PDT-740B STATIC DECAY TIMER
Contents
1. Response Timing Range Timing Setpoints Accuracy Power Battery Life Dimensions Weight Rev B February 2005 OFF ON Cut Off Voltage 10 50 and 100 Volts Selects Voltage to stop timing Green LED Decay Cycle Ready gt 1kV CPM voltage gt 1 000 volts Red LED Timing in Progress CPM voltage decay timing activated LOBAT displayed when battery voltage lt 6 0 volts Liquid Crystal Display LCD displays elapsed decay time from 1 000 volts to selected Cut Off voltage in seconds and tenths of a second 00 0 Automatically senses Positive amp Negative voltage references Automatically Resets Timer and Display to 00 0 when CPM voltage gt 1kV Reset indicated when Green LED Decay Cycle Ready LED is ON Approximately 200 milliseconds in combination with CPM and PFM 711A From 0 2 to 159 9 seconds Reset when voltage input 100mv 2mv 1 000 Field Meter Volts 20V Cut Off Voltage 100 V 10mv 0 2mv 100 Field Meter Volts 2V Cut Off Voltage 50 V 5mv 2mv 50 Field Meter Volts 2V Cut Off Voltage 10 V 1mv 0 2mv 10 Field Meter Volts 2V Typically lt 5 One 1 standard 9 volt battery PROCELL Eveready 216 NEDA 1604 JIS 006P IEC 6F22 Eveready 216 gt 40 hours typical 4 50 inches x 2 75 inches x 1 0 inches 6 5 oz 184 gm 13 PDT 740B Static Decay Timer NOTES 14 Rev B February 2005 Specifications are subject to change without notice All Prostat trademarks and trade2. Field Meter and PDT 740B Static Decay Timer 1 Insert one cable mini phono plug into the PFM 711A Analog Output receptacle located on the left front panel of the instrument 2 Insert the opposite end of the cable into the PDT 740B Analog Input receptacle located on the left front panel of the instrument 6 Rev B February 2005 PDT 740B Static Decay Timer C Slide the PFM 711A power switch to kV inch to energize the field meter D Slide the PDT 740B ON OFF switch to ON E The system is ready for use Vill Normal Operation for lonization Static Decay Measurements Overview The dual phono plug cable assembly is connected to the analog output of the PFM 711A Field Meter and the Analog Input of the PDT 740B Decay Timer With the Charge Plate Assembly CPM installed on the Field Meter the Charging Source is used to apply greater than 1 000 volts to the CPM To measure an ionizers decay time performance proceed as follows A While wearing a properly grounded wrist strap grasp the PFM 711A CPM 720 assembly in one hand making sure your hand contacts the grounding snap on the back ofthe PFM 711A Field Me ter 1 Place the PFM 711A Field Meter power switch in the kV inch position and ZERO the instru ment 2 Note Your hand should not make contact with nor obstruct the CPM 720 Charge Plate Assem bly in any way Rev B February 2005 7 PDT 740B Static Decay Timer B Turn ON PDT 740B Timer and select 100 Cu
3. PDT 740B Static Decay Timer automatically 1 Resets its display to ZERO 00 0 2 Turns ON its Green LED which provides Decay Cycle Ready indication Rev B February 2005 PDT 740B Static Decay Timer G Lower the PGB 745 Electrode onto the specimen under test H Asthe electrode dissipates its charge through or across the test specimen voltage will drop below 1 000 volts at which time 1 2 The Green LED Decay Cycle Ready automatically goes OFF The PDT 740B LCD display begins timing function in seconds The PDT 740B Red LED Timing in Progress automatically comes ON and stays ON until voltage decays to set cutoff 2 volts When CPM plate voltage reaches cutoff volts or less the timer stops and the Red Timing in Progress LED goes OFF I Repeat the above procedure for additional measurements J As an option use two 2 PGB 745 Electrodes as shown below Rev B February 2005 11 PDT 740B Static Decay Timer 1 Place the specimen to be tested on an insulated test bed 2 Place the second electrode on the test specimen and attached to ground 3 The first electrode is connected and used as described above 4 Inthis case the charge dissipates from the first electrode moves across the material to the second grounded electrode 12 Rev B February 2005 PDT 740B Static Decay Timer PDT 740B Static Decay Timer Specifications Controls Indicators Display Polarity Zero amp Reset
4. names are the property of Prostat Corporation All other trademarks and trade names are the property of their respective companies WA CARRIED BY PROFESSIONALS PROFESSIONAL STATIC CONTROL PRODUCTS Prostat Corporation Corporate Headquarters e 1072 Tower Lane Bensenville IL 60106 630 238 8883 Fax 630 238 9717 1 855 STATIC1 e www prostatcorp com
5. properly B Measuring voltages which exceed the limits of this instrument i e greater than 1 500 electrostatic volts may damage it and expose the operator to a shock hazard Always observe instrument volt age limits as stated 4 Rev B February 2005 PDT 740B Static Decay Timer C As with other electronic devices do not use or operate in wet conditions or in hazardous combus tible environments IV Function The PDT 740B is designed specifically to measure decay time of ionizers and materials in seconds and tenths of a second from 1 000 to 100 50 or 10 volts It is used with the Prostat PFM 711A Field Meter and CPM 720 Charge Plate Monitor Assembly or an equivalent instrument having an analog output of 1 volt equaling 10 000 electrostatic volts This easy to use instrument comes equipped with LCD display an analog input for connection to the field meter ON OFF Power Switch and a VOLTAGE CUT OFF SELECTOR 10 50 or 100 volts switch V Measurement Response Time The PDT 740B response is 0 2 seconds at 100 volt CUT OFF and 0 3 seconds at 50 and 10 volt CUT OFF VI Battery Installation amp Maintenance A Battery Replacement 1 Power is supplied by a 9 volt transistor battery that will provide greater than 40 hours of operation without replacement 2 Replace the battery periodically or when the GREEN RESET indicator will not reset in normal operations NOTE Dead battery voltage is approximately 7 2 to 7 5 volts 3
6. 20 Plate and the other end connected to a Prostat PGB 745 Electrode The PCS 730 Charging Source is used to apply greater than 1 000 volts to the CPM which is shared with the PGB 745 Electrode To measure material s decay time performance refer to the figures below and proceed as described Rev B February 2005 PDT 740B Static Decay Timer A D E F 10 Setup PFM 711A Field Meter PCS 720 Charge Plate and PDT 740B Static Decay Timer as described and illustrated above Place the material to be tested on a grounded steel test bed Connect the PGB 745 Static Decay Electrode to the CPM 720 Charge Plate using a high resistance lead and suspend the electrode above the specimen to be tested While wearing a properly grounded wrist strap and the PFM 711A CPM 720 is connected to ground 1 Place the PFM 711A Field Meter power switch in the kV inch position and ZERO the instru ment 2 Note that the PFM 711A Field Meter and CPM 720 Charge Plate Assembly may lay on a grounded conductive worksurface or be attached to ground through the PFM 711A ground snap Nothing should be in contact with the upper CPM 720 plate except the high resistance lead Turn ON PDT 740B Timer and select Cut Off Voltage With Charging Source properly grounded charge the CPM 720 Plate using the PCS 730 1KV Charging Source to gt 1 000 volts This also charges the PGB 745 Electrode to the same voltage When voltage exceeds 1 000 volts the
7. STATIC DECAY TIMER PDT 740B User Manual Decay Cycle Ready gt 1kV Decay Time in Second from 1kV to Cut off V O Analog Input Voltage PDT 740B Static Decay Timer REPRO STAT RATIO EJPROSTAT Table of Contents PROSTAT PDT 740B STATIC DECAY TIMER Dr VI Battery Installation amp Maintenance VII Connecting the PDT 740B to PFM 711A Fieldmeter X Suggestion A for Material Static Decay Measurements General Specifications VIII Normal Operation for lonization Static Decay Measurements 2011 by Prostat Corporation All rights reserved Printed in the United States of America No part of this manual may be used or reproduced in any manner whatsoever without written permission For information contact Prostat Corporation 1072 Tower Lane Bensenville IL 60106 USA Prostat is the registered trademark of Prostat Corporation PDT 740B Static Decay Timer NOTE Before using this or any other electronic piece of equipment carefully read the instruction manual completely I Introduction The PDT 740B Static Decay Timer is typical of Prostat s innovative technology and support of Professional ESD Control Managers and Auditors This unique accessory is designed to measure the decay time of ionizers from 1 000 volts to less than 100 volts in accordance with ESD Association s lonization Standard ANSI ESD STM3 1 and measure material decay time to less than 50 volts and less tha
8. Unit should be OFF when replacing battery 4 To replace the battery a Remove the cover from the back of the instrument b Remove the battery from the case c Connect a new battery to terminals and insert it into the battery compartment d Replace the battery cover by sliding it carefully in the grooves provided Do not over force the cover on Rev B February 2005 5 PDT 740B Static Decay Timer If the cover does not re install easily remove the battery and reinsert for a better fit Be sure wires do not hamper closing the battery cover e The PDT 740B is now ready for use B Storage amp Cleaning 1 The unit should be stored in clean dirt free conditions at normal room temperature and hu midity The ideal storage environment is within a Prostat designed case or kit 2 Simply maintain the outer surface and display by wiping with a non abrasive low linting cloth Decay Cycle Timing in Ready gt 1kV Progress GREEN LED RED LED TIMING READY LIGHT IN PROGRESS Decay Time in Seconds from 1kV to Cut off V ANALOG INPUT OC Analog JACK ae Cutoff 100V 10V 50V ON OFF SWITCH Voltage PDT 740B CUT OFF VOLTAGE A SELECTOR SWITCH Static Decay Timer Bar 23 TAT VII Connecting the PDT 740B to PFM 711A Fieldmeter A Mount the CPM 720 Charge Plate Assembly onto the PFM 711A in accordance with their manual instructions B With both instruments power switch OFF connect the analog cable between the PFM 711A
9. n 10 volts Properly used the PDT 740B provides decay time measurements for evaluating ionizers packaging materials foot wear personnel grounding production aids some equipment and many other ESD control products The PDT 740B Static Decay Timer is used with Prostat s precision portable Charge Plate Monitor kit com ponents including the PFM 711A Field Meter CPM 720A Charge Plate Assembly and PCS 730 1kV Charg ing Source For evaluating materials and other products additional decay measurement accessories e g PGB 745 Decay Electrode or PRF 911 Concentric Ring fixtures are recommended Il Before using the PDT 740B Static Decay Timer A Examine the instrument for damage contamination excessive dirt grease etc and defects If any abnormal conditions exist do not attempt to make any measurements B Basic contents of the PDT 740B package include 1 PDT 740B Instrument 2 One 9 volt battery 3 40inch tip to tip analog cable equipped with two 2 mini phono jacks 4 Certificate of Calibration 5 Available options include a Prostat PGB 745 Static Decay Electrodes b PRF 911 Concentric Ring Fixture and PTB 920 Dual Test Bed c PTB 915 3x5 5 inch insulated test bed and 3x6 inch stainless steel test bed Ill Safety The following safety information must be observed to insure maximum personal safety during the opera tion of this meter A DO NOT use the instrument if it appears damaged or if you suspect it is not operating
10. t Off Voltage 1 C Assuming you are auditing a desk top blower position the CPM 720 Charge Plate in the ionizers air flow approxi mately 12 inches from air output grid D Asthe ionizer neutralizes CPM voltage the field meter voltage will drop below 1 000 volts at which time 1 2 With Charging Source properly grounded and held in your other hand charge the CPM 720 Plate using the PCS 730 1KV Charging Source to gt 1 000 volts When voltage exceeds 1 000 volts the PDT 740B Static Decay Timer automatically Resets its display to ZERO 00 0 Turns ON its Green LED which provides Decay Cycle Ready indication The Green LED Decay Cycle Ready automatically goes OFF The PDT 740B LCD display begins timing function in seconds The PDT 740B Red LED Timing in Progress automatically comes ON and stays ON until voltage decays to 100 2 volts When CPM plate voltage reaches 100 volts or less the timer stops and the Red Timing in Prog ress LED goes OFF Rev B February 2005 PDT 740B Static Decay Timer E Repeat the above procedure for additional measurements IX Suggestion A for Material Static Decay Measurements Overview The dual phono plug input cable assembly is connected to the analog output of the PFM 711A Field Me ter and the Analog Input of the PDT 740B Decay Timer The Charge Plate Assembly CPM 720 is installed on the Field Meter One end of a high resistance lead is connected to the CPM 7
Download Pdf Manuals
Related Search