DORCHESTER DR-FC 25, Installation, Commissioning And Maintenance Instructions

Page: 71 / 98

Setting the display contrast
Instruction Manual DR-FC 71
is
The service interval is based on the number of burning hours. This can be set
to 500, 1000 and 1500 hours. The standard setting for number of hours is
500.
Once the preset number of hours is reached, a message to this effect will
appear. See paragraph
’6.4 Service condition’ .
Adjust the service interval via:
•
S
:
SERVICE INTERVAL
Figure 9.8 shows the related display.
Refer also to paragraph ’11.2 Determining service interval’ .
9.8 Setting the display
contrast
Adjust the display contrast via:
•
S
:
CONTRAST DISPLAY
The standard setting is 100%. The range is from 0 through 100%.
Figure 9.9 shows the related display.
9.9 Setting the backlight
time
Adjust the backlight time (the time that the display backlight stays lit after the last
button is pressed) via:
•
S
:
TIME BACKLIGHT
The standard value is 255 sec. The range is from 0 through 255 seconds.
Figure 9.10 shows the related display.
9.10 Setting the display
scroll speed
Adjust the display scroll speed via:
•
S
:
SCROLLSPEED
The standard setting is 10. The range is from 0 through 100. Setting the
value too high or low will make scrolling difficult.
Figure 9.11 shows the related display.
SERVICE INTERVAL
» 500
^ 1000 BURNING HOURS
È 1500
Figure 9.8 Service interval
CONTRAST DISPLAY
» 95 %
Figure 9.9 Display contrast
TIME BACKLIGHT
» 255 sec
Figure 9.10 Backlight time
SCROLLSPEED
» 10
Figure 9.11 Scroll speed