3M 2290 Operation Manual - Page 2

INTENDED USE The 3M Model 701 Megohmmeter is designed to measure the resistance of static control work surfaces and flooring. This is to be done in a manner as described in this operator's manual. Measurements described in this manual refer to the ESD Association Standards S4.1 (Worksurfaces-Resistive Characterization) and S7.1 (Floor Materials-Resistive Characterization of Materials). These standards are available from the ESD Association (315-339-6937). Refer to the operator's manual for complete use of this instrument. Use of other components may cause improper performance and or an unsafe condition. SAFETY SYMBOLS This marking adjacent to another marking or a terminal or operating device indicates that the operator must refer to an explanation in the Operating Instructions to avoid damage to the equipment and/or personal injury. WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It also may be used to alert against unsafe practices that may cause property damage. SAFETY INFORMATION The Operator's Manual contains cautions and warnings alerting the user to hazardous operating and servicing conditions. This information is flagged by CAUTION or WARNING headings throughout this publication, where applicable, and is defined in this manual under SAFETY SYMBOLS. To ensure the safety of operating and servicing personnel and to retain the operating integrity of this Instrument, these instructions must be adhered to. • Turn off the Instrument before connecting or disconnecting test leads, or before moving test weights. • Do not use this Instrument with any accessories not specifically designed to be used with this product. • Do not use this Instrument to measure live circuits. • The circuitry enclosed in the Model 701 produces high voltages. Make sure that the main selector switch is in the OFF position before removing the back cover. • Product intended for indoor use only. • The test weights included in this kit are heavy. Exercise care in handling. • Improper battery installation will damage this instrument. INTRODUCTION DESCRIPTION The Model 701 Test Kit for Static Control Surfaces includes a hand-held megohmmeter (here-in after referred to as the "Instrument" or "Model 701") and accessories. The kit has been specifically designed for evaluating the resistive characteristics of static control surface materials and testing installed surfaces as specified in ESD Association Standards. The Instrument has four test functions which allow the user to measure the resistance of a static control surface at either of two test voltages, verify proper Instrument performance, and check the electrical continuity of the test set-up. ACCESSORIES All accessories required for operating the Model 701 are included in the test kit. Available replacement parts are listed on page 6. UNPACKING AND INSPECTION Examine the shipping carton for obvious signs of damage. If damage is suspected, open the carton and inspect the Instrument for possible damage. If damage is noted, notify the carrier and supplier immediately. If the Instrument appears to be in good condition, read this Operator's Manual in its entirety. Check that all items are included with the Kit, then run a series of familiarity tests as instructed in this manual. CONTROLS, CONNECTORS, AND INDICATORS GENERAL Before attempting any operation of the Instrument, become familiar with each control. A thorough understanding of how the Instrument operates will avoid undue mistakes and prolong its useful life. Figure 3-1. Controls, Connectors, and Indicators 1. Main Selector Switch: Main function selector switch allows selection of desired test function. 2. TEST Button: This button engages the Instrument and activates the test function selected. 3. OHMS Scale: This scale is used in conjunction with the SURFACE TEST functions to indicate the amount of resistance measured. 4. CONTINUITY Scale: This scale indicates the total resistance of the test set-up (meter, leads, weights, and calibration plate) in the CONTINUITY TEST function. 5. BATTERY Scale: This scale indicates the charge level of the main battery of the Instrument in the BATTERY TEST function by verifying the open circuit output test voltage. 6. Test Jacks: These jacks are used to connect the Instrument to the test leads. 1