26
DIGITAL FLOW SENSOR
( INSTRUCTION MANUAL )
MF01
How to use
–
Operation setting / Modbus RTU instruction
Press button return measurement mode.
Press button over 3 sec.
●
Bottom Value Display
The minimum pressure and instantaneous flow, from when the
power was supplied to this moment, is detected and updated.
< Operation >
Press button over 3 sec. at the measurement mode. The
minimum value will be displayed flashing, and is held.
Press
button return to the measurement mode.
●
Key Lock / Unlock Mode
To prevent errors occurring due to unintentional changes of
the set values. If a button operation is performed while the key
lock setting is ON, [
LoC
] [
on
] is displayed for 1 sec.
< Operation >
Press
button over 5 sec. at measurement mode to select
key lock/unlock setting.
Measurement mode
bo-
0.0
0.8
0.8
Flashing alternately
Lock
Selected Mode
Flashing
alternately
Key Lock / Unlock Setting
Press or button
to select locking
or unlocking of the key.
Unlock
Lock
Flashing
alternately
Displayed for 1 sec.
Flashing
alternately
LoC
LoC
LoC
LoC
off
off
on
* NOTE: If a button operation is performed while
the key lock setting is ON, [
LoC
] will displayed.
Error code
Explanation
Operation
0000H
ID Number ( 0 ~ 255 )
Range : 0 ~ 255
Read /
Write
0001H
Baud rate setting
0 : 9600 bps
1 : 19200 bps
2 : 38400 bps
Read /
Write
0002H
Transmission format setting
0 : N.8.1
1 : E.8.1
2 : O.8.1
Read /
Write
0003H
Communications protocol setting
0 : RTU
Read /
Write
0004H
Measured flow rate range
0 : 0~500 mL/min
1 : 0~1000 mL/min
2 : 0~5 L/min
3 : 0~10 L/min
4 : 0~50 L/min
5 : 0~100 L/min
6 : 0~200 L/min
Read
0005H
Instantaneous flow value
Read
0006H
Flow unit
0 : LPM ( L/min or mL/min )
1 : CFM ( ft
3
/min )
Read /
Write
0007H
Decimal place for flow value
0 : None
1 : One decimal place 0.1
2 : Two decimal places 0.01
3 : Three decimal places 0.001
Read
0008H
Accumulated flow value ( ADL )
XXXX 9999
Read
0009H
Accumulated flow value ( ADH )
9999 XXXX
Read
000AH
Flow reference standard
0 : ANR ( Standard condition )
1 : NOR ( Normal condition )
Read /
Write
000BH
Flow sensor display mode
0 : Instantaneous flow
1 : Accumulated flow
Read /
Write
000CH
Accumulated value hold
0 : None
1 : 2 min/times
2 : 5 min/times
Read /
Write
000DH
Flow display refresh time
0 : 200 ms
1 : 500 ms
2 : 1000 ms
Read /
Write
Modbus RTU instruction
