Bronkhorst®
Instruction Manual IQ+FLOW® Series Digital Mass Flow / Pressure Controllers for Gases
9.17.045V
15
LEDs
Time
Pushed
Indication
Green
Red
Off
Off
0 – 4 sec.
No action
. Pressing a switch shortly by accident will not start any
unwanted reaction of the instrument.
Off
Normal
flash
0,2 sec on,
0,2 sec off
4 – 8 sec.
Restore factory settings
All parameter settings (except field bus settings) will be restored to
situation of final test at Bronkhorst® production.
Normal
flash
0,2 sec on,
0,2 sec off
On
8 – 12 sec.
For FLOW-BUS only:
install a free node-address
on FLOW-BUS.
Normal
flash
0,2 sec on,
0,2 sec off
Normal
flash
0,2 sec on,
0,2 sec off
12 – 16 sec
Activate 'Configuration Mode'
. The baud rate and bus type are set to 38k4
and RS232 FLOW-BUS (Propar). The 'Configuration Mode' is recognized by
the green LED blinking 2 sec on, 0,1 sec off. The 'Configuration Mode' is
deactivated only after applying this micro-switch action again.
LED indications using micro-switch at power-up situation of an instrument
Change control mode
For switching between different functions in use of a digital meter or controller several modes are available. More
information about the available control modes can be found at parameter “Control mode”.
Pressing the switch 4x briefly with intervals of max. 1 second in normal running/operation mode will trigger the instrument
to “change” its control mode.
Change current control mode (press switch 4x briefly)
Step
Action
Indication
Time
Handling
1
Set tens of
setpoint / control
mode number
green LED flashes
0.1 sec on
0.1 sec off
Count-flashes
start when switch
is pressed:
0.5 sec on
0.5 sec off
time-out:
60 sec
Press switch and count green flashes for tens of
control mode number.
Release when wanted amount has been count.
Counts up to max. 2 and than starts at 0 again.
When counting fails, keep switch pressed and restart
counting for next attempt
2
Set units of setpoint
/ control mode
number
red LED flashes
0.1 sec on
0.1 sec off
Count-flashes
start when switch
is pressed:
0.5 sec on
0.5 sec off
time-out:
60 sec
Press switch and count red flashes for units of control
mode number.
Release when wanted amount has been count.
Counts up to max. 9 and than starts at 0 again. When
counting failed, keep switch pressed and restart
counting for next attempt.
Instrument returns to normal running/operation mode.
Changes are valid when they are made within the time-out times.
See parameter ‘Control mode’ for behavior at power-up of the instrument.
Value zero will be indicated by a period of 1 sec. off (0.5 sec. off + 0.5 sec. off).
When value zero is wanted, press switch shortly and release it again within 1 sec.
Before each action of flash-counting, the LED’s to be used for counting will flash in a high frequency.
(Pattern: 0.1 sec on, 0.1 sec off). As soon as the switch is pressed-down, this LED (or both LED’s) will be off and the counting
sequence will start.
