Instrument - Temperature and Relative Humidity Probe
Short name:
TRHprobe
Full name:
Temperature and Relative Humidity Probe
What is being measured:
Sampling Protocol:
Online
Manufacturer:
Vaisala
Model:
HMM211
Instrument year
:
2009
Data recording software:
Labview
Data analysis software:
Labview
Raw data time resolution:
30s
Analysis data averaging:
Detection limit:
0-100% RH, -70 to 180 C
Sensitivity to temperature (and correction method, if applicable):
:
Sensitivity to relative humidity (and correction method, if applicable):
:
Sampling method:
Direct Sampling
Sample preparation method:
Sample residence time (chamber to instrument) (seconds):
Length of tubing (cm):
Instrument flow rate:
Tubing inner diameter:
Tubing material:
Chemical identification method:
Data analysis method:
Calibrate with 4 salts with known relative humidities. The probe is put in an enclosed container with those salts and some water and allowed to sit until it stabilizes.
Quantification method:
Calibration method:
Calibrate with 4 salts with known relative humidities. The probe is put in an enclosed container with those salts and some water and allowed to sit until it stabilizes.
Calibration drift estimate:
Low (on the order of weeks)
Calibration schedule:
6 Months
Uncertainty estimation method:
Temperature: +- 0.1 C, RH: +- 2% (when RH<90%) or +-3% (when RH>90%)
Known interferences:
Link to supplemental information:
Additional notes:
There are three probes: the near bag probe (NB-P), the far bag probe (FB-P), and the flow tube probe (FT-P). Their last calibration dates are:, NB-P: 9/26/2018. FB-P: 7/19/2018. FT-P:
Measurement uncertainty:
Measurement units: