PART THREE - OPERATION
SECTION 6 - TEST/MAINTENANCE
Rev. 2-300
Accu4™ Low-range Turbidimeter System
65
6.3 OVERFEED RESET
(relay timers)
6.4 OUTPUT (1 and 2)
Analog Test Signals
☞
When a relay overfeed timer “times out,” as indicated by its
blinking annunciator, the timer must be manually reset using
TEST/MAINT menu screens. The relay annunciator stops
blinking after reset.
All overfeed timers are manually re-
set at once.
1.
With the
screen displayed, use
Ø
Ø
key
to select the “OVERFEED RESET” line.
2.
Press
ENTER key
to display “OVERFEED RESET” screen.
3.
Press
ENTER key
again to reset all relay overfeed tim-
ers at once (“OVERFEED RESET: DONE” screen
appears, acknowledging reset has occurred).
4.
To return to the “TEST/MAINT” top-level menu screen,
press
ESC
or
ENTER key
.
The analyzer can provide analog output test signals of a
desired mA value to confirm operation of connected de-
vices.
This procedure provides an Output 1 test signal.
Provide an Output 2 test signal in the same way using
its respective menu screens.
1.
With the
screen displayed, use
Ø
Ø
key
to select the “OUTPUT 1” line.
2.
Press
ENTER key
to display a screen like
.
NOTE:
The mA test signal for Output 1 is now active.
Its value is shown on this screen.
