Thermo Scientific SOLA II Flare, Руководство пользователя

Страница: 27 / 164

Chapter 1
Product Overview
Thermo Scientific SOLA II Flare User Manual 1-9
During initial setup and calibration of a SOLA II Flare, the optimum PMT
supply voltage is set so that the highest concentration expected produces a
signal that is within the range that the rest of the electronics can process. The
voltage applied to the PMT is a negative dc voltage, and the lower the PMT
voltage the greater the sensitivity of the detector.
The Dual PMT Supply option adds the capability of two independent
analytical calibrations. During setup and calibration, supply A is assigned to one
range and supply B to the other. The voltage on each supply is adjusted using
the corresponding PMT voltage adjustment to accommodate the desired range.
The analyzer is then calibrated and tested for each range. During normal
operation, the supply voltage to the PMT is routed from either supply under
software control.
Specifications
Analytical
Specifications
Table 1-1.
Detector Pulsed UV Fluorescence (PUVF), with pyrolyzer for Total Sulfur Measurement
as SO
2
Repeatability Two sample injections/minute = ± 1% of full scale at one standard deviation.
One sample injections/minute = ± 2% of full scale at one standard deviation.
Linearity ± 1% of full scale measurement range
Response Time
Semi-continuous, 120-second rolling average with the output updated each
second, T-90 response time of four to seven minutes
Process Streams One
Calibration On-demand
Validation Automatic or on-demand