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Equipment Required
Thermo Fisher Scientific
Calibration
Chapter 4
This chapter describes the procedures for performing the necessary sensor
calibrations. This chapter is also a follow-up to the Acceptance Testing
outlined in the "Installation" chapter and a continuation of the menu
display descriptions in the "Operation" chapter.
The Model 5030 SHARP comes with a HEPA filter and adapter for zeroing
the instrument. Optional mass transfer standards are available from Thermo
Fisher Scientific for performing an annual mass calibration. However,
additional specialized equipment is needed to calibrate the Model 5030 for
temperature, relative humidity, barometric pressure, and volumetric flow
measurements. The following equipment should be used:
•
A thermistor or thermocouple thermometer capable of measuring
ambient temperatures in a range of -30 to +45
nearest 0.1
. This thermometer should be referenced to within an
°C
accuracy of ±0.5
°C
thermometers may be used to cover the temperature range as long as
each thermometer meets the accuracy and readability specifications
described above.
•
A barometer capable of measuring barometric pressure over a range of
600 to 800 mm Hg (80 to 106 kilo Pascals [kPa]) and readable to the
nearest 1 mm Hg. At least once a year, this barometer should be
calibrated to within ±5 mm Hg of a NIST-traceable barometer of
known accuracy.
•
Flow-rate Transfer Standard (FTS) measurement equipment capable of
calibrating, or verifying, the volumetric flow rate measurement with an
accuracy of ±2 percent. This flow rate standard must be a separate,
stand-alone device. It must have its own certification and be traceable to
a NIST primary standard for volume or flow rate. Dry-piston meters
and bubble flow meters should only be used under controlled laboratory
conditions. Ambient field measurements should use a NIST-traceable
low pressure drop orifice/venturi flow meter (such as, BGI Delta-Cal).
•
A relative humidity (RH) standard capable of measuring in the range of
35-75% RH, readable to the nearest 0.5% RH and accurate to within
2% RH.
to NIST-traceable precision thermometers. Multiple
Model 5030 SHARP Monitor Instruction Manual
, readable to the
°C
4-1
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