• BK PRECISION ® INSTRUCTION MANUAL MODEL 2190B 100 MHz DUAL-TRACE OSCILLOSCOPE BK PRECISION ®. • TEST INSTRUMENT SAFETY WARNING Normal use of test equipment exposes you to a certain amount of danger from electrical shock because testing must often be performed where exposed high voltage is present. An electrical shock causing 10 milliamps of current to pass through the heart will stop most human heartbeats. Voltage as low as 35 volts dc or ac rms should be considered dangerous and hazardous since it can produce a lethal current under certain conditions. • Instruction Manual BK PRECISION ® Model 2190B 100 MHz Dual-Trace Oscilloscope ©2000 B+K Precision Corp. This symbol on oscilloscope means “refer to instruction manual for further precautionary information”. Bk Precision Oscilloscope Model 2120 Manual BK Precision Model 2120B Oscilloscope 20MHz 115V 33YA. Find BK Precision 2120 Oscilloscope 20MHz Model in Saint. Bk Precision 20 Mhz Oscilloscope Model 2120 Manual. This symbol appears in the manual where the corresponding information is given. • TABLE OF CONTENTS Page Page TEST INSTRUMENT SAFETY.inside front cover OPERATING INSTRUCTIONS (Continued) X Y Operation.15 FEATURES. • FEATURES LOW COST, HIGH PERFORMANCE VERTICAL FEATURES B+K Precision Model 2190B is one of the most economi- High Sensitivity cal 100 MHz analog oscilloscopes on the market, yet it has 5 mV/div sensitivity for full bandwidth. High-sen- all of the high performance features needed for most appli- sitivity 1 mV/div and 2 mV/div using PULL X5 gain cations, including delayed time base, bandwidth limiter, and control. • FEATURES AUTO Sweep X Y Operation Selectable AUTO sweep provides sweep without trig- Channel 1 can be applied as horizontal deflection ger input, automatically reverts to triggered sweep (X-axis) while channel 2 provides vertical deflection operation when adequate trigger is applied. • SPECIFICATIONS CRT: HORIZONTAL AMPLIFIER Type: 6-inch rectangular with integral graticule, (Input through channel 1 input) P31 phosphor. X−Y mode: Display Area: 8 x 10 div (1 div = 1 cm). CH 1 = X axis. CH 2 = Y axis. Accelerating Voltage: 12 kV. • SPECIFICATIONS Trigger Coupling: Output Impedance: Approximately 50 ohms. AUTO: Sweep free-runs in absence of Frequency Response: 20 Hz to 100 MHz, 3 dB. Suitable trigger signal. Intensity Modulation NORM: Sweep triggered only by adequate Input Signal: TTL level, intensity increasing with trigger signal. • CONTROLS AND INDICATORS 15 28 Fig. Model 2190A Controls and Indicators. GENERAL FUNCTION CONTROLS VERTICAL CONTROLS 1. ON Indicator. Lights when oscilloscope is “on”. VERTical MODE Switch. Selects vertical display mode. Download buku pendidikan agama islam kelas 10 smk kurikulum 2013. Four-position lever switch with the following 2. POWER Pushbutton. Turns oscilloscope “on” and positions: “off”. • CONTROLS AND INDICATORS 10. CH1 AC-GND-DC Switch. Three-position lever 15. CH2 POSition/PULL INVert Control: switch with the following positions: POSition: Rotation adjusts vertical position of channel 2 trace. Channel 1 input signal is capacitively coupled; dc In X-Y operation, rotation adjusts vertical position component is blocked. • CONTROLS AND INDICATORS HORIZONTAL CONTROLS TRIGGERING CONTROLS 20. Main Time Base TIME/DIV Control. Provides step 26. HOLDOFF/PULL NORM TRIG Control. Selection of sweep rate for the main time base. When HOLDOFF: the VARiable Sweep control is set to CAL, sweep rate Rotation adjusts holdoff time (trigger inhibit period is calibrated. • CONTROLS AND INDICATORS TV-H: 30. EXTernal TRIGger Jack. External trigger input for Used for triggering from television horizontal sync single- and dual-trace operation. Also serves as hi-pass (low frequency reject) trigger coupling. REAR PANEL CONTROLS (not shown) LINE: 31. Fuse Holder/Line Voltage Selector. Contains fuse Signal derived from input line voltage (50/60 Hz) and selects line voltage.
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