5
2.2 Specifications/Performance
Total Error Band
(1)
±0.04%FS absolute
±0.10%FS gauge, differential
±0.20%FS 1 psi gauge
Supply Voltage
4 to 12 VDC
Current Consumption
6 mA typical, 7.5 mA max
Operating Temperature Range
-40 to 85°C (-40 to 185°F)
Storage Temperature Range
-55 to 125°C (-67 to 257°F)
Sample Rate
See section 3.1.2
Long Term Stability
0.025%FS max per year typical
Pressure Ranges/Type
20, 50 psia
1, 2, 5, 10, 20 psig
1, 2, 5, 10, 20 psid
Pressure Units
PSI
(2)
Media Compatibility
Non-condensing, non-corrosive,
non-combustible gases
Weight
(3)
~ 8.0 grams (absolute)
~ 9.7 grams (gauge, differential)
Size
See section 2.3
(3)
Interface
3.3V SPI (mode 1,1)
(4)
SCLK
≤ 5 MHz
Output
24-bit pressure value
16-bit temperature value
256 x 8 EEPROM configuration
Overpressure
3X FS
Burst Pressure
3X FS
Humidity Sensitivity of
Pressure Ports
DO-160E, Section 6.0, category A
(5)
Electromagnetic Immunity/Emissions
(6)
Mechanical Shock
DO-160E Section 7.0, Category A,
Figure 7.2, Operational Standard
Thermal Variation
Storage Temperature Cycling per
JESD22-104, Section 5.0: -55°C to
+125°C,
Vibration
DO-160E Section 8, Category H,
Aircraft Type 2, Aircraft Zones 1 & 2.
ESD
Class 3A, Table III, MIL-STD-883G,
Method 3015.7, section 3.4
RoHS Compliant (2011/65/EU)
Yes
(1)
Total Error is the sum of worst case linearity, repeatability, hysteresis, thermal effects, and calibration errors over the operating
temperature range. Accuracy is only achieved after applying the correction coefficients and algorithm as shown in section 3.2. (FS =
Full Scale) For total error calculations of
differential units, “Full Scale” is the pressure difference between the minimum and maximum
pressures. For example, full scale for a 1 psid PPT is 2 psi (-1 to +1 psi).
(2)
After applying the correction coefficients stored in EEPROM, the resultant pressure reading is expressed in PSI
(pounds per square
inch).
(3)
Not including any mounting hardware. Dimensions in section 2.3 do not include Humiseal 1A33 conformal coating which is typically
applied to the PWB assembly at a thickness of 1-3 mils.
(4)
Operation with a digital interface > 3.3V can damage the IPT and cause shifts in the ADC output.
(5)
IPT electronics require protection from humidity.
(6)
IPT requires shielding from EMI.