To avoid electric shock

Do not touch exposed connections.

Do not service alone

Do not perform internal service or adjustments of this product unless another person capable of rendering first aid and resuscitation is present.

Disconnect power

To avoid electric shock, switch off the product power and disconnect the power cord from the mains power 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 ground continuity and mains dielectric strength after performing a repair.

EU declaration of conformity – 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 61010-031. Particular requirements for handheld probe assemblies for electrical measurement and test equipment

U.S. nationally recognized testing laboratory listing

• UL 61010-031. Particular requirements for handheld probe assemblies for electrical measurement and test equipment

Canadian certification

• CAN/CSA-C22.2 No. 61010-031. Particular requirements for handheld probe assemblies for electrical measurement and test equipment

Additional compliances

• IEC 61010-031. Particular requirements for handheld probe assemblies for electrical measurement and test equipment

Equipment type

Test and measuring equipment.

Pollution degree rating

Pollution degree 2 (as defined in IEC 61010-1). Rated for indoor, dry locations use only.

IP rating

IP20 (as defined in IEC 60529).

Measurement and overvoltage category descriptions

Measurement terminals on this product may be rated for measuring mains voltages from one or more of the following categories (see specific ratings marked on the product and in the manual).

• Overvoltage Category I. For equipment intended to be connected to a mains supply in which means have been taken to substantially and reliably reduce transient overvoltages to a level where they cannot cause a hazard.
• Measurement Category II. For measurements performed on circuits directly connected 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 rating.

Mains overvoltage category rating

Overvoltage category II (as defined in IEC 61010-1).

Product end-of-life handling

Observe the following guidelines when recycling an instrument or component:

Equipment recycling

Production of this equipment required the extraction and use of natural resources. The equipment may contain substances that could be harmful to the environment or human health if improperly handled at the product’s end of life. To avoid release of such substances into the environment and to reduce the use 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 about recycling options, check the Tektronix Web site (http://www.tek.com/productrecycling).

Probe release button

Press the release button to unlatch the probe from the instrument, and then pull the probe straight out.

WARNING:To avoid electrical shock, disconnect the probe inputs from the circuit before disconnecting the probe from the instrument.

Status LED

When the probe is connected to the instrument, the Status LED lights amber as the probe completes a self-test. Then, the Status LED goes off briefly and then lights green to indicate the probe is ready to use.

The Status LED lights amber or red if the power-on test failed, or any time an error occurs. If the Status LED light does not light green after the self-test, first disconnect the probe from the circuit under test, and then disconnect the probe from the oscilloscope.

Reconnect the probe to the oscilloscope and check that the Status LED lights amber, and then green. If the Status LED continues to light amber or red, there may be other remedies. See Error conditions.

Menu button

Press the MENU button to display on-screen probe controls on the oscilloscope. Many probe functions are available, such as AutoZero and range selection.

The remaining controls and features of the probe are located on the probe head.

Probe inputs

The maximum voltage that the probe inputs can accept depend on the probe model and the measurement points.

For example, the THDP0200 probe (shown) can measure a maximum of 1,000 V_RMS CAT II between either input and ground, and a maximum difference of 1,500 V (DC + peak AC) between the (–) and (+) inputs. These input ratings are valid for both range settings.

The other probes covered in this manual have different limits; refer to Specifications.

CAUTION:Do not use these probes above the input limits shown on the probes. The input voltage limits vary by probe model.

Overrange indicator

The OVERRANGE indicator lights red if the voltage of the input differential signal exceeds the linear range of the range setting. When this happens, the signal on the probe output does not accurately represent the signal on the probe input.

WARNING:The Overrange indicator does not detect overrange condition of common-mode voltages or voltage-to-earth potential at the probe inputs. The Overrange indicator only detects differentially between the + and – inputs (not relative to ground). Do not exceed the common-mode voltage or input voltage-to-earth ratings of the probe when taking measurements. See Overrange detection. If you are not sure, make a single-ended measurement of each point you are intending to measure differentially first. Make a single-ended measurement by tying one input lead to ground (the "–" input) and then connecting the other lead (the “+" input) to the points of interest, one at a time.

Voltage range button and indicators

Press the RANGE button to select between the voltage range (attenuation) settings of the probe. The voltage range is indicated by two LEDs on the probe and may be displayed on the oscilloscope screen, depending on the oscilloscope model.

The OVERRANGE LED lights if the applied voltage exceeds the selected range. To extinguish the LED, select a higher range. If a higher range is not available, do not attempt to take the measurement with the probe.

Bandwidth limit button and indicators

Press the BANDWIDTH LIMIT button to limit the probe bandwidth to 5 MHz. 5 MHz is close to the switching frequency of most switching transistors (FETs) in switch mode power supplies (SMPS).

The 5 MHz filter assists in the characterization and testing of power supplies in switch mode by removing all high frequency content, noise and harmonics from the measurement.

Press the button again to return to the FULL position, which selects the full specified bandwidth of the probe.

Audible overrange on/off button and indicators

The audible overrange is an audible alarm that indicates when the measured signal exceeds the selected range. The alarm is enabled when the probe is first powered on.

Press the AUDIBLE OVERRANGE button to light the OFF LED and disable the feature. To enable the alarm, press the button again to light the ON LED.

Extender Leads

These leads extend the reach of the probes by 1.0 m, which allow you to reach connections as far as 3.5 m apart. Be sure to use both extension leads so that the input leads are the same length.

However, with longer lead length, differential noise induced into the input leads is greater. Also, because of the added inductance of the leads, voltage measurements at frequencies above approximately 10 MHz may not be as precise. For best performance, use the 20 MHz or lower-bandwidth filter on your oscilloscope.

The male banana-plug ends connect to the test probes that are included with the probes.

One pair of extender leads are included with the probes.

Maximum ratings:

1000 V CAT III

600 V CAT IV

Reorder Tektronix part number: 196-3523-xx

THDP0100 Probe Accessory Kit

Reorder Tektronix part number: 020-3070-xx

Test Probes (TATP)

Maximum ratings:

2300 V CAT I. See the Specifications for the Over-Voltage Transient (OVT) rating for the probe that you are using. Typical characteristics.

1000 V CAT II

WARNING:To prevent arc flash, use caution when probing circuits with raised components. Avoid getting the metal shell between components of different potentials. Use the small hook tip (TASH) for probing in hard to reach areas.

WARNING:To prevent arc flash, do not use the test probe or hook tips on CAT III circuits. To probe CAT III circuits, use the AC280-FL, AC283-FL, or AC285-FL accessories.

Small Hook Tip (TASH)

Use the small hook tip for making connections to small conductors such as component leads.

Screw the small hook tip onto the TATP test probe. To use the hook tip, hold the probe body and pull the tip shield back. Hook the tip onto the circuit and release the shield.

WARNING:To reduce the risk of shock when measuring voltages above 1000 V, always keep your fingers behind the tactile indicator.

Maximum ratings:

2300 V CAT I. See the Specifications for the Over-Voltage Transient (OVT) rating for the probe that you are using. Typical characteristics.

1000 V CAT II

Large Hook Tip (TALH)

Use the large hook tip when working with larger components such as bolt terminals and bus bars typically found in power distribution equipment. Screw the large hook tip onto the TATP test probe and then clamp the hook tip onto the circuit.

WARNING:To reduce the risk of shock when measuring voltages above 1000 V, always keep your fingers behind the tactile indicator.

Maximum ratings:

2300 V CAT I. See the Specifications for the Over-Voltage Transient (OVT) rating for the probe that you are using. Typical characteristics

1000 V CAT II.

Voltage derating for THDP0100 probe standard accessories

The THDP0200 and TMDP0200 standard accessories can be used with the THDP0100 probe at the reduced voltage levels listed in this table.

Voltage derating for THDP0200 and TMDP0200 probe standard accessories

The operating altitude of the probe is derated to 2000 m (6560 ft) when used with these accessories.

The voltage rating and CAT rating are derated to the voltage in this table when used with these accessories.

The THDP0100 probe can be used with these accessories at the reduced voltage levels listed in this table.

When using the TP175 test probes in CAT III circuits, the tip must be in the retracted position to prevent risk of arc flash. The exposed metal tip is about 3.7 mm (0.15 in) in the retracted position.

Extender Leads

These cables extend the reach of the probes by 1.0 m. The banana ends connect to all of the clip accessories that are included with the probes.

Maximum ratings:

2300 V CAT I. See the Specifications for the Over-Voltage Transient (OVT) rating for the probe that you are using. Typical characteristics.

1000 V CAT III

One pair of extender leads are included with the probes.

Reorder Tektronix part number:196-3523-xx (one pair)

Handheld Probes (TP175)

These probes plug onto the banana input leads and extender leads. The tips are threaded to accept tip accessories. The insulator sheath at the probe tip extends and retracts into CAT III and CAT IV-rated spacings. Twist the probe body past the detent at each end of the twist to lock the probe into the CAT setting.

The insulator sheath at the probe tip extends and retracts into CAT III and CAT IV-rated spacings. Twist the probe body past the detent at each end of the twist to lock the probe into the CAT setting.

WARNING:Always verify that the probe body is locked into position before taking measurements. Do not use in the unlocked neutral position.

Maximum ratings:

1000 V CAT II

1000 V CAT III

10 A

One pair of handheld probes are included with the probes.

Note:The TP175 must be ordered through Fluke.

Pogo Pin Tip Adapters and Tips

These insulated adapters hold pogo pins and screw on to the threaded tips of the TP175 handheld probes.

WARNING:To prevent electrical shock, tighten the pogo pin tip adapter completely to the TP175 probe.

Two pairs of pogo pin types are included with the adapters; one pair have sharp, cone points and the other pair have serrated edges for embedding in soft conductors.

WARNING:The pogo pins have very sharp points. To prevent injury, handle the pins carefully when you install and remove them.

WARNING:To prevent risk of arc flash, ensure that the pogo pin is completely inserted into the adapter. Verify that the exposed metal portion of the tip is 19 mm (0.75 in) or less.

WARNING:The probe input rating is derated to 150 V CAT II, 1 mA, when used with the THDP and TMDP series probes. Do not use this pogo pin adapter to measure voltages that exceed this rating.

Maximum ratings:

150 V CAT II

1 mA

Reorder Tektronix part number: 020-3107-xx (includes 2 Tip Adapters, 2 Cone-Tip Pogo Pins, and 2 Serrated-Tip Pogo Pins)

Extended Test Probe Adapters

These adapters screw on to the threaded tips of the handheld probes. Use these adapters to reach into dense circuitry. The sharp tips can contact small component leads and circuit board features.

WARNING:The probe input rating is derated to 150V CAT II, 1 mA, when used with the THDP and TMDP series probes. Do not use this extended probe adapter to measure voltages that exceed this rating.

WARNING:The tip on this adapter is very sharp. To prevent injury, do not touch the tip.

Maximum ratings:

300 V CAT II

3 A

Reorder Tektronix part number: 012-1724-xx (one pair)

Hook Clips (AC280-FL)

Plug the probe test leads into the banana plug connectors. Squeeze the grips to expose the hook clip and then clasp it around the circuit test point.

Maximum ratings:

1000 V CAT III

3 A

One pair of hook clips are included with the probes.

Reorder Tektronix part number: AC280-FL (one pair)

Pincer Clips (AC283-FL)

The plunger probes have long probe sleeves with retracting hooks. These probes safely connect to recessed test points that are otherwise difficult to reach.

Maximum ratings:

1000 V CAT III

1 A

One pair of pincer clips are included with the probes.

Reorder Tektronix part number: AC283-FL (one pair)

Alligator Clips (AC285-FL)

These large insulated alligator clips connect to many circuit components.

Maximum ratings:

1000 V CAT III

10 A

One pair of clips are included with the probes.

Reorder Tektronix part number: AC285-FL (one pair)

Crocodile Clips

The crocodile clips connect easily to large bolts or bus bars. The connectors are double insulated for safety. The clips screw on to the threaded tips of the handheld probes.

Maximum ratings:

1000 V CAT III

10 A

One pair of clips is included with the probes.

Reorder Tektronix part number: 344-0670-xx (one pair)

TPH1000 probe holder

The TPH1000 probe holder allows you to make a hands-free connection when using the handheld probes included in the accessory kit. The probe holder can also be used with many other Tektronix probes.

The weight of the probe holder keeps the probe in place.

CAUTION:If you are probing circuitry with dense contacts such as IC pins, Tektronix recommends that you use insulated probe tip accessories designed to prevent short-circuiting adjacent IC pins or circuitry.

One TPH1000 probe holder is included with the probes.

Reorder Tektronix part number: TPH1000

THV-Browser

The THV-Browser allows you to set and lock the spacing between two handheld probe tips, and then browse your circuit with one hand.

WARNING:To avoid injury or short circuits, do not drop the THV-Browser on high voltage circuitry. The browser contains metal components.

One THV-Browser is included with the probes.

Reorder Tektronix part number: THV-Browser

TekVPI Calibration Fixture

This calibration fixture is required to complete a performance verification and adjustment procedures on the probe. It provides power to the probe and routes the probe output signal through an SMA connector on the back of the fixture.

The signal can then be measured with another instrument, (for example, a precision DMM), to check and adjust probe qualities such as gain accuracy.

Order Tektronix part number: 067-1701-xx

Replacement Label (Safety Item; Service Only)

This reusable label covers the openings to the service-only adjustments on the back of the probe. To maintain the safety of the probe, the label must be replaced after service adjustments are made to the probe.

If the original label becomes damaged or lost, order a replacement label.

Order Tektronix part number: 335-2913-xx

Example 1

Consider a case where you need to measure two sinusoidal waveforms that are 180° out of phase with each other, each with an amplitude of 1000 V_pk with no DC offset (centered at 0 V).

If both waveforms are at the same voltage potential, then the differential measurement would be 2 times the individual signal inputs (in this example, 2000 V_pk). Looking at the maximum measurable differential voltage specifications for the THDP/TMDP series probes, the THDP0100 probe is capable of measuring this signal. See Typical characteristics. For reference, the rms values of the Common-Mode Voltage and Voltage-to-Earth ratings and Maximum Input Signals for each probe model are shown in the figure above.

Example 2

Next, assume that the same waveforms from the previous example are 120° out of phase with each other. This phase relationship yields a maximum differential of 1.732 times the individual signal inputs, or 1732 V_pk. Although this is a lower potential between the inputs than in example 1, it exceeds the differential voltage ratings of the THDP0200 and TMDP0200 probes, so you must use the THDP0100 probe.

Example 3

Your task is to measure two AC waveforms of the same phase, each with an amplitude of 300 V. However, one waveform is centered on ground (– input), and the other is centered on an offset of 400 VDC (+ input). The common mode voltage is the 300 V_rms, but the maximum voltage-to-earth (the common mode voltage plus the signal waveform) must also be taken into account for both inputs. The voltage-to-earth is 300 V_rms on the (– input), but on the (+ input), the voltage-to-earth is 700 V_rms (the 300 VAC_rms plus the 400 VDC_rms). Thus the (+ input) exceeds the maximum input voltage-to-earth rating of the THDP0200 probe, so it cannot be used for taking this measurement. In this case, you must use either the TMDP0200 or THDP0100 probe.

Test setup

1. Turn on the oscilloscope.
2. Connect the probe to any channel of the oscilloscope.
3. Verify that the LEDs light on the probe.
   
   
4. Turn on the remaining test equipment and let the probe and equipment warm up for 20 minutes.
5. Make a copy of the test record to tabulate the test results. See Test record.

Test setup

1. Turn on the oscilloscope.
2. Connect the probe to any channel of the oscilloscope.
3. Verify that the LEDs light on the probe.
   
   
4. Turn on the remaining test equipment and let the probe and equipment warm up for 20 minutes.

LEDs do not remain lit

If the symptoms remain (they follow the probe), then the probe is defective and must be returned to Tektronix for repair.

Signal display