The Trek Model 920 Combo Tester X3 simultaneously tests the integrity of an operator’s wrist strap, footwear and the presence of an inline current limiting resistor to determine proper operator grounding without the necessity of conducting separate tests. The 920 can be used as one of the tools to fulfill the requirements of the ANSI ESD S20.20 paragraph 6.1.3.2 entitled, Compliance Verification Plan, by providing easy, convenient equipment testing.
The 920 is factory set to provide testing of wrist straps in the range of 750 kilohm to 10 megohm and footwear in the range of 750 kilohm to 100 megohm. Other ranges can be selected, using convenient operator selected DIP switches, to provide compliance testing to meet other ESD Control Plan requirements.
Red and green LED indicators and an audible alarm are used to indicate pass/fail test results. The 920 is calibrated to NIST traceable standards. A Limit Comparator is optionally available to aid in recalibrating the 920 to its factory settings. Other optional equipment includes a rugged, steel pedestal stand, along with its appropriate mounting hardware, that can be used to conveniently mount the Stainless Steel Split Foot Plate.
Stainless Steel Split Foot Plate for Testing Grounders or Shoes
30 V Test Signal
Includes Relay for Use with Automatic Doors or Other Locking Systems
Multiple Options for Mounting
Test voltage：30V
standard：ANSI/ESD 20.20
Accuracy：±5% for < 1 megohm range
±10% for > 1 megohm range
Factory Settings
Wrist Strap: 750 kΩ to 10 megohm
Footwear: 750 kΩ to 100 megohm
Rated Tester Supply Voltage：12V DC (2.5mm connector- center positive)
Relay Contact Setting：1A @ 30V DC max.
Temperature Range: 41°F - 104°F (5°C - 40°C)
Maximum Relative Humidity
Maximum 80% up to 88°F (31°C) decreasing linearly up to 50% @ 104°F (40°C)
Maximum 50% at GW setting
