Bronkhorst Multibus User Manual
Page 48
BRONKHORST
®
Page 48
Operational instructions for digital multibus instruments
9.17.023
11.4 M
ICRO
-
SWITCH USE FOR READING
/
CHANGING CONTROL MODE
:
11.4.1 Read 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 2x briefly with intervals of max. 1 second in normal running/operation mode will trigger the
instrument to “show” its control mode. For indication of the control mode number the green LED will flash the
amount of tens and the red LED the amount of units in the number. The flashes are called “count-flashes” and have a
pattern of 0.5 sec. on, 0.5 sec. off. The control mode numbers can be found at parameter “control mode”
View current control mode (press switch 2x briefly)
LED
time
indication
green
red
amount of count flashes (0...2)
off
0 ... 2 sec. maximum tens in control mode number
off
amount of count flashes (0...9)
0 ... 9 sec. maximum units in control mode number
Value zero will be indicated by a period of 1 sec. off (0.5 sec. off + 0.5 sec. off).
11.4.2 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 behaviour 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.