{"id":36840,"date":"2025-07-21T12:06:33","date_gmt":"2025-07-21T12:06:33","guid":{"rendered":"https:\/\/calibration.consulting\/product\/clarke-hess-515-high-accuracy-ac-reference-source\/"},"modified":"2025-07-21T12:06:33","modified_gmt":"2025-07-21T12:06:33","slug":"clarke-hess-515-high-accuracy-ac-reference-source","status":"publish","type":"product","link":"https:\/\/calibration.consulting\/en\/product\/clarke-hess-515-high-accuracy-ac-reference-source\/","title":{"rendered":"Clarke-Hess 515 High Accuracy AC Reference Source"},"content":{"rendered":"

The Clarke-Hess<\/a> 515 is a high-precision AC reference source designed for applications such as LVDT and Synchro\/Resolver transducer excitations. With a voltage accuracy of 0.1%, a resolution of 0.001 V, and a frequency range of 360 Hz to 20 kHz, the 515 provides a stable and reliable reference source for laboratory and industrial applications.<\/p>\n

This instrument features isolated outputs, built-in load detection and a maximum output power of 15 VA, making it ideal for driving inductive loads without output voltage fluctuations.<\/p>\n

High performance and reliability<\/h3>\n

The Clarke Hess 515 delivers a stable and accurate output voltage from 1 Vrms to 120 Vrms with a frequency accuracy of \u00b10.01%. The four-digit voltage resolution and five-digit frequency resolution ensure extremely precise setting and control.
\nBuilt-in load sensing technology ensures that the output impedance is practically zero, so variations in load do not affect the output voltage. This is crucial for applications where a stable reference voltage is essential.<\/p>\n

Versatile functionality and connectivity<\/h3>\n

> Remote sensing<\/strong> eliminates voltage drops over long cables.
\n> Isolated outputs<\/strong> prevent ground loop problems and improve signal integrity.
\n> USB interface standard, optional IEEE-488 (GPIB) interface<\/strong> for external control.
\n> Overload protection<\/strong> prevents damage to the device and connected systems.
\n> Optional high-performance power amplifier mode<\/strong> for applications requiring higher powers.<\/p>\n

Applications Clarke-Hess 515 High Accuracy AC Reference Source<\/strong><\/h3>\n

The Clarke Hess 515 is ideal for:<\/p>\n

> LVDT and Synchro\/Resolver transducer excitations<\/strong>
\n> Precision AC reference sources for measurement and calibration laboratories<\/strong>
\n> Industrial and scientific applications with inductive loads<\/strong>
\n> Research and development in power electronics<\/strong><\/p>\n

Technical specifications<\/h3>\n

> Frequency range:<\/strong> 360 Hz – 20 kHz
\n> Frequency accuracy:<\/strong> \u00b10.01%
\n> Output voltage:<\/strong> 1 Vrms – 120 Vrms
\n> Voltage resolution:<\/strong> 4 digits
\n> Frequency resolution:<\/strong> 5 digits
\n> Amplitude accuracy:<\/strong><\/p>\n

    \n
  • * 1V \u2013 8V: 0,1% + 5 mV (to 5 kHz), 0,2% + 5 mV (to 20 kHz)<\/li>\n
  • * 8V \u2013 16V: 0,1% + 10 mV (to 2 kHz), 0,2% + 10 mV (to 20 kHz)<\/li>\n
  • * 16V \u2013 32V: 0,1% + 20 mV (to 2 kHz), 0,2% + 20 mV (to 20 kHz)<\/li>\n
  • * 32V \u2013 120V: 0,1% + 60 mV (to 2 kHz), 0,2% + 60 mV (to 20 kHz)<\/li>\n<\/ul>\n
      \n
    • > Maximale output current<\/strong>:\n
        \n
      • * 1V \u2013 8V: 1,8 A<\/li>\n
      • * 8V \u2013 16V: 0,94 A<\/li>\n
      • * 16V \u2013 32V: 0,47 A<\/li>\n
      • * 32V \u2013 120V: 0,125 A<\/li>\n<\/ul>\n<\/li>\n
      • > Harmonic distortion<\/strong>: < 0,25%<\/li>\n
      • > Display<\/strong>: Hoge resolution colour display<\/li>\n
      • > Interfaces<\/strong>: USB (standard), IEEE-488 (optional)<\/li>\n
      • > Power supply<\/strong>: 90 \u2013 264 V RMS, 47 \u2013 63 Hz, 30 VA max.<\/li>\n<\/ul>\n

        The Clarke Hess 515 High Accuracy AC Reference Source offers unmatched stability and precision for applications where a reliable AC reference source is required. Contact us for more information or a customised quote.<\/p>\n","protected":false},"excerpt":{"rendered":"

          \n
        • Frequency range: 360 Hz – 20 kHz<\/li>\n
        • Frequency accuracy: \u00b10.01%<\/li>\n
        • Output voltage: 1 Vrms – 120 Vrms<\/li>\n
        • Voltage resolution: 4 digits<\/li>\n
        • Frequency resolution: 5 digits<\/li>\n<\/ul>\n","protected":false},"featured_media":36836,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"none","_seopress_titles_title":"Clarke-Hess 515 High Accuracy AC Reference Source","_seopress_titles_desc":"The Clarke-Hess 515 is a high-precision AC-Reference Source designed for applications such as LVDT and Synchro\/Resolver transducer excitations. With a voltage accuracy of 0.1%, a resolution of 0.001 V","_seopress_robots_index":""},"product_brand":[],"product_cat":[249,250,254],"product_tag":[],"class_list":["post-36840","product","type-product","status-publish","has-post-thumbnail","product_cat-calibration-en","product_cat-electrical-calibration","product_cat-phase","first","instock","shipping-taxable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/calibration.consulting\/en\/wp-json\/wp\/v2\/product\/36840","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/calibration.consulting\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/calibration.consulting\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/calibration.consulting\/en\/wp-json\/wp\/v2\/comments?post=36840"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/calibration.consulting\/en\/wp-json\/wp\/v2\/media\/36836"}],"wp:attachment":[{"href":"https:\/\/calibration.consulting\/en\/wp-json\/wp\/v2\/media?parent=36840"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/calibration.consulting\/en\/wp-json\/wp\/v2\/product_brand?post=36840"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/calibration.consulting\/en\/wp-json\/wp\/v2\/product_cat?post=36840"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/calibration.consulting\/en\/wp-json\/wp\/v2\/product_tag?post=36840"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}