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QDL80B Battery-Powered Digital Pressure Gauge
QDL80B is a digital pressure gauge designed around “Battery-powered Stand-alone Pressure Measurement.” 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, compressed air system 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 is a digital pressure gauge designed around “5-digit LCD with Multiple Pressure Units.” 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, compressed air system 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 is a digital pressure gauge designed around “Reliable Pressure Measurement & Conversion.” Provides dependable pressure measurement for industrial automation systems. The product is organized around this specific field requirement without adding unrelated functions to the measuring point. The feature is directly relevant to pressure monitoring, compressed air system and industrial process projects. Improve measurement clarity and maintenance efficiency in 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