274 TECMount User`s Manual
Contents
1. Graph represents typical performance and will vary by flow rate and other conditions Pll 3110 0 Instruments Page 8 274 TECMount User s Manual Pressure Drop vs Flow Graph 274 TECMount Pressure Drop 20 C Water o o gt o o 15 2 0 2 5 Volume Flow Rate gpm Graph represents typical performance and will vary by flow rate and other conditions Pl 3110 0 Instruments 274 TECMount User s Manual Page 9 Configuring the Temperature Controller When using an Arroyo Instruments temperature controller the easiest method for configuring the controller to operate with the mount is to change the Mount setting in the menu by selecting the 274 or 274 150 depending This will change the sensor settings and current limit to be appropriate for this mount If you will be using a non Arroyo controller make sure to adjust the limits and sensor settings appropriately to ensure proper and safe operation of the mount Using the Thermistor on Standard Versions The 274 LaserMount is equipped with a 10kO negative temperature coefficient NTC thermistor specifically the BetaTHERM 10K3A1 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 32. DB 15 Pin Description 1289 3 4 amp 10 7 8 14 Thermistor RTD Sensor 8 amp 15 Thermistor or RTD Sensor 11 12 amp 13 FAN DB 15 Connector Pin Out Phoenix Pin Description 1 EXT 2 EXT Phoenix 2 Pin 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 from the 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 are not matched the instrument will indicate a sensor error EXT Input and SENSOR Switch The 274 features a SENSOR switch to quickly switch between internal and external temperature sensors With the SENSOR switch in the INT position the internal thermistor embedded in the cold plate is used to provide the feedback for the temperature controller With the SENSOR switch in the EXT position the EXT and EXT inputs on the Phoenix connector are connected to pins 7 amp 14 Sensor and 8 amp 15 Sensor The 274 comes with one Phoenix 2 pin plug Additional plugs can be ordered online at www mouser com or www digikey com Phoenix part number 1803578 9110 0 Instruments Page 6 274 TECMount User s Manual Technical Specifications 274 TECMount COLD PLATE Mounting Holes M3 TEMPERATURE CONTROL Standard Model
3. When using 4 wire measurement mode you must select RTD 4 wire as the sensor type and then connect the Sensor and Remote Sensor 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 1260B cable does not Temperature Controller Sensor Temperature Controller RTD 4 wire Measurement Pl 9110 0 Instruments 274 TECMount User s Manual Page 13 Operating at High Temperatures The 274 150 150 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 To gain the maximum performance of the 274 150 the recommended controller is a 5300 10 18 which has an 10A 18V output or the 5400 15 28 which has a 15A 28V output Contact the factory for more details 2 Ifthe mount is heating when at high temperatures if possible raise the water temperature By lowering the temperature difference
4. 85 C Temperature Range C 25 to 85 non condensing Sensor Type 10kQ Thermistor High Temp Model 150 C Temperature Range C 25 to 150 non condensing Sensor Type 100 Platinum RTD TE Module at 25 C Imax 16A Vmax 33V CONNECTORS INTERFACES Temperature Controller DB 15 male External Sensor Phoenix 2 Pin plug p n 1803578 Coolant Inlet Outlet 1 8 Female NPT with pre installed brass hose barbs 3 8 1 0 hose GENERAL Recommended Coolant Deionized Water Max Water Pressure psi 80 Max Housing Temperature C 60 Size H x W x D in mm 2 5 63 5 x 4 8 121 9 x 3 2 81 3 Wetted Materials For purposes of evaluating galvanic corrosion the following materials will make contact with the coolant Housing Anodized AL 6061 T6 Dissipative plate Electroless nickel plated AL 6061 16 Fittings UNS C36000 Brass O ring EPDM See Operating at High Temperatures below for additional requirements at high temperatures arroyo Instruments 274 TECMount User s Manual Page 7 Thermal Performance Graph 50 Plate 5 C Plate 45 Plate 359C Plate _ 25 C Plate 15 C Plate 15 C Plate 25 C Plate 11111111 Ail Aur CONNNNAX TENANT PSS Power Watts 0 gt gt Q Q 3 0 te 5 0 gt 5 5 5 Q LLJ lt N s EJ g snem
5. 0000 20000 Resistance 10000 0 10 00 10 00 30 00 50 00 70 00 90 00 110 00 Temperature Resistance vs Temperature Graph As can be seen by the graph the resistance of the thermistor drops very quickly In the typical control range 0 C to 40 C typical 10K thermistors offer good 9110 0 Instruments Page 10 274 TECMount User s Manual 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 10pA 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 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 Z A B In R The coefficients for the Beta T HERM 10K3A1 thermistor are 1 12924 105
6. 2 34108x10 0 87755x107 These are the default coefficients for Arroyo Instruments temperature controllers but can be changed in the Sensor menu or by selecting the appropriate 274 mount from the Mount menu setting Pli arroyo Instruments 274 TECMount User s Manual Page 11 Using the RTD on 150 C Versions The 274 TECMount can optionally be configured for up to 150 C operation To support this high temperature operation a RTD sensor with a 0 00385 Q C sensitivity is used Like thermistors RTDs also function by converting 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 You can identify a 150 C configured 274 by its part number a 150 will be added to the end for example 274 150 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 value resistance at 0 typically 100Q as is the case with the RTD used in the 274 of the RTD the following equation is used R R 1 AT BT Below R an additional term is added to the equation R 1 AT 100 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 IE
7. 400 Series controllers use the 1264 DB15 cable Pl 9110 0 Instruments Page 4 274 TECMount User s Manual Arroyo Instruments offers TEC cables designed to connect directly between our 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 Connecting the water supply The 274 comes with factory installed brass barbs suitable for 3 8 hose but they can be replaced with any 1 8 NPT male fitting It is recommended that when using the barbs pipe clamps be used to secure the hose to the 274 Earth Grounding Considerations If your application requires that the cold plate be earth grounded you should directly wire the cold plate to earth ground When not using the 274 for prolonged periods of time it is recommended that the water be drained from the unit and allowed to air dry A burst of compressed air is also beneficial to blow out any residual water inside the unit Mounting Plate The 274 TECMount has a bread board configuration with M3 holes on 10mm centers Optional blank adapter plates are available in several sizes 3 2 4 2 and 5 2 square to allow for custom mounting patterns or larger mounting surfaces See mechanical information below Pll 9110 0 Instruments 274 TECMount User s Manual Page 5 Connector
8. C751 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 most cases the 5300 10 18 is the recommended controller for the 274 although lessor more powerful controllers may be used depending on the thermal load capability required 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 C curve which has the following coefficients 3 9080 103 0 58019x10 4 2735x10 100 Pl 9110 0 Instruments Page 12 274 TECMount User s Manual These coefficients can be changed in the Sensor menu or by selecting the appropriate 274 mount from the Mount menu setting 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
9. San Luis Obispo CA 93401 Tel 805 543 1302 Fax 805 543 1303 sales arroyoinstruments com www arroyoinstruments com Copyright 2015 Arroyo Instruments All Rights Reserved P N 530 1042 Rev B
10. USER S MANUAL WATER COOLED MOUNT Pal arroyo instruments Page 2 274 TECMount User s Manual Table of Contents 18114616 m 3 ItziiuE aeda 3 MOUNINO 214 LO 4 Connector 16 5 EXT Input and SENSOR rine roa 5 Technical Specifications 6 weied tq fasi eM 6 Thermal Performance 7 Pressure Drop vs Flow 8 Configuring the Temperature 9 Using the Thermistor on Standard Versions 9 Using the on 150 C Versions 11 Operating at High 13 Mechanical Drawings 14 e t 18 Service and 18 Pll 9110 0 Instruments 274 TECMount User s Manual Page Introduction Thank you for choosing the 274 TECMount from Arroyo Instruments The 274 TECMount is designed for high performance and long term use The 274 TECMount integrates a high power Peltier cooler for precise control and substantial heating and cooling capacity for your powe
11. between the water temperature and the plate temperature the TEC will not work as hard and provide better plate uniformity as well as not requiring as much power to operate the Pl 9110 0 Instruments Page 14 274 TECMount User s Manual Mechanical Drawings THREADED HOLES MM SQUARE HOLE PATTERN 25164 4X 5 7256 1 2 76 70 SQUARE 4 5 114 6 50 127 Y 4 00 101 6 Top View 1 38 34591 1 66 16 6 4 80 11219 Rear View Pll 3110 0 Instruments 274 TECMount User s Manual Page 15 i 3 55 Top View Mount Plate on Front 1101 6 Hear View Mount Plate on Front Side View Mount Plate on Front 90 2 i 4 76 1120 9 Pll 3110 0 Instruments Page 16 274 TECMount User s Manual Optional Adapter Plates _ E _ 3 20 81 3 SQUARE 3 2 Adapter Plate Top View p n AP 01 3 2 LJ 4 20 106 7 SQUARE 4 2 Adapter Plate Top View p n AP 01 4 2 5 20 132 1 SQUARE 5 2 Adapter Plate Top View p n AP 01 3 2 Pll 91100 Instruments 274 TECMount User s Manua
12. l Page 17 E 30 SS 7 6 TE 2 80 Ns 71 2 7 274 Isometric View 3110 0 Instruments Page 18 274 TECMount 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 The 274 contains no user serviceable parts For service and support contact your local distributor or Arroyo Instruments Telephone 1 805 543 1302 Facsimile 1 805 543 1303 Email support arroyoinstruments com Web http www arroyoinstruments com Address 624 Clarion Court San Luis Obispo CA 93401 USA Pll 9110 0 Instruments 274 TECMount User s Manual Page 19 NOTES 3110 0 Instruments arroyo Instruments 624 Clarion Court
13. rful devices The standard 274 TECMount has an operating range of 25 C to 85 C Operation below the dew point requires a nitrogen purged environment The 274 TECMount requires water cooling for proper operation For maximum performance a chiller rated for at least 400 Watts or greater is recommended but smaller chillers can be used for lower power applications In most applications the 5300 10 18 TECSource temperature controller is a good match for the mount but for maximum performance a 5400 15 28 TECSource temperature controller is required The 274 TECMount also offers all the features you would expect from a modern diode fixture including Hard nickel over copper thermal plate Designed to be quickly integrated with Arroyo s TECSource instruments e Industry standard D sub connector and pin outs allow for quick integration into existing laser applications External sensor input for easy injection of on board device sensor as sensor feedback Installation and Use Connecting to the TEC Controller First connect the 274 TECMount to your temperature controller Make sure the temperature controller s current limit is set to a maximum value of no more than 16 Amps Where possible we recommend the use of Arroyo Instruments TEC cables If you are using an Arroyo Instruments 5300 Series TECSource temperature controller as 1262B TECSource cable is the recommend interconnect between the mount and controller For the 5
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