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QDY30A-80 Split Digital Level Gauge
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 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 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
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
Wiring Diagram