USER GUIDE TB-9016 Static Sensor Made in the Operation and Maintenance United States of America When any object becomes electrostatically charged, there is an electrostatic field associated with that charge. If an ESDS (ESD sensitive) device is placed in that electrostatic field, a voltage may be induced on the device. If the device is then momentarily grounded, a transfer of charge from the device occurs as a CDM (Charged Device Model) event. If the device is removed from the region of the electrostatic field and grounded again, a second CDM event will occur as charge (of opposite polarity from the first event) is transferred from the device. (Handbook ESD TR20.20 section 2.7.5 Field Induced Discharges) The Static Sensor and its accessories are available as the following item numbers: Item Description 718 Static Sensor 770718 Air Ionizer Test Kit 770719 Conductive Plate and Charger 770009 Air Ionizer Test Kit Carrying Case Packaging 1 Static Sensor 1 9V Alkaline Battery 1 Certificate of Calibration Figure 1. SCS 718 Static Sensor Description The SCS Static Sensor indicates surface voltage and polarity on objects. The meter can measure ranges of 0 to 1.999 kV or 0 to 19.99 kV at a distance of 1 inch with an accuracy of 5% of the displayed value. The automatic zero button allows adjustment to zero with no screws or dials to turn. The hold button allows the user to freeze a displayed measurement for evaluation. A LED range finder helps the operator to place the Static Sensor at the correct distance from the surface being measured. The Static Sensor will automatically turn off after 20 minutes to conserve battery power (9V). The Static Sensor is calibrated with accepted procedures and standards traceable to the National Institute of Standards and Technology. SCS - 926 JR Industrial Drive, Sanford, NC 27332 East: (919) 718-0000 West: (909) 627-9634 Website: StaticControl.com 2020 DESCO INDUSTRIES, INC. TB-9016 Page 1 of 5 March 2020 Employee OwnedFeatures and Components Operation NOTE: The Static Sensor is built in a conductive case. The instrument senses the difference in potential between the case (and the person holding the case / ground connection) and the surface under test. Ensure that the person using the instrument is wearing a wrist strap and grounded to achieve more accurate measurements. Low Battery Indicator C The battery should be replaced when BAT is indicated A D on the display. Always replace the battery with a 9V alkaline or equivalent battery in order to remain CE compliant. B Zeroing the Static Sensor Turn the Static Sensor on by pressing the POWER button. Press the RANGE / ZERO button to set the Static Sensor to the 2 kV (3 decimal places) range. Point the top of the Static Sensor approximately 1 inch away from a grounded metal surface. Use the red LED range guide. The Static Sensor is properly positioned when the projected red bullseyes are centered on top of each other. Press and hold the RANGE / ZERO button until the Static Sensor displays .000. Performing a Measurement Place the Static Sensor 1 inch from the object to be measured. This distance is measured from the front edge of the Static Sensor case to the surface of the object. The Static Sensor now displays a reading (from 0 E to .200 or 2.00) of the electrostatic field in kilovolts per inch. NOTE: The red ranging lights are provided to help place Figure 2. Static Sensor features and components the Static Sensor at the correct distance from the object. The lights are set to produce a concentric red bullseye A. POWER Button: Press to turn the unit ON and OFF. pattern on a flat opaque surface 1 inch from the front edge of the Static Sensor. This can be practiced by B. RANGE / ZERO Button: Press to select the aiming the Static Sensor at a sheet of white paper. measurement range. Press and hold to zero the Static Sensor. The display will indicate 1 or -1 when the Static Sensor is over-ranged. Change the range of the unit if C. Analog Output Jack: A low-voltage signal of the necessary. If the measurement exceeds 20 kV, move the measured voltage is provided at this output. The voltage Static Sensor farther away from the object and multiply is 1/1000th (2 kV range) or 1/10,000 (20 kV range) of the reading by the distance (in inches) away from the the measured voltage. object being measured. The measurement accuracy is D. HOLD Button: Press to freeze the reading on the dependent on a stable ground reference and the 1 inch display. Press again to return to normal measurement measuring distance. It is also dependent on the aspect operation. ratio, relating the size of the object to be measured to the measurement distance. E. Battery Cover: Slide the cover down to open the 9V battery compartment. SCS - 926 JR Industrial Drive, Sanford, NC 27332 East: (919) 718-0000 West: (909) 627-9634 Website: StaticControl.com 2020 DESCO INDUSTRIES, INC. TB-9016 Page 2 of 5 Employee Owned