Measurement Line Power Source; Battery Power Source - Fluke 1742 User Manual

1742/1746/1748
Users Manual

Measurement Line Power Source

1. Make sure the mains adapter MA-C8 is disconnected from the
power supply input of the Logger.
2. Connect the voltage test lead 3-phase+N to the voltage
measurement inputs. See Table 4.
On single phase systems use the red and black test leads.
3. Use the short test leads (see Figure 16) to connect the power
supply inputs with the voltage measurement inputs.
Measurements with neutral voltage (see Figure 6):
-
Connect A/L1 on with one input of the power supply using the
red cable.
-
Connect N with the second input of the power supply using the
black cable.
Figure 6. Line Power with Neutral Voltage
4. Connect the voltage inputs to the test points.
The Logger automatically turns on and is ready to use in
<30 seconds.
Measurements without neutral voltage (see Figure 7):
-
Connect A/L1 with one input of the power supply using the red
cable.
-
Connect B/L2 with the second input of the power supply using
the black cable.
12
Note
Figure 7. Line Power without Neutral Voltage
5. Connect the voltage inputs to the test points.
The Logger automatically turns on and is ready to use in
<30 seconds.
W Caution
To prevent damage to the Product, make sure the
measured voltage does not exceed the input rating of
the power supply.
XW Warning
To prevent injury, do not touch the metal parts of one
test lead when the other is still connected to hazardous
voltage.

Battery Power Source

The Logger uses an internal rechargeable Lithium-ion battery. The
battery automatically charges when the Logger is connected to mains
power. Fully charge the battery before first use. Afterwards, charge the
battery when the Start/Stop LED or the battery status in the remote
control software indicates that the power is low.
The Logger continues to charge when turned off and
connected to mains power.
Note