OPERATING MANUAL
MN-SST50
ED-17-09
SPRIANO® TECHNOLOGIES
- www.spriano.it – [email protected]
a TERRANOVA® Srl brand
- www.terranova-instruments.com - VAT IT07848810151
Factory & Sales: Via Gramsci 1 – 26827 Terranova dei Passerini (LO) – Italy
Head Office: Via Rosso Medardo 16 – 20159 Milano – Italy Ph: +39 0377 919119 – Fax: +39 0377 855720
Pa
g.
30
/4
8
6
MAINTENANCE
AND
TROUBLESHOOTING
Although transmitters SST5X do not require a maintenance on periodical basis, it is good
practice to regularly check the general transmitter status, the possible presence of rust or
damage on the case or on the measuring diaphragm and the presence of clogging in the process
connection.
P
ROHIBITION
!
Repair, maintenance and/or overhaul of the equipment shall only be conducted by
the manufacturer himself, or by a repairer he has qualified or authorized.
Is forbidden during the maintenance operation to use the tool as a
handle or step.
Please refer to the following pages scheme for troubleshooting.
In any case contact our technical department for help.
Condition
Potential source
Solution
The transmitter
doesn’t turn on
Supply
Check the supply voltage to be 12.5Vdc<V
supply
<30Vdc.
Polarity
Check the transmitter connection polarity.
Electrical load
Check that the load is less than the maximum allowed.
Measure is
incorrect
Process
Accurately verify the compatibility between the process
and the connection type.
Sensor drift
Apply zero input conditions to the transmitter and use
the OFFSET command.
EMC
interference
Accurately verify the possible presence of
electromagnetic interference on the supply line. Check
the PE connection.
Erratic analog
output
Wrong span
limits
Use the LRV and URV commando (or SET LRV and SET
URV) to correct the output.
Uncalibrated
analog output
Use the LOOP TEST command to verify the analog output
calibration. If it is not correct, use the CAL4-20mA
command to calibrate the output.
Incorrect HART
®
settings
Use the ADDRESS command to verify that the polling
address is set to 0.
