Omega HHT-1500 manuale d’uso

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TABLE OF CONTENTS 1. SPECIFICATIONS ...................................................................................... 1 2. PANEL FUNCTIONS ................................................................................... 2 3. OPERATING INSTRUCTION ..................................................................... 4 3.1. Normal Operation .[...]

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1 1 1. SPECIFICATIONS Speed (Non-contact): Range Resolution Accuracy RPM 10.00 - 99999 0.01/0.1/1 0.04% ±2 dgts rps(Hz) 0.200 - 2000.0 0.001/0.01/0.1 0.04% ±2 dgts Speed (Contact) Range Resolution Accuracy RPM / (/ symoblizes "Contact" 20.00 - 29999 0.01/0.1/1 0.04% ±2 dgts m/min 2.000 - 2999.9 0.001/0.01/0.1 0.04% ±2 dgts ft/min 6.00[...]

2 2 2. PANEL FUNCTIONS[...]

3 3 2.1. Reflecting tape Attach a reflecting tape to the surface of the unit to be measured 2.2. Reflecting signal light beam It is recommenced that the reflecting surface is perpendicular to the emitting/receiving unit for best measurement. 2.3. Emitting/Receiving Unit The red light emits from the left side of the tachometer. And a receiving senso[...]

4 4 2.10. Start Measurement Symbol 2.11. Hours:Minutes Clock[...]

5 5 3. OPERATING INSTRUCTION[...]

6 6 3.1. Normal Operation a. Install four 1.5V AA size batteries. b. Cut off a piece of reflective tape of size 1.0 cm x 1.4 cm (optimal size) c. Wipe off oil or stains from the surface where reflective tape will be adhered. d. Stick the self-adhesive re flective tape on the object whose rotational speed is to be measured. The reflective tape shoul[...]

7 7 3.2. Using the Mechanical Adaptor (Option RM1502) a. Select proper rubber head. b. Attach the mechanical adaptor to the unit. and fasten the screw. c. Press the unit button (left button) to select RPM / ( instead of RPM only). The auxiliary LED will be turned on while the main LED will be turned off. d. Press against the shaft of the object to [...]

8 8 3.3. Measurement of Surface Speed(m/min, ft/min, or yd/min) a. Attach the mechanical adaptor (option RM-1502) to the unit. b. Press the unit button to select desired unit. The auxiliary LED will be turned on while the main LED will be turned off. c. Slightly touch against the surface to be measured.[...]

9 9 3.4. Use as an Event Counter with Ext ernal Light Source a. Press the unit button several times to select the unit of "No. O" (counts). The "O" symbol is used to instruct users that external light source is required. b. Wh en the symbol "No. O" appears, the tachometer reset the upper clock to 00:00 and start counti[...]

10 10 3.6. External Signal(TTL) Input (RM1501) Instead of receiving signal from light source, users can input external TTL signal (High: > 4.5V, Low: 0V) through pin 8 of RS232C connector with pin 5 as signal ground. NOTE: It is strongly recommended that the emiting/receiving unit be covered to avoid undesired light signal coming in. 3.7. Digita[...]

11 11 3.8. Measuring Slow Rotating Objects If the rotati ng speed of the object which you are measuring is very slow, it is recommended that you use a tripod to hold the tachometer in place and use multiple pieces of tape for more accurate result. If multiple pieces of tape are used, each piece of tape should be located at a equal distance to each [...]

12 12 seconds, and the max/min/ave symbols will disappear in LCD. 3.10. Turning On/Off Tachometer Press any button will turn on the power of tachometer. To turn off the power of tachometer, press and hold the START button until word "OFF" is displayed in LCD. Then release the START button. 3.11. Disable Auto-Power-Off Function If tachomet[...]

13 13 3.12. REPLACING THE BATTERIES a. When the symbol (low battery) appears in the LCD, it is time to replace the batteries. b. Remove the screw of the battery cover and remove the battery cover. c Replace the old batteries with 4 new batteries. Do not mix different type of batteries together. d. Replace the battery cover and fasten the screw.[...]

14 14 4. Protocol of RS-232C Serial Interface (RM-1501) Ten bytes are sent out through RS-232C connector to PC. The definitions of each byte are as followings: Byte 1: Leading byte 0x0D Byte 2: Decimal point of LCD display bit0: dp1 (0000.0), if 1 bit1: dp2 (000.00), if 1 bit2: dp3 (00.000), if 1 Byte 3: Flags for current status bit0: low battery, [...]

15 15 5. Installation of Window TM Application Software (RM-1501) 5.1. For Windows 3.1 A. Start Microsoft TM Windows TM B. Insert disk in drive A (or B) C. From Program Manager , select File menu and choose Run D. Type a:setup (or b:setup) and press Enter key 5.2. For Windows 95 A. Start Windows TM 95 B. Insert disk in drive A (or B) C. Press STA[...]

16 16 6. Description of Windows TM Application Program (RM-1501) Main Window : When the program is executed, the program automatically search for connected tachometer or available serial port. If no serial port is available, then a message of "No communication port" will be displayed, and the program exits . Once communication port is set[...]

17 17 VIEW FILE : If the View option under FILE in the Main Window is selected, a view window will be shown as above, and the users can review your ASCII data file. If a printer is connected to the PC, users can print out content selectively. File: Open users data file by selecting this menu. Users will be asked to enter file name. After the name b[...]

18 18 Selected: Indicate the current record number being selected. DISPLAY : DISPLAY menu has four options: DIGITAL, ANALOG, LIST, and GRAPHIC. DIGITAL: If this option is selected or CTRL+D is pressed, a window, which emulates multimeter's LCD display, shall appears on the screen. ANALOG:[...]

19 19 If this option is selected or CTRL+A is pressed, a window, which emulates an analog meter, shall appear on the screen. LIST: If this option is selected or CTRL+L is pressed, a window, which lists the date, function, range, and value every sampling, shall appear on the screen. GRAPHIC: If this option is selected or CTRL+G is pressed, a window,[...]

20 20 the minimum and maximum value for the Y (vertical) axis. Option : If you select Option, a pull down menu will show three options: Sample Rate, Baud Rate. Upper Limit: Enter upper limit. If upper limit is exceeded, a OVER message will be displayed in screen. Lower Limit: Enter lower limit. If displayed value is less than lower limit, a UNDER m[...]

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