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Trek＇s Surface Resistance Meter （Model 152） is a lightweight, portable unit designed to precisely measure surface resistance on a wide variety of of conductive, dissipative, ａnd insulative materials. It features exceptional measurement accuracy, wide measurement ranges, ａnd multiple probe configuration options.
Model 152 SURFACE resistance METER
The Trek Model 152 Surface Resistance Meter is designed to measure surface resistance on a wide varieties of conductive, dissipative, ａnd insulative materials. The Model 152 employs a measurement technique which conforms to several ANSI/ESD Association standards for measuring surface resistance ａnd surface resistivity including ANSI/ESD-STM2.1 for garments, STM4.1 for work surfaces, STM7.1 for flooring, STM11.11 for planar materials, ａnd STM 11.13 for two point measurement. A variety of measuring probe electrode configurations are available for making surface resistance or surface resistivity measurements.
The Model 152 features exceptional measurement accuracy ａnd wide measurement ranges of 10 E3 to 10 E13 ohms using point-to-point probes or the two-point resistance probe for small surface measurement, ａnd 10 E4 to 10 E14 ohms/square using the concentric ring probe. Measured resistance values are clearly displayed on a high-contrast LCD display using scientific notation.
The electrode test voltage for the measurement probe（s） is switch selectable for 10 V or 100 V operation to conform to the individual requirements of the ESD Association standards ａnd testing conditions. The selected test voltage is indicated on the LCD display.
The exclusive Trek Model 152P-CR concentric ring measuring probe contains a preamplifier which eliminates the usual noise, stray pickup, ａnd long settling time associated with other type probe designs, therefore providing ease of operation even at very high resistance values. The Model 152 will detect the connection of the active concentric ring probe, automatically adjust the measuring range, ａnd indicate values in ohms/square on the LCD display.
The Model 152 is light-weight ａnd portable, ａnd can be operated from internal batteries or connected to an AC line power source using a battery eliminator.
· Meter Measurement Capability
10 E3 to 10 E13 ohms.
（extends to 10E14 ohms using the Concentric Ring probe）.
10 E3 to 10 E13 ohms.
（extends to 10E14 ohms using the Concentric Ring probe）.
· Surface Resistivity / Surface Resistance Probe Measurement Ranges
· Concentric Ring Probe
10 E4 to 10 E14 ohms/square.
10 E4 to 10 E14 ohms/square.
· Point-to-Point Probes
10 E3 to 10 E13 ohms.
10 E3 to 10 E13 ohms.
· Two-Point Resistance Probe
10 E3 to 10 E13 ohms.
10 E3 to 10 E13 ohms.
· Measurement Accuracy （of reading）
At 25 °C ±10 °C at 20% to 70% RH:
At 25 °C ±10 °C at 20% to 70% RH:
· Concentric Ring Probe （152P-CR）
10 E4 to 10 E13 ohms/square,
±5% of LCD reading,
10 E14 ohms/square,
±8% of LCD reading.
10 E4 to 10 E13 ohms/square,
±5% of LCD reading,
10 E14 ohms/square,
±8% of LCD reading.
· Point-to-Point Probes （152AP-5P）
10 E3 to 10 E12 ohm range,
±5% of LCD reading,
10 E13 ohm range,
±8% of LCD reading.
10 E3 to 10 E12 ohm range,
±5% of LCD reading,
10 E13 ohm range,
±8% of LCD reading.
· Two-Point Resistance Probe （152P-2P）
10 E3 to 10 E11 ohm range,
±5% of LCD reading,
10 E12 to 10 E13 ohm range,
±10% of LCD reading.
10 E3 to 10 E11 ohm range,
±5% of LCD reading,
10 E12 to 10 E13 ohm range,
±10% of LCD reading.
· Meter Probe Electrode Test Voltage
User selectable for 10 V or 100 V, ±2%.
User selectable for 10 V or 100 V, ±2%.
· Test Current Limit
Limited to less than 13 mA in the 10 V range ａnd less than 1.7 mA in the 100 V range.
Limited to less than 13 mA in the 10 V range ａnd less than 1.7 mA in the 100 V range.
· Test Probes （purchased separately）
· A） Trek Model 152AP-5P 2.27 kg. （5 lb.） test probes （set of two probes） are available for performing resistance measurements per ANSI/ESD-STM4.1 standards （point-to-point or surface resistance measurements）.
· B） Trek Model 152P-CR 2.27 kg.（5 lb.） concentric ring test probe contains a preamplifier for performing surface resistance/surface resistivity measurements per ANSI/ESD-STM11-11 standards.
The exclusive Trek Model 152P-CR concentric ring measuring probe contains a pre-amplifier which eliminates the usual noise, stray pick-up, ａnd long settling time associated with other type probe designs, therefore providing ease of operation even at very high resistance values.
The exclusive Trek Model 152P-CR concentric ring measuring probe contains a pre-amplifier which eliminates the usual noise, stray pick-up, ａnd long settling time associated with other type probe designs, therefore providing ease of operation even at very high resistance values.
C） Trek Model 152P-2P probe performs resistivity measurements on surface areas too small to be measured using conventional probe
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