10. Good Laboratory Practices (GLP)
The smartCHEM-Titro keeps a record of the date and time of the last calibrations for all
parameters as part of GLP guidelines.
10.1 To recall GLP information on the display
1. Switch the meter on.
2. Select the GLP menu (
→
→→
→ F5:GLP
).
3. Select
F1:Recall
from the menu.
4. The instrument model, firmware version number, and instrument serial number are displayed,
along with along with current calibration information. For example…
smartCHEM-T V1.0 T1234 31/12/04 13:00
mV Offset=10mV 31/12/04 12:00
pH Asymmetry=0.10pH 31/12/04 12:10
pH SlopeA= 99.0% 31/12/04 12:20
pH SlopeB= 99.0% 31/12/04 12:30
pH Calibrated
Temp Probe Offset=1.0
O
c 31/12/04 12:40
Temp Probe Calibrated F4:Ends
5. Press to quit.
10.2 Failed Calibration
If calibration has failed, the GLP function will reset the date and time for the failed parameter to
zero. The smartCHEM-Titro still shows the results for the last successful calibration, as shown in
the following example where the last pH calibration has failed…
smartCHEM-T V1.0 T1234 31/12/04 13:00
mV Offset=10mV 31/12/04 12:00
pH Asymmetry=0.10pH 00/00/00 00:00
pH SlopeA= 99.0% 00/00/00 00:00
pH Un-Calibrated
Temp Probe Offset=1.0
O
c 31/12/04 12:40
Temp Probe Calibrated F4:Ends
10.3 Printing GLP Information to the RS232 Port
The GLP information stored in the instrument’s memory can be sent to a printer or PC via the
RS232 port.
1. Switch the meter on.
2. Connect one end of the RS232 cable to the Power/RS232 socket of the smartCHEM-Titro.
3. Connect the other end of the RS232 cable to an RS232 Printer, or to a Serial port on a PC.
4.
Send the GLP information to the RS232 port (
→
→→
→ F5:GLP →
→→
→ F3:Print
).
The message “
Printing GLP Data
” is displayed while sending the data to the RS232 port.
5. The GLP information is sent to the RS232 port in formatted ASCII text. For example…
smartCHEM-T V1.0 T1234 @ 31/12/2004 13:00
mV Offset= 10.0mV @ 01/04/2004 12:00
pH Asy= 0.10pH @ 01/04/2004 12:10
pH SlopeA= 99.0% @ 01/04/2004 12:20
pH SlopeB= 99.0% @ 01/04/2004 12:30
Temp. Probe Offset= 1.0oC @ 01/04/2004 12:40
ENDS