Siemens SITRANS P Bedienungsanleitung PDF herunterladen (Seite 104)

On-Line Operation UMSITRPDS3-1

November 2010

6-6

TABLE 6-2 Parameters Accessible Using the Magnetic Pushbuttons

Configuration Mode Increase/Decrease Pushbuttons (Keys) Description See

Parameter

( Increase ' Decrease ( and '

Section

Measured value --- --- --- --- Output current in mA or %

or input pressure in

selected engineering units

6.2.10

Error display --- --- --- --- Error 6.2.7

Zero 2 Increase current Decrease current Set to 4 mA Output current in mA 6.2.2

Full scale 3 Increase current Decrease current Set to 20 mA Output current in mA 6.2.2

Electric damping 4 Increase damping Decrease damping --- Range 0.0 to 100.0 seconds 6.2.3

Zero “blind

setting”

5 Increase pressure Decrease pressure Set to start of

scale 0

Zero in the selected

engineering unit

6.2.4

Full scale “blind

setting”

6 Increase pressure Decrease pressure Set to upper

measuring limit

Full scale in the selected

engineering unit

6.2.4

Zero for position

correction

7 --- --- Press both

pushbuttons

simultaneously

Re-zero when oriented

from vertical

6.2.5

Output Current 8 Increase current Decrease current Switch on/off Constant output current 6.2.6

Failsafe output

current

9 --- --- Select Failsafe output current;

limits set by user

6.2.7

Pushbutton

enable/disable

10 --- --- Select 0 = None

LA = All disabled

LO = All disabled except

zero

LS = All disabled except

zero and full scale

L = Write protect; HART

operation disabled

6.2.8

Characteristic, DP

only

11 --- --- Select Lin = linear

Srlin = square root (linear

to switch (i.e., application)

point)

Sroff = square root

(switched off up to switch

point)

Srli2 = square root (slowly

increasing up to 0.6%, then

linear up to switch point)

6.2.9

Set square root

switch point

12 Increase Decrease --- Parameter range 5 to 15%

of flow

6.2.9

Measured value

display

13 --- --- Select Unit of pressure (input

value) or output current in

either mA or 0-100%

6.2.10

Unit of pressure 14 --- --- Select See Figure 6-3 for

engineering units

6.2.11

Notes:

1. Press the M pushbutton to change the mode.

2. IMPORTANT: Absolute pressure transmitters - the zero is established in a vacuum! A zero adjustment to a ventilated absolute

transmitter will cause an error!

3. Press both pushbuttons simultaneously.

DP = differential pressure

1 2 ... 99 100 101 102 103 104 105 106 107 108 109 ... 221 222

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