Vermason 222696 Operation Instructions

Limit Comparator

Operation Instructions

Figure 1. Vermason
Description
Frequency of recalibration should be based on the critical
nature of those ESD sensitive items handled and the risk
of failure for the ESD protective equipment and materials.
In general, Vermason recommends that calibration be
performed annually.
Use the Vermason 222696
periodic testing (once every 6-12 months) of the Combo
Tester X3. The Limit Comparator can be used on the shop
floor within a few minutes virtually eliminating downtime,
verifying that the tester is operating within tolerances.
The Vermason 222696
the following items:
Item Description
222550 Combo Tester X3
222551 Combo Tester X3 with Stand
222553 Combo Tester X3 with 10mm Adaptor
222554 Combo Tester X3 with Stand and 10mm
Adaptor
Phone: 0044 (0) 1462 672005, Fax: 0044 (0) 1462 670440 • E-mail: Service@Vermason.co.uk, Internet:
TB-7573 Page 1 of 3 October 2013

TECHNICAL BULLETIN TB-7573

222696 Limit Comparator
Limit Comparator to perform
Limit Comparator is to be used with
UNIT C, 4TH DIMENSION, FOURTH AVENUE, LETCHWORTH, HERTS, SG6 2TD UK

Packaging

1 Limit Comparator
2 Test Leads with Banana Plug Terminals
1 Certificate of Calibration

Tester Configuration

The resistance limits for footwear and wrist strap tests are
controlled by the DIP switches located on the left side of the
tester. Use the following tables for the DIP switch settings
and their corresponding test values.
Left Side View
Figure 2. Locating the DIP switch on the Combo Tester
X3

FOOTWEAR RESISTANCE

DIP switches 1 and 2 control the HIGH test limit.
Switch 1 Switch 2 HIGH Limit Resistance
ON ON 10 Megohms (1 x 10
OFF OFF 35 Megohms (3.5 x 10
ON OFF 100 Megohms (1 x 10
OFF ON 1 Gigohm (1 x 10
DIP switches 3 and 4 control the LOW test limit.
Switch 3 Switch 4 LOW Limit Resistance
ON OFF 100 Kilohms (1 x 10
OFF ON 750 Kilohms (7.5 x 10
default setting
NOTE: At 1 Gigohm high limit resistance, a dirty foot
plate could result in a false pass. Be sure to keep the
foot plate clean particularly when using this setting.
This setting is not suitable for relative humidity greater
than 50%.
Made in the
United States of America
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Vermason.co.uk
© 2013 Vermason