Hanna Instruments HI 98186 - Manual (Page 10)

10
To take measurements, connect the D.O. probe to the meter securely by
aligning the pins with the socket located on the top of the meter, pushing the
plug in and tightening the threaded ring.
Probes shipped from Hanna Instruments
are dry. To hydrate the probe and prepare
it for use, connect it to the meter and
proceed as follows:
1. Remove the red and black plastic cap.
This cap is for shipping purposes and can
be thrown away.
2. Wet the sensor by soaking the bottom
2½ cm (1") of the probe in electrolyte
(HI 7041S) for 5 minutes.
3. Rinse the membrane cap (HI 76407A)
supplied in the kit with the meter) with
electrolyte solution while shaking it gently.
Refill with clean electrolyte solution.
4. Tap gently the sides of the membrane
cap with your finger tip to ensure that no
air bubbles are trapped. To avoid damag-
ing the membrane, do not tap it directly
on the bottom.
5. Make sure that the rubber O-ring sits
properly inside the membrane cap.
6. With the sensor facing down, slowly
screw the cap clockwise. Some electrolyte
will overflow.
When not in use and during polarization
(see PROBE CONDITIONING page 11), use the protective transparent cap
supplied in the kit with the meter.
PROBE CONNECTION AND PREPARATION PROBE CONNECTION AND PREPARATION PROBE CONNECTION AND PREPARATION PROBE CONNECTION AND PREPARATION PROBE CONNECTION AND PREPARATION