Climatic chambers are used to test equipment under different temperatures and relative humidities (RH). The temperature range and stability are denoted below by (min/max)±D ºC, where min is the minimal, max is the maximal adjustable temperature in ºC, and DºC is the 24 hour temperature stability. Likewise, (min/max)±D %RH denotes the relative humidity range and stability. Temperature and relative humidity are not completely independent, but are constrained by a dew-point of at least 5ºC (9ºC for walk-in chambers).

Figure 1. Load cell climatic test chamber of type TIRA TTG 210.10.1, year of construction: 2007. Outer volume (B x T x H) mm = 1160 x 1440 x 2060, inner volume (B x T x H) mm = 941 x 680 x 1000, temperature (-20°C / +50°C) ±1ºC. Not used for humidity tests. Note the mass stacks connecting from below.	Figure 2. Walk-in climatic chamber of York make, year 1996. Inner volume W×D×H = 3m×2m×2.2m, temperature (-15/+50)±1ºC, humidity (15/95)±5%RH.
	Figure 3. Walk-in automatized climatic chamber of York make, Year 1996. Inner volume W×D×H = 5m×3m×2.8m, temperature (-20/+50)±1ºC, humidity (15/95)±5%RH.
	Figure 4. Walk-in temperature chamber of Weiss make, type 35'/10 DV, year 1974. Inner volume W×D×H = 4.1m×2.8m×2.6m, temperature (-10/+40)±1ºC, humidity not adjustable.
Figure 5. Climatic chamber of Heraeus-Vötsch make, type VC 2057, year 1996. Inner volume W×D×H = 0.7m×0.8m×0.8m. temperature (-20/+150)±1.5ºC for thermal testing only, otherwise (10/90)±1ºC, humidity (15/95)±5%RH. , humidity (10/98)±3%RH.	Figure 6. Climatic chamber of Feutron make, type 3623/15, year 2002. Inner volume W×D×H = 0,7m×0.45m×1.02m, temperature (-40/+100)±0.5ºC, humidity (10/95)±3%RH.
Figure 7. Load cell climatic test chamber type TIRA TTG 203.03.1, year of construction: 2005. inner volume (B x T x H) mm = 410 x 476 x 640. temperature (-20°C / +55°C) ± 0,2°C The machine can be used for load cells with the range till 200 tons. The machine (2MN-KNME) is calibrated at regular intervals linked to PTB standards of Division 1.2.	Figure 8. Load cell climatic test chamber type WEIL, year of construction: 1987. inner volume (B x T x H) mm = 310 x 376 x 540. temperature (-10°C / +40°C) ± 1°C The machine can be used for load cells with the range till 100 tons. The machine (1MN-KNME) is calibrated at regular intervals linked to PTB standards of Division 1.2.