{"product_id":"ld-series-high-precision-differential-pressure-leak-tester","title":"LD Series - High Precision Differential Pressure Leak Tester","description":"\u003cdiv class=\"fgt-product-desc\"\u003e\n\n  \u003cp class=\"fgt-lead\"\u003eThe LD Series uses differential pressure measurement — comparing the test cavity against a sealed reference volume — to achieve leak sensitivity more than 10 times higher than direct pressure methods. It is the preferred instrument for precision components, medical devices, and parts tested at low pressures where small leaks must be reliably detected.\u003c\/p\u003e\n\n  \u003ch2\u003eHow It Works\u003c\/h2\u003e\n  \u003cp\u003eBoth the test part and an identical reference cavity are pressurized simultaneously. Once isolated, any pressure differential between the two cavities indicates leakage in the test part. Because ambient temperature changes and supply pressure fluctuations affect both cavities equally, their effects are cancelled out — leaving only the signal from actual leakage. This bridge-compensation architecture dramatically improves signal-to-noise ratio without any additional conditioning hardware.\u003c\/p\u003e\n\n  \u003ch2\u003eKey Specifications\u003c\/h2\u003e\n  \u003ctable\u003e\n    \u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTest pressure range\u003c\/td\u003e\n\u003ctd\u003e0 – 1200 kPa\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMaximum resolution\u003c\/td\u003e\n\u003ctd\u003e0.01 kPa (differential signal)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMinimum detectable leak\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 0.01 kPa differential pressure\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSensor accuracy\u003c\/td\u003e\n\u003ctd\u003e0.1% FS\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSensitivity vs. direct pressure\u003c\/td\u003e\n\u003ctd\u003e10× or greater\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePower supply\u003c\/td\u003e\n\u003ctd\u003eAC 220 V ±15%, 50 Hz, 60 W\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e320 × 284 × 300 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e8 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003e7-inch color touchscreen · 4-stage auto test cycle\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\u003ctd\u003eRS-232\/485, USB, Ethernet, PLC I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eAir supply pressure\u003c\/td\u003e\n\u003ctd\u003e0.4 – 0.8 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOperating temperature\u003c\/td\u003e\n\u003ctd\u003e0 – 50 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCycle time\u003c\/td\u003e\n\u003ctd\u003eConfigurable; application-dependent (typical production cycle ≤ 20 s)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOperating humidity\u003c\/td\u003e\n\u003ctd\u003e≤ 95% RH (non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eCE Marked · ISO 9001:2015 · National High-Tech Enterprise\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n  \n  \u003ch2\u003eModel Selection\u003c\/h2\u003e\n  \u003cp\u003eThe LD Series is available in multiple full-scale pressure ranges to match your application. Common configurations cover 0–20 kPa (low-pressure medical) through 0–1200 kPa (automotive and industrial). Specify your required test pressure and leak limit when requesting a quote — our engineers will recommend the correct full-scale range and sensor pairing.\u003c\/p\u003e\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003ePrecision medical soft tubing and catheter sealing\u003c\/li\u003e\n    \u003cli\u003eSurgical clamp heads and drug vial caps\u003c\/li\u003e\n    \u003cli\u003ePrecision bearings and sealed mechanical components\u003c\/li\u003e\n    \u003cli\u003eLow-pressure instruments (10 – 20 kPa test range)\u003c\/li\u003e\n    \u003cli\u003eAny part where direct pressure methods produce unstable or noisy readings\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eWhy LD over LY?\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003e10× higher sensitivity:\u003c\/strong\u003e Detect leaks that are invisible to direct pressure instruments\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNoise rejection built in:\u003c\/strong\u003e Common-mode cancellation removes temperature and supply pressure interference without software correction\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSame footprint:\u003c\/strong\u003e Drop-in replacement for LY on any fixture or production station that requires tighter leak limits\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLow-pressure capable:\u003c\/strong\u003e Reliable detection at test pressures as low as a few kPa\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cp\u003e\u003cem\u003eContact us with your leak specification (Pa or sccm equivalent) and test pressure to confirm whether LY or LD is the correct instrument for your application.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003c\/div\u003e\u003cp\u003e\u003cem\u003eVolume pricing: 2nd unit 10% off · 3rd unit 20% off — contact us for a quote. Fixtures, tooling, and accessories are quoted per project.\u003c\/em\u003e\u003c\/p\u003e","brand":"Figurtech","offers":[{"title":"Default Title","offer_id":48632661016832,"sku":null,"price":5500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/3493\/1456\/files\/front_LD.png?v=1778787932","url":"https:\/\/www.figurtech.com\/products\/ld-series-high-precision-differential-pressure-leak-tester","provider":"Figurtech Leak Test Solution","version":"1.0","type":"link"}