{"product_id":"model-5898-portable-200a-precision-micro-ohmmeter-1","title":"Model 5898 Portable 200A Precision Micro-Ohmmeter","description":"\u003cp data-start=\"0\" data-end=\"704\"\u003eThe Tinsley 5898 is a highly accurate, mains or battery-powered portable 200A micro-ohmmeter designed for precise low-resistance measurements in both laboratory and field environments. Utilising a four-terminal measurement technique to eliminate lead resistance effects, it achieves a basic accuracy of 0.2% across a wide measurement range from 0.1 µΩ to 6 Ω. The instrument features six selectable ranges, each offering high or low current options (except the lowest range fixed at 200A), with selectable positive or negative current and automatic reversal to minimise thermal EMF errors. Its pulsed 200A test current operates at approximately 10% duty cycle, with continuous display of measured values.\u003c\/p\u003e\n\u003cp data-start=\"706\" data-end=\"1381\" data-is-last-node=\"\" data-is-only-node=\"\"\u003ePowered by two internal rechargeable sealed lead-acid batteries, the unit provides up to 8 hours of field operation, supported by a built-in charger compatible with 115V or 230V mains supplies and clear charge status indicators. A standard RS232 interface enables data printing or downloading stored measurements. The 4-digit, 6000-count LED display offers high visibility with 20mm digits and a resolution of 0.015% of full scale. Housed in a rugged, sealed ABS case (460 × 380 × 160 mm) and weighing approximately 20 kg, the Tinsley 5898 is built for durability. Each unit is supplied with a Tinsley in-house calibration certificate traceable to National Standards via NPL.\u003c\/p\u003e","brand":"tinsley.co.uk","offers":[{"title":"Default Title","offer_id":57376857719119,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1009\/2088\/5583\/files\/5898_new_2.jpg?v=1775052099","url":"https:\/\/tinsley.co.uk\/products\/model-5898-portable-200a-precision-micro-ohmmeter-1","provider":"Tinsley Instrumentation Ltd","version":"1.0","type":"link"}