Endress+Hauser OUSAF46, Руководство по эксплуатации

Страница: 17 / 36

OUSAF46 Commissioning
Hauser 17
7.2.2 Easycal
Easycal enables you to perform a calibration/an adjustment which is traceable to NIST
without any liquid standards.
Detector with Easycal: function
1 2
3 4
A0033709
 6 Filter in "out" position
1 NIST-traceable filter (high)
2 Locking screw
A0033708
 7 Filter in "in" position
3 Positioning pin
4 Lens assembly
Every Easycal device has two traceable filters - one filter with a nominal 0.5 AU and another
filter with 1 AU (absorbance unit) - which are placed individually or together in the device
measuring path. These filter(s) are scanned with traceable testing equipment and the actual
absorbance at individual wavelengths is determined.
It is very important that you use the actual values of the optical Easycal filter. These values are
given in the calibration certificate supplied.
‣
Enter the absorbance values (CM44P): Menu / Setup / Inputs / Photometer / Extended
setup / Measurement channel / Calib. settings / EasyCal = Yes , NIST filter high and NIST
filter low .
Send Easycal in to your Service Center once a year for recertification. This comprises
complete functional testing and the recertification of the filters in accordance with
sources that are traceable to NIST.
7.2.3 Visual inspection
A reference rod is included in the delivery for every standard sensor (sensor without Easycal).
In this way, it is possible to perform a functional test on the device without having to use
calibration solutions.