Precision 280 Series User Manual

2
3. 0GENERAL INFORMATION
3.01 Precision Baths are widely used in research
and quality control. Their superb temperature
uniformity and stability makes them especially
desirable for legal or reference tests.
3.02 The microprocessor control panel houses all
functions necessary to operate the bath.
The push-button keys and single display
window allows the operator to adjust bath
temperature and temperature calibration via
a single set of controls.
3.03 The Proportional Integral Derivative (PID)
temperature control allows precise
temperature control. Use of the gable cover
provided is required to maintain optimal
temperature sensitivity.
3.04 A high limit temperature cutout is provided in
the event of an empty water bath. If the
sensor reads a temperature 5°C higher than
the set temperature, a high temperature cutout
will occur indicated by a display reading of
"EEE," and the heater will be inhibited from
operating. To reset the bath, the power must
be turned off and then back on again. The
high limit temperature cutout is internally set
for 5°C above any set temperature and can
not be set by the user.
3.05 The interior of the bath is constructed of
stainless steel and is designed for operation
with distilled water or water solutions, such
as water ethylene glycol with corrosion
inhibitor's added. The body is made from
galvanized steel and is painted for added
protection. A gable cover is also provided
with the bath.
3.06 The 230-volt units are identical in appearance
to the 120-volt units.
* Each Chamber
Table 3.1 Listing of Models Included in this Manual
Model
Number
Catalog
Number
Electrical Characteristics Capacity
Volts Watts Amps Liters Gallons
280
51221044
51221045
120
230
225
1.9
1
1.5 0.4
281
51221046
51221047
120
230
225
1.9
1
2.5 0.7
282
51221048
51221049
120
230
300
2.5
1.3
5.5 1.5
283
51221050
51221051
120
230
400
3.3
1.7
12.0 3.2
284
51221052
51221053
120
230
600
5
2.6
19.5 5.2
285
51221054
51221055
120
230
600
5
2.6
18.0 4.9
286
51221056
51221057
120
230
1200
10
5.2
43.0 11.4
288
51221058
51221059
120
230
800
6.7
3.5
12.0* 3.2*

Precision 280 Series Specifications

General

Brand	Precision
Model	280 Series
Category	Laboratory Equipment
Language	English