Resistance Standards

Technel represents Guildline Instruments one of the world’s premier manufacturers of resistance metrology instrumentation. Guildline produces standard resistors of different accuracy levels to meet any resistance measurement application from bench top instrumentation to the most demanding national metrology laboratories. Products include 4-terminal decade box standards and RTD simulators, precision air and oil based resistors and ultra high-value resistance standards up to 10 Peta ohms. Guildline also manufactures precision air and liquid baths to alleviate temperature effects on resistance measurements providing the best possible environmental control and reduced uncertainty. The latest product for the ultimate in resistance measurement is the Model 6625A-QHR, a complete quantum Hall resistance turn-key system which includes a Quantum Hall semiconducting device maintained at 1.5 Kelvin with a He-4 refrigerator within a high magnetic field produced by a superconducting magnet. Under these conditions the Quantum Hall plateaus of resistance are easily obtained providing turn-key measurements of resistance devices at any point within the measurement range of 10 mΩ to 100 kΩ.

 

  • Guildline Instruments 5030 series of precision air baths provide uniform constant temperature stable to 0.03°C over 24 hrs. With the improved temperature coefficients of Guildline products, these high quality air baths are an excellent alternative to traditional oil baths for environmental control.These baths have a range of 15°C to 50°C and a cooling capacity to 6°C below ambient. The enclosure is also fully EMI shielded.Two circulation fans provide excellent circulation plus a measure of redundancy. Unlike liquid baths, there are no expensive supplies to replenish, and operation is tidy and contained. This high quality unit can be operated on a bench or free-standing.
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  • The 5600 series of fluid bath is a new design to meet the performance required by Metrology Labs and Oceanography applications. The 5600 provides uniform constant fluid temperature over a range from -5C to + 55C. It can be used with oil, water, salt water or other liquids. Temperature stability as low as +/- 0015K with oil! These convenient sizes of 50L, 75L, or 100L, are constructed of fiberglass with proprietary EMI shielding! Fully automation via Windows based tablet with touch screen!
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  • Guildline Instruments 9340 series of precision DC Resistance Standards are a complete family of easy to use resistance standards offering the best combination of highest accuracy and widest range commercially available. There are 5 standard types available from 3 dial to 7 dial. The smallest increment offered is 10 mΩ full-scale total resistance available is just over 10 TΩ full-scale resistance values in the range are available in all the dial sizes. Accuracy of the 9340 Decade Resistance Boxes is better than ± 0.01% from mid range of 1Ω to 10MΩ steps. This means Guildline decade boxes are over 20 times more accurate than most competitors’ floor specifications.
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  • Guildline models 7334, 9334, 9336, and 9337 are standard resistors stabilized for use in air at room temperature. These unique standards provide the accuracy levels you require without the need for messy oil baths or long wait times for the instrument to reach steady state. Available in numerous standard ranges from 1μΩ to 100 GΩ and custom ranges to 10 PΩ. Model 7334 is also acceptable for use an an AC standard. Model 9334 is available in direct plug-in models for calibration of most popular high-accuracy MultiMeters.
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  • Guildline Instruments GL 1010 Series of Resistance Standards are designed as very high stability calibration laboratory transfer standards. This is an exact ESI SR1010 Series replacement. It features transfer accuracy better than 1 ppm! There are six models available with decade values from 0.1 Ω to 1MΩ!
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  • Guildline Instruments GL 1050 Series of Resistance Transfer Standards are designed as very high stability calibration laboratory transfer standards. This is a very high quality laboratory standard with same operation, specifications and layout of the original ESI design.  It features high transfer accuracy better than 2 ppm! There are two models with decade values from 1 MΩ/step and 10 MΩ/step. The resistance transfers from 100 kΩ to 110 MΩ.
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  • Guildline models 6634A and 6636 are temperature stabilized standard resistors. These rack-mountable units provide the ultimate in stability using Guildline’s proprietary EMI-shielded thermal chamber. Front and Rear terminal units are available with your choice of connectors. Available in numerous standard ranges from 0.1Ω to 100 TΩ, custom ranges are also available.
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