Hach PAH500 Manual Del Usuario página 4

Specification
Sample requirements
Pressure
Flow
Temperature
Measurement
Method
Light source
Excitation wavelength
Detection wavelength
Measurement range
Display units
Measurement interval
Event log and data log
Accuracy
Limit of detection
Response time
Turbidity compensation
Calibration verification
Calibration
Section 2 General information
In no event will the manufacturer be liable for direct, indirect, special, incidental or consequential
damages resulting from any defect or omission in this manual. The manufacturer reserves the right to
make changes in this manual and the products it describes at any time, without notice or obligation.
Revised editions are found on the manufacturer's website.
4 English
Details
7 bar (101 psi) maximum
Continuous sample flow is necessary for accurate measurements.
Recommended 1 L/min of sample flow.
0 to 50 °C (32 to 122 °F)
UV fluorescent measurement process for poly-cyclic aromatic
hydrocarbons (PAH)
Ultraviolet light emitting diode
255 nm
370 nm
0 to 900 μg/L PAH
PHE
ppb, ppm, μg/L, mg/L PAH
60 seconds
2 weeks capacity minimum, all measurements
± 5% or ± 5 μg/L (the larger value) at a constant temperature and
flow
3 μg/L PAH
60 seconds
0 to 150 FNU (or 0 to 150 NTU); SC1000 Controller or other
programmable controller calculates turbidity compensation based
on the PAH reading and turbidity reading.
Note: The user must manually enter the turbidity compensation formula into the
controller. Refer to Figure 8 on page 17 for the formula.
Calibration standard measured
Factory calibration with phenanthrene equivalent standards
Optional: 1-point or 2-point user calibration with the phenanthrene
equivalent standards in the Calibration Kit.
As an alternative, the calibration slope and offset values can be
changed manually.
(phenanthrene) equivalents