Control Mode - Readout/Change - BRONKHORST ES-FLOW 1 C Series Instruction Manual

5.5.1.2

Control mode - readout/change

Reading control mode
· By briefly pressing the switch 2 times with intervals of up to 1 second in normal operation mode, the instrument shows
its current control mode with a series of consecutive LED indication patterns.
The number of flashes corresponds to the current value of parameter Control Mode (see
·
Step Pattern
1. Green
2. Red
Examples:
for value 1 (control mode 'Analog input'), the green LED will flash 0 times and the red LED 1 time
·
· for value 22 (control mode 'Valve Safe State'), the green and red LED will each flash 2 times
Changing control mode
· By briefly pressing the switch 4 times with intervals of up to 1 second in normal operation mode, the instrument enters a
state in which the control mode can be changed.
· This is done in 2 steps, each represented by a LED indication pattern (green or red; see table below).
The number of flashes corresponds to the available values of parameter Control Mode (see
·
· At the start of each step, the according LEDs starts flashing fast (0.1 second on, 0.1 second off). By pressing and holding
the switch, the associated action is started and the flashing slows (05. seconds on, 0.5 seconds off).
Step Pattern
1. Green
2. Red
To execute a step, follow these instructions:
· Press and hold the switch (flashing slows)
· To select value 0 (zero), release the switch within 1 second, otherwise:
Count the number of LED flashes
·
· Release the switch when the required value is reached
In case you lose count, keep the switch pressed and wait until the flash count reaches its maximum and restarts
·
On completion of step 1, the instrument automatically advances to step 2. When both steps have been completed, the
instrument returns to its normal operation mode.
If the switch is not pressed within 60 seconds after starting a step, all changes are canceled and the instrument returns to its
normal operation mode.
Note that this procedure also sets the
digitally).
18
Indication
l l
number of flashes indicates the tens of the parameter value
l l
number of flashes indicates the units of the parameter value
Maximum Action
flash
count
l l
2 set tens of parameter value
l l
9 set units of parameter value
default control mode
Instruction Manual ES-FLOW™ 1xxC
Bronkhorst®
of the instrument (contrary to changing the control mode
Special parameters).
Special parameters).
9.17.153A