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Lakeshore 335 User Manual Download Page 8

Model 335 Temperature Controller

2.7   PID Control   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2.7.1   Proportional (P)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.7.2   Integral (I) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.7.3   Derivative (D). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.7.4   Manual Output  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

2.8   Manual Tuning  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

2.8.1   Setting Heater Range  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2.8.2   Tuning Proportional  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2.8.3   Tuning Integral  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
2.8.4   Tuning Derivative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

2.9   Autotuning   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
2.10   Zone Tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
2.11   Thermoelectric Devices  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Chapter 3 

 

Installation

3.1   General   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3.2   Inspection and Unpacking   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3.3   Rear Panel Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.4   Line Input Assembly  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

3.4.1   Line Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.4.2   Line Fuse and Fuse Holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
3.4.3   Power Cord   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
3.4.4   Power Switch  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

3.5   Diode/Resistor Sensor Inputs   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

3.5.1   Sensor Input Connector and Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
3.5.2   Sensor Lead Cable   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
3.5.3    Grounding and Shielding Sensor Leads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
3.5.4   Sensor Polarity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.5.5   Four-Lead Sensor Measurement  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.5.6   Two-Lead Sensor Measurement   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3.5.7   Lowering Measurement Noise  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

3.6   Thermocouple Sensor Inputs (Thermocouple Model 3060)   . . . . . . . . . . . . . . . . . . . . . . . 35

3.6.1   Sensor Input Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
3.6.2   Thermocouple Installation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
3.6.3   Grounding and Shielding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

3.7   Heater Output Setup  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

3.7.1   Heater Output Description  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.7.2   Heater Output Connectors  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.7.3   Heater Output Wiring  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.7.4   Heater Output Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.7.5   Powering Output 2 Using an External Power Supply . . . . . . . . . . . . . . . . . . . . . . . . 37

3.7.5.1   Choosing a Power Supply   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.7.5.2   Power Supply Setup  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
3.7.5.3   Connecting to the Model 335  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
3.7.5.4   Programming Voltages Under 10 V  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Chapter 4 

 

Operation 

4.1   General   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

4.1.1   Understanding Menu Navigation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

4.2   Front Panel Description  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

4.2.1   Keypad Definitions   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

4.2.1.1   Direct Operation Keys  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
4.2.1.2   Menu/Number Pad Keys  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

4.2.2   Annunciators   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4.2.3   General Keypad Operation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Summary of Contents for 335

Page 1: ...s 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...

Page 2: ...r implied including but not limited to the implied warranties or conditions of merchantability and fitness for a particular purpose Specifically except as provided herein LakeShore undertakes no respo...

Page 3: ...nges made to the firmware FIRMWARE LICENSE AGREEMENT continued Under the terms of this agreement you may only use the Model 335 firmware as physically installedin the instrument Archivalcopies are str...

Page 4: ...Model 335 Temperature Controller...

Page 5: ...gory 9 equipment therefore falling outside the current scope ofthe RoHS directive However in recognition that RoHS compliance is in the best interest of our customers employees and the environment Lak...

Page 6: ...bles attached If the installation and operating instructions in the User s Manual are followed there should be no degradation in EMC performance This instrument is not intended for use in close proxim...

Page 7: ...Range 13 2 2 2 Sensor Sensitivity 13 2 2 3 Environmental Conditions 14 2 2 4 Measurement Accuracy 14 2 2 5 Sensor Package 14 2 3 Sensor Calibrations 14 2 3 1 Precision Calibration 15 2 3 2 SoftCal 15...

Page 8: ...ds 32 3 5 4 Sensor Polarity 33 3 5 5 Four Lead Sensor Measurement 33 3 5 6 Two Lead Sensor Measurement 34 3 5 7 Lowering Measurement Noise 34 3 6 Thermocouple Sensor Inputs Thermocouple Model 3060 35...

Page 9: ...ter 52 4 4 9 Input Name 53 4 4 10 Temperature Limit 53 4 4 11 Preferred Units 54 4 4 12 Max Min 54 4 5 Output and Control Setup 54 4 5 1 Heater Outputs 54 4 5 1 1 Heater Output Type Output 2 55 4 5 1...

Page 10: ...ilicon Diode Sensors 82 5 10 2 SoftCal Accuracy with DT 400 Series Silicon Diode Sensors 83 5 10 3 SoftCal With Platinum Sensors 83 5 10 4 SoftCal Accuracy With Platinum Sensors 84 5 10 5 SoftCal Cali...

Page 11: ...b 101 6 3 3 3 1 Download the driver 101 6 3 3 3 2 Extract the driver 101 6 3 3 3 3 Manually install the driver 102 6 3 3 4 Installing the USB Driver from the Included CD 103 6 3 4 Communication 104 6...

Page 12: ...trostatic Discharge Sensitive Components 141 8 11 2 Handling Electrostatic Discharge Sensitive Components 141 8 12 Model 3060 Installation 141 8 13 Firmware Updates 143 8 13 1 Updating the Firmware 14...

Page 13: ...end temperature controllers The Model 335 is the first two channel temperature controller available with user configurable heater outputs delivering a total of 75 W of low noise heater power 50 W and...

Page 14: ...controller you control from the world leader in cryogenic thermometry 1 1 1 Sensor Inputs The Model 335 offers two standard sensor inputs that are compatible with diode and RTD temperature sensors The...

Page 15: ...e 50 W and 25 W of continuous power respectively both to a 50 or 25 load For increased functionality Output 2 can also be set to voltage mode When set to voltage mode it functions as a 10 V analog out...

Page 16: ...ate application needs Here the input names are shown above the measure ment readings along with the designated input letters D Intuitive Menu Structure Logical navigation allows you to spend more time...

Page 17: ...e TG 120 PL 1 4 K to 325 K T 4 2 K B 5 T GaAlAs Diode TG 120 SD 1 4 K to 500 K T 4 2 K B 5 T Positive Tempera ture Coefficient RTDs 100 Platinum PT 102 3 14 K to 873 K T 40 K B 2 5 T 100 Platinum PT 1...

Page 18: ...mK 339 mK 3 6 mK 4 7 mK 8 8 mK 414 mK 17 K 52 K 280 K 46 mK Cernox CX 1050 SD HT6 with 1 4M calibration 1 4 K 4 2 K 77 K 420 K 26566 3507 2 205 67 45 03 48449 K 1120 8 K 2 4116 K 0 0829 K 20 K 196 K 1...

Page 19: ...ve 0 to 10 1 mA4 1 m 0 15 m 0 002 0 06 of rdg 0 01 m 0 001 of rdg C 0 3 m 0 to 30 300 A4 1 m 0 45 m 0 002 0 06 of rdg 0 03 m 0 0015 of rdg C 0 9 m 0 to 100 100 A4 10 m 1 5 m 0 01 0 04 of rdg 0 1 m 0 0...

Page 20: ...tically isolated from other circuits but not each other A D resolution 24 bit Input accuracy Sensor dependent refer to Input Specifications table Measurement resolution Sensor dependent refer to Input...

Page 21: ...utput zone open loop warm up monitor out D A resolution 15 bit 16 bit bipolar 15 bit unipolar 25 setting 50 setting N A Max power 25 W 25 W 1 W Max current 1 A 0 71 A 100 mA Voltage compliance min 25...

Page 22: ...lock out IEEE 488 2 Capabilities SH1 AH1 T5 L4 SR1 RL1 PP0 DC1 DT0 C0 E1 Reading rate To 10 rdg s on each input Software support LabVIEW driver contact Lake Shore for availability USB Function Emulat...

Page 23: ...Plug the power cable into an approved 3 contact electrical outlet or use a 3 contact adapter with the grounding wire green firmly connected to an electrical ground safety ground at the power outlet T...

Page 24: ...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...

Page 25: ...ry If an experiment is being done at liquid helium temperature a very high sensitivity is needed for good measurement resolution at that temperature That same resolution may not be required to monitor...

Page 26: ...temperature range as sensitivity can minimize the effect of most error sources Install the sensor properly following guidelines in section 2 4 Have the sen sor and instrument periodically recalibrate...

Page 27: ...nsors The standard inputs are limited to operation above 300 mK even with sensors that can be calibrated to 20 mK 2 3 2 SoftCal SoftCal is a good solution for applications that do not require the accu...

Page 28: ...f fer by more than three A flexible mounting scheme should be used or the parts will break apart potentially damaging them The thermal expansion or contraction of rigid clamps or holders could crush f...

Page 29: ...ress sensor packages Less perma nent mountings require some pressure to hold the sensor to its mounting surface Pressure greatly improves the action of gasket material to increase thermal conduc tivit...

Page 30: ...to cool the leads to a temperature as close to the sensor as possi ble This can be accomplished by putting a significant length of lead wire in thermal contact with every cooled surface between room t...

Page 31: ...oling power The resistive heater must be able to provide sufficient heating power to warm the system The Model 335 can provide up to 75 W of power from Output 1 up to 25 W of power from Output 2 in cu...

Page 32: ...stor in free air This power may need to be derated if used in a vacuum where con vection cooling cannot take place and it is not adequately anchored to a cooled sur face The Model 335 has a current li...

Page 33: ...ivity themselves but as sensors heaters sample holders etc are added to an ever more crowded space the junctions between parts are often over looked In order for control to work well junctions between...

Page 34: ...es in cooling power and sensor sensitivity are also sources of nonlinearity The cooling power of most cooling sources also changes with load temperature This is very important when operating at temper...

Page 35: ...n the Model 335 the integral term is not set in seconds like some other systems The integral setting can be derived by dividing 1000 by the integral seconds Isetting 1000 Iseconds 2 7 3 Derivative D T...

Page 36: ...24 cHAPTER 2 Cooling System Design and Temperature Control Model 335 Temperature Controller FIGURE 2 2 Examples of PID control...

Page 37: ...ture Do not leave the system unattended the heater may have to be turned off manually to prevent overheating If the load never reaches room tempera ture some adjustment may be needed in heater resista...

Page 38: ...s the Model 335 control algorithm to gradually eliminate the difference in tem perature by integrating the error over time See FIGURE 2 2 d An integral setting that is too low causes the load to take...

Page 39: ...rocess such as Stage 3 of 7 If the tuning process completes successfully then the message is removed and the new PID parameters are configured If the algorithm fails the mes sage stops blinking to ind...

Page 40: ...a Peltier device or a solidstate heat pump is a device that takes advantage of the Peltier effect When a DC current is applied to the device heat is transferred from one side of the device to the oth...

Page 41: ...with shipping companies Keep all damaged shipping materials and contents until instructed to either return or discard them Open the shipping container and keep the container and shipping materials un...

Page 42: ...making any rear panel connections This is espe cially critical when making sensor to instrument connections 3 4 Line Input Assembly This section describes how to properly connect the Model 335 to line...

Page 43: ...cord is included with instruments shipped to Europe a domestic power cord is included with all other instruments unless otherwise specified when ordered Always plug the power cord into a properly grou...

Page 44: ...3 5 3 Grounding and Shielding Sensor Leads The sensor inputs are isolated from earth ground to reduce the amount of earth ground referenced noise that is present on the measurement leads Connecting s...

Page 45: ...Lead Sensor Measurement All sensors including both 2 lead and 4 lead can be measured with a 4 lead tech nique The purpose of a 4 lead measurement is to eliminate the effect of lead resis tance on the...

Page 46: ...nectors are also a big source of error when making 2 lead measurements Con nector contact resistance is unpredictable and changes with time and temperature Minimize interconnections when making 2 lead...

Page 47: ...2 4 Consider the following when using thermocouples at low temperatures D Thermocouple wire is generally more thermally conductive than other sensor lead wire Smaller gauge wire and more thermal anch...

Page 48: ...is applied in one of three ranges high med or low Each range is one decade lower in power Refer to TABLE 4 11 for maxi mum current and power ratings into different heater resistance 3 7 2 Heater Outp...

Page 49: ...ore than 75 W is needed for either closed loop PID control warm up control or open loop operation This section describes choosing and installing an external supply Section 5 5 describes operation of t...

Page 50: ...present at their input when they are turned off This can happen if the Model 335 and power supply use a different source of line power or are turned on and off individ ually It can be avoided if the...

Page 51: ...the ratio of resistors R1 to R2 Vout 10 V R1 R1 R2 It is also important to keep the sum of R1 R2 1000 or the Model 335 output may not reach the output voltage setting due to internal overload protecti...

Page 52: ...40 cHAPTER 3 Installation Model 335 Temperature Controller...

Page 53: ...vention Explanation A Bold Typically the first word in the menu navigation is in bold type which indicates the first key you will need to press B Q The arrow indicates that the screen is advancing to...

Page 54: ...ss this key to adjust the Manual Output setting of the currently displayed output if applicable 4 5 1 7 5 All Off Press this key to set the range for all outputs to Off not applicable for Monitor Out...

Page 55: ...r value Pressing Escape Exit Menu will perform the Exit Menu function and will not cancel any previous setting changes D Number Entry allows you to enter number data using the number pad keys Num ber...

Page 56: ...simultaneously displays up to four readings 4 3 1 Display Modes The Model 335 provides four display modes designed to accommodate different instrument configurations and user preferences The display...

Page 57: ...The input display mode provides detailed information about an input sensor and the associated control loop if applicable and they are most commonly accessed by press ing the A and B on the keypad Thes...

Page 58: ...om Display Mode The custom display mode provides the ability to customize the displayed front panel information to your preference The display is divided into four quadrants Each quad rant can be inde...

Page 59: ...ol Catalog or visit our website at www lakeshore com Any unused input should be set to disabled Menu Navigation Input SetupQInput A or B QSensor Type Disabled Diode PTC RTD Platinum NTC RTD Cernox The...

Page 60: ...for the PTC resistor sensor type A resistance range selection is available in order to achieve better reading resolution Autorange is enabled by default in order to provide the best possible reading...

Page 61: ...ature gradient across a piece of voltage lead Thermal EMF voltages must exist because the sensor is almost never the same temperature as the instrument They can be minimized by careful wiring making s...

Page 62: ...room tem perature compensation is included for convenience section 4 4 6 2 and should be calibrated before use Room temperature compensation is enabled by default but can be turned off if external co...

Page 63: ...couple 6 Press Input Setup and select the corresponding sensor input Press Enter until the Room Calibration parameter appears then press until Yes appears press Enter to accept it 7 The current temper...

Page 64: ...dth One filter point corresponds to one new reading on that input A larger number of points does more smoothing but also slows the instrument s response to real changes in temperature The default numb...

Page 65: ...panel when the A or B keys are pressed identifying the respective sensor The input name can also be configured to be displayed when using the custom display mode Refer to section 4 2 3 for Alpha Numer...

Page 66: ...ut open loop This section describes how to operate the output and control features and how to set control parameters Each control parameter should be considered before turn ing on a control loop outpu...

Page 67: ...ent setting on Output 1 3 Apply this setting 1 732 A 75 W setting to get the desired 75 W output 4 Alternatively the User setting can be used for the Max Heater Output setting to set the maximum curre...

Page 68: ...SetupQOutput 1 or 2 Q QHeater Resistance 25 or 50 Output SetupQOutput 1 or 2 Q QMax Current User 0 707 A 1 A or 1 732 A Default Heater ResistanceQ25 Output 1 QMax Current 1 414 A Output 2QMax Current...

Page 69: ...cle Some systems require that the heater range is turned off when power is restored The power up enable feature allows the user to choose whether or not the heater range is turned off each time the in...

Page 70: ...ly used closed loop control mode for tightly controlling temperature using the heater outputs of the Model 335 In this mode the controller attempts to keep the load exactly at the setpoint temperature...

Page 71: ...front panel the Manual Output and Heater Range direct operation keys can be used for one touch access to these settings Refer to section 4 3 1 for details on configuring display modes Since there is...

Page 72: ...or B keys to temporarily display the control loop information while the new setting is entered Refer to section 4 3 for details on configuring the front panel display Menu Navigation PQ 0 to 1000 Def...

Page 73: ...front panel or over the computer interface In closed loop control mode Manual Output is added directly to the output of the PID control equation In effect the control equa tion operates about the Man...

Page 74: ...t entry For even greater protection the Temperature Limit feature can be used to turn off all heater outputs if a sensor reading above the specified temperature is observed Refer to section 4 4 10 for...

Page 75: ...with other features Setpoint ramps are often used with zone control mode As tempera ture is ramped through different temperature zones control parameters are auto matically selected for best control...

Page 76: ...panel A quick way to access the setting if the control loop information is not already displayed is to use the front panel A or B keys to temporarily display the control loop information while the new...

Page 77: ...ame ters related to the selected interface 4 6 1 USB The USB interface is provided as a convenient way to connect to most modern com puters as a USB interface is provided on nearly all new PCs as of t...

Page 78: ...press and hold Enter for 5 s Use the numeric keypad to enter the three digit lock code If the lock code is accepted Keypad Locked will be dis played for 3 s and the display will return to normal Chang...

Page 79: ...that prevents stable PI control Expect some overshoot or undershoot of the setpoint and stable temperature control below the setpoint value D Autotune PI sets values for both P and I parameters D is s...

Page 80: ...aseline for subsequent stages System response is too slow to Autotune or the new control parameters are caus ing instability in the control Use a smaller initial P value 5 Testing for temperature stab...

Page 81: ...ting a setpoint of 2 K with Setpoint Ramping turned On the setpoint will begin ramping at the current setpoint Ramp Rate then once the setpoint crosses 100 K the control parameters from Zone 7 will be...

Page 82: ...Med A High A D A B A A Heater Range A Off A Low Control Input A Default Proportional 0 1 1000 Integral 0 1 1000 Derivative 0 200 MHP Output 0 100 Ramp Rate 0 1 100 K min A C A Med A High A D A B A A H...

Page 83: ...information on scaling the output for voltages less than 10 V Menu Navigation Output SetupQOutput 2QOutput Type Voltage Q Polarity Bipolar Interface Command ANALOG 5 5 Warm Up Supply Warm Up Supply m...

Page 84: ...tion Output SetupQOutput 2QOutput Type Voltage Q Output Mode Warm Up Supply QControl Input A B QWarmup Control Auto Off Interface Command WARMUP D Continuous this mode implements what is often referre...

Page 85: ...ither unipolar or bipolar modes For example ifPolarity is set to Bipolar then settingthe Monitor Out 10V parameter to 0 K and the Monitor Out 10 V parameter to 100 K will cause the voltage output to c...

Page 86: ...mand ALARM 5 7 1 1 Alarm Annunciators The Alarm LED annunciator steadily displays when any alarm that is enabled also has the Visible parameter enabled The annunciator flashes when an alarm with the V...

Page 87: ...alarm setpoint and dead band in non latching operation With the high alarm setpoint at 100 K and the dead band at 5 K the high alarm triggers when sensor input temperature increases to 100 K and it w...

Page 88: ...s into a high alarm state If the Alarm to Follow parameter is set to Both the relay will energize if the configured Alarm Input sensor goes into either a low alarm or a high alarm state Menu Navigatio...

Page 89: ...the format parameter tells the instrument what breakpoint data format to expect Different sensor types require different formats Formats for Lake Shore sensors are described in TABLE 5 3 D Setpoint L...

Page 90: ...eader parameters are listed in TABLE 5 3 Typical curve parameters for common sensors are listed in TABLE 5 4 Read this section completely and gather all necessary data before beginning the process Sen...

Page 91: ...croll to the desired breakpoint number and press Enter The highlight moves to the sensor value of the selected pair 2 Use the Number Entry method to edit the value Refer to section 4 2 1 2 for details...

Page 92: ...value when you press the Enter key After editing adding or deleting all desired breakpoint pairs press Escape while the highlight is on a breakpoint number All breakpoint pair changes additions and d...

Page 93: ...red user curve location to copy to and press Enter 3 Choose Yes at the confirmation message to finalize the operation 4 To cancel the operation either choose No to the confirmation message or press Es...

Page 94: ...ably uniform sensing elements that exhibit precise monotonic and repeatable temperature response For example the Lake Shore DT 400 Series of silicon diode sensors have a repeatable temperature respons...

Page 95: ...s as follows 5 10 3 SoftCal With Platinum Sensors The platinum sensor is a well accepted temperature standard because of its consis tent and repeatable temperature response above 30 K SoftCal gives pl...

Page 96: ...o 480 K 5 10 5 SoftCal CalibrationCurve Creation Once the calibration data points have been obtained you may create a SoftCal cali bration To create a SoftCal calibration use this procedure 1 Press Cu...

Page 97: ...are capabilities of the previous model temperature controllers The Model 331 Emulation mode will trigger the output type setting for Output 2 to be configured to Voltage because the voltage output on...

Page 98: ...ion mode in order for the commands to be interpreted correctly 5 11 4 PID Scaling Mode The PID Scaling mode determines whether the Model 335 emulates the control scal ing of the Model 331 and Model 33...

Page 99: ...10 V and is capable ofproviding more than 25 W of power depending on the heater resistance When using the current source for Output 2 ensure that the power rating of the attached heater will not be ex...

Page 100: ...88 cHAPTER 5 Advanced Operation Model 335 Temperature Controller...

Page 101: ...signates to the devices on the bus which function to perform The Model 335 performs the functions of Talker and Listener but it cannot be a Bus Controller The Bus Controller is the digital computer th...

Page 102: ...niline command message asserts only a single signal line The Model 335 recognizes two of these messages from the Bus Controller Remote REN and Interface Clear IFC The Model 335 sends one uniline comma...

Page 103: ...programs and the instru ment issues responses Two or more command strings or queries can be chained together in one communication but they must be separated by a semi colon The total communication st...

Page 104: ...atched or buffered The register is read only 6 2 4 2 Event Registers Each register set includes an event register as shown in FIGURE 6 1 Bits in the event register correspond to various system events...

Page 105: ...Operation complete Not used Not used Not used PON CME EXE QYE OPC Not used Not used Not used OSB MSS ESB RQS MAV Not used Not used Not used Not used OSB CAL RAMP1 RAMP2 OVLD ALARM CAL RAMP1 RAMP2 OVLD...

Page 106: ...rvice Request Enable Register When a Ser vice Request Enable Register bit is set by the user and the corresponding summary bit is set in the Status Byte the RQS MSS bit of the Status Byte will be set...

Page 107: ...nd D Execution Error EXE Bit 4 this bit is set if an execution error has been detected This occurs when the instrument is instructed to do something not within its capabilities D Query Error QYE Bit 2...

Page 108: ...data has been corrupted D Autotune Done ATUNE Bit 5 this bit is set when the Autotuning algorithm is NOT active D New Sensor Reading NRDG Bit 4 this bit is set when there is a new sensor reading D Loo...

Page 109: ...quest Enable Register are set Once set the user may read and clear the bit in two different ways which is why it is referred to as both the RQS and the MSS bit When this bit goes fromlow to high the S...

Page 110: ...r to serial poll the instruments on the bus to identify which one requested service the one with bit 6 set in its status byte Serial polling will automatically clear RQS of the Status Byte Register Th...

Page 111: ...tional commands may be sent between the instrument and the bus controller while waiting for the initial pending operation to complete A typical use of this function would be to enable the OPC bit to g...

Page 112: ...to communicate properly with the Model 335 The proper configu ration parameters are listed in TABLE 6 5 The USB hardware connection uses the full speed 12 000 000 bits s profile of the USB 2 0 standa...

Page 113: ...essage stating the wizard has finished installing the software for Lake Shore Model 335 Temperature Controller will appear Click Finish to com plete the installation 6 3 3 3 Installing the Driver From...

Page 114: ...this will be between Network adapters and Ports COM LPT If the Other Devices item is not already expanded click the icon Lake Shore Model 335 should appear indented underneath Other Devices If it is...

Page 115: ...ete the installation 6 3 3 4 Installing the USB Driver from the Included CD The Model 335 USB driver is available on the included CD The following section describes the process of installing the drive...

Page 116: ...ssues command and query strings through user programs the instrument issues responses Two or more command or query strings can be chained together in one communication but they must be separated by a...

Page 117: ...to establish communication with the instrument or intermittent failures in communication 6 4 Command Summary This section provides a listing of the interface commands A summary of all the com mands is...

Page 118: ...ut Voltage Polarity Command 122 CRDG Celsius Reading Query 112 POLARITY Output Voltage Polarity Query 122 CRVDEL Curve Delete Cmd 112 PID Control Loop PID Values Cmd 121 CRVHDR Curve Header Cmd 112 PI...

Page 119: ...the command ESE 145 term 145 is the sum of the bit weighting for each bit ESE Event Status Enable Register Query Input ESE term Returned bit weighting term Format nnn Refer to section 6 2 5 for a lis...

Page 120: ...del number instrument serial Instrument serial number option card serial Option card serial number firmware version Instrument firmware version Example LSCI MODEL335 1234567 1234567 1 0 OPC Operation...

Page 121: ...ist of status flags STB Status Byte Query Input STB term Returned bit weighting term Format nnn Remarks Acts like a serial poll but does not reset the register to all zeros The integer returned repres...

Page 122: ...Valid entries 0 off 1 on visible Specifies if the Alarm LED on the instrument front panel will blink when an alarm condition occurs Valid entries 0 off 1 on Remarks Configures the alarm parameters fo...

Page 123: ...ut 10 0 V and 0 0 K at 0 output 0 0 V Remarks Use the OUTMODE command to set the output mode to Monitor Out The input parameter in the ANALOG command is the same as the input parameter in the OUT MODE...

Page 124: ...15 characters SN Specifies the curve serial number Limited to ten characters format Specifies the curve data format Valid entries 1 mV K 2 V K 3 K 4 log K limit value Specifies the curve temperature l...

Page 125: ...andard or user curve data point DFLT Factory Defaults Command Input DFLT 99 term Remarks Sets all configuration values to factory defaults and resets the instrument The 99 is included to prevent accid...

Page 126: ...n the entire twenty character line can be used allowing all fifteen sensor name characters to be displayed This command only applies to the readings displayed in the Custom display mode All other disp...

Page 127: ...ommand for description FILTER Input Filter Parameter Command Input FILTER input off on points window term Format a n nn nn input Specifies input to configure A or B off on Specifies whether the filter...

Page 128: ...ater output will be displayed in units of current Remarks Max current will be limited to 1 A on Output 1 if the heater resistance is set to 50 If the heater resistance is set to 25 on Output 1 then th...

Page 129: ...nput to query A or B Returned curve number term Format nn refer to command for description INNAME Sensor Input Name Command Input INNAME input name term Format a s 15 input Specifies input to configur...

Page 130: ...Sensor Example INTYPE A 2 1 0 1 1 term sets Input A sensor type to Platinum RTD autorange on thermal compensation on and preferred units to kelvin Remarks The autorange and range parameters do not ap...

Page 131: ...ock Command Input LOCK state code term Format n nnn state 0 Unlocked 1 Locked code Specifies lock out code Valid entries are 000 999 Remarks Locks out all front panel entries except pressing ALL OFF t...

Page 132: ...1 or 2 Returned value Format nnnnn term refer to command for description OPST Operational Status Query Input OPST term Returned bit weighting term Format nnn Remarks The integer returned represents th...

Page 133: ...using Input A for the control input sensor and will turn the output off when power is cycled Remarks Modes 4 and 5 are only valid for Output 2 in Voltage mode OUTMODE Output Mode Query Input OUTMODE o...

Page 134: ...rate value Specifies setpoint ramp rate in kelvin per minute from 0 1 to 100 The rate is always positive but will respond to ramps up or down A rate of 0 is interpreted as infinite and will therefore...

Page 135: ...the sum of the bit weighting of the input status flag bits A 000 response indicates a valid reading is present RELAY Relay Control Parameter Command Input RELAY relay number mode input alarm alarm ty...

Page 136: ...Specifies second sensor units point T3 value Specifies third temperature point in kelvin U3 value Specifies third sensor units point Remarks Generates a SoftCal curve Refer to Paragraph 5 3 Example SC...

Page 137: ...le TLIMIT B 450 term if the temperature of the sensor on Input B exceeds 450 K all control outputs will be turned off Remarks A temperature limit setting of 0 K turns the temperature limit feature off...

Page 138: ...nnnnn nnnnn nnnn nnnnn n n nnnn term output Specifies which heater output to configure 1 or 2 zone Specifies which zone in the table to configure Valid entries are 1 10 upper bound Specifies the upper...

Page 139: ...with U S power cord and universalEuro line cord and fuses for 220 240 VAC setting Other country line cords available consult Lake Shore TABLE 7 2 Power configurations Model Description of Options 306...

Page 140: ...er The heater features precision wound nickel chromium resistance wire magnesium oxide insulation two solid pins non magnetic package and has UL and CSA com ponent recognition The heater is25 6 35 mm...

Page 141: ...panel handles and screws that adapt the front panel to fit into a 88 9 mm 3 5 in tall full rack space Refer to FIGURE 7 2 for installation details Ensure that there is a 25 mm 1 in clearance on both...

Page 142: ...Calibration for the option is stored on the card so it can be installed in the field and used with multiple Model 335 temperature controllers without recalibration FIGURE 7 2 Model RM q rack mount kit...

Page 143: ...1 6 kg 3 5 lb The Model 3003 is a passive filter and requires no external power supply The High and Low terminals on the controller must be connected to the High and Low termi nals marked From Contro...

Page 144: ...132 cHAPTER 7 Options and Accessories Model 335 Temperature Controller...

Page 145: ...message string at one time including the terminator Many terminal emulation programs do not 7 Send only one simple command at a time until communication is established 8 Be sure to spell commands cor...

Page 146: ...e delay between all commands to 50 ms to make sure the instrument is not being overloaded 8 4 Fuse Drawer The fuse drawer supplied with the Model 335 holds the instrument line fuses and line voltage s...

Page 147: ...ly on visual inspection of the fuse 1 Locate the line input assembly on the instrument rear panel See Figure 8 2 2 Turn the power switch Off O 3 Remove the instrument power cord 4 With a small screwdr...

Page 148: ...Off Alarm Off Input units Kelvin Relay Default Curve DT 670 Relay Off Input setup diode Default Keypad locking Default Range 2 5 V Silicon Mode Unlocked Diode current 10 A Lock code 123 Input setup pl...

Page 149: ...Temp Limit on Input A The temperature reading on a sensor input has exceeded the Temperature Limit setting Temp Limit on Input B Keypad Locked An attempt has been made to change a parameter while the...

Page 150: ...and IEEE 488 connectors are defined in FIGURE 8 3 through FIGURE 8 7 For thermocouple connector details refer to FIGURE 3 7 FIGURE 8 3 Sensor input A and B Pin Symbol Description 1 I Current 2 V Volt...

Page 151: ...utput 2 3 Relay 1 normally closed 4 Relay 1 common 5 Relay 1 normally open 6 Relay 2 normally closed 7 Relay 2 common 8 Relay 2 normally open TABLE 8 4 Terminal block pin and connector details FIGURE...

Page 152: ...ctor pin location and signal names as viewed from the Model 335 rear panel FIGURE 8 7 IEEE 488 interface Pin Symbol Description 1 DIO 1 Data input output line 1 2 DIO 2 Data input output line 2 3 DIO...

Page 153: ...he device and everything that contacts it to ground potential by providing a conductive surface and discharge paths As a minimum observe these precautions D De energize or disconnect all power and sig...

Page 154: ...option plate screws these screws are not used for the rest of the installation Remove the rear panel o 5 ption plate 6 Lay the instrument on its feet and turn it to view the inside circuit board 7 Pl...

Page 155: ...rator 15 Replace the power cord in the rear of the unit and set the power switch to On 16 To verify option card installation check the instrument information Refer to sec tion 8 7 2 for more informati...

Page 156: ...sides of the instrument in a sturdy corrugated cardboard box Please use reasonable care when removing the temperature controller from its protective packaging and inspect it carefully for damage If i...

Page 157: ...o be made prepaid by the customer Equipment serviced under warranty will be returned prepaid by Lake Shore Equipment serviced out of warranty will be returned FOB Lake Shore 8 14 5 Restocking Fee Lake...

Page 158: ...146 cHAPTER 8 Service Model 335 Temperature Controller...

Page 159: ...sh astronomer D Fahrenheit abbreviation F A temperature scale that registers the freezing point of water as 32 F and the boiling point as 212 F under normal atmospheric pressure Originally devised by...

Page 160: ...133 15 58 50 223 15 382 230 43 15 219 67 139 82 133 33 50 45 56 227 59 380 228 89 44 26 210 134 44 138 71 49 67 45 37 227 78 379 67 228 71 44 44 209 67 134 26 138 89 45 67 43 15 230 370 223 33 49 82 2...

Page 161: ...must be operated in accordance with the manufac turer instructions Safety instructions will also be posted on the side of each Dewar Cryogenic Dewars must be kept in a well ventilated place where the...

Page 162: ...with side shields are not adequate 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 w...

Page 163: ...96 7 445 0 0 16221 36 130 0 0 91243 65 025 0 1 12463 8 440 0 0 17464 37 125 0 0 92317 66 024 0 1 13598 9 435 0 0 18710 38 120 0 0 93383 67 023 0 1 15558 10 430 0 0 19961 39 115 0 0 94440 68 022 0 1 17...

Page 164: ...3 58 19 0 893230 148 0 44 1 12340 24 3 69 1 60756 3 18 20 0 914469 137 5 45 1 12589 24 0 70 1 62125 2 62 21 0 934356 127 5 46 1 12913 23 7 71 1 62945 2 26 22 0 952903 118 0 47 1 13494 23 3 72 1 63516...

Page 165: ...223 075 0 192 23 12 085 0 23 525 085 0 235 25 13 105 0 32 081 105 0 320 81 14 140 0 46 648 140 0 466 48 15 180 0 62 980 180 0 629 80 16 210 0 75 044 210 0 750 44 17 270 0 98 784 270 0 987 84 18 315 0...

Page 166: ...8 1 23 16 3 03078 24 9 51 3 08175 7 90 86 3 34846 1 130 17 3 03176 24 0 52 3 08447 7 60 87 3 37196 1 020 18 3 03280 23 1 53 3 08786 7 25 88 3 39220 0 935 19 3 03393 22 2 54 3 09150 6 90 89 3 41621 0 8...

Page 167: ...800 15 3 37191 23 2 48 3 44230 5 94 81 3 69095 0 725 16 3 37377 22 2 49 3 44593 5 62 82 3 71460 0 645 17 3 37575 21 2 50 3 44984 5 30 83 3 73889 0 575 18 3 37785 20 2 51 3 45355 5 02 84 3 76599 0 510...

Page 168: ...1 70801 315 5 163 37 14 1168 5 23 6 41442 20 8 70 5 26348 107 5 117 2 14052 326 164 37 7596 1184 24 6 40952 21 9 71 5 19928 110 5 118 2 69954 339 5 165 38 3767 1199 5 25 6 40435 23 72 5 13359 113 5 11...

Page 169: ...9 699960 25 00 80 6 155400 152 00 134 12 5253 461 00 27 9 686220 26 30 81 6 008740 155 50 135 13 188 470 00 28 9 671890 27 60 82 5 859960 159 00 136 13 892 479 50 29 9 655790 29 00 83 5 687430 163 00...

Page 170: ...00 81 3 728520 160 50 136 7 455590 438 00 27 6 159280 26 30 82 3 633620 164 00 137 7 814630 445 00 28 6 149830 27 60 83 3 537260 167 50 138 8 176630 452 00 29 6 139220 29 00 84 3 439460 171 00 139 8...

Page 171: ...13 4 2018 36 3 44 0 426646 294 5 14 4 02151 49 8 45 0 546628 300 5 15 3 94549 55 4 46 0 858608 316 16 3 87498 60 5 47 0 938667 320 17 3 80464 65 5 48 1 3456 340 18 3 73301 70 5 49 1 7279 358 5 19 3 6...

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