5Start-up
1. Open the equalizing valve.
2. Slowly open the high-pressure line.
3. Close the equalizing valve or the by-
pass of the valve block.
4. Open the low-pressure line.
Note!
Carry out, if necessary, a zero point check
at the dp cell as described in section 6.3,
and restart the instrument.
6 Setting
6.1 Write protection
The instrument has two write protection func-
tions:
WRITE PROTECTION
to prevent the operating data from being
changed unintentionally.
SPAN PROTECTION
as an additional write protection for the
span setting.
The write protection at switch 4 of the DIL
switch must first be switched OFF before
various operating functions can be carried
out and switched ON again afterwards.
6.2 Selecting the gas type
The desired gas type can be selected using
the positions of switches 1 and 2 according
to the table and figure below.
Gas 1 1 OFF 2 OFF
Gas 2 1 ON 2 OFF
Gas 3 1 OFF 2 ON
Gas 4 1 ON 2 ON
Fig. 8 ⋅ DIL switch with switches 1 to 4
ON
OFF
1
2
3
4
Gas type
Span protection
Write protection
16
EB 9527-1 EN
Setting
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