Model GAM-7
Wrist Strap Monitor and ESD Footwear Tester

Continuously monitors the static discharge paths from operator
and work surface to earth ground. Tests footstraps, conductive
shoes, floors, multilayer and homogeneous anti-static mats,
chairs, smocks, tools and the tops of anti-static worksurfaces.

Features:

• Monitors any conventional wrist strap and coil cord
• System tests ESD footwear
• ON-OFF switch in Operator banana jack
• Fast response - detects intermittent coil cords
• Computer output signal
• Eliminates daily testing
• Simplifies ESD audits

The Model GAM-7 continuously monitors any conventional wrist strap and coil cord and automatically verifies the integrity of the equipment grounding conductor in the branch circuit (the green or green/yellow wire).  It assures that static is discharged to earth ground rather than merely to a small capacitance.

It provides audible and visual warning, plus location of a grounding fault the instant it occurs, plus an output signal to a central monitoring station.

The GAM-7 is sensitive enough to monitor a 5th percentile female, essentially a 5' tall, 90lb. woman, as well as a 95th percentile male, a 6' 5" tall, 250lb. man.  No adjustments are required.  This range plus insensitivity to squeezing or stretching the coil makes the GAM-7 a highly dependable and cost-effective instrument.

The GAM-7 has two banana jacks, a test button, a green test LED, two pair of red and green LEDs and an audible alarm.  The banana jack on the right is for the coil cord and the other is a common point ground.  The test button is for testing footwear, conductive shoes, floors, anti-static mat snaps, static-dissipative work surfaces, ESD chairs and smocks.  The first pair of LEDs indicates continuity of the static discharge path to earth ground.  The second pair indicates grounding status of the operator.  The unit can be conveniently mounted on or at the rear of the workstation.

The unit automatically self-tests when plugged in.  If the AC outlets' polarity is incorrect or the path to ground via the equipment grounding conductor (the green wire), or an auxiliary ground bus exceeds 1K ohms, the alarm sounds and both red LEDs turn on.  The instant a fault occurs, the alarm sounds and the red Operator LED turns on..

A person can take the coil cord along or snap it on the Standby Stand^tm (SBS) when leaving the workstation.  In either case, first touching the SBS initiates a ten second audio delay allowing the coil cord to be withdrawn without sounding an alarm.  If the coil cord is accidentally withdrawn from the monitor, the alarm sounds.