4.0 Specifications
Base unit:
158 x 95 x 33 mm (6.25 x 3.75 x 1.25 inches)
Weight:
200 g (7 ounces) without battery
Battery:
9V alkaline type, e.g. IEC 6F22
Tolerance:
750 kΩ + 20%/-0%, 10 MΩ ± 10%
Measurement Voltage: DC (19±1) V (open circuit)
Power Supply (not included): DC 9V, regulated, 75mA (50Hz)
5.0How to Use
5.1Insert 9V battery and make sure the ON/OFF
switch at the upper left side on the unit is in the ON position. The OFF position avoids discharge of the battery if the metal contact plate is accidentally depressed while the unit is not in use. The unit is then ready for operation. The backup of the battery can be achieved by using an AC Power Supply. In that case, connect the AC power supply to the jack at the base of the unit. Plug the power supply into an AC 230V outlet.
5.2Fit the plastic cover onto the wrist strap
Wrist Strap Test
5.3Put the wrist band on with ground cord attached, and insert the ground cord plug into the wrist strap
5.4Depress the metal contact plate and hold it.
5.5One of the indicator LEDs will illuminate. An illuminated green LED indicates that the wrist strap performs within the resistance range of 750 kΩ to 10 MΩ. If a "red" condition is indicated, it is advisable to check the ground cord individually for its resistance.
For checking the resistance range of the ground cord, leave the plug end of the ground cord attached to the tester and unsnap the cord from the wrist band. Place the metal side of the ground cord snap against the metal plate of the tester and depress until one of the LEDs is illuminated. If the red LED is illuminated, the ground cord is outside the resistance range and should be replaced. If the green LED illuminates, the ground cord can be used, but the wrist band may have to be replaced.
Note: In some cases, high contact resistance between the person's skin and wrist band will cause the tester to show a fail/red LED condition. This resistance may be caused by dry skin or hair in the wrist area. If these possibilities do not match to the operator, the wrist band should be replaced.
5.6If the "battery" LED illuminates at any time, replace the battery.
Wall Mounting
5.7The enclosed 3M™ Dual Lock™ adhesion discs shall be screwed on the wall using the attached template approximately 1500 mm (5 feet) parallel off the floor. Drill three holes of 5 mm (0.2 in) diameter at marked location.
5.8The enclosed 3M Dual Lock adhesion strips must be adhered to the rear of the 3M™ Wrist Strap Tester 746 parallel to the bottom edge and below the battery compartment.
Note: Make sure the area on the unit in which the Dual Lock adhesion strips are placed is free of dust and dirt. Press the tester firmly against the discs for fixing on the wall.
5.9For removal, lift the tester 746 at the two top corners with both hands.
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