Martel Electronics BetaGauge 3II - Manual (Page 34)

2-7 Modules
Pressure Module Safety
Always use good safety practices when working with
high pressures. Although liquids are considered non-
compressible, dissolved and trapped gases can exist in
the system and can store significant energy when
compressed under high pressure. Always use good
quality fittings that are rated for the pressures you are
using and always use safety glasses or goggles.
Overpressure Protection
The sensors used in BetaPort–P pressure modules have
excellent overpressure specifications. However, it is
possible to damage the sensor if you connect the
module to excessive pressure.
CAUTION: Do not connect the BetaPort–P pressure
module to a pressure source greater than
the full scale range of the module. Doing
so may damage the module.
If you suspect that a module has been subjected to
excessive pressure, compare its performance with an
equivalent device to verify its performance.
CAUTION: Using third party devices to provide
external pressure relief is not
recommended. A leaking pressure relief
device may affect the measurement
accuracy.
A module that has been exposed to excessive
overpressures may indicate stresed on the calibrator
LCD (or EE ERR for earlier versions of firmware). If
this happens, you should return the module to the
factory for service.