background image

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

TB-3061

 Page 1 of 4

© 2019 DESCO INDUSTRIES INC

Employee Owned

Body Voltage Monitor

Installation, Operation and Maintenance

Description

The Desco Body Voltage Monitor is a single station 

continuous monitor for one operator, one ESD worksurface 

and one tool ground. A second monitored jack is featured for 

use by a supervisor or second operator.
The Body Voltage Monitor uses 

Dual-Channel Voltage 

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.

February 2019

Figure 1. Desco 

19241

 Body Voltage Monitor

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

1  Mat Monitor Cord (White)

1  Tool Monitor Cord (White)

1  Monitor Ground Cord (Green and Yellow)

1 Washer

1  Flat Head Screw, 6-32 thread

1  Alligator Clip

1  Ring Terminal

1  Mounting Bracket

2  Pan Head Screws, #8 x 3/4"

1  Certificate of Calibration

  TECHNICAL BULLETIN TB-3061 

Made in the

United States of America

Содержание 19241

Страница 1: ...nal 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 February 2019 Figure 1 Desco 19241 Body Voltage Monitor ANSI ESD S20 20 section 7 3 states Compliance verificat...

Страница 2: ...erly grounded F Supervisor LED When the LED is illuminated green the 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 H Monitored Tool Terminal Monitors a grounded metal tool fixt...

Страница 3: ...itor cord from the back of the monitor to the worksurface mat Use the included washer and screw to secure the cord to the mat see Figure 5 The worksurface mat requires its ground cord to have an embedded 1 megohm resistor such as the Desco 09813 Figure 5 Screw allows ground cord to be bolted to mat to keep cord from disconnecting Figure 4 Body Voltage Monitor with included mounting bracket 5 Attac...

Страница 4: ...r Dimensions 2 4 x 2 7 x 1 2 6 1cm x 6 9cm x 3 0cm Monitor Weight 0 4 lbs 0 2 kg DEFAULT TEST VOLTAGES Operator Open Circuit 0 5 V Worksurface Open Circuit 1 5 V Tool Open Circuit 0 5 V DEFAULT TEST LIMITS Operator Fail 3 VDC Alarm Accuracy 1 VDC Worksurface Low Fail 450 kilohms Pass 500k 5M High Fail 5 5 megohms Tool Pass 0 2 ohms Fail 3 ohms Limited Warranty Warranty Exclusions Limit of Liabilit...

Страница 5: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Desco 19241 ...

Отзывы: