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Single-Phase Transformer Winding Resistance Meters
RMO-TD Series
Using the most advanced switch-mode technology available today, the RMO-TD series is ideal for winding resistance measurements of inductive objects. Transformer resistance meters and tap changer analyzers are perfect for testing:transformer windings (power transformers, distribution, autotransformers),all types of tap changers,generators,electrical motors,high-current busbar joints,cable splices,and welding joints.In addition, transformer demagnetization can also be done with all RMO-TD instruments.The RMO-TD series contains 3 models, with maximal test currents from 25 A (RMO25TD) to 60 A (RMO60TD).The three independent voltage sense channels enable testing of three windings in series. This enables measurements of winding resistance in every tap position of an on-load tap changer without discharging between the tests.All RMO-TD transformer resistance meters have a built-in tap changer control unit. It enables remote control of on-load tap changer (OLTC) directly from the device. In order to make the most out of this feature, DV-Win software is included which can be programmed to do everything automatically – running winding resistance tests and changing OLTC tap positions.The DV-Win software also enables control and observation of the test process, as well as saving and analyzing the results on a PC. It provides a test report, arranged in a selectable form as an Excel spreadsheet, PDF, Word, or ASCII format. Additionally, DV-Win measures and calculates the OLTC transition time, the ripple and the winding resistance for each tap changing operation. The software can also perform the calculations necessary for the “Heat Run” test.All results can be exported in the report format.
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ScanBridge
JT 2154
The JT 2154 is an experiment board based on National Semiconductor’s STA111 device, aimed at users looking to utilise addressable bridge/multiplexors within their designs, and thus set-up ‘system level’ JTAG access. The unit can also be used in semi-permanent installations to expand the TAP (Test Access Port) count on JTAG Technologies controllers in order to address highly segmented designs. Built-in support for ScanBridge-type devices within ProVision allows easy set-up of TAP assignments and device addressing.
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Filtering Network TAPs
Filtering network TAPs allow you to filter out the packets and traffic that is not needed by the tool to perform its function. Filtering ensures that monitoring ports do not become oversubscribed with unneeded data. Filtering TAPs are purpose-built hardware devices that let you see every bit, byte and packet.®
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Network Packet Brokers
NPB
A Network Packet Broker (NPB) is a device that optimizes the flow of traffic between TAP and SPAN connections and network monitoring, security and acceleration tools. By maintaining a many-to-many (M:M) port mapping of network ports to monitoring ports, they can direct network traffic efficiently, and filters can be applied to optimize bandwidth usage on the network. This also means that the performance of out-of-band tools increases as they receive only actionable data.
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Back Pressure Tester
MDBPT2
Quickly test for back pressure and identify clogged or obstructed catalytic converters. Three stage adapter (18mm-12mm) for accessing O2 sensor ports or (standard 1/4-20) self tap access anywhere. Adapter flange for common Toyota style O2 sensors.
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Transformer On-Load Tap-Changer Tester
HTBYC-3000 / 256
Wuhan Huatian Electric Power Automation Co., Ltd.
It is mainly used for measuring the transition waveform, transition time, transient resistance of transformer on-load tap changer, three-phase synchronism, etc.
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PXIe-8521, 4-Port, 100BASE-T1 PXI Automotive Ethernet Interface Module
786771-01
PXIe, 4-Port, 100BASE-T1 PXI Automotive Ethernet Interface Module - The PXIe-8521 is a 100BASE-T1 unshielded twisted pair (UTP) Automotive Ethernet interface for developing applications with the NI‑XNET driver. The PXIe-8521 is ideal for developing applications that require … Automotive Ethernet to test and validate automotive electronic control units (ECUs). The interface provides up to four independent endpoints or up to two network terminal access points (TAPs). It features onboard hardware timestamping and can act as up to four separate 802.1AS masters or slaves, which allows it to synchronize with an external network as well as the rest of a PXI system. The PXIe-8521 also provides LEDs on the front panel so that you can monitor the network link and activity.
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TPI With Voltage
NMC''s Digital Tap Position indicator with Voltage Display, type: TX-202, is used to indicate the Tap Position of the Power Transformer with On Load Tap Changer as well as also indicates the voltage .
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A Serial Data Link Monitor for Windows
Listen
Listen is a Data Link monitor designed to assist debugging & troubleshooting serial communications links. Listen utilizes standard Windows COM port drivers to tap into RS-232 transmit signals for monitoring bi-directional communications between two devices.
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Phoenix Camera Link Frame Grabber (D24-PE1)
AS-PHX-D24CL-PE1
Phoenix-D24CL is a PCI Express board for the acquisition of digital data from a variety of Camera Link sources, including digital frame capture and linescan cameras. It supports all the formats of Base configuration, i.e. single 8- to 16-bit data, through 8-bit RGB, to dual tap 12-bit sources.
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Averaging Pilot Tubes
Meriam manufactures the widest range of Averaging Pitot Tubes for gases, liquids and steam with bi-directional flow capability. Under the Accutube brand name, there are four standard models; Inline, Insertion, Flanged and Wet Tap which can provide a flow solution for your toughest applications. To provide the complete flow solution that meets your specific needs, we can provide DP or Multivariable transmitters from the brand of your choice, or we will recommend the best fit for your application. These transmitters can be installed on the Accutube and configured to your specific flow requirements here at Meriam by qualified technicians, reducing your expense and time .
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Garland vTAP
With organizations becoming increasingly dependent on virtual computing, IT professionals need a solution to eliminate the blind spots inherent to virtual environments. Garland's vTAP is a software solution to address these challenges by providing complete visibility for east-west and inter-VM traffic. When used alongside Garland's physical TAPs, IT teams will have full confidence they are seeing every bit, byte, and packet® across their network.
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Button Load Cell
3000 Series
Button Load Cells are strain gage based transducers with temperature compensation and excellent overall performance. This type provides a range of capacities up to 150 kN or 30 klb with better than ±0.5% (full scale) non-linearity. Three tapped holes are provided on the underside for ease of mounting. Fully welded cover, amplified and digitised versions are available on request.
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Standalone OLTC Event Recorder – OTM-X
The OTM-X is the only standalone recorder using the vibro-acoustic method and motor current testing to detect ONLINE your On-Load Tap Changer’s (OLTC) malfunctions.
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Power Control
Educated Design & Development, Inc.
As a general purpose dual-voltage isolation transformer for step-up (120 to 240 VAC), step-down (240 to 120 VAC), or straight 1:1 isolation (120 to 120 VAC or 240 to 240 VAC). Models with a suffix "UC" are provided with a safety jack for access to the transformer secondary center tap (connected to the transformer center tap only in the 240 VAC output setting). This connection may be used in conjunction with a Dielectric Voltage Withstand test.
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Digital Cable Phasing Meter
PMT3000
Power Measurement Technologies Inc.
The PMT3000 Digital Cable Phasing Meter facilitates the testing, maintenance and installation of electrical distribution systems. Voltage magnitude, phase angle, phase rotation, frequency and tap capacitance measurements are provided in one convenient battery powered hand-held instrument.
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Transformer Turns Ratio Testers
Transformer turns ratio testers from TRT series are DV Power instruments mainly designed for the measurement of power transformer turns ratio. Also, they measure transformer excitation current and phase shift. Special tests, such as automatic vector group detection and magnetic balance, can be performed on three-phase transformers and three-phase autotransformers.All models, except TRT03 series, have a built-in true three-phase power source, which is necessary for testing turns ratio of transformers with special configurations, such as phase-shifting, rectifier, arc-furnace, traction transformers, etc.DV Power turns ratio testers can output various test voltages for different applications. From the extremely low test voltage of 1 V AC that enables turns ratio verification of the majority of current transformers, up to the highest test voltage of 500 V AC that provides the most accurate turns ratio testing of power transformers used in power generation and transmission. By using the external booster, test voltage increases up to 5 kV AC in order to successfully test capacitive voltage transformers.All DV Power turns ratio testers have a built-in tap changer control unit. Because of that, it is possible to control the on-load tap changer (OLTC) directly from the device. In order to make the most out of this feature, the instrument and included DV-Win software can be programmed to do everything automatically – running turns ratio tests, changing OLTC tap positions, and saving results. This option significantly facilitates and shortens the turns ratio testing time.TRT turns ratio testers use the same set of cables as three-phase winding ohmmeter & tap changer analyzers from the TWA series. Consequently, it enables one-time cable setup for performing eight tests:turns ratioexcitation currentphase anglemagnetic balancevector group detectionwinding resistanceon-load tap changer DVtestand demagnetization.
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Current Transformer Tester
CT-T1
The CT-T1 is a microprocessor-based Current Transformer Tester that measures CT excitation current, turns ratio, and winding polarity tests, all without having to switch the leads during testing. The instrument has a fully automatic knee point detection (ASA 10/50, IEEE 30°, IEEE 45°). Although includes 5 low side taps and 1 high side tap.
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Three-Phase Transformer Winding Resistance Meters
TWA Advanced Series
TWA Advanced series is the latest DV Power solution for three-phase transformer winding resistance measurement and tap changer analysis. They are capable of testing six transformer windings with a single cable connection, as well as three-phase automatic transformer demagnetization. It has the option of the automated test mode, where the instrument operates the tap changer without operator input (minimizing the risk of human error) and records winding resistance results based on pre-selected stabilization criteria.The unique DVtest method of tap changer analysis enables checking the moving contacts of on-load tap changers during the transition, measuring the transition time, detecting open circuits, and many other types of faults. It is performed with 0.1 ms sampling rate, together with the measurement of tap changer motor current which detects motor and mechanical issues. A special proprietary algorithm is used for testing tap changers connected through a built-in series (booster) transformer. The DVtest can be performed either on one phase or simultaneously on three phases. It can also be performed together with the winding resistance test in all tap positions.A unique advantage of TWA Advanced instruments is the capability of simultaneously testing the winding resistance of all three phases of a three-phase transformer connected in a YN configuration. This can significantly speed up the testing– for example, it enables the operator to perform 33 measurements instead of 99 on a tap changer with 33 tap positions.TWA500 is equipped with a large 10.1” graphical touch-screen display, while TWA400 has a 7” graphical touch-screen display. Besides making the interface much more user-friendly compared to older winding ohmmeters, it also enables certain test options that were previously available only with DV-Win software. The most important among them are DVtest, tap changer motor current measurement, “Heat Run” test, test templates, and automatic test mode.
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Optical Oxygen Sensors
The analyzer is suitable for direct field installation (NEMA 4X) in hazardous area (Class I, Division 2). The optical fiber sensor platform allows small inline sensors to be installed into sample tubing lines (1/4”), flow cells using NPT fittings, or directly into tanks or process lines using our retractable “hot tap” sensor design. BOS optical oxygen sensors are impervious to typical O2 poisons (H2S) and interferences (combustibles, magnetic, CO2 and H2) with high accuracy and long-term stability measurements without the need for complex or advanced sample conditioning systems. The threaded version of the optical sensor has optional Dual Seal (ANSI/ISA 12.27.01) classification for high pressure applications up to 1200 PSIG (82.7 BAR).
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Maple Syrup Refractometer
PA202X-304-305
The eMaple Digital Maple Syrup Refractometer can be used at the tree tap or tank to measure maple sap, for pre-process monitoring of reverse osmosis, in the sugar shack to determine when to draw maple syrup from the boiler, or during maple syrup bottling and testing. The eMaple Refractometer features two scales and measures from 0 to 85 Brix.
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Remote Intelligent Pod
ScanTAP
The test patterns generated by the PCI-1149.1/Turbo controller are distributed to the target system either directly through ScanTAP 4 and ScanTAP-8 pods. The ScanTAP-4 and ScanTAP-8 pods can apply test vectors and/or ISP patterns to target boards with a variety of JTAG chain topologies. In the simplest case, the ScanTAP-4 and ScanTAP-8 will provide the interface between the PCI-1149.1/Turbo controller and a target system consisting of a single JTAG Test Access Port (TAP). This would be the case where the target system consists of one JTAG chain and its single associated TAP.
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Single-Phase Transformer Winding Resistance Meters
RMO-TT Series
RMO-TT series is perfect for measuring winding resistance of inductive objects such as power and distribution transformers or autotransformers. Additionally, every transformer resistance meter from RMO-TT series can analyze:tap changers,generators,electrical motors,high-current busbar joints,cable splices,and welding joints.Transformer demagnetization can also be performed with all RMO-TT instruments.The series is consisted of 3 models, with maximal test current from 40 A (RMO40TT) to 100 A (RMO100TT). RMO100TT is the only portable transformer resistance meter in the market with 100 A DC output current.The three independent channels enable testing of three windings in series. Consequently, a user can measure winding resistance in every tap position of an on-load tap changer without discharging between the tests.In addition to winding resistance measurement, a user can perform a detailed on-load tap changer analysis by analyzing recorded graphs (10 kHz sampling rate) and by measuring vibrations on an external tap changer tank.All RMO-TT instruments have a built-in tap changer control unit. Because of this, it is possible to remotely control on-load tap changer (OLTC) directly from the device. Also, a user can program DV-Win software to do everything automatically – running winding resistance tests and changing OLTC tap positions.The DV-Win software also enables control and observation of the test process, as well as saving and analyzing the results on a PC. It provides a test report, arranged in a selectable form as an Excel spreadsheet, PDF, Word, or ASCII format. Additionally, DV-Win measures and calculates the OLTC transition time, the ripple and the winding resistance for each tap changing operation. The software can also perform the calculations necessary for the “Heat Run” test.All results can be exported in the report format.
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Boundary-Scan Test / In-System Programming Controller
CPXI-1149.1/Turbo
The CPXI-1149.1/Turbo is a high-performance boundary-scan controller for multi-TAP (Test Access Port) and concurrent JTAG test and in-system programming. When combined with a ScanTAP™ intelligent pod, the CPXI-1149.1/Turbo offers up to 80 MHz clock rates on 4, 8, or 32 TAPs with features such as external write strobe, direct programming, and analog voltage measurement.
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High Speed Device & Flash Programmer
JT 2147 QuadPOD
The JT 2147 QuadPOD high speed device programmer and flash programmer comprises JT 2148 transceiver and four independent, programmable JT 2149 TAP PODs and provides signal conditioning for the DataBlaster series of boundary-scan controllers. Used for gang, parallel, fast testing / Programming of devices.TAP pods can be housed integrally within the transceiver or they can be detached and reconnected via the (optional) one meter extension cable. The JT 2148 transceiver is available in standard (/10) or industrial (/13) variants. The /13 variant includes a SCSI cable splitter to allow system integrators to use flat ribbon cables into the transceiver itself which often simplifies fixture building.A fixture-embedded variant of the JT 2147 is available as part reference JT 2147/FXT. This unit integrates the function of the transceiver and four pod onto a single assembly. This variant can also support 64 DIOS channels and SCIL functions (see more images below for a picture of the JT 2147/FXT).
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Bed of Nails Test Clips
142-2
These multi-purpose test clips are a great way to tap live readings. Unique micro pins cause less damage, should you decide to pierce the wire's insulation.
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CL PX4 Dual Frame Grabber
Xcelera-CL PX4 Dual
Building on the field proven technology and performance of Teledyne DALSA’s X64 frame grabbers the new Xcelera Series leverages the PCI Express (PCIe) platform to bring traditional image acquisition and processing technology to new levels of performance and flexibility. The PCIe host interface is a point to point host interface allowing simultaneous image acquisition and transfer without loading the system bus and involving little intervention from the host CPU. The X64 Xcelera-CL PX4 Dual is a highly versatile PCIe frame grabber capable of acquiring images from two independent Camera Link™ Base cameras and performing image transfers at rates up to 1024MB/s. Its low cost, combined with its ability to support multiple tap configurations from area and linescan monochrome/RGB cameras simultaneously; in addition to its onboard FPGA Bayer decoding and real-time shading correction makes the X64 Xcelera-CL PX4 Dual an ideal solution to a wide variety cost-sensitive applications.
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Transformer Monitoring And AVR
Power transformer is a basic equipment for the Transmission and Distribution Network and requires the application of powerful Monitoring and Control Systems. RTU Dt set is developed and intended for medium and large oil immersed Power Transformers with On-load Tap Changers (OLTC). The set provides safe, reliable, easy to use and cost effective power transformer condition monitoring and Automatic Voltage Regulation (AVR).
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USB Explorer (Two Port)
JT 3705
The JT 3705/USB Explorer is a low-cost two port USB powered boundary-scan controller interface specifically suited for low volume testing and in-system programming of (C)PLDs. Explorer supports two fully-compliant boundary-scan test access ports (TAPs) which can be synchronized for test purposes.
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Development Tools
Automotive Ethernet (BroadR-Reach) development tool for bidirectional media conversion and coupling (Ethernet Tap) from Automotive Ethernet (BroadR-Reach). In addition, the Media Converter BroadR-Reach can diagnose connection quality, status, and errors .
