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China, Chinese Smart Digital Oil Level Gauge with Real-Time Monitoring Features1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
SensorLiquid Level SensorDigital Oil Level GaugeSmart Gauge
Bushing(Beijing)Hv Electric Co., Ltd.
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Product Description Product DescriptionThe Digital Oil Level Monitoring Terminal represents the next generation of intelligent monitoring equipment, engineered to meet the State Grid Corporation of China's latest specifications for digital remote oil level monitoring in smart substations. This advanced system functions by integrating with remote oil level gauges or other liquid level and displacement sensors through 4-20mA signal transmission, enabling real-time oil condition monitoring with bidirectional communication via RS485 protocol. Designed for mission-critical transformer applications, this terminal delivers comprehensive monitoring capabilities with local data storage, anomaly indication, and non-intrusive calibration functionality-eliminating the need for equipment disassembly during maintenance procedures. Technical Advantages & ComplianceRegulatory Compliance: Fully certified to meet stringent State Grid Corporation of China standards:Q/GDW 12184: Transmission and Transformation Equipment IoT Sensor Data SpecificationQ/GDW 12186: Transmission and Transformation Equipment IoT Communication Security SpecificationSmart Substation Technical Specification - Part 4: Digital Remote Transmission Meters (Trial Version)Dual-Output Architecture: Features simultaneous RS485 digital communication and 4-20mA analog output for seamless integration with both modern SCADA systems and legacy infrastructure.Enhanced Reliability: Engineered with superior electromagnetic interference (EMI) resistance for stable operation in high-noise industrial environments, ensuring continuous monitoring with precision accuracy of ±2.5%.Advanced Alarm System: Configurable dual-level protection with:Primary high/low threshold alertsSecondary extreme condition warningsCustomizable alarm points tailored to specific transformer operational parametersComprehensive Data Management:Stores 20,000+ historical data points for trend analysis and predictive maintenanceUSB interface for rapid data retrieval without system interruptionAutomatic timestamping of all measurements for audit complianceOperational Excellence:Integrated local status indicators for immediate identification of communication failures and system faultsNon-intrusive calibration capability maintaining continuous monitoring during verification proceduresIndustrial-grade LCD display with optimized visibility for both daylight and nighttime conditionsWide operating temperature range (-40°C to +70°C) with frost-resistant display technologyDeployment Flexibility:Modular architecture compatible with diverse liquid level and displacement sensor technologiesDirect replacement solution for legacy wired monitoring systemsSimplified installation and maintenance protocols reducing operational downtime Technical ImplementationThe terminal's advanced architecture enables seamless integration into existing transformer monitoring ecosystems through standardized communication protocols while providing critical operational data for condition-based maintenance strategies. Its dual-output design ensures compatibility across multiple generations of control systems, making it an ideal solution for both new smart substation deployments and legacy system upgrades. Engineered for the demanding requirements of high-voltage power infrastructure, this monitoring terminal delivers the precision, reliability, and security essential for modern transformer fleet management-significantly enhancing operational safety while reducing lifecycle costs through predictive maintenance capabilities.Main Performance specification Performance SpecificationsOperating Environment: Temperature range -40°C to 80°C, Humidity 10% to 95%Installation Location: Suitable for both indoor and outdoor applicationsIngress Protection Rating: IP65Power Supply Voltage: AC 85-260V or DC 120-370VMeasurement Accuracy: Class 2.5Input Signal: 4-20mAOutput Signal: Dual-channel 4-20mA and RS485 interfaceSwitch Contact Rating: AC 220V/10A; DC 220V/5A Detailed Photos Product Parameters Applicable EnvironmentAmbient Temperature: -40°C to +80°CHumidity: 10%-95%Installation LocationIndoor or OutdoorProtection ClassIP65Supply VoltageAC 85-260V or DC 120-370VAccuracy Class2.5Input Signal4-20mAOutput Signal4-20mA and RS485Switch Contact CapacityAC 220V/10A; DC 220V/5A FAQQ1: What makes this digital oil level gauge suitable for transformer applications?A:Real-time monitoring: Combines 4-20mA analog output and RS485/Modbus RTU digital communication for seamless integration with SCADA systems.High reliability: Compliant with State Grid Corporation's IoT standards (Q/GDW 12184, Q/GDW 12185) for secure data transmission and power equipment compatibility.Dual protection: Features high/low level alarms and self-test failure indicators to prevent operational downtime. Q2: How does it differ from traditional analog gauges?A:Digital precision: Displays exact oil levels (accuracy ±2.5%) with LCD screen visibility in low-light conditions.Data storage: Stores up to 20,000 data points for historical analysis.Alarm customization: Set threshold limits via RS485 interface for double protection (e.g., high-high and low-low alerts). Q3: What industries or equipment use this gauge?A:Power grids: Transformer substations, circuit breakers.Industrial plants: High-voltage switchgear, motor control centers.Renewable energy: Wind turbine transformers, solar inverters. Q4: What communication protocols does it support?A:RS485/Modbus RTU: Enables remote monitoring and integration with PLCs/HMI systems.4-20mA analog output: Compatible with legacy control systems. Q5: Why choose this gauge over competitors?A:State Grid-certified: Meets China's strictest standards for power equipment.Modular design: Easily replaces existing diaphragm/capsule-type level gauges.Low maintenance: No mechanical moving parts; IP65-rated for harsh environments. Q6: Can you customize the alarm thresholds or display settings?A: Yes! Adjust:High/low limit points: Tailor to your transformer's operational parameters.LCD brightness: Day/night modes for optimal visibility.Communication protocol: Switch between RS485 and 4-20mA as needed. Q7: What certifications and standards does it meet?A: Fully compliant with:State Grid Q/GDW 12184: IoT sensor data specification.Q/GDW 12185: Communication security for power equipment.IP65 rating: Dust/water-resistant for outdoor installations. Q8: How is the gauge installed?A:Mounts directly on transformer tanks via flange connections.Connects to sensors via 2/3-wire configurations (diagrams provided).Minimal wiring: 4-20mA output requires only two wires. Q9: Why buy from a Made in China supplier?A:30% lower cost vs. European/US competitors.Localized R&D: Tailored solutions for Asian power grid projects.Global certifications: Trusted by State Grid China and Siemens-tier OEMs. Q10: What's the lead time for bulk orders?A:Standard units: 10-15 days (MOQ 20 pieces).Custom designs: 20-25 days (with engineering consultation).Rush service: 5 days (+20% surcharge).
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