SMAR DT302, Owner'S Operation And Maintenance Manual

Page: 51 / 84

Configuration
3.17
Temperature Calibration
Write in parameter CAL_TEMPERATURE any value in the range -10
°
C to +120
°
C. After that, check
the calibration performance using parameter SECONDARY_VALUE.
Figure 3.12 – Temperature Calibration Configuration Screen
Sensor Data Reading
Always when
DT302 is on, is verified if the serial number of the sensor in the sensor board is the
same that the saved serial number in EEPROM in the main board. When these numbers are
different (a swap of sensor set or main board was carried through) the data stored in the EEPROM
of sensor board is copied to the EEPROM of the main board.
Through the parameter BACKUP_RESTORE, also this reading can be made, choosing the option
"Sensor Data Restore". The operation, in this case, is made independent of the sensor serial
number. Through the option "Sensor Data Backup", the sensor data stored in the main board
EEPROM memory can be saved in the EEPROM of the sensor board. (This operation is done at
factory).
Through this parameter, we can recover default data from factory about sensor and last saved
calibration settings, as well as making the rescue of calibrations. We have the following options:
•
Factory Cal Restore: Recover last calibration settings made at factory;
•
Last Cal Restore: Recover last calibration settings made by user and saved as backup;
•
Default Data Restore: Restore all data as default;
•
Sensor Data Restore: Restore sensor data saved in the sensor board and copy them to
main board EEPROM memory.
•
Factory Cal Backup: Copy the actual calibration settings to the factory ones;
•
Last Cal Backup: Copy the actual calibration settings to the backup ones;
•
Sensor Data Backup: Copy the sensor data at main board EEPROM memory to the
EEPROM memory located at the sensor board;
•
None: Default value, no action is done.
By adjusting this
parameter to the current
temperature, the device's
temperature indication is
adjusted.