5
Ope r a t ion : I n t er n a l Ele ct r ode s
The parallel resist iv it y probe m et hod
com plies w it h EOS/ ESD- S11.11. I t is
used t o give fast elect rical resist iv it y
m easurem ent s on flat hom ogeneous
m at erials. I t m ay be used on m ult ilay-
ered m at erials, but t his should be not ed
along w it h t he t em perat ure and hum idit y
value on t he dat a report . When t he
m easurem ent is t aken bet ween t he
tester’s two mesh rails under the tester, the tester will in-
dicat e t he surface resist iv it y of t he m at er ial being t est ed.
1. Pr ior t est ing, m ake cert ain t hat surfaces t o be
t est ed are clean and free of cont am inant s.
2. Allow t he m et er t o equilibr at e t o t he at m osphere
t he m et er is t o be used in. I t m ay t ake a half hour
for t he m et er t o adj ust t o environm ent condit ions.
3. Place t he m et er on t he desired surface t o be t est ed
and press and hold t he red t est but t on.
4. When using t he built -
in electrodes, the meter’s test
values for surface resist iv it y are in ohm s per square
( alt hough t hey are displayed in ohm s) .
5. The t est value is indicat ed on t he LED display . A
decade will br ight en t o t he according t est v alue.
6.
Colors signify the test value’s function (see page 3).
Ope r a t ion : Ex t e r n al Ele ct r ode s
By connect ing t he opt ional surface resis-
tance probes to the SRM320 meter, it’s
possible t o m easure ot her form s of re-
sist ance such as Point t o Point ( RTT) Re-
sist ance, Surface t o Ground ( RTG) , and
Volum e Resist ance. Using t hese probes
w ill allow com pliancy w it h var ious st an-