73
MODEL 5081-A
SECTION 10.0
CALIBRATION - FREE CHLORINE
9. the
Pt1
prompt appears. use the arrow keys to change the flashing
display to the concentration of chlorine determined in the grab sample.
Press ENtER to save.
10. the
CAL Pt 2
prompt appears. Adjust the concentration of chlorine until
it is near the top end of the range, i.e., near concentration C2 shown in
Figure 10-2. Press ENtER.
11. the
tiME dELAy
message appears and remains until the sensor read-
ing meets the stability criteria set in Section 7.6. to bypass the time
delay, press ENtER.
12. the
GrAb SPL
(grab sample) prompt appears. take a sample of the
process liquid and immediately determine the concentration of free
chlorine in the sample. Press ENtER.
13. the
Pt2
prompt appears. use the arrow keys to change the flashing dis-
play to the concentration of chlorine determined in the grab sample.
Press ENtER to save.
14. Press RESEt to return to the main display.
CALIBRAtE
Cal pt2
EXIt
NEXt ENtER
CALIBRAtE
Grab spl
EXIt
ENtER
CALIBRAtE
time delay
EXIt
NEXt
CALIBRAtE
Pt1
EXIt
ENtER
3
.00
CALIBRAtE
Pt2
EXIt
ENtER
6
.00
