What happens on power up ?
Power failures
a) The unit runs a self check (start up). Display shows ”Unit OFF”.
b) Short term power failures (<24 hrs) during automatic operation
No samples are taken, the inputs are not interrogated, however, the internal
clock continues to run during power failure.
On return of power the unit initiates a self check.
The sampler now continues to operate as normally.
If the power failure occurred during a sample cycle the water in the dosing
glass is now released into a bottle.
c) Long term power failures (>24 hrs) during automatic operation:
No samples are taken, the inputs are not interrogated, however, the internal
clock continues to run during power failure.
On return of power the unit initiates a self check. The sampler now continues
to operate as normally.
d) Long term power failures (>500 hrs) have the following effect:
Internal buffer accumulator is discharged. An error message is displayed (for
message acknowledgement please see chapter “Problems and
solutions”).
Reset operational data again. The unit must then be connected to mains
power for at least 1 week (accumulator recharge). The sampler will operate
normally during this time.
On/off switching using the ON
and OFF push buttons
Switch off (operate OFF): This aborts the automatic cycle. Display shows
"OFF". The unit should not be switched off during a sample cycle, always
wait until the unit has completed the cycle. The sampler is switched off but
still connected to the mains supply therefore heating (option) continues to
operate.
Switch on (operate ON): Display shows "ON". The unit can be restarted by
operating the “AUT” button.
Electrical installation
asp-port d 2 se
12