Liquid Dosing Control Manual
9.17.150 rev A – September 2020
Page
7
of
34
ES-FLOW
The Bronkhorst Ultrasonic based flow meters are volume flow meters.
Setpoint and measurement values can be displayed in mass flow units using an internal
conversion.
2 options are currently available.
Disable protected mode
- Write value 64 to parameter 7 – Init Reset
(unlock secured parameters)
Option A – Volume Flow
(default)
- Write value 1 to parameter 243 – Capacity Unit Type Index (set to volume flow mode)
Option B – Mass Flow with fixed density
(converted mass flow mode)
- Write value 0 to parameter 243 – Capacity Unit Type Index (set to mass flow mode)
Set fixed fluid density value
- Write value
<density>
to parameter 170 – Density
(density value in [kg/m
3
])
Enable protected mode
- Write value 82 to parameter 7 – Init Reset
(lock secured parameters)
Step DDE ProPar Name
Data
Type Execute Value
Remark
Unlock Secured Parameters
1
7
0/10
Init Reset
Uint8 write
64
Unlock secured parameters
Volume Flow
2
23
1/29
Capacity Unit Type
Index
Uint8 write 1
Volume Flow
Mass Flow
2
23
1/29
Capacity Unit Type
Index
Uint8 write 0
Mass Flow (with fixed density)
3
170
33/21
Density
Float write
<density> Density for the fluid [kg/m3]
Lock Secured Parameters
4
7
0/10
Init Reset
Uint8 write
82
Lock secured parameters
