THORLABS LK220 Скачать руководство пользователя страница 22 | Manualshive

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Liquid Chiller

Rev A, December 6, 2019

Page 19

Chapter 6 Maintenance

6.1. Fuse Replacement

The fuse is located in the fuse drawer below the power inlet (B1 in Figure 1). To replace the fuse, press the two
clips on the drawer and pull it out.

Take out the used fuse and put in the new one. Please use Ø5 mm x 20 mm, 10 A, 250 VAC, Type "F", fast
blow fuse only.

6.2. Draining The Reservoir

The reservoir of the LK220 needs to be drained before shipping the chiller.

Before draining, open the hatch and remove the cap on the reservoir. Connect a small length of open tube on
both the “coolant In” and “coolant out”. Slightly lift the front side the chiller and wait until all coolant flows out
from the open end of the tubes.

Figure 11 Draining the Reservoir

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Содержание LK220

Страница 1: ...LK220 Thermoelectric Liquid Chiller User Guide ...

Страница 2: ......

Страница 3: ... 2 3 Menu 8 4 2 4 Status Display 9 4 3 I O 9 4 4 LED Indicator 10 4 5 Connecting an External Sensor 10 4 6 Software Operation 11 4 7 Dust Filter 11 Chapter 5 Command Line Operation 12 5 1 Description of Commands 14 Chapter 6 Maintenance 19 6 1 Fuse Replacement 19 6 2 Draining The Reservoir 19 Chapter 7 Specifications 20 Chapter 8 Mechanical Drawings 22 Chapter 9 Certification and Compliance 23 Cha...

Страница 4: ...ing can cause electric shock resulting in severe injury or even death Do not operate without cover installed WARNING This unit must not be operated in explosive environments WARNING Always power off the unit before opening the housing CAUTION Never disassemble the chiller as irreparable damage may occur CAUTION Do not operate the chiller in ambient temperatures of 40 ºC or higher CAUTION Do not op...

Страница 5: ...e LK220 features valved quick connections Two valved quick connection fittings and 5 meters of hose with 4 mm inner diameter are included in the package The LK220 is designed to be used with the CDTX Coolflow DTX Refrigerant Antifreeze which is available on the Thorlabs website This liquid chiller is compatible with most ethylene glycol based antifreeze or coolant Water can also be used as an alte...

Страница 6: ...g List The package contains the following items 1 Chiller 1 Power Cord 1 USB Cable 5 Meters of 4 3 mm 0 17 Inner Diameter Hose 1 Siphon Pump 1 Funnel 2 CPC Valved Quick connection Fittings for 4 3 mm 0 17 Inner Diameter Hose 1 Flash Drive Containing the Operation Software and Manual ...

Страница 7: ...creen F5 Knob for Adjustment and Confirmination LED Indicator F6 SMA Port for Trigger IN 5 V CMOS F7 BNC Port for Interlock 0 V to 5 V F8 BNC Port for Monitor 0 V to 5 V F9 USB Port F10 Airflow Inlet B1 AC Power Inlet Fuse Drawer Main Power Switch B2 Airflow Output B3 1 4 Hose Valved Coupling Insert for Coolant Supply B4 1 4 Hose Valved Coupling Insert for Coolant Return F2 F1 F6 F7 F5 B1 F4 F8 F3...

Страница 8: ...the female quick connection fittings provided in the package Then connect the hose to the coolant in out port on the back panel of the chiller Connect the other side of the hoses to the thermal load Figure 2 Ferruleless Compression Fitting for Easy Connection with Tubing Figure 3 Connecting Hoses to the LK220 ...

Страница 9: ...to I to power on the device Press the secondary power switch F1 in Figure 1 on the front panel to enable the system Leave the reservoir open and set the target temperature to room temperature see section 4 2 for details Start running the chiller The pump will start filling the tubes and heat load with coolant and the air remaining inside will be released to the atmosphere at the open reservoir If ...

Страница 10: ...knob to confirm the temperature value Select the Run Stop option to enable the device Figure 6 Quick Operation to Run LK220 by Panel Control 4 2 2 SetTemp Select the SetTemp button to enter the set temperature screen the target temperature and temperature window can be set here The temperature control window defines the allowed temperature shift of the device Please note that a warning message app...

Страница 11: ...temperature is set by the Analog IN port and the RUN STOP of the chiller is controlled by the Trigger IN port Ctrl SEN Control Sensor INT The internal sensor measuring the output coolant temperature is selected to provide the actual temperature reading EXT The external TSP TH sensor connected on the front panel is selected to provide the actual temperature reading If this control sensor is selecte...

Страница 12: ...by TRIG ANG When the Unit is in Standby and TRIG ANG Operation Mode Cooling When the Unit is Running and the Actual Temperature is Higher than the Target but within the Temperature Window Heating When the Unit is Running the Actual Temperature is Lower than the Target but within the Temperature Window Low ActTemp When the Unit is Running the Actual Temperature is Lower than the Target and Outside ...

Страница 13: ...r Coolant Level is 25 of the Maximum Coolant Capacity e No Flow Error the Flow Measured by the Flow Meter is 0 1 Litre per Minute LPM for more than 30 seconds f Pump Failure Error Pump Open Circuit and Short Circuit g TEC Failure Error TEC Open Circuit and Short Circuit h Fan Failure Error Fan Open Circuit and Short Circuit i EXT Sensor Error the Sensor is Set to External but no Temperature Sensor...

Страница 14: ...st filter behind the front panel Users can remove the dust filter to achieve the full cooling power of the chiller which is 200 W when the actual temperature is kept the same as the ambient temperature With the filter installed there is a 30 W to 50 W loss of cooling power Please note that long term operation of the chiller without a filter is only recommended for a standard photonics lab environm...

Страница 15: ... The or character determines if the string is a command or a query All strings commands and queries must be terminated by a carriage return CR or by pressing the Enter key on the computer The command structure is as follows Keyword argument CR Here keyword defines the function and argument as a numerical value followed by a carriage return CR Note that some commands might have more than one argume...

Страница 16: ...t BETA Return the β value of the thermistor of external sensor when the external sensor type is set to 8 other 10k ohm thermistor n from 0 to 9999 Set Pump Driver PUMP n Set driving power of the coolant pump in LK220 n 10 100 representing 10 100 Get Pump Driver PUMP Return the driving power of the coolant pump in LK220 range 10 100 Set Fan Mode FAN n Set the duty cycle of the main cooling fan n 0 ...

Страница 17: ...e Commands Return All of the command list in the Table1 IDN Get device Information Queries the device part number hardware and firmware versions Return THORLABS LK220 HV x xx FV x xx Where HV is the hardware version and FV is the firmware version ST Get Device Information Return an 8 bit byte was defined as in below table Device state define 8bit bit0 1 Standby bit1 1 Heating bit2 1 Cooling bit3 1...

Страница 18: ...D n Set Control Mode Set control mode n 0 Local 1 Local Analog 2 Trig 3 Trig Analog MOD Get Control Mode Return control mode n n 0 Local 1 Local Analog 2 Trig 3 Trig Analog SENS n Set Control Sensor Set which sensor will be providing the actual temperature reading n 0 Internal Sensor 1 External Sensor SENS Get Control Sensor Get the state on which sensor has be selected to provide the actual tempe...

Страница 19: ...ver Return the duty cycle of the main cooling fan n 0 Auto 1 0 2 25 3 50 4 75 5 100 TEC Get the TEC Current Return the TEC current n n from 0 to 10 0 representing 0 10 0 A FLOW Get Liquid Flow Rate Return the coolant flow rate n n from 0 to 5 0 representing 0 5 0 LPM Liter per Minute KNOB n Set Knob State Set the knob state n 0 Unlock n 1 Locked When set to locked LK220 will not respond to any mov...

Страница 20: ...00 means the gain value of the D share is 1 00 PERIOD n Set Period Parameter Set the integrating period of the PID servo loop n 500 5000 representing 500 5000 ms E g PERIOD 2000 means to set the integrating period of the PID servo loop to 2000 ms PERIOD Get PID Period Time Value Return the integrating period of the PID servo loop n n 500 5000 representing 500 5000 ms E g 2000 means the integrating...

Страница 21: ...t Temperature C Inlet Temperature C Cold Plate Temperature C Heat sink Temperature C Actual Temperature C Ambient Temperature C TEC Current A TEC Driving Duty Cycle Flow Rate LPM E g 10 00 23 42 23 44 23 36 23 44 24 01 7 7 21 0 0 0 means Target Temperature 10 00 C Inlet Temperature 23 42 C Cold Plate Temperature 23 44 C Heat sink Temperature 23 36 C Actual Temperature 23 44 C Ambient Temperature 2...

Страница 22: ... in the new one Please use Ø5 mm x 20 mm 10 A 250 VAC Type F fast blow fuse only 6 2 Draining The Reservoir The reservoir of the LK220 needs to be drained before shipping the chiller Before draining open the hatch and remove the cap on the reservoir Connect a small length of open tube on both the coolant In and coolant out Slightly lift the front side the chiller and wait until all coolant flows o...

Страница 23: ...se Polyurethane Hose 1 4 OD 17 ID 6 4 mm OD 4 3 mm ID General Specifications Noise at 1 meter 65 dBA Max Reservoir Volume 400 mL Power Supply 100 240 VAC 50 60 Hz Power Consumption 600 W Max Operating Temperature 0 to 40 C Operating Humidity 15 to 80 Storage Temperature 15 to 60 C Dimensions L x W x H e 310 0 mm x 140 0 mm x 320 0 mm Weight 8 1 kg a This is the typical value when the LK220 chiller...

Страница 24: ...temperature while the ambient temperature was 20 C for the dust filter on Figure 13 The Pumping Capability of LK220 at a 25 C ambient temperature and with water used as coolant Note that the kinematic viscosity of CDTX Coolflow DTX is approximately twice that of water and will result in less than half the flow performance 25 20 15 10 5 0 5 10 0 50 100 150 200 250 Dust Filter Off Dust Filter On LK2...

Страница 25: ...Liquid Chiller Page 22 CTN014239 D02 Chapter 8 Mechanical Drawings Figure 14 LK220 Diagram ...

Страница 26: ...Liquid Chiller Rev A December 6 2019 Page 23 Chapter 9 Certification and Compliance ...

Страница 27: ...Liquid Chiller Page 24 CTN014239 D02 ...

Страница 28: ...ducts such as Pure OEM products that means assemblies to be built into a unit by the user e g OEM laser driver cards Components Mechanics and optics Left over parts of units disassembled by the user PCB s housings etc If you wish to return a Thorlabs unit for waste recovery please contact Thorlabs or your nearest dealer for further information Waste Treatment is Your Own Responsibility If you do n...

Страница 29: ...merica Thorlabs Inc sales thorlabs com techsupport thorlabs com Europe Thorlabs GmbH europe thorlabs com France Thorlabs SAS sales fr thorlabs com Japan Thorlabs Japan Inc sales thorlabs jp UK and Ireland Thorlabs Ltd sales uk thorlabs com techsupport uk thorlabs com Scandinavia Thorlabs Sweden AB scandinavia thorlabs com Brazil Thorlabs Vendas de Fotônicos Ltda brasil thorlabs com China Thorlabs ...

Страница 30: ...www thorlabs com ...

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