Emerson ROSEMOUNT 5081-A Instruction Manual page 60

MODEL 5081-A
PRoGRAM
dIagnostIC
EXIt NEXt ENtER
PRoGRAM
PH Cal
EXIt NEXt ENtER
PRoGRAM
baUtO
On
EXIt ENtER
PRoGRAM
buffer
Std
EXIt ENtER
PRoGRAM
stabilise
EXIt ENtER
PRoGRAM
time
1 . 0
EXIt ENtER
PRoGRAM
delta
0 . 02
EXIt ENtER
54
10. once diagnostic limits have been set, the display returns to the dIAgnOStIC sub-
menu header. Press NEXt.
11. the PH CAL submenu header appears. Prompts under this header allow the user to
enable or disable automatic buffer calibration, select the buffers to be used, and set
stabilization criteria for pH calibration. the default settings are:
Automatic buffer calibration
Buffers
Stabilization
to make changes to the pH calibration parameters, press ENtER. Go to step 12.
to leave settings at their default values press EXIt to leave the submenu.
12. the bAUtO (automatic buffer calibration) prompt appears. Press é or ê to toggle
between OFF (disable) or On (enable). Press ENtER to save. Keeping automatic
buffer calibration enabled is strongly recommended.
13. the buFFEr prompt appears. Press é or ê to scroll through the list of available
buffers. See Section 13.1 for a list of the buffer values.
Std Standard buffers
ErC Merck buffers
InG Ingold buffers
din dIN 19267 buffers
Press ENtER to save.
14. the StAbiLiSE (stabilize) prompt appears. to change stabilization criteria, press
ENtER. to leave stabilization criteria at the default values, press EXIt.
15. Set the stabilization time between 0 and 99 seconds. the default value is 10 seconds.
Press ENtER to save.
16. Set the stabilization range to between 0.02 and 0.50 pH. Press ENtER to save.
17. Press RESEt to return to the main display.
on
Standard (see Section 7.8.2)
<0.02 pH in 10 seconds
SECTION 7.0
PROGRAMMING