User Manual A. Introduction B. Specifications
Contents
1. Setting parameter values SL This group of parameters is accessed by input code 155 Figure 4 is ee a the flow chart that shows how they can be changed SP S Press and hold SET key for 4 seconds until Parameter Window oA j0 displayed LCK Release the SET The display will show 0 Use O amp keys to adjust the display to 155 another pass code and press moo oa ET P amp Setting the calibration offset The parameter window will first show Cool gt d SC for a second and then its value Use and keys to change ce the setting When finished press the SET a to confirm the change out ae For example if the temperature is 1 C too high during calibration then use to set the value to 1 to offset value az Setting the output reduction The parameter window will first show A OUt for a second and then its value Use and keys to change Y OUt value to your desired limit value and press SET Setting Celsius C or Fahrenheit F When SET is pressed the Figure 4 Code 155 Parameter setup flow chart Doccol Corporation 30 Eisenhower Drive Sharon MA 02067 2427 Tel 888 481 0842 Fax 888 893 5285 www doccol com Doccol PID Temperature Controller Model WS1500EB display will show C F and then its value of either C or F Press for C or for F The setting for AL FA oAL Hy Cool and TK are similar as the re2. controller performance settings The controller is pre tuned to work with our heating pad You may use the auto tuning function to let the controller to determine the PID parameters for other heaters automatically Auto tuning function its often known as self tuning can automatically optimize the PID parameters for your chosen heating system The auto tuning function will heat up your heater then let it cool down lt will repeat this heat cool cycle several times Based on the response time of the whole heating system the controller will calculate and set the PID parameters for your heater Before using the auto tune function you must set the heating equipment up in the exact configuration it should be used If the heater has its own thermostat or power control turn both as high as they ll go Set the controller to the appropriate power level see next Section Turn the controller and heater on and then enter the desired target temperature close to your normal use temperature To activate auto tuning just enter code 166 to get into the PID setting menu Set AF to 1 then exit the menu see Figure 3 The display will start to flash alternately between AI and current temperature which indicates auto tuning is in progress When the Figure 3 Code 166 parameter setup display stops flashing the auto tuning is finished Now the newly calculated PID parameters are set and are used for the system The new parameters will store in the memory ev
3. how to install and remove the sensor 3 Operating the controller 3 1 Setting the temperature Press SET key twice Both 1 and 2 will start to flash The LED shows the current temperature setting Use and keys to change the setting When finished press the SET again to confirm the change Note the temperature setting will not be changed if SET is not pressed confirmed The display will return to the normal display mode if no key is pressed within 3 seconds 3 2 Switching the display between temperature and time This is done by pressing the Time Key 6 once When 8 is on lit and 9 is flashing at the same time the LED is in timer mode and shows the actual time passed since the controller was last powered on When 8 is off not lit the LED is in temperature mode and shows the current sensor temperature 3 3 Setting the timer Press SET key once and release it both 1 and 8 will start flashing The LED shows the current timer setting in minute Use the and keys to change the timer setting When finished press the SET again to confirm the change Note the timer setting will not be changed if SET is not pressed confirmed The display will return to the normal display mode if no key is pressed within 3 seconds If you set the timer for 20 hours the controller will stop sending power to the heater 20 hours after it is powered up It will di
4. 8 0 to 750 0 F Temperature accuracy 0 1 C or 0 2 F for 0 85 C 32 0 to 185 0 F Dimension 6x3x7 inch 155 x80x180 mm W x Hx D Weight 2 8 Ib 1 5 kg Warranty 1 year for controller and sensor Doccol Corporation 30 Eisenhower Drive Sharon MA 02067 2427 Tel 888 481 0842 Fax 888 893 5285 www doccol com Doccol PID Temperature Controller Model WS1500EB C Operating Instruction 1 Description of the controller Sensor Power To Power To k To on off outlet Heater Sensor Figure 1 Front left and back right Panels 1 Parameter Window LED displays temperature values and controller s system parameters 2 Output status indicator In normal mode this LED indicates the heater status When it is on lit the heater is powered When it is off the heater power is off When it is flashing it means the heater is on and off intermittently to reduce the power output 3 SET Key press to show current temperature timer settings get into parameters setting mode and confirming various actions taken 4 Key press to increase displayed value 5 _ Key press to decrease displayed value 6 Time Key press to change the Parameter Window s display between current timer and temperature values 7 Alarm indicator Lit when the alarm is on 8 Timer status indicator In normal mode when 8 is on and 9 is flashing LED shows the time passed
5. Doccol PID Temperature Controller Model WS1500EB User Manual Version 1 1 Doccol Corporation 30 Eisenhower Drive Sharon MA 02067 2427 Tel 888 481 0842 Fax 888 893 5285 www doccol com July 2013 A Introduction Thank you for purchasing the Doccol WS series temperature controller We sincerely appreciate your decision and believe that our machine will meet your expectations in product quality and experimental results We are delighted to provide this manual that will serve as guidance for operating this controller In particular we would urge you to read through the safety warnings below although this plug and play controller is very easy to operate your safety is paramount JIN SAFETY WARNINGS e This controller was designed to be used only with selected heating devices that have limited power and their own thermal cut off protection such as a thermostat or thermal fuse in case of controller failure Do not use it with an untested device e Do not place any objects on the top of controller surface that is used to vent excess heat during its operation e The maximum electric current this controller can handle is 15 ampere For 120 volt AC in US and Canada this limits the heater power to1800 watts e Always place the temperature sensor in the right position the rodent rectum or the surface of a heating pad when the controller is on and connected to heating device Leaving the sensor elsewhere will form an open loop operation c
6. al parameters by accident User has to enter the code 166 to access the parameter setting menu Figure 3 e P Proportional band It is in 0 1 degree unit This parameter control the output of the controller based on the difference between the measured and set temperature Larger the P number means the weaker the action lower gain When the sensor temperature is 10 degrees below the proportional band 10 degrees below the setting the controller will have 100 output When the temperature is 5 degree below the set point the output is 50 When the temperature is equal to the setting the controller will have 0 output assuming integral and derivative functions are turned off This constant also affects both integral and derivative action Smaller P values will make the both integral and derivative action stronger Please note the value of the P is temperature unit sensitive If you found an optimized P value when operating the controller in Celsius you need to multiply the P by 1 8 when changing the temperature unit to Fahrenheit e Integral time The unit is in second This parameter controls the output of controller based on the difference between the measured and set temperature integrated with time Integral action is used to eliminate temperature offset Larger number means slower action When temperature fluctuates regularly system oscillating increase the integral time Decrease it if the controller is taking too long to eliminate the te
7. der ea 155 parameter is used to make the ymbol input offset to compensate the Ofceridearese 20 0 420 0 error produced by sensor Each Alarm Setting 58 0 4392 0 F 40 unit is 0 1 degree e g if the L Alarm Seting 20o t2000 E A O off Tzon ice water mixture se D will make the display to shown 0 Ozoli t on _ 0 0 degree Hy Hysteresis band __ 1000 3 e AL n emocu in COOL Control mode heating or coolino O0 heat 1 cool oo fies When th P Output power reduction 1 100 seach artnet OE Temperate unt a Ie ee ee Enable disable timer function 1 on O of 1 turned on When temperature drops to that value the LED and buzzer will be turned off The alarm is for high limit alarm only It will not shut off the out e FA Alarm buzzer control When FA 1 the buzzer will be on when alarm LED is lit When the FA 0 the buzzer will not be turned on at the alarm temperature e OAL Open loop alarm This parameter is for detecting an open loop in the control system e g if the sensor was forgotten to be inserted in the oven or the sensor is defective or the heater is defective When enabled oAL 1 it will shut off the output if the temperature increased less than 3 C 5 F after the controller is powered up for 5 minutes The alarm buzzer will be turned on at the same time The display will flashing OPEN oPEn e Hy Hysteresis band or dead band This parameter is used for on off control
8. en the power is off Doccol Corporation 30 Eisenhower Drive Sharon MA 02067 2427 Tel 888 481 0842 Fax 888 893 5285 www doccol com Doccol PID Temperature Controller Model WS1500EB Important You should always write down your old PID parameters before letting the controller to perform auto tuning The P I and D parameters have been pre set to 45 200 and 250 respectively This way if something goes wrong you can always go back to your old PID parameters Basically you must setup your heating system close to your actual heating environment The duration of auto tuning depends on how fast the system is responding to the heating and cooling cycle If the temperature of the heater takes a long time to drop when heater is off the auto tuning could be a very long tuning process This is especially true with a well insulated heater The auto tuning should be able to tune most of your chosen with fairly good result 3 Manual input of PID parameters The controller parameters are divided into two groups The first group of parameters is related to the control performance They need to be adjusted based on the system to be controlled If you have tried auto tune and the parameters we provided but feel the performance is not ideal the following sections discuss the definition of these parameters and how to change them 3 1 Details about each parameter e LCK Parameter lock This function is used to prevent user to change the critic
9. he change e The display will show the I for a second and its setting value next use the same P setting procedure to set the value When finished press the SET again to confirm the change e The display will show the d for a second and its value next Use the same P setting procedure to set the d value When finished press the SET again to confirm the change e The next setting is AT the auto tune Use to set the value to 1 and press SET will activate the auto tune e The next setting is the t setting use and to set the cycle time value This value should remain 2 for most application e After change the PID parameter the controller needs to be turned off and on again for the best result Doccol Corporation 30 Eisenhower Drive Sharon MA 02067 2427 Tel 888 481 0842 Fax 888 893 5285 www doccol com Doccol PID Temperature Controller Model WS1500EB E Other system parameters The second group is about the system configuration and set up Once they are set they normally do not need to be changed This group of parameters can be accessed by input code 155 If you don t want your system be altered by other person do not let other people know this code Table 2 shows the list of the parameters their range and initial set value when left the factory Details about each parameter e SC calibration offset The Table 2 List of control parameters and the initial settings un
10. mperature offset When I 0 the system becomes a PD controller e d Derivative time The unit is in second Derivative action contributes the output power based on the rate of temperature change Derivative action can be used to minimize the temperature overshoot by responding its rate of change The larger the number is the faster the action will be The derivative action change the controller output based on the rate of change rather than the net amount of change This will allow the controller to act sooner It will turn the heater to full power before the Table 1 Initial settings under code 166 eee me e x se its 4 ee Proportional band in 0 1 degree 0 600 e T cycle rate The unit is in second This unit determines how long for the controller to __ Integral constant second 0 900 ae each eee ole Ares da o Derivative constant second 0 300 should remain a second for almost a applications o off1 on 0 Cycle rate second 1 100 2 3 2 Setting parameter values e Press and hold SET key for 4 seconds until LED display LCK and then release the SET key The display will show 0 To get into parameters setting mode you need to key in the pass code Use and keys to adjust the display to 166 which is the pass code and press SET e The LED will show P for a second and then its P setting value Use and keys to change the setting When finished press the SET again to confirm t
11. only In the on off heating mode the heater will be turned off when T SV and turned on again when T lt SV Hy e g If SV 100 C Hy 3 0 C the heater will heat until temperature reaches 100 0C It will be turned on again when temperature drops below 97 0 C For the cooling mode the compressor will be turned off when T SV It will be on again when T gt SV Hy e CooL When Cool 0 the controller is set for heating control reverse action When Cool 1 the controller is set for cooling control direct action e Out Output power reduction It is expressed as a percentage value This function will allow you to control the maximum output power delivered by the heater For example if you set Out 50 and your heater is 1000 watts the output will use 50 of the 1000 watts as the full output It thinks the 1000W heater as a 500W heater When the PID algorithm determines 50 output value the actual power output will be 250 watts e C F Display unit setting You can set the display either Celsius or Fahrenheit e 1K Timer When TK is set to 1 the timer is on If you want the controller stays on without turning of by itself amp amp 30 LC amp 155 sc 0 3sec SIP S y al 250
12. ontroller will assume the temperature is low and will provide full power to the heater even if the heating pad is already over heated e The power cord provided with controller is specially designed for high power applications Do not replace it with regular computer power cord e This controller is designed to control devices recommended by Doccol Corporation only Using it to control a not recommended device can be dangerous and cause fire Doccol Corporation is not liable for damages caused by misuse of the controller e If an abnormal display or noise is observed turn the controller off unplug the power cord and contact the manufacturer before using it again e Clean the controller only when it is cool and unplugged B Specifications Input voltage 100 to 240 VAC 50 60 Hz Output voltage Same as the input Maximum Current 15A at 120V 10A at 240V Fuse Size 15A Fast blow Control Action Heating reversed action or cooling direct action Control Mode PID Pl PD P or On off Output switching device Built in optically isolated solid state relay with zero voltage crossing witching Sensor type Pt100 RTD sensor Sensor tip dimensions Beaded head diameter 3 mm shaft diameter 1 5 mm shaft length 3 cm Sensor cable length 3 3 ft 1 0 m Alarm High limit alarm and Open loop alarm with LED and buzzer Timer Range 1 to 9999 minutes Temperature resolution 0 1 C or 0 1 F Temperature display range 50 0 to 400 0 C or 5
13. since it s powered on 9 Mode indicator the small dot if it is lit and flashing the value displayed in the Parameter Window is time else it is temperature When it is flashing and 8 stays on 1 is the time that has elapsed since it s powered on When it is flashing 8 is off the controller is in the parameter setting mode 1 is the value can be changed by using 4 and 5 key 2 Connecting the controller The connection of controller should be done in the following steps 1 Plug the temperature sensor to the back of the controller 2 Plug the power cord to the power outlet on the wall 3 Turn on the controller to make sure the controller powers up properly The temperature display is in the range expected Then turn off the controller 4 Plug the heater to the back of the controller If the heater has a switch put it in the off position Put the sensor inside the container to be controlled 5 Turn on the controller 6 Turn on the heating device Figure 2 Maneuvers to install left and remove right the sensor Remark The connector of sensor contains a slot for correct pin connection It also has a spring lock to prevent Doccol Corporation 30 Eisenhower Drive Sharon MA 02067 2427 Tel 888 481 0842 Fax 888 893 5285 www doccol com 2 Doccol PID Temperature Controller Model WS1500EB disconnect by accidentally pulling on the cable Figure 2 below shows
14. splay End on the window and send an audio beeping sound Turning off the power and on again will reset the timer D Performance Configuration This controller is shipped with parameters set for in vivo rodent surgery using 50W AC heating pad for maintaining rectal temperature set at 37 5 C You may need to change these parameter values if you use it on other animal strains or connect to different heating device 1 Auto Tune The controller s most powerful feature is its ability to regulate virtually any heater with stable temperature control For stable temperature control the controller requires two things 1 the controller must be set to the correct power level See next section and 2 that it must be tuned to the heater being used Tuning is the process that matches the control characteristics of the controller to the heating characteristics of the heater The controller is said to be tuned to the heater when its memory is programmed with values telling it how fast the heater warms up cools off and how efficiently it transfers heat Describing how fast the heater heats when electricity is turned on and how fast it begins to cool when it s turned off These time constants are called the tuning parameters Every type of heater has its own unique set of tuning parameters For the controller to heat with stability it must have been programmed with the tuning parameters for the heater to be used 2 Use auto tune function to optimize
15. st of parameters F Warranty Doccol Corporation warrants this controller to be free from defects in materials and workmanship for a period of one 1 year from the date of the original purchase when the device is utilized under normal condition The sensor of the controller is warranted for 90 days This warranty is subject to the following conditions lf the appliance is found to be defective in material or workmanship by Doccol Corporation we will repair or replace it free of charge A dated proof of purchase may be required Doccol Corporation s liability is limited solely to the cost of the repair or replacement of the unit at our discretion This warranty does not cover normal wear of parts and does not apply to any unit that has been tampered with or used for commercial purposes This limited warranty does not cover damage caused by misuse abuse negligent handling or damage due to faulty packaging or mishandling in transit This warranty does not cover damage or defects caused by or resulting from damages from shipping or repairs service or alterations to the product or any of its parts which have been performed by a repairperson or facility not authorized by Doccol Corporation This warranty is available to the original purchaser of the unit and excludes all other legal and or conventional warranties The responsibility of Doccol Corporation if any is limited to the specific obligations expressly assumed by it under the terms of the limi
16. ted warranty In no event is Doccol Corporation liable for incidental or consequential damages of any nature whatsoever Some states provinces do not permit the exclusion or limitation of incidental or consequential damages and therefore the above may not apply to you This warranty gives you specific legal rights and you may also have other rights that vary from state to state or province to province Important Carefully pack item to avoid damage in shipping Be sure to include proof of purchase date and to attach a tag to item before packing with your name complete address and phone number with a note giving purchase information model number and what you believe is the problem with the item We recommend you insure the package as damage in shipping is not covered by your warranty Mark the outside of your package ATTENTION CUSTOMER SERVICE We are constantly striving to improve our products and therefore the specifications contained herein are subject to change without notice Doccol Corporation 30 Eisenhower Drive Sharon MA 02067 2427 Tel 888 481 0842 Fax 888 893 5285 www doccol com
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