Martel Electronics BetaGauge PI PRO - Manual (Page 10)

8
8. Specifications
Available Input Ranges
See page 13 for a table of available ranges in PSI plus equivalent
ranges and resolution for all engineering units
Accuracy
Positive Pressure: ±0.05% FS (all ranges except as noted)
10” WC (25mbar) ±0.1% FS
1.0 PSI (70 mbar) ±0.1% FS
Vacuum: ±0.25% FS (500 PSI gauge ranges and below)
0.1% FS for 15/30 PSI compound/vacuum versions
For gauges with full scale ranges equal to, or less than 30 psi (2 BAR),
vacuum operation is limited to -5psi (-350 mBAR). The exceptions are
the 2 compound ranges; -15 to 15 PSI and -15 to 30 PSI.
Over Pressure Protection:
See table of Ranges and Resolutions, page 13.
Temperature Compensation
15°C to 35°C (59°F to 95°F) to rated accuracy
Note: For temperatures from -10°C to 15°C and 35°C to 55°C, add
0.003% F.S./°C
Standard Engineering Units
See Table of Ranges and Resolutions, page 13, plus
One custom unit (user programmable)
Media Compatibility
All ranges except 1 PSI and compound ranges:
Liquids and gases compatible with 316 stainless steel
1 PSI and compound ranges: clean, dry, non-corrosive gas
Environmental
Operating Temperature -10 °C to +55 °C (14°F to 131°F)
Storage -20 °C to +70 °C (-4 °F to +158 °F)
Humidity 10% to 95% RH Non-condensing
Pollution Degree II