Cerabar PMP51B Analog
Mounting
Hauser
15
5
Mounting
5.1
Mounting requirements
5.1.1
General instructions
• Do not clean or touch process membrane with hard and/or pointed objects
• Do not remove process membrane protection until shortly before installation
Always firmly tighten the housing cover and the cable entries.
1. Counter-tighten the cable entries.
2. Tighten the coupling nut.
5.1.2
Installation instructions
• The standard devices (without diaphragm seals) are mounted according to the same
guidelines as pressure gauges (DIN EN837-2)
• To ensure optimal readability of the local display, adjust the housing and local display
• Hauser offers a mounting bracket to mount the device on pipes or walls
• Use flushing rings for flanges, flange seals and pancake seals if buildup or clogging can
be expected at the process membrane
• The flushing ring is clamped between the process connection and the flange, flange
seal or pancake seal
• Material buildup in front of the process membrane is flushed away and the pressure
chamber is vented via the two lateral flushing holes
• When measuring in media containing solids (e.g. dirty liquids), installing separators and
drain valves is useful for capturing and removing sediment
• Using a valve manifold allows for easy commissioning, installation and maintenance
without interrupting the process
• When mounting the device, establishing the electrical connection and during operation:
prevent the penetration of moisture into the housing
• Point the cable and plug downwards as much as possible to prevent moisture from
entering (e.g. rainwater or condensation)
5.1.3
Installation instructions for thread
• Device with G 1 ½" thread:
Place the flat seal on the sealing surface of the process connection
Avoid additional strain on the process membrane: do not seal the thread with hemp or
similar materials
• Device with NPT thread:
• Wrap Teflon tape around the thread to seal it
• Tighten the device at the hexagon bolt only; do not turn it by the housing
• When screwing in, do not overtighten the thread; tighten the NPT thread to the
required depth according to the standard
• For the following process connections, a tightening torque of max. 40 Nm (29.50 lbf ft)
is specified:
• Thread ISO228 G ½" with flush membrane
• Thread DIN13 M20 x 1.5 with flush membrane
• NPT 3/4" with flush membrane
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