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5 troubleshooting, Troubleshooting – Eppendorf FemtoJet express User Manual

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Warning 5
External pressure is insufficient.

The minimum supply pressure required for an injection or
the Clean function was not present when the function was
triggered.

Possible cause:
There is no external pressure supply, it is not connected or
supplies too little pressure (< 4,000 hPa).

Solution:
Connect external pressure supply and select the external
pressure within the range from 4,000 – 8,000 hPa.

Warning 6
Injection pressure (or compensation pressure) is close top
the external pressure.

An injection pressure is required that is not at least
500 hPa below the external pressure (value displayed to
the upper right).

Possible cause:
External pressure is set too low.
Injection pressure has been (accidentally) set too high.
Injection pressure has been intentionally so set.

Solution:
Increase external pressure or reduce injection pressure.

Note:
This warning is issued only once. Pressing the

key will remove the error message. It will
generally be possible to continue work. However, optimal
valve regulation should not be anticipated.

Warning 7
External pressure is insufficient.

Possible cause:
There is no external pressure supply, it is not connected or
supplies too little pressure (< 4,000 hPa).

Solution:
Connect external pressure supply and select the external
pressure within the range from 4,000 – 8,000 hPa.

WARNING 005

Supply pressure

is too low

INJECT = Continue

WARNING 006

4202

Supply pressure

is lower than +500 hPa

INJECT = Continue

WARNING 007

Supply pressure

is too low

INJECT = Continue

5 Troubleshooting

Troubleshooting

5

05_Fehlersuche_en.fm Seite 81 Freitag, 29. Juni 2007 2:50 14