wtw 330i - Page 19

pH 330i/340i Operation
19
AutoRead When calibrating with AutoCal TEC and AutoCal DIN, the AutoRead
function is automatically activated.
The current AutoRead measurement can be terminated at any time
(accepting the current value) by pressing <RUN/ENTER>.
Displaying calibration
data
Each time the instrument is switched on, the calibration data are shown
on the display for a short time (see section 4.1 S
WITCHING ON THE MEA-
SURING INSTRUMENT). In order to view the calibration data, switch the
measuring instrument off and switch it on again.
Printing the calibration
record (340i)
The calibration protocol contains the calibration data of the current cal-
ibration. You can transmit the calibration protocol to a printer via the se-
rial interface (see page 40).
Note
You can automatically print a calibration protocol after the calibration.
To do so, connect a printer to the interface according to section 4.5.3
before calibrating. After a valid calibration, the record is printed.
Sample printout:
CALIBRATION PROTOCOL
02.03.99 14:19
Device No.: 12345678
Calibration pH
Cal time: 01.03.99 / 15:20
Cal interval: 7d
AutoCal DIN Tauto
Buffer 1 1.679
Buffer 2 4.008
Buffer 3 6.865
Buffer 4 9.180 *
C1 174.1 mV 25.0°C
C2 -133.3 mV 25.0°C
S1 -59.4 mV/pH
ASY1 - 4 mV
Probe: +++