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-3050 Page 4 of 4

© 2013 DESCO INDUSTRIES, INC.

Employee Owned

Hand Lotion. When leaving the area, a person can

take the coil cord along or leave it attached to the

monitor in park position.

NOTE: Removing the banana plug from the monitor’s

operator jack will disable the audio alarm.

It is recommended that you use the Park Snap rather

than continuously removing the Banana Plug from its

jack. Doing so will increase the life span of the operator

jack. If your process requires the constant insertion and

removal of the banana plug, please contact your Desco

Representative for alternate solutions.

Specifications:

Test range of monitored circuit:

500K - 10M ohms†

Worksurface Limit*:

Set to 500 Megohms ± 20%

Operating Voltage:

24VAC, 50-60 Hz

Wrist strap open circuit voltage:

1.2 Volts peak to peak @ 1-2 MicroAmps

Mat test open circuit voltage:

5 - 7.5 Volts

Response time to alarm:

<50 mS

Operating Temperature:

32ºF - 100ºF

Humidity Range:

0-95% RH, non-condensing

Dimensions:

2.77" L x 2.07" W x .71" H

† This cannot be verified with standard DC test

equipment. The continuous monitor is an impedance

sensing device and the limits are determined by the

magnitude and angle of the impedance.

*Contact factory for special limits.

NOTE: Worksurface must have a conductive layer

such as Dual Layer Rubber or Dissipative 3-Layer

buried layers. Desco continuous monitors are not

recommended for use with homogeneous matting.

Maintenance and Calibration

solid state and designed to be maintenance free. It is

calibrated to NIST traceable standards. There are no

user adjustments necessary. Because of the wave

distortion impedance sensing nature of the test circuit,

special equipment is required for calibration. We

recommend that calibration be performed annually using

the Desco 98220 Continuous Monitor Calibration Unit.

The Calibration Unit is a most important product which

allows the customer to perform NIST traceable

calibration on continuous monitors. The 98220 is

designed to be used on the shop floor at the workstation,

virtually eliminating downtime, verifying that the

continuous monitor is operating within tolerances. The

98220 provides a simple and quick means to assure

compliance verificaton Per ANSI/ESD S20.20 Table 3

per ESD TR53.

Limited Warranty

Desco expressly warrants that for a period of one (1) year from the date

of purchase Desco Continuous Monitors will be free of defects in material

(parts) and workmanship (labor). Within the warranty period, a credit

for purchase of replacement Desco Continuous Monitors, or, at Desco’s

option, the Continuous Monitor will be repaired or replaced free of charge.

If product credit is issued, the amount will be calculated by multiplying the

unused portion of the expected one year life times the original unit purchase

price. Call Customer Service at 909-627-8178 (Chino, CA) or 781-821-8370

(Canton, MA) for Return Material Authorization (RMA) and proper shipping

instructions and address. Include a copy of your original packing slip,

invoice, or other proof of date of purchase. Any unit under warranty should

be shipped prepaid to the Desco factory. Warranty replacements will take

approximately two weeks.

If your unit is out of warranty, Desco will quote repair charges necessary

to bring your unit up to factory standards. Call Customer Service at 909-

627-8178 (Chino, CA) or 781-821-8370 (Canton, MA) for a Return Material

Authorization (RMA) and proper shipping instructions and address.

Warranty Exclusions

THE FOREGOING EXPRESS WARRANTY IS MADE IN LIEU OF

ALL OTHER PRODUCT WARRANTIES, EXPRESSED AND IMPLIED,

INCLUDING MERCHANTABILITY AND FITNESS FOR A PARTICULAR

PURPOSE WHICH ARE SPECIFICALLY DISCLAIMED. The express

warranty will not apply to defects or damage due to accidents, neglect,

misuse, alterations, operator error, or failure to properly maintain, clean or

repair products.

Limit of Liability

In no event will Desco or any seller be responsible or liable for any

injury, loss or damage, direct or consequent, arising out of the use of or

the inability to use the product. Before using, users shall determine the

suitability of the product for their intended use, and users assume all risk

and liability whatsoever in connection therewith.