General Information 17
For all Protec P3000 configurations
1.4 Notes on How to Use This Handbook
Important remarks concerning operational safety and protection are emphasised as
follows:
Notice Indicates special requirements the user must comply with.
The references to diagrams, e.g. (2-1/6) consist of the Section No., Fig. No. and the
Item No. in that order. For example: (2-1/6) means Section 2, Fig. 1 and Item No. 6
(here: mains switch).
1.4.1 Symbols of Vacuum Technology
In the following some important symbols of vacuum technology as used in this hand-
book are shown:
Holder for SL3000(XL) 525-006
PRO-Check reference leak for helium 521-001
Calibrated sniffer leaks for helium
S-TL 4, 1.0 ... 1.2 x 10
-4
mbar l/s 122 37
S-TL 5, 2.0 ... 6.0 x 10
-5
mbar l/s 122 38
S-TL 6, 6.0 ... 8.0 x 10
-6
mbar l/s 122 39
Indicates procedures that must be strictly observed to prevent hazards to
persons.
Indicates procedures that must strictly be observed to prevent damage to or
destruction of the Protec P3000 leak detector.
Diaphragm pump Vacuum gauge
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