefficient: 0.1 x (Specified Accuracy) per °C for temperature <64...

381295 V1.4V 10/06 13 RPM Range Resolution Accuracy 240 - 60,000 1 RPM ±(0.05%+5) Pulse Width Range 2uS-500mS (Pulse Width > 2uS) % Duty Range 25% - 75%

381295 V1.4V 10/06 14 Product Description In this section, the LCD, front panel buttons, controls and terminals are described. LCD Area The screen is divided into five areas: INDICATOR, READING, WAVEFORM, SETTING and MENU areas. Refer to the Figure below. [LCD Display] 1) Indicator ▪ HOLD: Freezes d...

381295 V1.4V 10/06 15 Keys Area 14) Command Menu keys The F1 – F4 soft keys’ functions change with each display screen. Default (Command Menu) A/div B/div H/div Exit 15) Arrow keys: Use the arrow keys to highlight an item. Press to move the cursor upward. This button also increases the value of a se...

381295 V1.4V 10/06 16 7) TRIG Trigger key: Set Trigger level, Single mode and Setup Tlvl Singl Tmode Exit F1 F2 F3 F4 F3 TRIGGER SETUP SOURCE: ■ CHA □ CHB □ EXT SLOPE: □ ■ TRIGGER MODE: □ AUTO ■ NOR Set Exit F1 F2 F3 F4 18) Back Light Key: Activates Back Light for the LCD, Toggles backlight ON and O...

381295 V1.4V 10/06 17 Terminal Area 22) Terminals description The METER provides 4 input jacks. ① CHA: Channel A Use the red channel A terminal for all single input measurements. ② COM: Common Use the black COMMON terminal as signal ground for DCV, ACV, Ohm, Continuity, frequency and RPM measurement...

381295 V1.4V 10/06 18 Operation Powering the METER Follow the steps below to power the Meter from a standard ac outlet. 1. Insert Power Adaptor into AC outlet. 2. Connect the Power Adaptor to the Meter. 3. I/O Turn the Meter on by holding this button for about 3 seconds. 4. The meter powers up confi...

381295 V1.4V 10/06 20 Changing the Graphic Representation Changing the vertical division DIV Open the Command Menu. A/div B/div H/div Exit F1 F2 F3 F4 F1 or F 2 Change the vertical division. (CH A or CH B) Increase the vertical division, Div is changed to manual mode Decrease the vertical division, ...

381295 V1.4V 10/06 21 Acquiring the Waveform FUNC Open the FUNCTION menu. Scope SetUp Exit F1 F2 F3 F4 F1 Open the Scope Setup menu. SCOPE SETUP INPUT A: INPUT B: ■ DC □ AC ■ DC □ AC VERTICAL MODE: □ CHA □ CHB □ A&B HORIZONTAL MODE: ■ NORM □ ROLL MEASUREMENTS A: ■ DCV □ ACV □ OHM □ BZ □ HZ □ RPM...

381295 V1.4V 10/06 23 Making a single acquisition To catch single events, perform a single shot. (One time screen update.) To set up the Meter for a single shot on the input Channel A waveform: Connect the probe to the signal to be measured. TRIG Open the Trigger menu Tlvl Singl Tmode Exit F1 F2 F3 ...

381295 V1.4V 10/06 24 Setting AUTO Trigger Level For fast trigger operation, use the AUTO trigger mode to trigger on nearly all signals automatically. To optimize the trigger slope manually: F3 Open the Trigger Setup TRIGGER SETUP SOURCE: ■ CHA □ CHB □ EXT SLOPE: □ ■ TRIGGER MODE: □ AUTO ■ NOR Set E...

381295 V1.4V 10/06 25 Setting Trigger Slope Highlight or . F3 Set or . F4 Exit. or . Trigger on either positive Slope or negative Slope of the chosen waveform. Storing and Recalling Screens The meter can store setups and waveforms to memory for later recall. Sixteen (0-15) setup and waveform memorie...

381295 V1.4V 10/06 26 Recalling Screen F3 Open the memory menu Sto Rcl Exit F1 F2 F3 F4 Memory field (M:00) appears at the top-right corner of the display area. Select the memory address from which to recall the screen. Recall the screen.

381295 V1.4V 10/06 27 PC Interface and Datalogging Software Introduction With the Meter connected to a PC, measurements can be viewed on the computer screen as they are taken. Graphical (scope) as well as numerical (DMM) data can be viewed. Measurement data can then be stored in a file and/or printe...

381295 V1.4V 10/06 28 Menu Bar in Main Software Window The Menu Bar includes FILE, SETUP, and WINDOW selections, explained below: FILE Under FILE click on EXIT to close the program SETUP Under SETUP select COMM to choose the PC COMM port and the baud rate. Select PRINTER to configure the line printe...

381295 V1.4V 10/06 30 Maintaining the Meter Cleaning the Meter Clean the Meter with a damp cloth and a mild soap. Do not use abrasives, solvents, or alcohol. Storing the Meter If you are storing the Meter for an extended period of time, charge the NI-MH battery pack before storing. It is not necessa...

381295 V1.4V 10/06 32 Appendices Troubleshooting guide If you experience a problem with the meter, try the corrective actions below before concluding that the instrument needs repair. 1. Make sure you are using a fresh NI-MH battery pack or fully charged rechargeable battery pack. If you are using t...