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Table of Contents
Related Manuals for Caltest CT4121
Summary of Contents for Caltest CT4121
- Page 1 CT4121 User Manual...
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Page 2: Safety Summary
Safety Summary To avoid personal injury and/or product damage, review and comply with the following safety precautions. These precautions apply to both operating and maintenance personnel and must be followed during all phases of operation, service, and repair of this probe. WARNING statement calls attention to an operating procedure, practice, or condition, which, if not followed correctly, could result in... - Page 3 Observe Maximum Working Voltage Do not use the CT4121 above 40 V (DC + AC peak) CAT I between each input lead and earth. caltestelectronics.com...
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Page 4: Compliance Statements
Use Proper Power Source Do not operate this probe from a power source that applies more than the voltage specifi ed. Compliance Statements Disposal of Old Electrical & Electronic Equipment (Applicable in the European Union and other European countries with separate collection systems). This product is subject to Directive 2012/19/EU of the European Parliament and the Council of the European Union on waste electrical and electronic equipment (WEEE), and in... -
Page 5: Initial Inspection
1 Introduction Overview The CT4121 is a compact FET probe with very high input resistance and low input capacitance. With a 1.2 GHz bandwidth, this probe is ideal for timing analysis or troubleshooting high speed logic circuits, for design verification of disk drives, as well as for wireless and data communication design. -
Page 6: Product Overview
CT4121 Active FET Probe Offset Adjust Absolute Max Range ±40 V DC+peakAC POWER 1.2 GHz 10:1 1 MΩ // 3 pF 40 V 50 cm Lead Input Pins Power Box Power Indicator Figure 1 Front Panel Diagram CT4121 caltestelectronics.com 800-572-1028... -
Page 7: Using The Probe
See Figure 2. Figure 2 Battery Connection Alternatively, connect the 9 VDC power lead to the power jack on the probe. See Figure 3. Connect the lead to a USB power source. CT4121 Active FET Probe POWER 1.2 GHz 10:1 1 MΩ... -
Page 8: Inspection Procedure
WARNING At the time of powering on the probe, the input leads must not be connected to an item to be tested. Never operate the probe with the case open. Inspection Procedure Connect the BNC output connector to the vertical input of the oscilloscope. - Page 9 Vertical Scale on Oscilloscope The actual vertical scale of the oscilloscope is equal to the attenuation factor (10x) multiplied by the range of vertical scale selected on the oscilloscope. For example, with the oscilloscope on 2.0 V/div, the real vertical scale is 10 x 2.0 = 20 V/div. This value applies when the oscilloscope is set to a 50 Ω...
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Page 10: Electrical Specifications
5 Specifications All specifications apply to the unit after a temperature stabilization time of 20 minutes over an ambient temperature range of 25 °C ± 5 °C. Electrical Specifications Parameter Characteristics Bandwidth (-3dB) 1.2 GHz Rise Time (probe only) 291 ps Attenuation ratio Accuracy ±2%... - Page 11 Mechanical Characteristics Parameter Characteristics Weight 200 g Dimensions 83 x 19 x 14 mm Cable Length 120 cm (Total) Environmental Characteristics Parameter Characteristics Operating Temp/Humidity -10°C to 40°C / Up to 85% RH Storage Temp/Humidity -30°C to 70°C / Up to 85% RH Pollution Degree Pollution Degree 2 Operating: 3,000 m...
- Page 12 Frequency Response Figure 5 Frequency Response of CT4121 caltestelectronics.com 800-572-1028...
- Page 13 Input Impedance vs Frequency Data Graph Frequency (Hz) Black - Measured by LCR meter Grey - Simulated by Altium software Figure 6 Input Impedance vs Frequency Data Graph caltestelectronics.com 800-572-1028...
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Page 14: Service And Warranty Information
6 Service & Warranty Information Limited One-Year Warranty Cal Test Electronics warrants this product to be free from defective material or workmanship for a period of 1 year from the date of original purchase. Under this warranty, Cal Test Electronics is limited to repairing the defective device when returned to the factory, shipping charges prepaid, within the warranty period. - Page 15 Notes caltestelectronics.com 800-572-1028...
- Page 16 450830-001 Rev. A © 2017 Cal Test Electronics...
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