28
Power Quality Analyzer Model 3945
4.1.6 Current
Sensors
• Highlight CURRENT SENSORS with the
buttons, then press the
button.
The following screen will appear:
MN clamp
C clamp
AmpFLEX
PAC clamp
Adapter
200A
1000 / 5A
07/25/02 10:26
100%
1
2
3
Figure 4-4
Current transducer ratio
•
moves the cursor left or right to select which digit will be edited
•
increases or decreases the value at the highlighted position
Secondary current value
Nominal value of primary current from 5 to 2999A
• Choose the sensor type with the
buttons.
- The MN Clamp also requires a range selection to match your probe. The
range choices are 200, 100 and 5 Amps. The 200 Amp Range is used
for the MN93 Probe and the 100 or 5 Amp Range is used for the MN193
Probe.
- To select the proper range fi rst ensure that the MN Probe choice is high-
lighted using the
buttons.
- Next press the
button to highlight the range, then press either of the
buttons to select the desired measurement range of 200, 100 or 5 Amps. If
the 5 Amp range is selected, a choice for programming the ratio is offered.
- To change the ratio, press the
button to highlight the secondary value.
Pressing either of the
buttons will toggle this value to either 1 or 5.
- After making this selection, press the
button to adjust the primary value.
Each press of the
buttons will move the highlight one digit to the left
or right, accordingly. Use the
buttons to change each digit posistion as
desired. The primary range can be set between 1 and 2999.
