TESTO 6446 Instruction Manual page 32

Compressed air meter
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* To reduce the value:
Allow the display to run through to the maximum setting value. After this,
the run-through starts again from the minimum setting value. Set the
display unit Uni before you set the values for the SPx, rPx, ASP and AEP
parameters. In this way, rounding up/down errors are avoided during the
internal conversion into other units and the exact values required are
provided.
Condition at delivery: Uni = nm3h.
If no button is pressed for 15 seconds during the configuration process,
the instrument returns to run mode with unchanged values.
Switching from menu level 1 to level 2
Locking – unlocking
To prevent unintentional wrong entries the instrument can be electronically
locked. Condition at delivery: Not locked.
32
Press the Mode/Enter button until
EF
is displayed.
Briefly press Set.
The first parameter of the submenu is
displayed: HI.
Make sure that the instrument is in
normal work mode.
Press
Mode/Enter
10 seconds.
Loc
is displayed.
During
operation,
displayed, if you try to change the
parameter values.
To unlock: Press for 10 seconds
Set
Mode/Enter +
.
Set
for
+
Loc
is
briefly
uLoc
is displayed.

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