vaetrix e Gauge 1, Руководство по эксплуатации, Страница: 17 / 24

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TROUBLE SHOOTING
The eGauge is a very high performance gauge. Due to the high resolution of this
product, you may observe conditions that appear to be defects in the product, but are
in fact a result of being able to resolve and measure pressure to a degree not possible
with other instruments.
Noisy or Unstable Readings When Used with Fluids
When calibrating or comparing the indicated pressure from an eGauge against a
hydraulic deadweight tester or piston gauge, the reading on the eGauge may appear
unstable–the least significant digit jumps up and down several counts.
√
Reason: Gas (usually air) is trapped in the line between the gauge and the dead
weight tester. What is actually happening is the mass is oscillating up and down, and
the combination of gas and fluid is acting like a spring. At higher pressures (above
2000 psi, typically) this may eventually diminish, as the gas dissolves into the fluid.
t
Solution: Evacuate all tubing with a vacuum pump, before introducing fluid into
the system.
Non-repeatability of Pressure Measurements
When checking the gauge against a hydraulic dead-weight, increasing pressure
measurements do not match decreasing pressure measurements.
√
Reason: As in the previous note, gas has dissolved into the hydraulic fluid. When
decreasing the pressure, the dissolved gas then leaves the fluid, but at an uneven
rate, so small pressure differential (due to fluid head pressure) may exist between the
reference dead-weight and the gauge being tested.
t
Solution: Evacuate all tubing with a vacuum pump, before introducing fluid into
the system.
Gauge Display is Blank
√
Reason: Battery Dead
t
Solution: Install 4 new AA batteries.
After installing batteries Display is still Blank
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Solution: Non Field repairable consult factory.
Batteries Do Not Last
√
Reason:
Not changing all four batteries at the same time.
t
Solution: Change all four batteries at the same time and Switch gauge off when not
in use.
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