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60 Description of the Menu

iina74e 06.fm technical handbook(1408)

6.6.1.4 HYDRO•S

Main Menu > Settings > Vacuum settings > HYDRO•S

Notice: This setting is only valid, if mass mode is set to „

He“. See Chapter 6.3.

You can always switch HYDRO•S on and off manually, even if automatic is enabled.

Notice: Switching HYDRO•S manually, deactivates the automatic until the next

measuring cycle (STOP/START).

6.6.1.5 Leak rate internal test leak

• Main Menu > Settings > Vacuum settings > Leak rate internal test leak

The value of the internal test leak can be set. See Chapter 4.2.2.7 Numerical Entries

for the description of the entry.

Softkey 7: enable

If HYDRO•S automatic is enabled, the UL5000 switches HYDRO•S on and

off at the following conditions:

HYDRO•S is switched on, if

• ZERO is off and

• p1<0,3mbar and

• Leak rate is between 2×10

-10

mbar l/s and 3×10

-10

mbar l/s and

• HYDRO•S was not switched on manually

The lower detecting limit for HYDRO•S is 1×10

-10

mbar l/s

Softkey 3: disable

HYDRO•S is disabled. Leak rate higher than 3×10

-10

mbar l/s

If HYDRO•S is disabled, it can not be switched on/off manually anytime.

Softkey 5: Automatic OFF

HYDRO•S can be switched on/off manually by Softkey 4 in display mode

(See Chapter 5.4.6)

Warning

Normally there is no reason to edit the leak rate of the internal test leak besides after

a change of the internal test leak. A wrong leak rate of the internal test leak will lead

to wrong leak rate readings!

Inficon UL5000 User Manual

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