Chapter 7 – Specifications
TestEquity 115A-EX Temperature Chamber
Page 7-1
Chapter 7 – Specifications
Model 115A-EX Chamber Specifications
Temperature Range
–73°C to +175°C
Control Tolerance
±0.2°C (Measured at the control sensor after stabilization)
Uniformity
±1.0°C (Variations throughout the chamber after stabilization)
Live Load Capacity @
+23°C
0°C
–40°C
–55°C
–65°C
300 W
255 W
160 W
110 W
80 W
Cool Down Transition Time*
End Temp
Start Temp to
+23°C
0°C
–40°C
–55°C
–65°C
–73°C
+85°C
20 min
32 min
60 min
77 min
96 min ultimate
Heat Up Transition Time*
4°C per minute typical
*Note:
Transition times are measured after a 1 hour soak at the respective start temperature with an empty chamber,
as indicated on the temperature controller, 23°C ambient. Measured with setpoint beyond the start and end
temperatures. Does not include the effect of proportional band when approaching setpoint.
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 hermetic compressors in a cascade configuration.
Condenser
Air Cooled
Heater Power
600 Watts
Input Power
230 VAC nominal (209 to 253 VAC), 50 Hz, 1 PH
Max Current Draw 8 A, Recommended Minimum Service 10 A
Workspace Dimensions
16" W x 12" H x 14" D (1.55 cubic feet)
Outside Dimensions
Bench Version 24" W x 44" H x 26" D (nominal)
Floor Version 24" W x 61" H x 26" D (nominal)
Min. Installed Clearance
6" from the left and right side, 12" from the rear
Access Ports
3" Port on left and right side (two total), Supplied with foam plugs
Weight
115A-EX-B:
Bench Version, 260 pounds.
115A-EX-F:
Floor Version, 300 pounds.
Sound Level
52 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. This
product is designed for use in a normal conditioned laboratory. Operation at higher ambient temperatures will 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.
