XA004143104 - 3M - Datasheet.Live

Employee Owned

SCS - 926 JR Industrial Drive, Sanford, NC 27332 • (919) 718-0000 • Website: StaticControl.com

Ground Man Plus Ground Monitor

Operation and Maintenance

USER GUIDE TB-9026

Figure 1. Ground Man Plus Ground Monitor.

Description

Overview

The SCS Ground Man Plus Ground Monitor can be

used at work areas or locations to monitor the ground

impedance of process tools including, but not limited to

semiconductor, disk drive and at panel environments.

Ground impedance monitoring can be used for up to

three points for metal ground within a tool. The Ground

Man Plus Ground Monitor can also be used to monitor

the resistance to ground and voltage level on a person.

The unit incorporates green and red LEDs and audible

alarms.

The Ground Man Plus Ground Monitor is available in two

models:

SCS offers the following accessories for the Ground

Man Plus Ground Monitor:

Packaging

1 Ground Man Plus Ground Monitor

1 Monitor Ground Cord (Green and Yellow)

1 Power Adapter, 12VDC, with interchangeable plugs

(North America, UK/Asia, Europe) (CTC334-WW only)

1 Certicate of Calibration

Ground Impedance Monitor

Continuously monitors for ground impedance on three

separate channels that are connected to three process

tools. The alarm level is set the same for all channels.

Output Signal

An output signal is available for connecting to the tool’s

computer or PLC. The 5V signal is either logic 1 or 0 for

indicating the monitored ground resistance/impedance

conditions and for the wrist strap.

Voltage on Person Wrist Strap Monitor

The Ground Man Plus Ground Monitor has a feature

that allows continuous monitoring of voltage on a person

through a dual conductor wrist band assembly.

Performance

Impedance Alarm Level

The alarm level can be preset from 1 to 20 ohms (from

1 to 10 ohms in increments of 1 ohm and from 10 to 20

ohms in increments of 2 ohms) by selecting through a

combination of LED patterns indicated on the front on

the unit. All three monitoring lines are set to the same

selected impedance value.

If the measured impedance on a line is lower than the

setting, a green LED will remain illuminated for that

line(s). If the impedance is higher than the preset level, a

red LED and audible alarm are activated for that line(s).

If the impedance level remains above the preset alarm

level, the red LED and audible sound remains on.

The SCS Ground Man Plus Ground Monitor only

monitors proper connection to ground. The monitored

equipment must be properly ground by itself. A wire must

be attached from the Ground Man Plus Ground Monitor

(GND terminals) to approved ground points to monitor

grounding of process tools correctly.

Output Signal Level

The output connector provides a logic 1 (+5V) when all

grounds are within limits and the unit is powered on. If

any of the monitored grounds fail, a wrist strap fails, or

power to the unit is lost, the output is logic 0 (0V).

Person Voltage and Resistance Monitor

The alarm level is monitored when a person is wearing

a dual conductor wrist strap assembly and plugged into

the front jack. There is a short hold on the body voltage

September 2015

Made in the

United States of America

Item Description

2368 Dual Conductor Fabric Wrist Band,

Adjustable

2360 Dual Conductor Ground Cord, Coiled, 5ft.

2370 Dual Conductor Ground Cord, Coiled, 10ft.

CTE701 Workstation Monitor Checker

CTA251 Replacement Jack PCB, Ground Man Plus

Item Description

CTC334-WW Ground Man Plus Ground Monitor,

with World Wide Power Adapter

CTC334-T Ground Man Plus Ground Monitor,

without Power Adapter

Employee Owned

SCS - 926 JR Industrial Drive, Sanford, NC 27332 • (919) 718-0000 • Website: StaticControl.com

Installation

Wire Attachment

The AC adapter should not be connected during the

wire attachment process. Attach 18 AWG wires to the

unit as described below. Strip vinyl insulation at each

end of the wires to approximately 1/3 in. (8 mm). Twist

the stranded wire on each end before inserting wire into

each connector location.

Attach ground wire to the GND connector on the back of

the unit. Insert a small blade screw driver into the orange

slot above. Push inward and insert the stripped wire fully

into the hole in the green connector. Hold wire fully in

and release the screw driver to allow the wire to catch.

If you are planning to use the Ground Man Plus Ground

Monitor output to the tool, attach wire to the Out

connector on back of unit. Insert the wire as described

above.

Attach the impedance monitor wire(s) to the chosen

ground line(s) G1, G2, G3 connector(s) on back of unit.

Insert the wire as described above.

AC/DC Adapter Connection

Connect the circular plug of the AC/DC Adapter into the

power jack on the back of the unit.

Mounting

Determine the mounting location of the Ground Man

Plus Ground Monitor. Attach the unit using one of the

following recommended methods:

• Screws

• SCS Dual Lock Fastener

Enabling or Disabling Monitoring of

Ground Lines

Sometimes not all three ground points in the tool need

to be monitored. This procedure will set up the number

of ground lines (G1, G2, G3) that will be used, so that

there is no need to put jumpers or shunts on the unused

ground monitoring inputs. The AC Adapter should not be

plugged in at this moment.

alarm so that it is not missed. The unit will respond to

either positive or negative voltage. The alarm is also

activated when the wrist band is worn too loosely and

the loop resistance level is exceeded. The red LED

indicates an over the resistance limit without a voltage

being generated on the person at the same time. The

green LED indicates proper connection of operator.

A green LED plus blinking red LED will indicate if there

is a body voltage generated; operator may still be

connected properly. The green LED is off when a dual

conductor ground cord is not plugged into the jack.

Enabling and Disabling Audible Alarm

The audible alarm can be enabled or disabled by

momentarily pressing a recessed miniature push-button

Set switch located on the back of the unit while the

monitor is powered on. Use a pin to press the switch.

Environmental Conditions

This equipment has been tested and found to be safe to

operate within these environmental conditions:

• This is not a warranty of equipment performance within

these conditions.

• Indoor use only

• Ingress Protection: IPX0

• Altitude: Up to 2,000 m

• Mains supply voltage uctuations up to ± 10% of the

nominal voltage.

• Transient over voltages up to the levels of over voltage

category II.

• Temporary over voltages occurring on mains supply.

• Pollution degree 2.

• Temperature: Maximum 110°F / 43°C Minimum 50°F /

10°C

• Humidity: Maximum relative humidity 80% for

temperatures up to 31°C decreasing linearly to 50%

relative humidity at 40°C .

Specication

Figure 2. Rear view of Ground Man Plus Ground

Monitor.

Power

AC/DC Adapter Universal 100 - 240VAC, 0.5A,

~50 - 60Hz

Output: 12VDC, 1.5A

General

Dimensions (approx) 2.4" W x 0.85" H x 2.6" D (61

mm W x 21 mm H x 66 mm D)

Weight (approx) 75g

Employee Owned

SCS - 926 JR Industrial Drive, Sanford, NC 27332 • (919) 718-0000 • Website: StaticControl.com

Attach GND line to known good ground

Attach monitor line(s) (G1, G2, G3) to ground that has

been determined to use. Do not plug any wires into

those ground monitor inputs that will be unused.

Press and hold the Set button using a pin. While the

button is pressed inward, plug in the AC Adapter and

then release the Set button.

Wait then for approximately 30 seconds. The Ground

Man Plus Ground Monitor will beep during this time.

After this time, the monitors will produce one beep and

will automatically disable the lines to which nothing was

connected. This procedure can be repeated whenever a

change in the number of ground lines being monitored is

required.

Enabling and Disabling Audible Alarm

The audible alarm can be enabled or disabled by

momentarily pressing a recessed miniature push button

Set switch located on the back of the unit while the

monitor is powered on. Use a paper clip to press the

switch.

Setting Impedance Alarm Levels

By default, the Ground Man Plus Ground Monitor factory

set to a 10 ohms alarm level.

If this specication needs to be changed, the following

procedure sets the impedance alarm level for all

channels (G1, G2, G3).

Repeat the steps above in description section.

Right after the beeps stop; continue pressing the Set

button until the impedance level is matched as shown in

the table on the next page.

When the beeping stops, the four left-most LEDs (as

shown in the photo on next page) allow for setting of

resistance value. G1 & G2 red LEDs are upper location

and G1 & G2 green LEDs are lower. Select the ground

impedance value by pressing the Set button to advance

the resistance limit. Turn the LEDs on or off as indicated

in the table on the next page.

Not pressing the Set switch for about seven seconds

after selecting causes the limit value to be saved and

normal operation started.

Using LED’s on Front of Unit to Set Resistance

Alarm Level

Verication Check

Verication of G1, G2 and G3 monitoring.

1. Prepare the CTE701 Workstation Monitor Checker.

2. Disconnect the wire connected to G1, G2 and G3

3. Connect the ground input of the checker to the ground

connector of the Ground Man Plus Ground Monitor.

Set the checker to a proper resistance alarm level

(see the CTE701 Workstation Monitor Checker User

Guide).

4. Connect the red wire tip of the checker to the device

terminal (G1, G2 and G3)

5. Press the Metal Ground Fail button on the checker.

The red LED of either G1, G2 or G3 should remain on.

6. Press the Metal Ground Pass button on the checker.

The green LED of either G1,G2 or G3 should turn

green.

7. Repeat these steps for all enabled ground monitoring

inputs.

Figure 3. LED lights used to set resistance alarm level.

Resistance

Ohms

LED

Employee Owned

SCS - 926 JR Industrial Drive, Sanford, NC 27332 • (919) 718-0000 • Website: StaticControl.com

Operations

Ground Impedance Monitor

Connect the ground wire to an electrical known good

ground point.

Connect the output wire to the tool, if you intend to use

it; otherwise leave it open.

Connect the ground monitor inputs to identied locations

in a process tool or several pieces of other equipment.

Make sure to connect the monitoring inputs to different

physical locations than those points used for their

grounding.

Person Voltage and Resistance Monitor

This is a feature of the Ground Man Plus Ground

Monitor. Plug the dual conductor ground cord of the

wrist strap into the jack on the front of the unit. If the

wrist strap is worn properly, a green LED will come on;

otherwise the red LED will be on. In order to provide

good ground connection, the wrist strap must be worn

tightly and the green light on the Ground Man Plus

Ground Monitor is an indication of that.

If, for some reason, while properly connected, the

operator develops excessive body voltage (in excess of

± 2.5V in any polarity), the green LED may still be on,

but the red LED will blink and the alarm sound will be

on. No LED is on if a dual conductor ground cord is not

plugged into the jack.

Maintenance

Procedures for Cleaning and Decontamination

Unplug power from the device. Clean using a dry brush

or lint free cloth around the device. In case of contact

malfunction, clean contacts using a contact cleaner or a

brush and tighten all connections. Plug in the power.

Repairs and Servicing

Do not attempt to repair the product yourself. Contact a

SCS sales representative or authorized dealer to request

inspection and repair. Replace power supply if damaged

using only SCS supplied parts. Other than replacement

of remote jacks, do not attempt to service the device.

There are no user-serviceable parts.

Device Calibration

Contact a SCS sales representative or authorized dealer

to request for product calibration if needed.

Safety Information

Read, understand, and follow all safety information

contained in these instructions prior to the use of this

device. Retain these instructions for future reference.

Intended Use

The SCS Ground Man Plus Ground Monitor is intended

for use by electrical assembly personnel to monitor

ground impedance for process and equipment tools.

The Ground Man Plus Ground Monitor is both a wrist

strap monitor and a ground monitor. It provides operator

grounding, and can be used at work areas or locations

to monitor the ground impedance of process tools in

semiconductors, disk drives, at panels, and EMS and

other environments. Ground impedance monitoring can

be used for up to three points for metal grounds within

a tool. The Ground Man Plus Ground Monitor can also

be used to monitor the resistance to ground and voltage

level on a person. The units incorporate green and red

LEDs and audible alarms.

The systems must be installed as specied in the user’s

guide in an indoor commercial/industrial environment,

and have not been evaluated for other uses or locations.

If the equipment is used in a manner not specied by the

manufacturer, the protection provided by the equipment

may be impaired.

Warning: To reduce the risks associated with hazardous

voltage and re:

• Do not use the power supply if damaged. Do not

modify or attempt to service the power supply. Contact

SCS authorized service center for replacement.

• Replace power supply if damaged using only SCS

supplied parts.

• Do not attempt to service the SCS Ground Man Plus

Ground Monitor, there are no user serviceable parts;

Return to SCS for service.

• Do not position the CTC334 Ground Man Plus Ground

Monitor accessories or other equipment where

unplugging the power supply is

difcult.

• Always locate the power source (socket or outlet) near

the equipment. The power supply plug serves as the

disconnect device.

• Do not use the Ground Man Plus Ground Monitor or

its power supply outdoors or wet/humid environments.

• Do not use the Ground Man Plus Ground Monitor or its

power supply outside of the operating conditions listed

in this user guide.

• Use only a dry cloth when cleaning.

Figure 4. Installing the Ground Man Plus Ground

Monitor.

Employee Owned

SCS - 926 JR Industrial Drive, Sanford, NC 27332 • (919) 718-0000 • Website: StaticControl.com

To reduce the risks associated with hazardous voltage:

• Use only the power supply provided by SCS and

specied for the country of use.

• Before installing the Ground Man Plus Ground Monitor

for use with any equipment, make sure that the Monitor

is properly grounded.

To reduce the risks associated with medical device

malfunction:

• Persons with heart pacemaker devices should never

use this Ground Man Plus Ground Monitor.

Caution: To reduce the risks associated with

environmental contamination:

• Dispose of Monitor and Power Supply in accordance

with all applicable local and government regulations.

Regulatory Information

FCC

This equipment has been tested and found to comply

with the limits for a Class A digital device, pursuant to

Part 15 of the FCC Rules. These limits are designed

to provide reasonable protection against harmful

interference when the equipment is operated in a

commercial environment. This equipment generates,

uses, and can radiate radio frequency energy and, if not

installed and used in accordance with the instruction

manual, may cause harmful interference to radio

communications. Operation of this equipment in a

residential area is likely to cause harmful interference

in which case the user will be required to correct the

interference at his own expense.

WEEE Statement

The following information is only for EU-members States:

The mark shown to the right is in compliance with

Waste Electrical and Electronic Equipment Directive

2002/96/EC (WEEE). The mark indicates the

requirement NOT to dispose the equipment as unsorted

municipal waste, but use the return and collection

systems according to local law.

cULus Statement

Meets cULus requirements.

CE Statement

Meets CE (European Confomity) requirements.

ICES Statement

This Class A digital apparatus complies with Canadian

ICES-003.

Cet appareil numérique de la classe A est conforme à la

NMB-003 du Canada.

China RoHS

Electronic Industry Standard of the People’s Republic of

China, SJ/T11363-2006, Requirements for Concentration

Limits for Certain Hazardous Substances in Electronic

Information Products.

This symbol, per Marking for the Control of

Pollution Caused by Electronic Information

Products, SJ/T11364-2006, means that the

product or part does contain a substance,

as detailed in the chart below, in excess

of the following maximum concentration

values in any homogeneous material: (a) 0.1% (by

weight) for lead, mercury, hexavalent chromium,

polybrominated biphenyls or polybrominated diphenyl

ethers; or (b) 0.01% (by weight) for cadmium. Unless

otherwise stated by SCS in writing, this information

represents SCS’s best knowledge and belief based upon

information provided by third party suppliers to SCS.

Employee Owned

SCS - 926 JR Industrial Drive, Sanford, NC 27332 • (919) 718-0000 • Website: StaticControl.com

Name and Content of Hazardous

Substances or Elements

Limited Warranty, Warranty Exclusions, Limit of

Liability and RMA Request Instructions

See the SCS Warranty -

http://staticcontrol.descoindustries.com/warranty.aspx

Part or Component Name

Hazardous Substances or Elements

(Pb) (Hg) (Cd) (CrVI) (PBB) (PBDE)

Termination in capacitor 0603 X O O O O O

Solder in diode X O O O O O

Finish in diode X O O O O O

Terminations in PCBs X O O O O O

Terminations in resistors 0603 X O O O O O

Plating in resistors 0603 X O O O O O

Resistor ink in potentiometer X O O O O O

Solder in instrument X O O O O O

Solder in IC X O O O O O

Solder in buzzer X O O O O O

Audio jack X O O O O O

O: Indicates that this hazardous substance contained in all of the homogeneous materials

for this part is below the limit requirement in the SJ/T11363-2006.

X: Indicates that this hazardous substance contained in at least one of the homogeneous

materials used for this part is above the limit requirement in the SJ/T11363-2006.