The document introduces the features and characteristics of Ground Man Ground Monitors for Tools, including ground impedance monitoring, adjustable impedance alarm level, enable/disable for each ground, operator wrist strap monitoring, operator body voltage monitoring, etc. The product is applicable in electronics assembly, semiconductor device manufacturing, medical environment, military aerospace, and other fields to protect sensitive boards from overvoltage and electrostatic discharge.
Grounding is essential for ESD protection in manufacturing and service environments. The 3M Ground Man monitors continuously check up to three grounding points on tools, indicating status and providing alarms when a connection fails.
The monitors feature adjustable alarm thresholds, logic‑level output to shut down a tool on ground failure, and the Ground Man Plus version adds wrist‑strap monitoring for operators. They are compact, easy to install, and comply with ANSI/ESDA S.20.20 standards.
| Number of monitored grounds | 3 |
|---|---|
| Alarm threshold range | 1 – 20 Ω |
| Ground impedance range | 1 – 20 Ω |
| External adapter dimensions | 22 mm × 61 mm × 63 mm |
| Tool output signal | Logic level signal |
| Wrist‑strap monitoring (Ground Man Plus) | Yes |
It can monitor up to three grounding points on a tool.
The alarm threshold can be set between 1 and 20 Ω.
It provides a logic‑level signal that can shut down the tool when a ground failure is detected.
Yes, the Ground Man Plus version adds wrist‑strap monitoring for operators.