Crystal nVision Lab Reference - Manual (Page 26)

Modules  24
nVision Operation Manual
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BAROMETRIC REFERENCE (BARO) MODULE SPECIFICATIONS
Absolute pressure mode is achieved by using the BARO Reference Module to establish a datum. The PM and BARO sensor uncertainties were combined to
establish a new accuracy statement for readings taken in the absolute mode. It must be noted that the accuracy statement is valid for readings of 1 barA or
greater.
Accuracy
± 0.00725 PSI, ± 0.5 mbar
Accuracy specifications include all effects of linearity, hysteresis, repeatability, temperature, and stability within the specified operating temperature range
for one year.
Note: Exposure to environmental extremes of temperature, shock, and/or vibration may warrant a more frequent recertification period.
Ranges, Resolutions, and Units
Range . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.153 to 15.954 PSIA, 700 to 1100 mbarA
 Units and Resolution
PSI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.001
inHg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.001
mmHg . . . . . . . . . . . . . . . . . . . . . . . . . . 0.01
mbar . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1
Logging Interval
Fastest Logging Interval . . . . . . . . . . 10 readings per second
Pressure Connection
Cylindrical sensor fitting of 5.8mm OD. A flexible 4.8 mm [3/16"] ID tube is recommended to connection for both nVision chassis forms.
Mounting
BARO Module is secured using 3/8” 4-40 plastic screw.
!
WARNING: Plastic non-conductive screw must be used to comply with hazardous locations requirements.
!
CAUTION: Direct contact with barometric sensor may cause permanent damage. Direct sunlight on exposed BARO sensor may affect readings slightly.