Digital Pressure Indicator DPI - Bedienungsanleitung
18 Friedrich Leutert GmbH & Co. KG
4 Perform measurement on the engine
DANGER
Wear protective glasses during the measurement as hot gas or parti-
cles come out of the engine and could injure you.
Wear hearing protection during the indication process as it can get
very loud in the engine room.
WARNING
Put on protective gloves before indicating because the surface tem-
perature of the indicator valve and the sensor can get very high
during the indication process.
Do not operate the DPI handheld device and the pressure sensor
above the allowed pressure and temperature ranges.
NOTICE
Ensure that the load and the speed is as constant as possible during
the measurement in order to get comparable results.
If the sensor cable is not connected to the sensor, insert the orange contact
into the pressure sensor and secure the contact by screwing on the knurled
nut. Pull it hand tight. The plugs of the connection cable have a “nose /
slot” connection identifier. Please pay attention to correct insertion.
Plug the sensor cable into the 4-pin connection socket of the handheld
device. Please make sure that the red marking point shows towards the
display of the handheld device and the plug is not turned.
1) Before installing the pressure sensor, clean the relevant indication
channel by fully opening the indicator valve briefly while the engine
is running in order to blow out the channel. You thus avoid the sen-
sor membrane being contaminated or damaged.
2) After blowing out close the indicator valve completely.
3) Then attach the pressure sensor to the indicator connection of the
Engine.
NOTICE
First hand-tighten the cold sensor to prevent it from seizing.
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