Hanna Instruments hi 9141 사용자 설명서
9
9
INITIAL PREPARATION
Each meter is supplied complete with batter-
ies. Remove the back cover, unwrap the bat-
teries and install them while paying attention
to the polarity (see also page 33).
ies. Remove the back cover, unwrap the bat-
teries and install them while paying attention
to the polarity (see also page 33).
To prepare the instrument for use, 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. Follow the "Ini-
tial Probe Preparation" procedure explained
on page 8.
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. Follow the "Ini-
tial Probe Preparation" procedure explained
on page 8.
To switch the meter on, press the ON/OFF
key and "Cond" appears on the display to
inform that the probe is in the auto-condition-
ing (polarization) mode. Once the "Cond" dis-
appears, the instrument can be calibrated
(see page 9).
key and "Cond" appears on the display to
inform that the probe is in the auto-condition-
ing (polarization) mode. Once the "Cond" dis-
appears, the instrument can be calibrated
(see page 9).
If the probe is disconnected, the meter will
display "°C ---.-" and print "---- ppm" and
"----°C" to alert the user.
display "°C ---.-" and print "---- ppm" and
"----°C" to alert the user.
This also indicates the possibility of a broken
probe cable.
probe cable.
To maximize battery life, the display is auto-
matically switched off after 4 hours of non-
use. However, the meter will continue to monitor
dissolved oxygen and temperature (if in the
recording/logging mode) .
matically switched off after 4 hours of non-
use. However, the meter will continue to monitor
dissolved oxygen and temperature (if in the
recording/logging mode) .
ON/OFF
°C
1 4 - 0 1 - 9 6
0 0 0 9 * 0 0 . 5 0
- - - - p p m
- - - - ° C
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Untitled-22
10
10
THEN SCREW
BACK ON
THEN TAP
FILL FIRST
INITIAL PROBE PREPARATION
All 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.
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 plas-
tic cap. This cap is for shipping
purposes and can be thrown
away.
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.
in electrolyte (HI 7041S) for
5 minutes.
3. Rinse the membrane cap (HI 76407A sup-
plied in the kit with the meter) with elec-
trolyte solution
while shaking it
gently. Refill with
clean electrolyte
solution.
trolyte solution
while shaking it
gently. Refill with
clean electrolyte
solution.
4. Gently tap the
sides of the mem-
brane cap with
your finger tip to
ensure that no air
bubbles remain
trapped. To avoid
damaging the
membrane, do not
tap the membrane
directly on the bottom.
brane cap with
your finger tip to
ensure that no air
bubbles remain
trapped. To avoid
damaging the
membrane, do not
tap the membrane
directly on the bottom.
5. Make sure that the rubber O-ring sits prop-
erly inside the membrane cap.
6. With the sensor facing down, slowly screw
the cap clockwise. Some elec-
trolyte will overflow.
trolyte will overflow.
When not in use, place the protec-
tive cap supplied in the kit with the
meter.
tive cap supplied in the kit with the
meter.
Shipping
cap
black
red