Blowback Time Configuration; Status Messages In The Display - Bühler technologies RSS24 Guía Rápida

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MEASURE
BLOWBACK
The display will show a parameter screen MEASURE or BLOW-
BACK.
MEASURE is the time period for the cleaning intervals.
The time period can be set to a value from 0 min and 99 h
59 min.
Important: BOTH times (TH+TL) must be set to the same value.
The display Ta shows the current time elapsed.
MEASURE
= 00:01h
TH
TL = 00:01h
Ta = 00:00h
Fig. 2: Parameter screen: Cleaning interval
BLOWBACK is the parameter screen for the blowback time.
The blowback time can be set to a value from 0 to
99.59 seconds.
Important: BOTH times (TH+TL) must be set to the same value.
The display Ta shows the current time elapsed.
BLOWBACK
= 10:00s
TH
TL = 10:00s
Ta = 00:00s
Fig. 3: Parameter screen: Blowback time
To change the time in the respective mask, click the <OK> but-
ton. Use the arrow keys (◄; ►) to move the cursor (flashing
black box) to the number you wish to change. Now use the ar-
row keys (▲;▼) to change the number. Once the numbers
have been changed as necessary, click <OK> to confirm. Use
the <ESC> key to exit edit mode and cancel the entries. Once
all times have been changed as necessary, press the <ESC> key
several times to return to normal operating mode (also see
Fig. 1).
The same procedure can also be used to set the controller
clock. In the settings screen you can now use the arrow keys
(▲;▼) to select SETUP and click <OK>.
Then select Clock. Then use the arrow keys to change the val-
ues as described for the parameter screens.
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STOP
PROGRAM
SETUP
NETWORK
DIAGNOSTICS
The clock has a power reserve of approx. 80 h at 25 °C in the
event of a power failure, after which time it will need to be
set. The clock does not affect proper controller function and
can therefore also be skipped.
Note: You can also change the menu language or backlight
settings in the parameter menu using the same procedure de-
scribed for setting the clock.

5.3 Blowback time configuration

When configuring the blowback time, remember the com-
pressed air blowback vessel should ideally be completely
empty during blowback. Depending on the vessel size, pres-
sure and contamination of the filter this can take between 5
and 20 seconds. The blowback time must be set accordingly.
Further note, the controller uses a 0.5 second delay when
switching the sample gas and blowback valves to prevent
both valves simultaneously being open during switch-over.
Note: After configuring the blowback control, close the hous-
ing cover tight!

5.4 Status messages in the display

By default, the display shows status messages immediately
after switching on the blowback control.
BACK FLUSHING
CONTROL UNIT
V 1.008
This message appears when starting the blowback control or
after pauses switching over the sample gas
or blowback valves.
MESSAGE CONFIG.
START SCREEN
CLOCK
LCD
MENU LANGUAGE
FACTORY SETTINGS
BX460001 ◦ 12/2019