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China, Chinese 100% Original Rosemount 708 Wireless Acoustic Transmitter 708X2PA1I1na00wa3wp5 in Stock1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
TransmitterOther TransmittersTransmitterRosemount 708
Kerui (Weifang) Automation Equipment Co., Ltd.
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Product DescriptionProduct DescriptionRosemount 708 Wireless Acoustic Transmitter In the complex and dynamic realm of industrial process control, accurate and reliable level measurement is a cornerstone of operational efficiency, safety, and product quality. From chemical storage tanks and oil refinery vessels to water treatment facilities and food processing tanks, the ability to monitor liquid or solid levels in real time directly impacts process optimization, inventory management, and compliance with industry regulations. Traditional level measurement solutions, such as guided wave radar or differential pressure transmitters, often face challenges like high installation costs, difficulty in accessing harsh environments, or interference from process media properties.Against this backdrop, the Rosemount 708 Wireless Ultrasonic Transmitter, a flagship product from Emerson Electric Co.—a global pioneer in industrial automation and process control technologies—emerges as a transformative solution. Engineered to address the limitations of conventional level measurement tools, the Rosemount 708 leverages advanced ultrasonic technology, robust wireless communication, and intelligent diagnostic features to deliver precise, reliable, and flexible level monitoring across a wide range of industrial applications. 1. Product Overview and Design Philosophy1.1 Basic Definition and Core PurposeThe Rosemount 708 Wireless Ultrasonic Transmitter is a battery-powered, non-intrusive level measurement device designed to measure the level of liquids, slurries, or solids in tanks, vessels, or bins. Unlike intrusive level measurement technologies that require direct contact with the process media (e.g., float switches or submersible pressure sensors), the Rosemount 708 uses ultrasonic waves to calculate level without physical interaction—making it ideal for applications where media is corrosive, viscous, or contains suspended solids, or where tank access is limited.1.2 Guiding Design PrinciplesThe development of the Rosemount 708 Wireless Ultrasonic Transmitter is underpinned by four key design principles, each tailored to address the unique challenges of industrial level measurement and ensure optimal performance, reliability, and usability.1.2.1 Non-Intrusiveness and Media CompatibilityA central tenet of the Rosemount 708's design is non-intrusiveness, which is critical for applications involving sensitive, corrosive, or abrasive media. By mounting the transducer outside the process media (typically on top of the tank or vessel), the transmitter avoids direct contact with the media—eliminating issues such as sensor corrosion, fouling, or blockages that plague intrusive technologies. This design also makes the Rosemount 708 compatible with a wide range of media, including:Corrosive liquids (e.g., acids, alkalis, solvents in chemical processing)Viscous fluids (e.g., oils, syrups, paints in food and beverage or pharmaceutical industries)Slurries and suspensions (e.g., wastewater, mining slurries, pulp in paper manufacturing)Solids (e.g., grains, powders, pellets in bulk storage applications)1.2.2 Accuracy and Measurement StabilityKey to its accuracy is the high-performance ultrasonic transducer, which emits narrow, focused pulses to minimize interference from tank walls, internal obstructions (e.g., agitators, baffles), or irregular media surfaces. The transducer's high signal-to-noise ratio (SNR) ensures that even weak reflected signals (e.g., from low-reflectivity media like clear liquids or foamy surfaces) are detected and processed accurately.2. Technical Specifications2.2 Ultrasonic Transducer SpecificationsThe transducer is a critical component of the Rosemount 708, and its specifications directly impact measurement performance.Frequency Range: 20 kHz to 80 kHz (varies by model; lower frequencies for longer ranges, higher frequencies for shorter ranges)Transducer Material: PVDF (standard) or PTFE (optional, for enhanced chemical resistance)Beam Angle: 6° to 12° (nominal, depending on frequency; narrower beams for longer ranges to reduce interference)Acoustic Power: <1 W (compliant with international safety standards for ultrasonic devices)Mounting Options: Threaded (NPT or G thread), flange-mounted (ANSI or DIN), or bracket-mounted (for tank top or wall installation)2.3 Wireless Communication SpecificationsThe Rosemount 708 relies on WirelessHART for wireless data transmission, with specifications optimized for industrial reliability.Protocol: WirelessHART? (IEC 62591)Frequency Band: 2.4 GHz ISM band (globally license-free)Modulation: Frequency Hopping Spread Spectrum (FHSS) with 160 channelsData Rate: Up to 250 kbpsNetwork Topology: Mesh network (self-organizing, self-healing)Communication Range: Up to 300 meters (line of sight) in open environments; up to 100 meters in indoor/industrial environments (with obstacles)Latency: Configurable (1 second to 1 hour, based on update rate)Security Features: 128-bit AES encryption (for data transmission), device authentication, access control, and secure key managementNetwork Capacity: Up to 250 devices per gateway; each device can relay data for up to 10 neighboring devices2.4 Power Supply SpecificationsThe Rosemount 708 is powered by replaceable batteries, with specifications designed for long-term operation.Battery Type: Lithium thionyl chloride (Li-SOCl2) batteries (non-rechargeable, high energy density)Battery Configuration: 2 x 3.6 V batteries (series, total 7.2 V) or 1 x 7.2 V battery (depending on model)Battery Capacity: 7.2 Ah (typical)Battery Life: Up to 10 years (at 1 sample per minute update rate, no relaying); up to 5 years (at 1 sample per second update rate or high relaying activity)Power Consumption: <10 μA (idle mode); <100 mA (transmit mode, peak)Battery Monitoring: Continuous voltage monitoring; low-battery alert (transmitted when voltage drops to 6.0 V)SpecificationMeasurement Range0.1 m to 10 m (0.33 ft to 32.8 ft)Blind Zone0.1 m (0.33 ft) (minimum distance from transducer to media surface)Accuracy±0.25% of measured range or ±1 mm (whichever is greater)Repeatability±0.1% of measured rangeResolution0.1 mmMedia CompatibilityLiquids, slurries, pastes (corrosive, viscous, or with suspended solids)Temperature CompensationAutomatic (based on ambient temperature: -40°C to 85°C)Speed of Sound AdjustmentConfigurable (290 m/s to 450 m/s) to account for gas composition (e.g., nitrogen, argon)Company ProfileKeRui (Weifang) Automation Equipment Co. Ltd. Has maintained a cooperatve relationship with Rosemount for 15 years, and our purchase quantity has reached 20,000 units.We supplied the tuning fork level gauge to the Rosemount factory and have been well received by the Beijing factory. We have cooperated with Yokowaga and maintained a cooperative relationship for 8 years, and our purchase quality has reached 7000 units.The companies we have cooperated with:1. Awarded "Outstanding Supplier by Yanchang Petroleum in 20082. In December 2012, our company was awarded the "Excellent Equipment Service Award" for the expansion project of units 6 and 7 of the Guangdong Guohua Yuedaishan Power Plant3. Awarded "Outstanding Supplier by Yaxing Group in 20134.200 transmitters for Haihua Group's ethylene debottlenecking transformation project in 2015.5. In 2018, we were rewarded as a National Nuclear Power Instrumentation Industry Measurement and Testing Alliance member.6.160 transmitters and 20 electric autuators for the Shandong Laigang Yongfeng Steel expansion project in 20197.In 2022, Jinneng Chemical (Qingdao) Co., Led/ Jinneng 2x450,000 tons/ year high-performance polypropylene project (newly built) equipped 460 transmitters from our company.8. In 2022, Shandong Qinghe Chemical Technology Co., Ltd.s hydrogen peroxide method epoxy propane device and supporting hydrogen peroxide device expansion project used 253 pressure transmitters.9.In 2022, the Wanhua Chemical HTN project NPG installed 320 transmitters and 50 sets of valve positioners.Our ServiceOEM / ODM servicesTo meet the user diversified requirement, Holykell have established a set of customer service and technical support system with OEM / ODM order as the center, and responded and Handle the customer's requirements in a timely manner to ensure accurate delivery time and product quality.Order servicesFastest reply:Professional sales engineers 7/24 online servicesPayment terms:T/T ,Western union, Paypal, Credit Card, L/C othersFast delivery: within 24 hours release the cargo (normal spec.), Customized 7-12 days after payment . MAINTENANCE & AFTER-SALES SERVICESCustomer Feedback: Sales engineers and technical engineers will be one-on-one service for you to exclude all obstacles when use our sensors.Warranty period: 12 monthsProduct life-long maintenance: Holykell can provide you with the maintenance of the whole life of the sensorsPackaging & ShippingFAQQ1: How long will it take you to give me the reply?A: We will reply to you as soon as we see the informationQ2: What is the delivery time?A: Our delivery time is within 3- 7 days after we get your payment; for large qty mass orders, the time should be confirmed again for youQ3: How about your package? A: Do not worry about the package. We have a lot of experience in packing, and all our packages are wooden case packages.Q4: How about the payment terms?A: You can choose T/T.Q5: Do you provide samples? A: Yes, we have materials in stock to help you get the samples as soon as we can.Q6: What is the MOQ?A:1PC.Q7: Can I get a lower price if I order large quantities? A: Yes, cheaper prices with larger orders.Q8: Why choose us?We have a perfect customization, not only to provide you with quality products, but also to have a professional customer service team available at any time to provide you with support. We pay more attention to establishing a long-term cooperative relationship with you to achieve continuous business growth.Q9: How can we guarantee quality?We have strict requirements on the quality of our products, and we will conduct a final inspection of our products when we ship them.
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