Model 140 Temperature Chamber Specifications
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| 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 |
10 min |
25 min |
34 min |
42 min |
Ultimate |
| +85°C |
12 min |
18 min |
31 min |
38 min |
45 min |
Ultimate |
| +150°C |
25 min |
32 min |
45 min |
51 min |
58 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 +85°C to -40°C = 125°C / 31
min = 4.03°C/min.
Heat Up Example: From -40°C to +85°C = 125°C / 17
min = 7.35°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 |
| Heat of Rejection |
14,800 BTUH (maximum rated chamber load at maximum cooling
rate from high temperature soak) |
| Heater Power |
1,500 Watts (at 208 V input) |
| Instrumentation |
| Temperature Controller |
256 step, 40 profile, ramp and soak programmable memory.
RS-232/485 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. |
| Input Power Requirements |
|
| Input Voltage |
208 V -5/+10%, 1 PH, or 230 V ±10%, Single Phase, 60 Hz
Max Current Draw 25 A; Required Service 30 A |
| Power Cord and Plug |
Power cord, 14-feet, with a molded NEMA L6-30P plug  |
| Operation at 50 Hz requires internal transformer
option TE-0725. Cooling performance is reduced 17% at 50 Hz. |
| Physical
Characteristics and Safety |
| Inside Dimensions |
22"W x 18"H x 18"D (4 cubic feet) |
| Outside Dimensions |
30"W x 64"H x 42"D (nominal)
Door latch adds 3" to width on right side. |
| 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 silicone foam plugs |
| Weight |
Chamber Weight: 800 pounds
Shipping Weight: 950 pounds |
| Sound Level |
62 dBA in cooling mode (A-weighted, measured 36" from the front
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. |
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