Electrical – Martel Electronics BetaGauge 3II User Manual

Page 180

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B-5

Specifications

Notes:

1.

Accuracy is percent of full scale range, over the 15 °C
to 35 °C temperature range. Includes the
pressure/temperature hysteresis in psi. The accuracy
statement shown in the specification table is the base
accuracy from 15 °C to 35 °C. Outside this temperature
range, add an additional ±0.0015% of FS per °C. (For
the 0.3 and 1psi ranges add an additional +0.005% of
FS per °C) To calculate the allowed deviation of a
particular BETA Pressure Module, use the following
formula: Deviation = ±%FS , ±T/P H, ±tempco Where
±T/P H = thermal/pressure hysteresis in psi where
applicable, And ±tempco = ±0.0015% FS/°C when the
temperature is outside the 15-35 °C temperature range

2.

The Gauge, Vacuum, and Compound type range
measurements are relative to atmospheric pressure.
The Absolute type is a measurement made relative to
absolute zero (perfect vacuum). The Differential type is
a measurement made relative to the pressure applied to
the low-pressure port of the module.

3.

Units for display: pounds per square inch (psi), millibars
(mbar), kilopond per square centimeter (kp/cm2, also
kg/cm2), atmospheres physical (Atmos), kiloPascals
(kPa), MegaPascals (MPa), inches of Mercury @ 0 °C
(InHg), millimeters of Mercury @ 0 °C (mmHg), inches
of water column (InWC), centimeters of water column
(cmWC), or one user-defined pressure unit.

4.

These extended ranges are derated because the
calibrated range of the module does not match the
range of the sensor.

5.

The maximum static pressure is 200 psig (14 bar).

6.

Relative to the calibration standard.

7.

ADD thermal and pressure hysteresis = 0.0025 PSI
(0.1724 mBar)

8.

ADD thermal and pressure hysteresis = 0.0030 PSI
(0.2068 mBar)

9.

0 to 7.2 PSI, 0 to 150 PSI, and 0 to 1500 PSI are
extended ranges.

10.

Gauge, Absolute, and Compound types are isolated
and accept any media compatible with 316SS. Vacuum,
Differential, and 0.3psig and 1psig types are compatible
with pressure media that are clean, dry, non-corrosive
air or gas

Electrical

±0.01% FS + ±0.01% Rdg (15ºC to 35ºC) for 12 months

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