Thermostatic test chamber THR

climatichumiditytemperature

Short description
Customizable walk-in thermal chamber for temperature and humidity testing of whole products and large assemblies across industries such as electronics, automotive, LED, PCB, appliances, research labs and certification bodies. Typical temperature capability −70 °C up to 80 °C standard (80–150 °C optional) and relative humidity control 20%–98% R.H. with special options available.

Overview
The THR Series is a walk-in temperature and humidity room with integrated piping and ductwork, an all-in-one touch-screen controller and PLC. Room dimensions, internal layout and utility interfaces are configurable to match DUT size and laboratory constraints.

Key features

• Customization — Internal dimensions and layouts built to customer requirements; custom sizes available.
• Six low-temperature grades (A–F) — Low limits from 25 °C down to −70 °C; high temperature 80 °C standard, 80–150 °C optional.
• Walk-in access — Full-size door for testing whole products, carts and assembled equipment.
• Multi-layer safety — Seven independent protection layers for power, motor, compressor, heater and water supply.
• PID control — Precise temperature and humidity closed-loop control.
• Programmable profiles — 100 pattern memory × 999 segments with ramp-rate control.
• Humidity sensor — Real-time closed-loop measurement.
• Overheat thermostat — Independent cut-off protection.
• 50 mm cable test port — For routing cables to DUT during tests.
• USB data export — Test data exportable to USB.
• Heated double-glazed observation window — Sweat-proof viewing with internal lighting.
• External water supply — Convenient refill for humidifier; auto-recyclable system.

Standards

• IEC 68-2-1 (Cold)
• IEC 68-2-2 (Dry Heat)
• IEC 68-2-3 (Damp Heat — Steady State)
• IEC 68-2-30 (Damp Heat — Cyclic)
• IEC 68-2-14 (Change of Temperature)
• MIL-STD-810G / MIL-STD-810F
• ISO 16750-3

Safety & protection

• Grounding protection
• Leakage and breakage protection
• Heater short-circuit protection
• Blower motor overload protection
• Compressor over-voltage and overload protection
• Water shortage protection

On-site installation & service

• Site layout and utility planning
• Chamber assembly and connection
• Temperature and humidity calibration
• Operator training and handover
• Standard lead time for customized walk-in chambers: 30–40 working days from confirmed drawings
• Export packing and shipping documentation included

Deliverables

• Installation & Operation Manual with wiring diagrams and start-up checklist
• Export packing list and shipping documents
• 12-month warranty covering chamber, refrigeration system and controller
• Lifetime remote technical support
• Standard lead time for custom builds: 30–40 working days

Technical specifications

• Model — THR Series (THR-volume; low-temperature options A~F)
• Internal dimensions — Factory-built; customizable to customer requirements
• Temperature range — Low: (A) 25 °C / (B) 0 °C / (C) −20 °C / (D) −40 °C / (E) −60 °C / (F) −70 °C; High: 80 °C standard (80 °C ~ 150 °C optional)
• Humidity range — 20% ~ 98% R.H. (10–98% and 5–98% available as special options with dehumidifier)
• Indication resolution / Distribution uniformity — 0.1 °C; 0.1% R.H. / ±2.5 °C; ±3.5% R.H.
• Control accuracy — ±0.5 °C; ±2.5% R.H.
• Temperature rise / fall rate — Rise approx. 0.1 ~ 3.0 °C/min; Fall approx. 0.3 ~ 1.0 °C/min (faster rates optional)
• Cooling system — Water-cooled or air-cooled options
• Compressor — Tecumseh (France) or Bitzer (Germany) depending on configuration
• Protection devices — Fuse-free switch; compressor overload protection; high/low coolant voltage protection; over-humidity and over-temperature protection; fault warning system; water shortage warning
• Optional accessories — Cart ramp; recorder; water purifier; dehumidifier
• Power — AC 380 V (±10%), 50/60 Hz, 3-phase 5-wire
• Laboratory floor loading capacity — 600 kg/m² (uniform load)