K-Patents PR-23 User Manual

52
PR-23 instrucon manual
Press the FIELD
SAMPLE so key...
...wait while
DTR measures...
(take sample for lab)
...and press REPEAT for next
data point or BACK to get to
the Sensor status display.
Figure 6.13 Using FIELD SAMPLE so key
− low low which makes sample to form an unrepresentative ilm on the prism
− sample evaporation at high temperature or undissolved solids at low temperature
giving deviations from laboratory determinations
− an ageing sample which is not representative
− outside light reaching the prism
Thus calibration using the process liquid should always be made inline.
6.4.4 Entering eld calibraon parameters
The ield calibration parameters supplied by K-Patents are entered by selecting 5
CALIBRATION from the Main menu, followed by irst 1 CHEMICAL & FIELD PARAMETERS
and then by 2 FIELD CALIBRATION PARAMETERS.
Important: If there is already a previous ield calibration, it should be cleared (by
setting all values to 0) before entering a new ield calibration.
6.4.5 Direct BIAS adjustment
The concentration measurement value can also be directly adjusted by changing the
ield adjustment parameter f00.
The value of the bias parameter f00 will be added to the concentration value:
NEW CONC = OLD CONC + f00.
6.5 Conguring prism wash
In some applications the process low does not keep the prism clean because of sticky
process medium or low low velocity. In these applications the prism can be automat-
ically cleaned by installing a wash system (see Chapter 4).
The prism wash settings for sensors A and B are independent of each other. The wash
system is active if a relay has been conigured to be a wash relay (see Section 6.3.1)
and the wash time is not zero. An automatic wash function can be conigured so that
both sensors have different parameters.

K-Patents PR-23 Specifications

General

Brand	K-Patents
Model	PR-23
Category	Measuring Instruments
Language	English