Unit 17. Millbrook Business Park, Sybron Way • Crowborough, East Sussex TN6 3JZ United Kingdom
Phone: 00 44 (0) 1892-665313 • Internet:
Charleswater.co.uk
PPE-5105.E
Page 2 of 4
© 2013 Charleswater
E. Low Battery LED:
LED illuminates when the battery
needs to be replaced.
F. 6 Foot Coiled Cord:
Insulation black colour PVC.
G. Banana Plug:
Industrial Standard .175" (4.4 mm) Banana
Plug, fits banana jack ≥ .157".
Operation
USING THE TESTER
1. Use the slide switch to select a test range.
2. Connect the coiled cord’s banana plug end to known
ground. Use adapters where needed. NOTE: The
Charleswater Low Resistance Tester may be used with
an outlet polarity checker such as the Charleswater
99125
or
99126
to determine a known ground.
3. Connect or touch the tester end to a banana jack,
common ground point, earth bonding point or other
equipment that is being tested for resistance to ground.
4. Press and hold the test button.
5. An audio and visual indication will activate for a PASS
condition.
6. A FAIL condition is indicated when the buzzer does not
sound and the PASS LED does not illuminate.
Example of Test Range Uses
<1 OHM Range
- ESD Technical element Grounding Conductors:
Banana Jacks, Common Ground Points, Earth Bonding
Points, Grounding Blocks, Mat Ground Cords
ANSI/ESD S6.1 Grounding, sections 6.4 Technical
Elements,
6.4.1, 6.4.2 and 6.4.3
- New AC Powered Hand Tools
ESD Handbook ESD TR20.20 section 5.5.2.2 Electrical
Hand Tools
<2 OHM
- Soldering Irons
ESD Handbook ESD TR20.20 section 5.5.2.2 Electrical
Hand Tools
- Other AC Powered Hand Tools
ESD Handbook ESD TR20.20 section 5.5.2.2 Electrical
Hand Tools
<20 OHM
- Soldering iron compliance verification
ESD Handbook ESD TR20.20 section 5.5.2.2 Electrical
Hand Tools
- Functional auxiliary grounds (ground rods)
ANSI/ESD S20.20*
* ANSI/ESD S20.20 requires <25 ohms from the
Auxiliary Ground to the Equipment Grounding Conductor.
Charleswater’s Low Resistance Tester only tests to <20
ohms. In cases of a no pass result with the Low Resistance
Tester when testing an Auxiliary Functional Ground, an
Ohmmeter should used to determine the actual resistance
from the Auxiliary Functional Ground to Protective Earth
Ground
Figure 3. Testing a soldering iron with the 99036 tester
Figure 4. Testing functional auxiliary ground with the
99036 tester
