Programmable Control Temperature Humidity Fast Change Rate Test Machine for testing industrial laboratory products, such as bags, footwear, leather products, environment, toys, baby products, hardware, electronic products, plastic products, rubber products.
Environmental stress screening (ESS) refers to the process of exposing a newly manufactured or repaired product or component (typically electronic) to stresses such as thermal cycling and vibration to force latent defects to manifest themselves by permanent or catastrophic failure during the screening process. The surviving population, upon completion of screening, can be assumed to have higher reliability than a similar unscreened population.
F-TH-150 / 225 / 408 / 800 (A~F) — Rapid 3–20 °C/min Linear Ramp, Optional Humidity Control
| Parameter | F-TH-150 (A~F) | F-TH-225 (A~F) | F-TH-408 (A~F) | F-TH-800 (A~F) |
|---|---|---|---|---|
| Internal Dimension W×H×D (mm) | 500 × 600 × 500 | 600 × 750 × 500 | 600 × 850 × 800 | 1000 × 1000 × 800 |
| External Dimension W×H×D (mm) | 1100 × 1750 × 1600 | 1200 × 1800 × 1700 | 1250 × 1900 × 1900 | 1600 × 2050 × 2150 |
| Temperature Range | −70 °C ~ +150 °C | |||
| Range of Fast Temperature Change | −45 °C ~ +85 °C | |||
| Maximum Ramp Rate | Up to 20 °C/min under full linear control | |||
| Rising / Falling Velocity | Linear control: 3 ~ 20 °C/min, adjustable | Nonlinear control: 3 ~ 30 °C/min, adjustable | |||
| Humidity Range (Optional) | 20% ~ 98% R.H. — 10%–98% or 5%–98% available with dehumidifier | |||
| Indication Resolution | 0.1 °C / 0.1% R.H. | |||
| Distribution Uniformity | ± 2.0 °C / ± 3.0% R.H. | |||
| Control Accuracy | ± 0.5 °C / ± 2.5% R.H. | |||
| Internal and External Material | Inner box: SUS 304# stainless steel. Outer box: stainless steel or cold-rolled steel with paint coating. | |||
| Insulation Material | High-temperature resistant, high-density, formate chlorine / ethyl acetate foam insulation materials | |||
| Cooling System | Water-cooled / single-stage compressor; environmentally friendly refrigerant R23 / R404A | |||
| Compressor | French Tecumseh brand; Germany Bizer brand | |||
| Protection Devices | Fuse-free switch; compressor overload protection; high/low pressure coolant protection; over-humidity and over-temperature protection; fuses; fault warning system; water shortage warning | |||
| Optional Accessories | Inner door with operation hole; water purifier; dehumidifier; recorder | |||
| Communication | RS-232 or RS-485 | |||
| Power | AC 380 V 3-phase 5-wire, 50/60 Hz | |||
| Weight (Approx.) | 250 kg | 350 kg | 450 kg | 600 kg |
Need a different chamber size, humidity range, or a specific test standard? Send us your DUT spec and test profile — our team will recommend a configuration and quote within 24 hours.
Each chamber is assembled, wired, and functionally tested in our own facility before shipment.
Match the ramp profile and humidity capability to your test standard — the chamber is built to your specification.
A constant ramp rate from start to finish. This is the mode used for standards that define a fixed rate per minute — for example, certain automotive and battery cycling profiles.
Ramp rate varies across the profile. This mode is used for accelerated stress screening, where the goal is to force failures as fast as the chamber allows.
In practice: Compresses what would be a 3–5 hour gradual test into a much shorter cycle — without sacrificing the linear profile that standards require.
In practice: Run dry heat / cold cycling, or add humidity control from 20% to 98% R.H. without buying a second chamber.
In practice: BTHC-based control keeps both temperature and humidity stable — including during high-speed ramp events where drift usually appears.
In practice: 150L, 225L, 408L, and 800L internal sizes, each configurable across A~F option levels — from basic cycling to full humidity control.
Control, cycling, and monitoring features included with every fast temperature change chamber.
The F-TH Series is designed to support the following rapid temperature and humidity cycling standards.
Temperature and humidity profiles recorded from the F-TH Series during real rapid-cycling tests.
Charts show temperature and humidity profiles recorded during a typical rapid temperature change cycle.
Independent protection layers — protecting your sample, your operator, and the system.
Applied to quality inspection and reliability testing across electronics, automotive, battery, and material industries.
