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DC Resistance Meters : 2840 Series

DC Resistance Meters : 2840 Series
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Data Sheet DC Resistance Meters 2840 Series Touch screen to zoom, select, and enter values functions: correction (TC) and conversion (∆t). The TC function corrects for ambient temperature changes that cause different resistance measurements of the same component. The temperature conversion (∆t) function can be used to evaluate a coil’s resistance before and after operation to calculate a temperature change. These additional features make the 2841 ideal for evaluating coils, motor windings, transformers, actuators and conductive materials. The 2840 Series DC resistance meters feature high accuracy and resolution measurements in the milliohm range. Both meters are ideally suited for measuring contact resistance of relays, switches, and PCB traces, typically outside the resistance range of multimeters. The vivid 4.3-inch TFT LCD color touch screen and keypad provide intuitive operation. The 2841 model adds extended range, accuracy, temperature measurement and functions. Measure low resistivity materials with offset voltage compensation to reduce the influence of thermal EMF. Cable error detection displays a message when one of the terminals is open, which helps identify defective test leads or poor contact that can cause unreliable measurements. Both meters feature low power resistance testing (LPR) modes and variable measurement speeds that are suited for a wide range of applications. The handler interface with high-speed measurement capabilities enable the 2840 Series to evaluate a large quantity of components and be integrated into an automated test system. The 2841 includes two temperature compensation color touch screen Kelvin test leads included measurement with correction* power resistance mode to protect DUT measurement speed for fast readout or better accuracy n Fast measurement speed up to 20 ms/reading to increase manufacturing throughput n Offset comparator function to sort components Display Range with statistical measurement Basic Accuracy Measurement Resolution Displayed Digits Resistance Measurement Ranges Temperature Compensation Number of Results Bins Technical data subject to change © B&K Precision Corp. 2017 power line filter delay interface for easy integration with a component handler n Standard

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DC Resistance Meters 2840 Series Front panel USB host port Menu function keys Touch screen Input terminals Kelvin test leads (Included with both models) Power On/Off Navigation keys Intuitive user interface The touch screen and keys both provide a convenient interface for setting parameters quickly and precisely. Both models also support one touch zoom to enhance the readability of displayed measurements. Rear panel Handler interface Chassis ground AC line input with fuse holder Temperature probe (Included with model 2841 only) Temperature probe input Model 2841 Handler interface 2

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DC Resistance Meters 2840 Series Powerful features Bin sorting function Applications Component testing Quickly sort components using the 10 bins of the 2841 or 3 bins of the 2840. The results can be displayed on the screen or output via the handler interface. High and low limits for each bin can be set up in absolute or tolerance mode. Temperature correction Measure the resistance of motor and transformer windings, relay and switch contacts, and other conductive materials and components. 4-wire Kelvin test leads included with both models. Circuit board testing The 2841 can compensate for...

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DC Resistance Meters 2840 Series Specifications Specifications are valid after temperature stabilization period of 15 minutes over an ambient temperature range of 23 °C ± 5 °C. Resistance Measurements Model 2840 Resistance Range Maximum Open Terminal Voltage Accuracy = (measurement value x rdg) + (least significant digit) 1 - Test speed set to Slow2 Maximum Open Terminal Voltage Accuracy = (measurement value x rdg%) + (resistance range x FS%) 2 3 - Current for the 200 mΩ range can be selected in the measurement setup menu. - Measurement display is 5 1/2 digits for ranges 20 mΩ to 20 kΩ, 5...

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DC Resistance Meters 2840 Series Measurement Function FAST Resistance Measurement Time (typical)1 Temperature Measurement Time Measuring Terminals Range Mode Trigger Mode Internal, Manual, External, Bus Apply a multiplier (m) and offset (b) to the measurement (R). (2841 model only) Ranges 20 Ω, 200 Ω, 2 kΩ, maximum open terminal voltage: 60 mV Statistical Measurement Function AVG, MAX, MIN, OSD (Overall standard deviation), SSD (Sample standard deviation), Process capacity index (Cp, Cpk) Comparator (bin sorting) Function Signal output Comparator Beep mode Limit setup mode Absolute value...

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