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Walk-In Temperature and Humidity Test Chamber

Room-scale temperature and humidity chamber for large components, assemblies, fixtures, and batch testing. Share the usable workspace, DUT heat load, climate profile, access needs, and site utilities so Bellue can confirm the appropriate model and project configuration.

Walk-in Environmental Chamber for Temperature Humidity Test
Walk-in Environmental Chamber for Temperature Humidity Test

Walk-In Temperature and Humidity Chamber for Large DUT Testing

Bellue walk-in temperature and humidity chambers provide room-scale environmental conditioning for large components, assemblies, fixtures, and batches that do not fit a cabinet chamber. Published models cover several workspace sizes and temperature configurations; final performance, utilities, access, safety layers, and optional systems are confirmed against the DUT and test profile during quotation.

Use this product route when

  • The DUT, fixture, cart, or batch requires a room-scale usable workspace.
  • The program needs controlled temperature and humidity cycling rather than a rapid-rate or specialty environment.
  • Door access, floor loading, airflow, heat rejection, utilities, and installation clearances can be planned as part of the chamber project.
  • The buyer can provide the required temperature/humidity profile, DUT heat load, test duration, and applicable procedure for configuration review.

Published Model Range and Performance

The values below are the current published catalog figures. Confirm the required range, tolerance, ramp rate, humidity envelope, load condition, and site ambient conditions in the RFQ before treating them as project commitments.

Parameter BTHW-6M BTHW-10M BTHW-15M BTHW-30M BTHW-80M
Test space, W × H × D (mm) 2000 × 2000 × 1500 2500 × 2000 × 2000 3000 × 2200 × 2500 5000 × 2000 × 3000 4000 × 2500 × 8000
External dimensions, W × H × D (mm) 3350 × 2280 × 1800 3850 × 2480 × 2300 4350 × 2480 × 2800 5200 × 2280 × 4350 4200 × 2780 × 9700
Temperature range A: 0 to 90°C; B: −20 to 90°C; C: −40 to 90°C; D: −70 to 90°C
Humidity range 20% RH to 98% RH; low-humidity configurations down to 5% RH are project-specific
Temperature fluctuation ≤ ±0.5°C
Temperature deviation ≤ ±2°C
Temperature uniformity ≤ ±2°C
Humidity fluctuation ≤ ±2.5% RH
Humidity deviation ≤ +2/−3% RH above 75% RH; ≤ ±5% RH below 75% RH
Heating rate Approx. 1 to 3°C/min, average non-linear, no load
Cooling rate Approx. 0.5 to 1°C/min, average non-linear, no load
Temperature overshoot ≤ ±2°C
Interior material 1.0 mm SUS 304 stainless steel
Exterior material 1.2 mm powder-coated galvanized steel
Refrigeration Air-cooled or semi-enclosed refrigeration configuration, selected for the project duty and site conditions
Project-specific options Dry-air purge, water treatment and supply, fresh-air ventilation, remote monitoring, alarm notification, extended humidity configurations, and engineered hazard-protection packages. Availability and suitability require project review.

Information Needed to Select the Chamber

  • DUT and fixture: dimensions, mass, material, heat generation, quantity, orientation, and any energized state.
  • Test profile: temperature and humidity setpoints, dwell times, transition expectations, total duration, and load condition.
  • Access and workflow: door opening, carts or vehicles, floor loading, observation, cable ports, and specimen handling.
  • Facility: available floor area, route to site, electrical service, cooling or heat rejection, drainage, water quality, ventilation, and ambient conditions.
  • Controls and records: data logging, USB export, RS-485 or Ethernet communication, remote monitoring, alarms, and system integration.
  • Procedure and risk: the governing test method, revision, buyer acceptance criteria, DUT hazards, and required protective layers.

Safety, Standards, and Project Boundaries

Bellue supplies environmental test equipment and project support; it is not a testing laboratory or certification body. Standards compatibility and acceptance criteria must be confirmed against the buyer’s specified revision, procedure, DUT, instrumentation, and authority having jurisdiction.
A walk-in chamber is not automatically suitable for personnel occupancy during an active test. Entry, egress, internal door release, emergency stop, interlocks, alarms, ventilation or purge, fire protection, monitoring, and lockout procedures must be defined through the project risk assessment. Energized batteries, flammable materials, gas release, or other hazardous DUTs require a separate engineering review and must not be assumed compatible with a standard climate-room configuration.

Compare the Right Walk-In Route

Use the walk-in and drive-in chamber family to compare climate, rapid-rate, altitude, and specialty products. For facility-level layout and project sequencing, review the walk-in test chamber planning route. Higher-risk programs should also review walk-in safety solutions and installation and commissioning support.
Send the DUT dimensions, test profile, heat load, access needs, and site conditions for an RFQ review.

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