Description
The innovative Peltier technology in the Climatic Chambers KKP
Peltier technology in KKP series provides stable, silent, vibration free climatic conditions, keeping superior temperature variation and fluctuation, and it’s space-saving. The tests performed at a temperature close to the ambient temperature shows the impressive economy of the heating and cooling concept with Peltier thanks to which KKP doesn’t require any refrigerant and is therefore nearly maintenance-free. Due to the fact that the efficiency of Peltier appliances in certain conditions is much better than of climate chambers with refrigerant dependent cooling systems, the KKP 240 makes a significant contribution to improving the climate balance.
Humidification with a steam generator
The KKP constant climatic chambers with a steam humidifier do not emit ultrasounds and therefore allow insects breeding (e.g. Drosophila melanogaster). Compared to the KK chambers, they feature an extended temperature and humidity range and can be used for tests of electronics, plastic or building materials.
Steam humidifier in the KKP models is an energy-saving solution based on an aluminum heating block and a peristaltic pump controlled by a stepper motor. This humidifier has a very fast heating time and enables the dosing of precisely measured amounts of water. Operation in ECO mode (the block heats up only when it detects the need for dosing moisture to the chamber) saves energy.
How does work Peltier cooling-heating system?
Diagram temperature-humidity range
Climate testing points according to ICH Q1 A (R2) guidelines
|
STABILITY STUDY |
STORAGE CONDITIONS | MINIMUM
TIME PERIOD |
TESTING FREQUENCY |
| Long term
(choice of storage conditions) |
25 ±2°C/60 ±5%RH or 30 ±2°C/65 ±5%RH | 12 months | each 3rd month 1st year,each 6th month 2nd year,
annually thereafter |
| Intermediate
(if long term conditions is 25 ±2°C/60 ±5%RH) |
30 ±2°C / 65 ± 5%RH | 6 months | minimum three time points |
| Accelerated | 40 ±2°C / 75 ±5%RH | 6 months | minimum three time points |
| Long term
(only semi-permeable containers) |
25 ±2°C / 40 ± 5%RH or 30 ±2°C/35 ±5%RH | 12 months | each 3rd month 1st year, each 6th month 2nd year,
annually thereafter |
| Accelerated
(only semi-permeable containers) |
40 ±2°C / not more than ±25%RH | 6 months | minimum three time points |
