{"product_id":"lunt-pc-usb-pressure-tuner-controller","title":"Lunt PC-USB Pressure Tuner Controller","description":"\u003cdiv class=\"kt-page\"\u003e\n\n\u003cstyle\u003e\n.kt-page{--kt-primary:#030B1C;--kt-accent:#2E7FBF;max-width:1100px;margin:0 auto;font-family:inherit;}\n.kt-page.kt-page--wide{max-width:1600px;}\n.kt-page .kt-hero{display:flex;align-items:center;gap:40px;margin-bottom:40px;}\n.kt-page .kt-hero-copy{flex:1 1 55%;}\n.kt-page .kt-hero-img{flex:1 1 40%;text-align:center;}\n.kt-page .kt-sq{width:100%;max-width:420px;aspect-ratio:1\/1;margin:0 auto;background:#ffffff;border-radius:6px;display:flex;align-items:center;justify-content:center;overflow:hidden;}\n.kt-page .kt-sq img{max-width:92%;max-height:92%;width:auto;height:auto;object-fit:contain;}\n.kt-page .kt-hero-copy h2{font-size:26px;margin-bottom:14px;}\n.kt-page .kt-hero-copy p{font-size:16px;line-height:1.6;margin-bottom:14px;}\n.kt-page .kt-features{display:flex;align-items:flex-start;gap:40px;margin:40px 0;}\n.kt-page .kt-features-copy{flex:1 1 55%;}\n.kt-page .kt-features-img{flex:1 1 40%;text-align:center;}\n.kt-page .kt-section-heading{font-size:21px;display:inline-block;padding-bottom:8px;border-bottom:2px solid var(--kt-accent);margin-bottom:18px;}\n.kt-page .kt-feature-list{list-style:none;margin:0;padding:0;}\n.kt-page .kt-feature-list li{font-size:16px;line-height:1.5;margin-bottom:12px;padding-left:26px;position:relative;}\n.kt-page .kt-feature-list li:before{content:\"\\2713\";color:var(--kt-accent);font-weight:bold;position:absolute;left:0;}\n.kt-page .kt-feature-list b{color:#222;}\n.kt-page .kt-specs-wrap{box-sizing:border-box;}\n.kt-page .kt-specs{display:table !important;width:100% !important;border-collapse:collapse;margin:40px 0;font-size:15px;}\n.kt-page .kt-specs th,.kt-page .kt-specs td{border:2px solid #000;padding:10px 12px;text-align:left;}\n.kt-page .kt-specs th{background:var(--kt-primary) !important;color:#fff !important;font-size:16px;}\n.kt-page .kt-specs tr:nth-child(even){background:#f2f2f2;}\n.kt-page .kt-specs tr:nth-child(odd){background:#ffffff;}\n.kt-page .kt-cta{text-align:center;margin:40px 0;font-size:18px;font-weight:bold;}\n.kt-page .kt-cta-buttons{display:flex;justify-content:center;gap:16px;margin-top:16px;flex-wrap:wrap;}\n.kt-page .kt-cta-buttons a{display:inline-block;padding:12px 26px;border:2px solid var(--kt-primary);border-radius:4px;color:var(--kt-primary);text-decoration:none;font-weight:bold;font-size:15px;transition:all .15s ease;}\n.kt-page .kt-cta-buttons a:hover{background:var(--kt-primary);color:#fff;}\n.kt-page .kt-manuals a{display:block;color:var(--kt-primary);font-weight:bold;font-size:30px;text-align:left;text-decoration:none;margin-bottom:10px;}\n.kt-page .kt-manuals a:hover{color:var(--kt-accent);}\n@media (max-width:768px){\n  .kt-page .kt-hero,.kt-page .kt-features{flex-direction:column;}\n  .kt-page .kt-hero-img img,.kt-page .kt-features-img img{max-width:400px;}\n  .kt-page .kt-hero-copy p,.kt-page .kt-features-copy p{font-size:17px;}\n  .kt-page .kt-cta-buttons{display:grid;grid-template-columns:1fr 1fr;gap:12px;}\n  .kt-page .kt-cta-buttons a:nth-child(3){grid-column:1 \/ span 2;}\n  .kt-page .kt-manuals a{font-size:24px;}\n}\n\u003c\/style\u003e\n\n\u003cdiv class=\"kt-hero\"\u003e\n  \u003cdiv class=\"kt-hero-copy\"\u003e\n    \u003ch2\u003eComputer Controlled Pressure Tuning For Remote Solar Imaging\u003c\/h2\u003e\n        \u003cp\u003eThis PC-USB pressure tuner from Lunt replaces the manual pressure tuning knob with a microprocessor controlled unit you can drive from a computer over USB. A one eighth inch airline runs from the controller to the telescope and can be made any length you need, so the box can sit indoors while the telescope stays out under the sky.\u003c\/p\u003e\n    \u003cp\u003eFront panel control is deliberately simple: one button raises pressure, one lowers it, and a digital readout plus indicator lights show where you are. The unit holds the pressure setpoint to 0.3 PSI and auto compensates for internal pressure drift caused by temperature swings, so your chosen wavelength position stays put through a long session.\u003c\/p\u003e\n    \u003cp\u003eIt runs more than twelve hours on internal batteries and accepts 12 to 15 VDC external power that runs the unit and charges at the same time. Any existing Lunt pressure tuned product can be retrofitted without returning it to the factory. Closed loop feedback of etalon pressure also lets you correlate pressure changes with doppler shifted events.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"kt-hero-img\"\u003e\n    \u003cdiv class=\"kt-sq\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/8273\/7521\/files\/PC-USB_full-front.jpg?v=1743112827\" alt=\"Lunt PC-USB pressure tuner controller front panel with digital display and two control buttons\"\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"kt-features\"\u003e\n  \u003cdiv class=\"kt-features-copy\"\u003e\n    \u003ch3 class=\"kt-section-heading\"\u003eKey Features\u003c\/h3\u003e\n    \u003cul class=\"kt-feature-list\"\u003e\n      \u003cli\u003e\n\u003cb\u003eUSB Control\u003c\/b\u003e - operate the pressure tuner from a computer, which makes remote and automated solar imaging practical.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cb\u003ePoint Three PSI\u003c\/b\u003e - the setpoint is held to 0.3 PSI for very precise control of the etalon tuning position.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cb\u003eTwelve Hour Battery\u003c\/b\u003e - internal batteries run the unit continuously for more than twelve hours away from mains power.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cb\u003eRetrofit Ready\u003c\/b\u003e - fits any existing Lunt pressure tuned product without sending the telescope back to the factory.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cb\u003eTemperature Compensation\u003c\/b\u003e - the controller auto corrects for internal pressure changes driven by significant temperature swings.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cb\u003eClosed Loop Feedback\u003c\/b\u003e - etalon pressure is reported back, so pressure changes can be correlated with doppler shifted events.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"kt-features-img\"\u003e\n    \u003cdiv class=\"kt-sq\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/8273\/7521\/files\/PC-USB_3.png?v=1743112827\" alt=\"Lunt PC-USB pressure tuner controller shown with its airline connection\"\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"kt-specs-wrap\"\u003e\n\u003ctable class=\"kt-specs\"\u003e\n  \u003ctr\u003e\u003cth colspan=\"2\"\u003eSpecifications\u003c\/th\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eMicroprocessor controlled pressure tuner for Lunt pressure tuned etalons\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eModel \/ SKU\u003c\/td\u003e\n\u003ctd\u003ePCUSB; listed on the Lunt storefront as PC-USB\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eControl interface\u003c\/td\u003e\n\u003ctd\u003eUSB from a computer, plus two button up and down control on the unit\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003ePressure accuracy\u003c\/td\u003e\n\u003ctd\u003e0.3 PSI\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eFeedback\u003c\/td\u003e\n\u003ctd\u003edigital display, indicator lights, and closed loop etalon pressure feedback\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eAir line\u003c\/td\u003e\n\u003ctd\u003eone eighth inch airline, installable at any length\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eBattery run time\u003c\/td\u003e\n\u003ctd\u003emore than 12 hours continuous on internal battery\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eExternal power\u003c\/td\u003e\n\u003ctd\u003e12 to 15 VDC input, powers the unit and charges the internal battery at the same time\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMains adapter\u003c\/td\u003e\n\u003ctd\u003e120 or 240 VAC to 12 V adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eRetrofit\u003c\/td\u003e\n\u003ctd\u003efits any existing Lunt PT product via an adapter to the pressure tuner knob\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eStart up behavior\u003c\/td\u003e\n\u003ctd\u003eruns a system vent and ambient pressure set routine on power up\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eSetpoint\u003c\/td\u003e\n\u003ctd\u003efactory or user programmable center wavelength setpoint, held constant at any altitude\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eNot included\u003c\/td\u003e\n\u003ctd\u003eUSB cables for remote use\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eSoftware\u003c\/td\u003e\n\u003ctd\u003eNot published\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eSolar safety\u003c\/td\u003e\n\u003ctd\u003etunes a Lunt solar telescope that already carries its own certified solar filtration\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e5 years from date of purchase, original purchaser, manufacturing and workmanship defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\n\n\u003cp class=\"kt-cta\"\u003e\n  Talk to a Specialist\n  \u003cspan class=\"kt-cta-buttons\"\u003e\n    \u003ca href=\"\/pages\/contact\" style=\"display:inline-block;padding:12px 26px;border:2px solid var(--kt-primary);border-radius:4px;color:var(--kt-primary);text-decoration:none;font-weight:bold;\"\u003eContact Us\u003c\/a\u003e\n    \u003ca href=\"mailto:sales@telescopedepot.com\" style=\"display:inline-block;padding:12px 26px;border:2px solid var(--kt-primary);border-radius:4px;color:var(--kt-primary);text-decoration:none;font-weight:bold;\"\u003eEmail a Specialist\u003c\/a\u003e\n    \u003ca href=\"\/pages\/shipping\" style=\"display:inline-block;padding:12px 26px;border:2px solid var(--kt-primary);border-radius:4px;color:var(--kt-primary);text-decoration:none;font-weight:bold;\"\u003eShipping Info\u003c\/a\u003e\n  \u003c\/span\u003e\n\u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"Lunt Solar Systems","offers":[{"title":"Pressure Tuner Controller with USB","offer_id":53917564305519,"sku":"PCUSB","price":995.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0717\/7968\/0367\/files\/PC-USB_full-front.jpg?v=1785527460","url":"https:\/\/telescopedepot.com\/products\/lunt-pc-usb-pressure-tuner-controller","provider":"Telescope Depot","version":"1.0","type":"link"}