{"title":"Resistance Measurement","description":"\u003cp class=\"tbk__subtitle\"\u003ePrecision resistance measurement equipment for a range of applications. Specialist units measure down to fractions of a micro-ohm with high accuracy\u003c\/p\u003e","products":[{"product_id":"mo-5892-1a-portable-digital-micro-ohmmeter-mo-5892-1a-portable-digital-micro-ohmmeter","title":"MO-5892-1A Portable Digital Micro-ohmmeter","description":"\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eMO-5892-1A\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edigital low resistance ohmmeter is a portable, microprocessor-controlled instrument used to accurately measure resistances of contacts, switches, transformers and motor windings, etc., using test currents from 1 mA up to 1 A.\u003c\/p\u003e\n\u003cp\u003eIt uses the Kelvin-type (4-terminals) measurement principle, thus eliminating errors caused by lead and contact resistances. Resistance readings are shown in the alphanumeric display with up to a 4½ digit-resolution. It allows to measure resistances of up to 2 kΩ, with resolution of 0.01 mΩ.\u003c\/p\u003e\n\u003cp\u003eMeasurements accuracy is guaranteed by the state-of-the-art system for signal-amplification, offset-free and with long-term stability. The equipment has a serial output (RS232) that allows to collect measured values in a serial printer, notebook, palm-top computer or any data logger in order to register the tests performed. The HOLD function keeps in the display the value measured at a certain time-point. Test current may be adjusted by the operator in every one of the ranges and their values are displayed in analog form (bargraph), making it easy to measure resistances with a significant inductive component. The open circuit output voltage is up to 10 V, depending on the selected test current, reducing the stabilization time for the test current when highly inductive elements (specially transformers windings) are measured. The measurement circuit has an effective protection against voltage peaks originated by those inductances.\u003c\/p\u003e\n\u003cp\u003eThe equipment is housed in a rugged plastic case with a hinged lid and carrying handle. It is a portable, strong, impact resistant and lightweight equipment, suitable to be used in outdoors and under severe weather conditions. It supplies very reliable and accurate measurements both in laboratory and out in the field.\u003c\/p\u003e","brand":"tinsley.co.uk","offers":[{"title":"Default Title","offer_id":57375405605199,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1009\/2088\/5583\/files\/MO-5892-1A_web_sq.jpg?v=1775043926"},{"product_id":"mo-5893-10a-portable-digital-micro-ohmmeter","title":"MO-5893-10A Portable Digital Micro-ohmmeter","description":"\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eMO-5893-10A\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edigital very low resistance ohmmeter uses the Kelvin-type, four-terminals measurement principle, thus eliminating errors caused by lead and contact resistances.\u003c\/p\u003e\n\u003cp\u003eResistance readings are shown in the alphanumeric display with up to a 4½ digit-resolution. It allows to measure resistances of up to 2,000 Ω, with a resolution down to 1 µΩ.\u003c\/p\u003e\n\u003cp\u003eMeasurements accuracy is guaranteed by the state-of-the-art system for signal amplification, offset-free and with long-term stability. The equipment has a USB interface that allows to download the measured values to a computer for their later analysis.\u003c\/p\u003e\n\u003cp\u003eThe open circuit output voltage is of up to 10 V, depending on the selected test current, reducing the stabilization time for the test current when highly inductive elements are measured.\u003c\/p\u003e\n\u003cp\u003eThe measurement circuit has an effective protection against voltage peaks originated by those inductances.\u003c\/p\u003e\n\u003cp\u003eOperation is very simple: Just connect the leads, switch-on the equipment, select the test current and press the start button. After a few seconds (depending on inductance of the element), direct reading appears on the display with the measure unit indication (Ω, mΩ or µΩ). If it is necessary, the display will show messages to help the operator (Low battery, Over range, etc).\u003c\/p\u003e\n\u003cp\u003eThe equipment is housed in a rugged plastic case with a hinged lid and carrying handle. It is a portable, strong, impact resistant and lightweight equipment, suitable to be used in field, under severe weather conditions. It supplies very reliable and accurate measurements both in laboratory and out in the field.\u003c\/p\u003e","brand":"tinsley.co.uk","offers":[{"title":"Default Title","offer_id":57375477137743,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1009\/2088\/5583\/files\/MO-5893-10A.jpg?v=1775044134"},{"product_id":"mo-5893-10at-portable-digital-micro-ohmmeter","title":"MO-5893-10AT Portable Digital Micro-ohmmeter","description":"\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eMO-5893-10AT\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edigital very low resistance ohmmeter uses the Kelvin-type, four-terminals measurement principle, thus eliminating errors caused by lead and contact resistances.\u003c\/p\u003e\n\u003cp\u003eResistance readings are shown in the alphanumeric display with up to a 4½ digit-resolution. It allows to measure resistances of up to 2,000 Ω, with a resolution down to 0.1 µΩ.\u003c\/p\u003e\n\u003cp\u003eMeasurements accuracy is guaranteed by the state-of-the-art system for signal amplification, offset-free and with long-term stability. The equipment has a USB interface that allows to download the measured values to a computer for their later analysis.\u003c\/p\u003e\n\u003cp\u003eThe open circuit output voltage is of up to 10 V, depending on the selected test current, reducing the stabilization time for the test current when highly inductive elements are measured.\u003c\/p\u003e\n\u003cp\u003eThe measurement circuit has an effective protection against voltage peaks originated by those inductances.\u003c\/p\u003e\n\u003cp\u003eOperation is very simple: Just connect the leads, switch-on the equipment, select the test current and press the start button. After a few seconds (depending on inductance of the element), direct reading appears on the display with the measure unit indication (Ω, mΩ or µΩ). If it is necessary, the display will show messages to help the operator (Low battery, Over range, etc).\u003c\/p\u003e\n\u003cp\u003eThe equipment is housed in a rugged plastic case with a hinged lid and carrying handle. It is a portable, strong, impact resistant and lightweight equipment, suitable to be used in field, under severe weather conditions. It supplies very reliable and accurate measurements both in laboratory and out in the field.\u003c\/p\u003e","brand":"tinsley.co.uk","offers":[{"title":"Default Title","offer_id":57375578915151,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1009\/2088\/5583\/files\/MO-5893-10AT.jpg?v=1775044598"},{"product_id":"mo-5898-100a-portable-digital-micro-ohmmeter","title":"MO-5898-100A Portable Digital Micro-ohmmeter","description":"\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eMO-5898-100A\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ehigh current micro-ohmmeter employs the 4 terminals-method to avoid measurement errors caused by test leads and their contact resistances. Resistances readings are shown in the alphanumeric display with up to 4½ digits-resolution. It allows to measure resistances up to 200 Ω, with a resolution of up to 0.1 µΩ.\u003c\/p\u003e\n\u003cp\u003eUsing its internal rechargeable battery, measurements with up to 10 A test current may be carried out without connecting the equipment to mains power. Powered by to mains power, it allows to measure with any test current up to 100 A.\u003c\/p\u003e\n\u003cp\u003eMeasurement accuracy is guaranteed by an state-of-the-arts signals amplification system, offset-free and of high long-term stability.\u003c\/p\u003e\n\u003cp\u003eTest current may be adjusted by the operator in every one of the scales and their values are measured using an analogue indicator (bargraph), making it easy to measure resistances with a significant inductive component, as in the case of big transformers windings.\u003c\/p\u003e\n\u003cp\u003eThe high-current generation system is based on modern technology that allows to significantly decrease both its weight (14 kg) and size. The cabinet is made of plastic material highly resistant to impacts and to environmental challenges.\u003c\/p\u003e\n\u003cp\u003eInternal thermal sensors in all sensitive components avoid any damaged caused to the instrument due to overheating.\u003c\/p\u003e\n\u003cp\u003eThis is a strong but lightweight equipment, and may be easily carried by one person. It is water-resistant and can be used under severe weather conditions offering an excellent performance working both in the laboratory and out in the field.\u003c\/p\u003e","brand":"tinsley.co.uk","offers":[{"title":"Default Title","offer_id":57375657722191,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1009\/2088\/5583\/files\/MO-5898-100A.jpg?v=1775045080"},{"product_id":"mo-5899-100r-portable-digital-micro-ohmmeter","title":"MO-5899-100R Portable Digital Micro-ohmmeter","description":"\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eMO-5899-100R\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ehigh current micro-ohmmeter, uses the methodology of Kelvin (4 terminals) to avoid measurement errors caused by jump leads and their contact resistances.\u003c\/p\u003e\n\u003cp\u003eThe accuracy of the equipment is guaranteed by a last generation signal amplification system, offset and high stability free. The reading is in direct liquid crystal display indicating up to 4 ½ digits.\u003c\/p\u003e\n\u003cp\u003eThe equipment is extremely easy to use and carry, weighing approx. 11 kg. His case is sturdy with protection degree IP54 (with lid closed). Cables and accessories are packed in a suitcase that allows storage and transport safe and comfortable.\u003c\/p\u003e\n\u003cp\u003eIt has data outputs to connect to a printer and to download measurements stored in the internal memory of 50 records for up to 80 readings each, allowing documentation of measured values.\u003c\/p\u003e\n\u003cp\u003eThe system of high current generation is based on a modern technology to reduce weight and size. The plastic enclosure provides high impact resistance and environmental challenges. Internal thermal sensors in all sensitive components in the instrument prevent any damage due to overheating.\u003c\/p\u003e\n\u003cp\u003eThe extended range of ambient operating temperature from -5 °C to 50 °C, allows use this equipment in extreme weather conditions, from the cooler regions to tropical regions, presenting a great performance both in fieldwork and in the laboratory.\u003c\/p\u003e","brand":"tinsley.co.uk","offers":[{"title":"Default Title","offer_id":57375699337551,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1009\/2088\/5583\/files\/MO-5899-100A.jpg?v=1775045334"},{"product_id":"mo-5889-200a-portable-digital-micro-ohmmeter","title":"MO-5889-200A Portable Digital Micro-ohmmeter","description":"\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eMO-5889-200A\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003ehigh-current micro-ohmmeter is a portable, microprocessor-controlled instrument. Has optimized filters and protections for measurements in electrical substations. Can be used to accurately measure very low contact resistances of high voltage circuit-breakers and switches, busbars, etc., with test currents up to 200 A. It employs the 4 terminals-method (U\/I measuring principle) to avoid errors caused by test leads and their contact resistances.\u003c\/p\u003e\n\u003cp\u003eMeasurement accuracy is guaranteed by a state-of-the-arts signal amplification system, offset-free and of high long-term stability. Resistances readings are shown in the alphanumeric display with up to 4½ digits-resolution. It allows to measure resistances up to 20 mΩ, and the best resolution is 0.1 μΩ.\u003c\/p\u003e\n\u003cp\u003eTest current may be adjusted by the operator and his value is measured using an analog indicator (bargraph). It has an internal memory for up to 200 readings. The USB interface may be connected to a computer to download the stored values.\u003c\/p\u003e\n\u003cp\u003eThe high-current generation system is based on modern technology that allows to significantly decrease both its weight (approx. 24.25 lb | 11 kg) and size.\u003c\/p\u003e\n\u003cp\u003eThe cabinet is made of plastic material highly resistant to impacts and to environmental challenges. Internal thermal sensors in all sensitive components avoid any damage caused to the instrument due to overheating.\u003c\/p\u003e\n\u003cp\u003eThis is strong but lightweight equipment, and may be easily carried by one person. It is water-resistant and can be used under severe weather conditions (IP65 with closed lid) offering an excellent performance working both in the laboratory and out in the field.\u003c\/p\u003e","brand":"tinsley.co.uk","offers":[{"title":"Default Title","offer_id":57375748620623,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1009\/2088\/5583\/files\/tinsley_MO-5889-200A.jpg?v=1775045531"},{"product_id":"mo-5898-200a-portable-digital-micro-ohmmeter","title":"MO-5898-200A Portable Digital Micro-ohmmeter","description":"\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eMO-5898-200A\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ehigh current micro-ohmmeter employs the 4 terminals-method to avoid measurement errors caused by test leads and their contact resistances. Resistances readings are shown in the alphanumeric display with up to 4½ digits-resolution. It allows to measure resistances up to 200 Ω, with a resolution of up to 0.1 µΩ.\u003c\/p\u003e\n\u003cp\u003eUsing its internal rechargeable battery, measurements with up to 10 A test current may be carried out without connecting the equipment to mains power. Powered by to mains power, it allows to measure with any test current up to 200 A.\u003c\/p\u003e\n\u003cp\u003eMeasurement accuracy is guaranteed by an state-of-the-arts signals amplification system, offset-free and of high long-term stability.\u003c\/p\u003e\n\u003cp\u003eTest current may be adjusted by the operator in every one of the scales and their values are measured using an analogue indicator (bar graph), making it easy to measure resistances with a significant inductive component, as in the case of big transformers windings.\u003c\/p\u003e\n\u003cp\u003eThe high-current generation system is based on modern technology that allows to significantly decrease both its weight (16 kg) and size. The cabinet is made of plastic material highly resistant to impacts and to environmental challenges.\u003c\/p\u003e\n\u003cp\u003eInternal thermal sensors in all sensitive components avoid any damaged caused to the instrument due to overheating.\u003c\/p\u003e\n\u003cp\u003eThis is a strong but lightweight equipment, and may be easily carried by one person. It is water-resistant and can be used under severe weather conditions offering an excellent performance working both in the laboratory and out in the field.\u003c\/p\u003e","brand":"tinsley.co.uk","offers":[{"title":"Default Title","offer_id":57375790432591,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1009\/2088\/5583\/files\/MO-5898-200A.jpg?v=1775045845"},{"product_id":"mo-589r-200a-portable-digital-micro-ohmmeter","title":"MO-589R-200A Portable Digital Micro-ohmmeter","description":"\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eMO-589R-200A\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ehigh-current micro-ohmmeter is a portable, microprocessor-controlled instrument. With optimized filters and protections for measurements in electrical substations.\u003c\/p\u003e\n\u003cp\u003eCan be used to accurately measure very low contact resistances of high voltage circuit-breakers and switches, busbars, etc, with test currents from 5 A up to 200 A. It employs the 4 terminals-method (U\/I measuring principle) to avoid errors caused by test leads and their contact resistances.\u003c\/p\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eMO-589R-200A\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ehas a cooling system that allows making a large number of consecutive tests without activation of thermal protection. Under normal ambient conditions (77 °F | 25 °C) it can perform up to 30 consecutive tests with duration of 1 minute and 1 minute interval, time usually spent for repositioning the cables in another test point. This is a strong but lightweight equipment, and may be easily carried by one person. It is waterresistant and can be used under severe weather conditions (IP65 with closed lid) offering an excellent performance working both in the laboratory and out in the field.\u003c\/p\u003e","brand":"tinsley.co.uk","offers":[{"title":"Default Title","offer_id":57375820513615,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1009\/2088\/5583\/files\/MO-589R-200A.jpg?v=1775046078"},{"product_id":"standard-reference-resistors","title":"Standard Reference Resistors","description":"\u003cp\u003eThe design of these Standard Resistors is based on work carried out over several years with co-operation of the National Physical laboratory. The design originated with F. J. Wilkins of the N.P.L. and has evolved as the result of many tests on stability and temperature coefficient using both a.c. and d.c. Some of the original design features have been discarded in the interests of simplicity, notably the horns which are no longer considered necessary.\u003c\/p\u003e\n\u003cp\u003eThe aim has been to produce four-terminal Standard Resistors to the highest specification, suitable for a.c. and d.c. work up to a frequency of 1592 Hz. 1 Ohm to 10,000 Ohms. The Resistors are made from a specially selected alloy having a low temperature coefficient mounted in a strain free manner on formers made from material or low dielectric loss but of high mechanical stability. All the connections are welded. Prolonged heat treatment of the elements ensures long term stability and low temperature coefficient of resistance.\u003c\/p\u003e\n\u003cp\u003eThe elements are hermetically sealed in stainless steel containers which are filled with dry oil (Castro! Whitemor WOM14). Provision is made for inserting a thermometer but the resistors are intended to be used in an oil bath which is temperature controlled.\u003c\/p\u003e\n\u003cp\u003eMaximum dissipation for the Resistors is 1 Watt but the highest performance will be obtained with a dissipation of 10 milli-Watts which is the ideal working condition. No harm will occur if the dissipation is increased to 1 watt but self heating will take effect after a few minutes. Since the introduction of these Standard Resistors they have been adopted by National and Major Industrial Standards Laboratories as their primary standards. Information obtained from these laboratories over the past twenty five years indicate their exceptional high stability.\u003c\/p\u003e\n\u003cp\u003eFor example, tests have shown that resistors of this type are stable to within 1 ppm over a period of ten years.\u003c\/p\u003e","brand":"tinsley.co.uk","offers":[{"title":"Default Title","offer_id":57375956107599,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1009\/2088\/5583\/files\/standard_ref_resistor_7ecb6af4-bf2c-4d2c-bc71-0bfbc08982ff.jpg?v=1775046810"},{"product_id":"3218c-and-3218d-one-metre-clamp-unit","title":"3218C and 3218D One Metre Clamp Unit","description":"\u003ch4 class=\"tbk__subtitle\"\u003eDesigned for the resistance measurement of wire, cable or strip metal\u003c\/h4\u003e\n\u003cdiv class=\"tbk__text\"\u003e\n\u003cp\u003e\u003cb\u003eThe Type 3218C is designed for the resistance measurement of wire, cable, or strip metal \u003c\/b\u003e\u003cb\u003eusing a low resistance measuring device (milli or micro-ohmeter such as the Tinsley 5894), \u003c\/b\u003e\u003cb\u003ewhich use a four wire kelvin type measuring system.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe unit consists of a base onto which insulated clamping units are mounted. There are two types of clamping units, a flat type located at the ends of the base for the application of the test current (C1 and C2) and knife clamps mounted on the inside used for the sense signals (P1 and P2) to allow the resistance to be calculated. The distance between the knife clamps is 1 metre.\u003c\/p\u003e\n\u003cp\u003eThe unit is designed to accommodate material up to 25 x 25mm or 25mm diameter. (Modified version available to take 40mm diameter)\u003c\/p\u003e\n\u003c\/div\u003e","brand":"tinsley.co.uk","offers":[{"title":"Default Title","offer_id":57375984091471,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1009\/2088\/5583\/files\/3218C-main-image.jpg?v=1775047079"},{"product_id":"model-mo-5894a-milli-ohmmeter-1uω-2mω","title":"Model MO-5894A milli-ohmmeter 1uΩ - 2MΩ","description":"\u003cp\u003e\u003cspan\u003eMO-5894A is a compact DC resistance milli-ohmmeter with a 4.3″ capacitive touch TFT LCD and 5½-digit display. It offers a measuring range from 1 µΩ to 2 MΩ, a maximum accuracy of 0.05 % and integrated temperature compensation and conversion for reliable results regardless of ambient conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eApplications\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eContact and contact resistance measurement on relays, connectors, conductor tracks\u003c\/li\u003e\n\u003cli\u003eLow-Ω measurement on motor and transformer windings\u003c\/li\u003e\n\u003cli\u003ePCB and solder joint testing in electronics production\u003c\/li\u003e\n\u003cli\u003eTemperature-compensated resistance measurement of thermistors and sensors\u003c\/li\u003e\n\u003cli\u003eInline test systems with handler bin sorting and automatic data recording\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"tinsley.co.uk","offers":[{"title":"Default Title","offer_id":57376128598351,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1009\/2088\/5583\/files\/tinsley_MO-5894A.gif?v=1775048101"},{"product_id":"model-5896c-dual-channel-transformer-micro-ohmmeter-1","title":"Model 5896C Dual Channel Transformer Micro-Ohmmeter","description":"\u003ch2\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eThe advantage of the 5896C is its simplicity of use\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv class=\"tab-content\"\u003e\n\u003cdiv class=\"tab-pane active\" id=\"eluid26cf57b8_1\"\u003e\n\u003cdiv class=\"row tabPaneContainer zn_columns_container zn_content\" data-droplevel=\"1\"\u003e\n\u003cdiv class=\"eluid65d1b830  col-md-12 col-sm-12    zn_sortable_content zn_content\" data-droplevel=\"2\"\u003e\n\u003cdiv class=\"zn_text_box eluidbfe67d6f\"\u003e\n\u003cp\u003eThe Tinsley 5896C is specifically designed to measure\u003cspan style=\"text-decoration: underline;\"\u003e \u003c\/span\u003ethe resistance of highly inductive loads such as transformers, motors and generators. It has a measurement resolution of 0.01µ\u003cspan class=\"style1\"\u003eW \u003c\/span\u003efor the 20µ\u003cspan class=\"style1\"\u003eW \u003c\/span\u003erange and can measure resistances up to 6k\u003cspan class=\"style1\"\u003eW\u003c\/span\u003e. Transformers up to 500 MVA and above can be measured. A specially designed current source is used to quickly saturate the device core and obtain a stable resistance reading in the shortest possible time.\u003c\/p\u003e\n\u003cp\u003eSo that the highest resolution of the reading is always displayed, range selection is performed automatically and therefore is not necessary to be set by the operator.\u003c\/p\u003e\n\u003cp\u003eWhen required, a temperature compensation feature allows the reading to be corrected to the 20°C equivalent value by either entering the actual temperature of the unit under test or by using a PT100 temperature probe. A correction can be selected for either copper or aluminium windings.\u003c\/p\u003e\n\u003cp\u003eWhen used for automatic “Heat Run” tests, measurements are made at preset time intervals and an internal algorithm is used to calculate the resistance at t=0. The transformer is made safe after testing by discharging stored energy into the 5896C attenuation resistor and varistors. Only a negligible residue will remain when the discharge warning light indicates that it is safe to remove the test leads.\u003c\/p\u003e\n\u003cp\u003eThe 5896C uses the four-wire measurement technique to eliminate the effect of the resistance of the test leads. By using the dual inputs of the 5896C it is possible to measure both a low voltage and the high voltage winding of a transformer at the same time. This can greatly reduce the time taken to produce cooling curves with an added advantage that the stability of the low voltage winding measurement can be improved when the high voltage winding is energised by the 5896C at the same time.\u003c\/p\u003e\n\u003cp\u003eThe 5896C can be used to control the transformer tap changer. Therefore automatic measurement is possible with no need to remove the current between each tap change. During switching the inputs of the instrument are protected to avoid damage that could occur should a tap changer prove to be faulty during testing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"tinsley.co.uk","offers":[{"title":"Default Title","offer_id":57376619757903,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1009\/2088\/5583\/files\/tinsley_5896C_1.jpg?v=1775050743"},{"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"},{"product_id":"kl-series-kelvin-test-lead-sets","title":"KL Series - Kelvin Test Lead Sets","description":"\u003ch4 class=\"tbk__subtitle\"\u003eFor use with Digital Low Resistance Ohmmeters\u003c\/h4\u003e\n\u003cdiv class=\"tbk__text\"\u003e\n\u003cp\u003e\u003cb\u003eTinsley KL series kelvin lead sets are for use with 4 wire Digital Low Resistance Ohmmeters \u003c\/b\u003e\u003cb\u003e(DLRO’s) requiring test leads that allow the easy connection of current and voltage sense \u003c\/b\u003e\u003cb\u003eleads to the test subject. This is achieved using only two connecters, allowing accurate low \u003c\/b\u003e\u003cb\u003e(m\/μ Ohm) resistance measurements to be made.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eTinsley has developed a series of hardwearing quality test leads with Kelvin Alligator Clips and ‘C’ - Clamps in various lengths suitable for heavy duty use to make DLRO measurement connections easier.\u003c\/p\u003e\n\u003cp\u003eAdaptions and connections can be accommodated for client special requirements.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"tinsley.co.uk","offers":[{"title":"Default Title","offer_id":57430653108559,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1009\/2088\/5583\/files\/KL_series_kelvin-test-leads.jpg?v=1775753307"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1009\/2088\/5583\/collections\/resistor.png?v=1775650166","url":"https:\/\/tinsley.co.uk\/collections\/resistance-measurement.oembed?page=2","provider":"Tinsley Instrumentation Ltd","version":"1.0","type":"link"}