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Standard Resistors
Resistor having a known resistance value.
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Temperature Controlled Air Bath
9300A
Measurements International Ltd.
The model 9300A series of Temperature Controlled Chambers is designed as a convenient and inexpensive way to maintain the temperature of air resistors in the calibration laboratory. It is large enough to house several standard air resistors and features two adjustable shelves to permit easy access to the standards. The shelves are easily removable.
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Automated Resistance Standard
SmartResistor
The SmartResistor combines, into one transportable device, all the items needed to maintain resistance: a set of standard resistors, a controlled temperature bath, a low thermal emf scanner, and measurement data.
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Resistance Thermometry Bridges
By using built-in or external standard resistors, resistance thermometry bridges measure resistance ratios with high accuracy, which are indicative of the temperature, among other things. These instruments are not only used in the field of temperature measurement, but − due to their high accuracy − also in electrical laboratories.
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PCI Standard Programmable Resistor Cards
Pickering's PCI Standard Programmable Resistor Cards include fully programmable resistor and potentiometer cards for applications such as sensor emulation that require fine adjustment with a resolution down to 0.25 Ohm. All of our Programmable Resistor Cards can easily be formed to make Programmable Potentiometers by connecting two channels in series, using the unconnected terminals as the A and B connections and the link between the two channels as the wiper connection.
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Troubleshooting Track Circuit Simulators
14900 Series
The 14900 seriesTrack Simulator features a front panel with standard set up resistors and terminals and electrically conductive model track to simulate a track circuit suitable for instructional and hands-on training purposes. A locked drawer provides additional switches, potentiometers, and controls that allow selective implementation of many faults commonly found in typical track circuits.
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Calibration Baths
Fluke Calibration temperature baths provide optimal temperature environments for “secondary” or “comparison” temperature calibrations. They offer unsurpassed stability and uniformity, a large working volume, and flexibility for performing thermometer calibration on calibrating a variety of temperature sensors. A world-class temperature controller and 30+ years of experience make these the choice of National Metrology Institutes and calibration laboratories worldwide. Fluke Calibration temperature baths include: compact temperature baths; deep-well temperature baths; standard calibration baths; resistor maintenance baths; ice-point baths; bath / temperature controllers.
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Temperature Standards
ITS-90
The defining instruments of the ITS-90 (International Temperature Scale of 1990) are Standard Platinum Resistance Thermometers (SPRTs) and ITS-90 fixed-point cells. SPRTs are calibrated in fixed-point cells to provide the highest possible temperature accuracy. Primary standards offered by Fluke Calibration include: long-stem SPRTs; capsule SPRTs; triple point of water cells; metal fixed-point cells; maintenance baths and maintenance furnaces for fixed-point cells; standard resistors.
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Standard Resistors for Temperature Measurement
Measurements International Ltd.
High Stability, Split Guard Circuit, Internal Temperature Sensor, Custom Values Available, Includes Calibration Data.
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DC Precision Measuring
Precision instruments for calibrating and monitoring. Our line of Precision Bridges, Decade Boxes, Galvanometers, Potentiometers, and standard high precision resistors, allow customers the accuracy and quality demanded in a precision device.
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Precision RTD Simulator
RTD Series
The RTD Series Precision RTD (Resistance Temperature Detector) Simulator provides a very broad-range of absolute resistance values that replace RTD's and thermocouples. Thermocouples present a resistance that depends on the temperature. The RTD simulator effectively replaces an RTD to test, analyze, and calibrate RTD measuring systems. The RTD Series simulator is a precision resistance source with excellent characteristics of accuracy, stability, temperature coefcient, and power coefcient. All these features serve to make it a laboratory resistance standard, exceeded in performance only by stand-alone standard resistors. The special design of the RTD Series provides absolute accuracy, and requires no zero resistance subtraction from any setting Special design of the RTD virtually eliminate zero resistance and switch contact variations, providing the specified absolute accuracy over the entire range.
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Attenuators
The National RF line of attenuators are compact, affordable attenuators which are ideal for insertion between a direction finding antenna and a receiver/transceiver, to aid in the DF process. In addition, they may be used in the laboratory for a low-power, in-line attenuation purposes. The affordable price is achieved by utilizing standard 5% tolerance resistors and commercial hardware. For laboratory purposes, an attenuation versus frequency curve (to 500mMHz) is provided.
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Temperature Calibration
Process Instruments maintains primary temperature standards for the calibration of Standard Platinum Resistance Thermometers. SPRT''s are measured against a Thomas-type Ten Ohm Standard Resistor (a Leeds & Northrup 4211-B), using a Measurements International automated bridge. Primary thermometry points are maintained at the Water, Tin, Zinc and Gallium points.
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PXI Standard Programmable Resistor Modules
Pickering's PXI Standard Programmable Resistor Modules include fully programmable resistor and potentiometer modules for applications such as sensor emulation that require fine adjustment with a resolution down to 0.25 Ohm. All of our Programmable Resistor Modules can easily be formed to make Programmable Potentiometers by connecting two channels in series, using the unconnected terminals as the A and B connections and the link between the two channels as the wiper connection. For applications with more demanding accuracy and resolution requirements, consider our Precision Programmable Resistor Modules .
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Working Standard Resistor
CSR Series
The CSR series has Bulk Metal® Foil resistanceelements, which have the same excellent stability andlow temperature coefficient of resistance as the ASRseries—a precision level that cannot be provided byany other resistance material. In addition, the CSR isdesigned for equal ease of use in the laboratory or onthe production floor. It’s construction is designed to givepriority for portability and workability, being used in airwithout an oil bath.
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Portable Calibrator
MC141
Voltage range from 0 to 750 V DC/AC with uncertainty 0.01% Current range from 0 to 2 A DC/AC with uncertainty 0.02 % Calibrated sinusoidal output signal DC - 1kHz. Set standard resistors from 10 Ohm to 100 MOhm in decade values with uncertainty 0.02 %. TC temperature sensor simulation R, S, B, J, T, E, K, N in range from -250 oC to 1850 oC
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Four Terminal Pair Standard Resistor Set
42030A
The 42030A is a standard resistor set consisting of nine precision resistor standards which range from 1 mΩ to 100 kΩ. These resistors are primarily used for performance tests of Keysight's 4-terminal pair LCR meters and impedance analyzers. Refer to the instrument's operation/service manual for the method of using these standards.
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Decade Resistance Substituter Lab Standard
HARS-LX Series
The HARS-LX substituter is a precision resistance source with excellent characteristics of accuracy, stability, temperature coefficient, and power coefficient. All these features serve to make it a laboratory resistance standard, exceeded in performance only by stand-alone standard resistors.
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Standard Resistors
USR-SF Series
The ultra stable resistive element utilizes new generationstress-free Bulk Metal Foil technology developed byAlpha Electronics with 37 years experience and is basedon using proprietary Nickel Chrome alloy. This results inextremely low temperature coefficients as ±0.05 ppm/°Cat 23°C ±5°C. This performance is unique to AlphaElectronics throughout the world.
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Micro-Ohmmeter Calibration Kit
LOM-530
The LOM-530 is convenient single unit containing a complete set of (5) working standard grade resistors for complete calibration of micro-ohmmeters. The standard resistance values are those used by the LOM-510A Microohmmeter/Milliohmmeter.
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Primary Standard Resistor
ASR Series
The ASR series is an extremely stable standard resistor.Alpha’s Ni/Cr alloy Bulk Metal® Foil technology is usedas the resistive element, providing high stability andlow temperature coefficient. The process of building astandard resistor requires significant experience and agreat degree of skill. Due to our long-term experiencein developing and enhancing ultra stable Bulk Metal®Foil technology, we are able to provide products withconsistency of performance under strict quality control.
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PXI/PXIe 15W Programmable Resistor Module
40-254-015
The 40-254-015 (PXI) and 42-254-015 (PXIe) are programmable resistor modules with 2 channels which can be set between 1Ω and 920Ω with 4Ω resolution The 40-254 range provides a simple solution for applications requiring up to 15W of power handling per channel.
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PCI High Density Pecision Resistor Card, 9-Channel, 2.5Ω to 925Ω
50-298-021
The 50-298-021 is a high density programmable resistor card with 9 channels which can be set between 2.5Ω and 925Ω with 0.25Ω resolution The 50-298 range provides a simple solution for applications requiring accurate simulation of resistive sensors. The 40-298 is available in a variety of resistance ranges and resolution capabilities that meet the needs of most functional test systems.
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PXI Programmable Resistor Module 5x16 Bit, 0 Ohm to 65K Ohm
40-295-021-5/16
The 40-295 is a Programmable Resistor module with up to 18 channels of 8-bit resolution resistor chains in a single 3U PXI module. The flexible architecture allows these modules to also be supplied as 12, 16 or 24-bit resolution versions for applications requiring finer resolution, greater resistance range or higher channel count.
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PCI High Density Pecision Resistor Card, 4-Channel, 2.5Ω To 472Ω
50-298-120
The 50-298-120 is a high density programmable resistor card with 4 channels which can be set between 2.5Ω and 472Ω with 0.125Ω resolution The 50-298 range provides a simple solution for applications requiring accurate simulation of resistive sensors. The 40-298 is available in a variety of resistance ranges and resolution capabilities that meet the needs of most functional test systems. It is particularly well suited to applications such as the testing of engine controllers where resistive sensors provide information on parameters such as temperature.
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PXI High Density Precision Resistor Module, 3-Channel, 4Ω to 5.82MΩ
40-298-152
The 40-298-152 is a high density programmable resistor module with 3 channels which can be set between 4Ω and 5.82MΩ with 0.5Ω resolution The 40-298 range provides a simple solution for applications requiring accurate simulation of resistive sensors. The 40-298 is available in a variety of resistance ranges and resolution capabilities that meet the needs of most functional test systems.
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PXI/PXIe High Density Precision Resistor Module, 9-Channel
40-297A-112
The 40-297A -112 (PXI) and the 42-297A-112 (PXIe) are 9-channel programmable resistors with a range of 1 Ω to 120 Ω. They are part of the 40/42-297A series of high density precision resistor modules and provide a simple solution for applications requiring accurate simulation of resistive sensors.
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PXI/PXIe High Density Precision Resistor Module
42-297A-136
The 40-297A-136 (PXI) and the 42-297A-136 (PXIe) are 4-channel programmable resistors with a range of 2 Ω to 395 kΩ. They are part of the 40/42-297A series of high density precision resistor modules and provide a simple solution for applications requiring accurate simulation of resistive sensors.
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PXI 2.5W Programmable Resistor Module, 4-Channel, 1Ω to 122Ω
40-251-112
The 40-251-112 is a programmable resistor module with 4 channels which can be set between 1Ω and 122Ω with 0.5Ω resolution The 40-251 range provides a simple solution for applications requiring up to 2.5W of power handling per channel. The 40-251 is available in a variety of resistance ranges and resolution capabilities that meet the needs of most functional test systems. Each channel is able to simulate short or open circuit conditions that can be experienced in a system caused by faulty wiring or sensors.
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PXI High Density Precision Resistor Module, 9-Channel, 2Ω to 122Ω
40-298-112
The 40-298-112 is a high density programmable resistor module with 9 channels which can be set between 2Ω and 122Ω with 0.5Ω resolution The 40-298 range provides a simple solution for applications requiring accurate simulation of resistive sensors. The 40-298 is available in a variety of resistance ranges and resolution capabilities that meet the needs of most functional test systems.
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PXI High Density Precision Resistor Module, 6-Channel, 3.5Ω to 201kΩ
40-298-041
The 40-298-041 is a high density programmable resistor module with 6 channels which can be set between 3.5Ω and 201kΩ with 0.25Ω resolution The 40-298 range provides a simple solution for applications requiring accurate simulation of resistive sensors. The 40-298 is available in a variety of resistance ranges and resolution capabilities that meet the needs of most functional test systems.
