中卫市常乐镇第二煤矿
中卫市常乐镇水车兴强煤矿二号井 中卫华夏艾尔德科技股份有限公司 中卫市城区东元镇冯桥煤矿 中卫市城区东元镇沙渠煤矿 中卫市城区东元镇沈桥煤矿 中卫市福鑫冶金铸锻有限公司 中卫市合发冶炼有限责任公司 中卫市金沐森农林种植有限公司 中卫市龙禾伟业物资有限公司 中卫市茂烨冶金有限责任公司 中卫市胜金混凝土制造有限公司 中卫市一盛得货运有限责任公司 中卫市益特镁制品有限公司 中卫市迎水桥镇太伟石料场 中卫市有强钢铁有限公司 中卫市玉润来冷冻食品厂 中卫市镇罗镇五车梁林堂石料厂 中卫市众鑫工贸有限责任公司 中卫市众鑫工贸有限责任公司 中卫县红泉校育川煤矿 宁夏昌大机械有限公司 宁夏昌大粮食机械工贸有限公司 宁夏昌大粮食机械工贸有限公司 宁夏大河机床有限责任公司 宁夏大河机床有限责任公司 宁夏地质矿产技术开发公司土井煤矿 宁夏东方远洋经贸有限公司 宁夏海员种养殖专业合作社 宁夏昊丰伟业钢铁限责任公司 宁夏昊丰伟业钢铁有限责任公司 宁夏昊豫鑫源工贸有限责任公司 宁夏红枸杞保健品有限公司 宁夏红御萃坊生物科技开发有限公司 宁夏金月建设工程服务有限公司 宁夏康达枸杞开发有限公司 宁夏科豪陶瓷有限公司 宁夏杞德源商贸有限公司 宁夏塞漠红杞贸易有限公司 宁夏三元中泰冶金有限公司 宁夏省中卫市盈彩科技有限公司 宁夏盛佳旺鑫冶炼有限公司 宁夏天华工贸公司 宁夏万隆新材料有限公司 宁夏新华实业集团公司 宁夏瀛华镁业有限公司 宁夏禹尧枸杞科技有限公司 宁夏禹尧农产品科技有限公司 宁夏裕隆冶金制品有限公司 宁夏中宁赛马水泥有限公司 宁夏中宁县骨杞草商贸有限公司 宁夏中宁县五星硒砂瓜专业合作社 宁夏中宁县鑫港源枸杞商贸有限公司 宁夏中卫昌达耐磨材料有限公司 宁夏中卫大河机床有限责任公司 宁夏中卫大河机床有限责任公司 宁夏中卫华祥冶炼铸造有限公司 宁夏中卫市昌达耐磨材料有限责任公司 宁夏中卫市丰多邦农贸公司 宁夏中卫市宏星铸造有限公司 宁夏中卫市宏星铸造有限公司 宁夏中卫市全仁水泥制品厂 宁夏中卫市沙坡头建材厂 宁夏中卫市长青化工建材有限公司 宁夏中信矿山机械贸易公司 荣盛超级市场有限责任公司 上海德力西电气宁夏中卫销售公司 跃鑫钢铁有限公司 长和化工有限公司 中国宁夏美丽纸业 中宁县佰润源商贸有限公司 中宁县柏克森商贸有限公司 中宁县北方农产品开发有限公司 中宁县登峰机械有限公司 中宁县登峰机械有限公司 中宁县红源枸杞发展有限公司 中宁县吉鼎生物科技开发有限公司 中宁县佳惠便利店 中宁县嘉诚炉料有限公司 中宁县马道梁铁矿 中宁县塞上杞园商贸有限公司 中宁县盛远磨料制品有限公司 中宁县天沐然商贸有限公司 中宁县通达冶金制品有限公司 中宁县烟洞沟煤矿 中宁县余丁乡大豁子煤矿 中宁县余丁乡大石头井煤矿 中宁县余丁乡煤矿二号井 中宁县余丁乡南天沟煤矿 中卫大河机床有限责任公司 |
A powerful, complete hydraulic pressure calibration system to cover a wide workload Fluke Calibration improved the hydraulic pressure calibration process with the introduction of E-DWT-H electronic deadweight tester. E-DWT-H is an electronic calibrator designed to deliver traditional hydraulic deadweight tester performance with digital measurement features and convenience. Some improvements offered by E-DWT-H include: · No weights to load and unload, transport or send out for calibration · Provides real-time pressure indication with no need to know and correct for local gravity or ambient temperature · No piston-cylinder changes · No significant sensitivity to level or vibration · Able to set and read any pressure value exactly, no minimum increment limited by smallest available masses; perfect for applications that require setting a nominal pressure precisely on the device under test and measuring it, such as analog gauge calibration · Operates in any unit of measure, switching easily from one unit to the next The E-DWT-H is at home in metrology and calibration labs, on the production floor or in the field. It can operate with a wide selection of test mediums, including Sebacate calibration fluid, mineral oil, water and other liquids. ± 0.02 % of reading total one-year measurement uncertainty rivals the best laboratory deadweight testers. The E-DWT-H is used in the lab or instrument shop or can be taken into the field for performing in-situ calibrations and tests. This hydraulic pressure calibration system combines a high performance electronic reference pressure monitor and manually operated pressure generation and control hardware in a single, compact and rugged package. E-DWT-H offers the ease of use and precision of continuous, real time electronic pressure measurement with the simple and direct pressure control of high quality manual pressure hardware. E-DWT is named “electronic deadweight tester” because it is intended as a lightweight and easy to use, modern alternative to conventional piston-cylinder and weight based deadweight testers. The E-DWT’s electronic reference pressure monitor is a special version of RPM4, designated RPM4-E-DWT. RPM4-E-DWT can be configured with one or two high precision quartz reference pressure transducers (Q-RPTs) with ranges from 7 MPa (1 000 psi) to 200 MPa (30 000 psi). The RPM4-E-DWT is controlled locally by the operator using its front panel display, keypad and optional foot pedal or remotely by a computer using ASCII character command strings over its RS-232 interface. RPM4-E-DWT uses an AutoRange feature to automatically select the most appropriate Q-RPT and to optimize the E-DWT-H setup to cover the desired range of operation. When two Q-RPTs are included, a half-turn valve isolates and protects the Lo Q-RPT from high pressure when the Hi Q-RPT is in use. Visual and audible indicators assist the operator in setting the shut off valve correctly. The E-DWT-H includes the hardware necessary to fill and prime the system under test and generate and precisely adjust pressure up to 200 MPa (30 000 psi). The E-DWT-H can be powered with an optional battery/charger pack for use in locations where AC power is not readily available. High performance calibration made simple Fluke Calibration electronic deadweight tester kits feature E-DWT-H configurations combined with the accessories needed for a complete calibration system. Model 6531 options feature E-DWT-H configurations with a single quartz reference pressure transducer (Q-RPT) to offer percent of reading performance from 10 % to 100 % of device full scale. Model 6532 options feature an additional Q-RPT to maximize workload coverage, with percent of reading performance from 1 % to 100 % of device full scale. An included vacuum fill kit allows the E-DWT to be filled with your choice of compatible fluid, while eliminating problematic air pockets from the test circuit. Also included is a test station adapter to mount just about any pressure device to be tested without using PTFE tape or wrenches. 6531 and 6532 kits provide all you need to perform high level hydraulic pressure calibration right out of the box. · Pressure ranges available to 200 MPa (30,000 psi) · ± 0.02 % of reading total one-year accuracy, 0.025 % for two years · Low torque variable volume allows for pressure generation and control up to 200 MPa (30,000 psi) with minimal physical effort · Built-in priming system to fill system with test fluid and purge unwanted air to assure smooth operation · Unique test port design eliminates the need for PTFE tape or wrenches. Adapters included for 1/8 in, 1/4 in, 3/8 in and 1/2 in NPT, 1/8 in, 1/4 in, 3/8 in and 1/2 in BSP, M20 x 1.5 and M14 x 1.5 · Compatible with a wide range of liquids, including water. Vacuum fill kit included to fill the E-DWT with any compatible test medium · AutoTest™, AutoRange, ready/not ready indicator, onboard data capture and storage, overpressure alarm, RS-232 remote interface and other advanced features to simplify testing, improve safety and prevent calibration errors and damage to equipment · Optional foot switch accessory allows hands-free data collection when running AutoTests · Rechargeable battery pack and transport case options for field operation
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1. Combined linearity, hysteresis, and
repeatability. Precision does not include stability or calibration reference
uncertainty.
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