Dual Wire Coil Cord provides redundancy; even if one conductor is severed,
operator has reliable path-to-ground with other wire.
•
Used with resistive loop technology continuous monitor, continuously
verifies the proper resistance to ground of the operator
•
Custom manufactured right angle mono-plug reduces chance of accidental
disconnects providing more secure ground connection
•
Coil cord with molded 1 Megohm current limiting resistor on both ground
paths to protect user from shock due to inadvertent contact with line
voltage
•
28 gauge wire
•
3.5mm phono plug connector
"If any part of the loop should open (become disconnected or have out of limit resistance),
the circuit will go into the alarm state" [ref TR20.20], nonetheless, due to the redundancy
inherent in the dual wire wrist strap design, the operator will continue to be grounded via
the second intact wire.
Per ESD Handbook TR20.20 section 5.3.9.2.2 Dual Conductor Resistance Continuous
Monitors, "This type of monitor is used with a two wire (dual conductor) wrist strap. The
wrist strap assembly consists of a two-wire ground cord and a wristband that has two
isolated halves. When a person is wearing the wrist strap properly, the monitor measures
the loop resistance consisting of one wire of the ground cord, one-half of the wristband,
the person's skin, the second half of the wristband, and a second wire in the ground cord.
If any part of the loop should open (become disconnected or have out of limit resistance),
the circuit will go into the alarm state.
ESD Handbook TR 20.20 paragraph 5.3.2.4.4 Test Frequency "Because wrist straps have
a finite life, it is important to develop a test frequency that will guarantee integrity of the
system. 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"
Continuous Monitors pay for themselves improving quality, productivity, eliminating wrist
strap daily testing and test result logging. Per ESD-S1.1 paragraph 6.1.3 Frequency of
Functional Testing "Daily [Wrist Strap] testing may be omitted if constant monitoring is
used."
Improve wrist strap contact with Reztore™
ESD Hand Lotion
•
Superior reliability. Greatly exceeds ESD S1.1 Bending Life Test. Tested at
over 200,000 cycles vs. the 16,000 requirement
•
Superior warranty - See details of 1 year Limited Warranty at
http://www.Desco.com/Warranty.aspx
Use patented* Dual Wire Wrist Strap with Desco Dual Wire Continuous
Monitor
ITEM REF. #
DESCRIPTION
19868 SPR1106 6’
Coil Cord, 7mm male snaps, right angle mono plug
19863 SE4040
19862 SE4033
12' Coil Cord, 7mm male snaps, right angle mono plug
6' Coil Cord, 4mm female snaps, right angle mono plug
*U.S. Patents 6,052,053 and 6,205,408
COIL CORD, DUAL-WIRE, DUAL-SNAP, RIGHT ANGLE MONO PLUG
DESCO WEST:
3651 WALNUT AVE., CHINO, CA 91710 WEB SITE: Desco.com
PHONE (909) 627-8178 FAX (909) 627-7449
DESCO EAST:
ONE COLGATE WAY, CANTON, MA 02021-1407
PHONE (781) 821-8370 FAX (781) 575-0172
DRAWING
NUMBER
19868
DATE:
March
2009
©2009 DESCO INDUSTRIES INC.
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