16
Note: These values can be used to determine if the IPT is being used within its specified
operating range. If samples from the pressure ADC are outside this range, the accuracy
of the correction algorithm cannot be guaranteed.
3.3.2.6 Minimum/Maximum Temperature Output
The minimum and maximum temperature output values (
Min/Max Tout
) are the
minimum and maximum values observed from the temperature channel ADC over the
IPT operating temperature/pressure range and are stored as 16-bit unsigned integers.
The minimum value is stored in locations
A4
through
A5
and the maximum value in
A6
through
A7
.
Examples:
Min
40175 = 9CEF
Max
60503 = EC57
Note: These values can be used to determine if the IPT is being used within its specified
operating range. If samples from the temperature ADC are outside this range, the
accuracy of the correction algorithm cannot be guaranteed.
3.3.2.7 Algorithm/Type, Date
Four unsigned bytes are used to identify the correction Algorithm, IPT transducer Type
and the manufacturing Date Code (
Algorithm/Type/Date Code
) at locations
A8
through
AB
.
The most significant byte is used to identify both the correction Algorithm and IPT type
with high nibble for Algorithm and low nibble for Type (shown here in binary).
Algorithm is:
#1
= 0000b
#2
= 0001b
Type is defined as:
Absolute
= 0001b
Gauge
= 0010b
Differential
= 0011b
Date is stored using the three remaining bytes in the format of mmddyy.
Example:
010C1B07
= Algorithm #1, Absolute, December 27, 2007
Example:
13060B0A
= Algorithm #2, Differential, June 11, 2010
3.3.2.8 Serial Number
The IPT
’ serial number (
Serial No.
) is stored as an unsigned 32-bit value in locations
AC
through
AF
.
Example:
1100009827 = 4190D163
3.3.2.9 Honeywell Part Number
The Honeywell part number (
Hon. P/N
) stored in EEPROM is encoded to form a P/N in
the form of 22xxxxxx-0xx or 58xxxxxx-xxx with a special-order code of
–Tyyy.
xxxxxxxx is 24-bit unsigned value from
000000
to
16777215
and yyy is an 8-bit
unsigned value from
00
to
255
.