Azbil MVC10A, User Manual

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Maintenance and troubleshooting of this instrument Azbil Corporation
5-4 Model: MVC10A/10F - Multivariable Air Flow Meter
Withstand voltage
Across the power terminals (AC terminals L and N short-circuited) and grounding
terminal (G)
• 250 V AC, 1 minute, allowable current 10 mA
Across the pulse output terminal (P+ terminal and COM terminal short-circuited) and
grounding terminal (G)
• 100 V AC, 1 minute, allowable current 10 mA
Across the current output terminal (I+ terminal and I- terminal short-circuited) and
grounding terminal (G)
• 100 V AC, 1 minute, allowable current 10 mA
Replacing a fuse
Replace the fuse in the following steps:
(1)
Interrupt the supply to the power terminals L and N of this instrument.
Caution: Never perform the operation while the system is energized. Otherwise,
damage to equipment and electric shock may result.
(2) Remove the covers for the main body and the power supply unit.
(3) Remove the fuse holder cover.
(4)
Replace the fuse. Be sure to use the specified fuse to assure safety.
Specified fuse: MF60NR, 250 V, 2 A (Toyo Fuse Co., Ltd.) or equivalent
Rated voltage 250 V; Rated current 2 A; Fusing characteristics Class B; Size
f
6.4
×
30
(5) Bring back the fuse holder cover to the original position.
(6) Attach the covers for the main body and the power supply unit in the original way.
(7)
Start the power supply through the terminals L and N of this instrument.