Hach-Lange SENSION+ 50 49 User Manual - Manual (Page 9)

5. Rinse the probe(s)
with deionized water.
Blot dry with a lint-free
cloth. 6. Put the storage tube
in the corresponding
sensor and turn to
tighten. 7. Push Calibrate to
measure the calibration
solution. 8. When the reading is
stable, the meter
prompts for the next
calibration point.
Repeat steps 4–7 for
additional standard
solutions. The
calibration is complete
when the last standard
solution is read. The
meter shows briefly the
message "CAL OK" if
the calibration is
accepted.
Calibration procedure — DO probe, water-saturated (100%) air
1. Set the meter to on.
If the dissolved oxygen
probe is not polarized,
polarize the probe, refer
to
Polarize the
dissolved oxygen probe
on page 5.
2. Push Calibrate. The
parameter flashes on
the meter display. Use
the arrow keys to
change the parameter
to DO. 3. Push Calibrate
again to confirm the DO
parameter. "100.0%"
flashes on the meter
display.
Note: The probe can
also be calibrated at
zero oxygen standard.
Use the arrow keys to
select 0% on meter. 4. Rinse the probe(s)
with deionized water.
Blot dry with a lint-free
cloth.
English 7