Functions of the operating and display elements
11
Display elements/LEDs
All measuring results as well as activated functions are displayed at
Testomat
®
808 via LEDs.
The LEDs above the function keys illuminate/flash when the respec-
tive function is activated.
The LED illuminates if the instrument is switched
on via the power switch on the front of the instru-
ment and is operating.
Limit value LEDs (red/green) for displaying the
measuring result:
Limit value not achieved => green LED illuminates
Limit value exceeded => red LED illuminates
When a new measuring is running, the result of
the previous measurement flashes.
The LEDs K1 and K2 display the status of the
relays. They illuminate if the respective relay has
been switched (also see the section entitled
“Switching functions of the relays K1 and K2” on
page 24)!
10% – 90%: These LEDs display the calculated
filling level of the indicator bottle (also see the
section entitled “Measuring fault analysis” on page
35).
E4 – E1: These LEDs display current errors after
simultaneously pressing key 3 and key 4 for ap-
prox. 2 seconds (also see the section entitled
“Error messages/Troubleshooting” on page 32).
E4 flashes: The pump head has been in operation
for 150 hours and must be replaced (also see the
section entitled “Pump head maintenance mes-
sage” on page 39)
Cancelling error messages/warning messages
Press key 4 to acknowledge the messages and,
if necessary, eliminate the cause of the fault.
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