BHD-202 Environmental Test Chamber

Interior:	15W x 16D x 15H (in)
	381W x 406.4D x 381H (mm)
Exterior:	48.2W x 34.1D x 26.2H (in)
	1224.3W x 866.2D x 665.5H (mm)
Volume:	2.08 cubic ft
	58.89 liters
Temperature:	-70°C to 180°C (-94°F to 356°F)
Temperature Stability:	±0.5°C (±1.0°F) at sensor after stabilization
Humidity:	10-95% RH, limited by +4°C Td   (for 98% add option)
Humidity Fluctuation:	±2% RH at sensor
Rise Rate*:	6°C/min
Pull Down Rate*:	3°C/min
Electrical Supply:	120 VAC, 1 PH, 60 HZ (Optional) 50HZ (Optional) 100VAC
Facility Power Receptacle:	6' NEMA L5-30
Full Load Amps:	28 A
Compressed Air Requirements:	30PSI
Airflow:	100 CFM
Thermal Heat Rejection (ThoR):	-MAX: 6,000 BTU/HR -MIN: 3,000 BTU/HR
Nationally Recognized Test Lab:	UL 61010-1
Refrigeration System:	Cascade
Refrigerant:	High Stage: R-404a Low Stage: R-508b (Optional) R-449a
Mobility:	Will fit through 36 in doorway
Approximate Product Weight:	462 lbs (210 kg) without added options
Approximate Shipping Weight:	572.0 lbs (259 kg) without added options

*Rise and pull-down rates calculated using IEC 60068-3-5 standard. Custom options available.

*Ideal ambient temperature conditions for test chambers is 23°C (73.4°F). The temperature and humidity range of assured performance is between 15°C and 25°C (59°F/77°F) and 30-50% relative humidity. Conditions outside this range may affect the performance of your test chamber and reduce the lifespan of the equipment.

BHD Series

Height: 72" (6' tall)

BHD-202 BHD-502

Height: 25.5"
Volume: 2.083 cu. ft.

BHD-208 BHD-508 BHD-508-ATP

Height: 35"
Volume: 8 cu. ft.

BHD-508-SAFE

Height: 35"
Volume: 8 cu. ft.

BHD-508-ATP-B

Height: 80.8"
Volume: 16 cu. ft.

STANDARD FEATURES

• Exterior structure is heavy-gauge, cold-rolled steel with powder coat bone color and matte finish
• Interior cabinet: stainless steel, type 304
• Interior light with exterior switch on cabinet face and operable on AESONE CONNECT
• Port configuration: right wall access port and plug with 3in (76.2mm) diameter
• Fully adjustable shelf, 1 wire-grid shelf, stainless steel
• Forced air circulation
• Gas inlet compatible with GN2 purge and dry air purge
• Multipane 12 in x 12 in heated viewing window 
• Full opening door with adjustable manual latch

ADDITIONAL ONBOARD INSTRUMENTATION

CONTROLLER:

WATLOW F4T PROGRAMMABLE CONTROLLER. Features a 4.3" capacitive touchscreen, minimizing the chance for error. Ethernet communication supported by AESONE CONNECT®. View controller options

SENSORS:

• RTD — 100 OHM PLATINUM: Measured at the point of airflow entering the workspace. Class A, 3-wire platinum resistance sensor. Standard on all chambers.
• VAISALA HMM100 RELATIVE HUMIDITY SENSOR: Measured at the point of airflow entering the workspace. Airflow speed does not affect measurement. Highly accurate between 10–95% RH over the entire operating range of −70°C to +180°C (−94°F to +356°F). Standard on all humidity chambers.
• TYPE T THERMOCOUPLE: Connects to the limit controller for safety monitoring. (Additional Purchase)
• HIGH HUMIDITY HEATED SENSOR: Replaces the standard RH sensor and enables testing up to 98% RH. The heated probe prevents condensation and maintains accuracy across high humidity, vacuum, and pressurized environments. (Upgrade Available)
• View all sensor options

OPTIONAL DATA LOGGERS: View data logger options

STANDARD SAFETY FEATURES

• HIGH/LOW TEMPERATURE CONTROL. An adjustable temperature limit controller allows you to program the highest and lowest temperature of the device under test, protecting products from compromising temperature exposure.
• Over temperature heat fusing
• Refrigeration system over-pressure safety circuit
• Low-water steam generator over-temperature circuit
• TUV Rheinland certified meeting UL 61010-1, US, C, E

• Shelf Modification 
• Custom Porting Sizes
• Custom window size
• LN2 Boost Cool
• CO2 Boost Cool
• Self Contained Water Recirculating System
• Water Demineralizer Cartridge System
• High Humidity Sensor to extend the humidity range up to 98% RH
• Desiccant Air Dryer to reach conditions as low as 5% RH 
• Floor Stand with Casters
• Stackable Test Chamber Stand with Casters

APPLICATIONS

The BHD Series is AES's line of compact, benchtop temperature and humidity test chambers a versatile chamber used across a wide range of industries for product, component, and materials validation under combined thermal and humidity conditions. With 10–95% RH range and precise ±2% RH stability paired with uniform temperature control, the BHD Series gives engineers a reliable way to simulate real-world climates in a compact footprint that fits almost any lab. From stability testing and regulatory qualification to humidity cycling and everyday environmental validation, the BHD Series adapts to the unique demands of each industry it serves.

HIGHLIGHTED INDUSTRIES

Learn more about the industries we serve here.

• Consumer Electronics
• Medical Devices
• Pharmaceuticals
• Semiconductor
• Packaging
• Consumer Products
• Paints & Coating
• Automotive
• Aerospace & Aviation
• Military & Defense

View Print Version

BHD Series Brochure

AESONE CONSOLE Brochure

F4T Controller Example Profile

RH Chart

Dew Point Calculator

Input your values and press calculate to see results.

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