211, 212 & XL Versions User Manual
Contents
1. Static Meter Figure 3 2 1 Field calibration set up Place the Static Meter on the support and locate it exactly 1 25 4mm from the metal plate Turn on the Static Meter and adjust the ZERO if necessary Turn on the calibrated power supply The Meter should read the applied voltage 5 for the Model 212 For the Model 211 the correct indicator should light Small adjustments of the Meter distance from the plate will change the reading A significant difference in readings indicates the Static Meter is out of calibration and it should be returned to ETS for repair and or recalibration 4 0 5 0 Model 205C and 205C x10 Charged Plate Detectors These charged plate detectors attach to the front of the Model 211 and 212 Static Meter The standard Model 205C along with the optional 6 x6 Detector Plate and shown in Figure 4 0 1a increases the sensitivity of the measurement system by a factor of 10 and is designed for low voltage measurements up to 2kV Resolution is 1V The Model 205C x10 shown in Figure 4 0 1b decreases the sensitivity of the measurement system by a factor of 10 It is designed for high voltage measurements up to 20 kV Resolution is 100V a Model 205C b Model 205C 10 Figure 4 0 1 Charged Plate Adapters WARRANTY Electro Tech Systems Inc warrants its equipment accessories and parts of its manufacture to be and remain free from defects in material and workmanship for a period of one 1 year from da2. to 1 kV 2 4 W x 4 2 L x 1 3 D 61x107x33mm 5 oz 14 2g with battery Environmental Operates at 0 50 C and 0 85 RH non condensing Accuracy unaffected by air ionization 2 3 XL Versions Refer to Sections 2 1 and 2 2 for the appropriate meter specifications 2 4 W x 4 2 L x 1 3 D 61x107x33mm 2 LX1 Wx1 H 51x25x25mm Adjustment angle 0 90 Continuously adjustable from 22 36 560 920mm Weight 1 33 lbs 605g 9V alkaline battery Optional 9V universal power module available Charged Plate Custom design available Adapter NOTE The chopper stabilized sensor that is used in most static meters locators is prone to shock Extreme care must be taken in handling and transporting these instruments Keep in supplied case when not in use 3 0 CONTROLS Sch 2 4 2 5 The Meters have two switches one for ON OFF and one Tor MEASURE HOLD plus a ZERO adjust knob The pushbutton is two position Pressing the button puts it into the lower MEASURE position Releasing the button activates the HOLD function The ZERO adjust knob is turned to the left or right to change the zero setting of the display Turning Meter ON and OFF Slide the switch to the ON position The Meter will turn on To turn the Meter off slide the switch to the OFF position The Meter will now be off Battery Check After turning on power to the Meter check the display and make sure that the low battery symbol is NOT li
3. to produce a concentric ring RED BULLSEYE pattern on a flat opaque surface 1 inch 25mm from the front edge of the Meter This can be checked by aiming the Meter at a sheet of white paper 4 2 lf the numeral 1 appears on the left side of the Model 212 display the Meter s range of 20 kV per inch has been exceeded When this occurs move the Meter farther away from the object and multiply the reading by the distance away from the object being measured For example If the Meter is 2 51mm from a surface with a 30kV charge the display will indicate 15kV The measurement accuracy is dependent on a stable ground reference and the measuring distance plus the aspect ratio that relates the size of the object to be measured to the measurement distance NOTE This aspect ratio should be at least 6 1 for best accuracy Le the Surface should be at least a 6 152mm square when measuring at a 1 25mm distance Accurate measurements may be made at other measurement distances by scaling the meter range and observing the proper aspect ratio For example at a measurement distance of 3 76mm multiply the Model 212 meter reading by 3 to give a range of O to 60 kilovolts For accuracy the object being measured at this distance should be at least 18 457mm square Measuring the charge on an object smaller than the recommended aspect ration will result in lower reading on the Meter 4 1 2 HOLDING LAST READING With the Meter p
4. STATIC METERS Models 211 amp 212 SURVEYORSTAT Models 211XL amp 212XL l i I i Li U I Operating Manual 5 09 electro tech systems INC www electrotechsystems com 3101 Mt Carmel Avenue Glenside PA 19038 Tel 215 887 2196 Fax 215 887 0131 1 0 GENERAL DESCRIPTION The Model 211 and 212 Static Meters shown in Figures 1 0 1a and b are accurate compact electrostatic field meters used for locating and measuring static charge potentials They are functionally the same except the Model 211 utilizes a 10 segment LED bar graph display that is best suited for those measurements where an easy to read indication of the static charge is desired The Model 212 utilizes a 3 2 digit LCD digital display that provides maximum measurement accuracy Their small size makes them handy and easy to use STATIC METER ee e a Model 211 b Model 212 Figure 1 0 1 Static Meters The XL version shown in Figure 1 0 2 incorporates a separate sensor mounted on the end of an adjustable aluminum arm for taking measurements at hard to reach locations The XL meter and sensor can be supplied without the extender arm for fixed remote mounting as an option Figure 1 0 2 Model 212 Suveyorstat The Meters feature both MEASURE and HOLD modes that allow measurements to be made in locations that are difficult to reach or see Ranging lights incorporated into the Models 211 and 212 assure accurate and repeatable meas
5. igure 4 2 1 Place the sensor so that it is 1 inch 25mm from the surface being measured and the arm is at some angle such as 30 from the surface This will reduce the possibly of the Surveyorstat making contact with the web Figure 4 2 1 Surveyorstat Sensor assembly 4 If the meter reads over scale move it back to 2 5 1 cm The calibration will then be 40 kV full scale for the Model 212 Meter and 2 20 kV for the Model 211 Meter double the reading on the meter scale Moving the Meter back to 3 7 6 cm triples the reading etc 5 With the MEASURE HOLD button up red LED off take a measurement Depress the button to HOLD the reading red LED on Remove the unit from the area and record the meter reading Other Measurements To make a measurement on any other object follow the normal guidelines for measuring static fields The Surveyorstat just makes it easier to reach distant and hard to access places CAUTION The sensor used in all chopper stabilized static meters are prone to shock Exercise care when making measurements handling or storing the Static Meters and Surveyorstat Separate Sensor Configuration When configured with only the sensor probe and meter unit without the extender arm the same operating procedure described above is used The sensor probe has both a 4 20 tapped hole where it attaches to the Surveyorstat pivot mechanism and a pair of 6 32 tapped holes on the side Either configuration can be
6. ositioned 1 inch 25mm from the object being measured press the MEASURE HOLD pushbutton so that it releases to the upper or HOLD position This will freeze the reading from the object on the display and allows the operator to move the Meter where it may be more easily read or saved for later reference In the HOLD position the red LED will light The analog output signal is also held NOTE In the HOLD position the bullseye ranging lights will be off When the pushbutton is returned to the MEASURE position the bullseye will light XL Measurements The Surveyorstat is designed specifically to measure static charges on moving webs or hard to reach locations CAUTION When taking measurements around moving machinery extreme care must be taken to ensure the sensor probe does not interfere or get caught in the process The sensor used in most static meters is very fragile and sensitive to mechanical shock Dropping or hitting a hard object could damage to the sensor 4 2 1 Moving Web To make a measurement on a moving web proceed as follows 1 Determine the surface to be measured NOTE The measurement must performed be in free space not backed by a metal surface 4 2 2 4 2 3 2 Adjust the length of the extender arm by loosening the knurled ring extend the arm to the desired length and then retighten the ring 3 Adjust the angle of the sensor probe using the lever on the pivot to loosen and tighten the assembly as shown in F
7. s or their performance either quantitatively or qualitatively or as to the products which it may produce and the buyer is expected to expressly waive rights to any warranty other than that stated herein ETS must be notified before any equipment is returned for repair ETS will issue an RMA Return Material Authorization number for return of equipment Equipment should be shipped prepaid and insured in adequate packaging The RMA number description of the problem along with the contact name and telephone number must be included in formal paperwork and enclosed with the instrument Round trip freight and related charges are the owner s responsibility 5 09
8. t If the battery symbol appears replace the battery as described below before use Zeroing The Meter Turn on the Meter with the ON OFF slide switch Press the pushbutton down so that it is in the lower or MEASURE position Hold the Meter in one hand away from any static generation object or machine and cover the front of the Meter with the other hand This essentially shields the sensor from external fields If the display does not read 0 00 adjust the ZERO knob until the display reads 0 00 Once set the zero should not have to be reset unless the control has moved Important The Model 212 is housed in a conductive case that provides the ground reference for the measuring circuit For accurate measurement it is necessary that the person holding the Meter is discharged by touching ground or that the Meter is grounded using the supplied ground cord connected to the ground snap on the rear of the case 4 0 MAKING A MEASUREMENT 4 1 Model 211 212 Static Meters Hold the Meter 1 inch 25mm from the object to be measured This distance is measured from the front edge of the Meter case to the surface of the object The Meter will display a reading from 0 1 10kV for the Model 211 or O to 19 99kV for the Model 212 of the electrostatic field in kilovolts per inch NOTE In the MEASURE position the RANGING LIGHTS are on These lights help place the Meter at the correct distance from the object The lights are factory adjusted
9. te of invoice ETS will at it s discretion either replace or repair without charge FOR Glenside similar equipment or a similar part to replace any equipment or part of its manufacture that within the above stated time is proved to have been defective at the time it was sold All equipment claimed defective must be returned properly identified to the Seller or presented to one of its agents for inspection This warranty only applies to equipment operated in accordance with Seller s operating instructions Seller s warranty with respect to those parts of the equipment that are purchased from other manufacturers shall be subject only to that manufacturer s warranty The Seller s liability hereunder is expressly limited to repairing or replacing any parts of the equipment manufactured by the manufacturer and found to have been defective The Seller shall not be liable for damage resulting or claimed to result from any cause whatsoever This warranty becomes null and void should the equipment or any part thereof be abused or modified by the customer of if used in any application other than that for which it was intended This warranty to replace or repair is the only warranty either expressed or implied or provided by law It is in lieu of all other warranties The Seller denies any other promise guarantee or warranty with respect to the equipment or accessories In particular as to its or their suitability for the purposes of the buyer or it
10. urements when measuring flat surfaces A conductive case plus a separate ground snap provides grounding for accurate measurement An analog signal output provides an output corresponding to the meter display An output cable with 2 5mm jack and flying leads is available from ETS The chopper stabilized sensor allows the instrument to make accurate measurements in areas using air ionization Optional Charged Plate Adapters are also available for both the Model 211 and 212 J 2 0 SPECIFICATIONS 2 1 Model 211 10 segment multicolor LED bargraph in analog meter arc format Automatic polarity HOLD and low battery BAT indicators 0 to 1kV 0 10kV at a distance of 1 inch 25mm Higher voltages may be measured at distances greater than 1 inch Refer to Section 5 OPERATION 10 ON OFF slide switch MEASURE HOLD pushbutton latching standard momentary optional ZERO knob Environmental Operates at 0 50 C and 0 85 RH non condensing Accuracy unaffected by air ionization 2 2 Model 212 Display LCD 3 digit 0 375 digit height Automatic polarity HOLD and low battery BAT indicators Range 0 to 19 99 kV at a distance of 1 inch 25mm Higher voltages may be measured at distances greater than 1 inch Refer to Section 5 OPERATION Controls ON OFF slide switch MEASURE HOLD pushbutton latching standard momentary optional ZERO knob 2 5mm subminiature jack 10mV corresponds
11. used to mount it at the appropriate distance from the surface being measured If any spacing other than the calibrated 1 distance is used then the system should be calibrated to the prevailing installation The length of the threaded stud or screw must be no more than 1 8 3mm 3 0 MAINTENANCE The Meters are factory calibrated and no maintenance is required If for any reason the Meter is not working correctly contact ETS at 215 887 2196 ext 220 for assistance NOTE There are no user serviceable parts Any unauthorized service will void the warranty and result in additional repair charges 3 1 3 2 BATTERY REPLACEMENT The Model 212 operates from a standard 9 VDC alkaline battery Battery life is in excess of 30 hours under normal use When the battery voltage drops below 6 7 volts a battery symbol will appear in the display To change the battery slide the battery cover down at the back of the Meter and remove the battery from the battery clip Replace the battery with a fresh one and reinstall the battery cover The battery should be removed from the Meter if it is to be stored for an extended period of time Field Calibration The calibration of the Static Meters can be checked using the set up shown in Figure 3 2 1 A calibrated high voltage power supply such as the ETS Model 208B 1 1 kV min and a minimum 6x6 152x152mm metal plate are required A 12x12 805x305mm is preferred Metal Plate Insulator
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