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QDL80B-YG Flush Diaphragm Digital Pressure Gauge
QDL80B-YG is a digital pressure gauge designed around “Flush Diaphragm Reduces Residue and Blockage.” 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 pressure monitoring, food process and industrial process 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.
QDL80B-YG is a digital pressure gauge designed around “Clear Local Display for Faster Field 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 feature is directly relevant to pressure monitoring, food process and industrial process 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.
QDL80B-YG is a digital pressure gauge designed around “Reliable Pressure Measurement for Process Media.” Matches the measuring structure to the specified medium and operating conditions. The sensing principle and material arrangement are matched to the process medium and the applications stated in the source table. The feature is directly relevant to pressure monitoring, food process and industrial process projects. Match the medium and process conditions of pressure monitoring applications, 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 full operating temperature range)
Sensitivity Temperature Drift:±0.05% F.S./℃ (within full operating temperature range)
Repeatability Error:≤0.1% F.S.
Hysteresis Error:≤0.1% F.S.
Long-term Stability:≤0.3% F.S./year; maintains consistent accuracy without periodic calibration
Response & Filtering:3-level adjustable (fast / standard / slow); suppresses pressure fluctuation jitter without response lag
Peak / Valley Memory:Built-in max. and min. pressure recording with one-key freeze function for on-site data sampling
Unit Switching Consistency:No zero offset or accuracy loss after arbitrary unit switching
Instantaneous Overpressure Tolerance:150% F.S. transient overload; no permanent zero drift or structural damage
Dimension Chart
Wiring Diagram