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Data Sheet
| Temperature
Range |
-73°C
to +175°C |
| Control
Tolerance |
±0.2°C (Measured
at the control sensor after stabilization) |
| Uniformity |
±0.5°C (Variations
throughout the chamber after stabilization) |
Cool Down Transition
Time* |
| Start
Temp |
End Temp |
| +23°C |
0°C |
-40°C |
-55°C |
-65°C |
-73°C |
| +23°C |
----- |
4
min |
18
min |
25
min |
33
min |
Ultimate |
| +50°C |
5
min |
11
min |
27
min |
36
min |
45
min |
Ultimate |
| +85°C |
13
min |
20
min |
37
min |
47
min |
55
min |
Ultimate |
| +150°C |
32
min |
39
min |
58
min |
65
min |
76
min |
Ultimate |
| |
Heat Up Transition Time* |
| Start
Temp |
End Temp |
| +23°C |
+50°C |
+85°C |
+125°C |
+150°C |
+175°C |
| +23°C |
----- |
1.5
min |
7
min |
14
min |
20
min |
Ultimate |
| 0°C |
1.5
min |
3.5
min |
13
min |
20
min |
23
min |
Ultimate |
| -40°C |
6
min |
11
min |
17
min |
24
min |
30
min |
Ultimate |
| -55°C |
8
min |
13
min |
19
min |
26
min |
32
min |
Ultimate |
| -65°C |
10
min |
14
min |
21
min |
28
min |
34
min |
Ultimate |
Rate Of Change
To calculate rate of change for a particular condition, take the
difference between the Start Temp and End Temp and divide by the
Transition Time.
Cool Down Example: From +50°C to -40°C = 90°C / 27 min =
3.33°C/min.
Heat Up Example: From -40°C to +50°C = 90°C / 11 min = 8.18°C/min.
*Note: Transition
times are measured after a 2 hour soak at the respective start
temperature with an empty chamber. |
| Live
Load Capacity |
| +23°C |
0°C |
-40°C |
-55°C |
-65°C |
| 1,000
Watts |
800
Watts |
500
Watts |
400
Watts |
300
Watts |
Refrigeration
and Heating System |
| High
Stage Refrigerant |
R-404A
(Dupont HP-62) |
| Low
Stage Refrigerant |
R-508B
(Dupont SUVA-95) |
| Compressors |
1
HP x 1 HP Copeland hermetic compressors in a cascade configuration. |
| Condenser |
Air
Cooled |
| Heater
Power |
2,000
Watts |
| |
Instrumentation |
| Temperature
Controller |
256
step, 40 profile, ramp and soak programmable memory. RS-232
interface.
More details >> |
 |
| Limit
Controller |
Independent
high and low temperature limits. Triggers an audible alarm and
shuts down the chamber. Relay contacts provide a safety power interlock
for test sample. |
| Chart
Recorder |
(Optional)
Honeywell DR4300 Series. One pen, 10" circular chart. Mounts in
lower front door. |
 |
Input
Power Requirements |
| |
Phase |
Current
Draw |
Minimum
Service |
| 230
V ±10%, 60 Hz |
1 PH |
25
A |
30
A |
| 3 PH |
19
A |
25
A |
| |
| 208
V -5/+10%,
60 Hz |
1 PH |
28
A |
35
A |
| 3 PH |
21
A |
30
A |
Input
may be configured for single or three phase in the field by changing
jumpers. Three phase load is semi-balanced. Call for 50 Hz operation.
Cooling performance is reduced 17% at 50 Hz.
Customer power
source must be hard-wired to the chamber by a qualified electrician.
Power cord and plug is not included. |
Physical
Characteristics |
| Inside
Dimensions |
24"
W x 21" H x 24" D (7 cubic feet) |
| Outside
Dimensions* |
33"
W x 67.75" H x 54.25" D (nominal)
* Door latch adds 3" to width on right side (may be removed
to permit move-in through a 36" doorway). Circulator motor and
housing adds 6" to height. |
| Minimum
Installed Clearance |
18"
from the left and right side
24" from the rear |
| Window
Viewing Area |
13.5"
W x 11.5" H |
| Access
Ports |
4"
Port on left and right side (two total)
Supplied with foam plugs |
| Weight |
Chamber
Weight: 850 pounds
Shipping Weight: 1,000 pounds |
| Sound
Level |
62
dBA in cooling mode (A-weighted, measured 36" from the front
or side surface, 63" from the floor, in a free-standing environment) |
NOTE: Performance
is typical and based on operation at 23°C (73°F) ambient and
nominal input voltage. Designed for use in a normal conditioned
laboratory. Operation at higher ambient temperatures may result
in decreased cooling performance. Additional ports and shelves
will also affect performance. Operation above 30°C (85°F) or
below 16°C (60°F) ambient is not recommended. |
|
