Thermostatic test chamber F-TH series

climatichumiditytemperature

Product Name
Fast Temperature Change Rate Test Chamber — F-TH Series (F-TH-150 / 225 / 408 / 800) — Rapid 3–20 °C/min Linear Ramp, Optional Humidity Control

Overview
High stress rapid temperature change chamber capable of applying rapid thermal (and optional humidity) stress to specimens. Designed to achieve high change rates (typically 5 °C/min or more; up to 20 °C/min linear, and up to 30 °C/min peak in nonlinear mode) across a wide temperature span. Instrumentation and controller are integrated into the door to minimize footprint, using a bright, colorful LCD interactive touch-screen for easy control.

Key Highlights

• Rapid temperature change capability: up to 20 °C/min under full linear control; nonlinear control supports faster peak ramp rates.
• Temperature range: −70 °C to +150 °C.
• Optional humidity control: standard 20%–98% R.H.; wider ranges 10%–98% or 5%–98% available with dehumidifier.
• Programmable multi-segment cycling: up to 100 programs, 100 segments per program; up to 999 cycles per program.
• Built-in protections: compressor overload, high/low pressure coolant protection, over-humidity and over-temperature protection, water shortage warning, fault warning system.

Configuration Modes

• Linear Mode — 3–20 °C/min with full linear control: constant ramp rate across cycle; adjustable; repeatable and preferred for standards and qualification reports.
• Nonlinear Mode — 3–30 °C/min with faster peak ramp: ramp varies across the profile for accelerated stress screening (e.g., HALT-style screening); humidity function can be combined.

Built-in Functions / Features

• BTHC Temperature & Humidity Control: PID + SSR with auto-calculate function for balanced control during high-speed ramps.
• Programmable Multi-Segment Cycling: up to 100 programs, each up to 100 segments; max 999 cycles per program.
• Power-Off Memory: resumes program after power loss; 5-year memory backup.
• Imported LCD Display: shows set point, actual value, and time simultaneously.
• Dual Refrigeration Loop: imported fully-closed compressor for fast cooling; air-cooled or water-cooled configurations.
• DIN PT-100Ω Sensor: standard industrial temperature sensor for long-term stability and easy replacement.
• RS-232 / RS-485 + Timer Relay: standard communication interface and timer signal output relay for automation.
• Interface Lock & Alarm: prevents unauthorized changes; alarms on running/setting faults.

Standards Supported

• IEC 62133-2017 (Secondary Cells & Batteries)
• UL 1642 (Lithium Batteries)
• UN 38.3 (Transport of Lithium Batteries)
• IEC 60068-2-14 (Change of Temperature)
• GB/T 2423.22 (Change of Temperature)
• IEC 60068-2-38 (Composite Temperature / Humidity)
• MIL-STD-810 (Environmental Test)
• ISO 16750-4 (Road Vehicles — Climatic Loads)

Applications

• Electronics & PCBs
• Electric appliances
• Communication equipment
• Instruments & meters
• Automotive components
• Battery & energy storage
• Plastic & rubber
• Metal & alloys
• Food & chemical
• Building materials
• Medical devices
• Aerospace & defense

Specification table — F-TH Series (four model comparison)
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 (all models)
Range of Fast Temperature Change | −45 °C ~ +85 °C (all models)
Maximum Ramp Rate | Up to 20 °C/min under full linear control (all models)
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.) | F-TH-150: 250 kg | F-TH-225: 350 kg | F-TH-408: 450 kg | F-TH-800: 600 kg

Measured Performance Data
Temperature and humidity profiles recorded from the F-TH Series during rapid cycling tests demonstrate the chamber's rapid ramp capability and humidity control performance.

Safety / Protection

• Multi-layer protection: fuse-free switch, compressor overload protection, high/low pressure coolant switch, over-humidity protection, over-temperature protection, fault warning system, water shortage warning, fuses & electronic alarm.

Notes
A~F suffixes indicate configurable option levels. Humidity function is optional and requires a dehumidifier for the 5%–10% R.H. range. Custom chamber sizes available on request. Warranty and certifications indicated on product materials (e.g., CE Certified; 12-month warranty).