29
Supplying Power
Connecting to an external DC power supply
Be sure to read “Handling of the cables” (p. 10) before connecting the power
supply.
When connecting to an external DC power supply, make sure that the supply has the
correct rating and uses a compatible connector.
When power is supplied from an external DC supply, that power supply will receive
priority and the unit will operate on power from the external DC power supply even if
batteries have been installed.
Connection Example
Display unit
When using an external DC power supply
(other than the optional AC adapter), be sure
to use a power supply connector that qualifies
as JEITA RC5320A Classification 3
(EIAJ RC5320A TYPE 3) (grip portion
external diameter not more than
φ
10 mm).
Measurement
circuitry
Measuring system
Power
supply
Output
The unit must have an exclusive power supply – the optional AC adapter, or an
isolated DC power supply satisfying the power supply specifications – that is used
for the unit alone. If the power source is shared with the measurement circuitry, the
zero-point for output values will shift when the load on the measurement circuitry
fluctuates, making accurate measurement impossible.
10
9
8
7
6
5
4
3
2
1
Appx.
Ind.
22
Содержание CM7290
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