Bronkhorst®
Instruction Manual EL-FLOW® Prestige
9.17.084N
40
Value
Mode
Instrument action
Setpoint source
7
Setpoint 100%
Controlling, setpoint fixed to 100%
8
Valve Fully Open
Controller disabled, valve fully opened
9
Calibration Mode Calibration mode enabled
(factory only)
10
Analog Slave
Acting as slave of other instrument in analog mode
Analog Input
x
Slave
Factor/
100%
12
Setpoint 0%
Controlling, setpoint fixed to 0%
13
FLOW-BUS
Analog Slave
Acting as slave of other instrument on FLOW-BUS, slave
factor is set by analog input signal
RS-485 only: FLOW-BUS
master output x
Analog Input
18
RS232
Controlling, safe state deactivated
Fieldbus/RS-232
20
Valve Steering
Controller disabled, setpoint redirected to
Valve output
21
Analog Valve
Steering
Controller disabled, analog input redirected to
Valve output
22
Valve Safe State
Force instrument in
Immediately after power-up,
Control Mode
is set to 'Analog input’ or ‘BUS/RS232’ automatically, depending on the (requested)
default setting for analog or digital operation. If
Control mode
is set to value 0, 1, 9 or 18, the instrument returns to its
default control mode at the next power-up or reset. Other values are retained after power-up or reset.
·
See section
for more information about the default control mode.
·
See section
for information about changing the control mode using the
multifunctional switch.
·
Parameter values 3, 8, 20 and 21 can be used regardless if the controller is enabled or not. See also parameter
Sensor
Type
·
Control Mode
values 2 and 13 are only effective in a FLOW-BUS system; see also section
4.2.3
Fluid set
For changing fluid, flow range or operating conditions, using the FlowTune software is strongly advised. FlowTune checks
any changes for compatibility of the process conditions with the instrument. When the parameters described in this section
are changed manually, no such checks are performed, and the instrument output may become disordered or the
instrument may even get damaged if used in conditions the instrument is not suited for. When in doubt, consult your
Bronkhorst representative.
Fluid Set Index
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW
0…7
24
1/16
0x0030/49
With this parameter, any of the pre-configured fluids (up to 8) can be selected. Each fluid has its specific (configurable)
properties, such as
Fluid Name
,
Capacity
, etc.
Default value: 0 (fluid 1).
Note that the selected value is equal to the fluid number minus 1 (value 0 corresponds to fluid 1, value 1 to fluid 2, etc.)
Fluid Name
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char[10]
RW
-
25
1/17
0x8188…0x818C/33161…33165
This parameter contains the name of the current fluid.