Thermocouple Locations
There is no information in GDP guideline as to location of or how many thermo couplings for temperature measurement should be inserted into the load space during the qualification test. Air and load temperature measurements are made with thermo-sensors of type Pt 100. Accuracy is within limits ± 0.3 °C. Thermo-sensors are calibrated based on procedure of Czech Metrologic Institute. Sensors were placed according to FDX 15-140. Temperature data is measured and recorded by equipment independent of the refrigeration unit. Placement of the thermo-sensors (thermocouples) for individual compartment is shown in figures below. All sensors except sensors mounted at front wall and at both sides of dividing wall are located 15 cm from the relevant wall, ceiling or floor. Those exceptional three sensors are placed 5 cm from the relevant wall.
