YSI 95 User Manual

Page 7

Preparing the Meter

Section 2

YSI Incorporated

Model 95

There is a small molded insert inside each of the two battery-chamber sleeves. These labels
illustrate the correct way to install the batteries into each sleeve of the battery-chamber.

CAUTION: It is very important that the batteries be installed ONLY as illustrated. The instrument
will not function and may be damaged if the batteries are installed incorrectly.

Turn the instrument on by pressing and releasing the ON/OFF button on the front of the
instrument. The liquid crystal display (LCD) should come on. Allow a few seconds for the
instrument to complete its diagnostic routine. If the instrument does not operate, consult Section 8,
Troubleshooting.

You may also want to take the instrument into a dark room and with the instrument ON, hold down
the LIGHT button. The instrument back light should illuminate the LCD so that the display can be
easily read.

2.4

2.4 CALIBRATION/STORAGE CHAMBER

CALIBRATION/STORAGE CHAMBER

The Model 95 has a convenient calibration/storage
chamber built into the instrument’s side. This chamber
provides an ideal storage area for the probe during
transport and extended non-use. If you look into the
chamber, you should notice a small round sponge in the
bottom. Carefully put about 10 drops of clean water into
the sponge. Turn the instrument over and allow any
excess water to drain out of the chamber. The wet
sponge creates a 100% water saturated air environment
for the probe that is ideal for dissolved oxygen
calibration.

2.5

2.5 HAND STRAP

HAND STRAP

The hand strap (see figure on previous page) is designed to allow comfortable operation of the
Model 95 with minimum effort. If the hand strap is adjusted correctly, it is unlikely that the
instrument will be easily dropped or bumped from your hand.

To adjust the hand strap on the back of the meter, unsnap the vinyl cover and pull the two Velcro
strips apart. Place your hand between the meter and the strap and adjust the strap length so that your
hand is snugly held in place. Press the two Velcro strips back together and snap the vinyl cover
back into place.

2.6

2.6 METER CASE

METER CASE

The meter case is sealed at the factory and is not intended to be opened, except by authorized
service technicians. Do not attempt to separate the two halves of the meter case as this may
damage the instrument, break the water-proof seal, and may void the manufacturer's
warranty.

Figure 1