Rice Lake RL1800 Series, Руководство по установке

Страница: 8 / 16

RL1800 Series Weigh Module Kit
4 Visit our website
www.RiceLake.com
The load on each module should not more than 20%. During installation, add shims where
needed to verify the correct load distribution is achieved on each module.
During installation, dummy load cells can be used to prevent overload damage.
If the actual load cells are used during installation of the weigh module,
extreme care must be taken to prevent overload damage. A tank or
hopper weighing several tons can exert extreme forces when dropped
only a fraction of an inch.
All piping or conduit must be horizontal and flexible sections close to the vessel.
• If flexible piping is not used, make sure the distance from the vessel to the first
pipe support is 20-30 times the pipe diameter.
• In smaller, lower capacity tanks and hoppers, isolating the resultant forces
becomes extremely critical.
• If possible, use flexible conduit piping close to the vessel instead of the rigid
variety.
• See the Weigh Modules & Vessel Weighing Systems manual (PN 22054) for more
information.
Figure 2-3. Piping and Conduit
Load cells should not be installed in modules until welding is completed.
The heat generated from welding current passing through a load cell can damage the
adhesive holding the strain gauge to the body.
• If possible, use a dummy load cell when welding to maintain finished height.
• If welding is unavoidable after load cell installation, ground in such a manner as to
prevent welding current from passing through the load cell.
• Ground the welder as closely as possible to the point of welding.
Never rely on check rods or piping for grounding.
When possible, use hermetically sealed load cells in washdown applications.
• Environmentally protected load cells are not suitable for such applications and will
be damaged.
IMPORTANT
Flexible Piping
Junction Box
Level ± 0.5°
IMPORTANT
IMPORTANT