Desco EMIT 50407 Bedienungsanleitung

TB-6502 Page 1 of 8 Revision May 2007

Employee Owned

50407 / 50413

DUAL INDEPENDENT FOOTWEAR

AND WRIST STRAP TESTER

INSTALLATION AND OPERATING

INSTRUCTIONS

3651 Walnut Avenue, Chino, CA 91710

Phone: (909) 627-8178

Fax (909) 627-7449

DescoEMIT.com

TB-6502 Page 2 of 8 Revision May 2007

Employee Owned

50407 / 50413

DUAL INDEPENDENT FOOTWEAR AND WRIST STRAP TESTER

Installation and Operating Instructions

The Desco EMIT Dual Independent Footwear and Wrist Strap Tester is designed to test

personal grounding devices, wrist strap and ESD footwear, to satisfy the requirements and

the recommendations of the ESD Association.

Per ANSI/ESD S20.20 Paragraph 6.2.2.2 Personnel Grounding Guidance “A log should be

maintained which verifies that personnel have tested their personal grounding devices. (Wrist

Straps and ESD Footwear)”

Per ESD- S1.1 paragraph 6.1.3 Frequency of Functional Testing “The wrist strap system

should be tested daily to ensure proper electrical value.”

Per ESD Handbook TR 20.20 paragraph 5.3.2.4.2 Additional User Wrist Strap Testing

“Proper testing of the wrist strap includes the resistance of the groundable point on the end of

the cord, the cord itself, the resistor, the cord-to cuff snap connector, the resistance of the

interface of the cuff, the cuff/wrist interface, and the resistance of the person between the

wrist and the hand that contacts the test electrode.”

Per ESD Handbook TR 20.20 paragraph 5.3.2.2.2 Wrist Strap Ground Cord “At first glance,

the ground cord appears to be a relatively simple assembly. However, the design

requirements are considerable, given the wide range of user applications and the durability

requirements of constant tugging, flexing, and dragging over the edge of workstation tops and

equipment chassis.”

Remove from the carton and inspect for damage. Included in the carton should be:

1. 50407 / 50413 Dual Independent Footwear and Wrist Strap Tester

2. 50407 / 50413 Dual Foot Plate

3. Plug-in Power Supply (9-12 Volts DC, 100-600 mA, 2.5mm center positive output)

4. 50405 Stereo Plug to Stereo Plug

5. R391 Banana Plug to Ring Terminal

6. Certificate of Compliance

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Employee Owned

Power Ratings and Environmental Conditions

Rated voltage for Plug-in Power Supply: 120VAC (+/-10% maximum) 50Hz, 50mA

Rated voltage for 50407/50413: 12 Volts DC, 600 mA, (2.5mm connector - centre positive)

Relay contact rating: 1A at 30VDC maximum

Suitable for indoor use only at altitudes not exceeding 6500ft. (2Km)

Maximum relative humidity of 80% up to 88°F (31°C) decreasing linearly to 50% @ 104°F

(40°C)

Pollution degree 2 per IEC 644

Temperature range of 41°F (5°C) to 104°F (40°C)

The test resistance limits for footwear and wrist strap tests are controlled by the DIP switches

inside the tester. For a configuration different than the default settings and reset the DIP

switches on the side of unit as desired.

Footwear resistance range selection.

DIP switches 1 & 2 control the “HIGH” limit for the footwear test selection as follows:

Switch 1 Switch 2 High Limit Resistance

ON ON 10 Megohms (1 X 10E7)

OFF OFF 35 Megohms (3.5 X 10E7) DEFAULT (EUROPE)

ON OFF 100 Megohms (1 X 10E8) DEFAULT (USA)

OFF ON 1 Gigohm

*At 1 Gigohms high limit resistance, a dirty footplate could result in a false pass. When using

this setting, special care must be taken to keep the footplate clean.

DIP switches 3 & 4 control the “LOW” limit for the footwear test selection as follows:

Switch 3 Switch 4 Low Limit Resistance

OFF OFF 10 Kilohms (1 X 10E4)

ON OFF 100 Kilohms (1 X 10E5) DEFAULT (EUROPE)

OFF ON 1 Megohms (1 X 10E6) DEFAULT (USA)

Wrist strap test option selection.

DIP switch 5 must be “ON” (DEFAULT SETTING) for the wrist strap test to be active. If

the wrist strap test is disabled by DIP switch 5 being “OFF”, the 3 LEDs for this test will

remain “OFF” at all times.

The “LOW” limit for the wrist strap test is set to 1 Megohms and can not be changed by the

user. DIP switch 6 in the “ON” position (DEFAULT SETTING - USA) sets the “HIGH”

limit for the wrist strap test to 10 Megohms (10E7). DIP switch 6 in the “OFF” position

(DEFAULT SETTING – EUROPE) sets the “HIGH” limit for the wrist strap test to 35

Megohms (3.5 X 10E7).

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Employee Owned

Installation

Mount the tester in the desired location using the four mounting holes in the corners of the

sign.

Set the foot plate below the tester.

Insert one stereo plug of the 50405 Stereo Plug to Stereo Plug into the stereo jack on the

bottom of the tester. (See Figure 1.) Insert the other end of the stereo plug into the stereo

jack at the back of the foot plate. Verify that both plugs are fully inserted and tight.

* Jack is located under foot plate at upper center of foot plate.

Figure 1, Bottom View

Insert the banana plug end of the R391 Banana Plug to Ring Tongue into the “GROUND”

jack on the bottom of the tester. (See Figure 1.) Connect the other end of the cable to earth

ground. Verify that both connections are tight. Failure to correctly ground the tester could

significantly degrade the accuracy of the measurement.

Verify that the power supply is the appropriate voltage for your location. Insert the power

supply plug into the “POWER” jack on the left side of the tester making sure that the plug is

fully inserted into the jack and tight. (See Figure 2.) Plug the power supply into a convenient

power outlet.

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Employee Owned

Figure 2, Left Side View

A relay with both “normally open” and “normally closed” contacts is included for your

convenience. The terminal block on the bottom of the tester has terminals for “normally

closed,” “common,” and “normally open” going from left to right. (See Figure 1 and 3.)

Operation

Figure 3, Front View

Upon power up, the alarm will sound and all of the LEDs for the activated tests will be “ON.”

The 50407/50413 is ready for use. (See “wrist strap option selection” below.)

Pushing the touch plate on the front panel starts the test. During the test all LEDs will be

“OFF” to indicate that a test is in progress. The touch plate must remain depressed until

the test results are displayed. Depending on the configuration of the tester, the test could

require up to three (3) seconds.

The resistance is checked from the touch plate to the corresponding foot plate for each foot

and from the touch plate to the wrist strap connector jacks through the operator. A wrist strap

must be plugged into the appropriate jack before the touch plate is depressed if the wrist

strap option is activated. (See “wrist strap option selection” on page 3 above.)

The 50407/50413 can test both single and dual wrist straps. Single wrist straps are plugged

into the banana jack on the front side of the tester. (See Figure 3.) Dual wrist straps are

TB-6502 Page 6 of 8 Revision May 2007

Employee Owned

plugged into the phono jack on the front side of the tester. (See Figure 3.) The 50407/50413

automatically determines what type of wrist strap is being tested.

The LED(s) will turn off while the test is in progress; the test results for each foot and wrist

strap will then be displayed for approximately three (3) seconds. If all test results are “SAFE”

the internal relay will be activated while the test results are displayed. The relay can be used

for opening an electric lock to an ESD sensitive area. The maximum contact rating is:

1A@30VDC.

If any of the test results are failed “HIGH” or “LOW” an audible alarm will sound. The LED(s)

indicating the failed test will be displayed for approximately three (3) seconds, and the

internal relay will not activate.

CALIBRATION AND PERIODIC TESTING:

The accuracy of the 50407/50413 is specified as:

1. +5% for 1 Megohms and lower resistance ranges.

2. +10% for 1 Megohms and higher resistance ranges.

A periodic check (once every 6 to 12 months) using a precision resistance box should be

performed to verify proper operation.

A limit comparator, the 50401, can be purchased for the convenient periodic testing of the

50407/50413.

The 50401 contains 14 standard resistors to check the following high and low limit ranges:

1. 10K low

2. 10K safe

3. 100K low

4. 100K safe

5. 1M low

6. 1M safe

7. 10M safe

8. 10M high

9. 35M safe

10.35M high

11.100M safe

12.100M high

13.1G safe

14.1G high

TESTING PROCEDURE:

Wrist strap operation test.

1. Insert the 50401/50407/50413 test plug into the dual wrist strap connector on the

50407/50413.

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Employee Owned

2. Select the “1M low” range on the rotary switch of the 50401/50407/50413.

3. Press and hold the touch plate of the 50407/50413 until the test is completed. The

results of the test should be “fail low” for the wrist strap.

4. Select the “1M high” range on the rotary switch of the 50401/50407/50413 and repeat

the test. The results of the test should be “pass” for the wrist strap.

5. Select the “10M safe” or “35M safe” setting, whichever one is appropriate, on the

50401/50407/50413 and repeat the test. The results of the test should be “pass” for

the wrist strap.

6. Select the “10M high” or “35M high” setting, whichever one is appropriate, on the

50401/50407/50413 and repeat the test. The results of the test should be “fail high” for

the wrist strap.

Footwear operation test.

1. Insert the 50401/50407/50413 test plug into the foot plate cable connector on the

50407/50413.

2. Select the appropriate “fail low” range on the rotary switch of the 50401/50407/50413.

3. Press and hold the touch plate of the 50407/50413 until the test is completed. The

results of the test should be “fail low” on both feet.

4. Select the appropriate “safe low” setting on the 50401/50407/50413 and repeat the

test. The results of the test should be “pass” on both feet.

5. Select the appropriate “safe high” setting on the 50401/50407/50413 and repeat the

test. The results of the test should be “pass” on both feet.

6. Select the appropriate “fail high” setting on the 50401/50407/50413 and repeat the

test. The results of the test should be “fail high” on both feet.

TB-6502 Page 8 of 8 Revision May 2007

Employee Owned

TECHNICAL SUPPORT:

USA Europe

DescoEMIT Charleswater

3651 Walnut Avenue Unit 17, Millbrook Business Park, Sybron Way

Chino, CA 91710 Crowborough, East Sussex, TN6 3JZ, U.K.

Tel: (909) 627-8178 Tel: 01892 665313

Fax: (909) 627-7449 Fax: 01892 668838

LIMITED WARRANTY

Desco EMIT expressly warrants that for a period of five (5) years from the date of purchase, Desco

EMIT 50407 / 50413 will be free of defects in material (parts) and workmanship (labor). Within the

warranty period, a credit for purchase of replacement Desco EMIT products, or, at Desco EMIT's

option, the product will be repaired or replaced free of charge. If product credit is issued, the amount

will be calculated by multiplying the unused portion of the expected five year life times the original unit

purchase price. Call our Customer Service Department at 909-627-8178 (Chino, CA) or 781-821-8370

(Canton, MA) for a Return Material Authorization (RMA) and proper shipping instructions and address.

Please include a copy of your original packing slip, invoice, or other proof of date of purchase. Any

unit under warranty should be shipped prepaid to the Desco EMIT factory. Warranty replacements will

take approximately two weeks.

If your unit is out of warranty, Desco EMIT will quote repair charges necessary to bring your unit up

to factory standards. Call Customer Service at 909-627-8178 for proper shipping instructions and

address. Ship your unit freight prepaid.

WARRANTY EXCLUSIONS

THE FOREGOING EXPRESS WARRANTY IS MADE IN LIEU OF ALL OTHER PRODUCT

WARRANTIES, EXPRESSED AND IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR

A PARTICULAR PURPOSE WHICH ARE SPECIFICALLY DISCLAIMED. The express warranty will

not apply to defects or damage due to accidents, neglect, misuse, alterations, operator error, or failure

to properly maintain, clean or repair products.

LIMIT OF LIABILITY

In no event will Desco EMIT or any seller be responsible or liable for any injury, loss or damage,

direct or consequential, arising out of the use of or the inability to use the product. Before using, users

shall determine the suitability of the product for their intended use, and users assume all risk and

liability whatsoever in connection therewith.

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