ScienTECH Scientech 801C User manual

30 MHz Oscilloscope
Scientech 801C
Learning Material
Ver. 1.1
An ISO 9001:2008 company
Scientech Technologies Pvt. Ltd.
94, Electronic Complex, Pardesipura, Indore - 452 010 India,
+ 91-731 4211100, : [e-mail] , : www.ScientechWolrd.com

Scientech 801C
Scientech Technologies Pvt. Ltd. 2
Save paper, save trees, save earth
Dear User,
We request you to use the Learning material in the CD form
provided with this supply.
Your this act will help to save paper.
Please remember that each paper manual requires 50-100 sheets of paper
on an average.
Your CD learning material has
colourful diagrams,
plenty of theory,
detailed experiments with observation tables,
frequently asked questions, etc.
…….. and more so sometimes videos as well.
-Scientech Eco Foundation
-

Scientech 801C
Scientech Technologies Pvt. Ltd. 3

Scientech 801C
Scientech Technologies Pvt. Ltd. 4
RoHS Complian
ce
Scientech Products are RoHS Complied.
RoHS Directive concerns with the restrictive use of Hazardous substances (Pb, Cd, Cr,
Hg, Br compounds) in electric and electronic equipments.
Scientech products are “Lead Free” and “Environment Friendly”.
It is mandatory that service engineers use lead free solder wire and use the soldering irons
upto (25 W) that reach a temperature of 450°C at the tip as the melting temperature of the
unleaded solder is higher than the leaded solder.
30MHz Oscilloscope
Scientech 801C
Table of Contents
1. Safety Instructions 5
2. Introduction 6
3. Features 7
4. Technical Specifications 8
5. Panel Diagram 9
6. Panel Controls 10
7. Back Panel 11
8. Operating Instructions 12
9. Warranty 19
10. List of Accessories 19

Scientech 801C
Scientech Technologies Pvt. Ltd. 5
Safety Instructions
Read the following safety instructions carefully before operating the instrument. To
avoid any personal injury or damage to the instrument or any product connected to it.
Do not operate the instrument if you suspect any damage within.
The instrument should be serviced by qualified personnel only.
For your safety:
Use proper Mains cord : Use only the mains cord designed for this instrument.
Ensure that the mains cord is suitable for your
country.
Ground the Instrument : This instrument is grounded through the protective
earth conductor of the mains cord. To avoid electric
shock the grounding conductor must be connected to
the earth ground. Before making connections to the
input terminals, ensure that the instrument is properly
grounded.
Observe Terminal Ratings : To avoid fire or shock hazards, observe all ratings and
marks on the instrument.
Use only the proper Fuse : Use the fuse type and rating specified for this
instrument.
Use in proper Atmosphere : Please refer to operating conditions given in the
manual.
1. Do not operate in wet / damp conditions.
2. Do not operate in an explosive atmosphere.
3. Keep the product dust free, clean and dry.

Scientech 801C
Scientech Technologies Pvt. Ltd. 6
Introduction
EasyScope - Scientech 801C is a New Trend Oscilloscope with feel of Digital
Touch. The Digital Readout Backlit LCD displays Volts/Div and Time/Div settings.
Rugged yet light weight 801C has sharp and bright trace. The Vertical Bandwidth is
more than adequate for all your needs and you can easily view signals upto 40 MHz.
Built-in component tester, which makes it an indispensable instrument, this allows
both passive and active components to be tested, while still in-circuit.

Scientech 801C
Scientech Technologies Pvt. Ltd. 7
Features
Digital Readout with Backlit LCD
30 MHz Bandwidth
x10 Magnification
20 ns max sweep speed
Stable Triggering upto 40MHz
Alternate Triggering
Sharp Trace CRT & Auto focus
Gold Plated BNC Connectors
Built - in – Component Tester

Scientech 801C
Scientech Technologies Pvt. Ltd. 8
Technical Specifications
Operating Modes:
Channel 1, Channel 2, Channel 1 & 2
alternate or chopped (approximately
350KHz), X - Y (Ratio 1:1 Input via
CH2), Add/ Sub CH1± CH2, Invert
CH2.
Vertical deflection (Y):
(Identical channels)
Bandwidth: DC - 30MHz (-3dB)
Rise Time: 12ns (approximately).
Deflection coefficients:
Micro-controller based 12 calibrated steps
5 mV/Div–20 V/Div (1-2-5 sequence).
Electronic Control Display on 32 character
backlit Alphanumeric LCD.
Accuracy: ± 3%
Input Impedance: 1M | | 30pF
(approximately)
Input: Gold plated BNC
Input coupling: DC-AC-GND
Maximum Input voltage: 400V (DC
+ Peak AC).
Time Base:
Time coefficients: Micro-controller based
18 calibrated steps, 0.5s/Div - 0.2 s/Div
(1-2-5 sequence) with magnifier x10 to 50
ns/Div, with variable control to 20ns/Div.
Electronic control display on 32 character
backlit Alphanumeric LCD.
Accuracy: ± 3% (in cal position)
Trigger System:
Modes: Auto / Level
Source: CH1, CH2, Alt CH1/CH2,
External.
Slope: Positive or Negative
Coupling: AC
Sensitivity: Internal 5mm, External 0.8V
(Approximately).
Trigger Bandwidth: 40MHz.
Horizontal Deflection (X):
Bandwidth: DC - 2.5MHz (-3 dB).
X-Y mode: Phase Shift < 3° at 60KHz.
Deflection coefficients: Micro-controller
based 12 calibrated steps 5 mV/Div-20
V/Div (1-2-5 sequence). Electronic
Control Display on 32 character backlit
Alphanumeric LCD.
Input Impedance: 1M ||30pF
(approximately)
Input: Gold plated BNC
Built-in Single Touch Component
Tester
Test Voltage: Max 8.6Vrms Open
Test Current: Max 8mArms Shorted
Test Frequency: 50 Hz, Test circuit
grounded to chassis
Continuity Tester: Beeper sounds
<75 approx.
General Information:
Cathode Ray Tube: 140mm Rectangular
tube with internal graticule. P31 Phosphor
Accelerating potential: 2KV
(approximately)
Display: 8 x 10cm
Trace Rotation: Adjustable on front panel
Calibrator: Square Wave Generator
1KHz (approximately), 0.2Vpp ± 1% for
probe compensation.
Stabilized Power Supply: All operating
voltages including the EHT
Mains Voltage: 230V ±15%, 50Hz. 60Hz
on request
Power Consumption: 45VA
(approximately)
Weight (approx): 7.5Kg. (approximately)
Dimensions (mm): W325 x D370 x H155
Operating Temperature: 0-40C°; 90% RH
(Subject to change)

Scientech 801C
Scientech Technologies Pvt. Ltd. 9
Panel Diagram

Scientech 801C
Scientech Technologies Pvt. Ltd. 10
Panel Controls
(1) Power ‘On/Off’ : Rocker switch for supplying power to instrument.
(2) X10 : Switch when pushed gives 10 times magnification
of the X signal.
(3) XY : Switch when pressed cuts off the time base &
allows access to the external horizontal signal to
be fed through CH2 (used for X - Y display).
(4) CH1/ 2 : Switch selects channel & trigger source (released
Trig 1/ 2 CH1 & pressed CH2).
(5) Mono/ Dual : Switch selects Mono or Dual trace operation.
(6) Alt/ Chop/ Add : Switch selects alternate or chopped in Dual mode.
If Mono is selected then this switch enables
addition or subtraction of channel i.e.CH1 ± CH2.
(7) Ext : Switch when pressed allows external triggering
signal to be fed from the socket marked Trigger
Input (24).
(8) Alt : Selects alternate trigger mode from CH1 & CH2.
In this mode both the signals are synchronized.
(9) Slope (+/-) : Switch selects the slope of triggering, whether
positive going or negative going.
(10) Auto/Level : Switch selects Auto/Level position. Auto is used
to get trace when no signal is fed at the input. In
Level position the trigger level can be varied from
the positive peak to negative peak with Level
Control.
(11) Level : Controls the trigger level from peak to peak
amplitude of signal.
(12) Component : Switch when pressed starts CT operation.
Tester
(13) X Shift : Controls horizontal position of the trace.
(14) TB Var : Controls the time speed in between two steps of
Time/Div switch. For calibration put this pot fully
anticlockwise at Cal position.
(15) Intensity : Controls the brightness of the trace.
(16) TR : Trace Rotation controls the alignment of the trace
with graticule (screw driver adjustment).
(17) Focus : Controls the sharpness of the trace.