APG RPM Explosion Proof Resistive Chain user manual - Manual (Page 6)

RPM Series Rev. D6, 10/09
6
Automation Products Group, Inc.
APG...Providing tailored solutions for measurement applications
Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • [email protected]
• Installation
- Location -
Do not locate the RPM sensor near inlets/outlets.
If there is surface wave action, then it may be advisable to use a stilling tube. If
a stilling tube is used, drill vent holes in the tube and use a spacer bottom
mounting bracket to assure the probe is centered in the tube and the can move
without interference.
Wave action will cause signal bounce. Use a stilling tube to provide a
smooth output signal.
- Mounting -
The RPM probe must be secured top and bottom. The bottom of the probe can
be secured using stainless steel bottom mounting bracket (p/n 135396) or
similar stainless steel mounting method. This bracket is fixed to the bottom of
the vessel and the
probe stem seats inside of it.
Mounting in this way will prevent any
lateral movement and prevent the float
from coming off of stem during use.
4.00"
0.75"
0.50"
3.21"
0.125"
Ø1.500" .083" Wall Tubing
Ø0.265" 2 places
Part Number 135396
Inflow
Bottom Mounting Bracket
Mounting Bracket
Stilling Tube
Inflow
Bottom Mounting Bracket
Mounting Bracket Top of Tank Top of Tank