Xylem Oxi 1970i PORTABLE DISSOLVED OXYGEN METERS Manual de usuario descargar pdf (Pagina 23)

Oxi 1970i Operation

ba75691e01 01/2007

4.3.1 Calibrating with the air calibration vessel

Proceed as follows to calibrate the instrument:

Note

The sponge in the air calibration vessel must be moist (not wet). Follow

the instructions in the OxiCal

-SL or DurOx 325 operating manual.

1 Connect the D. O. sensor to the measuring instrument.

2 Keep an air calibration vessel ready for use.

3 Put the D. O. sensor into the air calibration vessel.

4 Press the <CAL> key repeatedly until O

CAL appears.

5 Press the <RUN/ENTER> key. AutoRead is active, AR flashes.

6 As soon as a stable value is achieved, AR stops flashing. Cal-

ibration is finished; the sensor symbol indicates the relative

slope determined and the sensor evaluation (see page 22).

REL1

Year

Ident

No.

Day.Month

Tref25 Tref20

LoBat

Lin

nLF

mg/l

ARng

Sal

TEC

Auto

Store

Time Baud

Sal

RCL

REL2

pH/mV

1 7 6

Oxi

Cal