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1. PM Digital responds to commands from the host computer For a detailed description of all the software commands that the PM Digital can process see Host Interface on page 11 The PM Digital does not use either hardware or soft ware handshaking To allow compatibility with RS 232 controllers which do use hardware handshaking such as most PCs the DSR pin is jumpered to DTR and the RTS pin is jumpered to CTS This tells the host that the PM Digital is always ready to receive and transmit The pinout matches the IBM PC AT I DCD not connected 2 Rx 3 Tx 4 DTR 5 GND 6 DSR 7 RTS Sensor Connector LED Indic ators Operation 8 CTS 9 RI not connected If your PC has a 9 pin RS 232 connector then a straight through cable is required pin 1 on male end to pin 1 on female end etc If your computer has a 25 pin RS 232 connector the cable needs to have the following connections PM Digital 9 pin male 2345678 PC 25 pin female 32207645 Most RS 232 cables with the correct connectors on the ends will be wired correctly but there are numerous other possible configurations This is a 25 pin D connector that provides a smart interface to the PowerMax series of sensors During factory calibration of the sensor head a memory chip inside the connector is programmed with information that specifies the sensor responsivity max power rating wavelength correction data for the absorber and other data In additio
2. K K K K K K K K K K K K K K K K K K K K Extract Error Flag bolError IngByte0 And amp H80 Extract range IngRange IngByte0 And amp H78 8 Extract sign mult 0 1 and I 1 IngSign IngByteO And amp H4 2 1 1 Extract unsigned reading IngReading 256 IngByte0 And amp H3 IngBytel Test for Over Range If IngReading 1023 Then Show OR message MsgBox Over Range Else 24 Host Interface Calculate reading This formula gives the correct power of 10 based on the range IngWatts IngSign IngReading 10 nt UngRange 0 9 2 4 Show calculated reading MsgBox Reading amp IngWatts End If If bolError True Then MsgBox Error condition present End Sub LabVIEW PC installation drivers are available on www coherent com Unless there is a conflict with infor mation provided in this manual PM Digital uses drivers designed for the Coherent PM5200 laser power meter A separate set of PM Digital drivers will be available on our website in the near future 25 PM Digital User Manual 26 Calibration and Warranty CALIBRATION AND WARRANTY Calibration This section includes information on the following topics Calibration this page Coherent calibration facilities and capabilities page 28 Limited warranty page 29 Extended lifetime warranty page 29 Warranty limitations page 30 Obtaining service page 31 Product shipping instructions
3. kg test strength Cushion the instrument in the shipping carton with packing material or urethane foam on all sides between the carton and the product Allow 3 in 7 5 cm on all sides top and bottom Seat the shipping carton with shipping tape or an industrial stapler Ship the product to Coherent Inc 7470 SW Bridgeport Rd Portland OR 97224 Attn RMA add the RMA number you received from Coherent Customer Service 33 PM Digital User Manual 34 Appendix A Specifications APPENDIX A SPECIFICATIONS Table 2 lists specifications for the PM Digital Table 2 PM Digital Specifications Digital Output RS 232 9600 baud rate Dimensions h x w x d 3 7 in 94 0 mm 5 3 in 134 6 mm 2 2 in 55 9 mm AC wall charger included 35 PM Digital User Manual 36 PM Digital User Manual Coherent Inc 4 2004 Printed in the U S A Part No 0980 0330 0 Rev AB
4. page 33 Coherent laser power and energy meters are precision instruments capable of delivering very accurate measurements as well as providing many years of useful service To maintain this high level of performance it is important to have your measurement system serviced and recalibrated once a year 27 PM Digital User Manual Coherent Calibration Facilities and Capabilities As the largest laser manufacturer in the world Coherent has been able to build state of the art calibration facili ties containing the widest possible range of laser types and technologies This enables us to perform instrument and sensor calibration under virtually any combination of wavelength power and operating characteristics Sensors are calibrated against NIST traceable working standard sensors which are in turn calibrated against NIST calibrated golden standard sensors These working and golden standards are maintained with the utmost care recalibrated annually and verified even more regu larly We maintain multiple NIST calibrated standards at many laser wavelengths to support the growing calibra tion needs of our customers Optical calibration is a core competency at Coherent and we strive to continually improve our methods precision and repeatability Addi tionally most of the calibrations are performed with highly automated systems thus reducing the possibility of human error to nearly zero Strict quality inspections during many st
5. ENDER FAST ON SEND HEAD TEMP OFF READ ANALOG 0 The PM Digital normally reads the sensor voltage 7 times per second and every 64 readings it takes a reading of the sensor head temperature For some applications such as using the calorimeter sensors to measure single pulse energies it may be desired to take continuous read ings of the sensor output without interruption for head temperature readings This is achieved by turning on SENDER FAST with command byte 42h In this case readings will be transmitted 7 times per second similarly to the effect of 41h when the speed up function is ON but 21 PM Digital User Manual in the case of SENDER FAST there is no speed up processing done on the data and there are no interrup tions for head temp readings COMMAND BYTE 43h SENDER ON SENDER FAST OFF SEND HEAD TEMP ON READ ANALOG 0 This command adds a third byte to each transmission that specifies the head temperature in degrees centigrade Divide the byte value by 2 to get the temperature Temperatures over 100 are only transmitted as 100 COMMAND BYTE 47h send currently displayed reading This command will work only if the SENDER is OFF This can be useful if your computer has other demanding tasks to perform and the power just needs to be checked from time to time The PM Digital will respond imme diately with a two byte transmission after this command 22 Host Interface Example Private S
6. User Manual PM Digital Power Digitizer COHERENT User Manual PM Digital Power Digitizer COHERENT 7470 SW Bridgeport Rd Portland OR 97224 PM Digital User Manual This document is copyrighted with all rights reserved Under the copyright laws this document may not be copied in whole or in part or reproduced in any other media without the express written permission of Coherent Inc Permitted copies must carry the same proprietary and copyright notices as were affixed to the original This exception does not allow copies to be made for others whether or not sold but all the material purchased may be sold given or loaned to another person Under the law copying includes translation into another language Coherent the Coherent Logo and PM Digital are registered trademarks of Coherent Inc Every effort has been made to ensure that the data given in this document is accurate The information figures tables specifications and schematics contained herein are subject to change without notice Coherent makes no warranty or representation either expressed or implied with respect to this document In no event will Coherent be liable for any direct indirect special incidental or consequential damages resulting from any defects in its documentation Technical Support In the US Should you experience difficulties with your product or need technical information please visit our website www coherent com You c
7. ages of calibration and testing assure a precise and accurate instrument that is NIST traceable and CE marked The benefit to our customers is that instruments calibrated by Coherent will consistently perform as expected under their actual use conditions We are a registered ISO 9001 2000 company our prod ucts are NIST traceable and our calibration labs are fully ANSI Z540 compliant In addition to the technological advantage we also strive to deliver the best service in the industry with a knowl edgeable and responsive staff and rapid turnaround 28 Limited Warranty Extended Lifetime Wananty Calibration and Warranty Coherent Inc the Company warrants its laser power and energy meters and sensors products Products to the original purchaser the Customer that the product is free from defects in materials and workmanship and complies with all specifications active at the time of purchase for a period of twelve 12 months Coherent Inc will at its option repair or replace any product or component found to be defective during the warranty period This warranty applies only to the orig inal purchaser and is not transferable Coherent Inc the Company offers original purchasers the Customer purchasing laser power and energy meters and sensors products Products an extended lifetime warranty program which includes all parts and labor In order to qualify for this warra
8. an obtain additional support by either telephoning our Technical Support Hotline at 1 800 343 4912 or e mailing our Support Team at support instruments coherent com Telephone coverage is available Monday through Friday except U S holidays If you call outside our office hours your call will be taken by our answering system and will be returned when the office reopens If there are technical difficulties with your product that cannot be resolved by support mechanisms outlined above please e mail or telephone Coherent Technical Support with a description of the problem and the corrective steps attempted When communicating with our Technical Support Department via the web or telephone the model and serial number of the product will be required by the Support Engineer responding to your request Outside the U S If you are located outside the U S visit our website for technical assistance or telephone our local Service Representative Representative phone numbers and addresses can be found on the Coherent website www coherent com Coherent provides web and telephone technical assistance as a service to its customers and assumes no liability thereby for any injury or damage that may occur contemporaneous with such services These support services do not under any circumstances affect the terms of any warranty agreement between Coherent and the buyer Operating a Coherent product with any of its interlocks defeated is always
9. ange range FULL SCALE RANGES COMMAND BYTE PM DIGITAL RANGE 00h 30 mW 01h 100 mW 02h 300 mW 03h 1 W 04h 3 W 14 Host Interface FULL SCALE RANGES CONTINUED COMMAND BYTE PM DIGITAL RANGE 05h 10 W 06h 30 W 100 W 300 W Example Set to 30 watt range Private Sub SetRange MSComm1 Output Chr amp H6 End Sub 15 PM Digital User Manual AUTORANGE 10h to 11h Turns the AUTORANGE function ON or OFF The front panel display indicates the current status COMMAND BYTE 10h AUTORANGE OFF 11h AUTORANGE ON Example Turn off autorange Private Sub SetAutoRange MSComm1 Output Chr amp H10 End Sub The value of bits 1 2 and 3 in the operand is immate rial so any even value results in AUTO OFF any odd value in AUTO ON ZERO 20h If AUTO is on all valid ranges will be zeroed otherwise only the current range is zeroed The value of the low nibble is immaterial Example Zero the PM Digital Private Sub Zero MSComm1 Output Chr amp H20 End Sub 16 STATUS bit error Host Interface 30H Requests instrument error status The PM Digital will send a status response only if the sender function was OFF at the time the STATUS command was issued The status response is a single byte in which the lowest 7 bits indicate the presence or absence of a specific error condition The STATUS command is normally used when your program notices that the er
10. at the operator s risk 111 PM Digital User Manual 1v Table of Contents TABLE OF CONTENTS Pre ee ae a cas vi U S Export Control Laws Compliance ccocconnccnonccnonononnnancconncconccnnnnona nono nonos vi Publication Updates viii esse risas vi Symbols Used in This Document eis heben vil A O e r 1 Declaration OF Conformity er 3 DESC esse 5 Operation ot en aan 7 Controls ANG COMME CEOS eed ee i e e i ia 7 Power SW a 8 Power SUPRA 8 Charger Jack ses 8 RS 232 Computer Interface Connector uur2un2ssnesnneennersnnennennnnen nenn 8 SEHSOPLONNERIOT SI AN seele Sodas 9 LED Indicators vision ica 9 Application into Mala ese adie ede coe et en ae eae 10 Sensor Compatibility uu aiii ea 10 CAMA A AS ei 10 Host Interact ea 11 Commands oh Si SI Sr ae 14 RANGE siciliana baue 14 AUTORANGE es ee EIN 16 APRO e a ad adie A SESAEFGERTERREESERBAE RER 16 STATUS SER ER 17 SENDER na aka 19 PM Digital User Manual Calibration and Warranty eeeeeeee 27 Calibrations ne esse nenne 27 Coherent Calibration Facilities and Capabilities uu nee 28 Limited Watts tad 29 Extended Lifetime Warranty AAA kin ann 29 Warranty Limitations ii ias 30 ODER E SEE ee 31 Product Shipping Instructions a ae 33 Appendix A Specifications eeeeeene 35 LIST OF TABLES 1 Coherent Service Centers ect 3 bie na ised ie Nai E ATN 32 2 PM Digital Spec OS nos 35 LIST OF FIGURES 1 Controls and Conne
11. ctors ccccccccccccccccccccececececececececececececececececececececeeeeeeess 7 vi Preface U S Export Contol Laws Compliance Public ation Updates Preface This manual contains user information for the PM Digital power digitizer It is the policy of Coherent to comply strictly with U S export control laws Export and re export of lasers manufactured by Coherent are subject to U S Export Administration Regulations which are administered by the Commerce Department In addition shipments of certain components are regu lated by the State Department under the International Traffic in Arms Regulations The applicable restrictions vary depending on the specific product involved and its destination In some cases U S law requires that U S Government approval be obtained prior to resale export or re export of certain articles When there is uncertainty about the obligations imposed by U S law clarification should be obtained from Coherent or an appropriate U S Government agency To view information that may have been added or changed since this publication went to print connect to www coherent com Vil PM Digital User Manual Symbols Used in This Document This symbol is intended to alert the operator to the presence of dangerous voltages associated with the product that may be of sufficient magnitude to consti tute a risk of electrical shock This symbol is intended to alert the operator to the
12. d PM Digital end of the serial link Because a binary format is not as intuitive as text based communication a number of examples are given to illus trate various commands The samples shown are in BASIC but the same I O can be achieved from any popular language Note that the BASIC PRINT state ments are shown with a trailing semicolon This avoids sending an automatic carriage return linefeed at the end of the transmission Because the PM Digital uses binary format you need to suppress sending automatic line termination characters from whatever language you re using otherwise these are interpreted as undesired commands Each command is given by sending a single 8 bit byte The value of a byte is most easily expressed using hexadecimal notation or base 16 in which A 10 B 11 C 12 D 13 E 14 and F 15 For example the byte 6Bh has the decimal value of 6 16 11 83 the h indicates hexadecimal base A byte can have any integer 11 PM Digital User Manual value from O to 255 255 15 16 15 FFh It is conventional to say that a byte has a high and a low nibble with each nibble specified by a single hexadec imal digit the high nibble of 93h is 9h When the PM Digital receives a byte the high nibble is considered the OPCODE which selects what type of function is being requested In case there are different options for a given function the low nibble is considered the OPERAND which specifies how to carry out th
13. e selected function For some functions the value of the operand is immaterial The bit level structure of a command byte is bit 6 5 4 3 2 1 0 byte OPCODE OPERAND decimal 64 32 16 8 4 2 1 high nibble low nibble OPCODES 12 Host Interface Remote keypress function Override analog settings Not used Not used Not used F Not used Refer to Commands on page 14 for a description of these commands and the response of the PM Digital For normal use only OPCODES 0 1 2 3 and 4 are impor tant Details of the other commands are not provided here as they are intended mainly for factory service use 13 PM Digital User Manual Commands RANGE The sample Visual Basic code presented in this section assumes that a VB form exists with the Microsoft communications control present Set the Name property of the communications control to MSComm1 the Settings property to 9600 n 8 1 and the InputLen property to 1 The Do Until and Do While loops in the sample code provide a wait state until data is ready to be received by the COMM port These loops are for example purposes only Coherent recommends that you include additional code to allow the loops to exit in the event that data is not received 00h to OBh Sets full scale range of the instrument to a value determined by the operand nibble If the selected range is not possible with the current sensor the PM Digital will not ch
14. epair gt Operation outside the environmental specifications of the product Coherent assumes no liability for Customer supplied material returned with Products for warranty service or recalibration THIS WARRANTY IS EXCLUSIVE IN LIEU OF ALL OTHER WARRANTIES WHETHER WRITTEN ORAL OR IMPLIED COHERENT SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE IN NO EVENT SHALL 30 Obtaining Service Calibration and Warranty THE COMPANY BE LIABLE FOR ANY INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES IN CONNECTION WITH ITS PRODUCTS In order to obtain service under this warranty Customer must notify the Company of the defect before the expira tion of the warranty period and make suitable arrange ments for the performance of service The Company shall in its sole discretion determine whether to perform warranty service at the Customer s facility at the Company s facility or at an authorized repair station If Customer is directed by the Company to ship the product to the Company or a repair station Customer shall package the product to protect from damage during shipping and ship it to the address specified by the Company shipping prepaid The customer shall pay the cost of shipping the Product back to the Customer in conjunction with annual recalibration and repair the Company shall pay the cost of shipping the Product back to the Customer in conjunction with product fail
15. ery eliminator Application software LabVIEW drivers Measures CW and average power mW to kW Compatible with all PowerMax thermal sensors that have DB 25 connectors PM Digital User Manual Operation OPERATION This section explains how to use the PM Digital and includes information on Controls and connectors this page s Application information page 10 Controls and Figure 1 shows the location of the controls and connec tors on the PM Digital Connectors Sensor Connector Low Battery Power On on back panel LED Indicator LED Indicator RS 232 Computer Charger Jack Power Switch Interface Connector Figure 1 Controls and Connectors PM Digital User Manual Power Switch Power Supply Charger ack RS 232 Computer Interface Connector The PM Digitizer has a slide switch which is used to apply power to the unit The PM Digital can be operated either on its own rechargeable NiMH battery with 8 hours maximum operating time before recharging is necessary or with AC power supplied via an external battery charger The charger recharges a completely dead battery in about 10 hours This is a barrel connector that is compatible with the supplied battery charger The charger can both operate the instrument and keep the battery charged This 9 pin D connector is bidirectional RS 232 Data width is 8 bits no parity and the baud rate is 9600 The number of stop bits 1 or 2 is user selectable The
16. ment Control and Laboratory Equipment to include the following test specifications as of January 2003 ENSS011 Obes A Radtatod Emissions ENSS011 Class A Conducted Emissions ENS1000 3 3 Powerline Fluctuation Ernissions ENSI000 4 2 Electrostatic Discharge Performance Criteria B Lint map apona bo an 155 event Gut ell nebo bo moral without weer Intervention ENS1000 4 3 Radiated Immunity Performance Oriterla 4 ENS1000 4 4 Electrical Fach Transient Immunity Performance Oraerla A ENS1000 4 5 Electrical Slow Transient Immunity Performance Criteria A ENS1000 4 6 Conducted AF Immunity Performance Criteria A EMG 1000 4 11 Power Line Dropout Performance Criteria A A Cdra nee 5 APRIL OY A LLE fe Ye Date Apri cout General ae LMC PM Digital User Manual Description DESCRIPTION Thank you for purchasing the Coherent PM Digital Power Digitizer a microprocessor based power meter that provides the convenience and performance of a digital instrument It is small portable and may be AC or battery operated When connected to one of the Coherent PowerMax series of intelligent power sensors it automatically configures itself for that particular sensor giving you complete assurance of convenient and accurate operation Specific features of PM Digital include Range uV to V Wavelength correction set at the Factory RS 232 computer I O serial interface NIST traceable calibration Power from battery or AC batt
17. n to the voltage output of the sensor the connector supplies a sensor to monitor the internal sensor temperature There are two indicators on the front panel of the PM Digital The Power On LED glows green whenever power is applied to the instrument s The Low Battery LED glows amber only when the battery needs recharging PM Digital User Manual Application Information Sensor Compatibility Calibration PM Digital is designed for use with all Coherent PowerMax thermal sensors When one of these intelli gent sensors is plugged into the instrument PM Digital automatically sets up to work with that specific model sensor NIST traceable calibration performed at the factory meets all requirements listed under Appendix A Specifications on page 35 No additional calibration is necessary Each PowerMax system is furnished with a Certificate of Calibration 10 Host Interface HOST INTERFACE This section contains a full description of all the software commands that the PM Digital can process If you are not sure what cable to use for the RS 232 connection read RS 232 Computer Interface Connector on page 8 If you want to immediately start sending data to your PC from the PM Digital refer to SENDER on page 19 for some examples The PM Digital uses a binary data format for its command inputs and data transmission outputs This format makes the most efficient use of processor resources at the PC an
18. nty a Customer must return the Product to the Company for recalibration and recertification traceable to NIST and MIL STD 45662A within one year from the date of purchase and annually thereafter The Company will recertify the Product provide software upgrades and perform any needed repairs for a fixed service fee as established by the Company from time to time and in effect at the time of service If the Product fails and is returned to the Company within one year following the date of recalibration service the Company will at its option repair or replace the Product or any component found to be defective This warranty applies only to the original purchaser and is not transfer able 29 PM Digital User Manual Wananty Limitations If the Product is not returned for recalibration or service prior to the one year anniversary the lifetime warranty program expires The lifetime warranty program may be reinstated at Coherent s option after completion of a fee based product evaluation and repair and subsequent recalibration and recertification service The foregoing warranties shall not apply and Coherent reserves the right to refuse warranty service should malfunction or failure result from e Damage caused by improper installation handling or use e Laser damage including sensor elements damaged beyond repair e Failure to follow recommended maintenance procedures s Unauthorized product modification or r
19. ons The 47h command will immedi ately return a single transmission of the currently displayed reading COMMAND BYTE 40h SENDER OFF Fast Sender OFF Send Head Temp OFF Read Analog 0 This command turns off and initializes the SENDER function COMMAND BYTE 41h Sender ON Fast Sender OFF Send Head Temp OFF Read Analog 0 This command turns on normal data transmission If the speedup function is OFF then data will be transmitted about every 0 57 seconds when the digital display on the 19 PM Digital User Manual PM Digital front panel is updated In case the speedup function is ON then readings will be transmitted about every 0 14 seconds A reading is sent as 2 bytes which specify the reading current range minus sign and error flag The bit structure 1s bit 7 6 5 4 3 2 1 0 error minus byte 0 bit RANGE CODE D9 D8 bit 7 6 5 4 3 2 1 0 byte 1 Byte 0 bit 7 0 denotes no error 1 means error 1s present Byte 0 bits 3 6 RANGE CODE O 30mW 1 100mW 2 300mW 3 Lw 4 3W 5 10W 6 30W 7 100W 8 300W 9 1kW 20 Host Interface 10 3kW 11 10kW Byte 0 bit 2 0 if reading is positive 1 if it is negative Byte 0 bits 0 1 data high 2 bits Byte 1 bits 0 7 data low 8 bits On the even numbered ranges 299 gt data 0 On the odd numbered ranges 999 gt data 0 Overrange is denoted by data all ones decimal 1023 COMMAND BYTE 42h SENDER ON S
20. presence of important operating and maintenance instructions Vili Safety SAFETY Carefully review the following safety information to avoid personal injury and to prevent damage to this digi tizer or any sensor connected to it There are no user serviceable parts in the PM Digital digitizer For service information refer to Obtaining Service on page 31 Use only the power cord specified for the digitizer The grounding conductor of the cord must be connected to earth ground Do not operate the digitizer if its panels are removed or any of the interior circuitry is exposed Do not operate the digitizer in wet or damp condi tions or in an explosive atmosphere PM Digital User Manual Operate the digitizer only within the specified voltage range Do not apply a voltage outside the specified range of the input connections Provide proper digitizer ventilation Do not operate the digitizer if there are suspected fail ures Refer damaged units to qualified Coherent service personnel gt gt PP Safety Declaration of Conformity CR 12312 Bernin AB Declaration of Conformity Wie Coherent Inc formerte Molectron Detector Irc 7470 OW Bridgeport Road Portland Oregon USA 97324 declare that the PM Digital meets the intent of Directo H0336 EEC for Electromagnetic Compatibility Compliance was demonstrated per testing to ENG1226 Electromagnetic Compatibility Product Family Standard for Measure
21. ror bit is set in the data transmission cf SENDER command The relation between bit number and error type is 7 6 5 4 3 2 1 0 not bad bad bad bad over no low used head zero csum ref temp probe battery Example Private Sub StatusDecode Status holder variable Dim IngStatus As Long Make sure sender is off MSComm1 Output Chr amp H40 Loop until input buffer is empty Do While MSComm1 InBufferCount gt 0 Clear any old data Loop Request status MSComm1 Output Chr amp H30 17 PM Digital User Manual loop until status is returned Do Until MSComm1 InBufferCount gt 0 Loop Get status byte IngStatus Asc MSComm 1 Input Check each status bit If IngStatus 0 Then MsgBox No Errors If IngStatus And amp H1 amp H1 Then MsgBox Low Battery If IngStatus And amp H2 amp H2 Then MsgBox No Probe If IngStatus And amp H4 amp H4 Then MsgBox Over Temp If IngStatus And amp H8 amp H8 Then MsgBox Bad Ref If IngStatus And amp H10 amp H10 Then MsgBox Bad CSum If IngStatus And amp H20 amp H20 Then MsgBox Bad Zero If IngStatus And amp H40 amp H40 Then MsgBox Bad Head End Sub 18 Host Interface SENDER 40h 41h 42h 43h and 47h Turns the SENDER func tion ON or OFF and determines the nature of the data transmitted For most purposes you will only need to use 40h for OFF and 41h for ON 42h 43h and 47h provide specialized functi
22. ub SetSender Holder variable for byte 1 Dim IngByte0 As Long Holder variable for byte 2 Dim IngBytel As Long OOOO ONLY USED IF SENDER COMMAND amp H43 Holder variable for byte 3 amp H43 only Dim IngByte2 As Long Holder for temperature value amp H43 only Dim IngTemp As Long OOOO Holder variable for error flag Dim bolError As Boolean Holder variable for range Dim IngRange As Long Holder for reading sign Dim IngSign As Long Holder variable for reading Dim IngReading As Long Holder variable for calculated reading Dim IngWatts As Long Sender ON with temp byte MSComm1 Output Chr amp H43 loop until first byte is returned Do Until MSComm1 InBufferCount gt 0 Loop Read first byte and convert to long IngByte0 Asc MSComm1 Input 23 PM Digital User Manual loop until second byte is returned Do Until MSComm1 InBufferCount gt 0 Loop Read second byte and convert to long IngBytel Asc MSComml1 Input PEKE EOK K ode ode K K K K a K K K K ode ode K K K K K K K K K K K K K K K KK K K K K K K ONLY USED IF SENDER COMMAND amp H43 loop until third byte is returned amp H43 only Do Until MSComm1 InBufferCount gt 0 Loop Read third byte and convert to long amp H43 only IngByte2 Asc MSComml1 Input Calculate temperature amp H43 only IngTemp IngByte2 2 Show temperature amp H43 only MsgBox Head Temp amp IngTemp EEE K K K K K K K K K
23. ures within the first twelve months of time of sale or between annual recalibrations A Returned Material Authorization number RMA assigned by the Company must be included on the outside of all shipping packages and containers Items returned without an RMA number are subject to return to the sender For the latest Customer Service information refer to our website www coherent com 31 PM Digital User Manual Detailed instructions on how to prepare a product for shipping are shown under Product Shipping Instruc tions on page 33 Table 1 Coherent Service Centers LOCATION PHONE FAX E MAIL USA 1 800 343 4912 971 327 2778 info_service coherent com 32 Product Shipping Instruc tions Calibration and Warranty To prepare the product for shipping to Coherent 1 Contact Coherent Customer Service refer to Table 1 on page 32 for a Return Material Authori zation number Attach a tag to the product that includes the name and address of the owner the person to contact the serial number and the RMA number you received from Coherent Customer Service Wrap the product with polyethylene sheeting or equivalent material If the original packing material and carton are not available obtain a corrugated cardboard shipping carton with inside dimensions that are at least 6 in 15 cm taller wider and deeper than the product The shipping carton must be constructed of card board with a minimum of 375 lb 170

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