Bronkhorst LIQUI-FLOW mini (from 01-07-2013) - Manual (Page 21)

LIQUI-FLOW™ mini © 2013 Bronkhorst High-Tech BV
Bronkhorst High-Tech BV
21
Value Mode Instrument action Setpoint
source
Master
source
Slave
factor
slave factor /
100%
analog
input
18 RS232 Controlling RS232
20 Valve steering Setpoint is redirected to Valve Out with
controller idle
21 Analog valve
steering
Analog input is redirected to Valve Out with the
controller idle
22 Valve safe state
After power-up the control mode will be set to 'Analog input' or 'BUS/RS232', depending on the customer's default setting for
analog or digital operation. Except when the actual control mode setting is other than 0, 1, 9 or 18 the actual control mode setting
is maintained. For more information see parameter 'IOStatus', section 4.2.2.
i
www
For dual interface operation or slave factors, see document nr. 9.17.023: Operational instructions for digital
instruments. http://www.bronkhorst.com/files/downloads/
manuals_english/917023_operation_instructions_digital_instruments.pdf
4.1.2 Fluid information
The following parameters give information about the selected fluid range.
Fluid Number
Type Access Range FlowDDE FLOW-BUS Modbus
Unsigned char RW 0…7 24 1/16 0x0030/49
The ‘Fluid number’ is a pointer to the set of calbration parameters. Each selectable fluid has its own set of calibration parameter
values. Parameter value 0 = fluid 1 and parameter value 7 = fluid 8. Up to eight fluids can be stored in an instrument. Default value
= 0 (fluid 1).
Fluid Name
Type Access Range FlowDDE FLOW-BUS Modbus
Unsigned char[10] RW - 25 1/17 0x8188…0x818C/33161…33165
This parameter consists of the name of the selected fluid number, e.g. ‘ Air ’.
Fluid Unit
Type Access Range FlowDDE FLOW-BUS Modbus
Unsigned char[7] RW - 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 FlowDDE FLOW-BUS Modbus
Float RW ±1E-10…
±1E+10
21 1/13 0x8168…0x8169/33129…33130
Capacity is the maximum value at 100% for direct reading in sensor readout units.
Fluid Capacity (@0%)
Type Access Range FlowDDE FLOW-BUS Modbus
Float RW ±1E-10…
±1E+10
183 33/22 0xA1B0…0xA1B1/41393…41394
This is the capacity zero point for direct reading in sensor readout units.