Water Level Regulator - Thermo Scientific PRECISION 2878 Installation And Service Manual

Chiron circulating water baths
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ELECTRICAL CONNECTIONS
IMPORTANT
For personal safety, this apparatus must be
properly grounded.
1.
The power cord provided on this unit is equipped
with a three-prong (grounding) plug which
mates with standard three-prong grounding
wall receptacle to minimize the possibility of
electric shock hazard from this apparatus. If
in doubt, the user should have the wall
receptacle and circuit checked by a qualified
electrician to make sure the receptacle can
provide adequate current and is properly
grounded.
The power cord is the MAINS disconnect.
Make sure the receptacle is easily accessible
after installation.
2.
Where a standard two-prong wall receptacle
is encountered, it is the personal responsibility
and obligation of the user to have it replaced
with a properly grounded three-prong wall
receptacle. Do not, under any circumstances,
cut or remove the third (ground) prong from
the power cord. Do not use a two-prong adapter
plug.
Determine the total amount of current being used
by other apparatus connected to the circuit that will
be used for this apparatus. It is critical that the
added current demand (see nameplate) of this and
other equipment used on the same circuit does not
exceed the rating of the fuse or circuit breaker.
CAUTION
BE SURE THAT THE POWER SUPPLY IS OF
THE SAME VOLTAGE AS SPECIFIED ON THE
NAMEPLATE.
TO AVOID BUILD-UP OF MINERAL DEPOSITS
AND TO PREVENT CORROSION, USE ONLY
DISTILLED WATER (50K TO 1M OHMS) IN THE
BATH. DO NOT USE DEIONIZED WATER, OVER
TIME, IT BECOMES CORROSIVE AND WILL
ATTACK STAINLESS STEEL. IF DEIONIZED
WATER IS THE ONLY TYPE AVAILABLE, THEN
USE A MIXTURE OF WATER WITH A RATIO OF
50% DEIONIZED WATER AND 50% TAP WATER.
ELECTROLYSIS CAN DAMAGE STAINLESS
STEEL. THIS CAN OCCUR IF AN OBJECT IS
ALLOWED TO REST DIRECTLY ON THE
SURFACE, TRAPPING MOISTURE THAT
BECOMES OXYGEN STARVED BUT IS
SURROUNDED BY WATER CONTAINING

WATER LEVEL REGULATOR

(OPTIONAL)
INSTALLATION INSTRUCTIONS - Use the
following steps along with Fig. 1 & 2 shown on the
following page.
1.
Turn off unit, disconnect power & drain water
from the bath.
2.
Unscrew drain plug from side of bath body.
3.
Replace with elbow connector (shipped loose).
TO INSURE GOOD SEAL, WRAP THREADS
WITH TEFLON TAPE OR EQUIVALENT
SEALER.
4.
Tighten elbow connector so open end (tube
fitting) faces straight down.
5.
Place Water Level Regulator Bkt. Ass'y on the
lip of the bath pan (drain side of the bath
towards the rear of the unit). The small flange
with gasketing near the top of the bracket
should rest against the inside of the bath pan.
The other 2 flanges with gasketing should
rest against the outside of the bath body.
6.
Insert the plastic tubing (coming from the
bottom of the water level regulator) into the
elbow connector (at the drain) & tighten the
elbow connector fitting firmly to insure a good
seal.
7.
Uncoil Tygon tubing & press onto 1/4" Hose
Barb Fitting (located at the top of water level
regulator).
8.
Hook-up other end of the tygon tubing to water
supply & turn on water. (Water pressure should
fall within the following range: MIN is approx. 15
PSI, MAX is approx 75 PSI)
3
NOTE

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Precision 2879

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