260 Series LaserMount User`s Manual
Contents
1. Instruments 262 264 LaserMount User s Manual Page 19 2 Wire versus 4 Wire Measurements One concern in using RTDs are their relatively low resistance typically 1000 at 0 C and small Because of these two factors the resistance of the cable used to connect to the sensor can become a significant error in the sensor measurement Most Arroyo Instruments controllers offer two RTD measurement modes a conventional two wire measurement mode which is subject to this error and a four wire measurement mode that uses separate sensor and source lines to remotely sense the actual resistance of the RTD and eliminate the cable or connector resistances When using 4 wire measurement mode you must select RTD 4 wire as the sensor type and then connect Sensor and Remote at one side of the RTD and Sensor and Remote Sensor to the other side of the RTD Make these connections as close to the sensor as possible The drawings below illustrate how 2 wire and 4 wire connections work Note that 4 wire measurements require all four wires to be brought through the cable to the mount The 1262 TECSource cable carries this connection through to the mount but the 1260 cable does not Sensor Temperature Controller Sensor Temperature Controller RTD 4 wire Measurement Instruments Page 20 262 264 LaserMount User s Manual Operating at High Temperatures The 264 150 152. m b 4 _ TM 279 Fr 59 ZB Dm m Cm JB y USER S MANUAL HIGH POWER MOUNT Pal arroyo Instruments Page 2 262 264 LaserMount User s Manual Table of Contents Introduction RE 3 Safety Terms and Symibols cerei ttn 3 Installation arid errat erreur pn 4 Connector PINs OUTS c 7 Technical Specifications 9 Mechanical 5 10 Using the Thermistor on Standard Versions 16 Using the RTD on 150 C 18 Operating at High Temperatures 20 Laser Diode PFOIBOlO sis orar 21 laret 22 Maintenance and 23 2170 0 Instruments 262 264 LaserMount User s Manual Page 3 Introduction Thank you for choosing the 262 264 LaserMount from Arroyo Instruments The 262 264 LaserMount is designed for high performance and long term use The 264 LaserMount integrates a large 120W Peltier cooler for precise control and substantial heating and cooling capacity for your powerful devices The standard 264 LaserMount has an operating range of 15 C to 85 C and the 150 version allows operation up to 150 C covering a broad range of temperature cont
3. Version Temperature Range C Sensor Type TE Module INPUT CONNECTORS Laser Diode Temperature Coniroller GENERAL Fan Size H x W x D in mm Mounting holes Various high power devices 15 85 BetaTHERM 10K3A1IA 10kQ Thermistor 15 to 150 100Q Platinum RTD 0 00385 Imax 7 4A Vmax 16 4V DB 9 male or 9W4 male DB 15 male 12VDC 210mA max 3 0 76 2 x 4 5 114 3 x 6 0 152 4 Four holes for 14 20 screws Instruments Page 10 262 264 LaserMount User s Manual Mechanical Drawings 3 48 88 3 3 00 76 2 2X 8 32 UNC j 600115241 amp OM 9 le CD CD N 4X 2768 High Power LaserMount S Ha 2 95 74 9 4 00 101 6 P 450 1143 Figure 1 Top View of the 262 2110 0 Instruments 262 264 LaserMount User s Manual Page 11 gt i rd 51 M 7 N X 6 32 UNC j e N N 7 gt N ud x Figure 2 Detail View of the 262 Mounting Holes 1 10 279 2X 50 127 0 0 2 50 127 1 10 279 Pl 21100 Instruments Page 12 262 264 LaserMount User s Manual 1 2 3
4. is available on the Arroyo Instruments web site You can contact Arroyo Instruments through one of these methods By mail Arroyo Instruments 624 Clarion Court San Luis Obispo CA 93401 USA By phone 1 805 543 1302 By fax 1 805 543 1303 By email support arroyoinstruments com On the web http www arroyoinstruments com In all cases Arroyo Instruments requires a return materials authorization RMA number You must contact Arroyo Instruments and obtain an RMA number prior to returning your instrument or the shipment may be rejected and sent back to you Pr Instruments Pll arroyo instruments 624 Clarion Court San Luis Obispo CA 93401 Tel 805 543 1302 Fax 805 543 1303 sales arroyoinstruments com www arroyoinstruments com Copyright 2013 Arroyo Instruments All Rights Reserved P N 530 1013 Rev D
5. x 4 JDSU 14 4900 2 56 screws x 2 262 264 LaserMount User s Manual Page 15 321 815 3 00 76 2 1 1 i 15 37 70 17 8 J0 17 8 Figure 5 Rear View of 260 Series DB9 i 1 3 00 76 2 3 15 79 9 1 1 i 15 37 H 70 17 8 70 17 8 Figure 6 Rear View of 260 Series 9W4 Pl 21100 Instruments Page 16 262 264 LaserMount User s Manual 701178 25 64 4 34 8 6 MN CT Figure 7 Front View of 260 Series Using the Thermistor on Standard Versions The standard version of the 264 LaserMount is equipped with a 10kQ negative temperature coefficient NTC thermistor specifically the BetaTHERM 10 1 A thermistor works by translating temperature into resistance with resistance decreasing as temperature increases hence the negative coefficient Below is the response curve of the thermistor 50000 40000 30000 20000 Resistance Q 10000 0 10 00 10 00 30 00 50 00 70 00 90 00 110 00 Temperature C Resistance vs Temperature Graph Pr Instruments 262 264 LaserMount User s Manual Page 17 As can be seen be the graph the resistance of the thermistor drops very quickly In the typical control range 0 C to 40
6. 0 C capable version has additional requirements that should be considered when operating in the upper temperature range 1 The voltage requirements of the TEC increase significantly when operating at the higher temperatures so much so that the standard 5305 or 6300 Series controllers will be voltage limited when controlling the mount It is recommended that you purchase the 5300 04 15 controller which has a 4A 15V output enough to provide the additional voltage needed by the mount compared to the 5A 12V outputs of the 5305 of 6300 Series controllers Contact the factory for more details 2 Turn off the mount fan when operating significantly above ambient By turning off the fan you reduce the cooling efficiency on the heat sink which is desirable when operating at high temperature and will reduce the amount of TEC power required to reach and maintain the target temperature However you may still need the fan if you will be operating the mount under heavy thermal load such that it is cooling even at elevated temperatures Note that the body of the heat sink will become warm and could reach temperatures of up to 50 C Instruments 262 264 LaserMount User s Manual Page 21 Laser Diode Protection Electrostatic discharge and current spikes can be a significant cause of damage to laser diodes but when proper precautions are taken these risks can be greatly reduced or eliminated Arroyo Instruments control
7. 0 58 4 DEVICE 3 48 88 3 PLATE i op bu 3 00 76 2 2X 8 32 UNC f 1 D amp N Xd instruments High Power TEC LaserMount 2 95 749 4 00 101 6 E 450 1143 Figure 3 Top View of the 264 2110 0 Instruments 6 00 152 4 32 8 2 03 0 6 23 57 32 8 2 9X 2 56 UNC lt 262 264 LaserMount User s Manual Page 13 cu Y rto b A VN N o HA 88 22 2 Ww rj H ZL 8822 N 1 13 28 6 51 13 39 9 9 220 5 1513 8 010 15 3 8 l 20 5 ds 1 51 13 6X 4 40 UNC 4 1 13 28 6 Figure 4 Detail View of the 264 Mounting Holes Pl 21100 Instruments Page 14 262 264 LaserMount User s Manual Mounting Locations for Standard 264 Plate no e e Butterfly 2 56 screws x 4 Lumics TO package 2 56 screws x 1 JDSU L3 2 56 screws x 4 o 9 TO zo SP package 0 80 screws x 4 STAR LED 4 40 screws x 6 Pr Instruments Alfalight AM6 package 2 56 screws
8. C typical 10K thermistors offer good sensitivity to changes in temperature and this is the range in which most 10K thermistors are typically used 10K thermistors can be used at much higher temperatures but will suffer poorer temperature stability performance because of the lower sensitivity All Arroyo temperature controllers support operation using a 10 or 100 thermistor bias which limits the upper control range to 450 or 45 respectively To minimize noise and maximize stability you should select highest current while still allowing you full operation across your required temperature range The typical setting is 100pA but your application will determine the actual needs The Steinhart Hart Equation As can be seen from the temperature versus resistance graph above resistance varies inversely with temperature in a non linear fashion This relationship can be accurately modeled by polynomial equations and one such being the Steinhart Hart equation L A B In R C R The coefficients for the BetaTHERM 10K3A1 thermistor are A 1 12924x10 2 34108x10 C 0 87755x107 These are the default coefficients for Arroyo Instruments temperature controllers Instruments Page 18 262 264 LaserMount User s Manual Using the RTD on 150 C Versions The 150 C version of the 264 LaserMount is equipped with a RTD sensor with a 0 00385 Q C sensitivity Like thermistors RTDs also function by c
9. ding custom machined plates contact the factory for details Instruments 262 264 User s Manual Page 7 262 264 Rear Connectors Description 1 amp 2 No Connection 4 amp 5 Laser Cathode 6 Photodiode PD Cathode 7 Photodiode PD Anode 8 amp 9 Laser Anode Laser DB 9 Connector Pin Out 9W4 Pin Description A1 Laser Anode A2 No Connection A3 Laser Cathode 4 No Connection Signal Pins Connection Shell Earth Ground Laser 9W4 Connector Pin Out arroyo instruments Page 8 262 264 LaserMount User s Manual DB 15 Pin Description 1 2 amp 9 TE 3 4 amp 10 TE 7 Thermistor or RTD 8 Thermistor RTD 11 FAN 12 FAN 13 No connection 14 RTD Sense 15 RTD Sense TEC DB 15 Connector Pin Out Sensor Polarity and 4 Wire Connections While the thermistor and RTD inputs are not polarized when using a 4 wire RTD connection to the 264 150 mount it is important to properly connect the polarity of the sense wires to the sensor Pins 7 and 14 should be one polarity and pins 8 and 15 should be the opposite polarity If polarities not matched the instrument will indicate a sensor error Pl Instruments 262 264 LaserMount User s Manual Page 9 Technical Specifications 262 264 LaserMount LASER PACKAGE SUPPORTED Package TEMPERATURE CONTROL 264 only Standard Version Temperature Range C Sensor Type High Temperature
10. erMount User s Manual e Visible damage to the unit including damage or stress caused during product shipment e Storage of the unit outside the standard storage temperature or humidity rating or prolonged storage under harsh conditions e Failure to operate properly If needed contact your distributor or Arroyo Instruments for service or repair to ensure the safety of the product is maintained The 262 264 LaserMount is easy to use mount It typically comes preconfigured for your device so simply mount the device onto the plate using the holes provided and make the electrical connections to the device If you are using an Arroyo Instruments 5300 Series TECSource temperature controller the fan supply is built directly into the TECSource You will need to enable the fan supply in the TECSource menu see the TECSource manual for additional details on how to do that If you are using a third party temperature controller then you will need to provide a 12V DC power supply through the DB 15 connection See the pinout below for the fan pin assignments Earth Grounding Considerations The DB 9 or 9W4 and DB 15 connector shells are electrically connected to the housing and 8mm banana jack Depending on the wiring of your cables and instruments this may or may not provide earth grounding of the fixture Make sure the cable shell is earth grounded on both ends of the cable and that the instrument makes connection
11. from its connector to earth ground If in doubt you can also use a grounding strap from the 8mm banana jack directly to earth ground Instruments 262 264 LaserMount User s Manual Page 5 The mount is capable of producing high temperatures on the mounting plate which can cause burns to skin or other objects that come in contact with the mounting plate Connect to Laser Diode Driver and TEC Controller Next connect the 262 264 LaserMount to your laser diode driver and temperature controller If using the 264 Make sure the temperature controller s current limit is set to a maximum value of 7 4A If using the 262 and connecting the temperature controller to your device ensure that the maximum current for your device is properly set on the temperature controller For 150 C versions make sure to adjust the RTD coefficients to their proper values or the temperature measurement and set point will not be correct See Using the RTD on 150 Versions below for more information The 262 264 LaserMount will be equipped with either a DB 9or 9W4 male connector for the laser The DB 9 is used for lower power applications usually no more than 10A while the 9W4 supports up to 20A operation Where possible we recommend the use of Arroyo Instruments laser and TEC cables Use p n 1264 TECSource Cable for the temperature controller connection and LaserSource cable as appropriate for your fixture Arroyo Instrumen
12. lers offer state of art laser diode protection but no instrument can fully shield the laser from damage Please take these considerations into account when operating your laser 1 Always set the current limit at or below the maximum current your laser can handle This prevents the device from accidentally driving the current too high either via the set point or from the modulation port This also provides additional current limiting protection from ESD 2 Always work in an ESD safe operating environment including the use of wrist straps ESD grounded work surfaces and floors and ESD safe tools 3 Where the AC power to the laser driver to temperature controller may be noisy use isolation transformers or uninterruptible power supplies that provide isolation 4 Make sure all cables are securely connected and fastening screws are screwed in tight 5 Do not route power cords or other cables in parallel with the laser or temperature controller cables as coupling may occur between the cables and inject noise into the laser diode 6 While it is not possible to create a ground loop through the LaserSource because of it s isolation of all inputs it is possible when using other equipment Ensure that any other equipment is properly isolated to avoid any ground loop problems Pr Instruments Page 22 262 264 LaserMount User s Manual Arroyo Instruments warrants this product to be free from defects in material and workmanship
13. onverting temperature into resistance but unlike thermistors RTDs increase in resistance as temperature increases RTDs are also a fairly linear device meaning they can be used across a much broader temperature control range According to IEC751 the resistance temperature relationship is determined using one of two equations dependent on the temperature or resistance value being measured For resistances above the R value resistance at 0 C typically 1000 as is the case with the RTD used in the 264 of the RTD the following equation is used R R 1 AT Below Ro an additional term is added to the equation R R 1 AT BT 100 77 In both of these equations R is the resistance of the RTD at 0 C and A B and C are the coefficients as defined by IEC751 through regression analysis or by using the Callendar van Dusen method Not all Arroyo Instruments temperature controllers support RTD operation Check with the factory for the recommended controller as high temperature operation also has additional requirements for the controller see Operating at High Temperatures below For the Arroyo Instruments controllers that support RTD sensors the default coefficients are not correct for this mount They must be changed to use the 0 00385 curve which has the following coefficients A 3 9080x10 B 0 58019x10 4 2735 1072 100 These coefficients can be changed the Sensor menu
14. rol needs The 262 LaserMount provides passive cooling with very low C Watt thermal rise The 262 264 LaserMount comes standard with an integrated fan for additional cooling capacity When used with the 5300 Series TECSource temperature controllers no additional power supply is needed to power the fan or use a standard external 12V DC power supply when connecting to other temperature controllers The 262 264 LaserMount also offers all the features you would expect from a modern diode fixture including e nickel over 100 oxygen free copper thermal plate e Designed to be quickly integrated with Arroyo s LaserSource and TECSource instruments e Industry standard D sub connectors and pin outs allow for quick integration into existing laser applications Safety Terms and Symbols The following safety related terms are used in this manual e Warnings noted by the WARNING heading explain dangers that could result in physical injury or death e Cautions noted by the CAUTION heading explain conditions that could result in damage to the instrument other equipment or your device e Notes noted by the NOTES heading are not safety related and are intended simply to point out important information If at any time any of the following conditions exist or are suspected of existing discontinue use of the unit until it can be inspected by qualified service personnel Pr Instruments Page 4 262 264 Las
15. ts offers Laser and TEC cables designed to connect directly between our LaserSource and TECSource products If you use your own cables ensure the connections are properly made between the instrument and the mount and that proper grounding techniques are used The pin out of the connectors can be found later in this document Instruments Page 6 262 264 LaserMount User s Manual Be sure you are properly ESD protected before handling your laser For additional information read the section titled Laser Diode Protection later in this manual Mounting Plates The 262 264 LaserMounts are available with a variety of different mounting plates The most common plate is the BB plate which is a grid of mounting holes much like an optical bread board hence the BB desgination There are two BB configurations e 264 BB 2 56 holes on 0 25 centers 264M BB 2 5 holes on 6 25mm centers There is also a standard 264 Plate detailed on page 14 below which accepts a wide variety of device types Because the specific model number of the 264 varies depending on the device termination requirements please contact the factory for the appropriate 264 part number To designate the connector type add a DB9 or 9W4 to the end for a DB 9 male connector or 9W4 male connector respectively For 150 C mounts add a 150 to the end of the part number Additional configurations are available inclu
16. under normal use and service for a period of one 1 year from date of shipment It does not apply when the product has been misused altered or damaged by accident or abnormal conditions of operation If found to be defective during the warranty period the product will either be repaired or replaced at Arroyo Instruments s option THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE ARROYO INSTRUMENTS SHALL NOT BE LIABLE FOR ANY INDIRECT SPECIAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE PURCHASE OR USE OF ITS PRODUCTS Instruments 262 264 LaserMount User s Manual Page 23 Maintenance Service Maintenance The ComboSource requires no regular maintenance other than product calibration To clean the instrument use cotton cloth that is only damp not wet with a light solution of soap and water Fuses Under normal operation you should never need to replace a fuse However if either fuse does blow use only T 250V 1A IEC 60127 2 5x20mm metric fuses as replacements If after replacing the fuse it continues to blow immediately discontinue use of the instrument and contact service for support Service Service and repair for the ComboSource can be obtained by contacting the distributor from where you purchased the instrument or directly from Arroyo Instruments A complete list of distributors
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