ESD-PROTECT SR 800 User manual

Manual
ESD-PROTECT GmbH
Industriestraße 27 | 56276 Großmaischeid
www.esd-protect.de [e-mail]
Tel. [phone] Fax [phone] Seite 1
Stand: 24.04.23
EP0201009 – Surface Resistance Meter SR 800
Description
The surface tester is an ohmmeter with battery operation and built-in
strip electrodes. It is designed for quick measurement of surface
resistances to check ESD protection applications easily and reliably.
This meter is equipped with an automatic test voltage selector that
automatically switches the test voltage from 10V to 100V from a
resistance of 1 x 106 Ω. Two banana plugs and the switch for the
electrodes (internal/external) allow the connection of two external
electrodes (2.27kg) for point-to-point resistance measurements (Rp-p).
Scope of delivery
- Surface tester
- 9V battery
- Calibration certificate
Features & components
A Banana sockets: For connecting the external electrodes.
B Change-over switch: For use of the internal strip electrodes or the external
electrodes.
•Toggle switch left to "INTERNAL" for internal electrodes.
•Toggle switch right to "EXTERNAL" for external electrodes
C LEDs for displaying the measured value: Resistance is measured in ohms and
displayed as 10X ± 1/2 decade, where X is the range displayed on the tester.
D Battery monitor: As soon as this LED lights up, the battery should be replaced.
Please do not use the tester when this LED is lit.
E Test switch: Use this contact surface to perform a surface resistance
measurement. Press and hold the button until one of the resistance measurement
LEDs (C) lights up.
F Battery compartment: Remove the cover to access the 9V battery compartment.
G Parallel electrodes: Make sure to set the toggle switch (B) to “INTERNAL" if you
want to carry out a measurement with the parallel electrodes on the back of the
unit. Please do not damage the conductive sheathing of the electrodes.

Manual
ESD-PROTECT GmbH
Industriestraße 27 | 56276 Großmaischeid
www.esd-protect.de [e-mail]
Tel. [phone] Fax [phone] Seite 2
Stand: 24.04.23
EP0201009 – Surface Resistance Meter SR 800
Measurement with the integrated parallel electrodes
Surface measurement point to point (Rp-p)
-Do not clean the surface before testing.
-Remove all objects from the surface that could
interfere with the test.
-ESD-sensitive devices should also be removed.
-Place the surface tester on the most used surface.
(at least 5 cm from any edge, 8 cm from any grounding
point).
-Switch the electrode switch B to "INTERNAL" for the
internal electrodes.
-Press and hold test contact E until the measurement is
displayed.
-If the measurement is outside the permissible limits,
clean the surface and test again to see if the cause of
the error is a layer of dirt that may be insulating.
Using the external electrodes
General rule:
-Use both 2.27 kg electrodes for resistance
measurements point to point (Rp-p).
-Make sure that the object to be measured is
electrically insulated, as the surface tester
always measures the path of least resistance.
-Make sure that the test leads are as separated
as possible.
-Place the unit no closer than 5 cm from the edge of the surface to be measured and no closer than
8 cm from any earthing point.
-Place the 2.27 kg electrodes about 25 cm apart for point-to-point measurements (Rp-p) and about
90 cm apart for ground measurements.
-Preferred measurement points should be:
-Most frequently used parts of the surface, most worn areas, Centre of the surface, point furthest from
the grounding point.
-If the surface to be measured has sections (joints in floor tiles, seams in clothing), place the 2,27 kg
electrodes on different sections.

Manual
ESD-PROTECT GmbH
Industriestraße 27 | 56276 Großmaischeid
www.esd-protect.de [e-mail]
Tel. [phone] Fax [phone] Seite 3
Stand: 24.04.23
EP0201009 – Surface Resistance Meter SR 800
Spezifikationen
Accuracy
± ½ decade
Weight
0,2 kg
Dimensions
13 cm x 7 cm x 3 cm
Power Supply
9 V Alkaline battery
Maintenance and care
The area around the cable sockets at the top of the meter should be wiped with a clean cloth dampened with
alcohol to remove any skin, oils or dust that may affect the accuracy of high resistance measurements.
The frequency of cleaning depends on use; however, monthly cleaning would be recommended.
Clean the electrodes with a minimum 70% isopropanol alcohol-water solution. Make sure the electrodes are
dry before use. For compliance measurements, do not clean the surfaces to be measured. However, if the
measurements are outside the standards, clean the material surface and test again.
The surface resistance tester requires little maintenance and contains no user-serviceable parts. If your
instrument needs calibration, please contact us.