TestEquity 123H, Operation And Service Manual

Page: 49 / 77

Chapter 7 – Specifications
TestEquity 123H Temperature/Humidity Chamber Page 7-1
Chapter 7 – Specifications
Model 123H Chamber Specifications
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)
Standard Humidity Range 10% to 95%, in the temperature range of 10°C to 65°C limited by a 6°C dewpoint;
90% over 65°C up to 85°C. See chart on page 4-6.
Control Tolerance ±3%RH (Measured at the control sensor after stabilization)
Live Load Capacity @ +23°C 0°C –40°C –55°C –65°C
500 W 400 W 225 W 175 W 100 W
(Live load capacity is for non-humidity mode)
Cool Down Transition Time* End Temp
Start Temp to

+23°C 0°C –40°C –55°C –65°C –68°C
+23°C ---- 6 min 31 min 51 min 68 min ultimate
+50°C 7 min 16 min 44 min 62 min 82 min ultimate
+85°C 18 min 28 min 54 min 82 min 101 min ultimate
+150°C 43 min 54 min 87 min 108 min 129 min ultimate
Heat Up Transition Time* End Temp
Start Temp to

+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 3 min 9 min 18 min 32 min 41 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
*Note: Transition times are measured after a 2-hour soak at the start temperature with an empty chamber.
Input Power 120 V nominal (110 to 126 VAC), 60 Hz, 1 PH
Max Current Draw 18 A, Recommended Minimum Service 20 A (dedicated line)
Workspace 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). Vent tube adds 3" to height.
Min. Installed Clearance 6" from the left and right side, 12" from the rear
Access Ports 4" Port on left and right side (two total), Supplied with foam plugs
Sound Level 62 dBA (A-weighted, measured 36" from the front)
Weight 750 pounds
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.