ENV-03-4

Highly Accelerated Temperature & Humidity Stress Test (HAST) Chamber

Accelerated reliability screening of solid-state devices and components per EIA/JEDEC A110-B. Pressurised cylindrical workspace reaches absorption equilibrium in 24 hours instead of 1000.

110 / 130 degC 85% RH Pressurised cylinder

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Overview

Purpose & Application

The ENV-03-4 HAST chamber accelerates moisture-related reliability screening of semiconductors and electronics per EIA/JEDEC test method A110-B. By raising water vapour pressure inside a pressurised cylindrical workspace, moisture penetration becomes orders of magnitude faster than conventional 85 degC / 85% RH testing. Standard test points: 130 degC / 85% RH for 96 hours or 110 degC / 85% RH for 264 hours. Test duration can be calculated from accelerated reliability models.

Standard Models

Available Sizes

Model	Workspace	Static Load	Shelves
ENV-03-4 Standard	50 cm dia x 40 cm length cylindrical, horizontal	Specify	3 fixed
ENV-03-4-CB	Custom Built cylindrical workspace	Specify	Specify

Pressurised cylindrical workspace with circular hand-locked door. Horizontal orientation.

Technical Specifications

Key Specifications

Test Temperature

110 degC and 130 degC (per EIA/JEDEC A110-B)

Relative Humidity

85% +/- 5% RH

Vapour Pressure

Up to 33.2 psia (230 kPa)

Workspace

Cylinder 50 cm dia x 40 cm length

Sensors

Pt-100 RTD + electronic pressure sensor (4-20 mA)

Humidity Generation

Electrically-operated pressurised boiler

Door

Circular opening with multiple hand-operated threaded wheels

Power Supply

415 V, 50 Hz, 3-phase

Standard Features

Built-in Capabilities

Pressurised cylindrical workspace per EIA/JEDEC A110-B
Standard 130 degC / 85% RH and 110 degC / 85% RH test points
Two-level pressure / leak-proof feed-through for instrumentation
Three fixed shelves for component trays
Active outer chamber for thermal insulation
Pt-100 + electronic pressure sensor (4-20 mA)
%RH control via pressure ratio calculation
Multispan or equivalent controller with optional data logger

Safety Systems

Protection & Reliability

Pressure safety valve on boiler
Over-current relays (OLR) and MCBs
Independent over-temperature protection
Door interlock during pressurised operation
Audio-visual alarm for critical functions
Automatic depressurisation on fault

Request a Quote

Configure Your Chamber

Tell us your testing requirements and we'll design a chamber tailored to your specifications. Our engineers respond within 24 hours.

1. Model Code & Variant

Model Code *

Select Variant Size

ENV-03-4 Standard50 cm dia x 40 cm cylinder

Custom BuiltSpecify cylinder dimensions

2. Specifications

Custom Width (cm)

Custom Depth (cm)

Custom Height (cm)

Static Load (Kg)

Dissipative Load (Watts)

Temperature Range Required

Heating & Cooling Rate (degC/min)

3. Configuration & Add-ons

Condenser Cooling

Port Holes Required

50 mm Diameter 100 mm Diameter 150 mm Diameter

Optional Accessories

Temperature Data Logger NABL Calibration Paperless Chart Recorder Program Controller

4. Your Details

Full Name *

Organisation *

Email *

Phone *

Additional Requirements / Notes

By submitting, you'll receive a tailored quotation from our engineering team within 24 hours. We respect your privacy and never share your information.