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QDY30A-80 Split Digital Level Gauge for Tank Monitoring

A split digital level gauge combining an 80mm IP65 LCD head with a remote IP68 submersible probe for convenient, reliable liquid level monitoring.
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QDY30A-80 Split Digital Level Gauge

QDY30A-80 digital level gauge with 80mm LCD for clear on-site monitoring

Clear On-site Display for Faster Inspection

QDY30A-80 is a digital pressure gauge designed around “Clear On-site Display for Faster Inspection.” Displays the measured value directly at the process point for easier inspection and commissioning. The local display makes the live value and operating state easier to verify during commissioning, inspection and routine maintenance. The confirmed values highlighted here are 80. The feature is directly relevant to pump station, water tank and deep well projects. Check operating status directly without opening the control system, helping engineers keep the installation, inspection and signal path easier to manage during long-term operation.

QDY30A-80 split digital level gauge for simple installation and field maintenance

Installation-focused Design for Digital Pressure Gauge

QDY30A-80 is a digital pressure gauge designed around “Installation-focused Design for Digital Pressure Gauge.” The dedicated mechanical and connector structure simplifies installation, replacement and field maintenance. The dedicated mechanical, connector or mounting structure helps the instrument fit the intended pipe, tank, cabinet or equipment interface. The feature is directly relevant to pump station, water tank and deep well projects. Shorten installation time and simplify later field maintenance, helping engineers keep the installation, inspection and signal path easier to manage during long-term operation.

QDY30A-80 split level gauge with remote submersible probe for flexible tank installation

Split Structure for Flexible Installation & Maintenance

QDY30A-80 is a digital pressure gauge designed around “Split Structure for Flexible Installation & Maintenance.” The dedicated mechanical and connector structure simplifies installation, replacement and field maintenance. The dedicated mechanical, connector or mounting structure helps the instrument fit the intended pipe, tank, cabinet or equipment interface. The feature is directly relevant to pump station, water tank and deep well projects. Shorten installation time and simplify later field maintenance, helping engineers keep the installation, inspection and signal path easier to manage during long-term operation

Working Principle Diagram

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Technical Specifications

Zero Temperature Drift:±0.05% F.S./℃ (within compensated temperature range)


Sensitivity Temperature Drift:±0.05% F.S./℃ (within compensated temperature range)


Long-term Stability:≤0.2% F.S./year; minimal calibration required for year-round continuous operation


Step Response Time:≤500ms (10% → 90% full scale, steady-state condition)


Anti-wave Damping:Software-adjustable multi-level filtering; eliminates reading jitter from surface ripples and pump start-stop surges


Safe Continuous Overpressure:200% F.S.; no permanent diaphragm deformation or zero shift


Burst Pressure Rating:≥300% F.S.; withstands sudden water hammer and level surges


Zero Recovery Performance:≤0.1% F.S. offset after full overpressure release


Built-in Surge Protection:QDY30A-80: basic TVS transient suppression QDY30A-80-B: 2-stage lightning protection


On-site Calibration:Zero reset and unit switching via front keypad; no need to retrieve the probe for routine adjustment


Display Function:Real-time level value, engineering unit, battery / power status indication


Output Short-circuit Protection:Fully supported at gauge head; no permanent component damage under continuous short circuit


Reverse Polarity Protection:Full power supply reverse tolerance; no internal circuit damage with reversed wiring

Dimension Chart

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Wiring Diagram

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Phone: +86-19715617532
Add: Building 14, University Science and Technology Park, Fenghuangshan Economic Development Zone, Xiangshan District, Huaibei City, Anhui Province

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