SL-030 Surface Resistance Meter

SL-030 is an ultra wide-range, battery operated, portable instrument for measuring Surface Resistivity of virtually any flat surface conforming to ASTM D-257 standard by using recommended parallel bar sensing probe. In the circuit industry, products such as packaging materials, ESD shielding bags, work bench surfaces, static dissipative table and floor mats, conveyor belts, etc, have resistance values which need to conform to stringent specifications, Moreover, these values are expected to fall with in specified limits. The Surface Resistivity Meter can play a vital role in monitoring and checking the resistivity characteristic of the above items.

 

Specification:

Operating Temperature	0℃-50℃
Relative Humidity	0%-80% RH
Test Voltage	9 volts
Size	137(L)×76(W)×30(D)mm
Weight	120g
Accuracy	± 1/2 decade
Repeatability	± 5%
Measurement Range	103-1012 ohms per square
Resolution	One decade
Indication	Visual by LED’S
Test Actuation	ON / OFF Switch
Power Supply	9 volt DC Battery
Calibration	Recommended every 12 months
Warranty	12 months
Accessories include	1m Grounding Cord & Carrying Leather Bag

 

It also has unique additional feature of surface-to-ground measurement capability wherein the resistivity differential between any surface and any chosen ground can be determined.

 

The surface resistivity is conveniently indicated by a row of LED’s covering a total of 10 decades from 103-1012 ohms per square.

 

 

Instruction to use:

Place the meter on the material to be tested and push the RED button in the middle of the unit. The unit measures the resistance between two electrodes on the back of the meter to determine surface resistivity, The LED that is lit, will indicate the surface resistivity in ohms per square.

 

Readings in Conductive Band

103= 1K Ohm

104= 10K Ohms

105= 100K Ohms

 

Readings in Insulating Band

1012= 1,000,000 Meg Ohms or greater

 

Readings in Conductive Band

106= 1 Meg Ohms

107= 10 Meg Ohms

108= 100 Meg Ohms

                         109= 1,000 Meg Ohms

                         1010= 10,000 Meg Ohms

                         1011= 100,000 Meg Ohms

 

Resistance to ground measurement

Plug the stereo plug of the ground lead        into the jack marked GROUND on the side of the meter. Connect the alligator clip to a suitable ground point for the material to the tested. For table mats, this will be generally be the snap for the mats ground cord. Place the meter in the desired location and push the RED test button. The unit will measure the resistance from the electrode on the right to the ground point. RTG values are measured in Ohms.