Dual Independent Footwear and Wrist Strap Tester
Contents
1. Vermason TECHNICAL BULLETIN TB 7535 Dual Independent Footwear and Wrist Strap Tester Installation and Operating Instructions Figure 1 Vermason 222700 Dual Independent Footwear and Wrist Strap Tester Description The Vermason 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 EN 61340 5 1 Use the Vermason Dual Independent Footwear and Wrist Strap Tester to fulfill the requirements of EN 61340 5 1 Per EN61340 5 1 Table 1 ESD protective item requirements the Resistance to be for Wrist Strap as worn to be 1M 1 X 10E6 ohms lt Rp lt 3 5 x 10E7 ohms When footwear floor systems are used as primary means of grounding personnel the resistance of the combination shall be determined by the ESD co ordinator and is recommended to be 1M 1 X 10E6 ohms and 3 5 x 10E7 ohms EN 61340 5 1 Table 1 ESD protective item requirements NOTE 2 Wrist straps shall be checked before use Each check shall be made with the wrist band worn in contact with the wearer s skin and with the ground cord attached to the appropriate tester EN 61340 5 1 clause 9 6 Daily checks clause 9 6 2 Wrist strap Where toe and heel straps are used as ESD footwear once these are worn outside the EPA ESD protected area particularly on carpets they are likely to accumulate fluff and become ineffective2. seconds and the internal relay will not activate Specifications Rated tester voltage 12 VDC 600 mA 2 5 mm connector center positive Relay contact rating 1 A 30 VDC max Temperature range 41 F 104 F 5 C 40 C Operating conditions Indoor use only at altitudes less than 6500 ft 2 km 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 Calibration The Vermason Dual Independent Footwear and Wrist Strap Tester is calibrated to standards traceable to NIST Frequency of recalibratrion should be based on the critical nature of those ESD sensitive items handled and the risk of failure for the ESD protective equipment and materials UNIT C 4TH DIMENSION FOURTH AVENUE LETCHWORTH HERTS SG6 2TD UK Phone 0044 0 1462 672005 Fax 0044 0 1462 670440 e mail Service Vermason co uk Internet Vermason co uk TB 7535 Page 2 of 3 2009 Vermason In general we recommend that calibration be performed annually The accuracy of the Dual Independent Footwear and Wrist Strap Tester is specified as e 5 for 1 Megohm and lower resistance ranges e 10 for 1 Megohm 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 The Vermason 222693 Limit Comparator is available for the convenient periodic testing of the Dual I
3. starts the test During the test all LEDs will turn 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 The Dual Independent Footwear and Wrist Strap Tester can test both single and dual wrist straps Single wire wrist straps are to be plugged into the banana jack labeled SINGLE WIRE located on the front panel of the tester see Figure 3 Dual wire wrist straps are to be plugged into the phono jack labeled DUAL WIRE located on the front panel of the tester see Figure 3 The tester 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 tests result in a PASS condition the internal relay will activate If any of the test results fail HIGH or LOW an audible alarm will sound The LED s indicating the failed test will be displayed for approximately three 3
4. this requires that they be checked or replaced on every visit to the EPA When ESD footwear is used it should be noted that ESD footwear alone cannot achieve protection but needs to be used in conjunction with a suitable ESD floor EN 61340 5 2 clause 5 2 8 Footwear All wearers shall check that their heel and toe straps meet requirements The check shall be made before entering the EPA EN 61340 5 1 Daily checks clause 9 6 3 Non permanent footwear Packaging 1 Dual Independent Footwear and Wrist Strap Tester 1 Dual Foot Plate 1 Stereo Plug to Stereo Plug Cord 1 Banana Plug to Ring Terminal Cord 1 Certificate of Calibration Installation The resistance limits for footwear and wrist strap tests are controlled by the DIP switches located on the left side of the tester see Figure 2 See the following tables for the DIP switch settings and their corresponding test values Footwear Rresistance DIP switches 1 and 2 control the HIGH test limit HIGH Limit Switch 1 Switch 4 Resistance ON 10 Megohms 1 X 10E7 OFF 35 Megohm 3 5 X 10E7 OFF 100 Megohm 1 X 10E8 ON 1 Gigohm 1 X 10E9 Default Setting i Made in America DIP switches 3 and 4 control the LOW test limit LOW Limit Switch 3 Switch 4 Resistance ON OFF 100 Kilohms 1 X 10E5 OFF ON 1 Megohm 1 X 10E6 ohms Default Setting NOTE At 1 Gigohm high limit resistance a dirty foot plate c
5. ion Test l Insert the Limit Comparator s test plug into the phono jack located on the Dual Foot Plate Il Select the appropriate FAIL LOW setting on the Limit Comparator Press and hold the touch plate of the tester until the test is completed The tester should indiciate a FAIL LOW condition for both feet IV Select the appropriate PASS LOW setting on the Limit Comparator and repeat the test The tester should indiciate a PASS condition for both feet V Select the appropriate PASS HIGH setting on the Limit Comparator and repeat the test The tester should indiciate a PASS condition for both feet VI Select the appropriate FAIL HIGH setting on the Limit Comparator and repeat the test The tester should indiciate a FAIL HIGH condition for both feet Limited Warranty Vermason expressly warrants that for a period of one 1 year from the date of purchase Vermason Dual Independent Footwear and Wrist Strap Testers will be free of defects in material parts and workmanship labour Within the warranty period a unit will be tested repaired or replaced at Vermason s option free of charge Call Customer Service at 0044 0 1462 672005 for a Return Material Authorisation RMA and for proper shipping instructions and address Any unit under warranty should be shipped prepaid to the Vermason factory You should include a copy of your original packing slip invoice or other proof of purchase date Warranty repai
6. ndependent Footwear and Wrist Strap Tester see Figure 4 The Vermason Limit Comparator allows the customer to perform NIST traceable calibration on a number of Vermason Testers including the 222690 and 222700 The Limit Comparator can be used on the shop floor within a few minutes virtually eliminating downtime verifying that the Dual Independent Footwear and Wrist Strap Tester is operating within tolerances Using The 222693 Limit Comparator Wrist Strap Operation Test Insert the Limit Comparator s test plug into the DUAL WIRE phono jack located on the face of the Dual Independent Footwear and Wrist Figure 4 Vermason 222693 Limit Comparator Strap Tester Il Select 1M LOW with the Limit Comparator s rotary switch Press and hold the touch plate of the tester until the test is completed The tester should indiciate a wrist strap FAIL LOW condition IV Select 1M PASS on the Limit Comparator and repeat the test The tester should indiciate a wrist strap PASS condition V Select either the 10M PASS or 35M PASS setting whichever one is appropriate on the Limit Comparator and repeat the test The tester should indiciate a wrist strap PASS condition VI Select either the 10M HIGH or 35M HIGH setting whichever one is appropriate on the Limit Comparator and repeat the test The tester should indiciate a wrist strap FAIL HIGH condition Footwear Operat
7. of the cord into the stereo jack at the back of the foot plate Insert the banana plug end of the Banana Plug to Ring Terminal cord into the ground jack located at the bottom of the tester see Figure 2 Connect the ring terminal end of the cord to earth ground This connection will remove any static charge from the user before the test NOTE Failure to correctly ground the tester may result in damage not covered under warranty Insert the power supply plug into the power jack located on the left side of the tester see Figure 2 Plug the power supply into an appropriate power outlet Wrist Strap Single Wire Jack Left Foot Dual Wire Jack YY Test Push Button 123 1 amp 2 Normally closed Relay 2 amp 3 Normally open 1A 30 VDC Rating Figure 3 Dual Independent Footwear and Wrist Strap Tester features and components Relay Terminal A relay with both normally open and normally closed contacts is included for your convenience Going from left to right the terminal block on the bottom of the tester has terminals for normally closed common and normally open see Figure 3 The relay can be used for opening an electric lock to an ESD sensitive area The maximum contact rating is 1A 30VDC Operation Upon power up the alarm will sound and all of the LEDs for the activated tests will be illuminated The tester is now ready for use Pushing the touch plate on the front panel
8. ould result in a false pass Be sure to keep the foot plate clean when using this setting Wrist Strap Resistance DIP switches 5 and 6 control the HIGH test limit HIGH Limit Resistance Switch 5 Switch 6 OFF OFF Wrist Strap Test Disabled ON OFF 35 Megohm 3 5 X 10E7 Default Europe Setting O 10 Megohm 1 X 10E7 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 cannot be changed by the user UNIT C 4TH DIMENSION FOURTH AVENUE LETCHWORTH HERTS SG6 2TD UK Phone 0044 0 1462 672005 Fax 0044 0 1462 670440 e mail Service Vermason co uk Internet Vermason co uk TB 7535 August 2009 Page 1 of 3 2009 Vermason Audio Adjustment Foot Plate Jack Relay Ground Jack FRONT VIEW DIP Switch Power Jack SIDE VIEW Data Output for SmartLog X3 TOP VIEW Figure 2 Dual Independent Footwear and Wrist Strap Tester side views Installing The Tester And Foot Plate Mount the tester at the desired location using the four mounting holes in the corners of the yellow mounting plate Set the foot plate below the tester Insert one end of the Stereo Plug to Stereo Plug cord into the stereo jack located at the bottom of the tester see Figure 2 Insert the other end
9. rs will take approximately two weeks If your unit is out of warranty Vermason will quote repair charges necessary to bring your unit to factory standards Call Customer Service at 0044 0 1462 672005 for a Return Material Authorisation RMA and proper shipping instructions and address 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 Vermason 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 UNIT C 4TH DIMENSION FOURTH AVENUE LETCHWORTH HERTS SG6 2TD UK Phone 0044 0 1462 672005 Fax 0044 0 1462 670440 e mail Service Vermason co uk Internet Vermason co uk TB 7535 Page 3 of 3 2009 Vermason
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