have to calibrate temperature readings and control systems of refrigerating plants,
particularly during cargo transportation, treatment and
storage under USDA regulations.
Usually those refrigerating plants are equipped with sensors type PT100.
This calculator is designed for that kind of sensors.
This program simplifies the procedure of temperature adjustment.
Usually the terminal of sensors connection is away from the temperature monitor.
This application allows to rapidly calibrate sensor without running
from computer to terminal and vice versa by calculating necessary resistance
and adjust variable resistor, before set it up on terminal.
Both pictures show connection of variable resistor between contacts A and C.
However, sometimes, depend on particularities of sensors you have to
connect variable resistor between contacts A and B.
Inaccuracy of calculation is less then 0.01 in equivalent of Degrees Celsius.
RELATIVE HUMIDITY Calculator is included here.
RH calculator useful for people who are dealing with perishable cargo transportation.
In order to calculate relative humidity you should measure temperature of dry and
wet thermometers. Computation of relative humidity for negative temperatures is also available.
Inaccuracy of computation is +/- 0.5%