291 ADVANCEDENERGY | Alldatasheet
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©2020 Advanced Energy Industries, Inc. The Monroe 291 is a portable, battery-operated survey instrument for evaluating the resistive properties of static control products such as static dissipative packaging, flooring, or work surfaces over the range of 10 to 10 ohms or ohms per square The Monroe 291 uses a parallel electrode configuration conforming to ASTM D-257. It also accepts external electrodes for point-to-point and resistance-to-ground measurements. A test lead is included for resistance-to-ground measurements. Simply place the Monroe 291 directly on the item to be measured. An easy-to-read, color-coded LED decade display quickly and clearly indicates the resistivity or resistance range. PRODUCT HIGHLIGHTS Twelve LED color-coded display to accurately and quickly show measured decade values Measures both resistivity and resistance-to-ground Ranges 10 thru 10 Easy-to-use Battery powered Pocket-sized convenience Inexpensive, reliable Range to 10 with LEDs for underrange and over-range Accuracy ±1/2 decade AT A GLANCE MONROE 291 Portable survey instrument for evaluating resistive properties of static control products such as static dissipative packaging, flooring, or work surfaces.
For international contact information, visit advancedenergy .com. sales.support@aei.com +1 970 221 0108 Specifications are subject to change without notice. Not responsible for errors or omissions. ©2020 Advanced Energy Industries, Inc. All rights reserved. Advanced Energy®, Monroe Electronics®, StatArc TM and AE® are U.S. trademarks of Advanced Energy Industries, Inc. TECHNICAL DATA Performance Specifications Range 10 to 10 with LEDs for underrange and over-range Accuracy ±1/2 decade Temperature 0 to 40°C (32 to 104°F) Humidity 10 to 75% RH Applied Voltage 10 volts @ 10 to 10 100 volts @ 10 to 10 Display Type Multi-colored LEDs (green-conductive, yellow-dissipative and red-insulative) Electrodes Parallel bar type (jacks for external connections) Mechanical Specifications Dimensions 6.5 x 13 x 3 cm (2.6 x 5 x 1.2 in) Weight 235 g (8.4 oz), including battery Battery Type 9 V, Eveready #522 or equivalent NEDA #1604A ENG-ESD-Monroe-291-235-01 03.20 EASY-TO-USE OPERATION To measure surface resistivity of a flat sample of material simply place the instrument on the material so that these rails are in contact with the material and press the TEST button. To make surface-to-ground or point-to-point measurements, make connections to one or both of the banana jacks on the end of the instrument. When a banana plug is inserted, the corresponding contact rail is disconnected. High Performance The Monroe 291 resistivity meter fills the void between lower performance, albeit slightly lower cost and high-end, more expensive test instruments. This pocket-sized meter has parallel metal contact rails and jacks for connections to external electrodes or ground. Using a single 9-volt alkaline battery, the unit automatically generates a test voltage of either 10v or 100v. You place the instrument on a flat surface (2 inches by 25/8 inches or larger) of material to be tested, press the button, and read the results from the multi-colored LED display. It comes with a carrying case, ground lead and calibration certificate. Measures surface resistivity of flat material samples – contact rails built into base of instrument Measures resistance – using external connections to banana jacks