{"product_id":"mastercool-digital-vacuum-gauge","title":"Mastercool 98061 — Digital Vacuum Gauge Thermocouple","description":"\u003ch2\u003eMastercool 98061 — Digital Vacuum Gauge\u003c\/h2\u003e\n\u003cp\u003eAs a professional technician, the assurance of a deep vacuum on a system is imperative. The main problem with many small handheld units is their inaccuracy and durability. Although the thermocouple sensor has been proven to be much more accurate and durable than the thermistor type, the problem has been the inconvenience of a cumbersome tabletop unit. Mastercool is introducing a handheld unit using thermocouple technology. This vacuum gauge has been designed with the technician's field environment in mind, allowing for self-calibration and a sensor that will not be damaged by small mists of oil. The Mastercool unit allows for a target vacuum range to be programmed with a light sensor indicator. Now you have the freedom to continue with your other work and come back to the system once you see the indicator light signalling your target vacuum.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermocouple Sensor:\u003c\/strong\u003e More accurate and durable than thermistor type\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandheld Design:\u003c\/strong\u003e Portable field use without tabletop inconvenience\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Calibration:\u003c\/strong\u003e Ensures accuracy in field conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil Mist Resistant:\u003c\/strong\u003e Sensor not damaged by small oil mists\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgrammable Target Vacuum:\u003c\/strong\u003e Set desired vacuum level\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLight Sensor Indicator:\u003c\/strong\u003e Visual alert when target reached\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands-Free Operation:\u003c\/strong\u003e Continue other work whilst evacuating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpiral Cable:\u003c\/strong\u003e Extends to 6.5 feet (2.6 metres)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Units:\u003c\/strong\u003e Displays in Micron, Torr, mTorr, mmHg, mBar, Pa\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Accuracy:\u003c\/strong\u003e ±5% of reading from 100-1 Micron\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e 98061\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Digital vacuum gauge with thermocouple sensor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResponse Time:\u003c\/strong\u003e 250 mSec\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensor:\u003c\/strong\u003e Thermocouple sensor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensor Cable:\u003c\/strong\u003e Spiral cable extended to 6.5 feet (2.6 metres)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Fitting:\u003c\/strong\u003e 1\/4\" flare female adapter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 32 to 120°F (0 to 45°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e 9V DC battery (AC\/DC adapter optional)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Life:\u003c\/strong\u003e 36 hours\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Battery Indicator:\u003c\/strong\u003e Special icon on LCD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVacuum Units:\u003c\/strong\u003e Micron, Torr, mTorr, mmHg, mBar, Pa\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy Range:*\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eATM-1000 Microns: ±10% of reading\u003c\/li\u003e\n\u003cli\u003e1000-100 Microns: ±7% of reading\u003c\/li\u003e\n\u003cli\u003e100-1 Micron: ±5% of reading\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e Blow-moulded case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.8 kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e 98061\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHS Code:\u003c\/strong\u003e 84189910\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e* Unit accuracy refers to sensor specifications and is based on optimal laboratory conditions. Field operations may greatly deviate from these levels.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eAlso Available\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e98061-C — Digital Vacuum Gauge packaged in a clamshell\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOptional Accessories\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/98061-sensor\"\u003e98061-SENSOR — Replacement Sensor for 98061\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/99334-110\"\u003e99334-110 — 110V AC\/DC Adapter\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/99333\"\u003e99333 — 1\/4\" FL-M x 1\/4\" FL-M x 1\/4\" FL-F Tee\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHVAC\/R system evacuation verification\u003c\/li\u003e\n\u003cli\u003eDeep vacuum measurement\u003c\/li\u003e\n\u003cli\u003eRefrigeration system dehydration\u003c\/li\u003e\n\u003cli\u003eAutomotive A\/C evacuation\u003c\/li\u003e\n\u003cli\u003eCommercial refrigeration installation\u003c\/li\u003e\n\u003cli\u003eHeat pump installation\u003c\/li\u003e\n\u003cli\u003eSystem commissioning\u003c\/li\u003e\n\u003cli\u003ePost-repair evacuation verification\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Thermocouple Technology?\u003c\/h2\u003e\n\u003cp\u003eThermocouple sensors offer significant advantages over thermistor-type sensors:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMore Accurate:\u003c\/strong\u003e Proven superior accuracy in vacuum measurement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMore Durable:\u003c\/strong\u003e Longer service life in demanding field conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil Resistant:\u003c\/strong\u003e Not damaged by small oil mists from vacuum pumps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eField Reliable:\u003c\/strong\u003e Consistent performance in real-world conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional Standard:\u003c\/strong\u003e Preferred technology for accurate vacuum measurement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eBenefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandheld Convenience:\u003c\/strong\u003e Portable design eliminates tabletop unit inconvenience\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgrammable Target:\u003c\/strong\u003e Set desired vacuum level and walk away\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLight Indicator:\u003c\/strong\u003e Visual alert when target vacuum reached\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Calibration:\u003c\/strong\u003e Maintains accuracy in field conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil Mist Resistant:\u003c\/strong\u003e Reliable operation near vacuum pumps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Units:\u003c\/strong\u003e Display in preferred measurement units\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Accuracy:\u003c\/strong\u003e ±5% at deep vacuum levels (100-1 Micron)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong Battery Life:\u003c\/strong\u003e 36 hours of operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Cable:\u003c\/strong\u003e 6.5 feet spiral cable for convenient positioning\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional Quality:\u003c\/strong\u003e Built for daily workshop use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePerfect For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHVAC\/R service technicians\u003c\/li\u003e\n\u003cli\u003eAutomotive A\/C specialists\u003c\/li\u003e\n\u003cli\u003eCommercial refrigeration installers\u003c\/li\u003e\n\u003cli\u003eResidential A\/C installers\u003c\/li\u003e\n\u003cli\u003eWorkshop and service centres\u003c\/li\u003e\n\u003cli\u003eMobile service operations\u003c\/li\u003e\n\u003cli\u003eFleet maintenance facilities\u003c\/li\u003e\n\u003cli\u003eProfessional vacuum verification operations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eConnect 1\/4\" flare fitting to vacuum pump or system\u003c\/li\u003e\n\u003cli\u003ePower on gauge and allow sensor to stabilise\u003c\/li\u003e\n\u003cli\u003eSelect desired vacuum units (Micron, Torr, etc.)\u003c\/li\u003e\n\u003cli\u003eProgramme target vacuum level\u003c\/li\u003e\n\u003cli\u003eStart vacuum pump and begin evacuation\u003c\/li\u003e\n\u003cli\u003eMonitor vacuum level on LCD display\u003c\/li\u003e\n\u003cli\u003eLight indicator will signal when target vacuum reached\u003c\/li\u003e\n\u003cli\u003eVerify vacuum holds (decay test)\u003c\/li\u003e\n\u003cli\u003eIf vacuum holds, system is ready for charging\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eWhy Deep Vacuum Matters\u003c\/h2\u003e\n\u003cp\u003eAchieving deep vacuum (below 500 microns) is essential for modern HVAC\/R systems:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture Removal:\u003c\/strong\u003e Water boils at lower temperatures under vacuum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Protection:\u003c\/strong\u003e Moisture causes acid formation and compressor damage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance:\u003c\/strong\u003e Air and moisture reduce efficiency and cooling capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefrigerant Purity:\u003c\/strong\u003e Non-condensables contaminate refrigerant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty Compliance:\u003c\/strong\u003e Many manufacturers require deep vacuum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional Standard:\u003c\/strong\u003e Industry best practice for quality installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eProgrammable Target Vacuum\u003c\/h2\u003e\n\u003cp\u003eThe 98061's programmable target feature revolutionises evacuation workflow:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet Target:\u003c\/strong\u003e Programme desired vacuum level (e.g., 500 microns)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStart Evacuation:\u003c\/strong\u003e Begin vacuum pump operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContinue Other Work:\u003c\/strong\u003e Technician free for other tasks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLight Indicator Alerts:\u003c\/strong\u003e Visual signal when target reached\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify and Charge:\u003c\/strong\u003e Return to system for decay test and charging\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis hands-free operation significantly improves productivity, allowing technicians to work on other tasks whilst systems evacuate.\u003c\/p\u003e\n\u003ch2\u003eSelf-Calibration Feature\u003c\/h2\u003e\n\u003cp\u003eThe self-calibration capability ensures accuracy in field conditions:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCompensates for environmental variations\u003c\/li\u003e\n\u003cli\u003eMaintains accuracy over time\u003c\/li\u003e\n\u003cli\u003eNo need to return to laboratory for calibration\u003c\/li\u003e\n\u003cli\u003eReliable measurements in real-world conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eMaintenance\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensor:\u003c\/strong\u003e Replace when accuracy decreases (use \u003ca href=\"\/products\/98061-sensor\"\u003e98061-SENSOR replacement sensor\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e Replace 9V battery when low battery icon appears\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC\/DC Adapter:\u003c\/strong\u003e Optional \u003ca href=\"\/products\/99334-110\"\u003e99334-110 adapter\u003c\/a\u003e for continuous operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Store in blow-moulded case when not in use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable:\u003c\/strong\u003e Inspect spiral cable for damage regularly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalibration:\u003c\/strong\u003e Use self-calibration function periodically\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAccuracy Range Explained\u003c\/h2\u003e\n\u003cp\u003eThe 98061 provides different accuracy levels across its measurement range:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eATM-1000 Microns (±10%):\u003c\/strong\u003e Initial evacuation phase\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1000-100 Microns (±7%):\u003c\/strong\u003e Intermediate evacuation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100-1 Micron (±5%):\u003c\/strong\u003e Deep vacuum verification (most critical range)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe highest accuracy at deep vacuum levels (±5%) ensures reliable verification of proper system evacuation.\u003c\/p\u003e\n\u003ch2\u003eSafety Guidelines\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure proper ventilation when evacuating systems\u003c\/li\u003e\n\u003cli\u003eWear safety glasses when working with pressurised systems\u003c\/li\u003e\n\u003cli\u003eFollow proper refrigerant handling procedures\u003c\/li\u003e\n\u003cli\u003eDo not exceed operating temperature range (32-120°F)\u003c\/li\u003e\n\u003cli\u003eReplace battery in safe environment\u003c\/li\u003e\n\u003cli\u003eKeep sensor away from excessive oil contamination\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eProfessional Quality:\u003c\/strong\u003e Mastercool vacuum gauges are built to professional standards for accurate, reliable deep vacuum measurement in demanding HVAC\/R service environments. The 98061 digital vacuum gauge features thermocouple sensor technology, programmable target vacuum with light indicator, self-calibration capability, and handheld convenience for professional evacuation verification operations. Packaged in a blow-moulded case.\u003c\/p\u003e","brand":"Mastercool","offers":[{"title":"Default Title","offer_id":57029567840633,"sku":"98061","price":227.09,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/0158\/3481\/files\/Mastercool-Digital-Vacuum-Gauge-Ryan-Air-Conditioning-Spares-68945189306743.jpg?v=1775889286","url":"https:\/\/www.airconspares.com\/products\/mastercool-digital-vacuum-gauge","provider":"Airconspares.com","version":"1.0","type":"link"}