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Probe bandwidth is the -3dB point; it is set by signal frequency and rise time. Choose at least 2–3× the signal bandwidth, with a faster probe rise time.

Check the battery and charging accessories first; if it still won't start, it may be a hardware fault — contact the manufacturer.

Dead pixels are mostly caused by detector aging; run the dead-pixel correction function in the device menu to remove them.

Current probes ship with a standard BNC connector and work with any brand of oscilloscope.

Mainly bandwidth, current range, accuracy and jaw diameter; reference the datasheet curves for the current-frequency trade-off.

Usually caused by pointing at the sun, lasers or flames. Power off and leave it unused for 72 hours; minor burn-in may recover over time.

High-power functions drain the battery fast; if cycle life is reached, contact the maker for the built-in battery or replace removable batteries with equivalent new ones.

Mainly bandwidth, voltage range, accuracy and common-mode rejection ratio (CMRR).

Steps to install NI-VISA and the matching hardware driver for a VTECH PXI device on Windows.

Adjust focus manually or automatically; warm up 5–10 minutes after startup; clean a contaminated lens.

A receiver has a preselector, 6dB RBW, tuned (point) measurement and quasi-peak; a SA lacks these and sweeps, making it inaccurate for low-repetition pulses.

4-wire (Kelvin) measurement removes lead-resistance errors when measuring small resistances; above about 1 kΩ the lead resistance can be ignored and 2-wire suffices.

Re-download the correct driver and edit the .inf field name depending on the OS.

Official/authorized purchases with proof enjoy warranty, returns and factory repair. Process: remote troubleshooting, then repair (free in-warranty, quoted out-of-warranty), then eligible returns/exchanges.

500x faster than traditional receivers, sweeps 9 kHz–30 MHz in 1 second, 10 MHz real-time bandwidth, direct QP curves, for transient automotive interference.

Send two SCPI commands over the serial port to switch compatibility mode and rename the instrument, so Keysight software can recognize it.

An open probe is noise-prone because its impedance approaches infinity; place a grounded metal plate under the probe (or use the meter top) to improve success.

A thermal imager passively receives infrared radiation (heat) from a target and converts it into a visual image carrying temperature data.

Which power supply is recommended for water electrolysis hydrogen production?

How to connect the VT311 chassis over LAN in automatic (DHCP) or manual (static IP) mode.

The GDM-8261A can be fitted with an optional scanner card providing 16 channels of voltage/resistance and 2 channels of current.

Operation procedure, maintenance and safety notes for the ZCTEK insulation detector, covering connection, voltage setting, detection and battery care.

Emissivity is the ratio of energy radiated by a surface to that of a blackbody at the same temperature, and depends on material, finish, color, and shape.

RIGOL DG1000/DG1000Z/DG4000/DG5000 sine wave max VPP is 10V into 50Ω, decreasing with frequency.

Max safe voltage is 40 Vpp; Ext input working range is ±600 mVpp and Ext/5 is ±3 Vpp.

Hipot testing verifies a product's dielectric strength; it applies high voltage at three locations, such as between supply lines and the grounded enclosure.

What is the minimum operating voltage of the IT8100A/E for fuel-cell testing?

Check the network device configuration and verify host-software compatibility before connecting.

Cameras offer sound alarms (based on ROIs) and color alarms (above/below/interval thresholds).

Ensure the DUT is safely grounded and de-energized, the E terminal is grounded, and the battery is charged. Touch the start/stop key to apply high voltage and to turn it off.

Infrared thermometry is divided into short-, mid-, and long-wave bands; the choice relates to target temperature range and detector material.

Insulation resistance drops as temperature rises, as test voltage rises, and sharply when moisture is absorbed—readings vary with these factors.

Steps to generate a permanent option activation code via the SIGLENT online activation website after purchasing an option.

Comparing DG1000Z, DG4000 and DG5000 series at 20MHz/1Vpp/50Ω: higher-frequency models produce better square waves.

How can a single DC supply provide negative voltage?

It is a non-uniformity calibration (NUC) that cancels the camera's own thermal signal; it is frequent right after power-on and decreases after a few minutes.

Beyond basic resistance measurement, advanced insulation testers offer field-strength measurement, temperature measurement, data storage/export and automatic maintenance reminders.

In SIGLENT specs, div equals the vertical scale value (e.g. V/div). Example using the SDS1052DL+ DC gain accuracy formula.

What does remote sense compensation do?

Low-emissivity targets reflect background energy, so reflected-temperature compensation must be set to remove reflective error.

This is not a setting error but a known limitation. Only the MSO5000/7000 series uses this storage method; other models have no time data column.

Select a ROI, press Home, open the menu and click the second icon from the right (ε) to adjust that ROI's partial emissivity.

Comparing analog and digital oscilloscopes in display principle, bandwidth, features and stability.

Few materials transmit infrared energy; when one blocks the optical path, a transmission parameter must be set for correction.

Check power cord, power strip, power switch (SDS1000CFL has main and protection switches), power light and fan; contact the dealer if unresolved.

Do ITECH supplies support solar array simulation (SAS)?

Main menu → Settings → Capture Mode → Recording; if the format is MP4, change it to IRS under Settings → Storage & Save Options → Video Format.

Check trigger source channel, manually adjust trigger level, use AUTO, and adjust time base to rule out alias/false wave interference.

Basic steps to connect an RF signal source to a spectrum analyzer: set frequency, level and modulation on the source, then use peak markers on the analyzer.

What if the IT6500C stays on "networking" at startup?

A multimeter is essential for circuit diagnosis but has usage limits. This FAQ covers common mistakes and rules for AC/DC voltage measurement.

The clicking sound from inside a thermal imager is automatic calibration (non-uniformity correction), usually when moving fast or just after power-on; it lasts ~2-3 seconds and is normal.

Why does the insulation resistance reading keep changing? It is affected by capacitive charging current, absorption current, leakage current and non-linear material behavior under high voltage.

Why does a new clamp meter show zero current on a three-core cable? Because the live and neutral magnetic fields cancel; measure a single conductor instead.

Average-responding meters calibrate mean × crest factor; true-RMS uses root-mean-square. Both read true sine waves correctly, but only true-RPS meters read distorted/non-sine waves accurately.

Ground resistance testers serve power, telecom and building grounding networks. Stake-type testers suit early-stage design and require disconnection; clamp-type testers suit routine maintenance and need no disconnection.

DPO4000 Aux In has 1 MΩ input impedance; a TekVPI active probe triggers the warning. Clear it and use the probe, but double the trigger level.

Copy TPS2000.TEK to a CF card, then run Update Firmware under Utility→File Utilities; it takes about five minutes — do not power off or remove the card.

Check that the TLA Server is running, that you can ping the instrument with firewall ports 111/9000/3389 open, and release a local 'in use' connection.

Search the site for your instrument family plus 'programmer manual', look up SCPI commands by group/syntax/parameters/examples, then send query/write commands via OpenChoice Talker/Listener.