Effer DMU 2000 - Page 54

Electronic device DMU2000 - DMU3000 - DMU3000 PLUS
THE POWER OF PERFORMANCE
54
Electronic device DMU2000 - DMU3000 - DMU3000 PLUS
CHECK
Check that the error state disappears and a pressure value of about 135 appears on computer when
carrying out the electric by-pass on transducer connecting cable, as outlined in Chapter 17 (This check
is equivalent to connecting a new transducer electrically only, without inserting it into cylinder, and
you should read a pressure value of 0 bar). The pressure transducer is damaged.
SOLUTION
Replace the pressure transducer.
! FAILURE ANALYSIS
If the computer is connected to crane (tools sensor diagnostics DMU hardware) the error
state is displayed:
- “1” appears next to: “pressure sensors disconnected”
CHECK
Check that the error state disappears and a pressure value of about 135 appears on computer when
carrying out the electric by-pass on transducer connecting cable, as outlined in Chapter 17 (This check
is equivalent to connecting a new transducer electrically only, without inserting it into cylinder, and
you should read a pressure value of 0 bar). If the error state continues and the pressure value is very
dierent from 135 bar, the pressure sensor connecting cable is damaged.
SOLUTION
Restore electric connection.