Page 29 Instruction manual Parker X-Flow FM-1407 Rev - 11/2021
4.1.3 Fluid Information
Next parameters give information about the fluid range of the instrument.
Fluid name
Type
Access Range FlowDDE Flowbus® Modbus® PDU
Unsigned
char[10]
RW
-
25
1/17
0x8188..0x818C/33161..33165
Fluid name consists of the name of the fluid. Up to 10 characters are available for storage of this name.
Fluid unit
Type
Access Range FlowDDE Flowbus® Modbus® PDU
Unsigned char[7] R
-
129
1/31
0x81F8..0x81FB/33273..33276
The Fluid unit can be read by parameter ‘capacity unit’. This parameter contains the unit in maximal 7
characters.
Fluid Capacity (@100%)
Type Access Range
FlowDD
E
Flowbus® Modbus® PDU
Float R
±1E-10…
±1E+10
21
1/13
0x8168..0x8169/33129..331
30
Capacity is the maximum value (span) at 100% for direct reading in sensor base units.
Fluid Capacity (@0%)
Type Access Range
FlowDDE Flowbus® Modbus® PDU
Float R
±1E-10…
±1E+10
183
33/22
0xA1B0..0xA1B1/41393..41394
This is the capacity zero point (offset) for direct reading in sensor base units.
4.1.4 Auto Zeroing
To start the auto zero-procedure two parameters should be written:
Control Mode
Type
Access Range FlowDDE Flowbus® Modbus®
Unsigned int
RW
0…18
12
1/4
0x0024/37
Check section 3.10.1, “Basic Parameters”, for available control modes.
Calibration Mode
Type
Access Range FlowDDE Flowbus® Modbus®
Unsigned int
RW
9
58
115/1
0x0E61/3682
Value Mode
Instrument action
0
IDLE
Idle
9
AUTO_ZERO
Auto-zeroing
255
ERROR
Idle
Procedure:
Step 1: Set Control Mode to CALIBRATION_MODE (9)
Step 2: Set Calibration Mode to AUTO_ZERO(9)
Step 3: Check Calibration Mode,
IDLE
Auto-zeroing succeeded
AUTO_ZERO Auto-zeroing active
ERROR
Auto-zeroing failed
4.1.5 Controller Response Adjustment
The controller settling time of X-Flow™ instruments is factory adjusted to approximately 1 second at
customer process conditions.
When real process conditions differ from supplied data, or when a faster or slower controller response is
needed, a readjustment can be performed.
Settling time is defined as the time for the flow signal to reach the setpoint value (and stay)
within
±
2% of the initial setpoint
Summary of Contents for X-Flow FM-1407
Page 1: ...11 FM 1407...
