User Manual for AML Oceanographic’s Micro Pressure Sensor
AML OCEANOGRAPHIC
In-situ Real-time Detection Measurement
5
1.3 System Description
The Micro Pressure Sensor is a single parameter, self-contained, intelligent pressure sensor.
The Micro Pressure Sensor features CMOS based microprocessor with 64 bytes of data
memory for storing the instrument's calibration coefficients and an A/D converter with 1
part in 65000 counts resolution.
An on board thermistor mechanically attached to the pressure sensor allows the
microprocessor to temperature compensate the pressure data to an accuracy of ±0.05% of
full-scale pressure.
The Micro Pressure Sensor is designed for use with an IBM-PC compatible computer. The
instrument's output is standard ASCII RS-232. The baud rate is automatically determined
when the sensor receives an <
ENTER
> or <
RET
>. The data output may be configured to
display either unprocessed integers, or computed engineering values. The sample rate is
continuous at 25 scans per second. The instrument is powered externally by a power
supply set to 8-26 Volts DC.
1.4 About the User
This manual has been written with the following assumptions:
• The user has had some exposure to Windows
™
(IBM-PC) compatible computers, and is
moderately computer literate with a working knowledge of computer operation and
terminology.
• The user is familiar with the operation and function of standard communications
packages.
While it is possible to operate the Micro Pressure Sensor without these qualifications,
some computer experience will greatly assist the user to pass through the learning curve
more rapidly
