Nexen EN50-85V 964232 - Manual (Page 7)

7 FORM NO. L-20313-E-0612
MAINTENANCE
TROUBLESHOOTING
Cleaning the Orifice is the only maintenance required
for the Nexen EN50.
NOTE: It is not necessary to remove the Nexen EN50
from the air line.
1. Shut off the valve supplying air to the Nexen EN50.
2. Remove the Orifice from the Nexen EN50 (See
Figure 5).
3. Clean the Orifice with alcohol; then, dry the Orifice
with compressed air (See Figure 5).
NOTE: The Orifice must be completely dry before
reinstalling it into the Nexen EN50.
4. Reinstall the Orifice into the Nexen EN50 (See
Figure 5).
Figure 5
Orifice
Nexen
EN50
Symptom Probable Cause Solution
No Output
Faulty supply pressure
Verify that supply pressure is
correct.
Clogged orifice Clean the orifice.
Leakage Improper air line connections.
Inspect and correct all air line
connections.
Low or improper Span Adjustment
Incorrect Zero and Span adjustment Perform Zero and Span adjustment.
Low supply pressure
Verify that supply pressure is
correct.
Output leakage
Inspect and correct all air line
connections.
Erratic operation
Improper DC signal
Check all electrical connections and
verify that DC signal polarity and
level is correct.
Loose wires or electrical
connections
Inspect all wires and electrical
connections and replace damaged
wires or repair faulty electrical
connections.
Liquid in the air supply
Purge liquid from the air supply and
use the recommended filter.
Dirt in the magnet gap Inspect and clean the magnet gap.
WARNING
Failure of the Nexen EN50 could result
in output pressure increasing to supply
pressure, possibly causing personal injury
or damage to the equipment.