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Noise Meters

A noise meter, also known as a "sound level meter", is designed to accurately measure the "noise" or unwanted component of a signal or variable.


Showing results: 121 - 135 of 145 items found.

  • 2U Family of Programmable AC-DC Switching Power Supplies to 1400W

    Acopian Technical Company

    The 2U family of programmable AC-DC power supplies sets a new standard for flexible and reliable power for your application. Available in a Rack Mounting or Benchtop at 1400W power levels with single output voltages ranging from 10 to 270V and current capabilities up to 120A. A user-friendly front panel provides reliable linear controls for finer adjustment and digital LED voltage and current meters. Standard features include; 'soft start' operation and 'no load' operation, thermostatically speed controlled fans to limit acoustic noise, short circuit and overload protection, thermal protection, internal EMI filtering, RFI shielding and remote sensing.

  • RF Milliwatt Meters

    Type NDB-2 and NDB-3 - National RF, Inc

    National RF’s Type NDB-2 and NDB-3 RF Milliwatt Meters are affordable pieces of test equipment for both the RF laboratory and the home experimenter. Both provide a digital reading of RF power in dB reference 1 milliwatt of power into a 50 ohm load (i.e. 0 dBm). The circuitry consists of a low noise logarithmic amplifier that drives a digital A/D converting meter circuit. The lowest power levels that can be read are about –73 dBm (approximately 40 microvolts or .00000003 milliwatts). The maximum power input should not exceed 10 milliwatts (+10 dBm or .010 watts) when inputed without attenuation. An internal attenuator is provided and described in the next section.

  • TX Ranger

    4405200 - BI Communications

    The TX Ranger is a hand-held Time Domain Reflectometer (cable fault locator) with a first range of 2.5 meters combined with a 1.3 Nano second pulse width gives a blind zone of only 5 cm, it makes this the ideal product for fault location on short cable assemblies and harnesses. Small and intermittent faults can be easily identified by using the selectable gain control allowing trace amplification of up to 7 times and when set to scan lock mode the advanced noise reduction software may be selected allowing the user to select between 8,16 and 32-point trace averaging further enhancing the clarity of the trace by reducing electrical and environmental interference.

  • NI-9227, 50 kS/s/ch, 5 Arms, 24-Bit, 4-Channel C Series Current Input Module

    781099-02 - NI

    50 kS/s/ch, 5 Arms, 24-Bit, 4-Channel C Series Current Input Module - The NI‑9227 was designed to provide high-accuracy measurements to meet the demands of data acquisition and control applications. It includes built-in anti-aliasing filters. When used with a C Series Voltage Input Module, the NI‑9227 can measure power and energy consumption for applications such as appliance and electronic device test. You can not only measure and meter current and power but also look at quality factors such as noise, frequency, and harmonics.

  • NI-9227, 50 kS/s/ch, 5 Arms, 24-Bit, 4-Channel C Series Current Input Module

    781099-01 - NI

    50 kS/s/ch, 5 Arms, 24-Bit, 4-Channel C Series Current Input Module - The NI‑9227 was designed to provide high-accuracy measurements to meet the demands of data acquisition and control applications. It includes built-in anti-aliasing filters. When used with a C Series Voltage Input Module, the NI‑9227 can measure power and energy consumption for applications such as appliance and electronic device test. You can not only measure and meter current and power but also look at quality factors such as noise, frequency, and harmonics.

  • Power Line Meter

    Alpha Lab, Inc.

    The Line EMI Meter measures electromagnetic interference in a single-phase AC power line. It plugs into a wall outlet (mains socket) and requires no battery. It immediately displays total line noise in millivolts (range 1999 mV, resolution 1 mV) in the frequency range 10 KHz 10 MHz (the frequency limits at which sensitivity is of the maximum sensitivity). A speaker plays the sound of the EMI, amplitude demodulated, in order to identify the EMI source (such as an AM or shortwave radio station vs. a motor vs. an electric arc).

  • sbRIO-9227, Non-Enclosed, 50 kS/s/ch, 5 Arms, 24-Bit, 4-Channel C Series Current Input Module

    781118-01 - NI

    Non-Enclosed, 50 kS/s/ch, 5 Arms, 24-Bit, 4-Channel C Series Current Input Module - The sbRIO‑9227 was designed to provide high-accuracy measurements to meet the demands of data acquisition and control applications. It includes built-in anti-aliasing filters. When used with a C Series Voltage Input Module, the sbRIO‑9227 can measure power and energy consumption for applications such as appliance and electronic device test. You can not only measure and meter current and power but also look at quality factors such as noise, frequency, and harmonics. Non-enclosed modules are designed for OEM applications.

  • Trace Level Chemiluminescence NO-NOy Analyzer

    Model T200U NOY - Teledyne Advanced Pollution Instrumentation

    The Model T200U NOy analyzer has been developed and refined specifically to address the challenges of NOy monitoring as required, for example, in the US NCore network. It uses the proven chemiluminescence principle and is coupled with a remote NOy converter via umbilical to allow measurements with a lower detectable limit of 50 ppt.The Model T200U NOy analyzer combines a gold plated reaction cell with an enhanced performance pump, special low noise photomultiplier tube, and unique signal conditioning to provide exceptional sensitivity. In addition, a pre-reactor separates the NO-O3 reaction from background chemiluminescence to allow accurate auto-zero of the analyzer. The remote NOy converter is provided with a stainless steel, NEMA 4X (IP65) enclosure and custom sample umbilical to allow a mounting height of 10 meters. In addition, the converter features a unique purge circuit designed to remove residual calibration gas.

  • Bench/System Multi-Range DC Power Supply With Digital Control, 3 Or 4 Outputs, 315 To 420W With/without Remote Interfaces

    MX Series - Aim-TTi

    Three or four high performance outputs each with full functionalityRange switching gives variable voltage/current combinationsShared power mode provides double power from a single outputLow output noise and ripple via linear final regulationHigh setting resolution of up to 1mV and 0.1mAVariable OVP and OCP trips on all outputs50 setting memories per output plus 50 linked memoriesSelectable voltage tracking (isolated tracking)Selectable current meter averagingSwitchable remote sense capabilityGraphic LCD provides simultaneous output meteringNumeric or spin-wheel control of all parametersIndividual or combined output on/off control with programmable delay sequencing.3U half-rack case for bench or rack mounting (4U rack kit accessory available)RS-232, USB and LAN (LXI) interfaces (P models)GPIB option (P models only)Duplicate power & sense terminals at rear (P models)

  • Gas Filter Correlation CO Analyzer

    Model T300 - Teledyne Advanced Pollution Instrumentation

    DescriptionFeaturesSpecificationsApplicationsDownloadsMaintenanceThe Model T300 measures low ranges of carbon monoxide by comparing infrared energy absorbed by a sample to that absorbed by a reference gas according to the Beer-Lambert law. Using a Gas Filter Correlation Wheel, a high energy IR light source is alternately passed through a CO filled chamber and a chamber with no CO present. The light path then travels through the sample cell, which has a folded path of 14 meters. The energy loss through the sample cell is compared with the span reference signal provided by the filter wheel to produce a signal proportional to concentration, with little effect from interfering gases within the sample. This design produces excellent zero and span stability and high signal to noise ratio, allowing extreme sensitivity.

  • 11 Function True RMS Multimeter + NCV

    Extech EX350 - Extech Instruments Corporation

    The EX350 is a professional DMM loaded with advanced features and functions. Low Impedance (LoZ) mode eliminates false readings caused by ghost voltages. Low Pass Filter (LPF)attenuates high frequencies to reduce noise for accurate readings. True RMS provides accurate readings when measuring distorted or noisy waveforms. Built-in Non-Contact AC Voltage Detector quickly checks for the presence of AC Voltage before testing. Features a 4000 count LCD display, data hold, min-max, relative mode, capacitance zero, auto power off, continuity and diode test. This meter will measure AC/DC voltage to 600 V and AC/DC current to 10 amps. Complete with test leads, manual and two AA batteries.

  • Class 2 Sound Level Meter

    SP79 - Martindale Electric Co. Ltd

    The SP79 is a Class 2 sound level meter for on-site measurements in accordance with Noise at Work legislation in industrial and office environments. Featuring A and C frequency weighting and fast and slow time weighting, the compact design can be handheld, or mounted on a tripod for longer term monitoring of Min / Max values. Detailed recording and analysis can be made using the AC and DC outputs. The SP79 complies with BS EN 61672-1:2003 and is supplied with a detachable windshield and hard carry case. The large high contrast display includes both digital reading and analogue bar graph. An optional Class 2 sound level calibrator is available to verify accuracy before and after readings in accordance with international standards. The SPC70 is simple to use and provides a 1kHz reference at 94dB and 114dB.

  • Network Analyzer

    DPNA-6G AXIe - Holding Informtest

    The AXI DPNA-6G module is the world's first network analyzer in the form factor of the AXIe-1 module, as well as the first Russian device that meets the AXIe-1 standard. In the mode of the network parameters meter, the AXI DPNA-6G module measures the vector values ​​of the network parameters on two ports: transmission coefficients (S12, S21) and reflection (S11, S22). At the same time, all necessary types of calibrations are supported: one- and two-port short-circuit, XX, matched load, transmission normalization. The software supports the import of third party calibration standard parameters. In the measuring receiver mode, the module provides:*generation of a harmonic signal (frequency synthesizer);*spectrum analyzer and power level in a given band;*measuring the frequency of a known signal;*measurement of analog modulation parameters;*phase noise measurement.

  • 12 Function True RMS Multimeter + NCV

    Extech EX355 - Extech Instruments Corporation

    The EX355 is a professional DMM loaded with advanced features and functions. Low Impedance (LoZ) mode eliminates false readings caused by ghost voltages. Low Pass Filter (LPF)attenuates high frequencies to reduce noise for accurate readings. True RMS provides accurate readings when measuring distorted or noisy waveforms. Built-in Non-Contact AC Voltage Detector quickly checks for the presence of AC Voltage before testing. Features a 6000 count LCD display, data hold, min-max, relative mode, capacitance zero, auto power off, continuity and diode test. This meter will measure AC/DC voltage to 600 V and AC/DC current to 10 amps. Complete with test leads, general purpose bead wire temperature probe, manual and two AA batteries.

  • PXI-6233, 16 AI (16-Bit, 250 kS/s), 2 AO, 6 DI, 4 Sinking DO, Bank-Isolated, PXI Multifunction I/O Module

    779620-01 - NI

    16 AI (16-Bit, 250 kS/s), 2 AO, 6 DI, 4 Sinking DO, Bank-Isolated, PXI Multifunction I/O Module—The PXI‑6233 is a bank-isolated DAQ device designed for voltage I/O. It offers analog I/O, digital input, sinking digital output, two 32‑bit counters, and digital triggering. The digital input and outputs are compatible with 24 V signals. It combines the safety and performance benefits of isolation with high-performance timing, amplification, and calibration technologies to offer accurate measurements and precise control. The PXI‑6233 is ideal for test, measurement, control, and design applications in environments with high voltages and electrical noise. You can use the PXI‑6233 to read from encoders, flow meters, and proximity sensors as well as control valves, pumps, and relays.

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