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WARNING! READ BEFORE INSTALLATION
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1. GENERAL:
A failure resulting in injury or damage may be
caused by excessive overpressure, excessive
vibration or pressure pulsation, excessive
instrument temperature, corrosion of the
pressure containing parts, or other misuse.
Consult Omega Engineering before installing
if there are any questions or concerns.
2. OVERPRESSURE:
Pressure spikes in excess of the rated over-
pressure capability of the gauge may cause
irreversible electrical and/or mechanical
damage to the pressure measuring and con-
taining elements. Fluid hammer and surges
can destroy any pressure transducer and
must always be avoided. A pressure snubber
should be installed to eliminate the damaging
hammer effects. Fluid hammer occurs when
a liquid flow is suddenly stopped, as with
quick closing solenoid valves. Surges occur
when flow is suddenly begun, as when a
pump is turned on at full power or a valve is
quickly opened.
PRESSURE SURGES:
Surges are particularly damaging to pres-
sure gauges if the pipe is originally empty.
To avoid pressure surges, fluid lines should
remain full (if possible), pumps should be
brought up to power slowly, and valves
opened slowly. To avoid damage from both
fluid hammer and surges, a surge chamber
should be installed. Symptoms of fluid ham-
mer and surge's damaging effects:
• Digital Gauge exhibits large zero offset.
• Digital Gauge pressure display remains
constant regardless of pressure
• Error code is displayed on screen.
FREEZING:
Prohibit freezing of media in pressure port.
Unit should be drained. (Mount in vertical
position to prevent possible overpressure
damage from frozen media.)
3. INSTALLATION:
This procedure requires the use of a 1
(27mm) hex wrench for tightening the in-
strument to the process connection. Apply
Teflon tape or a suitable sealing compound
to NPT threads of the gauge. Take using
the wrench, tighten 1 turn beyond hand-
tight or until a leak-proof seal has been
achieved.
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Caution: Tightening the product
by grasping or putting a tool on the
plastic housing can cause permanent
damage to the product.
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