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TestEquity LLC, Environmental Chamber Division Environmental Chambers for Temperature and Humidity Testing
   TestEquity Model 1016H Temperature/Humidity Chamber - Specifications

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Temperature Range -73C to +175C
Control Tolerance 0.2C (Measured at the control sensor after stabilization)
Uniformity 0.5C (Variations throughout the chamber after stabilization)
Humidity Range

Standard Range:
10% to 95%

(limited by a minimum 6°C dewpoint and maximum dry bulb of +85°C)

With optional GN2 Purge or Dry Air Purge: 5% to 95%
(Dry bulb range of +10°C to +85°C)

Temp/Humidity Range

Control Tolerance 3% RH
Display Resolution 0.1% RH
Humidity Sensor Dynamic capacitive type (no wet wicks required)

Cool Down Transition Time* (uncontrolled humidity mode)
Start Temp End Temp
+23°C 0°C -20°C -40°C -55°C -63°C
Time from +23°C:
----- 1 min
5 min
10 min
15 min
20 min
Time from +85°C:
7 min
12 min
17 min
23 min
29 min
35 min
Heat Up Transition Time* (uncontrolled humidity mode)
-40°C to +85 °C 15 minutes (8.3°C/minute)

*Note: Transition times are measured after a 2 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. Performance is reduced by 17% with 50 Hz input power.

Live Load Capacity (uncontrolled humidity mode)
+23C 0C -40C -55C -65C
2,900 Watts 2,600 Watts 2,300 Watts 1,450 Watts 1,050 Watts

Refrigeration and Heating System

High Stage Refrigerant R-404A (Dupont HP-62)
Low Stage Refrigerant R-508B (Dupont SUVA-95)
Compressors 3.5 HP x 3.5 HP Copeland scroll compressors in a cascade configuration.
Condenser Air Cooled
Heat of Rejection 27,500 BTUH (maximum rated chamber load at maximum cooling rate from high temperature soak)
Air Heater Power 4,200 Watts @ 208 V Input
Air Flow 630 cfm


Temp/Humidity Controller Watlow F4 Controller with RS-232 interface, LED readout of temperature, LCD display of humidity and other parameters (standard).
Watlow F4T Touch Screen Controller with RS-232, Ethernet interface, 4.3" color graphic touch screen (optional).
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. Two pen, 10" circular chart. Mounts in lower front door.

Input Power Requirements

230 V 10%, 60 Hz, 3 Phase Max Current Draw 39 A; Recommended Service 50 A
208 V -5/+10%, 60 Hz, 3 Phase Max Current Draw 35 A; Recommended Service 45 A

Input may be configured for 230 V or 208 V in the field by changing jumpers. Call for other voltages or 50 Hz operation. Performance is reduced by 17% with 50 Hz input power.

Customer power source must be hard-wired to the chamber by a qualified electrician. Power cord and plug is not included.

Humidity Water Requirements

Supply and Drain

Must be provided with a water line and floor drain or optional Water Recirculation System. Negligible consumption.

Water Recirculation System (optional) Provides a reliable supply of filtered water for the humidity system. Perfect for installations where a water line and drain are not available.

Physical Characteristics

Inside Dimensions

30" W x 30" H x 30" D (15.6 cubic feet)
762 mm W x 762 mm H x 762 mm D (442 liters)

Outside Dimensions 38" W x 78.5" H x 56" D (nominal)
914 mm W x 1994 mm H x 1422 mm D
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 18" W x 12" H
Access Ports 4" Port on left and right side (two total)
Supplied with foam plugs
Weight Chamber Weight: 1,130 pounds
Shipping Weight: 1,280 pounds
Sound Level 68 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 improvements, specifications subject to change without notice.

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