Surface Resistance Meters - Measure Resistance on a wide variety of materials.

Model Number	Description	Specs.	Manual
SRM310 - Pocket Size Surface Resistance Meter	Pocket Sized Surface Resistance Meter The SRM310 is a portable, battery-operated survey instrument for evaluating the resistive properties of surfaces such as static dissipative packaging, flooring, or work surfaces over the range of 10^3 to 10^12 ohms or ohms per square.The pocket size SRM 310 uses parallel electrodes on the back of the meter and it also accepts external electrodes (SR0050) for point-to-point (RTT) and resistance-to-ground (RTG) measurements. Perfect for periodic verification, factory audits or test lab evaluation of a product.
SRM310	Learn more about the SRM310 Surface Resistance Meter
SRM500k - Surface Resistance Kit with carrying case - Tests resistance to ground, point to point, Humidity and Temperature	Surface Resistance Kit A digital surface resistance test kit that accurately measures point-to-point (RTT) and point-to-ground resistance (RTG). Suitable for factory audits and test lab evaluations. Also measures ambient temperature and humidity. Comes with 5lb probes and carrying case Measures ambient temperature and humidity
SRM500K	Learn more about the SRM500K Surface Resistance Meter
SR0050 - Surface Resistance Probes	Surface Resistance Probes Designed to test point-to-point (RTT) and point-to-ground resistance (RTG) in accordance with ESD Association Standards. The probe can be used to make measurements on floors, mats, workbenches, garments, seating or any other flat surface where the resistance between two points is required.
SR0055

Understanding Surface Resistivity

For ESD purposes, materials are classified by their resistance to the movement of electricity. The following ranges and definitions are found in ESD Association or EIA standards publications:

Conductive materials: With a low electrical resistance, electrons flow easily across the surface or through the bulk of these materials. Charges go to ground or to another con-ductive object that the material contacts or comes close to. Conductive materials have a surface resistivity less than 1 x 10^5 Ω/sq or a volume resistivity less than 1 x 10^4 Ω-cm.

Dissipative materials: For these materials, the charges flow to ground more slowly and in a somewhat more con-trolled manner than with conductive materials. Dissipative materials have a surface resistivity equal to or greater than 1 x 105 Ω/sq but less than 1 x 10^12 Ω/sq or a volume resistivity equal to or greater than 1 x 10^4 Ω-cm but less than 1 x 10^11 Ω-cm.2

Insulative materials: Insulative materials prevent or limit the flow of electrons across their surface or through their volume. Insulative materials have a high electrical resistance and are difficult to ground. Static charges remain in place on these materials for a very long time. Insulative materials are defined as those having a surface resistivity of at least 1 x 1012 Ω/sq or a volume resistivity of at least 1 x 1011 Ω-cm.

Contact Transforming Technologies to order Surface Resistance Meters.

Transforming Technologies, LLC
3719 King Rd.
Toledo, OH 43617
(419)841-9552
(419)841-3241 fax