The Desco 19640 is a surface resistance checker with a battery type of 9 v alkaline battery. The Desco 19640 Surface Resistance Checker is a portable battery powered checker fitted with built-in parallel electrodes that allow for tests of material surface resistance. This checker is designed for quick checks of surface resistance for ESD control applications in electronics manufacturing or handling environment. The 19640 is equipped with an automatic test voltage selector. The test voltage will switch from 10V to 100V should the measured resistance exceed 1 x 105 ohms. Two banana jacks and an electrode toggle switch allow for the connection of two external 5 pound electrodes (sold separately) that measure surface resistance point to point (Rtt).

Desco 19640 Surface Resistance Checker Highlights:

• Economical compliance verification Surface Resistance Checker
• Used for determining if a surface is dissipative, conductive, or insulative
• Color-coded LEDs quickly provides exponent range for quick checks of EPA ESD control items
• Automatic test range voltage selection per compliance verification ESD TR53
• Starts tests at 10 volts and automatically switches to 100 volts if the measurement is over 10E5 ohms
• Once reading is finalized, the surface resistance exponent will remain displayed as long as test button is depressed
• Provides exponent range of resistance measurement which is often all that is required for determining if a material is intended for an ESD Protected Area
• Portable operation with 9V battery
• Flashing LED warns when battery is low
• Prevents operator from making bad measurements
• Use the same checker to indicate resistance point-to-point (Rtt) of larger surfaces (flooring, mats)
• NIST Calibrated

Desco 19640 Surface Resistance Checker Specs:

• Brand: Desco
• SKU: 19640
• Product Type: Resistance Checker
• Voltage Rating: 9V
• Power Source: Battery
• Test Point: Surface
• Accuracy: ±1/2 Decade
• Battery Type: 9 V Alkaline Battery
• Maximum Resistance: 1 x 10^5Ω
• Indicator Light (Yes/No): Yes
• Dimensions: 5.2 x 2.9 x 1.1in
• Height: 5.2in
• Width: 2.9in
• Depth: 1.1in
• Standards Met: ANSI, ESD S20.20
• Includes: 9 V Alkaline Battery, Calibration Certificate