xtemp UXP8201-CE030 Refrigerated And Heating Circulators Instruction Manual

Operating Instructions
Refrigerated and heating circulators
UXP8201-CE030
UXP8201-CE035

Preface

In order to make the equipment fully functional and ensure safety of the operator, the equipment, property and specimen, read this manual carefully and completely. When you have any question that cannot be  explained by this manual, consult us directly or your local distributors.
It is our pleasure to provide service for you.
General safety notes
The equipment is designed for operation with non-flammable heat transfer liquids only!
No silicone oil is allowed for use with this series of the equipment. The internal silicone rubber parts may swell when in contact with silicone oil resulting in leakage of the liquid! For engineering change related to the  use of silicone oil or other liquid, consult Xtemp engineer!
The equipment is intended for heating, cooling, conditioning of specimen and/or application system by immersion in or external circulating of the liquids. This leads to potential hazards of high or low temperatures,  fire, and the general hazards related to the application of electrical energy.
The operator is largely protected through the application of the appropriate standard specifications.
Further hazard sources may arise from the type of material being treated, e.g. mixing, dissolving, reacting and resultant excessive energy, liquid spillage resulting from immersion or removal of the specimen, and by  the fracture or rollover of the container and reaction with the heat transfer liquid.
It is not possible to cover all possibilities; they remain largely within the responsibility and the judgment of the operator!
The equipment must only be used as intended and described in these Operating Instructions. This includes operation by suitably trained qualified personnel.
The maximum temperature deviation both in normal condition and in electro- magnetic interference field according to IEC 61326-1 is ±0.2 °C.
Classes of the EMC standard IEC 61326-1
Class A: Equipment for operation only on networks without connected domestic areas;
Class B: Equipment for operation on networks with connected domestic areas.
Caution, Class A equipment must not be operated on power networks with connected domestic areas!
For your safety, pay attention to these important symbols as follows, during moving, installing operating and maintenance. The equipment is designed for safe operation because of your attention!

Warning, possibility of electric shock!
Inappropriate operation may cause hazard of electric shock and result in serious personal injury or death!

Caution, hot surface or area!
Accidental touching or approaching may cause burn hazard!

Caution, important note, and always refer to operating instructions (this document) for detailed information!
The equipment must be operated by well-trained qualified personnel only!
Wrong operation may cause personal injury, damage and/or mal-function of the equipment!

Symbols on the equipment
**Observe operating instructions!
Warranty**
Requirements for warranty
Xtemp Environments warrants the operational safety and functions of the equipment only under the conditions that:

• the equipment is operated and serviced exclusively in accordance with its intended purpose and as described in these operating instructions;
• the equipment is not modified;
• only original spare parts and accessories that have been approved by Xtemp Environments are used;
• inspections and maintenance are performed at the specified intervals.
  The warranty is valid from the date of delivery to the operator.

Chapter 1 Safety Warning and Instructions

The equipment is designed for safe operation under ambient conditions as follows:

• indoor use;
• altitude up to 2,000 m;
• temperature 5 °C to 40 °C;
• maximum relative humidity 80 % for temperatures up to 31 °C decreasing linearly to 50 % relative humidity at 40 °C;
• mains supply voltage fluctuations up to ±10 % of the nominal voltage;
• transient overvoltage up to the levels of overvoltage category II;
• temporary overvoltage’s occurring on the mains supply;
• Pollution degree 2 or less of the intended environment;
• Wet location

Excessive high or low temperature and/or humidity will significantly degrade electric safety of the equipment!
Note the effect of the altitude on the boiling point of the heat transfer liquids!

1.2 Safety warning
When heating, cooling and conditioning with specimen or application system which is intrinsically explosive, flammable or toxic or, which liberates hazardous substances as result of reacting, dissolving or mixing  under operating temperature range for normal use, safety acts and regulations for the particular chemicals and experimental laboratory shall be observed!
Not applicable for specimen or application system which develops tremendous energy as result of reacting, dissolving or mixing under operating temperature range for normal use!
The dielectric strength of the equipment may be degraded if after transport or storage in humid conditions. The equipment shall be powered as for normal use and conditioned at its maximum operating temperature  or 105°C, whichever is smaller, for at least 1h before commissioned for normal use. Warning, hazard of electric shock during the dry-out!

1.3 Caution
Caution, Risk of burn hazard!
Do not touch or approach parts or area with high temperature, for example, bath cover and the heat transfer liquid when maintained at operating temperature over 60°C!
Pull the temperature of the heat transfer liquid as close as possible to the ambient before attempting to shut down the equipment, except when operations as such are prohibited for the specimen! Warning, Hazards  of burn and possible electric shock resultant from unattended hot temperature or condensing and degraded dielectric strength!

Caution, Hazard of overflowing or low level!
Never attempt to initiate the equipment if no heat transfer liquid is filled or filling volume is lower than the minimum level as specified; Never move the equipment if the bath tank is fully filled with the heat transfer  liquid; The liquid level may change with the heating and cooling of the equipment, and with the immersion or removal of the specimen!
Disconnect the application system from the equipment only after proper draining of the heat transfer liquid, especially when the application system is charged to maximum volume by additional filling of the liquid!

Class I/NFL Caution, Risk of fire!
The Class I/NFL series of the equipment is designed for operation with non- flammable heat transfer liquids only! Water and mixture of water and glycol are the most popular non-flammable heat transfer liquids  appropriate for the equipment.
No silicone oil is allowed for use with this series of the equipment. The internal silicone rubber parts may swell when in contact with silicone oil resulting in leakage of the liquid!
Class III/FL Caution, Risk of fire!
The Class III/FL series of equipment are designed for operation with non- flammable and flammable heat transfer liquids! Alcohol and silicone oils are the most common flammable heat transfer liquids. Use special  care when using with these flammable liquids, including the proper setting of the adjustable overheating protection device.
The circulation of the heat transfer liquid is important for performance and safety! The kinematic viscosity, immersion and distribution of the specimen and, flow resistance of the application system and the  circulating tubing significantly influence the circulation of the liquid!
The first time commissioned for use or when exchange of the heat transfer liquid and, immediately after startup of the circulating pump, check if any liquid leakage exists in the external circulating tubing and fitting,  if head pressure of the pump and flow of the heat transfer liquid are in their rated range and, if the liquid level is in its range for safe operation!
Mixing and use of heat transfer liquids with different physical and/or chemical properties may adversely affect the performance and safety of the equipment! The liquid shall be completely drained and removed  before attempting to charge the other. When necessary, consult Xtemp or supplier of the liquid for particular application!
Never touch or attempt to handle the heat transfer liquid with temperature higher than +60°C!
Caution, burn hazard!
No draining of the heat transfer liquid with potential of chemical or biological hazard! Collect and identify the heat transfer liquid for future use! Consult Xtemp or manufacturer of the liquid for proper disposal!

Install an extraction system over the bath opening, if the operating of the equipment could lead to liberation of hazardous air or gas mixture, for example the evaporation of the heat transfer liquid! The rating of the  fume hood shall be at least the maximum possible exhausting temperature! If necessary for safety, additional temperature limiting and warning devices, condensate accumulator shall be installed for the extraction  system!

Caution: Note the following when connecting the equipment to an external application system:

1. The external circulating pipe, including flexible tubing and hose, shall be connected only after the equipment and application system are well seated and installed. The length and distribution path shall be as  short as possible and be so arranged that no kink and other mechanical stress develops during normal use which otherwise may result in thermal and/or liquid hazards!
2. Flexible hose, fitting and coupling are important for the safe operation of the equipment; Use only hose, fitting and coupling provided with the equipment or recommended by Xtemp!
3. The ratings of pressure and temperature for the hose, fitting and their resistance to the chemicals shall meet the requirements of the operating temperature, pressure range of the heat transfer liquid to be  delivered for application system!
4. Thermal insulation for hose, fitting, coupling and the application system are important for performance and safety! The materials of the insulation shall meet the requirements of the maximum operating  temperature range!
5. If no external circulating is necessary, use hose, fitting and coupling to short-circuit the liquid connections as for an external application!
   Keep the cables and wiring protected by conduit and/or hose and well secured; keep them clearly away from direct contact with any exposed heated/cooled parts of the equipment and application system!

Caution: Risk of frozen hazard!
When water is employed as heat transfer liquid, and when intended for standstill for long period and when experiencing low ambient is possible, run the equipment at operating temperature close to ambient for at  least 1hr. Empty the bath containing water, and remove the water completely.
Disconnect the equipment and remove the mains plug from power source.
Do not disassemble or exchange assembly parts and electric circuits by unauthorized personnel!
Hazard of possible electric shock! In case of repairing, contact your local distributors or supporting technicians.
Always remove the mains plug from the socket before cleaning, moving, maintenance or repairing!

****The first time powering up after repairing or standstill for long period, or at designated intervals under normal use, check the functionality of the following parts or components:
Hydraulic tightness and fastening of flexible tubing for circulating, status of insulation, at three months intervals; Aging, resistance to chemical stress from the heat transfer liquid and its temperature and pressure of  flexible hose, at 6 months intervals; Cutoff capability of the safety temperature limiter (STB) at 6 months intervals.

Chapter 2 Installing and Operating

2.1 Installing
2.1.1 Unpacking
Unpack the equipment and sort the accessories respectively and carefully. The packing carton, pallet, packing buffering stuffs etc., are designed for one shipment only. For future shipment, prepare the packing  materials as well as the way of packing as received.
Check the equipment and accessories for potential transport damages. If there is any damage visible on the equipment, a claim must be filled in writing with the freight forwarder; a notification to the freight  forwarder is obligatory so that the shipment can be examined. Inform your local distributor or supplier for any missing accessories and servicing or repairing.
Accessories lists（UXP8201-CE030）

Accessories lists（UXP8201-CE035）

Do not disassemble or exchange assembly parts and electric circuits by unauthorized personnel! Hazard of possible electric shock! In case of repairing, contact your local distributors or supporting technicians.
In case of damaged shipment and dent, deformation or distortion of the enclosure, contact authorized local distributor or Xtemp personnel.

2.1.2 Installing
Install the equipment on a rigid, nonflammable surface and well-ventilated place. The bench should be 600~800mm high for ease of operation. Keep enough space between wall and back of the equipment, and keep  clear of obstacles around the bottom of the equipment for better ventilation. If the equipment is installed on an unstable surface or floor, abnormal noise may be generated.
The voltage, frequency and current of the power supply must be rated at least the same as those designated on the name plate of the equipment. The switch board is recommended to be on the back right side of the  equipment and equipped with outlet matching the power plug of the equipment with protective ground (PE).
For possible wet location conditions, where cycle of evaporating and condensing, overflowing or spillage may occur and for protection against hazard of possible electric shock, use power socket with appropriate IP protection and additional residual current circuit breaker (RCD) with rated breaking capacity!
Power socket, switchboard with circuit breaker or residual current circuit breaker for the equipment shall be located closest to the equipment with good clearance for easy access, so that immediate interruption is  possible under emergent circumstance.

The minimum distance away from the ventilating holes at the back of the equipment to the wall, furniture or other installations shall be 300mm! The inlets of fresh air and outlets of exhausting air of the equipment  shall be kept clear of any obstacles.
Keep the equipment away from hot-air emitting source, direct sunshine, strong magnetic field and electric sparks!
Neither contamination of high concentration dust or corrosive gas, nor strong airflow surrounds!
Voltage, frequency and current for power supply must meet the requirements as designated on the nameplate! Use power socket matching the power plug of the equipment. Hot line （L）and neutral line（N）for  single phase equipment must not be reversed!
Socket for power supply must be equipped with protective ground (PE) to prevent against hazard of possible electric shock.

2.1.3 Connecting to an application system where necessary
The external circulating pipe, including flexible tubing and hose, shall be connected only after the equipment and application system are well seated and installed. The length and distribution path shall be as short as  possible and be so arranged that no kink and other mechanical stress develops during normal use which otherwise may result in thermal and/or liquid hazards!
Flexible hose, fitting and coupling are important for the safe operation of the equipment; Use only hose, fitting and coupling provided with the equipment or recommended by Our company! The ratings of pressure  and temperature for the hose, fitting and the jacket, container or heat exchanger of the application system, their chemical resistance to the heat transfer liquid shall meet requirements of the operating temperature  and/or pressure range of the heat transfer liquid to be delivered by the equipment!
Thermal insulation for hose, fitting, coupling and the application system are important for performance and safety! The materials of the insulation shall meet the requirements of the maximum operating temperature range!
Keep the cables and wiring protected by conduit and/or hose and well secured; keep them clearly away from direct contact with any exposed heated/cooled parts of the equipment and application system!

2.2 Descriptions
2.2.1 Front view

Fig 1 Front view
02 Controller panel and power switch
03 Fresh-air inlets
20 Liquid connection, return
21 Liquid connection, outlet
76 bath cover

2.2.2 Back view

Fig 2 Back view
04 Exhausting openings
18 Handle
22 Power cord
23 Drain device
29 IEC socket and cable for compressor

The inlets of fresh air and outlets of exhausting air of the equipment shall be kept clear of any obstacles, so that no close-loop of the air circulating may develop.
If no external circulating is necessary, use hose, fitting and coupling to short-circuit the liquid connections as for an external application system!
The equipment is not applicable for specimen or application system which develops tremendous energy as result of reacting, dissolving or mixing under operating temperature range for normal use!
2.2.3 External circulating kit (assembled)

Fig 4 External circulating kit
101 Liquid connection assembly
102 U-type silicone liquid shortcut
103 L-type silicone adaptor, LL
104 L-type silicone adaptor, SL

The flow rate and direction at the external circulating return may also influence the performance and safety of the equipment! Reduced flow may produce an uneven circulating of the liquid and temperature  distribution, while strong circulating may lead to overflow or splash of the liquid! Flow adaptor or limiter may be used for proper adjustment of the flow rate and direction.
The independent safety temperature limiter (STB) and liquid level cut out (LLCO) are important for safety. Class I/NFL equipment is incorporated with fixed STB for non-flammable heat transfer liquid only, while  Class III/FL with adjustable STB and liquid level cut-out for flammable heat transfer liquid.
The pump inlet shall be clear of any obstacles! The minimum distance for the pump inlet to the bath bottom shall be 20mm. Sometimes a piece of paper mark from the specimen, gauze or collection of dirt may block  the flow of the pump and circulation, resulting in degradation of performance and overheating!
Regular check of the STB and, level switch if equipped, is requirement for safety. Refer to 4.2 for detailed procedures.

****Caution, flammable liquid, no fire!
Flammable heat transfer liquid may be used for Class III/FL equipment. Use special care when using with flammable liquids!
If any flammable liquid is put into the equipment, apply warning mark of flammable hazard visible to the operator and responsible body.
WARNING: Keep clear of obstruction all ventilation openings in the enclosure, the application system or in the structure for building-in.
WARNING: No smoking! No flame! Do not use electrical parts which may produce spark when operating around the equipment and the application system.
WARNING: Drain and recover the liquid when the equipment idles, if the flammable heat transfer liquid is used with open bath tank and, if it is highly volatile at ambient.
The first time powering up after repairing or standstill for long period, or at designated intervals under normal use, check the functionality of the following parts or components:
Cutoff capability of the safety temperature limiter (STB) at 6 months intervals；
Cutoff capability of the low liquid level cut out (LLCO), at 6 months intervals!

2.2.4 Put into operation
Use heat transfer liquid only as designated for the equipment. Use non- flammable heat transfer liquid for Class I/NFL equipment only. No silicone oil may be used with Class I/NFL equipment.
Flammable heat transfer liquid may be used for Class III/FL equipment. Use special care when using with flammable heat transfer liquid!
Fill the bath tank with applicable heat transfer liquid to a level appropriate for operation. Keep in mind that the level may change with the heating and cooling of the equipment, and immersion and removal of the  specimen.
If an application system is connected, additional liquid may be necessary for appropriate level once initiated.

Class I/NFL
Caution, Risk of fire!
The Class I/NFL series of the equipment is designed for operation with non- flammable heat transfer liquids only! Water and mixture of water and glycol are the most popular non-flammable heat transfer liquids  appropriate for the equipment.
No silicone oil is allowed for use with this series of the equipment. The internal silicone rubber parts may swell when in contact with silicone oil resulting in leakage of the liquid!

Class III/FL Caution, Risk of fire!
The Class III/FL series of equipment are designed for operation with non- flammable and flammable heat transfer liquids! Alcohol and silicone oils are the most common flammable heat transfer liquids. Use special  care when using with these flammable liquids, including the proper setting of the adjustable overheating protection device.
Caution, Hazard of overflowing or low level!
Never attempt to initiate the equipment if no heat transfer liquid is filled or filling volume is lower than the minimum level as specified; Never move the equipment if the bath tank is fully filled with the heat transfer  liquid; The liquid level may change with the heating and cooling of the equipment, and with the immersion or removal of the specimen!
Disconnect the application system from the equipment only after proper draining of the heat transfer liquid, especially when the application system is charged to maximum volume by additional filling of the liquid!

Chapter 3 Controller Descriptions and Operation

3.1 Controller panel

Fig 5 Controller panel
60 Reset button (for resetting when alarming, the
circle indicating the location)
61 Display for temp and working parameters
62 Status indicators
63 Key board
64 Power switch

3.1.1 Display for temperature and working parameters
Normally it displays the bath temperature once switched on and initiated or oFF when standstill.
Other possible symbols include: SEt, Ht, Lt, CooL, Auto, Atc AS, ASd, cF, dEFt, ESc, Stb. Related definitions are as follows:
Ht: This parameter is an absolute value and used for reminding only. When temperature in the bath is higher than the set value, Ht is displayed. The controller will trigger a beeping alarm and disable the heating.  While the actual temperature is higher than the Ht setting, the Ht may be set to a higher value by pressing so that Ht beeping can be cleared. If the actual temperature is recovered to lower than the Ht setting, the Ht  alarm will disappear automatically with seconds of delay, or may be cleared immediately by pressing heating is possible only if the Ht is cleared.
Lt: This parameter is an absolute value and used for reminding only. When temperature in the bath is lower than the set value, Lt is displayed. The controller will trigger a beeping alarm.
While the actual temperature is lower than the Lt setting, the Lt may be set to a lower value by pressing . The so that Lt beeping can be cleared. If the actual temperature is recovered tohigher than the Lt setting, the Lt alarm will disappear automatically with seconds of delay, or may be cleared immediately by pressing .
CooL: Control parameter for compressor, and select among three modes, Auto, on and oFF:
on：Compressor cooling with counter heating by PID, provided that the actual temperature is below 40 °C.
Auto：Compressor on and off automatically. During heating up, once full heating is necessary, the compressor will be turned off, until the actual temperature close to set temperature. if the set temperature over 40  °C, and no cooling is required, the compressor will also be turned off. If the set temperature is lower than the actual temperature, and when the actual temperature below 40 °C, the compressor will be switched on  and keep working continuously.
oFF：The compressor is disabled, and the heater is regulated by PID.
Auto: Select between AoFF and Aon, which means manually starting and automatically starting.
Atc: Absolute temperature calibration (Atc), when the temperature displayed differs from the temperature measured by a standard thermometer, Atc is used to calibrate the display.
AS: Timer for automatic startup. Valid only when the equipment is in standby mode. The equipment will be initiated automatically once the set time elapses. The equipment may be started immediately if is operated  regardless of the remaining AS time.
ASd: Timer for automatic shutdown. Valid only when equipment is in operating mode. The equipment will be terminated automatically once the set time elapses. The equipment may be terminated immediately if is  operated regardless of the remaining ASd time.
cF: Shifting of the temperature measurement units. c means degree Centigrade and F means degree Fahrenheit. cF setting affects all the parameters related to temperature, such as the display temperature, setting  temperature, Ht, Lt and so on. Relationship between c and F is as follows °F=32+1.8×°C, °C=(°F-32)/1.8
For example: 0°C=32°F, 212°F=100°C.
dEFt：Return to the factory default setting. It may be used when system halts or any other abnormal situation occurs.
ESc: Exit the SEt menu.
°F=32+1.8×°C, °C=(°F-32)/1.8
For example: 0°C=32°F, 212°F=100°C.
dEFt：Return to the factory default setting. It may be used when system halts or any other abnormal situation occurs.
ESc: Exit the SEt menu.

3.1.2 Working status indicating
Heater: Press for more than 2 seconds to initiate the circulating pump. Orange LED will be steadily lit with full power heating; When LED flashes, the heating power is automatically adjusted to meet actual need.  LED flashing frequency keeps constant when temperature is stabilized.
Compressor: Press for more than 2 seconds to initiate the circulation. If cooling is desired, blue LED lights with about 2min delay, after which refrigeration is possible.
Circulating pump: for more than 2 seconds to initiate the circulating pump with LED on, after which the heating operation is possible.
Alarm: Red LED is on, when there is beeping and warning for safety or error is triggered.
The warning or error of the sensor may be accompanied by the following:
Er01: Warning of temperature sensor short-circuit.
Er02: Warning of temperature sensor open-circuit.
ourh: Warning of the bath temperature far beyond Ht.
lEuL: Class III/FL only, the liquid level in the bath is below the minimum. Once LEuL alarm is triggered, LED flashes for warning and both the heating and circulating pump are disabled. The warning and  protection against heating and circulating are locked even if the level is recovered. For resetting, press the RESET button (invisible button, Fig 5-60), followed by. Since the RESET button is invisible, make sure that  the operation is valid.
Stb: In case Stb or LLCO is triggered and an alarm is activated, the alarm will be locked with a continuous beeping even if the temperature is recovered or level is resumed. For clearance of the alarm, depress the  RESET button as shown in Fig 5-60 followed by. Since the RESET  button is invisible, make sure that the operation is valid.

circulating pump is  activated and temperature control is initiated.
| 2| Set the working
temperature| Press the button for
less than 1 second| SEt is first displayed, then press to enter change the digits by pressing accept the setting by pressing
| 3| Display the parameters of  temperature programming| Press the button for less than 1 second| When the programming is in progress, it displays the segment  number, temperature, remaining time and cycles of active  program. The parameters are cycled and displayed for 2 times with each delay of about 2 seconds, and then exit automatically.
| 4| Set the working parameters| Press and hold the key for  more than 2 seconds| Ht is first displayed, press for Lt, Cool, Auto, Atc , AS, ASd,  cF, dEFt, ESc Press to enter for change of a definite setting of  the working parameter, for example Ht.
Change the digits or setting by pressing , accept the  setting by pressing to enter, or confirm and exit  automatically in 4 seconds.
+| 5| Set the programming parameters| Press and at the same time  then release the buttons| The function is optional. The parameter of first segment t1 is displayed. Press to display original time, press for  a new value, confirm the setting by pressing to display  temperature of the first segment M1; Press to display  the original temperature, press the setting by pressing for a new value, confirm to enter the setting of second segment. 5 Following  the steps as for the first segment for segments 2, 3 … to  6 maximum. If segments of less than 6 are desired, for  example  only 2 segments are necessary, use 00:00 for t3
after confirmation of M2.
Press to display n, which means the number of program circles.1 ～99 means 1 cycle to 99 circles maximum and 0 means  unlimited circles.
Press to confirm and exist.
Default parameters: t= 00:00, M=25, n=99
+| 6| Initiate or
terminate
programming| Press
and at the same time and release the buttons| The temperature program may be initiated either in standby mode or  running mode. If Auto setting is Aon, the equipment will automatically resume to the mode before the program is initiated once the program  is terminated  automatically. The setting of Auto=Aon is recommended, if continuous operation is desired after unexpected interruption of short power failure.
+| 7| Initiate or terminate the timer| Press and at the same time, then release the buttons| The timer function is optional. When the equipment is in running  mode, timer for ASd is valid, while the equipment is in standby mode, timer for AS is valid. The time is set by AS and ASd.
+| 8| Move between settings or increase the value| Press the key shortly for slow movement and continuously  for fast changing|
| 9| Display scanning for internal  and external temperatures| Press the button shortly| Touch the button to shift the temperature display, touch again or wait  for 5 seconds to resume the temperature display. For internal temperature, symbol of c is fixed, while for external temperature, symbol of c flashing

3.2 Set the working parameters

1. Set the working temperature Refer to No.2 in the table.
2. Set high temperature limit value Press for more than 2 seconds until Ht is displayed. Press to enter Ht setting. Original Ht value is displayed, and press to get the desired value. Press and exit the SEt screen or exit  automatically in 4 seconds.
3. Set low temperature limit value
   Press for more than 2 seconds until Ht is displayed. Scroll the menu by displays Lt. Press to enter Lt setting. Original Lt value is displayed, press get the desired value. Press 4 seconds.

3.3 Constant temperature control

1. Connect the power by inserting the power plug, or engage the circuit breaker on the switch board.
2. Turn on power switch and the controller runs self-check to display: 88888, LEDs on, software version number, AoFF (Aon will show up if Auto is set to Aon) settings for Ht、Lt. Refer to 3.5 for procedures about Aon and AoFF  setting. The software version number may change with technique updates.
3. Check and/or set the working temperature, refer to No. 2 in the table.
4. If the equipment is in the standby state, press for more than 2 seconds, the circulating pump will start to operate and the heater temperature. is on if the setting is higher than the actual
5. When the temperature in the bath is lower than the set value, heating LED is on and the equipment is in operation and start to heat. When the set temperature and actual temperature are quite different, heating LED will be steadily  lit with full power heating and the temperature will go up with full speed. As the temperature approaches the set point, the LED flashes as desired and the controller decreases the power for the heater. With the actual temperature  equals to the set temperature, the controller keeps constant power output.
6. To terminate the temperature control, press for more than 2 seconds. The circulating pump and heater are stopped. The LEDs go off, and the display shows oFF

Connect the power from behind the equipment. Plug in and remove the cable by directly holding the plug. No dragging of cable in any part. Protect the cable from being damaged by contacting with the hot/cold surface of the equipment or mouse etc!
Caution, Hazard of overflowing or low level!
Never attempt to initiate the equipment if no heat transfer liquid is filled or filling volume is lower than the minimum level as specified; Never move the equipment if the bath tank is fully filled with the heat transfer liquid; The liquid level  may change with the heating and cooling of the equipment!
Disconnect the application system from the equipment only after proper draining of the heat transfer liquid, especially when the application system is charged to maximum volume by additional filling of the liquid! The liquid level will  change significantly with the immersion or removal of the specimen!

The circulation of the heat transfer liquid is important for performance and safety! The kinematic viscosity, immersion and distribution of the specimen and, flow resistance of the application system and the circulating tubing significantly influence the circulation of the liquid!
The first time commissioned for use or when exchange of the heat transfer liquid and, immediately after startup of the circulating pump, check if any liquid leakage exists in the external circulating tubing and fitting, if head pressure of the  pump and flow of the heat transfer liquid are in their rated range and, if the liquid level is in its range for safe operation!
Mixing and use of heat transfer liquids with different physical and/or chemical properties may adversely affect the performance and safety of the equipment! The liquid shall be completely drained and removed before attempting to  charge the other. When necessary, consult manufacturer or supplier of the liquid for particular application!
Never touch or attempt to handle the heat transfer liquid with temperature higher than +60°C!
Caution, burn hazard!
No draining of the heat transfer liquid with potential of chemical or biological hazard! Collect and identify the heat transfer liquid for future use! Consult manufacturer or supplier of the liquid for proper disposal!

Install an extraction system over the bath opening, if the operating of the equipment could lead to liberation of hazardous air or gas mixture, for example the evaporation of the heat transfer liquid! The rating of the fume hood shall be at  least the maximum possible exhausting temperature! If necessary for safety, additional temperature limiting and warning devices, condensate accumulator shall be installed for the extraction system!

3.5 Setting for restart mode after power failure, Auto
Press for more than 2 seconds until screen displays Ht. Scroll the menu by displayed, then press until Auto is to enter. Use automatic power-on function, use Aon, and press to select between Aon and AoFF. For to confirm and  exit the setting. In this case, the equipment will automatically resume to the status before power being interrupted. If the mode is set to AoFF, press for more than 2 seconds to start the equipment where necessary.

Other settings

1. The default unit for temperature measurements and setting is degree centigrade. It may be changed to Fahrenheit or Centigrade as desired. Refer to Table and item No. 4, use cF and similar steps for procedures.
2. The compressor is set to Auto as default, it works automatically when the cooling is required, and stop when full heating is desired, at or below temperature of 40 °C. The compressor may be disabled not to work at any time by  setting Coolto oFF, or to work continuously by setting Coolto on. The compressor will not work at any time at temperature over the limit. Refer to Table and item No. 4, use Cool and similar steps for procedures.

Use special care to change Cool setting. The compressor will never work with Cool set to oFF, and will work continuously even if full heating is desired with Cool set to on.

Chapter 4 Maintenance

4.1 Regular maintenance

1. Clean the bath interior and exterior of the equipment periodically to keep the equipment clean;
2. Check for hydraulic tightness and fastening of the connections for flexible hose, fitting and coupling;
3. Check fixing screws periodically, and if any loose, fix it.

Remove the plug from power line before cleaning. Use soft dry tissue to clean the bath interior and avoid any splashing or washing!
If any water or other conductive material fall into the equipment containing electric and/or electronic parts and components, disconnect the power immediately. Power on only after water or foreign material is completely evaporated or removed.

4.2 Regular check of the STB
Regular check of the STB is required for safe operation. Intervals of six months for normal use, or the first time powering up after repairing or standstill for long period, are recommended for regular check of the functionality. Check the STB as follows:

1. Fill the tank with water to level just over the highest point of the heating coil;
2. Set the temperature at 10°C above the ambient and/or the liquid, so that it keeps heating, LED is continuously on;
3. Initiate the temperature control as for normal use, i.e. the pump is circulating and heating is in full capacity;
4. Drain the bath so that the heater and the STB are exposed to the air completely. Make sure no liquid spraying out from the circulating return, dripping from the drain device on the bench or floor;
5. The liquid evaporates immediately from hot surface of the heater. Keep running dry for a couple of seconds until the Stb warning is displayed. Caution, Never run dry for more than 90s!
6. Close the drain device, and fill the tank with water. The STB resets automatically once temperature resumes to below designated limit value.

Caution, Risk of burn hazard and liquid spillage!
Do not touch hot surface of the heater! Keep away from evaporating hot steam! Use protective gloves or glasses if necessary!
Never run dry for more than 90s! Overheating of the coil may damage the heater or degrade its insulation strength!
The first time powering up after repairing or standstill for long period, or at 6 months intervals under normal use, check the functionality of the safety temperature limiter (STB)!

4.3 Checking and replacing the fuse
With the mains plug connected and power switch in “on” position and if no LED and digits display, check the fuse first. If any doubt that checking and replacing fuse is necessary, use a fuse with the same size and capacity as rated and do  as follows:

1. Make sure the mains plug has been removed;
2. Loosen the two screws on the top and 4 screws at the back of the controller as shown in Fig 6- 80. Remove the cove plate and check or replace the fuse;
3. Replace the cover and fasten the six screws.

Do not disassemble or exchange assembly parts and electric circuits! Hazard of possible electric shock!
Except for replacing the fuse, there is no other part necessary for customer to disassemble or repair. If repairing is desired, contact with authorized engineer.
Always remove the mains plug from the power socket when performing checking or replacing the fuse, and never use any fuse different from the original one. Secure the fuse once checked or replaced. For servicing or maintenance, call authorized service engineer.

Fig 6 Location of the fuse and Pt100 sensor
81 Mains fuse (15A)
82 Terminal for Pt100

4.4 Checking and charging of the refrigerated equipment If the compressor
LED is on, while the equipment does not cool down, check function of the refrigerated equipment as follows:

1. Set the operating temperature at 20°C, while keeping the compressor running (for example, the ambient temperature is higher than 25°C while keep the refrigerating running);
2. Check if fresh air intakes and exhausting air leaves freely. Use one piece of A4 size paper and put it over surface of the inlet (Fig 1-3) with ventilating openings for checking intake of the fresh air. If the paper is hold by the intake air,  it is indication of free air movement. Otherwise check the cleanness of the condenser inlet and the function of the condenser fan;
3. After continuous operation of the compressor for about 20 min, check the outlets of the exhausting air. Warm or even hot air flow indicates regular function of the refrigerated equipment. Otherwise there exists a leakage or  malfunction of the refrigerating system;
4. If any doubt that checking and charging of the refrigerating system is necessary, consult an authorized local distributor or engineer!

Chapter 5 Equipment Overview and Specifications

5.1 Equipment overview

• SMT assembled and microprocessor-based precise dynamic temperature control with temperature stability up to ±0.05°C;
• Independent immersion controller head, DIY for precise temperature system with different bath capacity and style;
• Immersion bath and external circulator in one unit, helps you to save money and make more space;
• Absolute temperature calibration (ATC) for accurate temperature control and AUTO-restart after power failure for continuous uninterrupted operation.

5.2 Specifications

Heater, pump and evaporator of SUS 316L
House materials| SPCC steel with powder coating
Liquid connections for external circulating| Nipple, 1/2″, 12.7mm (od)
Classification for HTL to DIN 12876| Class 1/NFL, non-flammable
Heat Transfer Liquid, No silicone oil
Safety features & auxiliary functions| Protection and warning against short /open-circuit PT100,
High-temperature cut off and low temperature alarm,
Protection against stalled pump motor or dry heating,
ATC (Absolute Temperature Calibration),
Auto start-up or standby after power failure
EMC for USA and Canada| Class A
(for operation only on networks without connected
domestic areas)
Duty cycle| Continuous
Capacity| L(G)| 6.5-9 (1.72-2.38)| 9-13 (2.38-3.43)
Bath size (WDH)| mm On)| 170x350x190 (6.7×13.8×7.5)| 300x350x190 (11.8×13.8×7.5)
Immersion depth| mm (in)| 160 (6.3)
Bath opening (WD)| mm On)| 170×180
(6.7×7.1)| 300×180
(11.8×7.1)
Overall size WxDxH| mm On)| 265x570x640
(10.4×22.4×25.2)| 395x570x640 (15.6×22.4×25.2)
Heater wattage| W| 1,000
Packing size (WDHJ| mm (in)| 340x625x 735
(13.4×24.6×28.9)|
Net weight| Kg (Ibs)| 37 (81.6)|
Gross weight| Kg (Ibs)| 39 (86.0)|
Voltage and frequency| 115 V-, 60 Hz
Current draw| A| 14| 15

Specifications are subject to change without notice!

XTEMP ENVIRONMENTS (SHANGHAI) CO., LTD.
http://www.xtemp-usa.com/

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