AC INSTRUMENTS
Guildline Instruments has been the premier supplier of resistance measurement systems and standards to the world’s national laboratories for nearly half a century. Our broad product line encompasses several models of precision resistance standards optimized for particular applications including AC and DC current shunts, Power analyzers, Amplifiers and Capacitance bridges. Newer products include complete Quantum Hall Resistance systems, automated resistance measurement systems, high current range extenders and precision high current AC Transformers.
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Guildline’s 7220 Asynchronous Power Analyzer is a portable 3 phase AC power measurement instrument, designed for the most demanding field power applications. Innovative, patent pending current sensing technology provides unprecedented current and voltage measurement accuracy and uncertainty. 24 bit A/D conversion technology increases the dynamic range and accuracy of this instrument. Innovative Current Sensing Technology 24 bit Conversion Asynchronous Operation Measures Stationary & Quasi-Stationary Wave Forms Three Phase plus Neutral 50Hz – 60Hz – 400Hz
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Guildline Model 7620 is a very wide band transconductance amplifier. By connecting the output from a stable voltage source to the 7620, it is capable of producing outputs up to 20 amps over a specified frequency range of DC to 100 kHz, and a usable frequency range extending to 1 MHz. Stability Ranges, (6) 200μA to 20A Frequency DC to 1 MHz Compliance 10 volts Guarded output
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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.