LIQUIDS and SOLIDS
• Mount the IMP away from any obstructions, falling
water/solids, rough walls, pumps, switches, etc…
• Visualize looking down the echo path of the IMP and
seeing a nice clear shot (2’+ dia.) to the very bottom
during fill and empty cycles.
• Ensure the maximum level does not come within the
minimum blanking distance.
• Confirm the inside of the standpipe is smooth and does
not have any protrusions at the weld.
• Increase the blanking distance 2+ inches beyond the
end of the standpipe where it attaches to the vessel.
• Typically, mount the IMP 1/2 the tank radius.
• Be careful screwing the IMP into a NPT thread and do
not over-tighten.
(Call Pulsar Technical Support for Special Service
Passcode and Instructions 850-609-1777.)
MOUNTING
• Do not over-tighten the threads! Try loosening if level is
reading very high.
LIQUIDS
• Dome top tanks will require First Echo Algorithm.
• If reading false level, use P21 and set true distance.
SOLIDS
• Consult factory if the silo is dusty—we may need to up-
grade to a stronger system.
• If reading false level, use P21 and set true distance.
• If acoustically noisy, change to Largest Echo Algorithm.
IMP PC SOFTWARE
• Warning… in 2-wire mode, inserting the RS232 cable will
result in automatic 20mA output.
Pulsar, Inc., PO Box 799, Shalimar, FL 32579 Phone: (850) 609-1777 Fax: (850) 651-4777 support@pulsar-us.com
IMP INSTALLATION TROUBLESHOOTING
ESC
(Display invert)
UP
(Temperature)
Down
(Echo Strength)
Enter
(Loop Current mA)
Congratulations on your purchase of a
Pulsar IMP - the low cost integral solution!
This quality system has been developed with the
latest digital ultrasonic technology for liquids,
slurries, and solids. No more noise and beam
angle problems. Also, no handheld programmer
or software required.
It provides non-contacting level and volume
measurement with 2 user-defined relays. Comes
standard as both 2-wire and 3-wire configuration.
Intrinsically Safe loop powered version available
with ATEX approval for hazardous areas.
IMP WIRING
2– wire (I.S. version must use barrier) 3– wire (relays can be used)
Pulsar Quick Start Manual - IMP
3– wire (rarely used as source)
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