Set-up and scaling the display
The sensor is factory preset to monitor the range 5…100 cm /
sec of water and setpoint position of LED 7. If the adjustments
are required, follow these instructions.
High flow adjustment
This adjustment calibrates the sensor so that all LEDs are lit
when the maximum flow velocity is reached.
Allow the maximum flow velocity to circulate through the
system and keep it constant.
1
Press the pushbutton and hold. LED 9 lights,
after 5 seconds it flashes.
2
Release the pushbutton.
3
Setpoint adjustment
If a faster response time is desired (low setpoint = fast
response with rising flow, high setpoint = fast response time
with falling flow), adjust the setpoint as shown.
Briefly press either pushbutton
or
and release.
The setpoint LED flashes.
1
Press the pushbutton
or
as often as required. The
setpoint shifts by one LED position in the direction shown
by the pushbutton.
2
Output configuration
Factory default of the switching output is normally open (out-
put turns on when flow is above setpoint). The output can be
changed to normally closed as follows.
Press the
pushbutton and hold. LED 0 lights, after 5
seconds it flashes.
1
Continue to hold the pushbutton, after 10 seconds the
current output setting is displayed (LEDs 5…9 orange =
normally open output).
2
Continue to hold the pushbutton, after 15 seconds LEDs
0…4 flash orange. Release the pushbutton. The output
has been changed to normally closed.
3
Return all settings to factory default
Press the
pushbutton and hold. LED 9 lights, after 5
seconds it flashes.
1
Continue to hold the pushbutton, after 15 seconds LEDs
0…9 flash orange. Release the pushbutton. All settings
have been returned to factory default.
2
Low flow adjustment
If the sensor is used in media other than water, a low flow
adjustment should be performed. This adjustment must only
be carried out
after
a high flow adjustment.
Allow the minimum flow velocity to circulate through
the system (or ensure no flow if that is the minimum
condition) and keep it constant.
1
Press the pushbutton and hold. LED 0 lights,
after 5 seconds it flashes.
2
Release the pushbutton.
3
SI5000 card 3/3/08 3:36 PM Page 3