Yokogawa Single Channel Oxygen Analyzer System ZR22/ZR402 - Manual (Page 181)

IM 11M12A01-03E 11-9
11. Inspection and Maintenance
11.2 Inspection and Maintenance of the Converter
The converter does not require routine inspection and maintenance. If the converter does
not work properly, in most cases it probably comes from problems or other causes.
A dirty touchpanel should be wiped off with a soft dry cloth.
11.2.1 Replacing Fuses
The converter incorporates a fuse, as indicated in Figure 11.5. If the fuse blows out,
replace it in the following procedure.
CAUTION
• If a replaced fuse blows out immediately, there may be a problem in the circuit. Go
over the circuit completely to find out why the fuse has blown.
• This fuse is for protecting the main power supply circuit and does not provide
overcurrent protection for the heater temperature control circuit. For overcurrent
protection circuitry, refer to Section 12.1.2.2, "Heater Temperature Failure."
F11.5E.EPS
Fuse
Figure 11.5 Location of Fuse in the Converter