Vernier Tech Info Library TIL #1552

Question

My UVA or UVB sensor is displaying incorrect units in Logger Pro

Answer

A change in the manufacturing of the UV A and B (UVA Sensor, order code UVA-BTA, $104.00 and UVB Sensor, order code UVB-BTA, $105.00) sensors causes some sensors to display with incorrect units in Logger Pro. Instead of showing mW/m2 (that should be a small superscript two) Logger Pro incorrectly displays w/m^2.

The sensors are actually reading in units of milliWatts per square meter.

All versions of Logger Pro prior to 3.4.6 will display the incorrect units for some, but not all, UV sensors. Sensors displaying the problem were shipped in 2005 and 2006. Version 3.4.6 and newer will display the correct units for all UV sensors.

DataMate and EasyData display the correct units, but will lack a space before the unit name, thus running the sensor name and the units together.

Created by: gastineau on May 23 2006
Last updated by: jhopkins on May 23 2007