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16

Statistics Functions

After the EM400/EM500 accumulates a batch of pulses, the results are displayed as one of four computations:
Average, Minimum, Maximum, and Standard Deviation.

1. While in Statistics Mode, press 

 or 

 until the annunciator for the desired function is steadily

activated.

2. Press 

 to restart a batch for either Manual and Auto Restart functions.

Summary of Contents for ENERGY MAX EM400

Page 1: ...buy your excess underutilized and idle equipment along with credit for buybacks and trade ins Custom engineering so your equipment works exactly as you specify Critical and expedited services Leasing Rentals Demos In stock Ready to ship TAR certified secure asset solutions Expert team I Trust guarantee I 100 satisfaction All trademarks brand names and brands appearing herein are the property of th...

Page 2: ...USER MANUAL EM400 EM500 Single Channel Joulemeter ...

Page 3: ......

Page 4: ...Road Portland OR 97224 Phone 800 366 4340 or 503 620 9069 Fax 503 620 8964 www molectron com 2002 by Molectron Detector Inc All rights reserved No portion of this publication may be reproduced in whole or in part in any form or by any means without permission of the publisher Document Number 0980 0191 ...

Page 5: ...tat Key 2 Indicators 3 Audible Tuning 3 AVG Indicator 3 Battery Indicator 4 DEV Indicator 4 LCD Numerical Display 4 MAX Indicator 4 MIN Indicator 4 TRG Indicator 4 Other Connectors 5 AC Wall Adapter Connector 5 Analog Out Connector 6 Input BNC Connector 6 RS 232 RJ11 Connector 7 Table of Contents ...

Page 6: ...ure 11 Normal Mode 12 J V Selection 12 Range Selection 12 Calibration Set Function 13 Avererage Mode 14 Average Pulse Set Function 14 Range Selection 14 Statistics Mode 15 Statistics Batch Set Function 15 Statistics Functions 16 Remote Operation 17 Serial Port Parameters 17 ADC Data Format 18 Commands 19 Query Firmware Version 19 Query Full Scale Reading 20 ...

Page 7: ...urement 22 Start Data Transmission 23 Stop Data Transmission 23 Compatible Detectors Ranges 24 Frequently Asked Questions 25 Specifications 27 Instrument Specifications 27 Display 27 Ranges 27 Maximum Input Pulse Amplitude 27 Minimum Input Trigger Level 27 Maximum Rep Rate 27 Linearity 27 Accuracy 27 Input Impedance 27 Trigger Level 27 Table of Contents cont d ...

Page 8: ...ud Rate 28 EM500 RS 232 Parity 28 EM500 RS 232 Data Bits 28 EM500 RS 232 Stop Bits 28 Battery Life EM400 28 Battery Life EM500 28 EM500 Battery Recharge Time 29 Battery AUTO OFF timeout 29 Dimensions 29 Weight EM400 29 Weight EM500 29 Factory Default Settings 29 Warranted Characteristics 30 Power 30 Atmospherics 30 Dynamics 30 Emissions 30 Susceptibility 31 ...

Page 9: ...e battery life It supports a wide range of user selected calibration factors and a wide dynamic range of inputs It displays directly in energy units The EM500 features a 3 wire RS232 interface an analog output an audible tuning function and an internal rechargeable battery Both units include an AC adapter which also charges the internal battery of the EM500 The EM400 EM500 has three operating mode...

Page 10: ...ons to select a computation function Average Minimum Maximum or Standard Deviation in Statistics mode or to operate the Audible Tuning Function Press to enter Average mode and to perform averaging operations Press to enter Normal mode and its functions and to switch the reading between Joules and Volts Slide to the right to power up the EM400 EM500 Press to enter Statistics mode and to perform sta...

Page 11: ...ning function Press the and keys simultaneously when the audible tone output is 100 or more to reset at 50 frequency Press the and keys simultaneously when the audible tone output is less than 100 to disable the Audible Tuning function Reminder if the audible tone output is at 100 or more pressing the and keys will restart the function If it is at less than 100 pressing the same keys will disable ...

Page 12: ...gitnumericfield Displays the instrument reading in Joules or Volts in all modes Displays the constant value in Set functions Two characteralphanumericfield Displays the units of measure Displays auxiliary information in Set functions indicates the statistical Maximum is being displayed in Statistics mode indicates the statistical Minimum is being displayed in Statistics mode indicates a valid trig...

Page 13: ...ry of the EM500 to be recharged A replacement adapter if needed should be rated 18 V DC 1 V DC 500 mA The output connector should be 5 1 mm 20 O D and 2 55 mm 0 100 I D Undernormalconditions theEM400 s battery will last 4 hours and the EM500 s internal NI Cad battery will last 6 hours with a recharge time of 14 hours Other Connectors AC Wall Adapter Connector ...

Page 14: ... full scale for the range selected The Analog Output BNC s maximum output is 2 00 Volts Even though the EM500 LCD may exceed its selected full scale under some conditions the Analog Output value will never exceed 2 00 Volts Example The LCD reads 3 47 mJ on the 20 mJ range about 17 percent of full scale The analog output will read 0 347 VDC Located on the right side of the instrument the Input BNC ...

Page 15: ...e instrument The RJ11 connector provides a 3 wire interface with an IBM compatible computer through a standard 25 pin or 9 pin D sub connector In the connector supplied with the EM500 the RTS CTS and DTR DSR jumpers loop the PC s handshaking lines back to the PC to allow 3 wire data transmission these jumpers may not be required for all PC based applications ...

Page 16: ...ith suspected failures If you suspect that this product is damaged have it inspected byqualifiedMolectronservicepersonnel Do not operate this product from a power source that applies more than the voltage specified Do not apply a voltage outside the range specified to any terminal Do not operate this product if its panels are removed Do not operate this product in wet or damp conditions or in an e...

Page 17: ...he EM400 s battery by pressing down on the battery compartment cover located on the back of the instrument Slide it outward away from the center of the instrument The EM500 rechargable battery is not user serviceable Recharge it using the included AC Adapter There are no user serviceable parts to an EM400 except the replaceable battery and there are no user serviceable parts of the EM500 at all ...

Page 18: ...00 366 4340 for a Return Material Authorization number Note Material will not be accepted without a pre assigned RMA number 2 Attach a tag to the instrument indicating the owner s name and address contact person if different thanowner instrumentserialnumberandassignedRMAnumber 3 Pack the instrument in the original packaging If original packaging is not available wrap the instrument with polyethyle...

Page 19: ... Switch ON the EM400 EM500 4 Press to place the instrument in Normal mode Press until the desired units J mJ µJ or V mV µV areshown 5 Unblock the laser beam or start the laser Verify proper beam alignment on the center of the probe surface 6 Adjust the range by pressing or until is activated and a reading in Joules or Volts appears on the LCD If the LCD indicates OL press the button until a valid ...

Page 20: ...e The EM400 EM500 can display Joules J millijoules mJ or microjoules µJ or Volts V millivolts mV or microvolts µV From Normal mode press to shift between Joules and Volts During operations in Normal mode press to select a higher range or to select a lower range Normal Mode J V Selection Range Selection ...

Page 21: ...EM500 must be in Normal mode to enter the CalibrationSetfunction 2 Press and hold until the LCD changes about four seconds to the Calibration Set function 3 Press and to select digits and or to change the values of the selected digits 4 Press to return to Normal mode During the Calibration Set function the EM400 EM500 displays a three digit mantissa and a single digit positive ornegative exponent ...

Page 22: ...ss and hold until the LCD changes about four seconds to the Average Pulse Set function 2 Press or to select digits and or to change the values of the selected digits 3 Press to return to Average mode Example To set the unit to average 20 pulses set the LCD digits to read 20 1 Use any number 2 99 During Average mode operations press to select the next higher range and to select the next lower range...

Page 23: ...e or to select Manual or Auto Restart while in Statistics mode During the Statistics Batch Set function the LCD displays four digits representing the pulses to accumulate while the two character alphanumeric field indicates whether the instrument is set for Manual Restart MR or Auto Restart AR During Auto Restart the LCD shows the results of the previous batch 1 Press and hold until the LCD change...

Page 24: ... the results are displayed as one of four computations Average Minimum Maximum andStandardDeviation 1 While in Statistics Mode press or until the annunciator for the desired function is steadily activated 2 Press to restart a batch for either Manual and Auto Restart functions ...

Page 25: ...es These readings must be scaled by the computer to display JoulesorVolts Only Normal mode functions are accessible from the RS 232 port The EM500 has a fixed baud rate and other parameters Set the computer port to the following parameters for interface with the EM500 Baud Rate 9600 default or 19200 set with special command byte 0xf9 hex 249 dec at 19200 baud Parity None Data Bits 8 StopBits 1 ...

Page 26: ...LSBs of Data Byte Two represent the six LSBs of the ADC counts Valid combined readings are from 0000 to 4096 12 binary bits However the EM500 contains a 12 bit ADC with headroom and footroom yielding typical full scale readings from 1500 to 2500 representing 2000 counts on the display Also the EM500 does not trigger on pulses less than 5 of full scale Therefore the minimum raw ADC readings are abo...

Page 27: ...mputer For example setting the Calibration Factor Rv requires sending the bytes representing the Rv one at a time Each of these auxiliary bytes is acknowledged with an ACK in less than 5 ms However the computer must not send another byte until it receives the ACK Furthermore multibytecommandsequencessmustbeterminatedwithaLFcharacter 33 dec 21 hex ASCII EM500sendsitsfirmwareversion AuxiliarySendByt...

Page 28: ...ytes 32 33 30 37 The raw data reading is 1567 ADC counts see Start Data Transmission Command The reading in Joules Range Full scale Query Full Scale Reading x ADC Count or 2 000 2307 x 1567 1 358 Joules AuxiliarySendBytes none Response Bytes ASCII 4 byte numeric value Typically 1500 to 2500 37 dec 25 hex ASCII AuxiliarySendBytes none Response Bytes Single ASCII char Joules J 4A Volts V 56 36 dec 2...

Page 29: ...E X 62 dec 3E hex ASCII This function does not allow RS232 access to the Average or Statistics modes it only restores the factory setup for theinstrument MeasurementMode Joules Range 2 000 Joules AveragePulses 50 StatisticsPulses 50 StatisticsFunction Displayed StandardDeviation StatisticsReset Auto AuxiliarySendBytes none ResponseBytes none Query Responsivity Restore Default Setup ...

Page 30: ...d Bytes ASCII 2 digit range exponent Example 0 002 range has exponent 3 hex 2D 33 ResponseBytes none 46 dec 2E hex ASCII Auxiliary Send Bytes ASCII 3 digit mantissa with decimal optional ASCII negative exponent sign hex 2D ASCII1 digitexponent RvinformatX XXEXorX XXE X ResponseBytes none 49 dec 31 hex 1 ASCII AuxiliarySendBytes none ResponseBytes none Set Range Set Responsivity Set Volts Measureme...

Page 31: ...ormat NOTE The EM500 display is not updated while RS232 data transmission is enabled Also note that data bytes are transmitted only when the EM500 is receiving input pulses greater than the 5 trigger level 61 dec 3D hex ASCII Any byte sent to the EM500 during data transmission will stop the EM500 from sending data AuxiliarySendBytes none ResponseBytes none Stop Data Transmission ...

Page 32: ...24 Compatible Detectors Ranges ...

Page 33: ...piled application Download EM500 LabVIEW tools from theMolectronwebsite www molectron com forabetterunderstandingofthecommunicationprotocols orlocate an RS 232 FAQ for more detailed information If one or more data points in a Statistical batch are out of range then the entire batch is invalidated and an overrange value reported for all results The EM500 does not respond to remote commands which us...

Page 34: ...ameters Bits per second 19200 Data bits 8 Parity None Stop bits 1 Flowcontrol Hardware 5 While the connection is attempted it may fail exit Hyperterminal When prompted to save the session do so 6 Right click on the resulting Em500 ht file and select Properties 7 UndertheSettingstab chooseEmulation VT52 8 PressOKtoclosethewindow 9 Doubleclicking the EM500 ht will now cleanly connect to an attached ...

Page 35: ...Volt ranges 2mV 20mV 200mV and 20V1 AvailableJoulerangesdependonselectedResponsivity 1 Maximum Input Voltage 9 VDC 9 Volts peak 5 of full scale 500Hz probe dependent 1 1 1 MΩ 5 of full scale 2 99 pulses Display Accuracy Ranges Maximum Input Pulse Amplitude Minimum Input Trigger Level Maximum Rep Rate Linearity Input Impedance Trigger Level Averaging ...

Page 36: ...fault or 19 200 None 8 1 4 hr 6 hr Calibration Factors EM500 Analog Output Output Impedance Data Conversion Digital Resolution EM500 RS 232 Interface EM500 RS 232 Baud Rate EM500 RS 232 Parity EM500 RS 232 Data Bits EM500 RS 232 Stop Bits Battery Life EM400 Alkaline 9 V Battery Life EM500 internal NiCad ...

Page 37: ...efore shipment the attributes of the EM400 EM500 are set as follows MeasurementMode Joules Range 2 000 Joules AveragePulses 50 StatisticsPulses 50 StatisticsFunctionDisplayed StandardDeviation StatisticsReset Auto EM500 Battery Recharge Time Battery AUTO OFF Timeout Dimensions Weight EM400 Weight EM500 Factory Default Settings ...

Page 38: ...0 ft RandomVibration Operating 0 31 g rms from 5 500 Hz 10 minutes each axis Non operating 2 46 g rms from 5 500 Hz 10 minutes each axis Meetsorexceedstherequirementsofthefollowingstandards EN 50081 1 EuropeanCommunityRequirements EN 55011 RadiatedEmissionsClassA EN 55011 ConductedEmissionsClassA 3 Tomaintainemissionrequirementswhenconnectingtotheserialinterface useonly high quality double shielde...

Page 39: ...ityRequirements IEC 802 2 ElectrostaticDischarge PerformanceCriteriaB IEC 801 3 RadiatedSusceptibility3V meterfrom27MHz to 500MHz unmodulated PerformanceCriteria Maximummeterdeviation 3 ofreading Maximum LCD reading 3 of reading IEC 801 4 ElectricalFastTransient Burst Susceptibility ...

Page 40: ...quipment Have surplus equipment taking up shelf space We ll give it a new home Learn more Visit us at artisantg com for more info on price quotes drivers technical specifications manuals and documentation Artisan Scientific Corporation dba Artisan Technology Group is not an affiliate representative or authorized distributor for any manufacturer listed herein We re here to make your life easier How...

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