Hanna Instruments HI 23 Series Instruction Manual page 52

"03<STX>10.7D<ETX>" "03<STX>10.7D<ETX>" "03<STX>10.7D<ETX>"
"03<STX>10.7D<ETX>" "03<STX>10.7D<ETX>"
meaning that the current temperature reading is 10.7°C, the
control action is active and no alarm condition is present
and controller setup is modified (must update controller setup
for PC – GET commands for setup items).
If asking for the last calibration data and the controller was
never calibrated, it answers with "0"; e.g. . . . .
"01<STX>0<ETX>". "01<STX>0<ETX>". "01<STX>0<ETX>".
"01<STX>0<ETX>". "01<STX>0<ETX>".
If the controller was calibrated, it answers with "1" followed
by the calibration data. The Data field of the answer has
the following format:
1<Date><Time><Cell Constant>
• Date:
• Time:
• Cell Constant: ASCII string (e.g. "1200")
The items in the Data field are separated by blanks.
52
DDMMYY (e.g. "170400" for April
17,2000)
HHMM (e.g. "1623" for 4:23 pm)