wtw Turb 550, Operating Manual

Page: 30 / 54

Operation
30
the immediate vicinity of the calibration point.
l For a 2 point calibration, you must use 2 calibration stan-
dards next to each other. Measuring is then possible with
a reduced accuracy between the calibration points.
l
To achieve the precision specified in the technical data,
you must perform the calibration using all 3 calibration
standards in the specified sequence.
If the print function is switched on and a printer or PC is con-
nected and switched on, the following printout or display is
output:
DATE: 15 JAN 1999 13:20 Current date
and time
LAST CAL: 17 DEC 1998 17:03
Date and time
of the last ca-
libration
CALIBRATION INTERVAL: 30 DAYS Calibration in-
terval: 30
days
CALIBRATION POINTS: Calibration
points
STANDARD DATE TIME
0.02 NTU 15 JAN 1999 13:20
Calibration
standard
used with
date and time
10.0 NTU 15 JAN 1999 13:20
1000 NTU 15 JAN 1999 13:19
30 DAYS UNTIL NEXT CALIBRATION 30 days until
the next cali-
bration
Sample printout