242 TEC C-Mount LaserMount User`s Manual
Contents
1. 543 1302 Fax 805 543 1303 sales arroyoinstruments com www arroyoinstruments com Copyright 2011 Arroyo Instruments All Rights Reserved P N 530 1004 Rev E2. NG The mount comes with a cover plate and nitrogen purge nipple that is recommended when operating the device below the dew point which is the temperature what which moisture will begin to condensate This is typically 10 to 15 C but is dependent on your laboratory conditions To prevent condensation after loading the device mount the cover plate by using the provided 4 40 flat head screws and screw in the nitrogen purge nipple if it is not already installed then connect a nitrogen source to the input nipple on the side of the mount A very low nitrogen flow is required to prevent condensation typically 1 to 2 SCFH standard cubic feet per hour Your fixture is now ready for use Additional technical information can be found below Pli arroyo Instruments Page 6 242 C Mount LaserMount User s Manual Connector Pin Outs 242 TEC C Mount LaserMount Rear Connectors DB 9 Pin Description 1 amp 2 No Connection 3 Chassis Ground GND 4 amp 5 Laser Cathode 6 Photodiode PD Cathode 7 Photodiode PD Anode 8 amp 9 Laser Anode Laser DB 9 Connector Pin Out DB 15 Pin Description 1 2 amp 9 3 4 amp 10 5 amp 6 Earth Ground 7 Thermistor 8 Thermistor 11 FAN 12 FAN 13 thru 15 No Connection TEC DB 15 Connector Pin Out Pli Instruments 242 TEC C Mount LaserMount User s Manual Page 7 Connection Description Tip 12VDC 8 to 12VDC Sleeve Fan Grou
3. USER S MANUAL G MOUNT arroyo Instruments Page 2 242 C Mount LaserMount User s Manual Introduction Thank you for choosing the 242 C Mount LaserMount from Arroyo Instruments The 242 LaserMount is designed for high performance and long term use The 242 LaserMount integrates a large 120W Peltier cooler for precise control and substantial heating and cooling capacity for your powerful devices Featuring an integrated nitrogen purge the 242 LaserMount has an operating range of 5 C to 85 C covering a broad range of temperature control needs For electrical connection the 242 LaserMount features an integrated lead clamp making electrical connection to the c mount lead a snap Simply load the c mount device into the fixture and turn the clamping knob The 242 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 242 LaserMount also offers all the features you would expect from a modern c mount laser diode fixture including e Stainless steel alignment plate for easy device alignment during loading Designed to be quickly integrated with Arroyo s LaserSource and TECSource instruments e Industry standard D sub connectors and pin outs allow for
4. cts 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 WARNING 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 your device Start by turning the knob on the top of the fixture counter clockwise to open the lead clamp Make sure the clamp is high enough to allow sufficient space for loading the device The 242 LaserMount has a stainless steel alignment plate which is there to help properly align the device to the mounting hole and clamping block Using the alignment plate to guide the device place the device onto the mount and use the 2 56 x 3 16 screw provided with the fixture to fasten the device to the fixture After the device has been mounted tighten the clamp by turning the knob on the top of the fixture clockwise until the lead is help tightly against the clamp block Do not over tighten the clamp or you may damage the clamping mechanism The drawing and two photos below illustrate the unloaded configuration with the clamp all the way open left and a device loaded and clamp tightened down on the device lead right Pli arroyo Instruments 242 TEC C Mount LaserMount User s Manual Page 5 LEAD CLAMP KNOB 062 ID TUBI
5. nd 12V Fan Connector Pin Out Technical Specifications _242 TEC C Mount LaserMount 242 TEC C Mount LaserMount LASER PACKAGE SUPPORTED Package C mount TEMPERATURE CONTROL Temperature Range C 5 to 85 Sensor Type BetaTHERM 10 1 10kQ Thermistor TE Module Imax 7 4A Vmax 16 4V Qmax 78W INPUT CONNECTORS Laser Diode DB 9 male Temperature Controller DB 15 male Fan 2 1mm round 8 to 12VDC Nitrogen 1 8 barb GENERAL Recommended nitrogen flow 1 to 2 SCFH Size without base H x W x D inimm 4 0 101 6 x 4 0 101 6 x 3 5 76 2 Mounting holes Slotted holes for 14 20 base 74 20 x 2 for post mount M6 for post mount 4 40 x 4 for nitrogen cover plate Calculating Temperature Using the Steinhart Hart Formula The thermistor resistance can easily be converted to temperature using the Steinhart Hart equation and is expressed as A B In R C In R Where R is the thermistor resistance in Ohms and A B and C are listed below Steinhart Hart Constants for Thermistor Temperature Calculation A 1 129241x10 3 B 2 341077x10 4 C 8 775468x10 8 Pli arroyo Instruments Page 8 242 C Mount LaserMount User s Manual Mechanical Specifications 161 6 zno sna 4 00 100 6 4o 101 6 2 00 50 8 Front View assolate 49 101 4 Detailed View of Device Load Area 200 558 Side View Pli arroyo Instruments 242 TEC C Moun
6. ng other equipment Ensure that any other equipment is properly isolated to avoid any ground loop problems Pli Instruments Page 10 242 C Mount LaserMount User s Manual Arroyo Instruments warrants this product to be free from defects in material and workmanship 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 Service and Support For service and support contact your local distributor or Arroyo Instruments 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 Pli Instruments 242 TEC C Mount LaserMount User s Manual Page 11 NOTES Pl Instruments gt arroyo instruments 624 Clarion Court San Luis Obispo CA 93401 Tel 805
7. osition However if you to elect to connect the diode plate to the case it is critical that proper grounding techniques are used Once you have properly configured the DIODE PLATE switch if you will be operating the mount then the only other item to setup is the power supply for the internal cooling fan 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 The connection into the mount is a standard 2 1mm round plug with the center pin positive and must be capable of supplying at least 150mA Pli Instruments Page 4 242 TEC C Mount LaserMount User s Manual Connect to Laser Diode Driver and TEC Controller Next connect the 242 LaserMount to your laser diode driver and temperature controller Make sure the temperature controller s current limit is set to a maximum value of 7 44 Where possible we recommend the use of Arroyo Instruments laser and TEC cables Use p n 1262 TECSource Cable for the temperature controller connection and p n 1220 LaserSource Cable for the laser connection Arroyo Instruments offers Laser and TEC cables designed to connect directly between our LaserSource and TECSource produ
8. quick integration into existing laser applications e Banana plug for case ground which can be used as a wrist strap connection or to assure proper grounding to an optical table or test bench Pli Instruments 242 TEC C Mount LaserMount User s Manual Page 3 Installation and Use The 242 LaserMount setup is very quick simply follow the directions below Configuring the mount The only configuration of the 242 LaserMount is determining if earth ground case is to be connected to the diode On the side of the 242 there is a switch labeled DIODE PLATE When the switch is in the CASE position then the diode plate is connected to the case and typically earth ground through the instrument cables of the fixture For example if the DIODE PLATE switch is set to CASE then the laser mounting plate and therefore the anode of the laser will be tied to the case If the switch is set to N C then the mounting plate will only be connected to the anode connection of the laser driver and no electrical connection to the case In addition to the switch there is a banana jack that provides a case connection which can be used for a wrist strap if the case is earth grounded or to tie the case to earth ground through something other than the laser driver The purpose of the switch and banana jack is to control how your laser diode is grounded If no earth grounding is required then the DIODE PLATE can be left in the N C p
9. t LaserMount User s Manual Page 9 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 controllers 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 usi
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