Closing Opera�Ons; Cleaning Of Units Under Test - LR-Cal LSP 1000-H Bedienunganleitung

Druckvergleichsprüfpumpen
MANUAL
Pressure comparison pumps
6.6 Closing opera�ons
• When work is finished, fully turn out (an�-clockwise) the spindle pump.
• Open the locking lever (1) -
• Close the locking lever (1)
reference pressure instrument.
The system is now ready for another test and any residual pressure is relieved.
6.7 Cleaning units under test (if device under test is an analogue burdon tube pressure gauge)
This cleaning/degreasing process is only suitable for use with pressure gauges with either
phosphor bronze, beryllium copper, Monel or stainless steel bourdon tubes in the form of a „C"
(mainly pressure ranges
It is not advisable to degrease pressure gauges with steel bourdon tubes since a very small
amount of corrosion on the bore of a bourdon tube can cause inaccuracies of reading and early
failure of the tube.
Wear safety goggles!
Protect eyes from flying par�cles and liquid splashes.
This method of cleaning is not suitable for use with pressure gauges which are fi�ed with coiled
bourdon tubes (mainly ranges above 40 bar), nor any gauges which are to be used with oxygen,
as complete removal of oil is not assured. Please contact DRUCK & TEMPERATUR Leitenberger
GmbH.
Equipment (not inluded in scope of supply of DRUCK & TEMPERATUR Leitenberger GmbH)
This consists of a syringe and a special needle with the point bent through 90°.
Instruc�ons:
1. Fill syringe with solvent (suitable cold degreasing liquid).
2. With gauge connec�on poin�ng upwards put needle into connec�on and insert by feel the
point into the hole leading to the tube.
3. Inject the solvent. Ideally the tube should be half full.
4. Shake gauge in various a�tudes to agitate solvent.
5. Suck solvent back into syringe, holding gauge at an angle.
6. Check that solvent removed is clean. To be sure that all oil has been removed, repeat cleaning
process un�l solvent removed from gauge is as clean as that put in.
Filling with
Tel. +49 (0) 7121-90920-0 • Fax +49 (0) 7121-90920-99 •
half turn is fine.
hand-screwed
40 bar).
≤
solvent
Cleaning of gauges
DRUCK & TEMPERATUR Leitenberger GmbH • Bahnhofstr. 33 • D-72138 Kirchentellinsfurt • GERMANY
LR- Cal LSP-H
LR- Cal LSP-H
, before you dismount device under test and/or
Removing the
solvent
DT -Info@Leitenberger.de •
36
www.druck-temperatur.de