Total lifecycle care for your gas measurement instruments — from selection and installation to maintenance and upgrades.
How We Support You
1
Technical Consulting
Professional model selection, sizing, and explosion-proof requirements analysis.
2
Installation & Commissioning
On-site or remote guidance, parameter setting, and system integration.
3
Operation Training
User manual, video tutorials, and live training for your maintenance team.
4
Maintenance & Calibration
Routine inspection, filter cleaning, periodic calibration, and firmware updates.
Rapid Response
24/7 technical hotline, response within 2 hours, on-site service available.
Extensive Network
Service centers in 30+ provinces, covering most industrial areas in China.
Genuine Parts
Original manufacturer parts, extended warranty options.
IoT Remote Support
Cloud platform diagnostics, remote parameter tuning, and predictive alerts.
Frequently Asked Questions
What is the recommended calibration interval for gas flowmeters? ▼
For roots and turbine flowmeters with accuracy ≤0.5%, the recommended interval is 2–3 years depending on operating conditions. Hade offers calibration service traceable to national standards.
How to handle a prepayment valve that does not open after recharge? ▼
Check battery symbol on display first. If battery is low, replace with specified 7.2V lithium pack. If battery is OK, please contact our hotline for further diagnosis; do not disassemble the valve by yourself.
Does Hade provide remote IoT configuration service? ▼
Yes. For wireless models (-W suffix), we can remotely set communication parameters, server IP, and data upload intervals. A stable internet connection is required.
What documents are included with the instrument? ▼
Each unit comes with a test certificate, instruction manual, warranty card, and packing list. For exported goods, we also provide certificate of conformity and optionally third-party calibration reports.
