SFG-2000 Series User Manual 
6 
Safety Guidelines 
•  Do not place any heavy object on SFG-2000 series. 
•  Avoid severe impacts or rough handling that leads to 
damaging SFG-2000 series. 
•  Do not discharge static electricity to SFG-2000 series. 
•  Use only mating connectors, not bare wires, for the 
terminals. 
•  Do not block or obstruct cooling vent opening. 
•  Do not perform measurements at power source and 
building installation site (Note below). 
•  Do not disassemble SFG-2000 series unless you are 
qualified as service personnel. 
 
General Guideline 
 CAUTION 
(Note) EN 61010-1:2001 specifies the measurement categories and 
their requirements as follows. SFG-2000 series falls under category 
II. 
•  Measurement category IV is for measurement performed at the 
source of  low-voltage installation. 
•  Measurement category III is for measurement performed in the 
building installation. 
•  Measurement category II is for measurement performed on the 
circuits directly connected to the low voltage installation. 
Power Supply 
 WARNING 
•  Input voltage: 115/230V AC +10%, −15%, 50/60Hz 
•  The power supply voltage should not fluctuate more 
than 10%. 
•  Connect the protective grounding conductor of  the 
power cord to earth ground, to avoid electrical shock. 
Fuse 
 WARNING 
•  Fuse type: T0.125A/ 250V 
•  Only service personnel are allowed to access internal 
fuse holders. 
•  Replace the fuse with the specified type and rating 
only, for continued fire protection. 
•  Disconnect the power cord before fuse replacement. 
•  Make sure the cause of the fuse blowout is fixed 
before fuse replacement. 
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