IM-P337- 6 9 EMM Issue 2
22
Caution!
Only one power source can be applied at any one time. Applying both the 4-20 mA loop
and a external 24 Vdc source can cause irretrievable damage to the electronics.
Caution!
The Earth wire of the unit has to be connected to a clean ear thing point in order to reduce
interference from the environment the MVT10 is operating in.
Caution!
The wire insulation temperature rating must meet or exceed 85 °C (185 °F).
Caution!
All cables must be screened.
Caution!
Only connect one power source at a time.
Caution!
For 24 Vdc power supply. This must be approved to local legislation.
Fuse:
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The MVT10 shall be equipped with an external fuse. See Section 3.3 for details.
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Make sure the correct type of fuse is used before powering up the unit.
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Make sure correct fuse rating type is used when replacing the fuse.
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If the fuse blows, make sure the problem is understood and corrected before replacing the
fuse and powering up the unit.
5.1 General wiring
Warning!
To avoid potential electric shock, follow National Electric Code safety practices or your
local code when wiring this unit to a power source and to peripheral devices. Failure to
do so could result in injury or death. All wiring procedures must be performed with the
power off.
Warning!
All wiring procedures must be performed with the power off.
Use only the connectors supplied with the product , or spares obtained from Spira x Sarco.
Use of different connectors may compromise product safety and approvals.
Ensure there is no condensation wit hin the unit before installing and connecting the power.
5. Electrical installation
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