Specifications

4
Introduction
General Specifications
Models F30420C
F30420C-70 & (-60)
F30430CM & (-60)
F30428C
F30428C-70 & (-60)
F30438CM & (-60)
Overall Dimensions IN.
(CM)
Width
Height
Depth
21 1/2 (55)
29 1/2 (75)
25 1/2 (65)
21 1/2 (55)
29 1/2 (75)
25 1/2 (65)
Chamber Dimensions
IN. (CM
Width
Height
Depth
14 (35)
14 (35)
14 5/8 (37)
14 (35)
14 (35)
14 5/8 (37)
Weight Lbs. (KG) 188 (86) 188 (86)
Electrical Ratings Volts
Amps
Watts
Freq.
Phase
240
22.9
5500
50/60
1
208
23.4
5500
50/60
1
Temperature Ratings
°F (°C)
Cont.
Intermittent
400°F-1800°F*
(204°C)-(982°C)
1800°F-2000°F
(982°C)-(1093°C)
400°F-1800°F*
(204°C)-(982°C)
1800°F-2000°F
(982°C)-(1093°C)
* The maximum continuous temperature for ashing furnaces (-60 models) is 1787°F (975°C).
Intended Use
1. The Type 30400 Automatic and Programmable furnaces are general laboratory and heat treating
furnaces. For optimum element life, Thermolyne recommends these furnaces for applications
requiring temperatures from 400°F (204°C) to 1800°F (982°C) for continuous use, or temperatures
from 1800°F (982°C) to 2000°F (1093°C) for intermittent use. Continuous use is operating the
furnace for more than 3 hours and intermittent use is operating the furnace for less than 3 hours.
2. The unit consists of 1) a heating chamber; 2) an automatic proportioning digital set, digital read
control with overtemperature protection and 3) a door interlock relay for user safety.
3. The Type 30400 Programmable furnace is designed to control a programmed temperature profile.
The profile is in the format of ramps and dwell segments. The first ramp, RAMP 1, starts at the initial
measured furnace temperature. This ramp is positive going at a programmed rate until the
programmed level is reached. The setpoint will stay at this level for a period determined by the setting
of DWELL 1. Additional positive or negative going ramps are now initiated starting at the level at the
end of DWELL 1. When the second ramp reaches the second programmed level, the setpoint stays
at that level for the duration of the segment. Depending upon the model ordered, additional ramp
and dwell segments may be added. See specific model number below for total number of program
segments.
MODEL NUMBER DIGITAL
COMMUM.
NUMBER OF
RAMP
SEGMENTS
NUMBER OF
DWELL
SEGMENTS
NUMBER OF
STORED
PROGRAMS
F30420C-70 & (-60) NO 2 2 1
F30428C-70 & (-60) NO 2 2 1
F30430CM & (-60) YES 8 8 4
F30438CM & (-60) YES 8 8 4