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3M WS AWARE DUAL WORKSTATION MONITORS
3M WS AWARE DUAL WORKSTATION MONITORS

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Product Code: 3M-CTC061-3-242-T
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The 3M WS Aware Workstation Monitor provides continuous monitoring of all grounding parameters on a workbench or in a tool in full compliance with ANSI 6.1 and ANSI/ESDA - S20.20 requirements, as well as highfrequency noise (EMI) on ground. For operators, WS Aware Monitors utilize dual wrist straps for a continuous resistivity check of human body connection and patented advanced DSP technology for reliable monitoring utilizing ultra-low control voltage. Each operator’s body voltage is also continuously monitored. Patented optional Big Brother terminals allow the monitor to alarm when an operator approaches static-sensitive components, but does not plug in his or her wrist strap properly. WS Aware CTC061 provides continuous monitoring for two metal grounds (such as tools) and for two “soft” grounds (such as dissipative mats, surfaces and parts made of dissipative plastics), or four metal grounds (CTC062). It provides monitoring of EMI on metal grounds with programmable alarm thresholds. As electromagnetic interference (EMI) is rapidly becoming a significant factor in equipment failures, this patented feature helps to provide proper operation of your equipment.

Features
• Highly integrated credit card-size unit offers combination of features.
• Proper operator grounding — Big Brother operator presence detector
  alerts if an operator is within reach of sensitive components but is not plugged in.
• Ultra-low voltage — only 25 millivolts of signal to any part of wrist strap at any time
• ANSI 6.1 and ESDA S20.20 compliant ground monitoring.
• EMI monitoring on grounds.
• Safety — built-in safety 1 megohm resistors for each half of the wrist strap
* Output to facility monitoring system

CONNECTIVITY
Current Loop                         4-20 mA
Logic Level                           0/20 mA
MODBUS                             MODBUS std. compliant
Data Connector                     RJ45 jack

WRIST STRAP MONITOR
Wrist Strap Type                   Dual, 3.5 mm plug
Connection to Ground            1 megohm for each side
Wrist Straps Monitored          2
Imposed Voltage on Body      0.025 V (25mV) max
Remote Terminals                 2, one for each operator
Remote Terninal Cables         Mini-DIN 6 pin
Visitor Jack on Remote          Available
Body Resistance Alarm level  10 megohm default
Body Voltage Alarm Level       ±2.5 V default (adjustable)
Local Indication                      LED, buzzer
Indicated Parameters              Availability Continuity Body Voltage
Output Parameters for Each    Availability Continuity Body Voltage
   Operator

GROUND MONITOR
Parameters Monitored                                  Typical Properties
3M-CTC-061  Metal Ground (tools)                  2 Connections
                    Dissipative Surfaces                  2 Connections
3M-CTC-062  Metal Ground (Tools)                 4 Connections
Monitored Ground Connector                          No-screw terminal
Connection Activation                                    Dip-switch (no Jumpers)
   Metal Ground Alarm                                   1-20 ohm (10 ohm default)
Dissipative Ground Alarm                               10-1,000 megohm
                                                                    (1,000 megohm default)
Imposed Voltage  
   Metal Ground                                              <0.075 V open circuit
   Dissipative Surfaces                                    <0.4 V open circuit
EMI on Metal Ground Sensitivity                      0 dBm (226 mV) default
Local Indication                                              Good/alarm/off, LED, buzzer
Indicated Parameters                                      Resistance to ground, EMI on metal ground
Output Parameters                                         Availability (pass/fail)
Output Parameters for Each Connection           Resistance to ground, EMI (metal ground)

MANY STYLES AND OPTIONS AVAILABLE- CALL FOR ADDITIONAL INFORMATION
3M-CTC061-3-242-T    WS Aware 4  .20mA CTA242 w/o PS