Instruction manual

Calibration
Calibration Procedure
Thermo Fisher Scientific Model 5030i SHARP Instruction Manual 4-3
All screens that appear in this chapter have been referenced in the previous
chapter.
Using a NIST-traceable thermometer as a reference collocated next to the
ambient RH/temperature sensor assembly, measure and compare three
individual readings between both the reference and the 5030i response.
Taking an average of both sets of readings, calculate the average difference
between the two readings and record that as your offset. This offset
(ZERO) should now be entered in the screen below:
CALIBRATE AMBIENT TEMP:
TEMPERATURE: 29.9
o
C
ZERO: 4.2
o
C
©ª INC/DEC
 SAVE VALUE
RANGE AVG DIAGS ALARM
Be sure to save the entry and compare the values once more. If it appears
that the temperature has shifted into the wrong direction, change the sign
of your offset value.
Using a NIST-traceable hygrometer as a reference collocated next to the
ambient RH/temperature sensor assembly, measure and compare three
individual readings between both the reference and the 5030i response.
Taking an average of both sets of readings, calculate the average difference
between the two readings and record that as your offset. This offset
(ZERO) should now be entered in the screen below:
CALIBRATE AMBIENT RH:
REL HUMIDITY: 40.0 %
ZERO: 0.0 %
©ª INC/DEC
 SAVE VALUE
RANGE AVG DIAGS ALARM
Be sure to save the entry and compare the values once more. If it appears
that the temperature has shifted into the wrong direction, change the sign
of your offset value.
RH
/
Temperature
Calibration
Ambien
t
Temperature
Ambient Relative
Humidity