34
Power Quality Analyzer PowerPad
®
IV Model 8345
AmpFlex
®
193
Choice of range:
■
0.10 A to 100.0 A
■
1.0 A to 1000 A
■
10 A to 10.00 kA
MiniFlex
®
MA194-24-BK
Choice of range:
■
0.10 A to 100.0 A
■
1.0 A to 1000 A
■
10 A to 10.00 kA
Current ratios are used when the currents are too high for the instrument and
current transformers are used to lower them. The ratio allows you display the
true current and use it in the calculations.
4A:
every channel has the same ratio.
4A+AN:
every channel has the same ratio; the neutral has a different ratio.
A1+A2+A3+AN:
every channel has a different ratio.
For the ratio, the primary current cannot be less than the secondary current.
When 2 current sensors of the same type and same ratio are connected in
a three-phase, three-wire setup, the instrument will simulate the third sensor
and give it the same specifications as the other sensors. The connection
configuration must indicate which sensors will be present. Then, the instrument
will show the third sensor as simulated.
This menu will only appear for the sensors referenced in the table above.
3.4.3.3 Reversing the Current
If your current sensors are connected and you notice that one or more sensors
are not correctly oriented during the measurement, you can easily reverse them
without physically reorienting them.
Press
to reverse a current sensor
3.4.4 Trend Mode
The Trend mode
is used to re
cord different quantities for a specified duration.
Every quantity that the instrument measures can be recorded.
Configuration in
progress
The quantities to
record are on 3 pages
Choose the quantities
to record
There are 4 possible
programmable
configurations,
,
,
and
To change from one
to the other, use the
or
key
Select or deselect all
the page’s parameters
