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Tektronix A621, Instructions Manual

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A621
1000 Amp AC Current Probe
Instructions

www.tek.com

070-8882-05

Summary of Contents for A621

Page 1: ...A621 1000 Amp AC Current Probe Instructions P070888205 070 8882 05 ...

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Page 3: ...A621 1000 Amp AC Current Probe Instructions www tek com 070 8882 05 ...

Page 4: ...sued and pending Information in this publication supersedes that in all previously published material Specifications and price change privileges reserved TEKTRONIX and TEK are registered trademarks of Tektronix Inc Contacting Tektronix Tektronix Inc 14150 SW Karl Braun Drive P O Box 500 Beaverton OR 97077 USA For product information sales service and technical support In North America call 1 800 8...

Page 5: ...s taxes and any other charges for products returned to any other locations This warranty shall not apply to any defect failure or damage caused by improper use or improper or inadequate maintenance and care Tektronix shall not be obligated to furnish service under this warranty a to repair damage resulting from attempts by personnel other than Tektronix representatives to install repair or service...

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Page 7: ...ecified in this manual The product is designed to be used by trained personnel only Only qualified personnel who are aware of the hazards involved should remove the cover for repair maintenance or adjustment Before use always check the product with a known source to be sure it is operating correctly This product is not intended for detection of hazardous voltages Use personal protective equipment ...

Page 8: ...obes and test leads Connect and disconnect properly Connect the probe output to the measurement product before connecting the probe to the circuit under test Disconnect the probe from the circuit under test before disconnecting the probe from the measurement product Do not connect a current probe to any wire that carries voltages current or fequencies above the current probe rating The tactical ba...

Page 9: ...hock remove the current probe from the circuit before removing any covers or panels or opening the case for servicing Use care when servicing with power on Dangerous voltages or currents may exist in this product Disconnect power remove battery if applicable and disconnect test leads before removing protective panels soldering or replacing components Verify safety after repair Always recheck opera...

Page 10: ... CAUTION indicates a hazard to property including the product Symbols on the product When this symbol is marked on the product be sure to consult the manual to find out the nature of the potential hazards and any actions which have to be taken to avoid them This symbol may also be used to refer the user to ratings in the manual The following symbols may appear on the product Important safety infor...

Page 11: ...low voltage Compliance was demonstrated to the following specification as listed in the Official Journal of the European Union Low Voltage Directive 2014 35 EU EN 61010 1 Safety Requirements for Electrical Equipment for Measurement Control and Laboratory Use Part 1 General Requirements EN 61010 2 032 Particular requirements for handheld current clamps for electrical measurement and test equipment ...

Page 12: ...ed only in the environment for which they are rated Pollution Degree 1 No pollution or only dry nonconductive pollution occurs Products in this category are generally encapsulated hermetically sealed or located in clean rooms Pollution Degree 2 Normally only dry nonconductive pollution occurs Occasionally a temporary conductivity that is caused by condensation must be expected This location is a t...

Page 13: ...cted to the low voltage installation Measurement Category III For measurements performed in the building installation Measurement Category IV For measurements performed at the source of low voltage installation NOTE Only mains power supply circuits have an overvoltage category rating Only measurement circuits have a measurement category rating Other circuits within the product do not have either r...

Page 14: ...se of natural resources we encourage you to recycle this product in an appropriate system that will ensure that most of the materials are reused or recycled appropriately This symbol indicates that this product complies with the applicable European Union requirements according to Directives 2012 19 EU and 2006 66 EC on waste electrical and electronic equipment WEEE and batteries For information ab...

Page 15: ...distorted current waveforms and harmonics is required The A621 is also compatible with DMMs by using the BNC to banana plug adapter see Replaceable parts on page 12 Figure 1 A621 current probe Symbol Description Current flow symbol This arrow shows the probe s polarity convention for measuring current flowing from positive to negative Range switch Slide to select the measurement range of the probe...

Page 16: ...jaws and clamping around the conductor Refer to the following figure NOTE Clamping around both the hot and neutral wires may give you a zero reading Figure 2 Connecting the A621 Remember to unclamp the probe from the conductor before disconnecting it from your meter or instrument 3 Adjust the probe range and oscilloscope channel as necessary to get a clear view of the signal The current drawn by s...

Page 17: ...sensitivity of the A621 loop additional turns of the wire under test through the jaws See Figure 3 The sensitivity of the A621 will be multiplied times the number of loops in the jaws For example 10 mV A X 4 turns 40 mV A CAUTION To prevent damage to the probes do not force the jaw closed If you cannot close the jaw around the conductor s either reduce the number of conductors you are measuring or...

Page 18: ...Figure 4 Increasing the A621 sensitivity Operating basics 4 A621 Instructions ...

Page 19: ...ne acetone or similar solvents Do not immerse the probe in liquids or use abrasive cleaners Specifications These characteristics apply to an A621 probe installed on a Tektronix TDS320 oscilloscope The oscilloscope must be warmed up for at least 20 minutes and be in an environment within the limits specified in Table 3 Environmental characteristics on page 7 Table 1 Electrical characteristics Chara...

Page 20: ...racteristics Dimensions 206 mm x 48 mm x 105 mm 8 11 x 1 89 x 4 13 inches Maximum conductor size 54 mm 2 13 inches Cable length 1 5 m 5 feet Weight 650 g 1 43 lb Figure 5 Physical dimensions Maintenance 6 A621 Instructions ...

Page 21: ...haracteristics Temperature Operating 0 C to 50 C 32 F to 122 F Non operating storage 20 C to 80 C 4 F to 176 F Humidity 0 C to 40 C 95 humidity 40 C to 50 C 45 humidity Typical response curves Maintenance A621 Instructions 7 ...

Page 22: ...Maintenance 8 A621 Instructions ...

Page 23: ... an acceptance check There are no A621 adjustments This procedure is valid when The system is operated in an environment that conforms to the A621 environmental specifications 0 C to 50 C unless otherwise stated The oscilloscope is set to DC coupling normal triggering Maintenance A621 Instructions 9 ...

Page 24: ...nt accuracy 0 6 of reading on AC Current measurement at 60 Hz Tektronix DM504A or equivalent1 Current Loop 100 turn 100 turns coated wire 20 AWG 0 9 mm loop diameter 7 5 cm 3 in alligator clips on ends See procedure 18 inch banana jack to banana jack patch cords three required Tektronix part numbers 012 0031 XX 012 0039 XX 100 turn current loop CAUTION Magnetic fields are produced that can cause a...

Page 25: ...um input current and accuracy checks 2 Adjust the signal generator output to between 49 mARMS and 51 mARMS as measured on the multimeter 3 Connect the A621 to the oscilloscope and make the following oscilloscope settings Time base to 5 mS div Vertical deflection to 500 mV div Coupling to DC 4 Set the A621 sensitivity switch to 100 mV A and center the trace on the oscilloscope screen 5 Clamp the A6...

Page 26: ...ing carton having inside dimensions at least one inch greater than the probe dimensions The box should have a carton test strength of at least 200 pounds 2 Put the probe into a plastic bag or wrap to protect it from dampness 3 Place the probe into the box and stabilize it with light packing material 4 Seal the carton with shipping tape Replaceable parts The A621 is shipped with the following item ...

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