4

www.honeywell.com/sensing

Table 5. Sensor Types

Type

Description

Absolute

Output is proportional to difference between applied pressure and built-in reference to vacuum (zero pressure).

Gage

Output is proportional to difference between applied pressure and atmospheric (ambient) pressure.

Differential

Output is proportional to difference between pressure applied to each of the pressure ports (Port 1

– Port 2).

Figure 2. Transfer Functions and Limits

A Calibration, 10% to 90%

B Calibration, 5% to 95%

Table 6. Sensor Output at Significant Percentages

% Output

Digital Counts (dec)

Digital Counts (hex)

0%

0

0x0000

5%

819

0x0333

10%

1638

0x0666

50%

8192

0x2000

90%

14746

0x399A

95%

15565

0x3CCD

100%

16383

0x3FFF

Figure 3. Completed Catalog Listing Example

ASDXAVX001PG2A3:

AV pressure port, 1 psi gage, I

(Address 0x28), 10% to 90% calibration

at 3.3 Vdc operation.

ASDXAVX001PG2A3 Output vs Pressure