Promax OD-514B Instruction Manual

Promax OD-514B Instruction Manual

Dual-channel oscilloscopes

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OD-514B, OD-515B
OD-545B
OSCILOSCOPIOS DE DOBLE CANAL
DUAL-CHANNEL OSCILLOSCOPES
OSCILLOSCOPES DE DOUBLE CANAL
0 MI0852

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Summary of Contents for Promax OD-514B

  • Page 1 OD-514B, OD-515B OD-545B OSCILOSCOPIOS DE DOBLE CANAL DUAL-CHANNEL OSCILLOSCOPES OSCILLOSCOPES DE DOUBLE CANAL 0 MI0852...
  • Page 2: Table Of Contents

    OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL TABLE OF CONTENTS 1. GENERAL ...........................1 1.1 D ........................1 ESCRIPTION 1.2 S ....................... 2 PECIFICATIONS 2. SAFETY RULES .........................5 2.1 G .......................... 5 ENERAL 2.2 S ....................7 PECIFIC PRECAUTIONS 2.3 D ..........7...
  • Page 3 OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL...
  • Page 4: General

    High intensity CRT with high acceleration voltage: The CRT is a high beam transmission and high intensity type with a high acceleration voltage of 2 kV for OD-514B and 12 kV for OD-515B and OD-545B. It displays clear readable traces even at high sweep speeds.
  • Page 5: Specifications

    Approx. 100 mV/DIV without termination, 50 mV/DIV with 50 termination. CH1 signal output Bandwidth (-3 dB): OD-514B: 20 MHz, OD-515B & OD-545B: 40 MHz Balanced point variation: ≤ 1 DIV (Reference at centre graticule.) CH2 INV BAL. > 8 DIV at 20 MHz >...
  • Page 6 OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL SPECIFICATION / MODEL OD-514B OD-515B OD-545B DC ∼ 5 MHz: 0.5 DIV (EXT: 0.1 V) DC ∼ 10 MHz: 0.5 DIV (EXT: 0.1 V) 5 ∼ 20 MHz: 1.5 DIV 10 ∼ 50 MHz: 1.5 DIV (EXT: 0.2 V) (EXT: 0.2 V)
  • Page 7 OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL SPECIFICATION / MODEL OD-514B OD-515B OD-545B Approx. 0.1 V/DIV (Trace swept by an external horizontal signal applied to the Sensitivity EXT TRIG IN terminal. Vertical axis modes are CH1, CH2, DUAL and ADD modes in the CHOP mode.) EXT HOR DC ∼...
  • Page 8: Safety Rules

    OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL 2. SAFETY RULES 2.1 General Use this equipment connected only to systems with their negative of measurement connected to ground potential. This is a Class I equipment, for safety reasons plug it to a supply line with the corresponding ground terminal.
  • Page 9 OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL Symbols related with safety: DIRECT CURRENT ALTERNATING CURRENT DIRECT AND ALTERNATING GROUND TERMINAL PROTECTIVE CONDUCTOR FRAME TERMINAL EQUIPOTENTIALITY ON (Supply) OFF (Supply) DOUBLE INSULATION (Class II protection) CAUTION (Risk of electric shock) CAUTION REFER TO MANUAL...
  • Page 10: Specific Precautions

    OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL 2.2 Specific precautions 1. Do not use the equipment immediately after moving it to a room with very different temperature. Wait for a while until the equipment reaches room temperature. 2. Do not apply voltages that exceed the limits of probes or input connectors.
  • Page 11 OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL Page 8 November 2000...
  • Page 12: Installation

    OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL 3. INSTALLATION 3.1 Power Supply The OD-514B, OD-515B and OD-545B oscilloscopes can be powered with mains voltages of 100, 120, 220 or 230 V AC 50-60 Hz. Mains voltage (line voltage) can be selected from the mains socket.
  • Page 13: Handle Position

    OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL 3.2 Handle position OD-514B, OD-515B & OD-545B oscilloscopes have a movable handle for transport and for positioning the oscilloscope to obtain the best angle with the display. To change handle position, take the handle supports that are in contact with the oscilloscope chassis and detach slightly from the chassis so you can change its position.
  • Page 14: Instructions

    OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL 4. INSTRUCTIONS 4.1 Description of controls and elements Figure 2.- OD-514B frontal panel. Figure 3.- OD-515B frontal panel. Page 11 November 2000...
  • Page 15 OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL Figure 4.- OD-545B frontal panel. Oscilloscope frontal panel is zone-divided according to the controls functions: VERTICAL, TRIGGER, HORIZONTAL, etc. The following paragraphs describe the controls and elements of the frontal panel grouped according to that functional zones.
  • Page 16 OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL VERTICAL AXIS (VERTICAL) [12] CH1 (X). The input terminal of vertical channel CH1. In X-Y operation mode is X-axis. CH2 (Y). Input terminal of vertical channel CH2. In operation mode X-Y is Y-axis. [16] [11] [15] AC/GND/DC.
  • Page 17 OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL [26] SOURCE. Selects the triggering source: CH1 (X-Y) Selects CH1 signal as the triggering source when VERT MODE switch [39] is set to DUAL or ADD. When in the X-Y mode, select CH1 for the X-axis signal.
  • Page 18 When no triggering signal is applied, sweep is in a ready state and the trace is blanked out. Used primarily for observation of signal ≤ 50 Hz. SINGLE Use for single sweep. (Except OD-514B) Push to RESET: Operation (one-short triggering operation), and in common as the reset switch.
  • Page 19 OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL READOUT FUNCTION (Only available in OD-545B) [38] CURSOR measurement CURSOR ON/OFF. Press the button to turn on/off the cursor measurement. CURSOR FUNCTION. Press the button to select the measurement functions. ∆V Voltage difference measurement.
  • Page 20 OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL Rear Panel Figure 5.- Rear panel. [45] Z AXIS INPUT. Input terminal for external CRT intensity modulation signal. Trace brightness is reduced when a positive signal is applied and it is increased when a negative signal is applied.
  • Page 21: Start Up

    OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL 4.2 Start Up 4.2.1 Preliminary Operations Before switching on the instrument, perform the following operations and checks: 1. Set the controls as indicated: CONTROL Nº STATE OFF (disengaged) INTEN Mid-position Mid-position FOCUS ILLUM Full anti-clockwise position...
  • Page 22: Trace Rotation Adjustment

    OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL WARNING Ageing-resistance material has been used in the CRT. In any case, the screen can be damaged if a spot or a trace extremely bright is set on it for a long time. So if an intense brightness is needed for a measurement make sure to decrease intensity (INTEN) just after the measurement is performed.
  • Page 23: Operation Method

    Single trace and base time operation and internal triggering is the most basic operating mode of the OD-514B, OD-515B & OD-545B. Select this mode when there is only one signal to be observed, without the inconvenience of other traces on the CRT screen.
  • Page 24: Dual-Channel Operation

    AC/GND/DC [11] or [15] selector to DC. 4.3.2 Dual-Channel Operation Dual-Channel operation is the main operation mode of the OD-514B, OD-515B and OD-545B. Set VERT MODE [39] selector to the DUAL position so the channel 2 signal is displayed too.
  • Page 25: Add And Subtraction Measurement

    OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL Selection between CHOP mode and ALT mode is automatically made by the TIME/DIV switch [18] shown in Figure 8. The 5 ms/DIV and lower ranges are used in the CHOP mode and the 2 ms/DIV and higher ranges are used in the ALT mode. When the CHOP push switch [41] is engaged, the two traces are displayed in the CHOP operation at all ranges.
  • Page 26: X-Y Operation And Ext Hor Operation

    OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL To obtain the subtraction, proceed as before but now push the CH2 INV [36] key. The resultant trace will be the algebraic difference of the CH1 and CH1 signals. Now, if the input signals are in phase, the resultant trace will be the arithmetic difference of the individual traces (for ex.
  • Page 27: Triggering Options

    OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL 4.3.5 Triggering options Frequently, triggering selections is the most complicated operation to perform when using an oscilloscope due to the many options available and the concrete requirements of some signals. 1.- Triggering Source Selection (SOURCE [26])
  • Page 28 OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL 2.- COUPLING control [25] functions This switch is used for selecting the coupling of the triggering signal to the trigger circuit in accordance with the characteristics of the measured signal. This coupling is for AC triggering which is used most commonly. As the...
  • Page 29 OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL 3. Function of SLOPE switch [22] The SLOPE [22] switch selects the slope (polarity) triggering signal. Always select the steepest and the most stable slope or edge. If you are ever in doubt, or have an unsatisfactory display, try both slopes to find the best way.
  • Page 30 OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL Figure 12.-Triggering Level selection LOCK [29] When LEVEL LOCK push switch is engaged, the triggering level is automatically maintained within the amplitude of the triggering signal, and stable triggering is made without requiring level adjustment (although jitter may not be suppressed when in the ALT mode).
  • Page 31 OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL 5. Functions of HOLD OFF control [31] When the measured signal is a complex waveform with two or more repetition frequencies (periods), triggering with the mentioned LEVEL [30] control alone may not be sufficient to attain a stable waveform display. In such a case, the sweep can be stable synchronised to the measured signal waveform by adjusting the HOLD OFF time (sweep pause time) of the sweep waveform.
  • Page 32: Single-Sweep Operation

    OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL 4.3.6 Single-sweep Operation Except OD-514B Non-repetitive signals and one-shot transient signals can hardly be observed on the screen with the regular repetitive sweep operation. Such signals can be measured by displaying them in the single-sweep mode on the screen and photographing them.
  • Page 33: Waveform Magnification With Delayed Sweep

    OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL Figure 14.- x10 MAG mode 4.3.8 Waveform Magnification with Delayed Sweep OD-545B only. With sweep magnification of the preceding paragraph, although the magnification method is simple, the magnification ratio is limited to 10. With the delayed sweep method of this paragraph, the sweep can be expanded for a wider range from several times to several thousand times according to the ratio between A sweep time and B sweep time.
  • Page 34 OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL NOTE: The portion of accentuated brightness will be small if the B TIME/DIV switch selected position is many steps faster than that of A TIME/DIV switch. 4. Rotate B TIME/DIV switch [18] until the portion of accentuated brightness becomes as wide as the portion to be magnified.
  • Page 35: Readout Functions

    OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL The maximum magnification available is of several thousands, becoming the CRT brightness the limiting factor. For this operation proceed as follows: 1. Set the oscilloscope as in the continuous variable delay, as describe in the previous paragraph.
  • Page 36 OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL CH1 Display When the VERT MODE switch [39] is at CH1, DUAL or ADD state, the set values of CH1 are displayed at (1). However, these values are not shown when the VERT MODE is at CH2.
  • Page 37 OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL TV-V / TV-H Display The TV-V or TV-H” are displayed at (6) when the TRIGGER COUPLING [25] is set to TV position. Cursor Measured Value Display The relative measured values of the seven functions are displayed at (7).
  • Page 38: Maintenance

    OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL 5. MAINTENANCE 5.1 Instructions for returning by mail Instruments returned for repair or calibration, either within or outwith the guarantee period, should be forwarded with the following information: Name of Company, name of the contact person, address, telephone number, receipt (in the case of coverage under guarantee) and a description of the problem or the service required.
  • Page 39: Fuses That Cannot Be Replaced By The User

    OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL 5.3 Fuses that Cannot be Replaced by the User This fuse can only be replaced by qualified personnel. It is located on the HORIZONTAL PCB and Its position identifier and characteristics are the following:...

This manual is also suitable for:

Od-545bOd-515b

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