TECHNICAL BULLETIN TB-3061 Body Voltage Monitor Installation, Operation and Maintenance Made in the United States of America ANSI/ESD S20.20 section 7.3 states Compliance verification records shall be established and maintained to provide evidence of conformity to the technical requirements. Per ANSI/ESD S1.1 Annex A.3 Daily (wrist strap system) testing may be omitted if constant monitoring used. Per ESD Handbook ESD TR 20.20 section 5.3.2.4.4 Typical Test programs recommend that wrist straps that are used daily should be tested daily. However, if the products that are being produced are of such value that knowledge of a continuous, reliable ground is needed, and then continuous monitoring should be considered or even required. Packaging 1 Body Voltage Monitor 1 Power Adapter, 5VDC, North America Figure 1. Desco 19241 Body Voltage Monitor 1 Mat Monitor Cord (White) 1 Tool Monitor Cord (White) 1 Monitor Ground Cord (Green and Yellow) Description 1 Washer The Desco Body Voltage Monitor is a single station 1 Flat Head Screw, 6-32 thread continuous monitor for one operator, one ESD worksurface 1 Alligator Clip and one tool ground. A second monitored jack is featured for 1 Ring Terminal use by a supervisor or second operator. 1 Mounting Bracket 2 Pan Head Screws, 8 x 3/4 The Body Voltage Monitor uses Dual-Channel Voltage 1 Certificate of Calibration Monitoring Technology for true continuous monitoring (versus pulsed or intermittent). The Dual-Channel Voltage Monitoring Technology uses one lead of the dual-wire wrist strap to provide a path-to-ground for the operator while the other lead continuously monitors for voltage induced onto the operator greater than 3 VDC. Voltage on the operator can be caused by strong AC fields in the work area or by other charge generators such as rolling a non-ESD safe chair. The Body Voltage Monitor has a second monitored jack for a supervisor or a second operator if needed at the workstation. An optional tool ground can be used to monitor the ground integrity of a conductive tool or fixture less than 3 Ohms. Each Body Voltage Monitor is calibrated with accepted procedures and standards traceable to the National Institute of Standards and Technology (NIST) and includes a NIST certificate. DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 (909) 627-8178 DESCO EAST - One Colgate Way, Canton, MA 02021-1407 (781) 821-8370 Website: Desco.com 2019 DESCO INDUSTRIES INC TB-3061 Page 1 of 4 February 2019 Employee OwnedH. Monitored Tool Terminal: Monitors a grounded metal Features and Components tool fixture. Connect the white tool monitor cord here. I. Ground Terminal: Common ground point for the monitor. Connect the green and yellow monitor ground cord here. J. Power Jack: Connect the included 5VDC power adapter A B here. Installation C D E F FRONT VIEW Monitor Ground Cord Tool Monitor Cord G H I J REAR VIEW Mat Monitor Cord Figure 2. Body Voltage Monitor features and components 1 megohm resistor A. Monitored Operator Jack: The operator connects to the monitor here. Metal Tool B. Monitored Supervisor Jack: The supervisor or second Fixture Worksurface operator connects to the monitor here. C. Operator LED: When the LED is illuminated green, the Figure 3. Installing the Body Voltage Monitor operator is properly grounded. When the LED is illuminated red and the alarm sounds, the operator is not properly grounded. 1. Remove the monitor from the carton and inspect for damage. D. Mat LED: When the LED is illuminated green, the worksurface mat is properly grounded. When the LED is NOTE: All Body Voltage Monitors are packaged with a illuminated red and the alarm sounds, the worksurface mat is wire shorting the tool terminal to the ground terminal. not properly grounded. This is to prevent the tool circuit from alarming when not in use. E. Tool LED: When the LED is illuminated green, the tool is properly grounded. When the LED is illuminated red and the 2. Determine the mounting location of the Body Voltage alarm sounds, the tool is not properly grounded. Monitor. The front panel should be visible to the operator. Use the included mounting bracket and 8 pan F. Supervisor LED: When the LED is illuminated green, the head screws if desired. supervisor is properly grounded. When the LED is illuminated red and the alarm sounds, the supervisor is not properly grounded. G. Monitored Mat Terminal: Monitors a worksurface mat for proper dissipative resistance and static charges. Connect the white mat monitor cord here. DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 (909) 627-8178 DESCO EAST - One Colgate Way, Canton, MA 02021-1407 (781) 821-8370 Website: Desco.com 2019 DESCO INDUSTRIES INC TB-3061 Page 2 of 4 Employee Owned