11451 Belcher Road South, Largo, FL 33773 • USA • Tel +1 (727) 447-6140 • Fax +1 (727) 442-5699 • sales@onicon.com
F-5500 Thermal Mass Flow Meter Manual 06/17 - 2030 / 107023 Page 78
Model F-5500
COMMUNICATIONS
MAINTENANCE
Model F-5500
PRECAUTIONS
WARNING! BEFORE ATTEMPTING ANY MAINTENANCE, TAKE THE NECESSARY
SAFETY PRECAUTIONS BEFORE REMOVING THE PROBE FROM THE DUCT
(EXAMPLE: PURGE LINES OF TOXIC AND/OR EXPLOSIVE GAS, DEPRESSURIZE,
ETC...).
WARNING! EXPLOSION HAZARD. DO NOT REMOVE OR REPLACE COMPONENTS
OR FUSES UNLESS POWER HAS BEEN DISCONNECTED WHEN A FLAMMABLE OR
COMBUSTIBLE ATMOSPHERE IS PRESENT.
WARNING! EXPLOSION HAZARD. DO NOT DISCONNECT EQUIPMENT WHEN A
FLAMMABLE OR COMBUSTIBLE ATMOSPHERE IS PRESENT.
Access to Electronics
Accessing electronics is not normally required for maintenance purposes. If a loose
connection is suspected, unscrew the cap of the meter, unscrew the two phillips
captive screws through the display and open the display assembly to access the
wiring terminations.
CAUTION! BE SURE POWER TO METER IS SWITCHED OFF BEFORE ATTEMPTING TO
ACCESS ELECTRONICS. If there is a problem and a loose connection is not found,
please contact ONICON Customer Service for technical assistance at 727-447-6140.
Precautions
Maintenance: Precautions
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