Calibrated sensor resolution

The calibrated sensor resolution is a parameter that depends on the calibrated sensor type. This value must be entered correctly as it is used for the uncertainty calculation.

The table below presents the typical values for standard temperature sensors used in B3 system.

Sensor type	Node type	Calibrated sensor resolution [°C]
FT011 and FT04x Digital temperature sensor	BBO, WIN, S2	0.0625
FH009 and FH010 Digital RH / temperature sensor	BBO, S2	0.01
FT012, FT003, FT008, FT020 PT100 sensor	BBO, WIN, S2	0.01
Parent temperature sensor	WIN	0.01
FH012 and FH013 Digital RH / temperature sensor	BBO, WIN, S2	0.01
FU002 Transport Logger card Standard	Transport Logger	0.5
FU003 Transport Logger card High Resolution	Transport Logger	0.0625
FU004 Transport Logger card High Temperature	Transport Logger	0.0625
BTiny temperature sensor	BTiny	0.05

For any other sensor types the correct resolution value must be defined.

A look at the sensor readings in B3 may be helpful as the resolution is the smallest change in the readings that can be observed for a sensor. A standard digital sensor like FT011 in stable conditions has the readings like in the example below.

We can see that the minimum change here is 0.06°C. If we can confirm this observation on a longer set of values, then we may say that the resolution is 0.06°C.

The readings for a WIN node built-in parent sensor indicate that this sensor has resolution of 0.01°C.