Specifications
*Build-in 6 Digit Frequency Counter*20MHz/40MHz/50MHz Dual Channel
*10 times sweep magnification
*TV Synchronization,X-Y
Key Features:
High intensity CRT with high acceleration voltage
Trigger level lock function which makes the triggering adjustment unnecessary
Alternate triggering: Even an observation of two waveforms of different frequencies, the waveform of each channel is stably triggered.
TV sync triggering: The oscilloscope has a sync separator circuit for triggering of TV-V and TV-H signals.
X-Y operation: Set the switch to X-Y. Then the instrument works as an X-Y oscilloscope. CH1 can be applied as horizontal deflection (X-axis) while CH2 provide vertical deflection (Y-axis).
Technical Specifications:
Model Specifications | 20MHz Oscilloscope
| |
Vertical Axis | Sensitivity | 5mV~5V/DIV, 10 steps in 1-2-5 sequence |
Vernier Vertical Sensitivity | To 1/2.5 or less of panel-indicated value. | |
Frequency bandwidth | DC~20MHz | |
| AC coupling: Low limit frequency 10Hz. (With reference to 100KHz, 8DIV. Frequency response with-3dB.) | |
Rise time | Approx. 17.5nS | |
Input impedance | Approx. 1M ohm//Approx.25pF | |
DC balance shift | Adjustable on panel | |
Linearity | ≤ ±0.1 DIV of amplitude change when waveform of 2 DIV at graticule center is moved vertically. | |
Vertical modes | CH1: CH1 single channel. CH2: CH2 single channel. DUAL: CH1 and CH2 are displayed. ALT or CHOP selectable at any sweep rate. ADD: CH1+CH2 algebraic addition. | |
Chopping repetition frequency | Approx. 250KHz | |
Input coupling | AC, GND, DC | |
Maximum input voltage | 400V (DC+AC peak), AC: frequency 1KHz or lower When set probe switch at 1:1, the maximum effective readout is 40V pp (14 Vrms at sine wave), Or set prove switch at 10:1, the maximum effective readout is 400 V pp (140 Vrms at sine wave). | |
Common mode rejection ratio | 50:1 better at 50KHz sinusoidal wave. (When sensitivities of CH1 and CH2 are set equally) | |
Isolation between channels (At 5m V/DIV range) | >1000:1 at 50 KHz | |
>30:1 at 15 KHz | ||
CH2 INV BAL | Balanced point variation: ≤1 DIV (Reference at center graticule) | |
Triggering | Triggering Source | CH1, CH2, LINE, EXT(CH1and CH2 can be selected only when the vertical mode is DUAL or ADD). In ALT mode, if the TRIG.ALT switch is pushed in, it can be used for alternate triggering of two different sources. |
Coupling | AC: 20Hz to full bandwidth | |
Slope | +/- | |
Sensitivity | 20Hz~2MHz: 0.5DIV, TRIG-ALT:2 DIV, EXT:200mV 2-20MHz: 1.5 DIV TRIG-ALT:3 DIV, EXT:800mV TV: Sync Pulse more than 1 DIV(EXT: 1V) | |
Triggering Modes | AUTO: Sweeps run in the free mode when no triggering input signal is applied. (Applicable for repetitive signals of frequency 25Hz or over) NORM: When no triggering signal is applied, the trace is in the ready state and not displayed. TV-V: This setting is used when observing the entire vertical picture of television signal. TV-H: This setting id used when observing the entire horizontal picture of television signal. | |
EXT triggering signal input Input impedance Max. Input Voltage | Approx: 1M ohm//Approx. 25 pF 400V (DC+AC peak), AC: Frequency not higher than 1KHz | |
Horizontal Axis | Sweep time | 0.2 uSec ~ 0.5Sec/DIV, 20 steps in 1-2-5 sequence |
Sweep time accuracy | +/-3% (10°C-35°C) | |
Vernier sweep time control | ≤1/2.5 of panel-indicated value | |
Sweep magnification | 10 times | |
x10MAG sweep time accuracy | +/-5%(20nSec~50nSec are uncalibrated) | |
Linearity | +/-5%, x10MAG: +/-10% (0.2s and 1us) | |
Position shift caused by x10MAG | Within 2 DIV at CRT screen center | |
X-Y Mode | Sensitivity | Same as vertical axis |
Frequency bandwidth | DC to at least 500 KHz | |
X-Y phase difference | ≤3°at DC~50 KHz | |
Calibration Voltage
| Waveform | Positive-going square wave |
Frequency | Approx. 1KHz | |
Duty ratio | Within 48:52 | |
Output voltage | 2V p-p +/-2% | |
Output impedance | Approx. 1K ohm | |
CRT | Type | P31 |
Phosphor | Approx. 2KV | |
Acceleration voltage | Approx. 2kV | |
Effective screen size | 8x10 DIV (1 DIV=10mm (0.39 in)) | |
Graticule | Internal | |
Trace rotation | Provided | |
Mechanical Specifications:
Dimensions: 310W x 150H x 455D (mm)
Weight: Approx. 24 lb
THIS MACHINE IS 220V INPUT DEVICE. FOR US CUSTOMER, THE PRICE INCLUDES A STEP UP TRANSFORMERS ALREADY.
ONE YEAR WARRENTY.
Payment
We accept T/T, Western Union, and Cash as payment method.
Cash payment is only available for the customers those can come to our office or store.
We request 100% prepayment before we ship. If your order is too big and our cargo cannot be ready within 7 business days, we request 30% deposit; the other 70% should be paid after the cargo was ready.
We never accept COD term and partial payment, no matter how big your order is. Please understand this.
Quality Check and Warranty
We check our products one by one before we pack and ship to make sure they are all what you ordered, to make sure the quantity and in good condition.
We provide 3 moths international warranty. You can get free exchange or repairing service within this period since you paid. We are responsible for all the charges and fees caused by exchange or repairing service.
Packaging
We usually pack our products by normal plastic bags or bubble bags and use cartons as outer packaging. We always choose the best and safe packaging material to make sure your orders won’t be damaged during delivery.
Shipping
Usually we use traceable international Express service to ship. We ship within 3 business days after your payment was cleared. If your order is too big and our cargo cannot be ready within 7 business days, our shipping time should be longer.
We accept drop shipping and domestic pickup
Return and exchange
We provide 15 days unconditional return and exchange service; you pay all the charges and fees caused by return and exchange.
International Buying Tips
Never believe low price for famous brand products. Please always remember to permit your suppliers earn some profit.
Never order too many products from the sellers you don’t know well. Please always remember to test your new suppliers more times by small order.
If possible, please visit your new suppliers’ companies.
NEVER Trust offshore companies.
Looking for Worldwide Business partners
We are looking for worldwide business partners. We are not only selling internationally but also buying internationally. If you have good products you can contact us for cooperation