MSA 9010 SIL, Руководство по эксплуатации

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36
Settings Parameters
GB
Model 9010/9020 SIL
5.4 Access code 4 - Configuration
Step Function Note
P1
Supply Current
Possible settings:
100 - 450 mA for 9010 unit
100 - 350 mA for 9020 unit
For catalytic combustion and
semiconductor detectors
only.
P2
Minimum 4-20 mA Transmitter Supply Current
Possible settings: 1 - 450 mA)
If detector current is below
selected value then failure
F1.6 is displayed and
FAILURE relay is activated.
P3
Maximum Negative Drift
Set the max. allowed negative drift value
(Possible settings: -1 to -10 % FS).
in ATEX mode negative drift is limited to -1 to -5 % FS only.
Reaching the preset value
activates the FAILURE relay
and "-d1" is displayed,
4/20 mA analog output
follows the setting in Access
Code 4, P20.
P4
Measuring Units
Select desired measuring units from a list:
(LEL, LELm, PPM, %Vol., g/m3, no unit)
Selection %Vol. for oxygen analysis is possible only after the
configuration of Access Code 52, P2 or P3, depending on the
type of transmitter).
In ATEX mode, LEL, LELm
or %Vol. units can be set
only.
In ATEX mode %Vol. units
shall be used for oxygen
detection applications only
P5
Measuring Range - Offset
Set minimal value of measuring range.
(Possible settings 0-9000)
In ATEX mode the offset
value is "0"
P6
Measuring Range - Full Scale
Set maximal value of measuring range.
(Possible settings 0-9000)
Full scale value change affects alarms set points and calibration
In ATEX mode permissible
values are between 1 and
100 for the combustible gas
and 1-30 % vol.for oxygen
settings.