SCS 770007, Concentric Ring Probe
SCS 770007 Concentric Ring Probe for Surface and Volume Resistance Testing of Planar Materials
The SCS 770007 is a concentric ring probe for measuring surface resistance per ANSI/ESD STM11.11 and volume resistance per ANSI/ESD STM11.12 of planar materials including ESD packaging, static shielding bags, and other flat ESD-sensitive materials. Used in conjunction with a compatible SCS surface resistance meter, the 770007 provides the standardized electrode geometry required by ANSI/ESD STM11.11 for surface resistance measurements of planar materials — the test method referenced in ESD packaging standard ANSI/ESD S541. The spring-loaded, self-aligning center electrode maintains consistent contact force and alignment between the probe’s conductive rings and the material under test, ensuring repeatable measurements across multiple test points and operators. Compatible with the SCS 770760 Resistance Pro Meter Kit, SCS 701 Analog Surface Resistance Megohmmeter Kit, and SCS SRMETER2 Surface Resistance Meter. Made in the United Kingdom. Sold individually.
Sold individually (probe only — resistance meter sold separately).
Specifications
| SKU | 770007 |
|---|---|
| Brand | SCS (Static Control Solutions) |
| Instrument Type | Concentric ring probe |
| Test Standards | ANSI/ESD STM11.11 (surface resistance), ANSI/ESD STM11.12 (volume resistance) |
| Applicable Standard | ANSI/ESD S541 (ESD packaging surface resistance) |
| Electrode Design | Spring-loaded, self-aligning center electrode |
| Compatible Meters | SCS 770760 Resistance Pro Meter Kit, SCS 701 Analog Megohmmeter Kit, SCS SRMETER2 |
| Application | Surface and volume resistance measurement of planar materials: ESD packaging, static shielding bags, films, laminates |
| Country of Manufacture | United Kingdom |
| Quantity | Sold individually (meter not included) |
Frequently Asked Questions
What is a concentric ring probe used for in ESD testing?
A concentric ring probe provides the standardized electrode geometry required by ANSI/ESD STM11.11 for surface resistance measurements of planar materials. The probe consists of two concentric conductive rings — an inner electrode and an outer ring electrode — that contact the material surface simultaneously. When connected to a resistance meter, the probe measures the resistance of the material between the two rings, which is used to classify the material as conductive (<10⁵ ohms), dissipative (10⁵–10₁¹ ohms), or insulative (>10₁¹ ohms) per ESD standards.
What is the difference between surface resistance (STM11.11) and volume resistance (STM11.12)?
Surface resistance (ANSI/ESD STM11.11) measures the resistance of current flowing across the surface of a material between two electrodes — the measurement made by the concentric ring probe alone. Volume resistance (ANSI/ESD STM11.12) measures the resistance of current flowing through the bulk of the material between the concentric ring probe and a flat conductive metal plate placed on the opposite side of the material. The SCS 770007 supports both measurements; a flat conductive metal plate (not included) is required for volume resistance testing.
Which SCS resistance meters are compatible with the SCS 770007?
The SCS 770007 is compatible with the SCS 770760 Resistance Pro Meter Kit, the SCS 701 Analog Surface Resistance Megohmmeter Kit, and the SCS SRMETER2 Surface Resistance Meter. Contact MTE Solutions to confirm compatibility with other resistance meters before purchase.
Is the SCS 770007 required for ANSI/ESD S541 packaging compliance testing?
ANSI/ESD S541 references ANSI/ESD STM11.11 as the test method for surface resistance of ESD packaging materials. STM11.11 specifies the concentric ring electrode geometry, making a concentric ring probe such as the SCS 770007 the required fixture for compliant surface resistance measurements of ESD packaging per S541. Using a non-standard electrode geometry will not produce STM11.11-compliant results.
