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Guildline Instruments 9230A series of precision DC current shunts are true 4-terminal devices intended for the ultra-precise measurement of DC current. They are constructed from specially selected elements supported on an insulating base for mechanical stability. These units are covered with a perforated metal shell to allow proper cooling while providing physical protection of the elements. Available Forced Convection option allows improved thermal dissipation and higher current measurements. Models are available for current measurement ranges from 5A up to 12,000 A with custom ranges available. The optional forced air attachment extends the measurement range of the unit by a factor of two.
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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 Instruments model 9910A High Voltage capacitance bridge is an instrument employing the AC Current Comparator principle. This makes the 9910A a unique and versatile instrument for a wide range of applications including cable testing, corona loss measurements, insulator and dielectric testing, inductance measurements, potential transformer error measurements, shunt reactor loss measurements and power transformer testing. Better than 15 ppm accuracy, permanent Direct reading, six-digit measurements of capacitance from 100 pf to 1000 μF Dissipation factor up to 11.1 percent Working Voltage to 50 kV with 9911 Safe to operate, even into megavolt region. Bridge components remain at ground potential.
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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.