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QDL80B-ZMP Threaded Flush Diaphragm Digital Pressure Gauge

A clog-resistant, battery-powered digital pressure gauge with threaded flush diaphragm and IP65 protection for reliable measurement in viscous or residue-forming industrial media.
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QDL80B-ZMP Threaded Flush Diaphragm Digital Pressure Gauge

QDL80B-ZMP threaded flush diaphragm pressure gauge designed to reduce residue and blockage in process media

Flush Diaphragm Reduces Residue and Blockage

QDL80B-ZMP 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-ZMP battery digital pressure gauge with clear local display for direct field pressure reading

Battery Digital Display for Direct Field Reading

QDL80B-ZMP is a digital pressure gauge designed around “Battery Digital Display for Direct Field Reading.” 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 an

QDL80B-ZMP flush diaphragm digital pressure gauge for pressure inspection of viscous process media

Pressure Inspection for Viscous Process Media

QDL80B-ZMP is a digital pressure gauge designed around “Pressure Inspection for Viscous Process Media.” 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.

Working Principle Diagram

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Technical Specifications

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


Anti-jitter Algorithm:Adaptive digital filtering; stable display on vibrating pipelines and reciprocating pump lines


Zero Reset Function:One-key zero clearing at atmospheric pressure; compensates for position and temperature drift on site

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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