Endress+Hauser mypro CLD 431, Руководство по эксплуатации

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4 Operation
4.1 Start-up
Note:
•
Familiarise yourself with the opera-
tion of the measuring instrument
before switching it on for the first
time!
•
Before power-up, check that all
connections have been properly
made!
•
Make sure that the measuring cell
is immersed in the medium to be
measured or a calibration solution.
This ensures that a plausible value
will be displayed.
4.2 Power-up, factory settings
The MyPro CLM 431 / CLD 431 does not have
an “ON switch”. When power is applied, the
instrument performs a self-test and then starts
up in the measuring mode using the parame-
ters last set. The display should be similar to
one of the figures below. Of course, the dis-
play value may be different.
µ
S/cm or mS/cm
on the display stands for conductivity, M
Ω
cm
or k
Ω
cm stands for resistance measurement.
If the display indicates a plausible value, the
cell constant can be entered, allowing the
transmitter to display the measured values
correctly. The instrument is then ready for
measurement.
Use the function “
t y pe
” to switch between
the operating modes conductivity and
resistance, see chapter 5.1.
Refer to chapters 4.6.4 and 5 for notes on
calibration.
Fig. 4.1 Conductivity measurement
Fig. 4.2 Resistance measurement
Operation mypro CLM 431 / CLD 431 conductive
20 Hauser