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3M WRIST STRAP AND FOOTWEAR TESTER
3M WRIST STRAP AND FOOTWEAR TESTER

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3M-740
Product Code: 3M-740
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The 3M Wrist Strap and Footwear Tester 740 is an AC-powered unit designed to be wall-mounted in a production facility for daily testing of employees’ static control wrist straps. Use of the optional 3MShoe Electrode 741 attachment allows the tester to be used as a footwear tester as well. The optional Shoe Electrode 741 is a test plate that connects to the Wrist Strap and Footwear Tester 740. By standing on the shoe electrode, personnel can use the wrist strap and footwear tester to check the operation of static control footwear, heel straps and the like. This electrode, constructed of rugged stainless steel in a molded plastic base, must be ordered separately. Simple to operate, the unit has several useful features and options. Red and green LEDs give a clear “go” or “no go” indication. The user can select any of four different resistance levels, making the tester a versatile instrument to meet varying industry, corporate and global standards. The unit tests the wrist band and cord while they are being worn, and can also test each component independently to isolate an indicated fault. There is also a digital output that can be used to interface with a computer, automatic door lock, alarm or other control device. The wrist strap and footwear tester comes with the base unit, output connector, 3M Dual LockWall-Mounting System and template, cover for the wrist strap plug-in jack and the AC/DC transformer.

740 PROPERTIES
Dimensions                              5.43"H x 7.48"W x 2.09"D
Weight                                     15.75 oz
Power Supply                          27 Vdc transformer, 150 mA (AC/DC adapter supplied) 
                                                6 Ft Wire
Test Voltage                            20 Vdc, ± 1 Volt (open Circuit)
Resistance Ranges                  Lower limit: 750K ohm
Upper Limit Wrist Strap           2, 5, 10 and 35M ohm
Upper Limit Footwear             10, 35, 50, 100M ohm
Accuracy                                 +20%, -0% for 750K ohm lower limit
                                               ±10% for 2M, 5M, 10M, 35M and 50M
                                               ohm ±20% for 100M ohm
Output                                     Open collector at pins 1, 2, 4 and 5
                                                DC return at pin 6. +5 volts at pin 3
Wall Mounting                         SM Dual Lock System

 

SHOE ELECTRODE PROPERTIES  3M-741
Dimenstions                             20"H x 16"W
Weight                                     5 lbs
Construction                            1 mm stainless steel plate and molded plastic base
Other                                       3M adhesive strip prevents unit from sliding while in use
                                               Shoe electrode interconnect cord 6 ft

 

3M-740   3M Wrist Strap and Footwear Tester
3M-741 Shoe Electrode must be ordered separately