TestEQ ETH-series temperature and humidity test chambers reproduce controlled temperature and humidity conditions for component, assembly and material reliability testing. The series uses application-specific compressors from 0.8 to 8 HP and an optimized air circulation system.
Applications
- Electronics and PCB assemblies: damp heat, temperature and humidity exposure
- Semiconductor and electronic components
- Automotive and EV components
- Aerospace and defense equipment
- Batteries and power electronics
- Materials, coatings and adhesives
Chamber configuration
- Cabinet models from 245 L to 1000 L; large walk-in temperature-humidity systems can be customised up to 4500 m³.
- Temperature range -40 °C to +180 °C or -70 °C to +180 °C, depending on model.
- Humidity range 10 % to 98 % RH (5 % to 98 % RH optional), with pump water supply.
- Constant temperature control ≤ ±0.3 °C for testing stability.
- Dew point temperature range 7 °C to 87 °C; extended dew point conditions -10 °C.
- Application-specific compressors from 0.8 to 8 HP deliver fast product temperature change rates; faster transitions shorten the test cycle.
- Optimised air circulation improves temperature gradient, control precision and reliability.
- 7" colour touchscreen controller with program mode (20 programs, up to 50 steps each, up to 20 loops) and fixed-value mode; RS-485 local and remote communication, up to 16 chambers connected with a maximum total cable length of 800 m.
- Over-temperature protection, power-failure protection, upper/lower temperature limits, timed start/stop and self-diagnosis.
- Noise ≤ 68 dB.
Specifications (ETH series)
| Parameter | ETH225-40 | ETH225-70 | ETH408-40 | ETH408-70 | ETH1000-40 | ETH1000-70 |
|---|---|---|---|---|---|---|
| Capacity (m³ / L) | 0.245 / 245 | 0.245 / 245 | 0.408 / 408 | 0.408 / 408 | 1.0 / 1000 | 1.0 / 1000 |
| Interior W×H×D (mm) | 700×700×500 | 700×700×500 | 700×800×730 | 700×800×730 | 1000×1000×1000 | 1000×1000×1000 |
| Exterior W×H×D (mm) | 900×1680×1300 | 900×1680×1300 | 900×1780×1500 | 900×1780×1500 | 1200×1980×1700 | 1200×1980×1700 |
| Temperature range | -40 to +180 °C | -70 to +180 °C | -40 to +180 °C | -70 to +180 °C | -40 to +180 °C | -70 to +180 °C |
| Temperature fluctuation | ≤ ±0.5 °C | ≤ ±0.5 °C | ≤ ±0.5 °C | ≤ ±0.5 °C | ≤ ±0.5 °C | ≤ ±0.5 °C |
| Temperature deviation | ≤ ±2.0 °C | ≤ ±2.0 °C | ≤ ±2.0 °C | ≤ ±2.0 °C | ≤ ±2.0 °C | ≤ ±2.0 °C |
| Temperature uniformity | ≤ 2.0 °C | ≤ 2.0 °C | ≤ 2.0 °C | ≤ 2.0 °C | ≤ 2.0 °C | ≤ 2.0 °C |
| Cooling +25 → -20 °C (min) | 30 | 18 | 30 | 18 | 30 | 19 |
| Cooling +25 → -40 °C (min) | 60 | 35 | 60 | 32 | 60 | 32 |
| Cooling +25 → -70 °C (min) | — | 80 | — | 80 | — | 80 |
| Heating -25 → +150 °C (min) | 56 | 56 | 56 | 56 | 56 | 56 |
| Heating -40 → +85 °C (min) | 50 | 50 | 50 | 50 | 50 | 50 |
| Heating -70 → +85 °C (min) | — | 60 | — | 60 | — | 60 |
| Humidity range (%RH) | 10–98 %RH | 10–98 %RH | 10–98 %RH | 10–98 %RH | 10–98 %RH | 10–98 %RH |
| Humidity uniformity | ±1.0 %RH | ±1.0 %RH | ±1.0 %RH | ±1.0 %RH | ±1.0 %RH | ±1.0 %RH |
| Relative humidity deviation | ≤ +2.0 to −3 %RH (>75 %RH) / ≤ ±5.0 %RH (≤75 %RH) | as left | as left | as left | as left | as left |
| Rated current (A) | 12 | 15 | 14 | 21 | 25 | 38 |
| Rated power (kW) | 6 | 8 | 7 | 10 | 12 | 18 |
| Power supply | AC380V, 3 phase 5 lines, 50/60 Hz |
Cooling/heating times are for an empty chamber. The humidity indicator applies to humidity-configured chambers; 5 % to 98 % RH is an optional condition. High-humidity options include 85 °C / 85 %RH for 1000 hours at least, 40 °C / 75 %RH, 55 °C / 10 %RH and 65 °C / 95 %RH. Performance is measured at 50 Hz and 23.9 °C laboratory conditions. These chambers are not intended for flammable, explosive or corrosive test items, or for biological samples.
Standards
Chambers can be configured for test programs based on IEC 60068, JEDEC JESD22, MIL-STD-810 and ISO 16750 requirements.
For a chamber configured to a specific temperature range, humidity condition or test standard, contact us with the specimen dimensions and required profile. Related: Thermal Shock Test Chamber , Rapid Temperature Change Chamber .