This guide summarizes key field requirements for the installation and inspection of pressure instruments, following common industrial standards.
1. Installation Requirements
Vertical Mounting: Vibration-resistant pressure gauges must be installed in a vertical orientation.
Support Height: For pressure or differential pressure transmitters, the mounting pillar should be 1.2 meters tall.
Capillary Tubes: Capillaries should be bundled along the cable conduit using cable ties. At the transmitter side, excess tubing should be coiled and secured to the mounting bracket.
Display Orientation: The transmitter display must be positioned for convenient viewing and maintenance access.
Explosion-Proof Cable Glands: Check that explosion-proof glands are properly installed and tightened. Stainless steel plugs should be mounted on the opposite side of the gland.
Flange Bolts: Bolt ends must extend 5–10 mm beyond the nut face.
Flange Protection: Ensure flange protective covers are removed before installation.
Tapping Location: When both pressure and temperature sensors are mounted on the same pipe, pressure taps must be upstream.
2. Wiring and Connection Standards
Cable Termination: Wiring should be neat and standardized. Cable ends must be properly terminated with pre-insulated terminals.
Shielding & Grounding: The shielding layer must not be exposed unnecessarily and should be grounded as per EMC guidelines.
Screw Tightness: Ensure all screws are tightened and terminals are secure, avoiding any loose connections.
3. Safety & Accessibility
Serviceability: Instruments should be installed in locations that facilitate easy maintenance and inspection.
Environmental Suitability: Materials such as aluminum or stainless steel housings should be selected based on environmental corrosion conditions.
🔧 This checklist is typically used in FAT (Factory Acceptance Test), site commissioning, and routine inspections. It helps ensure compliance with safety, performance, and accessibility standards for pressure instrumentation in industrial facilities.