{"product_id":"fluke-2456-lem-laboratory-environment-monitor-副本","title":"Fluke 2456-LEM Laboratory Environment Monitor","description":"\u003ch1\u003e\u003cspan style=\"color: rgb(13, 67, 146);\"\u003eOverview\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch2\u003eProduct overview: 2456-LEM Laboratory Environment Monitor\u003c\/h2\u003e\n\u003cdiv id=\"overview-grid\"\u003e\n\u003cdiv id=\"fluke-product-display-overview\"\u003e\n\u003cdiv id=\"overview_content\"\u003e\n\u003cp\u003eThe Laboratory Environment Monitor (LEM) provides the ability to measure barometric pressure, ambient temperature, relative humidity and air density. The LEM transmits these measurements via an RS-232 or RS-485 interface to a PC. The supplied software can then be used to monitor and log all the above parameters for one or up to eight LEMs, simultaneously.\u003c\/p\u003e\n\u003cp\u003eThe supplied software allows the LEM to be used as a stand alone instrument and performs a variety of functions, including various units selection, as well as as well as data logging. The LEM is an ideal replacement to older data loggers, such as mechanical strip chart recorders. The software includes options for logging in intervals of one minute, five minutes or 15 minutes. The space delimited text file keeps file sizes small, while allowing easy insertion into spreadsheet applications for data analysis and graphing. The LEM also provides air density measurement— a critical factor for mass calibration labs to correct for air buoyancy effects.\u003c\/p\u003e\n\u003cp\u003eAnnual recalibration of the LEM is accomplished through the supplied software. Once calibrated, the new coefficients are downloaded to the LEM and stored in non-volatile memory.\u003c\/p\u003e\n\u003cp\u003eIf a barometric pressure accuracy better than 0.04 inHg (1.3 mbar) is required, a variety of digital barometers with an RS-232 interface can be directly connected to the LEM. The LEM will transmit the barometric pressure reading from the external barometer to the PC and LEM software via a single communication link.\u003c\/p\u003e\n\u003cp\u003eThe LEM is compatible with a Ruska Model 2456 piston gauge monitor and WinPrompt® software, which automates the operation of the extensive line of Ruska primary pressure standards. The LEM allows WinPrompt to automatically compensate for air buoyancy effects on the mass set of the piston gauge. The LEM is also compatible with the Model 2465 autofloat gas piston gauge.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch1\u003e\u003cspan style=\"color: rgb(13, 67, 146);\"\u003eSpecial features \u003c\/span\u003e\u003c\/h1\u003e\n\u003cdiv id=\"keyfeature_content\"\u003e\n\u003cul\u003e\n\u003cli\u003eCommunicates via RS-232 or RS-485.\u003c\/li\u003e\n\u003cli\u003eIncluded software displays all parameters in addition to data logging and calibration.\u003c\/li\u003e\n\u003cli\u003ePrecision: Up to 0.1 °C, 0.04 inHg (1.3 mbar), and 3% RH.\u003c\/li\u003e\n\u003cli\u003eIdeal for calibration labs, clean rooms, storage facilities, or use with Ruska piston gauges.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv id=\"fluke-product-display-models\"\u003e\n\u003cdiv id=\"Product-models\"\u003e\n\u003cdiv class=\"ig-product-models\" id=\"ig-product-models\"\u003e\n\u003cdiv class=\"product-model\"\u003e\n\u003ch2\u003eModels: 2456-LEM Laboratory Environment Monitor\u003c\/h2\u003e\n\u003cdiv id=\"fluke-product-display-models\"\u003e\n\u003cdiv id=\"Product-models\"\u003e\n\u003cdiv class=\"ig-product-models\" id=\"ig-product-models\"\u003e\n\u003cdiv class=\"product-model\"\u003e\n\u003cdiv class=\"accordion active\"\u003e\n\u003cdiv class=\"model-name\"\u003e2456-LEM\u003c\/div\u003e\n\u003cdiv id=\"model-3872718\" class=\"model-desc\"\u003e\n\u003cp\u003eLaboratory Environment Monitor\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cspan class=\"sku\"\u003ePart#: 3872718\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"fluke-product-display-models\"\u003e\n\u003cdiv id=\"Product-models\"\u003e\n\u003cdiv class=\"ig-product-models\" id=\"ig-product-models\"\u003e\n\u003cdiv class=\"product-model\"\u003e\n\u003cdiv class=\"pricespider\"\u003e\n\u003cdiv id=\"0\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"fluke-product-display-models\"\u003e\n\u003cdiv id=\"Product-models\"\u003e\n\u003cdiv class=\"ig-product-models\" id=\"ig-product-models\"\u003e\n\u003cdiv class=\"product-model\"\u003e\n\u003cdiv class=\"accordion\"\u003e\n\u003cspan class=\"upc\"\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003ch1\u003e\n\u003cspan style=\"color: rgb(13, 67, 146);\"\u003eSpecification\u003c\/span\u003e\u003cspan style=\"color: rgb(13, 67, 146);\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"clickability\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr class=\"head\"\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eGeneral specifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUnits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e °F or °C\u003cbr\u003e\u003cstrong\u003ePressure:\u003c\/strong\u003e mmHg, cmHg, inHg, kPa, mbar, psi, bar, kg\/cm2\u003cbr\u003e\u003cstrong\u003eHumidity:\u003c\/strong\u003e %RH Air Density: g\/cm3, kg\/m3, lb\/in3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 to 36 V dc, 250 mA maximum (supplied with 115\/230 ac adapter).\u003cbr\u003eOptional power via RS-485.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eOperating\u003c\/strong\u003e: 18 °C to 28 °C (64 °F to 82 °F)\u003cbr\u003e\u003cstrong\u003eStorage:\u003c\/strong\u003e -20 °C to 70 °C (-4 °F to 158 °F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHumidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 % to 95 % RH, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.23 kg (0.5 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e(H x W x D) 133.35 mm x 82.55 mm x 31.75 mm (5.25 in x 3.25 in x 1.25 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRS-232 or RS-485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarm up time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30 minutes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eData update\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOne second\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRange\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18 °C to 28 °C (64 °F to 82 °F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 inHg to 34 inHg (700 mbar to 1150 mbar)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHumidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 to 95 % RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePerformance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrecision\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eTemperature\u003c\/strong\u003e: ± 0.1°C (0.18 °F)\u003cbr\u003e\u003cstrong\u003ePressure:\u003c\/strong\u003e ± 0.04 inHg (1.3 mbar)\u003cbr\u003e\u003cstrong\u003eHumidity:\u003c\/strong\u003e ± 3 % RH Precision is defined as the combined effects of linearity, repeatability and hysteresis.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal uncertainty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e ± 0.5°C (0.9 °F) per year\u003cbr\u003e\u003cstrong\u003ePressure:\u003c\/strong\u003e ± 0.08 inHg (2.7 mbar) per year\u003cbr\u003e\u003cstrong\u003eHumidity:\u003c\/strong\u003e ± 10 % RH per year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003eExpression of accuracy (uncertainty) conforms with the recommendations of the ISO Guide\u003cbr\u003eto the expression of uncertainty in measurement and includes RSS of precision, stability,\u003cbr\u003etemperature effects, and the calibration standard to 2 sigma (95 %).\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSoftware\u003c\/td\u003e\n\u003ctd\u003eRequires Microsoft® Windows® 95 or higher, 1.6 MB of available\u003cbr\u003ehard disk space, 32 MB RAM, RS-232 or RS-485, interface includes\u003cbr\u003eextensive help and system manual includes syntax commands.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv class=\"clickability\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"FLUKE","offers":[{"title":"Default Title","offer_id":56200422850882,"sku":null,"price":2000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0850\/9898\/7842\/files\/Fluke_2456-LEM_Laboratory_Environment_Monitor.png?v=1789703861","url":"https:\/\/antletstech.com\/ru\/products\/fluke-2456-lem-laboratory-environment-monitor-%e5%89%af%e6%9c%ac","provider":"ANTLETS","version":"1.0","type":"link"}