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Solutions Strategies and Innovations
Static Solutions Inc.
3
Static Solutions Inc. - Ohm - Stat RT - 1000 Information
Concentric Ring Probe Resistivity Method
(Optional test probe accessory)
Insert both coil cords using the monaural plugs into the 3.5
mm meter jacks on the top right of the RT-1000 meter . Attach
the banana plug coil cord terminations into the concentric
ring probe. Place the probe onto the surface to be tested.
Press the test button and wait until the values appear in
approximately 15-20 seconds. The correct temperature,
humidity, and resistivity will be displayed on the LCD screen.
The resistivity value displayed MUST be multiplied by a
factor of 10 to achieve the correct test value. These values
will read in ohms/sq. e.g. 3.5 X10
4
ohms/sq. (displayed
value.) .The actual resistivity value will be 3.5 X 10
5
ohms/
sq.
Surface Resistance Measurements (RTT)
This procedure which complies with EOS/ESD-S4.1 measures
resistance between two points independent of a groundable
point. Procedures vary regarding sample preparation, probe
preparation, and spacing of the 5 pound probes.
A.
Connect the monaural plug ends of the test leads into
the 3.5 mm jacks of the meter. Connect the banana plug
ends of the test coil cords into the 5 pound, 2.5 inch
diameter probes.
B.
Place both probes on the material according to the ANSI
EOS/ESD test procedures.
C.
Select the correct test voltage position. Over 1 X 10
6
ohms use 100 volts. Under 1 X 10
6
ohms use 10 volts.
The meter will inform you on the LCD for incorrect
voltage positions.
A.
Press and hold the test button until power is applied to
the meter and a resistance, humidity, temperature value
is displayed on the LCD screen. This may take 20-30
seconds. When the button is released the displayed value
will remain on the screen automatically for 20-30 seconds
with no battery drain. At high resistance values and to
minimize line current interference the use of the enclosed
shield ground cord is recommended.
Figure 3
- Concentric Ring Probe
Figure 4
- Ohm - Stat RT-1000 Point to Point
(RTT)
test.