Operator’s Manual ZS1000, ZS1500, ZS2500 High-Impedance, Active Probe
ZS1000, ZS1500, ZS2500 High-Impedance Active Probes Operator’s Manual
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Operator’s Manual TABLE OF CONTENTS Safety Instructions ................................................................................. 1 Symbols.............................................................................................. 1 Precautions ........................................................................................ 1 Operating Environment ...................................................................... 2 Introduction ........................................................
ZS Series High-Impedance, Active Probes Care and Maintenance .......................................................................... 16 Cleaning ........................................................................................... 16 Calibration Interval ........................................................................... 16 Service Strategy ............................................................................... 16 Returning a Probe for Calibration or Service ........................
Operator’s Manual Safety Instructions This section contains instructions that must be observed to keep this oscilloscope accessory operating in a correct and safe condition. You are required to follow generally accepted safety procedures in addition to the precautions specified in this section. The overall safety of any system incorporating this accessory is the responsibility of the assembler of the system.
ZS Series High-Impedance, Active Probes Operating Environment The accessory is intended for indoor use and should be operated in a clean, dry environment. Before using this product, ensure that its operating environment is maintained within these parameters: Temperature: 5 to 40° C. Humidity: Maximum relative humidity 80 % for temperatures up to 31 °C decreasing linearly to 50 % relative humidity at 40° C. Altitude: Up to 10,000 ft (3,048 m).
Operator’s Manual Standard Accessories The ZS1000, ZS1500, and ZS2500 probes are shipped with the following standard accessories: Standard Accessory Quantity Replacement Part Number Straight Pin Lead – Short 1 PK-ZS-003 Straight Pin Lead – Long 1 PK-ZS-004 Right Angle Lead – Short 1 PACC-LD003 Right Angle Lead – Long 1 PACC-LD004 Y Lead Adapter 1 PK-ZS-005 Micro-Grabber Pair 1 PK-ZS-007R and PK-ZS-007B Ground Blade – Wide 1 PK-ZS-011 Probe Tip – Standard 3 PK-ZS-001 Right Angle S
ZS Series High-Impedance, Active Probes Features and Accessories The ZS1000, ZS1500, and ZS2500s probes are provided with numerous features and accessories to make probing and connecting to different test points easier than ever. • The small, low mass probe head is designed for ease of use and high performance. • The probe tip socket fits easily onto 0.025 inch square pins for direct access to test points. Several different adapters are available which connect directly in the probe socket.
Operator’s Manual Tips Straight Tip The straight tip is rugged and designed for general probing. Fits in either probe socket. (PK-ZS-001) IC Lead Tip The IC Lead Tip is covered in insulation on all sides (except for a small edge), this tip was designed to prevent shorting neighboring IC leads. The gold part of the tip is not insulated and should touch the IC lead to be tested. It is one-size-fits-all and will work with any IC lead pitch. Fits in either probe socket.
ZS Series High-Impedance, Active Probes Tips, continued Discrete SMD Tip The crescent shape of this tip is designed to fit tightly on capacitors, resistors, transistors and other surface mount components with discrete leads. Fits in either probe socket. 2.54 mm Square Pin Adapter 2.54 mm Square Pin Adapter. The 2.54 mm square pin adapter fits into both the input and ground lead of the ZS probe for easy connection to standard 2.54 mm square pin spacing on a circuit board.
Operator’s Manual Grounds Offset Ground The offset pin is designed to be attached to either socket of the probe head. The offset pin is the highest quality grounding solution and is recommended in high frequency applications. The offset ground is designed to connect to the ground socket and wrap around the probe head. This gives the ability to a probe signal and ground that are extremely close together. The short length provides high-quality grounding for high-frequency applications.
ZS Series High-Impedance, Active Probes Leads While longer leads provide greater flexibility when connecting the probe to a circuit, the added inductance may degrade the fidelity of high frequency signals. See Section 4 for additional information. Short and Long Straight Pin Lead These leads have a socket on one end and a square pin on the other to connect to the input or ground socket of the probe body, and may be used for general purpose probing.
Operator’s Manual Probe Holder Freehand Probe Holder The FreeHand lets you focus on the oscilloscope screen instead of on maintaining contact to multiple test points. It allows the user to concentrate on what is really important – the waveform. It is designed to keep most of the weight on the probe tip and will prevent lost contact when a bump to the table shakes the circuit under test. Probe Operation Handling the Probe The ZS series probe is a precision test instrument.
ZS Series High-Impedance, Active Probes Operation with a Teledyne LeCroy Oscilloscope When the ZS1000, ZS1500, or ZS2500 probe is connected to any compatible Teledyne LeCroy oscilloscope, the displayed scale factor and measurement values are automatically adjusted. The probe can be controlled through the oscilloscope graphical user interface. When connected, a Probe dialog appears behind the corresponding channel dialog. Refer to your oscilloscope’s manual for specific operation instructions.
Operator’s Manual High Frequency Measurements Probe Input Loading When you touch a probe to the circuit under test, the probe will affect your measurement because of the probe’s input impedance introduced into the circuit. All probes present resistive, capacitive and inductive loading. Inductive Loading (Lead Length) A significant element in this circuit is the inductance shown in the input ground leads of the oscilloscope probe. Example probe input equivalent circuit. Actual diagrams p.14.
ZS Series High-Impedance, Active Probes The resonant frequency of a series LC circuit can be raised by decreasing the inductance, capacitance or both. Since the input capacitance is already very low and cannot be reduced, you can only try to reduce the inductance. This can be accomplished by using the shortest possible input lead as well as the shortest possible ground lead.
Operator’s Manual Where Ctotal is the combined probe and circuit capacitance and Rtotal is combined circuit and probe resistance. For a setup where Ct = 0.9 pF and a source resistance is 250 Ω, the measured rise time will be 0.495 ns, which will correspond to a bandwidth of 909 MHz, assuming no inductive loads. trise = 2.2 x 0.9 x 10-12 x 250 Ω = 0.495 ns Parallel combination of 250 Ω and 1 MΩ is still 250 Ω Example Probe input equivalent circuit. Actual diagrams p.14.
ZS Series High-Impedance, Active Probes Probe Impedance and Equivalent Circuit ZS1x00 Impedance 1000000 100000 10000 1000 100 10 10Hz 1kHz 100kHz 10MHz 1000MHz ZS1x00 Equivalent Circuit 14 924282-00 Rev A
Operator’s Manual ZS2500 Impedance 1000000 100000 10000 1000 100 10 1 100Hz 1kHz 10kHz 100kHz 1MHz 10MHz 100MHz1000MHz 10000MHz ZS2500 Equivalent Circuit 924282-00 Rev A 15
ZS Series High-Impedance, Active Probes Care and Maintenance Cleaning The exterior of the probe and cable should be cleaned, using a soft cloth moistened with water. The use of abrasive agents, strong detergents, or other solvents may damage the probe. Always ensure that the input leads are free of debris. CAUTION. The probe case is not sealed and should never be immersed in any fluid. Calibration Interval The recommended calibration interval is one year from the time the probe is put into service.
Operator’s Manual Return shipment should be prepaid. Teledyne LeCroy cannot accept COD or Collect Return shipments. We recommend air-freighting. Follow these steps for a smooth product return. 1. Contact your local Teledyne Lecroy sales or service representative to obtain a Return Material Authorization. 2. Remove all accessories from the probe. Do not include the manual. 3. Pack the probe in its case, surrounded by the original packing material (or equivalent) and box. 4.
ZS Series High-Impedance, Active Probes Replacement Parts The probe connection accessories and other common parts can be ordered through the North America Customer Care Centers. Refer to Standard Accessories table after the Introduction of this manual. Performance Verification This procedure can be used to verify the warranted characteristics of the ZS1000, ZS1500, and ZS2500 High Impedance Active Probe. The recommended calibration interval for the model ZS1000, ZS1500, and ZS2500 is one year.
Operator’s Manual Because the input and output connector types may vary on different brands and models of test instruments, additional adapters or cables may be required. List of Required Equipment Description Minimum Requirement Test Equipment Examples Digital Oscilloscope ProBus Interface; Windowsbased Teledyne LeCroy WaveRunner WaveSurfer Xs Digital Multimeter (DMM) with test probe leads Function Generator 4.5 digit Agilent Technologies 34401A DC: 0.1% Accuracy Fluke 8842A-09 AC: 0.
ZS Series High-Impedance, Active Probes 3. Turn on the other test equipment and allow them to warm up for the manufacturer’s recommended timeframe. 4. While the instruments are reaching operating temperature, make a photocopy of the Performance Verification Test Record (located in Appendix A), and fill in the necessary data. 5. Select the channel to which the probe is connected. Set the oscilloscope scale factor to 20 mV/div. 6. Disconnect the ProBus Extender Cable from the oscilloscope.
Operator’s Manual Verification Procedure A. Output Zero Voltage Output Zero Voltage Test Setup 1. Connect one end of a BNC cable to the female BNC connector on the probe end of the ProBus extender cable. Connect the precision 50 Ω terminator to the other end of the BNC cable. 2. Connect the banana plugs of the Precision terminator to the input of the DMM. Make sure that the plug corresponding to the BNC shield (marked "Ground") is connected to the LOW or COMMON input of the DMM. 3.
ZS Series High-Impedance, Active Probes B. LF Attenuation Accuracy LF Attenuation Accuracy Setup 1. Disconnect the BNC tee at the power supply from the dual banana plug adapter. Connect the BNC tee to the output of the function gen erator. (Use a 50 Ω termination if the function generator requires such a load.) 2. Carefully insert the Straight Tips (supplied in accessory kit) into the sockets of the probe head.
Operator’s Manual 6. Set the mode of the function generator to sine wave, the frequency to 70 Hz and the output amplitude to 5 Vrms ±10 mV as measured on the DMM. 7. Record the output voltage to 1 mV resolution as "Generator Output Voltage" in the Test Record. Be careful not to alter the output amplitude after the reading is recorded. 8. Divide the reading recorded in step B-7 by 10 and record the result with 100 μV resolution as "Expected Output Voltage, top range" in the Test Record. 9.
ZS Series High-Impedance, Active Probes 20. Remove the banana plug adapter from the DMM and connect the precision 50 Ω terminator to the DMM, making sure that the banana plug side marked "GROUND" is connected to the LOW or COMMON input of the DMM. 21. After the DMM has stabilized, record the reading to 100 μV resolution as "Measured Output Voltage, mid range" in the Test record. 22.
Operator’s Manual Item Tested Item Serial Number Date Technician Serial Number Calibration Due Date ZS Equipment Used Instrument Model Oscilloscope Digital Multimeter Function Generator Test Record OUTPUT ZERO VOLTAGE Step Description A-5.
ZS Series High-Impedance, Active Probes Reference Material Specifications Please refer to the Teledyne LeCroy website at teledynelecroy.com for detailed specification information. Certifications This section contains the instrument’s Electromagnetic Compatibility (EMC), Safety and Environmental certifications. EMC Compliance EC DECLARATION OF CONFORMITY - EMC The probe meets intent of EC Directive 2004/108/EC for Electromagnetic Compatibility.
Operator’s Manual Safety Compliance EC DECLARATION OF CONFORMITY – LOW VOLTAGE The probe meets intent of EC Directive 2006/95/EC for Product Safety.
ZS Series High-Impedance, Active Probes Contact Teledyne LeCroy Teledyne LeCroy Service Centers United States and Canada World Wide Corporate Office Teledyne LeCroy Corporation 700 Chestnut Ridge Road Chestnut Ridge, NY, 10977-6499, USA Ph: 800-553-2769 / 845-425-2000 FAX: 845-578-5985 teledynelecroy.com Support: contact.corp@teledynelecroy.com Sales: customersupport@teledynelecroy.
