ETS-Lindgren HI-3702, User Manual

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Operation
2. Connect the fiber optic cables.
Connect the fiber optic cable to the HI-3702 and to the HI-4416 Digital
Readout/Control Unit. Follow the color coding on the fiber optic cable, the
HI-3702, and the HI-4416.
3. Power on the HI-3702.
Turn on the HI-3702. The HI-3702 is equipped with a locking lever on/off
switch. Pull the switch lever out before toggling it to the appropriate position.
4. Power on the HI-4416.
Turn on the HI-4416. See the HI-4416 manual for more complete operating
information.
5. Select the range.
Use the HI-4416 to select the range that is appropriate for the expected
current levels to be measured. To select auto range, scroll through the ranges
until Range A appears on the screen.
When auto range is enabled, the probe will scroll up to the next higher range
when the reading displayed exceeds full scale. The probe will scroll down to
the next lower range when the reading displayed is -14 dB (20%) of the full
scale reading for the current range. This will put the reading at approximately
2/3 of full scale of the next lower range. See the following Auto Range
Readings Table and Auto Range Flow Diagram .
Range -20dB of
full scale
Reading
after scroll
down
-14dB of
full scale;
scroll down
point
Full scale
scroll up
point
Reading
after scroll
up
Full scale
reading
1 1 mA 7.2 mA 10 mA 10 mA
2 3.16 mA 20 mA 7.2 mA 31.6 mA 10 mA 31.6 mA
3 10 mA 72 mA 20 mA 100 mA 31.6 mA 100 mA
4 31.6 mA 200 mA 72 mA 316 mA 100 mA 316 mA
5 100 mA 200 mA 316 mA 1000 mA