Bronkhorst IQ+FLOW (till 01-07-2013) - Manual (Page 12)

9.17.045 page 12
3.3 Manual interface: micro-switch, LEDs and rotary switches
In this section the manual instrument interfaces are described. In section 3.3.1 the micro-switch operation is discussed
(if present), section 3.3.2 specifies the LED functionality and in section 3.3.3 the rotary switch operation is described.
3.3.1 Micro-switch operation (single-channel versions only)
By means of manual operation of the micro push-button switch some important actions for the instrument can be
selected or started. These options are available in both analog and digital operation mode.
These functions are:
• Reset alarm
• Reset instrument (firmware program reset)
• Auto-zeroing
• Restore factory settings (in case of accidently changing of the settings)
Using digital RS232 or RS485 operation it is also possible to set:
• Bus-address (only required for RS485)
• Baudrate
The tables below describe the micro-switch functions that can be started in respectively normal operation mode and
during power-up:
LEDs Time
Pushed
Indication
   Green    Red
Off Off 0 – 1 sec No action. Pressing a switch shortly by accident will not
start any unwanted reaction of instrument.
Pressing the switch 3x briefly with intervals of max. 1 sec.
forces the instrument to indicate its bus-address/MAC-ID
and baud rate. Check chapter 3.5 for more details.
Off Off 1 – 4 sec In case of min/max alarm or counter batch reached:
Reset alarm (only if reset by keyboard has been enabled)
For FLOW-BUS only: if the node address is occupied, this
function will install a free node-address on FLOW-BUS.
Off On 4 – 8 sec Reset instrument
Instrument program will be restarted and all warning and
error messages will be cleared. During start-up the
instrument will perform a (new) self-test.
On Off 8 – 12 sec Auto-zero
Instrument will be re-adjusted for measurement of zero-
flow (not for pressure meter/controller). See section 2.10.
On On 12 – 16 sec Prepare instrument for FLASH mode for firmware update.
Instrument shuts down and both LEDs turn off.
At next power-up instrument will be active again.
LED indications using micro-switch at normal operation mode of an instrument
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 BHT production
Normal flash
0,2 sec on,
0,2 sec off
Off 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 deactivated only after applying this
micro-switch action again.
LED indications using micro-switch at power-up situation of an instrument
Multi-functional switch
Status LED
Error/Warning LED