Fluke C9970 User Manual page 12

C9970
Users Guide
Avoid unsecured objects, dangling wires, etc., which can move if
probed. While you try to get an accurate reading through the
corrosion, the object may suddenly swing around and hit you.
4. To avoid false indications due to static electrical discharge, maintain contact
with the Product and the object as you release the trigger and push and hold
the trigger again.
5. Continue to hold down the trigger as you remove the Product from the
object, and observe the LEDs:
The green LED emits light to indicate a safe condition.

The red LED flashes to indicate the presence of dangerous voltages.

Move away from the object and refer to the safety procedures of your
company.
DC Hazardous Voltage Test
The Product indicates the presence of dc voltages between 6 V dc and 1000 V dc.
To test for hazardous dc voltage:
1. Do a self check test. See Self Check Test.
2. Do an ac hazardous voltage test. If the ac hazardous voltage test indicates
no hazardous voltage, continue with the test.
3. Test the continuity of an insulated grounding cord, such as the temporary
bond, that has a clamp on each end.
a. Connect the clamp on one end of the cord to the tip of the probe on the
Product. To use the Bond as the grounding cord, connect the large clip to
the tip of the probe.
b. Push and hold the trigger on the Product.
c. Touch the clamp on the other end of the cord to the check contact on the
Product. If the red LED flashes, you can use the cord in the next step.
This test verifies whether this ground cord can be used with the
Product. The test does not verify the cord's current-handling ability
for use as a bond.
4. Connect one clamp of the insulated grounding cord to the ground terminal of
the Product (see Figure 1) and the other clamp to a known earth ground. Do
not loosen the ground terminal on the Product.
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 Warning
Note