USER GUIDE TB-9013 724 Workstation Monitor Installation, Operation and Maintenance Made in the United States of America The following accessories are available for the 724 Workstation Monitor: Item Description 770065 Verification Tester 724P Power Adapter, 120VAC Input, 25VDC Output, North America Plug 724-PSEU Power Adapter, 100-240VAC Input, 24VDC Output, UK & Euro Plugs Figure 1. SCS 724 Workstation Monitor 732 Dual Operator Remote 733 Operator Remote Description 770037 Replacement Terminal Block, Pack of 5 The SCS 724 Workstation Monitor continuously monitors the path-to-ground integrity of two operators 770735 Replacement Nylon Plug for 733 and one conductive or dissipative worksurface. It has Operator Remote, Pack of 20 been designed and tested for use with SCS Dual-Wire 3057 Standby Jack Wrist Straps and Worksurface Mats. If the equipment is used in a manner not specified in these instructions, the 2389 Mat Interconnect Cord, 10 protection provided by the equipment may be impaired. 2380D Mat Monitor Cord, with Diode, 6 Use in any other application has not been evaluated by SCS and may lead to an unsafe condition. Packaging The SCS 724 Workstation Monitor meets 724 Workstation Monitor, North America the requirements of ANSI/ESD S20.20 and 1 724 Workstation Monitor recommendations of ESD Handbook ESD TR20.20 1 732 Dual Operator Remote which includes if the products that are being produced 1 Dual Operator Remote Cable are of such value that knowledge of a continuous, 1 Power Adapter, North America reliable ground is needed, and then continuous 1 Monitor Ground Cord monitoring should be considered or even required. 1 2380D Mat Monitor Cord The 724 Workstation Monitor is available in three 1 Two-Wire Terminal Block models: 2 Long Mounting Screws 2 Short Mounting Screws Item Description 2 Cable Tie Mounts 2 Zip Ties 724 724 Workstation Monitor, North America 1 Certificate of Calibration Power Adapter 724MO 724 Workstation Monitor, No Power Adapter Figure 2. SCS 724 Workstation Monitor packaging con- tents SCS - 926 JR Industrial Drive, Sanford, NC 27332 East: (919) 718-0000 West: (909) 627-9634 Website: StaticControl.com 2021 DESCO INDUSTRIES INC TB-9013 Page 1 of 8 September 2021 Employee Owned724MO Workstation Monitor, No Power Adapter Features and Components 1 724 Workstation Monitor 1 732 Dual Operator Remote 1 Dual Operator Remote Cable 1 Monitor Ground Cord 1 2380D Mat Monitor Cord 1 Two-Wire Terminal Block 2 Long Mounting Screws 2 Short Mounting Screws 2 Cable Tie Mounts 2 Zip Ties 1 Certificate of Calibration A B C D E F G H 724K-WM11 Workstation Monitor Kit Figure 3. SCS 724 Workstation Monitor features and components 1 724 Workstation Monitor 1 732 Dual Operator Remote 1 Dual Operator Remote Cable A. Operator Remote Jack 1: Connect the dual-wire 1 Power Adapter, North America wrist cord of operator 1 here to monitor their 1 Monitor Ground Cord connection to ground. 1 2380D Mat Monitor Cord B. Operator Remote Jack 2: Connect the dual-wire 1 Two-Wire Terminal Block wrist cord of operator 2 here to monitor their 2 Long Mounting Screws connection to ground. 2 Short Mounting Screws 2 Cable Tie Mounts C. Operator 1 Pass LED: Illuminates green when 2 Zip Ties operator 1 is properly grounded. 1 2368 Elastic Dual-Wire Wristband D. Operator 2 Pass LED: Illuminates green when 1 2360 Dual-Wire Wrist Cord operator 2 is properly grounded. 1 8811 Worksurface Mat Kit 1 Certificate of Calibration E. Operator Fail High LED: Illuminates red when either operator 1 or 2 fail high. The buzzer will Theory of Operation sound continuously when operator 1 is at fault, and it will sound intermittently when operator 2 is at The SCS 724 Workstation Monitor is designed to fault. monitor the operation of the wrist strap grounding systems of two operators. To accomplish this, it uses F. Operator Fail Low LED: Flashes yellow when either a DC current source to measure a loop electrical operator 1 or 2 fail low. resistance. The system uses a special wristband and G. Worksurface Mat Fail LED: Illuminates red and wrist cord that contain two independent elements. alarm sounds when the worksurface mat is not The 724 Workstation Monitor employs two selectable properly grounded. test voltages (9 and 16 volts) and resistance limits (10 Megohms and 35 Megohms). It also monitors the H. Operator Test Limit and Test Voltage Switches: grounding of one worksurface mat. The Workstation The operator test limits may be set to either 10 Monitor contains a current-limiting resistor. Resistance is megohms or 35 megohms, and the operator test monitored as the test voltage passes through one side voltage may be set to either 9V or 16V. The of the wristband, through the skin of the wearer under additional ranges have been added to accommodate the band, through the second side of the wristband, global electrical static discharge requirements. through the second conductor of the wrist cord that Selection of the operating parameters are left up to contains a current-limiting resistor, and finally back to the users discretion. the monitor. NOTE: There is no power switch or power indication LED. LEDs will illuminate once a wrist strap is connected to the operator remote. Figure 4. Operator test limit and test voltage switches located on the right-side of the monitor SCS - 926 JR Industrial Drive, Sanford, NC 27332 East: (919) 718-0000 West: (909) 627-9634 Website: StaticControl.com 2021 DESCO INDUSTRIES INC TB-9013 Page 2 of 8 Employee Owned