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| Temperature
Range |
-68°C
to +175°C |
| Control
Tolerance |
±0.5°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 |
-68°C |
| +23°C |
----- |
6
min |
27
min |
41
min |
55
min |
Ultimate |
| +85°C |
18
min |
28
min |
54
min |
70
min |
85
min |
Ultimate |
| |
| Heat
Up Transition Time* |
| Start
Temp |
End
Temp |
| +23°C |
+50°C |
+85°C |
+125°C |
+150°C |
+175°C |
| +23°C |
----- |
2
min |
12
min |
24
min |
33
min |
Ultimate |
| 0°C |
1.5
min |
3.5
min |
13
min |
20
min |
23
min |
Ultimate |
| -40°C |
9
min |
16
min |
25
min |
39
min |
48
min |
Ultimate |
| -55°C |
14
min |
18
min |
31
min |
44
min |
53
min |
Ultimate |
| -65°C |
15
min |
21
min |
32
min |
45
min |
54
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 +85°C to -40°C = 125°C
/ 54 min = 2.3°C/min.
Heat Up Example: From -40°C to +85°C = 125°C
/ 25 min = 5.0°C/min.
*Note: Transition
times are measured after a 2 hour soak at the respective start
temperature with an empty chamber. Measured with setpoint beyond
the start and end temperatures. Does not include the effect of
proportional band when approaching setpoint. |
| Live
Load Capacity |
| +23°C |
0°C |
-40°C |
-55°C |
-65°C |
| 500
Watts |
400
Watts |
225
Watts |
175
Watts |
100
Watts |
Refrigeration
and Heating System |
| High
Stage Refrigerant |
R-404A
(Dupont HP-62) |
| Low
Stage Refrigerant |
R-508B
(Dupont SUVA-95) |
| Compressors |
1/2
HP x 1/3 HP Copeland hermetic compressors in a cascade configuration. |
| Condenser |
Air
Cooled |
| Heat
of Rejection |
5,000
BTUH (maximum rated chamber load at maximum cooling rate from high
temperature soak) |
| Air
Heater Power |
1,000
Watts (500 Watts when compressors are running) |
| Humidifier
Heater Power |
750
Watts |
| |
Instrumentation |
| Temp/Humidity
Controller |
256
step, 40 profile, ramp and soak programmable memory. RS-232C
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 |
Input
Voltage |
120
V nominal (110 to 126 VAC), 60 Hz, 1 PH
Max Current Draw 18 A, Recommended Minimum Service 20 A |
Power
Cord
and Plug |
| 6' Power
cord supplied with a molded NEMA 5-20P plug. |
 |
Plugs
into a standard NEMA 5-20R receptacle.
Use of an extension cord is not recommended. |
 |
|
Physical
Characteristics |
| Inside
Dimensions |
18" W
x 16.5" H x 13.5" D (2.3 cubic feet) |
| Outside
Dimensions |
26" W
x 63" H x 36.5 " D (nominal)
|
| Minimum
Installed Clearance |
6"
from the left and right side
12
" from the rear |
| Window
Viewing Area |
7"
W x 12" H |
| Access
Ports |
4"
Port on left and right side (two total)
Supplied with foam plugs |
| Weight |
Chamber
Weight: 600 pounds
Shipping Weight: 700 pounds |
| Sound
Level |
62
dBA in cooling mode (A-weighted, measured 3" 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.
Due to continuous
product development, specifications are subject to change without
notice. |
|
