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Unit 17. Millbrook Business Park, Sybron Way • Crowborough, East Sussex TN6 3JZ United Kingdom

Phone: 00 44 (0) 1892-665313 • Internet: 

Charleswater.co.uk

PPE-5098.E

 Page 4 of 4

© 2014 Charleswater

Maintenance and Calibration

The Jewel

®

 Workstation Continuous Mini Monitor is 

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 Charleswater 

50512

 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 

50512

 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 

50512

 provides a simple and quick means to assure 

compliance verificaton Per ANSI/ESD S20.20 Table 3 

per ESD TR53.

Limited Warranty

Charleswater expressly warrants that for a period of one (1) year 

from the date of purchase, Charleswater Continuous Monitors

 

will be free of defects in material (parts) and workmanship 

(labor). Within the warranty period, the product will be tested, 

repaired or replaced at Charleswater’s option, free of charge. Call 

Customer Service at 00 44 (0) 1892-665313 for a Return Material 

Authorisation (RMA) and for proper shipping instructions and 

address.  You should include a copy of your original packing slip, 

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

should be shipped prepaid to the Charleswater factory. Warranty 

replacements will take approximately two weeks.

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 Charleswater or any seller be responsible or 

liable for any inury, loss or damage, direct or consequential, 

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.

2. Remove the charges from your  body by making 

  contact with a properly grounded ESD worksurface.  

  Snap the cord to the wristband, and fit it snugly onto 

  the wrist.  This should silence the audio and cause 

  the LEDs to switch from red to green.  If this does not

  happen, check the coil cord for continuity or damage.  

  Examine the wrist and secure that it has a secure 

  fit. If you have dry skin, apply an approved dissipative  

  hand lotion such as Menda 

35666

 Reztore™ ESD 

  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 

Charleswater 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:

0ºC - 38ºC

Humidity Range:

0-95% RH, non- condensing

Dimensions:

70.4mm L x 52.6mm W x 18mm 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 Vinyl or 

Micastat

®

 Dissipative Laminate with conductive buried 

layers.  Charleswater continuous monitors are not 

recommended for use with homogeneous matting.

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