GW Instek - GOS 625 - Oscilloscope

Features

High intensity CRT with high acceleration voltage. The CRT is a high beam transmission, high intensity type with a high acceleration voltage of 2.2 KV. IT displays clear readable traces even at high sweep speeds.

High stability with less drift. The oscilloscope employs a temperature compensation circuit which is newly developed to reduce the drift of base lines and DC balance disturbance caused by temperature change.

A trigger level lock function which makes the triggering adjustment unnecessary. A new trigger level lock circuit is incorporated. This circuit eliminates the procedures of teh troublesome triggering adjustment not only for displaying signals but also for that of video signals and large duty-cycle signals.

TV sync separator circuit incorporated within the TIME/DIV switch for automatic triggering of TV-V and TV-H signals.

Linear Focus. Once the beam focus is adjusted to the optimum position, it is automatically maintained regardless to the intensity change.

Specifications

Vertical Axis

Sensitivity – Norm: 5mV – 5 V/DIV, X 5 MAG : 1mV – 1 V/DIV (remark: 1-2—5 sequence, 10 ranges)

Sensitivity Accuracy – Norm: <=+/-3%, X 5 Mag : <=+/-5% (Remark :10° to 35°C (50° to 95°F), 1 kHz, at 8 DIV)

Vernier Vertical Sensitivity – To 1/2.5 or less of panel-indicated value.

Frequency Bandwidth – DC-20MHz, DC-15MHz. AC coupling: Low limit frequency 10Hz (remark : With reference to 100kHz, 8 DIV, frequency response within 3 dB)

DC Balance Shift – NORM : +/- 0.5 DIV, x 5 Mag : +/- 2.0 DIV

Chopping Repetition Frequency – Approx. 250KHz

Input Coupling – AC / GND / DC

Maximum Input Voltage – 400 V ( DC + AC peak) (remark: AC : <=1kHz)

Common Mode Rejection Ratio – 50:1 or better at 50 kHz sinusoidal wave (remarks : When sensitivities of CH1 and CH2 are set equally)

Horizontal Axis

A Sweep (main sweep) Time – 0.2 uSec – 0.5 Sec/DIV (Remarks : 1-2-5 sequence, 20 ranges)

Sweep Time Accuracy - +/- 3% (Remarks : 10° to 35°C (50° - 95°F)

Vernier Sweep Time Control - <=1/2.5 of panel-indicated value.

X-Y Mode

Sensitivity – Same as vertical axis (X- axis CH input signal, Y – axis CH2 input signal)

Sensitivity Accuracy – NORM : +/- 4%, x 5 Mag : +/- 6% (remarks : 10° to 35°C (50° -95°F)

Frequency Bandwidth – DC- 1 Mhz (-3dB)

X-Y Phase Difference - <=3° at DC-50KHz

Calibration Voltage
Waveform – Positive-going square wave

Frequency – 1 kHz + 5%

Duty Ratio – Within 48:52

Output Voltage – 2 Vp-p +/- 2%

Output Impedance – Approx. 2 K ohm.

CRT

Type – 6-inch rectangular type, internal graticule.

Phosphor – P 31

Acceleration Voltage – Approx. 2KV

Graticule – Internal ; continuous adjustable illumination

Line Power Requirements

Voltage – AC 100V, 120V, 220V, 240V +/- 10% Selectable

Frequency – 50Hz or 60Hz

Power Consumption – Approx. 40VA

Mechanical Specifications

Dimensions - 310W x 165H x 450D (mm)

Weight – Approx. 7.1kg (16lbs)