Trek Model 152-1 Surface/Volume Resistance Meter The Trek Model 152-1 Surface/Volume Resistance Meter is designed to precisely measure surface or volume resistance on a wide variety of conductive, dissipative, and insulative materials. It features exceptional measurement accuracy and wide measurement ranges. When used with Trek’s uniquelydesigned 152P-CR-1 concentric ring probe (shown to left), the instrument provides consistent ease of operation even at very high resistance values. The Model 152-1 is lightweight, portable and operable via batteries or an AC line power source with battery eliminator. Key Specifications ! Measurement Range: ! Measurement Accuracy (of reading) at 25° ±10° C and 20% to 70% RH: – Point to Point Probe (152BP-5P): – Concentric Ring Probe (152-CR-1): – Two Point Resistance Probe (152P-2P): ! Probe Electrode Test Voltage: ! Test Limit Current: 103 to 1012 Ω range, ±5% 1013 Ω range, ±8% 103 to 1013 Ω range, ±5% 103 to 1011 Ω range, ±5% User selectable, 10 V or 100 V ±2% Limited to less than 13 mA in 10 V range and 1.7 mA in 100 V range Typical Applications Include ! Measuring surface or volume resistance on materials · Conductive, dissipative, insulative ! Measuring in accordance with ANSI/ESD Standards for · Garments (STM2.1) · Work surfaces (S4.1) · Flooring (S7.1) · Footwear (STM9.1) · Planar materials (STM11.11) · Volume resistance (STM11.12 and IEC 61340-2-3) · Seating (STM12.1) · Two point resistance measurements (STM11.13) · Floor materials/footwear (STM97.1) Model 152AP-3 mm x 25.4 mm Miniature Resistance Probes Model 152P-2P Two Point Resistance Probe Model 152BP-5P Point-to-Point Probes Complies to ANSI/ESD Association Standards Concentric ring probe pre-amplifier eliminates interference and enables reliable operation at high resistance values Exceptional accuracy, stability and repeatability Wide measurement range (103 to 1013 Ω) Elastomer electrodes for excellent surface contact Optional accessories include a Walking Test Adapter and Test Plate set NIST-traceable Certificate of Calibration provided with each unit compliant TREK, INC. • 190 Walnut Street • Lockport, NY 14094 • USA • 800-FOR TREK 716-438-7555 • 716-201-1804 (fax

Resistivity Measurement Accuracy (of the reading) at 25 °C and 20% to 70% RH Probe Electrode Test Voltage Test Current Limit Resistance X Factor 10 = Resistivity Point-to-point 5 lb probe (152BP-5P) 103 to 1012 Q range, ±5% 1013 Q range, ±8% Concentric Ring Probe (152P-CR) 103 to 1012 Q range, ±5% 1013 Q range, ±8% Two point resistance probe (152P-2P) 103 to 1011 Q range, ±5% 1012 to 1013 Q range, ±10% User selectable 10 V or 100 V, ±2% Limited to less than 13 mA in the 10 V range and less than 1.7 mA in the 100 V range Test Probes / Accessories (cont.) Low Battery Indicator Test Voltage Range Indicator Automatic...