Model No. 110CS - Lake Shore Cryotronics, Inc.
Contents
1. User s Manual Model 110CS Current Source Lakeshore Lake Shore Cryotronics In 575 McCorkle Boulevard Westerville Ohio 43082 8888 USA E Mail Addresses sales lakeshore com service lakeshore com Visit Our Website www lakeshore com Fax 614 891 1392 Telephone 614 891 2243 Methods and apparatus disclosed and described herein have been developed solely on company funds of Lake Shore Cryotronics Inc No government or other contractual support or relationship whatsoever has existed which in any way affects or mitigates proprietary rights of Lake Shore Cryotronics Inc in these developments Methods and apparatus disclosed herein may be subject to U S Patents existing or applied for Lake Shore Cryotronics Inc reserves the right to add improve modify or withdraw functions design modifications or products at any time without notice Lake Shore shall not be liable for errors contained herein or for incidental or consequential damages in connection with furnishing performance or use of this material Rev 1 3 P N 119 015 3 December 2004 Lake Shore Model 110CS User s Manual LIMITED WARRANTY STATEMENT WARRANTY PERIOD ONE 1 YEAR 1 Lake Shore warrants that this Lake Shore product the Product will be free from defects in materials and workmanship for the Warranty Period specified above the Warranty Period If Lake Shore receives notice of any such defects during the Warranty Period and the Pr2. 1 Model 110CS Front Panel Operation 3 1 Lake Shore Model 110CS User s Manual 3 2 REAR PANEL FEATURES AND FUNCTIONS Terminal Block 5 position terminal block for easy connection of PRGM Programming Resistor GND Shielding Ground and OUT Output Current PRGM ADJ Program Adjust Trim Potentiometer Adjusts output current value 5 The Line Voltage Selection Block indicates the fuse rating and selected line voltage The as ordered setting is marked at the factory but can be modified using the procedure provided in Paragraph 4 2 PRGM GND OUT J FUSE 5x20 SB 0 24 O oa 50 60 HZ AC 90 125v 210 250V P 110 3 2 bmp D Figure 3 2 Model 110CS Rear Panel 3 4 SELECTING OUTPUT CURRENT VALUE 1 Connect the desired resistor to the PRGM output terminals located on the rear panel NOTE The output current 1 in relation to the programming resistor R in ohms is 1000 100 R milliamperes In Table 3 1 the calculated R and the closest standard 1 resistance values are given for various currents 2 Turn On Model 110CS by pressing red front panel POWER button 3 Adjust the PRGM ADJ trimmer located on the rear panel to compensate for variations in the programming resistor tolerance 3 2 Operation Lake Shore Model 110CS User s Manual Table 3 1 Output Currents and Corresponding 1 Programming Resistances Approximate Calculated R Closest Standard 1 Current O
3. 3 VA maximum It ships with a line cord P N 115 006 for 120 VAC operation Connect to rear panel power plug Turn the unit on by pressing the red POWER button on the front panel WARNING To prevent electrical fire or shock hazards do not expose this instrument to rain or excess moisture CAUTION Verify correct voltage configuration by checking the Line Voltage Selection Block on the Model 110CS rear panel do not use the current source at other than its marked voltage To change voltage configuration see Chapter 4 To protect operating personnel properly ground instrument panels and cabinets in accordance with local codes The 3 conductor power cable when plugged into an appropriate receptacle grounds the instrument Shield sensor cables whenever possible Attach the shields to the connector shield pin 2 4 LOAD CONNECTION Connect the load temperature sensor to the and OUT terminals on the Terminal Block on the rear panel Use proper shielding techniques to minimize line frequency AC noise on the leads This is more critical at low currents with high resistance 2 5 SENSOR INSTALLATION RECOMMENDATIONS Although the Model 110CS acts as a current source for any application it can provide the 10 pA excitation current for Lake Shore 400 Series 500 Series and TG 120 Diode Sensors Refer to the Lake Shore Temperature Measurement and Control Catalog for installation details and sensor specifications Call Lake Shore for
4. Features and Functions 3 1 3 2 Rear Panel Features and FUNCHions 3 2 3 3 Selecting Output Current Value 3 2 4 SERVICE ooann aE aE sacs sovaasurueit egteocte 4 1 4 0 Generali til uan lino 4 1 4 1 Fuse Replacement eene reeeenneresreee ne 4 1 4 2 Line Voltage Configuration nene neer eneee 4 2 Table of Contents Lake Shore Model 110CS User s Manual LIST OF ILLUSTRATIONS Figure No Title Page 2 14 Model 110CS Rack Mounting eerren 2 6 3 1 Model 110CS Front Panel eeeeeeeeeeneeeeeeneeeenneeeeeeas 3 1 3 2 Model 110CS Rear Panel 3 2 4 1 Fuse Replacement and Jumper Configurations 4 2 LIST OF TABLES Table No Title Page 1 1 Model 110CS Specifications nnne nene eenn nn renee ene 1 2 3 1 Output Currents and Corresponding 1 Resistances 3 3 Table of Contents Lake Shore Model 110CS User s Manual CHAPTER 1 INTRODUCTION 1 0 GENERAL Lake Shore Cryotronics Inc designed and manufactures the Model 110CS in the USA This chapter covers a general description in Paragraph 1 1 handling liquid helium and liquid nitrogen in Paragraph 1 2 electrostatic discharge in Paragraph 1 3 safety summary in Paragraph 1 4 and safety symbols in Paragraph 1 5 We welcome comments on this manual Although we try to keep it error free some may occur To report an err
5. and PRGM mode calibration in Paragraph 4 3 4 1 FUSE REPLACEMENT WARNING To prevent shock hazard turn off instrument and disconnect it from AC line power and all test equipment before replacing fuse 1 Turn POWER switch Off and disconnect power cord from unit Disconnect all test equipment from unit 2 Remove 2 screws securing rear panel to bottom of enclosure Gently pull away rear panel and remove enclosure cover by sliding it to the back 3 Remove fuse with a fuse puller The fuse is located behind the transformer as shown in Figure 4 1 4 Replace with a 0 2 A fuse for 110 V 115 VAC operation or a 0 1 A fuse for 220 V 230 VAC operation Use slow blow fuses CAUTION Replace fuse with the same type and rating as specified by the line voltage selected 5 Replace enclosure cover rear panel and all screws Service 4 1 Lake Shore Model 110CS User s Manual 4 2 LINE VOLTAGE CONFIGURATION The rear panel 3 pronged line power connector permits Model 110CS operation at either 110 or 220 VAC The configuration is indicated on rear panel in the Line Voltage Selection Block Use the procedure below to change line voltage WARNING To prevent shock hazard turn off instrument and disconnect it from AC line power and all test equipment before changing line voltage configuration 1 Turn power switch OFF and disconnect the power cord from the unit Disconnect all test equipment from unit 2 Remove 2 screws securing
6. hazard connect instrument chassis and cabinet to an electrical ground The instrument comes with a 3 conductor AC power cable Plug it into an approved three contact electrical outlet or use a three contact adapter with the green ground wire firmly secured to an electrical ground safety ground at the power outlet The power cable jack and mating plug meet Underwriters Laboratories UL and International Electrotechnical Commission IEC safety standards Do Not Operate In An Explosive Atmosphere Do not operate the instrument in the presence of flammable gases or fumes Operation of any electrical instrument in such an environment constitutes a definite safety hazard Introduction 1 5 Lake Shore Model 110CS User s Manual Keep Away From Live Circuits Operating personnel must not remove instrument covers Refer component replacement and internal adjustments to qualified maintenance personnel Do not replace components with power cable connected To avoid injuries always disconnect power and discharge circuits before touching them Do Not Substitute Parts Or Modify Instrument Do not install substitute parts or perform any unauthorized modification to the instrument Return the instrument to an authorized Lake Shore Cryotronics Inc representative for service and repair to ensure that safety features are maintained 1 5 SAFETY SYMBOLS Direct current power line Alternating current power line Alternating or direct current p
7. Place a capacitor across the diode to shunt induced AC currents Capacitor size depends on the noise frequency If noise is related to power line frequency use a 10 uF capacitor If AC coupled digital noise is suspected digital circuits or interfaces use a 0 1 to 1 uF capacitor In either case if measured DC voltage increases there is induced noise in the measurement system 2 Measure AC voltage across the diode with an AC voltmeter or oscilloscope Most voltmeters do not have the frequency response to measure noise associated with digital circuits or interfaces which operate in the MHz range For a thorough discussion of this potential problem and the magnitude of error which may result request the paper Measurement System Induced Errors In Diode Thermometry J K Krause and B C Dodrill Rev Sci Instr 57 4 661 April 1986 from Lake Shore To greatly reduce potential AC noise connect twisted leads pairs between the measurement instruments and the diode sensors Use 32 or 36 AWG Lake Shore Duo Twist Cryogenic Wire which features phosphor bronze wire twisted at 3 15 twists per centimeter 8 twists per inch See the Lake Shore Product Catalog or contact Lake Shore for further information 2 4 Installation Lake Shore Model 110CS User s Manual 2 6 RACK MOUNTING The Model 110 can install in a standard size 1 4 panel EIA rack space If you ordered a 2090 rack mounting adapter follow the installation instructions b
8. copies of application notes or sensor installation questions Although a sensor is not provided with the Model 110CS below are general recommendations on sensor installation 1 Do not ground the sensor 2 Shield leads and connect shield wire to SHIELD on screw terminal connector only Do not connect shield at other end of cable 3 Keep leads as short as possible 4 Use twisted pair wire Use Lake Shore Duo Twist wire or equivalent for 2 wire or Quad Twist wire or equivalent for 4 wire applications 5 Thermally anchor lead wires 2 2 Installation Lake Shore Model 110CS User s Manual 2 5 1 Connecting Leads To The Sensor Excessive heat flow through connecting leads to any temperature sensor may differ the temperature between the active sensing element and the sample to which the sensor mounts This reflects as a real temperature offset between what is measured and the true sample temperature Eliminate such temperature errors with proper selection and installation of connecting leads To minimize heat flow through the leads select leads of small diameter and low thermal conductivity Phosphor bronze or Manganin wire is commonly used in sizes 32 or 36 AWG These wires have a fairly low thermal conductivity yet electrical resistance is not large enough to create measurement problems Thermally anchor lead wires at several temperatures between room temperature and cryogenic temperatures to guarantee no heat conductio
9. copying recording or otherwise without express written permission of Lake Shore A Lake Shore Model 110CS User s Manual TABLE OF CONTENTS Chapter Paragraph Title Page 1 INTRODUCTION rien 1 1 1 0 General is o tiara TEE a 1 1 1 1 Model 110CS System Description 1 1 1 2 Handling Liquid Helium and Liquid Nitrogen 1 3 1 2 1 Handling Cryogenic Storage Dewars 1 3 1 2 2 LHe and LNo Safety Precautions 1 3 1 2 3 Recommended First Aid nenene 1 4 1 3 Electrostatic Discharge nee 1 4 1 3 1 Identifying ESDS Components 1 4 1 3 2 Handling ESDS Components 1 5 1 4 Safety SUMMAFY i 1 5 1 5 Safety SYyMbOIS i 1 6 2 VINSTALLATION ri iii cirie 2 1 2 0 General fidarti 2 1 2 1 Inspection and Unpacking 2 1 2 2 Repackaging For Shipment 2 1 2 3 Power and Ground Requirements 2 2 2 4 Load Connection i 2 2 2 5 Sensor Installation Recommendations 2 2 2 5 1 Connecting Leads to the Sensor 2 3 2 5 2 Sensor MOUNIIng 2 3 2 5 3 Measurement Errors Due To AC Noise 2 4 2 6 Rack Mounting 2 5 3 OPERATION 3 1 3 0 General uri 3 1 3 1 Front Panel
10. elow See Figure 2 1 1 Remove front feet on bottom of unit and attach lower rack piece by threading two of the four screws provided into the front feet holes 2 Locate the two mounting hole access covers on the top of the unit Attach the other rack with the remaining screws Installation 2 5 Lake Shore Model 110CS User s Manual ie 0 265 6 73 0 215 6 46 pe RERS 2 50 63 5 Hole Sizes A 0 189 0 480 Diameter 4 Places B 0 169 0 429 Diameter 2 Places Model 110CS Front Panel 1 50 38 10 T 1 25 31 75 35 58 4 18 106 17 C 110 2 1 eps Figure 2 1 Model 2090 Rack Mounting 2 6 Installation Lake Shore Model 110CS User s Manual CHAPTER 3 OPERATION 3 0 GENERAL This chapter describes front panel features and functions in Paragraph 3 1 rear panel features and functions in Paragraph 3 2 instructions for selecting output current value fixed ranges are provided in Paragraph 3 3 and program mode is discussed in Paragraph 3 4 3 1 FRONT PANEL FEATURES AND FUNCTIONS POWER Push to turn power to unit On Push again to turn power Off CMPL COMPLIANCE LED Compliance voltage is the maximum voltage that can be developed across the output terminals while maintaining the specified output current If output current reaches 11 volts the light flashes ON LED Illuminates when power to unit is On el akeShore 110 Current Source C 110 3 1 eps Figure 3
11. erials If there is freight damage to the instrument file proper claims promptly with the carrier and insurance company and notify Lake Shore Notify Lake Shore immediately of any missing parts Lake Shore cannot be responsible for any missing parts unless notified within 60 days of shipment See the standard Lake Shore Warranty on the A Page immediately behind the title page 2 2 REPACKAGING FOR SHIPMENT To return the Model 110CS or accessories for repair or replacement obtain a Return Goods Authorization RGA number from Technical Service in the United States or from the authorized sales service representative from which the product was purchased Instruments may not be accepted without a RGA number When returning an instrument for service Lake Shore must have the following information before attempting any repair Instrument model and serial number User name company address and phone number Malfunction symptoms Description of system Returned Goods Authorization RGA number IRUN Repack the system in its original container if available Affix shipping labels and FRAGILE warnings Write RGA number on the outside of the container or on the packing slip If not available consult Lake Shore for shipping and packing instructions Installation 2 1 Lake Shore Model 110CS User s Manual 2 3 POWER AND GROUND REQUIREMENTS The Model 110CS requires a power source of 90 to 125 or 210 to 250 VAC 50 or 60 Hz single phase
12. ering with warm water The patient should not drink alcohol or smoke Keep warm and rest Call a physician immediately 1 3 ELECTROSTATIC DISCHARGE Electrostatic Discharge ESD may damage electronic parts assemblies and equipment ESD is a transfer of electrostatic charge between bodies at different electrostatic potentials caused by direct contact or induced by an electrostatic field The low energy source that most commonly destroys Electrostatic Discharge Sensitive ESDS devices is the human body which generates and retains static electricity Simply walking across a carpet in low humidity may generate up to 35 000 volts of static electricity Current technology trends toward greater complexity increased packaging density and thinner dielectrics between active elements which results in electronic devices with even more ESD sensitivity Some electronic parts are more ESDS than others ESD levels of only a few hundred volts may damage electronic components such as semiconductors thick and thin film resistors and piezoelectric crystals during testing handling repair or assembly Discharge voltages below 4000 volts cannot be seen felt or heard 1 3 1 Identifying ESDS Components Below are some industry symbols used to label components as ESDS CAUTIO 108 1 4 Introduction Lake Shore Model 110CS User s Manual 1 3 2 Handling ESDS Components Observe all precautions necessary to prevent damage to ESDS components before ins
13. ght turns on when the output voltage reaches 11 volts Line Regulation lt 0 01 change in output for 10 change in line voltages within specified range see Power below Load Regulation lt 0 01 change in output current from 1 to 100 of compliance voltage AC Current Ripple lt 0 01 of scale 1 nA RMS in a properly shielded system GENERAL Ambient Temperature Range 15 35 C 59 95 F Power 90 125 or 210 250 VAC 50 or 60 Hz 3 VA Size 106 x 41 x 164 mm 4 2 x 1 6 x 6 5 inches Weight 0 5 kilograms 1 1 pounds NOTES 1 Electrical specifications given are for a unit operating at the factory at current output of 10 pA a different output current may affect some specifications Product Specifications are subject to change without notice Introduction Lake Shore Model 110CS User s Manual 1 2 HANDLING LIQUID HELIUM AND LIQUID NITROGEN Helium and Nitrogen are colorless odorless and tasteless gases They liquefy when properly cooled Liquid Helium LHe and liquid nitrogen LN2 may be used in conjunction with the Model 110CS Although not explosive there are certain safety considerations in the handling of LHe and LNo 1 2 1 Handling Cryogenic Storage Dewars Operate all cryogenic containers dewars in accordance with manufacturer instructions Safety instructions are normally posted on the side of each dewar Keep cryogenic dewars in a well ventilated place protected from the weather and away fr
14. hms Resistance Value Ohms 999 900 333 233 99 900 33 233 9 900 3 233 900 233 0 Use rear panel PRGM ADJ trimmer to adjust output current 5 The PRGM programming terminals have an internal 100 ohm resistor in series that limits current to 10 mA in the event of a short circuit across the PRGM terminals In this mode the total output current flows through the programming resistor Use a resistor with a power rating at least 10 times the power actually dissipated A 1 4 watt resistor suffices The programming resistor temperature coefficient affects output current thermal stability To maintain the 0 01 C temperature coefficient specification use a programming resistor with a temperature coefficient of 10 PPM C or better Programming resistor accuracy determines output current accuracy For example if a 1 MQ 1 resistor is used to program a 1 pA output current output current accuracy cannot be more than 1 In this case the built in 100 Q only contributes 0 01 difference The PRGM ADJ trimmer can compensate for variations in programming resistor tolerance and the internal 100 Q resistor Operation 3 3 3 4 Lake Shore Model 110CS User s Manual This Page Intentionally Left Blank Operation Lake Shore Model 110CS User s Manual CHAPTER 4 SERVICE 4 0 GENERAL This chapter covers Model 110CS maintenance with fuse replacement covered in Paragraph 4 1 line voltage configuration in Paragraph 4 2
15. ld gas issuing from it Protect eyes with full face shield or chemical splash goggles safety glasses even with side shields are inadequate Always wear special cryogenic gloves Tempshield Cryo Gloves or equivalent when handling anything that is or may have been in contact with the liquid or cold gas or with cold pipes or equipment Wear long sleeve shirts and cuffless trousers long enough to prevent liquid from entering shoes Introduction 1 3 Lake Shore Model 110CS User s Manual 1 2 3 Recommended First Aid Post an appropriate Material Safety Data Sheet MSDS obtained from the manufacturer distributor at every site that stores and uses LHe and LN2 The MSDS specifies symptoms of overexposure and first aid If a person exhibits symptoms of asphyxia such as headache drowsiness dizziness excitation excessive salivation vomiting or unconsciousness remove to fresh air If breathing is difficult give oxygen If breathing stops give artificial respiration Call a physician immediately If exposure to cryogenic liquids or cold gases occurs restore tissue to normal body temperature 98 6 F by bathing it in warm water not exceeding 105 F 40 C DO NOT rub the frozen part either before or after rewarming Protect the injured tissue from further damage and infection and call a physician immediately Flush exposed eyes thoroughly with warm water for at least 15 minutes In case of massive exposure remove clothing while show
16. lon spaghetti tubing over bare leads when the possibility of shorting exists Avoid putting stress on the device leads and allow for thermal contractions that occur during cooling which could fracture a solder joint or lead if installed under tension at room temperature For temporary mounting in cold temperature applications apply a thin layer of Apiezon N Grease between the sensor and sample to enhance thermal contact under slight pressure The preferred method for mounting the DT 470 SD sensor is the Lake Shore CO Adapter CAUTION Lake Shore will not warranty replace any device damaged by user designed clamps or solder mounting For semi permanent mountings use Stycast epoxy instead of Apiezon N Grease NOTE Do not apply Stycast epoxy over the DT 470 SD package as sensor stress may shift the readings In all cases periodically inspect the sensor mounting to verify good thermal contact to the mounting surface is maintained 2 5 3 Measurement Errors Due To AC Noise Poorly shielded leads or improperly grounded measurement systems can introduce AC noise into the sensor leads In diode sensors the AC noise shifts the DC voltage measurement due to the diode non linear current voltage characteristics When this occurs measured DC voltage is too low and the corresponding temperature reading is high The measurement error can approach several tenths of a kelvin To determine if this problem exists perform either procedure below 1
17. n through the leads to the sensor 2 5 2 Sensor Mounting Before installing a diode sensor identify DT 470 SD which lead is the anode and which is Diode Sensor Leads the cathode When viewed with the base down and the leads towards the observer the anode is on the right and the cathode is on the left The Lake Shore DT 470 SD silicon diode sensor e lead configuration is shown to the right cathode N Anode For other sensors read accompanying literature or consult the manufacturer to positively identify sensor leads Lead identification should remain clear even after sensor installation Record the sensor serial number and location On the DT 470 SD the base is the largest flat surface It is sapphire with gold metalization over a nickel buffer layer The base is electrically isolated from the sensing element and leads make all thermal contact to the sensor through the base A thin braze joint around the sides of the SD package electrically connect to the sensing element Avoid contact to the sides with any electrically conductive material When installing the sensor make sure there are no electrical shorts or current leakage paths between the leads or between the leads and ground If IMI 7031 varnish or epoxy is used it may soften varnish type lead insulations so that high resistance shunts appear between wires if sufficient time for curing is not allowed Installation 2 3 Lake Shore Model 110CS User s Manual Slide Tef
18. oduct is shipped freight prepaid Lake Shore will at its option either repair or replace the Product if it is so defective without charge to the owner for parts service labor or associated customary return shipping cost Any such replacement for the Product may be either new or equivalent in performance to new Replacement or repaired parts will be warranted for only the unexpired portion of the original warranty or 90 days whichever is greater 2 Lake Shore warrants the Product only if it has been sold by an authorized Lake Shore employee sales representative dealer or original equipment manufacturer OEM 3 The Product may contain remanufactured parts equivalent to new in performance or may have been subject to incidental use 4 The Warranty Period begins on the date of delivery of the Product or later on the date of installation of the Product if the Product is installed by Lake Shore provided that if you schedule or delay the Lake Shore installation for more than 30 days after delivery the Warranty Period begins on the 31st day after delivery 5 This limited warranty does not apply to defects in the Product resulting from a improper or inadequate maintenance repair or calibration b fuses software and non rechargeable batteries c software interfacing parts or other supplies not furnished by Lake Shore d unauthorized modification or misuse e operation outside of the published specifications or f improper site preparati
19. om heat sources 1 2 2 LHe and LN Safety Precautions Transfer LHe and LN2 and operate storage dewar controls in accordance with manufacturer supplier instructions During transfer follow all safety precautions written on the storage dewar and recommended by the manufacturer WARNING Liquid helium is a potential asphyxiant and can cause rapid suffocation without warning Store and use in an adequately ventilated area DO NOT vent the container in confined spaces DO NOT enter confined spaces where gas may be present unless area is well ventilated If inhaled remove to fresh air If not breathing give artificial respiration If breathing is difficult give oxygen Get medical attention WARNING Liquid helium can cause severe frostbite to exposed body parts DO NOT touch frosted pipes or valves For frostbite consult a physician immediately If a physician is unavailable warm the affected parts with water that is near body temperature Two essential safety aspects of handling LHe are adequate ventilation and eye and skin protection Although helium and nitrogen gases are non toxic they are dangerous because they replace air in a normal breathing atmosphere Liquid helium is an even greater threat because a small amount of liquid evaporates to create a large amount of gas Store and operate cryogenic dewars in open well ventilated areas When transferring LHe and LN2 protect eyes and skin from accidental contact with liquid or the co
20. on or maintenance 6 To the extent allowed by applicable law the above warranties are exclusive and no other warranty or condition whether written or oral is expressed or implied Lake shore specifically disclaims any implied warranties or conditions of merchantability satisfactory quality and or fitness for a particular purpose with respect to the product Some countries states or provinces do not allow limitations on an implied warranty so the above limitation or exclusion might not apply to you This warranty gives you specific legal rights and you might also have other rights that vary from country to country state to state or province to province 7 To the extent allowed by applicable law the remedies in this warranty statement are your sole and exclusive remedies 8 Except to the extent prohibited by applicable law in no event will lake shore or any of its subsidiaries affiliates or suppliers be liable for direct special incidental consequential or other damages including lost profit lost data or downtime costs arising out of the use inability to use or result of use of the product whether based in warranty contract tort or other legal theory and whether or not lake shore has been advised of the possibility of such damages Your use of the Product is entirely at your own risk Some countries states and provinces do not allow the exclusion of liability for incidental or consequential damages so the above limitation may no
21. or describe it briefly and include the appropriate paragraph figure table and page number Send comments to Lake Shore Cryotronics Attn Technical Publications 575 McCorkle Blvd Westerville Ohio 43082 8888 This manual is subject to change without notice 1 1 MODEL 110CS GENERAL DESCRIPTION The Model 110CS is an ideal current source for quick accurate stable outputs for sensor excitation or other applications Compliance voltage of 11 volts assures constant current under a wide range of load conditions The instrument features e 1 pA to 100 mA Output Current e Front panel OUTPUT switch to easily reverse polarity e Red CMPL light to alert user when compliance limit is reached e Capability for external resistor programming from 1 pA to 100 mA e Selectable output current in 1X and 3X increments The Model 110CS has a compliance voltage of 11 Volts allowing it to be used as an excitation source in a variety of diode sensor applications It also features a compliance LED visually indicates the unit is operating within specification Introduction 1 1 1 2 Lake Shore Model 110CS User s Manual Table 1 1 Model 110CS Specifications OUTPUT Output Current 10 pA factory preset Externally programmable from 1 uA to 10 mA Accuracy at 10 pA programming resistor determines accuracy 0 05 of output Temperature Coefficient output C ambient lt 0 01 of output per C Compliance Voltage 11 volts CMPL li
22. ower line Three phase alternating current power line Earth ground terminal Protective conductor terminal Frame or chassis terminal On supply Off supply Equipment protected throughout by double insulation or reinforced insulation equivalent to Class II of IEC 536 see Annex H Caution High voltages danger of electric shock Background color Yellow Symbol and outline Black Caution or Warning See instrument documentation Background color Yellow Symbol and outline Black Fuse i e O O Or ede 1 6 Introduction Lake Shore Model 110CS User s Manual CHAPTER 2 INSTALLATION 2 0 GENERAL This chapter covers inspection and unpacking in Paragraph 2 1 repackaging for shipment in Paragraph 2 2 power and ground requirements in Paragraph 2 3 load connection in Paragraph 2 4 sensor installation recommendations in Paragraph 2 5 and rack mounting in Paragraph 2 6 2 1 INSPECTION AND UNPACKING Inspect shipping containers for external damage Make all claims for damage apparent or concealed or partial loss of shipment in writing to Lake Shore within five 5 days from receipt of goods If damage or loss is apparent please notify the shipping agent immediately Open the shipping containers Use the packing list included with the system to verify receipt of the instrument sensor accessories and manual Inspect for damage Inventory all components supplied before discarding any shipping mat
23. rear panel to bottom of enclosure Gently pull away rear panel and remove enclosure cover by sliding it to the back 3 Modify jumper configuration to desired line voltage see Figure 4 1 4 Replace fuse to match new voltage requirements 5 Replace enclosure cover rear panel and all screws TRANSFORMER 115 VAC SETTING vt Ss Q lt o T a TRIMPOT 0 ELA 230 VAC SETTING P 110 4 1 bmp Figure 4 1 Fuse Replacement and Jumper Configurations 4 2 Service sy NOTES a Lake Shore is a technology leader in the development of cryogenic temperature sensors precision low temperature measurement and control instrumentation and magnetic measurement and test systems Since 1968 Lake Shore physicists material scientists and engineers have dedicated themselves to the development of tomorrow s technology today Lake Shore serves a worldwide network of Customers including university and national laboratories aerospace and other industries as well as many of the premier companies around the world
24. t apply to you 9 Except to the extent allowed by applicable law the terms of this limited warranty statement do not exclude restrict or modify and are in addition to the mandatory statutory rights applicable to the sale of the product to you CERTIFICATION Lake Shore certifies that this product has been inspected and tested in accordance with its published specifications and that this product met its published specifications at the time of shipment The accuracy and calibration of this product at the time of shipment are traceable to the United States National Institute of Standards and Technology NIST formerly known as the National Bureau of Standards NBS or to a recognized natural standard TRADEMARK ACKNOWLEDGEMENT Manufacturers and sellers claim many designations as trademarks to distinguish their products Where those designations appear in this manual and Lake Shore was aware of a trademark claim the designations appear in initial capital letters with a TM or symbol Apiezon is a trademark of Biddle Instruments CalCurve Cernox Duo Twist Quad Lead Quad Twist Rox and SoftCal are trademarks of Lake Shore Cryotronics Inc Teflon is a trademark of DuPont De Nemours Copyright 1993 1997 1999 and 2004 Lake Shore Cryotronics Inc All rights reserved No part of this manual may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photo
25. tallation Bring the device and everything that contacts it to ground potential by providing a conductive surface and discharge paths At a minimum observe these precautions 1 De energize or disconnect all power and signal sources and loads used with unit 2 Place unit on a grounded conductive work surface 3 Ground technician through a conductive wrist strap or other device using 1 MQ series resistor to protect operator 4 Ground any tools such as soldering equipment that will contact unit Contact with operator s hands provides a sufficient ground for tools that are otherwise electrically isolated 5 Place ESDS devices and assemblies removed from a unit on a conductive work surface or in a conductive container An operator inserting or removing a device or assembly from a container must maintain contact with a conductive portion of the container Use only plastic bags approved for storage of ESD material 6 Do not handle ESDS devices unnecessarily or remove from the packages until actually used or tested 1 4 SAFETY SUMMARY Observe these general safety precautions during all phases of instrument operation service and repair Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design manufacture and intended instrument use Lake Shore assumes no liability for Customer failure to comply with these requirements Ground The Instrument To minimize shock
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