- 21 -
Display
Function Description
Setup Options and Descriptions
Factory
Setting
Remarks
C-16
Operation selection at
alarm occurrence
0:
Control continued (alarm ignored)
1:
Move to fully closed
2:
Move to fully open
0
Alarm output turns ON even if “0” is selected
C-17
Slow start setup
0:
Slow start disabled
1 to 8: Slow start enabled (equivalent to
approximately 1 to 6 seconds
settling time)
0
Slow start is enabled when the external contact
input turns ON. For slow start operation,
switching is selected at ‘
C-10
’ and ‘
C-11
’.
C-18
Gas type selection
0. Conversion factor for each gas type
set by the user (all models)
1. Air, nitrogen
*
2. Oxygen
*
3. Argon
*
4. Carbon dioxide (CO
2
)
*
10. Helium (Model MPC02-BBNHP1
only)
2
*
If the flow rate range changes due to a change in
the gas type, the flow rate OK range and flow rate
alarm range in the parameter setup must be
changed. When “0” is selected, set the
conversion factor in the parameter setup mode.
*
All models except Model MPC02-BBNHP1.
Factory setting for Model MPC02-BBNHP1 is
“10”.
C-19
Flow rate display
0:
Referenced to 20°C (68°F) and 1
atmosphere
1:
Referenced to 0° C (32°F) and 1
atmosphere
2:
Referenced to 25°C (77°F) and 1
atmosphere
3:
Referenced to 35°C (95°F) and 1
atmosphere
0
C-20
Inlet pressure
adjustment
0:
0-0.1 MPa (0-14.5 PSIG)
1:
0.05-0.15 MPa (7.25-21.8 PSIG)
2:
0.15-0.25 MPa (21.8-36.3 PSIG)
3:
0.25-0.35 MPa (36.3-50.8 PSIG)
4:
0.35-0.45 MPa (50.8-65.3 PSIG)
5:
0.45-0.5 MPa (65.3-72.5 PSIG)
2
The accuracy drift caused by the influence of
pressure can be compensated by adjusting the
inlet pressure setting to the actual inlet pressure.
C-21
Instantaneous flow rate
direct setup function
switching
0:
Function disabled
1:
Function enabled
1
Can be controlled by instantaneous
SP
being
changed (blinking)
C-23
PV
filter
0:
Without filter
1:
Sampling two (2) times moving-
average
2:
Sampling four (4) times moving-
average
3:
Sampling eight (8) times moving-
average
0
If the
PV
filter is used in a “2” or ”3” setting, the
operational differential pressure must be lower
than the standard differential pressure.
Do not change the setting under the control.
C-28
Analog optional scaling
function
0:
Function disabled
1:
Function enabled
0
The maximum flow rate can be optionally set.
The flow rate is set in the parameter setup mode.
Refer to parameter setup item # 13 for details.
C-29
PV
forced zero function
0:
Function disabled
1:
Function enabled
0
When the setting flow rate is zero or when the
valve fully closed mode is entered, the
PV
is
forcibly made to zero after delay time. The
shifting of
PV
by influence of pressure can be
compensated. The delay time is set in the
parameter setup mode.
FUNCTION SETUP ITEM LIST (continued)
Содержание Porter MPC Series
Страница 1: ...MPC SERIES PANEL MOUNT MASS FLOW CONTROLLER INSTALLATION PROGRAMMING USER S MANUAL FM 1038 Rev 0 4 08...
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