Page 9 - 3M ESD muszer katalógus

www.dpv-elektronik.eu

3M™ WS Aware®

Workstation Monitor

The 3M™ WS Aware® Workstation Monitor enables permanent monitoring of
two workstations

The measuring device is equipped with a DSP (digital signal processor) and monitors the proper
grounding of operators, tools and work surfaces. Furthermore, EMI events at the ground con-
nections are logged and displayed. 3M™ WS Aware monitors detect all grounding parameters of
the working environment according to ANSI 6.1 and ANSI/ESDA S.20.20.

3M™ WS Aware allows for a continuous monitoring and logging of all detected events by a
Facility Monitoring System (FMS) with a power data outlet or optionally with a digital MODBUS
interface for a network via Ethernet (see 3M™ Static Management Program SMP).

The 3M™ WS Aware CTC061 is designed to monitor the impedance of two low-resistance Remote Terminal CTA242
grounding connections (e.g. for tools, soldering irons, machines) and two high-resistance con-
nections (e.g. for table mats). Model CTC062 is designed to monitor the impedance of four
low-resistance ground connections.

In addition, EMI voltage occurring at the low-resistance ground connections is monitored and
indicated by a fl ashing yellow LED when the thresholds have been exceeded. Thresholds are
adjustable. Exceeding the adjusted thresholds will be visually indicated by LEDs (OK green, alarm Remote Terminal Big Brother CTA243
red, EMI voltage fl ashing yellow). Additionally, an acoustic alarm will sound, a function that can
be switched off. Not used inputs are disabled by DIP switches and indicated by a dark LED.

Remote Terminals
Two double conductor wrist straps (operator
and visitor) are monitored each by two remo-
te terminals that are connected to the 3M™
Properties WS Aware with a connecting cable and that
can be mounted e.g. on the bottom of table.
• Integrated, approximately credit-card sized monitor with versatile functions Bleeder resistance and body voltage are con-
• „Big Brother“ monitoring function identifi es operators who are not properly grounded tinuously monitored.
• Extremely low test voltage (approx. 25mV) for continuous monitoring of the double-
conductor wrist straps concerning voltage and resistance In case of the terminals with Big Brother
• Monitoring of grounding parameters according to ANSI 6.1 and ANSI/ESDA S.20.20 function, a photo sensor sounds alarm when
• EMI monitoring of the ground connections there is somebody at the workstation who is
not grounded via the remote terminal. This
• RJ45 connection for data transfer to PC prevents that persons work at the worksta-
• 2..20mA output / optionally MODBUS tion without being grounded by wrist strap.

9