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BHD-202

BHD-202 - Temperature with Humidity

Overview

The BHD-202 is a benchtop-style environmental test chamber for temperature and humidity testing.  The chamber is designed to fit on your lab table and still have easy and safe access when you reach-in the workspace.  

If you are concerned about losing your lab counter space, this test chamber has an optional floor stand for one chamber or get double the test workspace when you stack two BHD Test Chambers in the same footprint.

STRUCTURE.  The internal workspace is lined with type 304 stainless steel for a vapor-tight internal construction. The exterior has a durable powder-coat finish over heavy-gauge steel for a long-lasting clean look. Between the two layers is highly-efficient, low k-factor, thermal insulation. This chamber is built to last for many years.

CIRCULATION SYSTEM.  Air circulation is crucial for environmental testing. The BHD-202 Test Chamber has a proprietary baffle and fan design combination. This optimizes temperature and humidity conditions within the workspace. 

HEATING SYSTEM.  BHD test chambers feature heating systems equipped with open ceramic-core nichrome heaters for reliable and accurate temperature control within ±0.5°C.

HUMIDITY SYSTEM.  The humidity system has a standard range between 20% and 95%. To extend your humidity range, see the optional features section.  

COOLING SYSTEM.  The cooling system in the is BHD-202 consists of a self-contained, compact, single-stage, mechanical refrigeration system with an air-cooled condenser. An optional water cooling condenser is available. 

Add boost cooling with liquid LN2 or CO2 to shorten pull-down times; it's a great option for stress tests that require rapid cooling.

INSTRUMENTATION. BHD-202 Test Chamber incorporates AESONE CONNECT creating a robust connected device giving you a standard and uniform interface that makes operation easier. Learn more in the Instrumentation Tab below.

ALTERNATIVE TEMPERATURE RANGES:

  • BHD- 502 -40°C to +180°C (-40°F to +356°F)
Scaled Image of BHD-202

Specifications

Interior: 15.0W x 16.0D x 15.0H (in)
  381.0W x 406.4D x 381.0H (mm)
Exterior: 47.5W x 34.0D x 25.5H (in)
  1206.5W x 863.6D x 647.7H (mm)
Volume: 2.08 cubic ft
  58.98 liters
Temperature: -70°C to 180°C (-94°F to 356°F)
Humidity: 10-95% RH, limited by +4°C Td (for 98% add option)
Humidity Fluctuation: ±2% RH at sensor
Rise Rate*: 3.88 °C/min
Pull Down Rate*: 1.29 °C/min
Electrical Supply:  120 VAC, 1 PH, 60 HZ
Full Load Amps: 28 A
Power Requirement: NEMA L5-30
Mobility: Will fit through 36 in doorway

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

Standard Features

STANDARD FEATURES

  • Temperature range: -70°C  to 180°C (-94°F to +356°F)
  • 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 purge control compatible with desiccant air dryer and GN2
  • Multipane 12 in x 12 in heated viewing window 
  • Full opening door with adjustable manual latch
  • Internal workspace is type 304 stainless steel

Instrumentation

STANDARD INSTRUMENTATION

CONTROLLER   AESONE CONNECT allows for secure remote access to your test chamber and gives easy profile creation, operational control, and data management.

BHD Series Test Chambers have upgraded to include AESONE CONNECT creating a robust connected device for a standard and uniform interface making test chamber operation easier.

AESONE XCHANGE is hardware internal to the chamber that increases your functionality

  • Connects the test chamber controller to your network for increased accessibility
  • On-board multi-year data logging

AESONE SOFTWARE gives you the power to

  • Remote chamber operation and monitoring, 
  • Web-based test profile creation, 
  • Viewing current data and historical data visually
  • Secure multi-level user access 

ADDITIONAL ONBOARD INSTRUMENTATION

WATLOW F4T PROGRAMMABLE CONTROLLER. Features a 4.3” capacitive touchscreen minimizing the chance for error. Ethernet communication supported by AESONE HARDWARE. View more controller options

SENSORS.

  • TEMPERATURE SENSOR. Measured at the point of airflow entering the workspace. Class A, 3-wire, 100 Ohm Platinum RTD sensor
  • RELATIVE HUMIDITY SENSOR. Measured at the point of airflow entering the workspace. Speed of airflow does not affect measurement. Sensor is highly accurate between 10-95% RH, over the entire temperature operating range of -70°C to +180°C (-94°F to +356°F)
  • View sensor options

OPTIONAL DATA LOGGERS. View additional data loggers

Safety Features

STANDARD SAFETY FEATURES

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

Optional Features

  • Shelf Modification 
  • Custom Porting Sizes
  • Custom window size
  • LN2 Boost Cool
  • CO2 Boost Cool
  • Water Cooled Condenser
  • 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 
  • Dry Nitrogen Purge to keep condensation and frost from accumulating on DUT surfaces at cold temperatures and to prevent oxidation of metals surfaces at high temperatures
  • Floor Stand with Casters
  • Stackable Test Chamber Stand with Casters