Voltage Preamplifiers
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NI-9206, ±10 V, 250 kS/s, 16-Bit, 32-Channel, 60 VDC Isolation C Series Voltage Input Module
779526-01
±10 V, 250 kS/s, 16-Bit, 32-Channel, 60 VDC Isolation C Series Voltage Input Module - The NI‑9206 performs differential analog input with four programmable input ranges. The module provides up to 600 VDC (400 VDC in Europe) channel‑to‑earth ground isolation, making the module ideal for accurately monitoring large fuel cell and battery stacks. By referencing the module common (COM) to the middle of the NI‑9206 bank, you can measure 16 consecutive cells and remain within 10 V of the module COM.
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NI-9262, 1 MS/s/ch Simultaneous, ±10 V, 6-Channel C Series Voltage Output Module
785503-02
1 MS/s/ch Simultaneous, ±10 V, 6-Channel C Series Voltage Output Module - The NI-9262 is a simultaneously updating analog output module. It features overvoltage protection, short-circuit protection, low crosstalk, fast slew rate, high relative accuracy, and NIST-traceable calibration. The NI-9262 module includes a channel-to-earth ground isolation barrier for safety and noise immunity.
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NI-9229, ±60 V, 50 kS/s/ch, 24-Bit, Simultaneous Input, 4-Channel C Series Voltage Module
779785-01
±60 V, 50 kS/s/ch, 24-Bit, Simultaneous Input, 4-Channel C Series Voltage Module - The NI‑9229 performs differential analog input. The NI‑9229 is an effective general-purpose analog module because of its resolution, sample rate, and input range. With channel‑to‑channel isolation, your entire system, including the device under test, is protected from harmful voltage spikes up to the isolation rating. In addition to safety, isolation eliminates measurement errors caused by ground loops because the front end of the module is floating.
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NI-9252, ±10 V, 50 kS/s/ch, 24-Bit, 8-Channel C Series Voltage Input Module
786783-01
±10 V, 50 kS/s/ch, 24-Bit, 8-Channel C Series Voltage Input Module - The NI-9252 is an 8-channel analog input module for CompactDAQ and CompactRIO systems. Each channel provides a ±10 V measurement range and 24 bits of resolution at a 50 kS/s sample rate. The NI-9252 features a number of programmable hardware filters. By choosing the specific Butterworth and comb filters for your application, you can significantly reduce the noise in your system.
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NI-9264, 25 kS/s/ch Simultaneous, ±10 V, 16-Channel C Series Voltage Output Module
780927-02
25 kS/s/ch Simultaneous, ±10 V, 16-Channel C Series Voltage Output Module - The NI‑9264 is a simultaneously updating analog output module that accommodates higher‑channel‑count systems. Higher density modules conserve chassis space, which leaves room for other measurement types. Each channel has its own digital‑to‑analog converter. The spring-terminal version of the NI‑9264 uses a 36‑position connector for the output channels, and each channel has a ground connection.
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AC-Powered, AC Voltage Monitor, Adjustable
VMA
NAI’s VMA is a field-adjustable, AC-Powered, AC Voltage Monitor used to monitor voltage characteristics of single- or three-phase power lines. This allows normal operation of system loads when the power-line characteristics are within pre-determined limits.High and low voltage limits, and "pick-up" and "drop-out" time delay are field-adjustable. The VMA voltage monitor is ideally suited for rugged defense and industrial applications.
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NI-9205, ±10 V, 250 kS/s, 16-Bit, 32-Channel C Series Voltage Input Module
785184-01
±10 V, 250 kS/s, 16-Bit, 32-Channel C Series Voltage Input Module - The NI‑9205 performs single-ended or differential analog inputs, with four programmable input ranges for each. It is an effective combination of channel count and speed at a low price for an economical multifunction system. You can choose from four programmable input ranges. To protect against signal transients, the NI‑9205 includes up to 60 V of overvoltage protection between input channels and common. In addition, the NI‑9205 also includes a channel-to-earth ground double isolation barrier for safety, noise immunity, and high common-mode voltage range. It is rated for 1,000 Vrms transient overvoltage protection.
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Preamplifiers
LNA Series
Low noise amplifier with 12.5 dB of gain covering the nominal frequency range 1 MHz to 3 GHz and can be used in the range from 200 kHz to 4 GHz. With its high gain and low noise figure, it will significantly increase the sensitivity of virtually all spectrum analyzers and other RF measuring instruments. All measuring instruments have a 'noise figure', which is a measure of how good the instrument is at measuring low level signals, the lower this figure, the better, although the lowest signal level will still be governed by the measurement bandwidth. A typical spectrum analyzer may have a noise figure of 20 dB or more, whereas a typical receiver may have a noise figure of 10 dB. The preamplifier has a noise figure of typically 4 dB, significantly enhancing the low level performance of such instruments, enabling signals that were previously masked by noise to be seen.
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NI-9239 , ±10 V, 50 kS/s/ch, 24-Bit, Simultaneous Input, 4-Channel C Series Voltage Input Module
780181-01
±10 V, 50 kS/s/ch, 24-Bit, Simultaneous Input, 4-Channel C Series Voltage Input Module - The NI‑9239 performs differential analog input. With channel‑to‑channel isolation, your entire system, including the device under test, is protected from harmful voltage spikes up to the isolation rating. In addition to safety, isolation eliminates measurement errors caused by ground loops because the front end of the module is floating. Designed for both speed and accuracy, the NI‑9239 is an effective general-purpose analog module because of its resolution, sample rate, and input range.
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External Pre-amplifiers
Although all Spectrum A/D cards have a very powerful input section with a highly configurable input amplifier and a variety of input ranges it is sometimes necessary to have additional external amplifiers if the signal to acquire has an extremely low level. Spectrum offers a range of perfectly matching external amplifiers to cover such cases. These powerful amplifiers have been rated using the Spectrum cards and offer best performance together with high amplification rates.The amplifiers are simply connected between the signal source and the Spectrum A/D card input and can be manually switched between different settings using small lever keys. All amplifiers allow the offset compensation by using an adjustable screw.
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Current Preamplifier
1641
The Model 1641 Current Preamplifier is a simple low cost wideband gain block for use with photomultipliers
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NI-9201, ±10 V, 500 kS/s, 12-Bit, 8-Channel C Series Voltage Input Module
779372-01
±10 V, 500 kS/s, 12-Bit, 8-Channel C Series Voltage Input Module - The NI‑9201 is an effective combination of channel count and speed at a low price for an economical multifunction system. The module features up to 100 V of overvoltage protection for errant signal connection or unexpected signals to the individual channels.
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Microphone Preamplifier
426B03
Performance: Nominal Microphone Diameter:1/4"Frequency Response: (0.1 dB) (re 1 kHz)5 to 126000 Hz5 to 126000 Hz Frequency Response
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Pre-Amplifiers
MPR, MDA series
MPR, MDR series provides low noise, high gain and wideband to improve dynamic range for emission testing. We also offer customized model for variable requirments.. Example 30M-1000MHz with band-pass filter Amprifier unit for connecting antenna directly
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DC-Powered, AC Voltage Monitor
VAD/VQD
NAI’s VAD and VQD are DC-Powered, AC Voltage Monitors used to monitor voltage characteristics of single- or three-phase power lines. This allows normal operation of system loads when the power-line characteristics are within pre-determined limits. These voltage monitors are ideally suited for rugged defense and industrial applications.
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NI-9221, ±60 V, 800 kS/s, 12-Bit, 8-Channel C Series Voltage Input Module
779373-01
±60 V, 800 kS/s, 12-Bit, 8-Channel C Series Voltage Input Module - The NI‑9221 performs single-ended analog input. The wider voltage range makes this module well suited for industrial-level, automotive, or even smaller-cell battery measurements. There are two connector options for the NI‑9221: a 36‑position spring‑terminal connector and a 37-position D‑SUB connector.
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NI-9225, 300 Vrms, 50 kS/s/ch, 24-Bit, Simultaneous Input, 3-Channel C Series Voltage Input Module
780159-02
300 Vrms, 50 kS/s/ch, 24-Bit, Simultaneous Input, 3-Channel C Series Voltage Input Module - The NI‑9225 performs differential analog input. The wide measurement range is well suited for high-voltage measurement applications such as power metering, power quality monitoring, motor test, battery stack testing, and fuel cell tests. You can perform transient and harmonic analysis with high-speed simultaneous sampling. In addition, you can prevent ground loops and add safety to a system with 600 Vrms channel‑to‑channel isolation between the three NI‑9225 channels.
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Transformer Preamplifier
SR554
Stanford Research Systems, Inc.
The SR554 is a low-noise, transformer-coupled preamplifier optimized for source impedances between 0.05 Ω and 1 kΩ. With an input noise of only 0.1 nV/√Hz, the SR554 can be used in a wide range of low-noise applications.
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NI-9264, 25 kS/s/ch Simultaneous, ±10 V, 16-Channel C Series Voltage Output Module
785190-02
25 kS/s/ch Simultaneous, ±10 V, 16-Channel C Series Voltage Output Module - The NI‑9264 is a simultaneously updating analog output module that accommodates higher‑channel‑count systems. Higher density modules conserve chassis space, which leaves room for other measurement types. Each channel has its own digital‑to‑analog converter. The spring-terminal version of the NI‑9264 uses a 36‑position connector for the output channels, and each channel has a ground connection.
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NI-9251, 3 Vrms, 102.4 kS/s/ch Simultaneous, 2-Channel C Series Voltage Input Module
783814-01
3 Vrms, 102.4 kS/s/ch Simultaneous, 2-Channel C Series Voltage Input Module - The NI‑9251 with mini XLR is a low-distortion input channel that allows for the high dynamic range measurements necessary to fully test and evaluate modern audio outputs used in most consumer electronic devices. Unlike sound card-based solutions, you can quickly deploy the NI‑9251 to guarantee long-term measurement repeatability and increased test system uptime. To maximize low-noise benefits, the NI‑9251 differential input is provided through a mini‑XLR connector, which delivers a truly balanced input.
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NI-9209 , ±10 V, 500 S/s, 16-Channel C Series Voltage Input Module
785042-01
±10 V, 500 S/s, 16-Channel C Series Voltage Input Module - The NI‑9209 performs single-ended or differential analog input. This module provides 60 VDC CAT I isolation and built-in 50/60 Hz filtering, making it a valuable addition to industrial measurement systems.
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Low Noise Current Preamplifier
SR570
Stanford Research Systems, Inc.
The SR570 is a low-noise current preamplifier capable of current gains as large as 1 pA/V. High gain and bandwidth, low noise, and many convenient features make the SR570 ideal for a variety of photonic, low temperature and other measurements.
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NI-9229, ±60 V, 50 kS/s/ch, 24-Bit, Simultaneous Input, 4-Channel C Series Voltage Module
780180-01
±60 V, 50 kS/s/ch, 24-Bit, Simultaneous Input, 4-Channel C Series Voltage Module - The NI‑9229 performs differential analog input. The NI‑9229 is an effective general-purpose analog module because of its resolution, sample rate, and input range. With channel‑to‑channel isolation, your entire system, including the device under test, is protected from harmful voltage spikes up to the isolation rating. In addition to safety, isolation eliminates measurement errors caused by ground loops because the front end of the module is floating.
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Voltage Testers
Non-Contact Voltage (NCV) tester quickly checks for the presence of voltage in AC powered systems. It can be safely used up to 1000 V AC. When AC voltage is detected, the testo 745 gives indication by flashing of its RED LED tip and buzzing of its internal audible buzzer. You can easily determine the hot and neutral legs of an outlet without time consuming and risky removal of the outlet from the outlet box.
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Voltage Dividers
Measurements International Ltd.
A series of resistors or capacitors which can be tapped at any intermediate point to produce a specific fraction of the voltage applied between its ends.
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Preamplifier
Is designed for the amplification of measuring signals, e.g. weak signals of near field probes with high resolution.
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Voltage Meter
МН32С
The mezzanine module (mezzanine) МН32С is designed to measure instantaneous voltage values over thirty-two differential channels.
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Microphone Preamplifier
426E01
Nominal Microphone Diameter: 1/2 Gain -0.05 dBFrequency Response (0.1 dB) (re 1 kHz)6.3 to 125000 HzFrequency Response (-3 dB) (re1 kHz) Phase Linearity (<1 )32 to 20000 Electrical Noise (A-weight)<2.8 V<2.8 V[1] Output Slew Rate 2 V/S[2]
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Low Noise Pre-Amplifiers
Low Noise Pre-Amplifier and companion external low noise amplifier (LNA) are used to amplify low level microwave signals. The Pre-Amplifier contains an AC/DC power supply, internal low noise amplifier, and a bias tee to source a DC bias voltage on the RF input connector.To overcome cable loss between the test antenna and the Pre-Amplifier assembly, a remote low noise amplifier (LNA) is mounted directly onto the 10 GHz antenna. A bias tee inside the Pre-Amplifier chassis powers the remote LNA through the coax cable interconnecting the pre-amplifier and the 10 GHz test antenna.
