50407 / DUAL INDEPENDENT FOOTWEAR AND WRIST STRAP TESTER

Transcription

1 50407 / DUAL INDEPENDENT FOOTWEAR AND WRIST STRAP TESTER INSTALLATION AND OPERATING INSTRUCTIONS 3651 Walnut Avenue, Chino, CA Phone: (909) Fax (909) DescoEMIT.com TB-6502 Page 1 of 8 Revision May 2007

2 50407 / 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 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 Frequency of Functional Testing The wrist strap system should be tested daily to ensure proper electrical value. Per ESD Handbook TR paragraph 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 paragraph 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: / Dual Independent Footwear and Wrist Strap Tester / Dual Foot Plate 3. Plug-in Power Supply (9-12 Volts DC, ma, 2.5mm center positive output) Stereo Plug to Stereo Plug 5. R391 Banana Plug to Ring Terminal 6. Certificate of Compliance TB-6502 Page 2 of 8 Revision May 2007

3 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 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). TB-6502 Page 3 of 8 Revision May 2007

4 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 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. TB-6502 Page 4 of 8 Revision May 2007

5 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 5 of 8 Revision May 2007

6 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: 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 % 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/ The contains 14 standard resistors to check the following high and low limit ranges: 1. 10K low 2. 10K safe K low K safe 5. 1M low 6. 1M safe 7. 10M safe 8. 10M high 9. 35M safe M high M safe M 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/ TB-6502 Page 6 of 8 Revision May 2007

7 2. Select the 1M low range on the rotary switch of the 50401/50407/ 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/ Select the appropriate fail low range on the rotary switch of the 50401/50407/ 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 7 of 8 Revision May 2007

8 TECHNICAL SUPPORT: USA Europe Desco EMIT Charleswater 3651 Walnut Avenue Unit 17, Millbrook Business Park, Sybron Way Chino, CA Crowborough, East Sussex, TN6 3JZ, U.K. Tel: (909) Tel: Fax: (909) Fax: LIMITED WARRANTY Desco EMIT expressly warrants that for a period of five (5) years from the date of purchase, Desco EMIT / 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 (Chino, CA) or (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 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. TB-6502 Page 8 of 8 Revision May 2007