Endress+Hauser mypro CLD 431, Руководство по эксплуатации

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5.2 Basic functions
Function group
BASIC FUNCTIONS
Function/display
Matrix
VH
1)
Description
Setting
Default Customer
Remote
calibration
control
VH
10
This function controls the calibration sequence when
operated via the interface (see chapter 4.6.4 ).
Note:
The measuring system can be calibrated in
the field or via the interface (hand-held
HART
®
terminal or Commuwin II).
–
Temperature
coefficient
α
VH
11
Entry of linear temperature coefficient for the process in
measuring mode.
Value range:
0 ... 10 % /K
2.10 % / K
Temperature
compensation
type
VH
12
Selection of medium temperature compensation type.
Value range:
nonE
= none
LI N
= linear
nACL
= NaCl
tAb
=
α
value table
Pur
= pure water NaCl
linear
Reference temp.
VH
13
Reference temperature for automatic temperature
compensation.
Value range:
–35 ... 250 °C
25 °C
Cell constant
VH
15
Entry of cell constant or information on cell constant
determined during calibration.
Value range:
0.0025 ... 99.99 cm
–1
1cm
–1
Line resistance
VH
16
Entry of line resistance for conductivity measuring cell.
Note:
The line resistance does not affect the accuracy
in the case of measured values below 1 mS.
With measured values above 5 mS and line
lengths (CYK 71) exceeding 10 m, the error is
greater than 0.5% of the measuring value
and therefore requires compensation.
Note:
The total line resistance of measuring cable
CYK 71 is 0.17
Ω
/m.
Value range:
0.00 ... 50 ohms
0
■
Operating level 2
LM431CE5.CHP
mypro CLM 431 / CLD 431 conductive Functional description
Hauser 29