Astro-Med Expands Portable High-Speed Data Recorder Line with 20 Channel Recording System
Astro-Med’s Test & Measurement Product Group has introduced the Dash 20HF, the latest addition to its high frequency data recorder family.
Engineered specifically for long term capture of high frequency data and transient signals, the unit supports recording up to 20 analog channels to an internal hard drive at sample rates of up to 500 kHz and a bandwidth of 100 kHz per channel.
Designed for applications ranging from transient capture to remote troubleshooting in the aerospace, automotive, electric utility, pulp and paper, metal manufacturing, medical and other industrial fields, the Dash 20HF is portable and rugged enough to handle any environment.
The Dash 20HF provides the user with a real-time display and analysis of data. High frequency data captures can be saved directly to hard drive for later review and analysis.
The recorder contains four 250 Vrms isolated inputs, ideal for monitoring high voltage or power signals, and 16 35 Vrms differential channels for monitoring low level signals or inputs from sensors, signal conditioners and other devices. Each channel input can be independently configured and has a dedicated 16 bit A/D converter to assure the most accurate measurement.
The versatile digital signal processing of the Dash 20HF provides a wide variety of data capture filtering capabilities, including low-pass, high-pass, band-pass, RMS and notch filtering. Frequency counter inputs are also included.
The Dash 20HF includes a dedicated, 250 GByte internal hard drive for capturing data and a DVD burner for archiving data. Other features include 1000BaseT Ethernet for data upload and host control along with two USB 2.0 ports for archiving data to external peripherals.
The system is built into a compact (16-inch long by 12.125-inch wide by 6.628-inch tall), light (under 23 lbs), and rugged case for field or lab use. Equipped with a 15-inch diagonal monitor for intuitive touch-screen control and real-time data viewing and analysis, the graphical user interface of the Dash 20HF is optimized for ease of use. Simple menus permit the user to set most parameters using button and checkbox controls.
Operating on either 120 VAC or 240 VAC, the Dash 20HF includes a capacitive backup to ensure proper shutdown without data corruption if power is lost.
Omega Engineering, Inc. Introduces New Magnetic Field Gauss Meter Model: HHG191
The HHG191 Gauss meter represents the latest design in magnetic measuring equipment, allowing measurements up to 2,000 mG to 200 micro-tesla with a basic accuracy of 2.5-percent + 6-digit.
This meter is applied to measuring electromagnetic fields of extremely low frequency (30 Hz to 300 Hz) of electric transmission equipment, microwave ovens, air conditioners, computer monitors, video/audio devices and more. Features include an overload display, low battery indicator and Micro-Tesla and Milli-Gauss display options.
A 9V battery is included with the HHG191. The HHG191 is well suited for air shipment, medical manufacturing and oil industries. Recommended applications include Earth's field vectors, air shipment inspection, mapping and recording field perturbations, magnet classification, analysis of magnetic circuitry and components, magnetic resonance imaging (MRI) and measuring residual fields. This product is CE compliant.
Thermo Fisher Scientific Launches New Sample Position Illuminator Feature for NanoDrop 8000
Thermo Fisher Scientific, Inc., has introduced a Sample Position Illuminator feature for the Thermo Scientific NanoDrop 8000 Spectrophotometer. The NanoDrop 8000 takes full spectrum UV/VIS absorbance measurements of eight 1 ul samples in 20 seconds, allowing researchers to work with greater numbers of samples in less time while providing the overall capabilities and ease of use of the groundbreaking Thermo Scientific NanoDrop 1000 Spectrophotometer.
The new Sample Position Illuminator keeps track of the samples to be measured by lighting up wells from beneath the plate. This helps the user to know which wells to draw from for the next measurement, reducing fatigue and human error. The Sample Position Illuminator is simple to use and is linked to the existing graphical interface in the latest software for the NanoDrop 8000. Prior to measurement, the user selects the samples to be measured from the on-screen position indicator. The Sample Position Illuminator then lights up the corresponding wells that are to be measured.
The user may also take advantage of three unique features when using the new software and accompanying Sample Position Illuminator:
- The Auto Column Advance feature increases throughput by automatically lighting up the next column to be measured.
- The system also allows the user to select single or multiple wells for measurement which are then lit up by the Sample Position Illuminator.
- The user may define measurement limits, such as upper and lower concentrations of an analyte (e.g. 100 ng/ul dsDNA +/- 20 ng/ul). Wells that are determined to be “out of limit” will be identified by both flashing lights under the sample plate and a color code on the plate results summary screen.
As of April 2008, the Sample Position Illuminator and accompanying software is shipped as standard with Thermo Scientific NanoDrop 8000 instruments.
Photo Caption: The Thermo Scientific NanoDrop 8000 takes full spectrum UV/VIS absorbance measurements of eight 1 ul samples in 20 seconds, allowing researchers to work with greater numbers of samples in less time
NI Announces Two Low-Cost PXI Embedded Controllers for Test, Measurement and Control Applications
National Instruments has released two new low-cost embedded controllers – the PXI-8104 and PXI-8183 – that deliver performance for value-based test, measurement and control applications. With these new controllers, engineers and scientists can apply PXI in a variety of new applications across many industries including consumer electronics, automotive, semiconductor, telecommunications and aerospace and defense.
The NI PXI-8104 is an Intel Celeron M 440 processor-based embedded controller for use in PXI and CompactPCI systems. With its 1.86 GHz processor and dual-channel 533 MHz DDR2 memory, the PXI-8104 controller offers 41 percent performance improvement compared to its predecessor, the NI PXI-8195 controller. Engineers can use the new controller to create a PC-based platform that offers an optimal balance of performance and value.
The two-slot embedded controller features an 850 MHz Intel Celeron processor and provides a cost-effective and compact platform when combined with a PXI-compatible chassis.
The PXI-8104 and PXI-8183 controllers are also available in versions that support NI LabVIEW Real-Time and LabWindows/CVI Real-Time software to deliver a flexible, rugged platform for deterministic and real-time measurement and control. Using PXI-based real-time systems, engineers can leverage powerful processors, high-level software development tools and off-the-shelf PXI I/O modules to quickly create and deploy systems in a variety of applications such as hardware-in-the-loop test, rapid control prototyping and industrial measurement and control.
Warner Instruments Releases Dual Channel Differential Electrometer
Warner Instruments has introduced the HiZ-223 Dual Channel Differential Electrometer.
The HiZ-223 is a high input impedance amplifier featuring two small active headstages that allow the first stage of amplification to take place at the electrode site. This amplifier is well suited for measurements using high resistance ion-selective microelectrodes.
The design of the HiZ-223 specifically reduces shunt capacity and minimizes electrical interferences such as electrostatic noise and motion artifacts. The probe housing includes a signal driven guard that further reduces noise and stray capacity.
The HiZ-223 features a probe test port that permits testing of the electrode as well as setting of the probe leakage current (IG). A standby mode is included and should be used when attaching microelectrodes or electrode holders to the probe input.
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