The Desco™ Combo Tester X3 satisfies ANSI / ESD S20.20 requirements for a Compliance Verification Plan for Wrist Strap, Ground Cord, and Foot Grounder testing. Simultaneously test wrist straps and shoe grounders or turn off one or the other high and low tests with dual in-line package (DIP) switches.
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| Quantity | Part |
|---|---|
| 1 | Combo Tester X3 |
| 1 | Dual Foot Plate |
| 1 | Power Adapter, 12VDC, with interchangeable plugs (North America, UK/Asia, Europe) |
| 1 | Foot Plate Cord, 6 feet |
| 1 | Ground Cord |
| 1 | Test Stand |
| 2 | Socket Head Screws, 1/4-20 x 3/4 inch |
| 1 | Flat Head Screw, 8-32 x 5/8 inch |
| 2 | Pan Head Screws, 10-32 x 5/8 inch |
| 2 | Nuts, 10-32 |
| 4 | Pan Head Screws, 10-32 x 5/8 inch |
| 1 | Certificate of Calibration |
The resistance limits for footwear and wrist strap tests are controlled by the DIP switches located on the left side of the Desco™ Combo Tester X3. Use the following tables for the DIP switch settings and their corresponding test values.
Default settings are in Bold.
Wrist Strap Resistance
DIP switches 5 and 6 control the HIGH test limit.
The LOW limit for the wrist strap is set to 750 Kilohms (7.5 x 105) and cannot be modified by the user.
| Switch 5 | Switch 6 | HIGH Limit Resistance |
|---|---|---|
| OFF | OFF | Wrist Strap Test Disabled |
| ON | ON | 10 Megohms (1 x 107) |
| ON | OFF | 35 Megohms (3.5 x 107) |
DIP switch 5 must be ON (default setting) for the wrist strap test to be active. The wrist strap test will be disabled if DIP switch 5 is set to OFF.
The resistance limits for the shoe grounder and wrist strap tests are controlled by the DIP switches located on the left side of the Desco™ Combo Tester X3. Use the following tables for the DIP switch settings and their corresponding test values.
Default settings are in Bold.
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 107) |
| OFF | OFF | 35 Megohms (3.5 x 107) |
| ON | OFF | 100 Megohms (1 x 108) |
| OFF | ON | 1 Gigohm (1 x 109) |
DIP switches 3 and 4 control the LOW test limit.
| Switch 1 | Switch 2 | LOW Limit Resistance |
|---|---|---|
| OFF | OFF | footwear test disabled |
| ON | OFF | 100 Kilohms (1 x 105) |
| OFF | ON | 750 Kilohms (7.5 x 105) |
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